/* ============================================================
   Gnoll - Dark Theme
   Premium dark UI with depth, glass, and micro-interactions
   ============================================================ */

/* ----- Design Tokens ----- */
:root,
[data-bs-theme="dark"] {
    --bs-body-bg: #09090b;
    --bs-body-color: #e4e4e7;
    --bs-border-color: rgba(255, 255, 255, 0.06);
    --bs-card-bg: rgba(255, 255, 255, 0.03);
    --bs-emphasis-color: #fafafa;
    --bs-link-color: #818cf8;
    --bs-link-hover-color: #a5b4fc;

    /* App tokens */
    --app-bg: #09090b;
    --app-sidebar: #0c0c0e;
    --app-card: rgba(255, 255, 255, 0.03);
    --app-surface: rgba(255, 255, 255, 0.05);
    --app-surface-hover: rgba(255, 255, 255, 0.08);
    --app-border: rgba(255, 255, 255, 0.06);
    --app-border-strong: rgba(255, 255, 255, 0.1);
    --app-text: #e4e4e7;
    --app-text-muted: #71717a;
    --app-accent: #818cf8;
    --app-accent-dim: rgba(129, 140, 248, 0.15);
    --app-accent-glow: rgba(129, 140, 248, 0.08);
    --app-transition: 150ms ease;
    --app-transition-slow: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --app-radius: 10px;
    --app-radius-sm: 6px;
    --app-radius-lg: 14px;

    /* Glow layers */
    --glow-sm: 0 0 0 1px rgba(255, 255, 255, 0.04);
    --glow-md: 0 2px 8px -2px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(255, 255, 255, 0.04);
    --glow-lg: 0 4px 24px -4px rgba(0, 0, 0, 0.6), 0 0 0 1px rgba(255, 255, 255, 0.06);
    --glow-accent: 0 0 20px -4px rgba(129, 140, 248, 0.3);
}

/* ----- Base Typography ----- */
html {
    font-size: 14px;
    position: relative;
    min-height: 100%;
}

@media (min-width: 768px) {
    html { font-size: 14.5px; }
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
        "Helvetica Neue", Arial, sans-serif;
    background-color: var(--app-bg);
    color: var(--app-text);
    margin-bottom: 0;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    letter-spacing: -0.01em;
    line-height: 1.6;
}

h1, h2, h3, h4, h5, h6, .h1, .h2, .h3, .h4, .h5, .h6 {
    letter-spacing: -0.025em;
    font-weight: 600;
    color: #fafafa;
}

code {
    background: var(--app-surface);
    padding: 0.15em 0.45em;
    border-radius: 5px;
    font-size: 0.85em;
    color: var(--app-accent);
    border: 1px solid var(--app-border);
}

::selection {
    background: rgba(129, 140, 248, 0.3);
    color: #fff;
}

/* ----- Focus Ring ----- */
.btn:focus-visible,
.form-control:focus-visible,
.form-check-input:focus-visible,
.form-select:focus-visible {
    outline: none;
    box-shadow: 0 0 0 2px var(--app-bg), 0 0 0 4px var(--app-accent);
}

/* ----- Sidebar Layout ----- */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: 250px;
    background: var(--app-sidebar);
    border-right: 1px solid var(--app-border);
    display: flex;
    flex-direction: column;
    z-index: 1040;
    overflow-y: auto;
    overflow-x: hidden;
    transition: transform 300ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* Subtle top-to-bottom gradient overlay on sidebar */
.sidebar::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg,
        rgba(129, 140, 248, 0.03) 0%,
        transparent 40%);
    pointer-events: none;
    z-index: 0;
}

.sidebar > * {
    position: relative;
    z-index: 1;
}

.sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.15rem 1rem 0.85rem;
    border-bottom: 1px solid var(--app-border);
    flex-shrink: 0;
}

.sidebar-brand {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    text-decoration: none;
    color: #ffffff;
    font-weight: 700;
    font-size: 1.05rem;
    letter-spacing: -0.03em;
}

.sidebar-brand:hover {
    color: #ffffff;
    text-decoration: none;
}

.sidebar-brand-icon {
    color: var(--app-accent);
    font-size: 1.3rem;
    line-height: 1;
    filter: drop-shadow(0 0 6px rgba(129, 140, 248, 0.4));
}

.sidebar-close {
    color: var(--app-text-muted);
    padding: 0.25rem;
    line-height: 1;
}

/* Sidebar navigation */
.sidebar-nav {
    flex: 1 1 auto;
    overflow-y: auto;
    padding: 0.5rem 0;
}

.sidebar-section {
    margin-bottom: 0.25rem;
}

.sidebar-section-header {
    font-size: 0.65rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--app-text-muted);
    padding: 0.85rem 1.25rem 0.35rem;
    user-select: none;
}

.sidebar .nav-link {
    color: var(--app-text-muted);
    padding: 0.4rem 0.85rem;
    border-radius: var(--app-radius-sm);
    margin: 1px 0.6rem;
    font-size: 0.85rem;
    font-weight: 450;
    display: flex;
    align-items: center;
    gap: 0.55rem;
    transition: all var(--app-transition);
    white-space: nowrap;
    position: relative;
}

.sidebar .nav-link i {
    font-size: 1rem;
    width: 1.25rem;
    text-align: center;
    flex-shrink: 0;
    opacity: 0.5;
    transition: opacity var(--app-transition), color var(--app-transition);
}

.sidebar .nav-link:hover {
    color: #fafafa;
    background-color: var(--app-surface);
}

.sidebar .nav-link:hover i {
    opacity: 0.9;
}

.sidebar .nav-link.active {
    color: #fafafa;
    background-color: var(--app-surface-hover);
}

/* Active indicator bar */
.sidebar .nav-link.active::before {
    content: '';
    position: absolute;
    left: -0.6rem;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 16px;
    border-radius: 0 3px 3px 0;
    background: var(--app-accent);
    box-shadow: 0 0 8px rgba(129, 140, 248, 0.5);
}

.sidebar .nav-link.active i {
    opacity: 1;
    color: var(--app-accent);
}

/* Sidebar footer */
.sidebar-footer {
    flex-shrink: 0;
    padding: 0.75rem 1rem;
    border-top: 1px solid var(--app-border);
}

.sidebar-footer .nav-link,
.sidebar-footer a {
    color: var(--app-text-muted);
    font-size: 0.8rem;
}

.sidebar-footer .nav-link:hover,
.sidebar-footer a:hover {
    color: var(--app-text);
}

/* Main content offset */
.main-content {
    margin-left: 250px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Mobile top bar */
.sidebar-topbar {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background-color: var(--app-sidebar);
    border-bottom: 1px solid var(--app-border);
    position: sticky;
    top: 0;
    z-index: 1030;
    backdrop-filter: blur(12px);
}

.sidebar-topbar-brand {
    color: #ffffff;
    font-weight: 700;
    font-size: 1rem;
    flex: 1;
    letter-spacing: -0.03em;
}

.sidebar-toggle {
    color: var(--app-text);
    padding: 0.25rem;
    line-height: 1;
}

/* Sidebar overlay */
.sidebar-overlay {
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    z-index: 1035;
    opacity: 0;
    visibility: hidden;
    transition: opacity 300ms ease, visibility 300ms ease;
}

.sidebar-overlay.show {
    opacity: 1;
    visibility: visible;
}

/* Responsive */
@media (max-width: 767.98px) {
    .sidebar {
        transform: translateX(-100%);
    }

    .sidebar.show {
        transform: translateX(0);
    }

    .main-content {
        margin-left: 0;
    }

    body.sidebar-open {
        overflow: hidden;
    }
}

.sidebar-topbar .nav-link {
    color: var(--app-text-muted);
    font-size: 0.8rem;
    padding: 0.25rem 0.5rem;
}

/* ----- Cards ----- */
.card {
    background: var(--app-card);
    border: 1px solid var(--app-border);
    border-radius: var(--app-radius);
    box-shadow: var(--glow-sm);
    transition: border-color var(--app-transition-slow),
                box-shadow var(--app-transition-slow),
                transform var(--app-transition-slow);
    backdrop-filter: blur(8px);
}

.card:hover {
    border-color: var(--app-border-strong);
    box-shadow: var(--glow-md);
}

.card-header {
    background-color: transparent;
    border-bottom: 1px solid var(--app-border);
    font-weight: 600;
    font-size: 0.9rem;
}

/* Stat cards - special treatment */
.card .fs-1 {
    font-weight: 700;
    letter-spacing: -0.04em;
    background: linear-gradient(135deg, #fafafa 0%, #a1a1aa 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* ----- Tables ----- */
.table {
    --bs-table-bg: transparent;
    --bs-table-color: var(--app-text);
    --bs-table-border-color: var(--app-border);
    --bs-table-striped-bg: rgba(255, 255, 255, 0.015);
    --bs-table-hover-bg: rgba(255, 255, 255, 0.03);
}

.table thead th {
    font-weight: 600;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--app-text-muted);
    border-bottom-width: 1px;
    padding: 0.75rem;
}

.table td {
    vertical-align: middle;
    padding: 0.6rem 0.75rem;
    font-size: 0.875rem;
}

.table tbody tr {
    transition: background-color var(--app-transition);
}

.table-responsive {
    border-radius: var(--app-radius);
    border: 1px solid var(--app-border);
    box-shadow: var(--glow-sm);
}

/* ----- Forms ----- */
.form-control,
.form-select {
    background-color: var(--app-surface);
    border: 1px solid var(--app-border);
    color: var(--app-text);
    border-radius: var(--app-radius-sm);
    transition: border-color var(--app-transition), box-shadow var(--app-transition);
    font-size: 0.875rem;
}

.form-control:focus,
.form-select:focus {
    background-color: var(--app-surface);
    border-color: var(--app-accent);
    color: var(--app-text);
    box-shadow: 0 0 0 3px var(--app-accent-dim), var(--glow-sm);
}

.form-control::placeholder {
    color: var(--app-text-muted);
    font-weight: 400;
}

.form-label {
    font-weight: 500;
    font-size: 0.8rem;
    color: var(--app-text-muted);
    margin-bottom: 0.35rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

/* ----- Buttons ----- */
.btn {
    border-radius: var(--app-radius-sm);
    font-weight: 500;
    font-size: 0.85rem;
    transition: all var(--app-transition);
    letter-spacing: -0.005em;
}

.btn-primary {
    --bs-btn-bg: #6366f1;
    --bs-btn-border-color: #6366f1;
    --bs-btn-hover-bg: #4f46e5;
    --bs-btn-hover-border-color: #4f46e5;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.btn-primary:hover {
    box-shadow: 0 2px 8px rgba(99, 102, 241, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.1);
    transform: translateY(-1px);
}

.btn-primary:active {
    transform: translateY(0);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.btn-outline-secondary {
    --bs-btn-color: var(--app-text-muted);
    --bs-btn-border-color: var(--app-border-strong);
    --bs-btn-hover-bg: var(--app-surface);
    --bs-btn-hover-color: var(--app-text);
    --bs-btn-hover-border-color: rgba(255, 255, 255, 0.15);
}

.btn-outline-danger {
    --bs-btn-hover-bg: rgba(239, 68, 68, 0.1);
}

/* Dropdown menus */
.dropdown-menu {
    background: rgba(24, 24, 27, 0.95);
    backdrop-filter: blur(16px);
    border: 1px solid var(--app-border-strong);
    border-radius: var(--app-radius);
    box-shadow: var(--glow-lg);
    padding: 0.35rem;
}

.dropdown-item {
    border-radius: var(--app-radius-sm);
    font-size: 0.85rem;
    padding: 0.4rem 0.75rem;
    color: var(--app-text);
    transition: all var(--app-transition);
}

.dropdown-item:hover,
.dropdown-item:focus {
    background-color: var(--app-surface-hover);
    color: #fafafa;
}

.dropdown-item.active,
.dropdown-item:active {
    background-color: var(--app-accent-dim);
    color: var(--app-accent);
}

.dropdown-divider {
    border-color: var(--app-border);
    margin: 0.25rem 0;
}

/* ----- Type Badges ----- */
.badge-type {
    font-size: 0.7rem;
    font-weight: 500;
    padding: 0.2em 0.6em;
    border-radius: 999px;
    letter-spacing: 0.01em;
    border: 1px solid transparent;
}

.badge-type-epic {
    background-color: rgba(168, 85, 247, 0.12);
    color: #c084fc;
    border-color: rgba(168, 85, 247, 0.2);
}

.badge-type-feature {
    background-color: rgba(59, 130, 246, 0.12);
    color: #60a5fa;
    border-color: rgba(59, 130, 246, 0.2);
}

.badge-type-bug {
    background-color: rgba(239, 68, 68, 0.12);
    color: #f87171;
    border-color: rgba(239, 68, 68, 0.2);
}

.badge-type-task {
    background-color: rgba(161, 161, 170, 0.1);
    color: #a1a1aa;
    border-color: rgba(161, 161, 170, 0.15);
}

.badge-type-chore {
    background-color: rgba(234, 179, 8, 0.12);
    color: #fbbf24;
    border-color: rgba(234, 179, 8, 0.2);
}

/* ----- Status Badges ----- */
.badge-status {
    font-size: 0.7rem;
    font-weight: 500;
    padding: 0.2em 0.6em;
    border-radius: 999px;
    letter-spacing: 0.01em;
    display: inline-flex;
    align-items: center;
    gap: 0.35em;
}

/* Dot indicator before status text */
.badge-status::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50%;
    flex-shrink: 0;
}

.badge-open {
    background-color: rgba(59, 130, 246, 0.1);
    color: #60a5fa;
}
.badge-open::before { background: #3b82f6; box-shadow: 0 0 6px #3b82f6; }

.badge-in-progress,
.badge-in_progress {
    background-color: rgba(234, 179, 8, 0.1);
    color: #fbbf24;
}
.badge-in-progress::before,
.badge-in_progress::before { background: #eab308; box-shadow: 0 0 6px #eab308; }

.badge-closed {
    background-color: rgba(34, 197, 94, 0.1);
    color: #4ade80;
}
.badge-closed::before { background: #22c55e; box-shadow: 0 0 6px #22c55e; }

.badge-deferred {
    background-color: rgba(161, 161, 170, 0.1);
    color: #a1a1aa;
}
.badge-deferred::before { background: #71717a; }

/* ----- Priority Badges ----- */
.badge-priority {
    font-size: 0.65rem;
    font-weight: 600;
    padding: 0.2em 0.5em;
    border-radius: 4px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    border: 1px solid transparent;
}

.badge-p0 {
    background-color: rgba(239, 68, 68, 0.12);
    color: #f87171;
    border-color: rgba(239, 68, 68, 0.25);
}

.badge-p1 {
    background-color: rgba(249, 115, 22, 0.12);
    color: #fb923c;
    border-color: rgba(249, 115, 22, 0.25);
}

.badge-p2 {
    background-color: rgba(234, 179, 8, 0.12);
    color: #fbbf24;
    border-color: rgba(234, 179, 8, 0.25);
}

.badge-p3 {
    background-color: rgba(59, 130, 246, 0.12);
    color: #60a5fa;
    border-color: rgba(59, 130, 246, 0.25);
}

.badge-p4 {
    background-color: rgba(161, 161, 170, 0.08);
    color: #a1a1aa;
    border-color: rgba(161, 161, 170, 0.15);
}

/* ----- Breadcrumbs ----- */
.breadcrumb {
    font-size: 0.85rem;
}

.breadcrumb-item a {
    color: var(--app-text-muted);
    text-decoration: none;
}

.breadcrumb-item a:hover {
    color: var(--app-accent);
}

.breadcrumb-item.active {
    color: var(--app-text-muted);
}

/* ----- Pagination ----- */
.page-link {
    background-color: transparent;
    border-color: var(--app-border);
    color: var(--app-text-muted);
    font-size: 0.85rem;
    border-radius: var(--app-radius-sm);
    transition: all var(--app-transition);
}

.page-link:hover {
    background-color: var(--app-surface);
    border-color: var(--app-border-strong);
    color: var(--app-text);
}

.page-item.active .page-link {
    background-color: var(--app-accent-dim);
    border-color: var(--app-accent);
    color: var(--app-accent);
}

/* ----- Footer ----- */
.footer {
    background-color: transparent;
    border-color: var(--app-border) !important;
    font-size: 0.8rem;
    color: var(--app-text-muted);
}

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

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

/* ----- Utility ----- */
.text-muted {
    color: var(--app-text-muted) !important;
}

.border-subtle {
    border-color: var(--app-border) !important;
}

.bg-surface {
    background-color: var(--app-surface) !important;
}

.bg-sidebar {
    background-color: var(--app-sidebar) !important;
}

/* ----- Real-time Update Animations ----- */
@keyframes gnoll-flash-in {
    0% {
        background-color: rgba(129, 140, 248, 0.15);
        box-shadow: inset 0 0 0 1px rgba(129, 140, 248, 0.3);
    }
    100% {
        background-color: transparent;
        box-shadow: inset 0 0 0 1px transparent;
    }
}

@keyframes gnoll-fade-out {
    0% {
        opacity: 1;
        max-height: 200px;
    }
    50% {
        opacity: 0.3;
        background-color: rgba(239, 68, 68, 0.08);
    }
    100% {
        opacity: 0;
        max-height: 0;
        padding-top: 0;
        padding-bottom: 0;
        margin-top: 0;
        margin-bottom: 0;
        overflow: hidden;
    }
}

.gnoll-flash {
    animation: gnoll-flash-in 1.2s ease-out;
}

.gnoll-fade-out {
    animation: gnoll-fade-out 0.8s ease-in forwards;
}

/* ----- Kanban Board ----- */
.kanban-board {
    display: flex;
    gap: 12px;
    overflow-x: auto;
    padding-bottom: 16px;
    min-height: 400px;
    align-items: flex-start;
}

.kanban-column {
    flex: 1 1 0;
    min-width: 240px;
    max-width: 350px;
    background: var(--app-card);
    border: 1px solid var(--app-border);
    border-radius: var(--app-radius);
    display: flex;
    flex-direction: column;
    box-shadow: var(--glow-sm);
}

.kanban-column-header {
    padding: 10px 12px;
    border-bottom: 1px solid var(--app-border);
    display: flex;
    align-items: center;
    gap: 6px;
    font-weight: 600;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--app-text-muted);
}

.kanban-column-body {
    padding: 8px;
    flex: 1;
    min-height: 60px;
    display: flex;
    flex-direction: column;
    gap: 6px;
    transition: background-color var(--app-transition);
}

.kanban-column-body.kanban-drop-target {
    background-color: var(--app-accent-glow);
    border-radius: 0 0 var(--app-radius) var(--app-radius);
}

.kanban-card {
    background: var(--app-bg);
    border: 1px solid var(--app-border);
    border-radius: 8px;
    padding: 10px 12px;
    cursor: grab;
    transition: border-color var(--app-transition),
                box-shadow var(--app-transition-slow),
                transform var(--app-transition),
                opacity var(--app-transition);
}

.kanban-card:hover {
    border-color: rgba(129, 140, 248, 0.3);
    box-shadow: var(--glow-accent);
    transform: translateY(-1px);
}

.kanban-card:active {
    cursor: grabbing;
    transform: scale(0.98);
}

.kanban-card-dragging {
    opacity: 0.35;
}

.kanban-card-title {
    font-size: 0.85rem;
    font-weight: 450;
    line-height: 1.35;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

/* Legacy swimlane classes */
.swimlane-header {
    padding: 4px 0;
    border-bottom: 1px solid var(--app-border);
}

.swimlane-card {
    background: var(--app-card);
    border: 1px solid var(--app-border);
    border-radius: var(--app-radius);
    width: 280px;
    transition: border-color var(--app-transition), box-shadow var(--app-transition-slow);
}

.swimlane-card:hover {
    border-color: rgba(129, 140, 248, 0.3);
    box-shadow: var(--glow-accent);
}

.swimlane-card-title {
    font-size: 0.9rem;
    line-height: 1.3;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

/* ----- Scrollbar (Webkit) ----- */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

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

::-webkit-scrollbar-thumb {
    background-color: rgba(255, 255, 255, 0.08);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background-color: rgba(255, 255, 255, 0.15);
}

/* Firefox scrollbar */
* {
    scrollbar-width: thin;
    scrollbar-color: rgba(255, 255, 255, 0.08) transparent;
}

/* ----- Empty State ----- */
.text-center.py-5 i[style*="font-size: 3rem"] {
    opacity: 0.3;
}

/* ----- Badge base ----- */
.badge {
    font-weight: 500;
    letter-spacing: 0.01em;
}

/* ----- Alerts / Toasts ----- */
.alert {
    border-radius: var(--app-radius);
    border: 1px solid var(--app-border);
    backdrop-filter: blur(8px);
}

/* ----- Modal ----- */
.modal-content {
    background: rgba(24, 24, 27, 0.95);
    backdrop-filter: blur(20px);
    border: 1px solid var(--app-border-strong);
    border-radius: var(--app-radius-lg);
    box-shadow: var(--glow-lg);
}

.modal-header {
    border-bottom-color: var(--app-border);
}

.modal-footer {
    border-top-color: var(--app-border);
}

/* ----- Tabs (nav-tabs) ----- */
.nav-tabs {
    border-bottom-color: var(--app-border);
}

.nav-tabs .nav-link {
    color: var(--app-text-muted);
    border: none;
    border-bottom: 2px solid transparent;
    border-radius: 0;
    padding: 0.5rem 1rem;
    font-size: 0.85rem;
    font-weight: 500;
    transition: all var(--app-transition);
}

.nav-tabs .nav-link:hover {
    color: var(--app-text);
    border-bottom-color: var(--app-border-strong);
}

.nav-tabs .nav-link.active {
    color: var(--app-accent);
    border-bottom-color: var(--app-accent);
    background: transparent;
}

/* ----- Tooltips ----- */
.tooltip-inner {
    background: rgba(24, 24, 27, 0.95);
    backdrop-filter: blur(8px);
    border: 1px solid var(--app-border);
    border-radius: var(--app-radius-sm);
    font-size: 0.8rem;
    padding: 0.35rem 0.6rem;
}