/* ========================================
   AmneziaVPN Web Panel — Design System
   ======================================== */

/* Google Font */
/* @import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap'); */

/* ===== CSS Variables / Tokens ===== */
:root {
    /* Color palette — deep dark with neon violet accent */
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-card: #1a1a26;
    --bg-card-hover: #22223a;
    --bg-input: #16162240;
    --bg-modal: rgba(10, 10, 15, 0.92);

    --border-color: rgba(255, 255, 255, 0.06);
    --border-hover: rgba(255, 255, 255, 0.12);
    --border-focus: rgba(138, 92, 246, 0.5);

    --text-primary: #f0f0f5;
    --text-secondary: #8b8ba0;
    --text-muted: #5a5a70;
    --text-accent: #a78bfa;

    --accent: #8b5cf6;
    --accent-light: #a78bfa;
    --accent-dark: #7c3aed;
    --accent-glow: rgba(139, 92, 246, 0.25);
    --accent-gradient: linear-gradient(135deg, #7c3aed, #2d2f71);

    --success: #22c55e;
    --success-bg: rgba(34, 197, 94, 0.12);
    --success-border: rgba(34, 197, 94, 0.25);

    --danger: #ef4444;
    --danger-bg: rgba(239, 68, 68, 0.12);
    --danger-border: rgba(239, 68, 68, 0.25);

    --warning: #f59e0b;
    --warning-bg: rgba(245, 158, 11, 0.12);

    --info: #3b82f6;
    --info-bg: rgba(59, 130, 246, 0.12);

    /* Spacing */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
    --space-2xl: 48px;
    --space-3xl: 64px;

    /* Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 30px rgba(139, 92, 246, 0.15);
    --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.04);

    /* Transitions */
    --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);

    /* Font */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

/* ===== Light Theme ===== */
[data-theme="light"] {
    --bg-primary: #f5f5f9;
    --bg-secondary: #eeeef3;
    --bg-card: #ffffff;
    --bg-card-hover: #f8f8fc;
    --bg-input: rgba(0, 0, 0, 0.03);
    --bg-modal: rgba(255, 255, 255, 0.92);

    --border-color: rgba(0, 0, 0, 0.08);
    --border-hover: rgba(0, 0, 0, 0.15);
    --border-focus: rgba(138, 92, 246, 0.4);

    --text-primary: #1a1a2e;
    --text-secondary: #5a5a78;
    --text-muted: #9090a8;
    --text-accent: #7c3aed;

    --accent: #7c3aed;
    --accent-light: #8b5cf6;
    --accent-dark: #6d28d9;
    --accent-glow: rgba(124, 58, 237, 0.15);
    --accent-gradient: linear-gradient(135deg, #7c3aed, #2d2f71);

    --success: #16a34a;
    --success-bg: rgba(22, 163, 74, 0.08);
    --success-border: rgba(22, 163, 74, 0.2);

    --danger: #dc2626;
    --danger-bg: rgba(220, 38, 38, 0.06);
    --danger-border: rgba(220, 38, 38, 0.15);

    --warning: #d97706;
    --warning-bg: rgba(217, 119, 6, 0.08);

    --info: #2563eb;
    --info-bg: rgba(37, 99, 235, 0.06);

    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.1);
    --shadow-glow: 0 0 20px rgba(124, 58, 237, 0.08);
    --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.06), 0 0 0 1px rgba(0, 0, 0, 0.03);
}

[data-theme="light"] body::before {
    background:
        radial-gradient(ellipse 600px 400px at 20% 10%, rgba(124, 58, 237, 0.04), transparent),
        radial-gradient(ellipse 500px 500px at 80% 80%, rgba(99, 102, 241, 0.03), transparent),
        radial-gradient(ellipse 800px 300px at 50% 50%, rgba(139, 92, 246, 0.02), transparent);
}

[data-theme="light"] ::-webkit-scrollbar-thumb {
    background: rgba(124, 58, 237, 0.2);
}

[data-theme="light"] .logo-text {
    background: linear-gradient(135deg, #1a1a2e, #7c3aed);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

[data-theme="light"] .theme-toggle {
    background: rgba(0, 0, 0, 0.04);
}

[data-theme="light"] .theme-toggle:hover {
    background: rgba(0, 0, 0, 0.08);
}

[data-theme="light"] .header-nav {
    background: #ffffff;
}

/* ===== Theme Toggle ===== */
.theme-toggle {
    width: 36px;
    height: 36px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    background: rgba(255, 255, 255, 0.04);
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    transition: all var(--transition-base);
    flex-shrink: 0;
}

.theme-toggle:hover {
    color: var(--text-primary);
    border-color: var(--border-hover);
    background: rgba(255, 255, 255, 0.08);
    transform: rotate(15deg);
}

/* ===== Reset & Base ===== */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

/* Animated mesh gradient background */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(ellipse 600px 400px at 20% 10%, rgba(99, 102, 241, 0.08), transparent),
        radial-gradient(ellipse 500px 500px at 80% 80%, rgba(139, 92, 246, 0.06), transparent),
        radial-gradient(ellipse 800px 300px at 50% 50%, rgba(79, 70, 229, 0.04), transparent);
    pointer-events: none;
    z-index: 0;
}

a {
    color: var(--accent-light);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--accent);
}

::selection {
    background: rgba(139, 92, 246, 0.3);
    color: #fff;
}

/* ===== Scrollbar ===== */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: rgba(139, 92, 246, 0.3);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(139, 92, 246, 0.5);
}

/* ===== Layout ===== */
.app-container {
    position: relative;
    z-index: 1;
    max-width: 1100px;
    margin: 0 auto;
    padding: var(--space-xl) var(--space-lg);
}

/* ===== Header ===== */
.app-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-lg) 0;
    margin-bottom: var(--space-xl);
    border-bottom: 1px solid var(--border-color);
}

.app-logo {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.logo-icon {
    width: 44px;
    height: 44px;
    background: var(--accent-gradient);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    box-shadow: var(--shadow-glow);
}

.logo-text {
    font-size: 1.35rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, #f0f0f5, #a78bfa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo-subtitle {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 400;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: 10px 20px;
    border: none;
    border-radius: var(--radius-md);
    font-family: var(--font-family);
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
    white-space: nowrap;
}

.btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1), transparent);
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.btn:hover::before {
    opacity: 1;
}

.btn-primary {
    background: var(--accent-gradient);
    color: #fff;
    box-shadow: 0 2px 12px rgba(139, 92, 246, 0.3);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 20px rgba(139, 92, 246, 0.4);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-secondary {
    background: var(--bg-card);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    border-color: var(--border-hover);
    background: var(--bg-card-hover);
}

.btn-danger {
    background: var(--danger-bg);
    color: var(--danger);
    border: 1px solid var(--danger-border);
}

.btn-danger:hover {
    background: rgba(239, 68, 68, 0.2);
}

.btn-success {
    background: var(--success-bg);
    color: var(--success);
    border: 1px solid var(--success-border);
}

.btn-sm {
    padding: 6px 14px;
    font-size: 0.8rem;
    border-radius: var(--radius-sm);
}

.btn-icon {
    width: 36px;
    height: 36px;
    padding: 0;
    border-radius: var(--radius-sm);
    font-size: 1.1rem;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

.btn .spinner {
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

/* ===== Cards ===== */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    box-shadow: var(--shadow-card);
    transition: all var(--transition-base);
}

.card-hover:hover {
    border-color: var(--border-hover);
    box-shadow: var(--shadow-card), var(--shadow-glow);
    transform: translateY(-2px);
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-lg);
}

.card-title {
    font-size: 1.1rem;
    font-weight: 600;
}

.card-subtitle {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: var(--space-xs);
}

/* ===== Section ===== */
.section-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--space-lg);
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.section-title .icon {
    font-size: 1.3rem;
}

/* ===== Server Card ===== */
.server-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
}

.server-card {
    position: relative;
    cursor: grab;
}

.server-card:active {
    cursor: grabbing;
}

/* While being dragged: dim the card so the user sees their selection. */
.server-card.dragging {
    opacity: 0.45;
    cursor: grabbing;
}

/* Drop target hint: highlighted border + slight lift. */
.server-card.drag-over {
    border-color: var(--accent);
    box-shadow: 0 0 0 2px var(--accent), 0 8px 20px rgba(139, 92, 246, 0.25);
    transform: translateY(-2px);
}

/* Ping indicator dot to the left of the server name. */
.ping-dot {
    display: inline-block;
    width: 9px;
    height: 9px;
    border-radius: 50%;
    margin-right: 6px;
    vertical-align: middle;
    background: #888;
    transition: background-color 0.25s ease, box-shadow 0.25s ease;
    flex-shrink: 0;
}

.ping-dot.ping-pending {
    background: #94a3b8;
    animation: ping-pulse 1.2s ease-in-out infinite;
}

.ping-dot.ping-ok {
    background: var(--success);
    box-shadow: 0 0 6px rgba(34, 197, 94, 0.55);
}

.ping-dot.ping-fail {
    background: var(--danger, #ef4444);
}

.ping-ms {
    font-size: 0.72rem;
    margin-left: 6px;
    color: var(--text-muted);
    font-family: 'SF Mono', 'Fira Code', monospace;
}

@keyframes ping-pulse {
    0%, 100% { opacity: 0.35; }
    50% { opacity: 1; }
}

.server-icon {
    width: 48px;
    height: 48px;
    background: var(--accent-gradient);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    flex-shrink: 0;
    box-shadow: 0 2px 12px rgba(139, 92, 246, 0.2);
}

.server-card .server-meta {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-md);
}

.server-card .server-name {
    font-size: 1.05rem;
    font-weight: 600;
}

.server-card .server-host {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-family: 'SF Mono', 'Fira Code', monospace;
}

.server-card .server-protocols {
    display: flex;
    gap: var(--space-sm);
    flex-wrap: wrap;
    margin-top: var(--space-sm);
}

.server-card .server-actions {
    display: flex;
    gap: var(--space-sm);
    margin-top: var(--space-md);
    padding-top: var(--space-md);
    border-top: 1px solid var(--border-color);
}

/* ===== Badge ===== */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    border-radius: var(--radius-full);
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.badge-success {
    background: var(--success-bg);
    color: var(--success);
    border: 1px solid var(--success-border);
}

.badge-danger {
    background: var(--danger-bg);
    color: var(--danger);
    border: 1px solid var(--danger-border);
}

.badge-info {
    background: var(--info-bg);
    color: var(--info);
    border: 1px solid rgba(59, 130, 246, 0.25);
}

.badge-warn {
    background: var(--warning-bg);
    color: var(--warning);
    border: 1px solid rgba(245, 158, 11, 0.25);
}

.badge-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: currentColor;
}

/* ===== Form Elements ===== */
.form-group {
    margin-bottom: var(--space-md);
}

.form-label {
    display: block;
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: var(--space-xs);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 11px 16px;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: var(--font-family);
    font-size: 0.9rem;
    transition: all var(--transition-fast);
    outline: none;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px var(--accent-glow);
    background: var(--bg-secondary);
}

.form-input::placeholder {
    color: var(--text-muted);
}

.form-textarea {
    min-height: 100px;
    resize: vertical;
    font-family: 'SF Mono', 'Fira Code', monospace;
    font-size: 0.82rem;
}

.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%238b8ba0' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    padding-right: 36px;
    cursor: pointer;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
}

.form-hint {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: var(--space-xs);
}

/* ===== Modal ===== */
.modal-backdrop {
    position: fixed;
    inset: 0;
    background: var(--bg-modal);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.modal-backdrop.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    width: 90%;
    max-width: 520px;
    max-height: 90vh;
    overflow-y: auto;
    padding: var(--space-xl);
    box-shadow: var(--shadow-lg);
    transform: translateY(20px) scale(0.97);
    transition: transform var(--transition-base);
}

.modal-backdrop.active .modal {
    transform: translateY(0) scale(1);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-lg);
}

.modal-title {
    font-size: 1.15rem;
    font-weight: 700;
}

.modal-close {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    border-radius: var(--radius-sm);
    font-size: 1.3rem;
    transition: all var(--transition-fast);
}

.modal-close:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}

.modal-footer {
    display: flex;
    gap: var(--space-sm);
    justify-content: flex-end;
    margin-top: var(--space-lg);
    padding-top: var(--space-lg);
    border-top: 1px solid var(--border-color);
}

/* ===== Protocol Card ===== */
.protocol-cards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
}

.protocol-card {
    position: relative;
    overflow: hidden;
}

.protocol-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--accent-gradient);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.protocol-card:hover::before {
    opacity: 1;
}

.protocol-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    margin-bottom: var(--space-md);
}

.protocol-awg .protocol-icon {
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.2), rgba(99, 102, 241, 0.1));
    color: var(--accent-light);
}

.protocol-legacy .protocol-icon {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.2), rgba(99, 102, 241, 0.1));
    color: var(--info);
}

.protocol-xray .protocol-icon {
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.2), rgba(245, 158, 11, 0.1));
    color: var(--warning);
}

.protocol-telemt .protocol-icon {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.2), rgba(16, 185, 129, 0.1));
    color: #38bdf8;
}

.protocol-dns .protocol-icon {
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.2), rgba(16, 185, 129, 0.1));
    color: var(--success);
}

.protocol-wireguard .protocol-icon {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.2), rgba(52, 211, 153, 0.1));
    color: #10b981;
}

.protocol-adguard .protocol-icon {
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.2), rgba(132, 204, 22, 0.1));
    color: #65a30d;
}

.protocol-socks5 .protocol-icon {
    background: linear-gradient(135deg, rgba(168, 85, 247, 0.2), rgba(217, 70, 239, 0.1));
    color: #c084fc;
}

/* ============================================================
   Promo blocks — locked teasers for not-yet-shipped features.
   They live inside .protocol-cards (a CSS grid) and span every
   column via `grid-column: 1 / -1`, so they always stretch the
   full width without hard-coding the column count.
   ============================================================ */
.promo-block {
    grid-column: 1 / -1;
    position: relative;
    overflow: hidden;
    padding: 22px 28px;
    border-radius: var(--radius-lg);
    color: #fff;
    cursor: not-allowed;
    isolation: isolate; /* keep blend modes / blurred orbs from leaking out */
    border: 1px solid rgba(255, 255, 255, 0.12);
    transition: transform 0.35s ease, box-shadow 0.35s ease;
    user-select: none;
}

.promo-block:hover {
    transform: translateY(-2px);
}

/* Slow shimmer that sweeps diagonally across the block — pure CSS, no JS. */
.promo-block::after {
    content: "";
    position: absolute;
    inset: -50% -10%;
    background: linear-gradient(115deg, transparent 35%, rgba(255, 255, 255, 0.18) 50%, transparent 65%);
    transform: translateX(-100%);
    animation: promo-shimmer 6s ease-in-out infinite;
    pointer-events: none;
    z-index: 1;
}

@keyframes promo-shimmer {
    0%, 20%   { transform: translateX(-100%); }
    50%, 70%  { transform: translateX(100%); }
    100%      { transform: translateX(100%); }
}

/* Floating blurred orbs that drift in the background. */
.promo-orbs {
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.promo-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(48px);
    opacity: 0.55;
    animation: promo-orb-drift 14s ease-in-out infinite;
}

.promo-orb:nth-child(1) { top: -40px;   left: 8%;   width: 220px; height: 220px; animation-delay: 0s; }
.promo-orb:nth-child(2) { bottom: -60px; left: 38%; width: 180px; height: 180px; animation-delay: -5s; }
.promo-orb:nth-child(3) { top: 10%;     right: 8%;  width: 200px; height: 200px; animation-delay: -9s; }

@keyframes promo-orb-drift {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33%      { transform: translate(20px, -16px) scale(1.12); }
    66%      { transform: translate(-12px, 14px) scale(0.92); }
}

.promo-lock-badge {
    position: absolute;
    top: 14px;
    right: 16px;
    z-index: 3;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    border-radius: 999px;
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    background: rgba(0, 0, 0, 0.35);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.18);
    color: #fff;
}

.promo-content {
    position: relative;
    z-index: 2;
    display: flex;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
}

.promo-icon {
    flex-shrink: 0;
    width: 56px;
    height: 56px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.9rem;
    background: rgba(255, 255, 255, 0.12);
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.18), 0 8px 24px rgba(0, 0, 0, 0.25);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    animation: promo-icon-float 4.5s ease-in-out infinite;
}

@keyframes promo-icon-float {
    0%, 100% { transform: translateY(0) rotate(0); }
    50%      { transform: translateY(-3px) rotate(2deg); }
}

.promo-text {
    flex: 1;
    min-width: 0;
}

.promo-title {
    font-size: 1.35rem;
    font-weight: 700;
    letter-spacing: -0.01em;
    margin-bottom: 2px;
    text-shadow: 0 2px 12px rgba(0, 0, 0, 0.25);
}

.promo-subtitle {
    font-size: 0.88rem;
    color: rgba(255, 255, 255, 0.85);
    line-height: 1.4;
    max-width: 70ch;
}

.promo-cta {
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 9px 16px;
    border-radius: 999px;
    font-size: 0.85rem;
    font-weight: 600;
    text-decoration: none;
    color: #fff;
    background: rgba(255, 255, 255, 0.18);
    border: 1px solid rgba(255, 255, 255, 0.28);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: background 0.2s ease, transform 0.2s ease;
    cursor: pointer;
    pointer-events: auto; /* block-level cursor:not-allowed shouldn't kill the CTA link */
}

.promo-cta:hover {
    background: rgba(255, 255, 255, 0.32);
    transform: translateY(-1px);
}

/* ----- Theme: AIVPN (purple/cyan, neural feel) ----- */
.promo-aivpn {
    background:
        radial-gradient(circle at 20% 0%, rgba(99, 102, 241, 0.6), transparent 60%),
        radial-gradient(circle at 80% 100%, rgba(236, 72, 153, 0.5), transparent 55%),
        linear-gradient(135deg, #312e81 0%, #6d28d9 50%, #be185d 100%);
    box-shadow: 0 16px 40px -10px rgba(109, 40, 217, 0.5);
}

.promo-aivpn .promo-orb:nth-child(1) { background: #06b6d4; }
.promo-aivpn .promo-orb:nth-child(2) { background: #d946ef; }
.promo-aivpn .promo-orb:nth-child(3) { background: #6366f1; }

.promo-aivpn .promo-icon {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.5), rgba(236, 72, 153, 0.4));
    text-shadow: 0 0 16px rgba(168, 85, 247, 0.6);
}

/* ----- Theme: Reverse Proxy (amber/red, shield/firewall feel) ----- */
.promo-revproxy {
    background:
        radial-gradient(circle at 100% 0%, rgba(251, 146, 60, 0.55), transparent 55%),
        radial-gradient(circle at 0% 100%, rgba(244, 63, 94, 0.45), transparent 55%),
        linear-gradient(135deg, #7c2d12 0%, #b91c1c 45%, #9d174d 100%);
    box-shadow: 0 16px 40px -10px rgba(185, 28, 28, 0.5);
}

.promo-revproxy .promo-orb:nth-child(1) { background: #fb923c; }
.promo-revproxy .promo-orb:nth-child(2) { background: #f43f5e; }
.promo-revproxy .promo-orb:nth-child(3) { background: #f59e0b; }

.promo-revproxy .promo-icon {
    background: linear-gradient(135deg, rgba(251, 146, 60, 0.5), rgba(244, 63, 94, 0.4));
    text-shadow: 0 0 16px rgba(251, 146, 60, 0.55);
}

/* Faint isometric grid overlay — gives the reverse-proxy block a "network" feel.
   Uses a tiled SVG-less approach via repeating linear gradients to keep CSS-only. */
.promo-grid-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    opacity: 0.18;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.5) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.5) 1px, transparent 1px);
    background-size: 28px 28px;
    mask-image: radial-gradient(ellipse at center, #000 30%, transparent 75%);
    -webkit-mask-image: radial-gradient(ellipse at center, #000 30%, transparent 75%);
    animation: promo-grid-pan 20s linear infinite;
}

@keyframes promo-grid-pan {
    from { background-position: 0 0; }
    to   { background-position: 56px 56px; }
}

/* ----- Responsive: stack content on narrow screens ----- */
@media (max-width: 720px) {
    .promo-content { gap: 14px; }
    .promo-cta { width: 100%; justify-content: center; margin-left: 0; }
    .promo-subtitle { font-size: 0.82rem; }
}

/* Respect users who turn off motion. */
@media (prefers-reduced-motion: reduce) {
    .promo-block::after,
    .promo-orb,
    .promo-icon,
    .promo-grid-bg {
        animation: none !important;
    }
}

.protocol-name {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: var(--space-xs);
}

.protocol-desc {
    font-size: 0.82rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-md);
    line-height: 1.5;
}

.protocol-status {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
}

.protocol-info {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
}

.protocol-info-item {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.protocol-info-label {
    font-size: 0.72rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.protocol-info-value {
    font-size: 0.88rem;
    font-weight: 500;
    font-family: 'SF Mono', 'Fira Code', monospace;
}

/* ===== Clients Table ===== */
.clients-section {
    margin-top: var(--space-xl);
}

.clients-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-lg);
}

.clients-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.client-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-md) var(--space-lg);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.client-item:hover {
    border-color: var(--border-hover);
    background: var(--bg-card-hover);
}

.client-info {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    flex: 1;
    min-width: 0;
}

.client-avatar {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    background: var(--accent-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    font-weight: 700;
    color: #fff;
    flex-shrink: 0;
}

.client-name {
    font-weight: 600;
    font-size: 0.92rem;
}

.client-meta {
    font-size: 0.78rem;
    color: var(--text-muted);
    display: flex;
    gap: var(--space-md);
    margin-top: 2px;
    flex-wrap: wrap;
    align-items: center;
}

.client-actions {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    flex-shrink: 0;
    margin-left: var(--space-md);
    flex-wrap: wrap;
    max-width: 140px;
}

/* ===== Config Display ===== */
.config-display {
    position: relative;
    margin-top: var(--space-md);
}

.config-text {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--space-md);
    font-family: 'SF Mono', 'Fira Code', monospace;
    font-size: 0.78rem;
    line-height: 1.7;
    color: var(--text-secondary);
    white-space: pre-wrap;
    word-break: break-all;
    max-height: 300px;
    overflow-y: auto;
}

.config-actions {
    display: flex;
    gap: var(--space-sm);
    margin-top: var(--space-sm);
}

/* ===== Toast Notifications ===== */
.toast-container {
    position: fixed;
    top: var(--space-lg);
    right: var(--space-lg);
    z-index: 2000;
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.toast {
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius-md);
    font-size: 0.85rem;
    font-weight: 500;
    box-shadow: var(--shadow-lg);
    animation: toast-in 0.3s ease-out;
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    max-width: 400px;
}

.toast-success {
    background: #0d2818;
    border: 1px solid var(--success-border);
    color: var(--success);
}

.toast-error {
    background: #2d1212;
    border: 1px solid var(--danger-border);
    color: var(--danger);
}

.toast-info {
    background: #0d1a2d;
    border: 1px solid rgba(59, 130, 246, 0.25);
    color: var(--info);
}

@keyframes toast-in {
    from {
        transform: translateX(100%);
        opacity: 0;
    }

    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* ===== Progress / Loading ===== */
.progress-bar {
    height: 4px;
    background: var(--bg-secondary);
    border-radius: var(--radius-full);
    overflow: hidden;
    margin: var(--space-md) 0;
}

.progress-fill {
    height: 100%;
    background: var(--accent-gradient);
    border-radius: var(--radius-full);
    transition: width 0.5s ease;
    position: relative;
}

.progress-fill::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 40px;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3));
    animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
    0% {
        transform: translateX(-40px);
    }

    100% {
        transform: translateX(40px);
    }
}

.loading-overlay {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: var(--space-md);
    padding: var(--space-3xl) 0;
    color: var(--text-muted);
}

.loading-spinner {
    width: 36px;
    height: 36px;
    border: 3px solid var(--border-color);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* ===== Log Output ===== */
.log-output {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--space-md);
    font-family: 'SF Mono', 'Fira Code', monospace;
    font-size: 0.78rem;
    line-height: 1.8;
    max-height: 250px;
    overflow-y: auto;
    color: var(--text-muted);
}

.log-line {
    padding: 2px 0;
}

.log-line.success {
    color: var(--success);
}

.log-line.error {
    color: var(--danger);
}

.log-line.info {
    color: var(--text-secondary);
}

/* ===== Empty State ===== */
.empty-state {
    text-align: center;
    padding: var(--space-3xl) var(--space-xl);
    color: var(--text-muted);
}

.empty-state .empty-icon {
    font-size: 3.5rem;
    margin-bottom: var(--space-lg);
    opacity: 0.5;
}

.empty-state .empty-title {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: var(--space-sm);
}

.empty-state .empty-desc {
    font-size: 0.88rem;
    max-width: 360px;
    margin: 0 auto var(--space-lg);
}

/* ===== Tabs ===== */
.tabs {
    display: flex;
    gap: 2px;
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    padding: 3px;
    margin-bottom: var(--space-lg);
}

.tab {
    flex: 1;
    padding: 10px 16px;
    border: none;
    background: transparent;
    color: var(--text-muted);
    font-family: var(--font-family);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    text-align: center;
}

.tab:hover {
    color: var(--text-secondary);
}

.tab.active {
    background: var(--bg-card);
    color: var(--text-primary);
    box-shadow: var(--shadow-sm);
}

/* ===== Back Link ===== */
.back-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-bottom: var(--space-lg);
    transition: color var(--transition-fast);
}

.back-link:hover {
    color: var(--text-primary);
}

/* ===== Divider ===== */
.divider {
    height: 1px;
    background: var(--border-color);
    margin: var(--space-lg) 0;
}

/* ===== Utility ===== */
.flex {
    display: flex;
}

.flex-col {
    flex-direction: column;
}

.items-center {
    align-items: center;
}

.justify-between {
    justify-content: space-between;
}

.gap-sm {
    gap: var(--space-sm);
}

.gap-md {
    gap: var(--space-md);
}

.mt-md {
    margin-top: var(--space-md);
}

.mt-lg {
    margin-top: var(--space-lg);
}

.text-muted {
    color: var(--text-muted);
}

.text-sm {
    font-size: 0.82rem;
}

.font-mono {
    font-family: 'SF Mono', 'Fira Code', monospace;
}

.hidden {
    display: none !important;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .app-container {
        padding: var(--space-md) var(--space-md);
    }

    .server-grid {
        grid-template-columns: 1fr;
    }

    .protocol-cards {
        grid-template-columns: 1fr;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .modal {
        width: 95%;
        padding: var(--space-lg);
    }

    .app-header {
        flex-wrap: wrap;
        gap: var(--space-md);
    }
}

@media (max-width: 480px) {
    .protocol-info {
        grid-template-columns: 1fr;
    }

    .stats-grid {
        grid-template-columns: 1fr 1fr;
    }
}

/* ===== Server Stats (inline pills) ===== */
.stat-pill {
    display: inline-flex;
    align-items: center;
    gap: 3px;
    padding: 3px 8px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    font-size: 0.68rem;
    font-weight: 500;
    font-family: 'SF Mono', 'Fira Code', monospace;
    color: var(--text-secondary);
    white-space: nowrap;
    cursor: default;
    transition: all var(--transition-fast);
}

.stat-pill:hover {
    border-color: var(--border-hover);
    color: var(--text-primary);
}

/* ===== Config Tabs ===== */
.config-tabs {
    display: flex;
    gap: 2px;
    background: var(--bg-secondary);
    border-radius: var(--radius-sm);
    padding: 3px;
    margin-bottom: var(--space-md);
}

.config-tab {
    flex: 1;
    padding: 8px 12px;
    border: none;
    background: transparent;
    color: var(--text-muted);
    font-family: var(--font-family);
    font-size: 0.8rem;
    font-weight: 500;
    cursor: pointer;
    border-radius: 6px;
    transition: all var(--transition-fast);
    text-align: center;
    white-space: nowrap;
}

.config-tab:hover {
    color: var(--text-secondary);
}

.config-tab.active {
    background: var(--bg-card);
    color: var(--text-primary);
    box-shadow: var(--shadow-sm);
}

.config-panel {
    display: none;
}

.config-panel.active {
    display: block;
}

/* ===== QR Code ===== */
.qr-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-lg);
}

.qr-container canvas {
    border-radius: var(--radius-md);
    box-shadow: 0 0 30px rgba(139, 92, 246, 0.15);
}

.qr-hint {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-align: center;
}

/* ===== VPN Link ===== */
.vpn-link-box {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--space-md);
    font-family: 'SF Mono', 'Fira Code', monospace;
    font-size: 0.72rem;
    line-height: 1.6;
    color: var(--accent-light);
    word-break: break-all;
    max-height: 200px;
    overflow-y: auto;
    user-select: all;
}

/* ===== Traffic Badge ===== */
.traffic-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 2px 8px;
    border-radius: var(--radius-full);
    font-size: 0.7rem;
    font-weight: 500;
    font-family: 'SF Mono', 'Fira Code', monospace;
}

.traffic-down {
    background: rgba(34, 197, 94, 0.1);
    color: #22c55e;
    border: 1px solid rgba(34, 197, 94, 0.2);
}

.traffic-up {
    background: rgba(59, 130, 246, 0.1);
    color: #3b82f6;
    border: 1px solid rgba(59, 130, 246, 0.2);
}

/* ===== Header Navigation ===== */
.header-nav {
    display: flex;
    align-items: center;
    gap: 4px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    padding: 5px;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 20px;
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: all var(--transition-base);
    text-decoration: none;
    white-space: nowrap;
    position: relative;
    letter-spacing: -0.01em;
}

.nav-link:hover {
    color: var(--text-primary);
    background: rgba(139, 92, 246, 0.08);
}

.nav-link.active {
    color: #fff;
    background: var(--accent-gradient);
    box-shadow: 0 4px 12px rgba(139, 92, 246, 0.3);
    font-weight: 600;
}

.nav-user {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding-left: var(--space-lg);
    border-left: 1px solid var(--border-color);
    margin-left: var(--space-sm);
    transition: border-color var(--transition-base);
}

/* Global Transition for Theme Switching */
body,
.card,
.app-header,
.header-nav,
.nav-link,
.btn,
.form-input,
.form-select,
.modal,
.modal-backdrop,
.nav-user {
    transition: background-color var(--transition-slow),
        border-color var(--transition-slow),
        color var(--transition-slow),
        box-shadow var(--transition-slow),
        transform var(--transition-base);
}

.nav-username {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-secondary);
    letter-spacing: -0.01em;
}

.nav-user .badge {
    padding: 2px 10px;
    font-size: 0.65rem;
    letter-spacing: 0.05em;
    font-weight: 700;
}

.nav-user .btn {
    padding: 6px 14px;
    font-size: 0.8rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
}

@media (max-width: 900px) {
    .header-nav {
        gap: 2px;
        padding: 4px;
    }

    .nav-link {
        padding: 6px 12px;
        font-size: 0.8rem;
    }
}

@media (max-width: 768px) {
    .app-header {
        flex-direction: column;
        gap: var(--space-md);
        align-items: stretch;
    }

    .header-nav {
        border-radius: var(--radius-md);
        justify-content: center;
    }

    .nav-user {
        border-left: none;
        margin-left: 0;
        padding-left: 0;
        padding-top: var(--space-sm);
        border-top: 1px solid var(--border-color);
        justify-content: center;
    }
}

/* ===== Badges ===== */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 2px 8px;
    border-radius: var(--radius-sm);
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

.badge-success {
    background: var(--success-bg);
    color: var(--success);
    border: 1px solid var(--success-border);
}

.badge-warn {
    background: var(--warning-bg);
    color: var(--warning);
    border: 1px solid rgba(245, 158, 11, 0.25);
}

.badge-danger {
    background: var(--danger-bg);
    color: var(--danger);
    border: 1px solid var(--danger-border);
}

.badge-info {
    background: var(--info-bg);
    color: var(--info);
    border: 1px solid rgba(59, 130, 246, 0.25);
}

.badge-secondary {
    background: rgba(255, 255, 255, 0.06);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

/* Additional layout helpers */
.hidden {
    display: none !important;
}

.gap-sm {
    gap: var(--space-sm);
}

.gap-md {
    gap: var(--space-md);
}

/* =========================================================
   2026 interface refresh — clean shell, sidebar, cards
   ========================================================= */
:root {
    --bg-primary: #070a12;
    --bg-secondary: #0d1322;
    --bg-card: rgba(17, 24, 39, 0.78);
    --bg-card-hover: rgba(30, 41, 59, 0.82);
    --bg-input: rgba(15, 23, 42, 0.72);
    --bg-modal: rgba(2, 6, 23, 0.72);
    --bg: var(--bg-primary);

    --border-color: rgba(148, 163, 184, 0.16);
    --border-hover: rgba(148, 163, 184, 0.28);
    --border-focus: rgba(96, 165, 250, 0.54);

    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #64748b;
    --text-accent: #93c5fd;

    --accent: #38bdf8;
    --accent-light: #7dd3fc;
    --accent-dark: #2563eb;
    --accent-glow: rgba(56, 189, 248, 0.22);
    --accent-gradient: linear-gradient(135deg, #38bdf8 0%, #6366f1 50%, #a855f7 100%);

    --radius-sm: 10px;
    --radius-md: 14px;
    --radius-lg: 18px;
    --radius-xl: 24px;
    --shadow-card: 0 18px 45px rgba(2, 6, 23, 0.34), inset 0 1px 0 rgba(255,255,255,0.05);
    --shadow-lg: 0 28px 90px rgba(2, 6, 23, 0.54);
    --shadow-glow: 0 0 34px rgba(56, 189, 248, 0.16);
}

[data-theme="light"] {
    --bg-primary: #f5f7fb;
    --bg-secondary: #edf2f7;
    --bg-card: rgba(255, 255, 255, 0.88);
    --bg-card-hover: #ffffff;
    --bg-input: rgba(241, 245, 249, 0.95);
    --bg-modal: rgba(15, 23, 42, 0.28);
    --bg: var(--bg-primary);

    --border-color: rgba(15, 23, 42, 0.10);
    --border-hover: rgba(15, 23, 42, 0.18);
    --border-focus: rgba(37, 99, 235, 0.35);

    --text-primary: #0f172a;
    --text-secondary: #334155;
    --text-muted: #64748b;
    --text-accent: #2563eb;

    --accent: #2563eb;
    --accent-light: #3b82f6;
    --accent-dark: #1d4ed8;
    --accent-glow: rgba(37, 99, 235, 0.14);
    --accent-gradient: linear-gradient(135deg, #2563eb 0%, #7c3aed 100%);
    --shadow-card: 0 18px 42px rgba(15, 23, 42, 0.08), 0 0 0 1px rgba(15,23,42,0.02);
    --shadow-lg: 0 24px 80px rgba(15, 23, 42, 0.18);
}

html { scroll-behavior: smooth; }
body {
    background:
        radial-gradient(circle at 12% 8%, rgba(56, 189, 248, 0.16), transparent 30%),
        radial-gradient(circle at 92% 18%, rgba(168, 85, 247, 0.14), transparent 34%),
        radial-gradient(circle at 45% 95%, rgba(99, 102, 241, 0.10), transparent 30%),
        var(--bg-primary);
}
body::before { opacity: 0.72; }

.app-shell {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 282px minmax(0, 1fr);
    gap: 0;
}

.sidebar {
    position: sticky;
    top: 0;
    height: 100vh;
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
    padding: 22px 18px;
    border-right: 1px solid var(--border-color);
    background: linear-gradient(180deg, rgba(15,23,42,.88), rgba(15,23,42,.62));
    backdrop-filter: blur(22px);
    -webkit-backdrop-filter: blur(22px);
    z-index: 12;
}
[data-theme="light"] .sidebar {
    background: linear-gradient(180deg, rgba(255,255,255,.92), rgba(255,255,255,.70));
}

.sidebar-logo {
    padding: 8px 8px 18px;
    border-bottom: 1px solid var(--border-color);
}

.workspace {
    min-width: 0;
    display: flex;
    flex-direction: column;
}

.app-main.app-container {
    width: 100%;
    max-width: 1500px !important;
    padding: 26px clamp(18px, 3vw, 42px) 46px !important;
    margin: 0 auto;
}

.topbar.app-header {
    position: sticky;
    top: 0;
    z-index: 11;
    display: flex !important;
    align-items: center !important;
    justify-content: space-between !important;
    gap: var(--space-md);
    padding: 16px clamp(18px, 3vw, 42px) !important;
    margin: 0 !important;
    border-bottom: 1px solid var(--border-color) !important;
    background: rgba(7, 10, 18, 0.72);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
}
[data-theme="light"] .topbar.app-header { background: rgba(245, 247, 251, 0.78); }

.topbar-kicker {
    color: var(--text-muted);
    font-size: .72rem;
    font-weight: 800;
    letter-spacing: .12em;
    text-transform: uppercase;
}
.topbar-title {
    color: var(--text-primary);
    font-size: 1.1rem;
    font-weight: 800;
    letter-spacing: -.02em;
}

.header-nav.side-nav {
    display: flex !important;
    flex: 1 1 auto;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: 6px;
    overflow-y: auto;
    width: auto !important;
    max-width: none !important;
    padding: 0 !important;
    border: 0 !important;
    border-radius: 0 !important;
    background: transparent !important;
    box-shadow: none !important;
}

.side-nav .nav-link {
    display: flex !important;
    width: 100%;
    justify-content: flex-start;
    gap: 10px;
    padding: 11px 13px !important;
    border-radius: var(--radius-md) !important;
    color: var(--text-secondary);
    font-size: .92rem !important;
    line-height: 1.25;
    border: 1px solid transparent;
}
.side-nav .nav-link:hover {
    color: var(--text-primary);
    background: rgba(148, 163, 184, 0.08);
    border-color: var(--border-color);
    transform: translateX(2px);
}
.side-nav .nav-link.active {
    color: #fff;
    background: var(--accent-gradient);
    border-color: rgba(255,255,255,.14);
    box-shadow: 0 14px 30px rgba(37, 99, 235, 0.22);
}

.sidebar-footer {
    display: grid;
    gap: 10px;
    padding-top: var(--space-md);
    border-top: 1px solid var(--border-color);
}
.user-chip {
    display: flex;
    gap: 10px;
    align-items: center;
    padding: 10px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    background: rgba(148, 163, 184, 0.07);
}

.mobile-nav { display: none !important; }
.desktop-only { display: inline-flex; }
.w-full { width: 100%; }

.guest-container {
    max-width: min(1180px, 94vw) !important;
    padding-top: 24px !important;
}
.guest-header {
    display: flex !important;
    justify-content: space-between !important;
    margin-bottom: var(--space-xl) !important;
}

.card,
.client-item,
.connection-card,
.protocol-card,
.server-card,
.client-card,
.billing-kpi,
.plans-table,
.login-card {
    background: var(--bg-card) !important;
    border: 1px solid var(--border-color) !important;
    box-shadow: var(--shadow-card) !important;
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
}
.card-hover:hover,
.server-card:hover,
.protocol-card:hover,
.client-card:hover,
.client-item:hover,
.connection-card:hover {
    border-color: var(--border-hover) !important;
    background: var(--bg-card-hover) !important;
    transform: translateY(-2px);
}

.section-title {
    font-size: clamp(1.35rem, 1.6vw, 2rem) !important;
    letter-spacing: -.035em;
    margin-bottom: 18px !important;
}
.card-title,
.connection-title,
.client-name,
.server-name,
.protocol-name {
    letter-spacing: -.02em;
}

.btn {
    border-radius: 12px !important;
    min-height: 38px;
    font-weight: 750 !important;
}
.btn-primary {
    background: var(--accent-gradient) !important;
    box-shadow: 0 14px 34px var(--accent-glow) !important;
}
.btn-secondary {
    background: rgba(148, 163, 184, 0.08) !important;
    border: 1px solid var(--border-color) !important;
}
.btn-secondary:hover { background: rgba(148, 163, 184, 0.14) !important; }
.btn-danger { border-color: var(--danger-border) !important; }
.btn-lg { padding: 13px 22px; font-size: .98rem; }

.form-input,
.form-select,
.form-textarea {
    border-radius: 12px !important;
    background: var(--bg-input) !important;
    min-height: 42px;
}
.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    border-color: var(--border-focus) !important;
    box-shadow: 0 0 0 4px var(--accent-glow) !important;
}
.form-label { color: var(--text-secondary) !important; font-weight: 750 !important; }

.badge {
    border-radius: 999px !important;
    padding: 4px 9px !important;
    line-height: 1;
}

.server-grid,
.protocol-cards,
.billing-grid {
    gap: clamp(14px, 2vw, 22px) !important;
}

.modal-backdrop {
    background: var(--bg-modal) !important;
    backdrop-filter: blur(18px) saturate(1.2) !important;
}
.modal {
    border-radius: 24px !important;
    border: 1px solid var(--border-color) !important;
    box-shadow: var(--shadow-lg) !important;
}

.toast-container { top: 18px !important; right: 18px !important; }
.toast {
    background: var(--bg-card) !important;
    border: 1px solid var(--border-color) !important;
    color: var(--text-primary) !important;
    backdrop-filter: blur(16px);
}
.toast-success { border-color: var(--success-border) !important; }
.toast-error { border-color: var(--danger-border) !important; }
.toast-info { border-color: rgba(59, 130, 246, 0.25) !important; }

.config-text,
.vpn-link-box,
.log-output {
    background: rgba(2, 6, 23, 0.52) !important;
    border-color: var(--border-color) !important;
}
[data-theme="light"] .config-text,
[data-theme="light"] .vpn-link-box,
[data-theme="light"] .log-output { background: rgba(241, 245, 249, 0.92) !important; }

.tabs,
.config-tabs {
    background: rgba(148, 163, 184, 0.10) !important;
    border: 1px solid var(--border-color);
}
.tab.active,
.config-tab.active {
    background: var(--bg-card-hover) !important;
}

.stat-pill,
.empty-mini {
    background: rgba(148, 163, 184, 0.08) !important;
    border-color: var(--border-color) !important;
}

.client-actions { max-width: none !important; }

@media (max-width: 1180px) {
    .app-shell { grid-template-columns: 1fr; }
    .sidebar { display: none; }
    .mobile-nav {
        position: sticky;
        top: 68px;
        z-index: 10;
        display: flex !important;
        flex-wrap: nowrap !important;
        gap: 6px !important;
        overflow-x: auto !important;
        padding: 8px 18px !important;
        border: 0 !important;
        border-bottom: 1px solid var(--border-color) !important;
        border-radius: 0 !important;
        background: rgba(7,10,18,.76) !important;
        backdrop-filter: blur(18px);
    }
    [data-theme="light"] .mobile-nav { background: rgba(245,247,251,.82) !important; }
    .mobile-nav .nav-link {
        flex: 0 0 auto !important;
        padding: 8px 12px !important;
        border-radius: 999px !important;
    }
    .topbar.app-header { top: 0; }
}

@media (max-width: 768px) {
    .topbar.app-header {
        padding: 12px 14px !important;
    }
    .topbar-title { font-size: .98rem; }
    .desktop-only { display: none !important; }
    .app-main.app-container { padding: 18px 14px 34px !important; }
    .form-row { grid-template-columns: 1fr !important; }
    .modal { width: calc(100vw - 24px) !important; padding: 18px !important; }
    .toast-container { left: 12px !important; right: 12px !important; }
    .toast { max-width: none !important; }
    .client-item,
    .connection-top,
    .clients-header,
    .card-header {
        align-items: flex-start;
        flex-direction: column;
        gap: 10px;
    }
    .client-actions,
    .connection-actions,
    .server-actions,
    .billing-actions {
        width: 100%;
        justify-content: flex-start !important;
    }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
        scroll-behavior: auto !important;
        transition-duration: .01ms !important;
    }
}

/* ===== Users page: prevent stat pills text overlap ===== */
.client-card .client-stats {
    min-width: 0;
    grid-template-columns: minmax(90px, .7fr) minmax(220px, 1.45fr) minmax(110px, .85fr) !important;
}

.client-card .client-stats .stat-pill {
    display: block !important;
    min-width: 0;
    max-width: 100%;
    overflow: hidden;
    white-space: normal !important;
    font-family: inherit !important;
    padding: 9px 10px !important;
    border-radius: var(--radius-md) !important;
}

.client-card .client-stats .stat-label {
    display: block;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    line-height: 1.25;
}

.client-card .client-stats .stat-value {
    display: block;
    min-width: 0;
    max-width: 100%;
    overflow-wrap: anywhere;
    word-break: normal;
    white-space: normal;
    line-height: 1.35;
}

@media (max-width: 980px) {
    .client-card .client-stats {
        grid-template-columns: 1fr !important;
    }
}

/* =========================================================
   Smartphone adaptation layer — applied to every HTML page
   ========================================================= */
:root {
    --primary: var(--accent);
    --primary-hover: var(--accent-dark);
    --accent-hover: var(--accent-dark);
}

img, svg, canvas, video, iframe {
    max-width: 100%;
}

code,
pre,
.font-mono,
.server-host,
.server-meta-chip code,
.config-text,
.vpn-link-box,
.log-output {
    overflow-wrap: anywhere;
    word-break: break-word;
}

.table-scroll,
.table-responsive {
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

@media (max-width: 700px) {
    html {
        font-size: 15px;
        overflow-x: hidden;
    }

    body {
        width: 100%;
        min-width: 0;
        overflow-x: hidden;
        text-size-adjust: 100%;
        -webkit-text-size-adjust: 100%;
    }

    .app-shell,
    .workspace,
    .app-main,
    .app-container,
    main,
    section,
    .card,
    .server-card,
    .client-card,
    .connection-card,
    .protocol-card,
    .protocol-card-new,
    .management-card,
    .connections-panel,
    .billing-grid,
    .billing-kpi-grid {
        min-width: 0 !important;
        max-width: 100% !important;
    }

    .app-shell {
        display: block !important;
        overflow-x: clip;
    }

    .sidebar {
        display: none !important;
    }

    .topbar.app-header {
        min-height: 60px;
        padding: calc(10px + env(safe-area-inset-top)) 12px 10px !important;
        gap: 10px !important;
    }

    .topbar.app-header > div:first-child {
        min-width: 0;
        flex: 1 1 auto;
    }

    .topbar-kicker {
        font-size: .62rem !important;
        letter-spacing: .10em !important;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    .topbar-title {
        font-size: .98rem !important;
        max-width: calc(100vw - 126px);
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    .nav-user {
        flex: 0 0 auto;
        gap: 8px !important;
        margin-left: 0 !important;
        padding-left: 0 !important;
        border-left: 0 !important;
        padding-top: 0 !important;
        border-top: 0 !important;
    }

    .theme-toggle {
        width: 40px;
        height: 40px;
        min-width: 40px;
        min-height: 40px;
    }

    .mobile-nav {
        top: 60px !important;
        display: flex !important;
        align-items: center !important;
        justify-content: flex-start !important;
        width: 100%;
        max-width: 100vw;
        overflow-x: auto !important;
        overflow-y: hidden !important;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
        scroll-snap-type: x proximity;
        padding: 8px 12px !important;
        gap: 7px !important;
    }

    .mobile-nav::-webkit-scrollbar {
        display: none;
    }

    .mobile-nav .nav-link {
        flex: 0 0 auto !important;
        min-height: 38px;
        padding: 8px 12px !important;
        border-radius: 999px !important;
        font-size: .83rem !important;
        scroll-snap-align: start;
    }

    .app-main.app-container {
        width: 100% !important;
        padding: 16px 12px calc(76px + env(safe-area-inset-bottom)) !important;
    }

    .guest-container {
        width: 100% !important;
        max-width: 100% !important;
        padding: 16px 12px calc(32px + env(safe-area-inset-bottom)) !important;
    }

    .guest-header {
        gap: 12px !important;
        align-items: center !important;
    }

    .app-logo {
        min-width: 0;
    }

    .logo-icon {
        width: 40px;
        height: 40px;
        font-size: 20px;
        flex: 0 0 auto;
    }

    .logo-text {
        font-size: 1.05rem !important;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        max-width: calc(100vw - 146px);
    }

    .logo-subtitle {
        font-size: .66rem !important;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        max-width: calc(100vw - 146px);
    }

    .section-title {
        width: 100%;
        font-size: clamp(1.28rem, 7vw, 1.72rem) !important;
        line-height: 1.15 !important;
        gap: 10px !important;
        overflow-wrap: anywhere;
    }

    section > .flex.items-center.justify-between,
    .clients-header,
    .card-header,
    .section-headline,
    .connections-toolbar,
    .connection-top {
        align-items: stretch !important;
        flex-direction: column !important;
        gap: 12px !important;
    }

    section > .flex.items-center.justify-between > .btn,
    section > .flex.items-center.justify-between > div,
    .billing-toolbar,
    .billing-toolbar .btn,
    .users-toolbar > .btn,
    .connections-tools,
    .connection-search,
    .clients-header .btn,
    .card-header .btn {
        width: 100% !important;
    }

    .card,
    .server-card,
    .client-card,
    .connection-card,
    .protocol-card,
    .protocol-card-new,
    .management-card,
    .billing-kpi,
    .plans-table,
    .login-card {
        border-radius: 18px !important;
    }

    .card,
    .server-card,
    .client-card,
    .connection-card,
    .protocol-card,
    .protocol-card-new,
    .management-card {
        padding: 15px !important;
    }

    .server-grid,
    .protocol-cards,
    .management-grid,
    .billing-grid,
    .billing-kpi-grid,
    .client-stats,
    .protocol-info,
    .protocol-info-new,
    .form-row,
    .users-toolbar,
    .server-metrics {
        grid-template-columns: 1fr !important;
    }

    .grid[style*="grid-template-columns"],
    div[style*="grid-template-columns"] {
        grid-template-columns: 1fr !important;
    }

    .server-card .server-meta {
        gap: 12px !important;
        align-items: flex-start !important;
    }

    .server-icon,
    .client-avatar,
    .server-avatar,
    .protocol-icon,
    .protocol-icon-new,
    .management-icon {
        flex: 0 0 auto;
    }

    .server-card .server-name,
    .client-name,
    .connection-title,
    .protocol-name,
    .protocol-name-new {
        white-space: normal !important;
        overflow: visible !important;
        text-overflow: clip !important;
    }

    .server-card .server-host,
    .client-meta,
    .connection-meta,
    .server-meta {
        min-width: 0;
        overflow-wrap: anywhere;
        word-break: break-word;
    }

    .server-card .server-protocols,
    .filter-row,
    .quick-buttons,
    .connection-meta,
    .server-meta {
        gap: 7px !important;
    }

    .server-card .server-actions {
        display: grid !important;
        grid-template-columns: minmax(0, 1fr) 44px 44px;
        gap: 8px !important;
        width: 100%;
        margin-top: 14px !important;
    }

    .server-card .server-actions .btn {
        min-height: 44px;
    }

    .server-hero-inner {
        padding: 16px !important;
    }

    .server-main-title {
        gap: 12px !important;
    }

    .server-hero .server-actions,
    .protocol-card-footer,
    .modal-footer,
    .config-actions,
    .connection-actions,
    .client-actions,
    .billing-actions {
        display: grid !important;
        grid-template-columns: 1fr !important;
        width: 100% !important;
        justify-content: stretch !important;
        margin-left: 0 !important;
    }

    .client-card .client-actions {
        grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
    }

    .client-card .client-actions .btn,
    .connection-actions .btn,
    .protocol-card-footer .btn,
    .modal-footer .btn,
    .config-actions .btn,
    .server-hero .server-actions .btn,
    .billing-actions .btn {
        width: 100% !important;
        min-width: 0 !important;
    }

    .btn,
    .form-input,
    .form-select,
    .form-textarea,
    .filter-chip,
    .tab,
    .config-tab,
    .server-tab {
        min-height: 44px;
    }

    .form-input,
    .form-select,
    .form-textarea,
    input,
    select,
    textarea {
        font-size: 16px !important;
    }

    .form-label {
        font-size: .78rem !important;
        line-height: 1.35;
    }

    .tabs,
    .config-tabs,
    .server-tabs,
    .filter-row,
    .quick-buttons {
        overflow-x: auto !important;
        flex-wrap: nowrap !important;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
    }

    .tabs::-webkit-scrollbar,
    .config-tabs::-webkit-scrollbar,
    .server-tabs::-webkit-scrollbar,
    .filter-row::-webkit-scrollbar,
    .quick-buttons::-webkit-scrollbar {
        display: none;
    }

    .tab,
    .config-tab,
    .server-tab,
    .filter-chip,
    .quick-buttons .btn {
        flex: 0 0 auto !important;
        white-space: nowrap !important;
    }

    .modal-backdrop {
        align-items: flex-end !important;
        justify-content: center !important;
        padding: 10px !important;
    }

    .modal {
        width: 100% !important;
        max-width: 100% !important;
        max-height: calc(100dvh - 20px) !important;
        padding: 16px !important;
        border-radius: 22px 22px 16px 16px !important;
    }

    .modal-header {
        gap: 12px;
        margin-bottom: 14px !important;
    }

    .modal-title {
        min-width: 0;
        overflow-wrap: anywhere;
        line-height: 1.2;
    }

    .modal-close {
        width: 40px;
        height: 40px;
        flex: 0 0 auto;
    }

    table {
        display: block;
        width: 100% !important;
        max-width: 100%;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        white-space: nowrap;
        border-spacing: 0;
    }

    th,
    td {
        padding: 9px 10px !important;
    }

    .plans-table,
    .orders-table {
        min-width: 720px;
    }

    .clients-list,
    #usersGrid,
    #ordersTable,
    #backupsList,
    #tablesList {
        min-width: 0;
        max-width: 100%;
    }

    .client-item {
        align-items: stretch !important;
        flex-direction: column !important;
        gap: 12px !important;
        padding: 14px !important;
    }

    .client-info,
    .client-main {
        width: 100%;
        min-width: 0;
        align-items: flex-start !important;
    }

    .client-info > div,
    .client-main > div:last-child {
        min-width: 0;
        flex: 1 1 auto;
    }

    .client-actions:not(.client-card .client-actions) {
        grid-template-columns: 1fr !important;
    }

    .btn-icon {
        width: 44px !important;
        height: 44px !important;
        min-width: 44px !important;
        min-height: 44px !important;
    }

    .client-card .client-actions .btn-icon,
    .server-hero .server-actions .btn-icon,
    .billing-actions .btn-icon {
        width: 100% !important;
    }

    .config-text,
    .vpn-link-box,
    .log-output {
        max-height: 46dvh !important;
        font-size: .76rem !important;
        line-height: 1.65 !important;
    }

    .qr-container {
        padding: 14px !important;
    }

    #qrCode,
    #qrCode canvas,
    .qr-container canvas,
    .qr-container img {
        max-width: min(100%, 280px) !important;
        height: auto !important;
    }

    .empty-state {
        padding: 36px 14px !important;
    }

    .empty-state .empty-icon {
        font-size: 2.7rem !important;
    }

    .toast-container {
        top: calc(10px + env(safe-area-inset-top)) !important;
        left: 10px !important;
        right: 10px !important;
    }

    .toast {
        width: 100%;
        max-width: none !important;
        padding: 12px 14px !important;
    }

    .login-wrapper {
        min-height: 100dvh !important;
        padding: calc(72px + env(safe-area-inset-top)) 12px 18px !important;
        align-items: flex-start !important;
    }

    .login-card {
        width: 100% !important;
        max-width: 420px !important;
        margin: 0 auto !important;
    }

    .login-logo {
        margin-bottom: 18px !important;
    }

    .login-logo .logo-icon {
        width: 60px !important;
        height: 60px !important;
        font-size: 1.65rem !important;
    }

    #langToggle,
    #themeToggle {
        top: calc(14px + env(safe-area-inset-top)) !important;
    }
}

@media (max-width: 420px) {
    .mobile-nav .nav-link {
        padding: 8px 10px !important;
        font-size: .8rem !important;
    }

    .client-card .client-actions {
        grid-template-columns: 1fr !important;
    }

    .server-card .server-actions {
        grid-template-columns: 1fr 44px 44px !important;
    }

    .badge {
        font-size: .66rem !important;
        padding: 4px 8px !important;
    }

    .card,
    .server-card,
    .client-card,
    .connection-card,
    .protocol-card,
    .protocol-card-new,
    .management-card {
        padding: 13px !important;
    }
}

@media (max-width: 700px) {
    #connProtoSelect,
    .connections-tools .btn,
    .connections-tools .form-select,
    .connections-tools .form-input {
        width: 100% !important;
        min-width: 0 !important;
    }

    .card[style*="max-width"],
    .modal[style*="max-width"] {
        max-width: 100% !important;
    }

    .card[style*="margin: 2rem auto"] {
        margin: 0 auto !important;
    }
}