/* ──────────────────────────────────────────────
   Velocity Design System — site.css
   ────────────────────────────────────────────── */

/* Font imports */
@import url('https://fonts.googleapis.com/css2?family=Figtree:wght@400;500;600&family=Plus+Jakarta+Sans:wght@400;500;600;700&family=Inter:wght@400;500;600;700&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Material+Symbols+Outlined:wght,FILL@100..700,0..1&display=swap');

:root {
    /* Color Variables */
    --bs-primary: #4F46E5;
    --bs-primary-rgb: 79, 70, 229;
    --velocity-bg-light: #F8FAFC;
    --velocity-surface-light: #FFFFFF;
    --velocity-text-light: #0F172A;
    --velocity-muted-light: #64748B;
    --velocity-border-light: #E2E8F0;
    --velocity-accent: #10B981;

    /* Font Variables */
    --font-display: 'Plus Jakarta Sans', sans-serif;
    --font-body: 'Figtree', sans-serif;
    --font-auth-body: 'Inter', sans-serif;

    /* Shadows & Effects */
    --shadow-soft: 0 4px 20px rgba(15, 23, 42, 0.03);
    --shadow-hover: 0 10px 25px rgba(15, 23, 42, 0.08);
    --velocity-glass-bg: rgba(255, 255, 255, 0.85);
    --velocity-surface-hover: #f1f5f9;
    --velocity-hover: #f1f5f9;
}

[data-theme="dark"] {
    --velocity-bg-light: #0B1120;
    --velocity-surface-light: #1E293B;
    --velocity-text-light: #F8FAFC;
    --velocity-muted-light: #94A3B8;
    --velocity-border-light: #334155;
    
    --shadow-soft: 0 4px 20px rgba(0, 0, 0, 0.3);
    --shadow-hover: 0 10px 25px rgba(0, 0, 0, 0.5);
    --velocity-glass-bg: rgba(30, 41, 59, 0.85);
    
    color-scheme: dark;
    --velocity-surface-hover: rgba(51, 65, 85, 0.45);
    --velocity-hover: rgba(51, 65, 85, 0.55);
}

[data-theme="dark"] .bg-white { background-color: var(--velocity-surface-light) !important; }
[data-theme="dark"] .bg-light { background-color: rgba(255,255,255,0.05) !important; }
[data-theme="dark"] .text-dark { color: var(--velocity-text-light) !important; }
[data-theme="dark"] .text-muted { color: var(--velocity-muted-light) !important; }
[data-theme="dark"] .border { border-color: var(--velocity-border-light) !important; }
[data-theme="dark"] .border-bottom { border-color: var(--velocity-border-light) !important; }
[data-theme="dark"] .border-end { border-color: var(--velocity-border-light) !important; }
[data-theme="dark"] .border-start { border-color: var(--velocity-border-light) !important; }
[data-theme="dark"] .btn-light { background-color: #334155 !important; border-color: #475569 !important; color: #F8FAFC !important; }
[data-theme="dark"] .btn-outline-secondary { border-color: #475569 !important; color: #94A3B8 !important; }
[data-theme="dark"] .form-control, [data-theme="dark"] .form-select { background-color: var(--velocity-bg-light) !important; border-color: var(--velocity-border-light) !important; color: var(--velocity-text-light) !important; }
[data-theme="dark"] .bg-success-subtle { background-color: rgba(16, 185, 129, 0.2) !important; }
[data-theme="dark"] .bg-primary-subtle { background-color: rgba(79, 70, 229, 0.2) !important; }
[data-theme="dark"] .bg-warning-subtle { background-color: rgba(245, 158, 11, 0.2) !important; }
[data-theme="dark"] .bg-danger-subtle { background-color: rgba(239, 68, 68, 0.2) !important; }
[data-theme="dark"] .bg-info-subtle { background-color: rgba(14, 165, 233, 0.2) !important; }

/* Accessible Validation Text Colors for Dark Mode (Min 4.5:1 Contrast) */
[data-theme="dark"] .text-success { color: #34d399 !important; }
[data-theme="dark"] .text-danger { color: #f87171 !important; }
[data-theme="dark"] .text-warning { color: #fbbf24 !important; }
[data-theme="dark"] .offcanvas { background-color: var(--velocity-glass-bg) !important; backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); }
[data-theme="dark"] .offcanvas-body { background-color: var(--velocity-bg-light) !important; }

/* Auth Layout dark mode overrides */
[data-theme="dark"] .input-auth-field { background-color: rgba(255,255,255,0.05); }
[data-theme="dark"] .input-auth-field:focus-within { background-color: var(--velocity-bg-light); border-color: var(--bs-primary); }
[data-theme="dark"] .auth-right-panel { background-color: var(--velocity-bg-light) !important; border-left: 1px solid var(--velocity-border-light); }
[data-theme="dark"] .auth-social-btn { background-color: var(--velocity-surface-light) !important; border-color: var(--velocity-border-light) !important; color: var(--velocity-text-light); }

/* Dashboard Chart Widget Adjustments for Dark mode */
[data-theme="dark"] .card { background-color: var(--velocity-surface-light) !important; border-color: var(--velocity-border-light) !important; }

/* ── Base ─────────────────────────────────────── */
body {
    font-family: var(--font-body);
    background-color: var(--velocity-bg-light);
    color: var(--velocity-text-light);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6, .font-display {
    font-family: var(--font-display);
}

/* ── Color Utilities ──────────────────────────── */
.bg-surface-light { background-color: var(--velocity-surface-light); }
.bg-background-light { background-color: var(--velocity-bg-light); }
.text-text-light { color: var(--velocity-text-light); }
.text-muted-light { color: var(--velocity-muted-light); }
.border-border-light { border-color: var(--velocity-border-light) !important; }

/* ── Shadow Utilities ─────────────────────────── */
.shadow-soft { box-shadow: var(--shadow-soft); }
.shadow-hover:hover { box-shadow: var(--shadow-hover) !important; }
.shadow-xs { box-shadow: 0 1px 2px 0 rgb(0 0 0 / 0.05); }

/* ── Typography Utilities ─────────────────────── */
.extra-small { font-size: 0.75rem; }
.tracking-wide { letter-spacing: 0.025em; }
.tracking-wider { letter-spacing: 0.05em; }

/* ── Focus Rings (Accessibility) ─────────────── */
:focus-visible {
    outline: 2px solid var(--bs-primary);
    outline-offset: 2px;
    border-radius: 4px;
}
:focus:not(:focus-visible) {
    outline: none;
}

/* ── Skeleton Loading ────────────────────────── */
.skeleton-line, .skeleton-circle, .skeleton-block {
    background: linear-gradient(90deg, var(--velocity-bg-light) 25%, rgba(128,128,128,0.08) 50%, var(--velocity-bg-light) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: 6px;
}
.skeleton-line { height: 12px; width: 100%; }
.skeleton-line.w-75 { width: 75%; }
.skeleton-line.w-50 { width: 50%; }
.skeleton-line.w-25 { width: 25%; }
.skeleton-circle { border-radius: 50%; }
.skeleton-block { min-height: 60px; }
@keyframes shimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* ── UI Components & Glassmorphism ────────────── */
.border-dashed { border-style: dashed !important; }
.cursor-pointer { cursor: pointer; }
.transition-all { transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1); }
.transition-colors { transition: color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease; }

.glass-panel {
    background-color: var(--velocity-glass-bg) !important;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}
.btn {
    transition: all 0.2s ease;
}
.btn.active-scale:active, .btn:active {
    transform: scale(0.96);
}
.task-card {
    transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}
.task-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover) !important;
}

/* ── Animations ───────────────────────────────── */
.animate-fade-up {
    animation: fadeUp 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
    opacity: 0;
    transform: translateY(15px);
}
.delay-100 { animation-delay: 100ms; }
.delay-200 { animation-delay: 200ms; }
.delay-300 { animation-delay: 300ms; }

@keyframes fadeUp {
    0% { opacity: 0; transform: translateY(15px); }
    100% { opacity: 1; transform: translateY(0); }
}

/* ── Sidebar ──────────────────────────────────── */
.sidebar-width {
    width: 250px;
    min-width: 250px;
}

/* Mobile: sidebar is off-canvas */
@media (max-width: 767.98px) {
    .sidebar-width {
        position: fixed;
        left: 0;
        top: 0;
        bottom: 0;
        z-index: 1050;
        transform: translateX(-100%);
        transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        box-shadow: none;
    }
    .sidebar-width.sidebar-open {
        transform: translateX(0);
        box-shadow: 4px 0 24px rgba(0, 0, 0, 0.15);
    }
    .sidebar-backdrop {
        position: fixed;
        inset: 0;
        background-color: rgba(0, 0, 0, 0.4);
        z-index: 1040;
        opacity: 0;
        pointer-events: none;
        transition: opacity 0.3s ease;
    }
    .sidebar-backdrop.active {
        opacity: 1;
        pointer-events: auto;
    }
}

@media (min-width: 768px) {
    .sidebar-backdrop { display: none !important; }
}

/* ── Scrollbar ────────────────────────────────── */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(148, 163, 184, 0.4); border-radius: 10px; }
::-webkit-scrollbar-thumb:hover { background: rgba(148, 163, 184, 0.6); }

[data-theme="dark"] ::-webkit-scrollbar-thumb { background: rgba(71, 85, 105, 0.5); }
[data-theme="dark"] ::-webkit-scrollbar-thumb:hover { background: rgba(71, 85, 105, 0.8); }

/* ── Nav Links ────────────────────────────────── */
.nav-link-custom {
    color: var(--velocity-muted-light);
    transition: all 0.2s ease;
}
.nav-link-custom:hover, .nav-link-custom.active {
    background-color: var(--velocity-bg-light);
    color: var(--velocity-text-light);
}
.nav-link-custom.active {
    background-color: rgba(79, 70, 229, 0.1);
    color: var(--bs-primary);
}

/* ── Status Dots ──────────────────────────────── */
.status-dot { width: 8px; height: 8px; border-radius: 50%; display: inline-block; }
.status-dot.blue { background-color: #3b82f6; }
.status-dot.purple { background-color: #a855f7; }
.status-dot.green { background-color: var(--velocity-accent); }
.status-dot.slate { background-color: #94a3b8; }
.status-dot.primary { background-color: var(--bs-primary); }

/* ── Material Icons ───────────────────────────── */
.material-symbols-outlined { font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24; }

/* ── Form Overrides ───────────────────────────── */
.form-control:focus {
    border-color: var(--bs-primary);
    box-shadow: 0 0 0 0.25rem rgba(79, 70, 229, 0.25);
}

/* ── Auth Pages ───────────────────────────────── */
.auth-body { font-family: var(--font-auth-body); background-color: #f8f9fa; }
.left-bg-gradient { background: #5b50ed; }
.glass-shape-1 { position: absolute; top: -30%; left: -10%; width: 90%; height: 90%; border-radius: 50%; background: radial-gradient(circle, rgba(255,255,255,0.15) 0%, rgba(255,255,255,0) 70%); pointer-events: none; }
.glass-shape-2 { position: absolute; bottom: -20%; right: -10%; width: 70%; height: 70%; border-radius: 50%; background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0) 70%); pointer-events: none; }
.input-auth-field { background-color: #f3f4f6; border: 1px solid transparent; transition: all 0.2s ease-in-out; }
.input-auth-field:focus-within { border-color: var(--bs-primary); background-color: #ffffff; box-shadow: 0 0 0 2px rgba(var(--bs-primary-rgb), 0.2); }

.velocity-gradient-header {
    background: linear-gradient(135deg, var(--bs-primary), #8b5cf6);
}

.velocity-gradient-avatar {
    background: linear-gradient(135deg, var(--bs-primary), #8b5cf6);
}

/* ── Notification Items ───────────────────────── */
.notif-item {
    transition: background-color 0.2s ease;
    cursor: pointer;
    border-bottom: 1px solid var(--velocity-border-light);
}
.notif-item:hover { background-color: var(--velocity-bg-light); }
.notif-item:last-child { border-bottom: none; }
.notif-new { animation: notifSlideIn 0.3s ease; }
@keyframes notifSlideIn {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ── Task Row Hover ───────────────────────────── */
.task-row { transition: background-color 0.15s ease; }
.task-row:hover { background-color: var(--velocity-bg-light) !important; }
.task-row:hover .fw-bold,
.task-row:hover .fw-medium { color: var(--bs-primary) !important; }

/* ── Comment Cards ────────────────────────────── */
.comment-card { transition: background-color 0.2s ease; }
.comment-card:hover { background-color: var(--velocity-bg-light) !important; }
.comment-card .comment-actions { opacity: 0; transition: opacity 0.2s ease; }
.comment-card:hover .comment-actions { opacity: 1; }
.comment-highlight { animation: highlightFade 2s ease-out; }
@keyframes highlightFade {
    0% { background-color: rgba(79, 70, 229, 0.08); }
    100% { background-color: transparent; }
}

/* ── Command Palette (Cmd+K) ──────────────────── */
.cmd-palette-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.5);
    backdrop-filter: blur(4px);
    z-index: 9998;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
}
.cmd-palette-backdrop.active {
    opacity: 1;
    pointer-events: auto;
}
.cmd-palette {
    position: fixed;
    top: 20%;
    left: 50%;
    transform: translateX(-50%) scale(0.96);
    width: 560px;
    max-width: 90vw;
    background: var(--velocity-surface-light);
    border-radius: 16px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    z-index: 9999;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.15s ease, transform 0.15s ease;
    overflow: hidden;
}
.cmd-palette.active {
    opacity: 1;
    pointer-events: auto;
    transform: translateX(-50%) scale(1);
}
.cmd-palette-input {
    width: 100%;
    border: none;
    outline: none;
    padding: 16px 20px;
    font-size: 1rem;
    font-family: var(--font-body);
    background: transparent;
    color: var(--velocity-text-light);
    border-bottom: 1px solid var(--velocity-border-light);
}
.cmd-palette-input::placeholder { color: var(--velocity-muted-light); }
.cmd-palette-results {
    max-height: 320px;
    overflow-y: auto;
    padding: 8px;
}
.cmd-palette-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    border-radius: 8px;
    cursor: pointer;
    transition: background-color 0.1s ease;
    text-decoration: none;
    color: var(--velocity-text-light);
}
.cmd-palette-item:hover,
.cmd-palette-item.selected {
    background-color: var(--bs-primary-subtle);
    color: var(--bs-primary);
}
.cmd-palette-item .material-symbols-outlined {
    font-size: 20px;
    color: var(--velocity-muted-light);
}
.cmd-palette-item:hover .material-symbols-outlined,
.cmd-palette-item.selected .material-symbols-outlined {
    color: var(--bs-primary);
}
.cmd-palette-footer {
    padding: 10px 20px;
    border-top: 1px solid var(--velocity-border-light);
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.75rem;
    color: var(--velocity-muted-light);
}
.cmd-palette-footer kbd {
    background: var(--velocity-bg-light);
    border: 1px solid var(--velocity-border-light);
    border-radius: 4px;
    padding: 2px 6px;
    font-size: 0.7rem;
    font-family: var(--font-body);
    color: var(--velocity-text-light);
}

/* ── Project Card Hover ───────────────────────── */
.project-card {
    transition: all 0.3s ease;
}
.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 24px -8px rgba(0, 0, 0, 0.15) !important;
    border-color: var(--bs-primary) !important;
}
.project-card:hover .project-hover-tag {
    transform: translateY(0) !important;
}
.project-card:hover h3 {
    color: var(--bs-primary) !important;
}

/* ── Auth Carousel ────────────────────────────── */
.carousel-content {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 0.5s ease, transform 0.5s ease;
    pointer-events: none;
}
.carousel-content.active {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
    position: relative;
}
.carousel-indicator {
    width: 32px;
    height: 4px;
    background-color: rgba(255, 255, 255, 0.4);
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s ease, width 0.3s ease;
}
.carousel-indicator.active {
    background-color: white;
    width: 48px;
}

/* ── Toast Notifications ─────────────────────── */
.velocity-toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 99999;
    display: flex;
    flex-direction: column;
    gap: 10px;
    pointer-events: none;
}
.velocity-toast {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 20px;
    border-radius: 12px;
    background: var(--velocity-surface-light);
    border: 1px solid var(--velocity-border-light);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
    font-family: var(--font-body);
    font-size: 0.875rem;
    color: var(--velocity-text-light);
    pointer-events: auto;
    animation: toastSlideIn 0.35s cubic-bezier(0.16, 1, 0.3, 1);
    max-width: 380px;
    min-width: 280px;
}
.velocity-toast.toast-exit {
    animation: toastSlideOut 0.25s ease forwards;
}
.velocity-toast .toast-icon {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}
.velocity-toast .toast-message {
    min-width: 0;
    flex: 1;
    word-break: break-word;
}
.velocity-toast .toast-icon .material-symbols-outlined { font-size: 14px; }
.velocity-toast.toast-success .toast-icon { background: rgba(16, 185, 129, 0.15); color: #10B981; }
.velocity-toast.toast-error .toast-icon { background: rgba(239, 68, 68, 0.15); color: #EF4444; }
.velocity-toast.toast-warning .toast-icon { background: rgba(245, 158, 11, 0.15); color: #F59E0B; }
.velocity-toast.toast-info .toast-icon { background: rgba(79, 70, 229, 0.15); color: #4F46E5; }
.velocity-toast .toast-close {
    margin-left: auto;
    background: none;
    border: none;
    color: var(--velocity-muted-light);
    cursor: pointer;
    padding: 0;
    font-size: 18px;
    line-height: 1;
    opacity: 0.5;
    transition: opacity 0.15s;
}
.velocity-toast .toast-close:hover { opacity: 1; }

@keyframes toastSlideIn {
    0% { opacity: 0; transform: translateX(30px); }
    100% { opacity: 1; transform: translateX(0); }
}
@keyframes toastSlideOut {
    0% { opacity: 1; transform: translateX(0); }
    100% { opacity: 0; transform: translateX(30px); }
}

/* ========================================================================= */
/* Phase 3: Tactile Navigational Micro-interactions */
/* ========================================================================= */
.task-row, .task-card, .btn, .nav-link-custom, .dropdown-item, .list-group-item-action {
    transition: transform 0.1s cubic-bezier(0.4, 0, 0.2, 1), background-color 0.15s ease, box-shadow 0.15s ease;
}

.task-row:active, .task-card:active, .btn:active, .nav-link-custom:active, .dropdown-item:active, .list-group-item-action:active {
    transform: scale(0.97) !important;
}

.task-row:hover {
    background-color: var(--velocity-surface-hover);
}
[data-theme="dark"] .task-row:hover {
    background-color: var(--velocity-hover);
}

/* Dashboard: quick-complete control (sibling of stretched link, not nested in <a>) */
.quick-done-btn.rounded-circle {
    border-color: var(--bs-primary) !important;
    transition: background-color 0.2s ease, color 0.2s ease;
}
.quick-done-btn.rounded-circle:hover {
    background-color: var(--bs-primary) !important;
}
.quick-done-btn.rounded-circle:hover .material-symbols-outlined {
    color: #fff !important;
}