/* ==========================================================================
   Flow Station — Triple Theme System
   ========================================================================== */

/* ==========================================================================
   1. Theme Variable Definitions
   ========================================================================== */

/* ---------- Light Theme (default) ---------- */
:root,
[data-theme="light"] {
    --fs-bg: #f8f9fb;
    --fs-surface: #ffffff;
    --fs-surface-elevated: #ffffff;
    --fs-border: #e8eaed;
    --fs-border-subtle: #f0f1f3;
    --fs-text: #111827;
    --fs-text-secondary: #6b7280;
    --fs-text-muted: #9ca3af;
    --fs-text-faint: #d1d5db;
    --fs-primary: #6d28d9;
    --fs-primary-light: #8b5cf6;
    --fs-primary-bg: #ede9fe;
    --fs-sidebar-bg: #ffffff;
    --fs-sidebar-border: #e8eaed;
    --fs-sidebar-active-bg: #ede9fe;
    --fs-sidebar-active-text: #6d28d9;
    --fs-success: #16a34a;
    --fs-success-bg: #dcfce7;
    --fs-danger: #dc2626;
    --fs-danger-bg: #fef2f2;
    --fs-warning: #d97706;
    --fs-warning-bg: #fef3c7;
    --fs-info: #2563eb;
    --fs-info-bg: #dbeafe;
    --fs-radius: 14px;
    --fs-radius-sm: 10px;
    --fs-font: 'Inter', sans-serif;
}

/* ---------- Dark Theme ---------- */
[data-theme="dark"] {
    --fs-bg: #0c0c0f;
    --fs-surface: #141418;
    --fs-surface-elevated: #1c1c21;
    --fs-border: #27272a;
    --fs-border-subtle: #1e1e23;
    --fs-text: #fafafa;
    --fs-text-secondary: #a1a1aa;
    --fs-text-muted: #71717a;
    --fs-text-faint: #52525b;
    --fs-primary: #818cf8;
    --fs-primary-light: #a5b4fc;
    --fs-primary-bg: rgba(129, 140, 248, 0.12);
    --fs-sidebar-bg: #141418;
    --fs-sidebar-border: #27272a;
    --fs-sidebar-active-bg: #1c1c21;
    --fs-sidebar-active-text: #e4e4e7;
    --fs-success: #4ade80;
    --fs-success-bg: rgba(74, 222, 128, 0.12);
    --fs-danger: #f87171;
    --fs-danger-bg: rgba(248, 113, 113, 0.15);
    --fs-warning: #fbbf24;
    --fs-warning-bg: rgba(251, 191, 36, 0.12);
    --fs-info: #60a5fa;
    --fs-info-bg: rgba(96, 165, 250, 0.12);
    --fs-radius: 12px;
    --fs-radius-sm: 8px;
    --fs-font: 'Inter', sans-serif;
}

/* ---------- Warm Theme ---------- */
[data-theme="warm"] {
    --fs-bg: #faf8f5;
    --fs-surface: #ffffff;
    --fs-surface-elevated: #ffffff;
    --fs-border: #e6dfd6;
    --fs-border-subtle: #f0ebe4;
    --fs-text: #2c2420;
    --fs-text-secondary: #5a4d44;
    --fs-text-muted: #8c7b6f;
    --fs-text-faint: #b5a99a;
    --fs-primary: #c2734c;
    --fs-primary-light: #d4956b;
    --fs-primary-bg: #fbeee6;
    --fs-sidebar-bg: #f3efe9;
    --fs-sidebar-border: #e6dfd6;
    --fs-sidebar-active-bg: #2c2420;
    --fs-sidebar-active-text: #faf8f5;
    --fs-success: #5a7a52;
    --fs-success-bg: #e8efe6;
    --fs-danger: #c44141;
    --fs-danger-bg: #fce8e8;
    --fs-warning: #b8834a;
    --fs-warning-bg: #f5e6d8;
    --fs-info: #6b5d52;
    --fs-info-bg: #eae6e0;
    --fs-radius: 14px;
    --fs-radius-sm: 10px;
    --fs-font: 'DM Sans', sans-serif;
}

/* ==========================================================================
   2. Base / Reset
   ========================================================================== */

*,
*::before,
*::after {
    box-sizing: border-box;
}

body {
    background: var(--fs-bg);
    color: var(--fs-text);
    font-family: var(--fs-font);
    min-height: 100vh;
    margin: 0;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
    color: var(--fs-text);
    font-weight: 700;
}

a {
    color: var(--fs-primary);
    transition: color 0.15s;
}

a:hover {
    color: var(--fs-primary-light);
}

hr {
    border-color: var(--fs-border);
    opacity: 1;
}

/* ==========================================================================
   3. Sidebar
   ========================================================================== */

.fs-sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: 240px;
    background: var(--fs-sidebar-bg);
    border-right: 1px solid var(--fs-sidebar-border);
    display: flex;
    flex-direction: column;
    z-index: 1040;
    transition: transform 0.25s ease;
}

.fs-sidebar-brand {
    display: flex;
    align-items: center;
    padding: 1.25rem 1.25rem 1rem;
    gap: 0.5rem;
}

.fs-brand-dot {
    display: inline-block;
    width: 10px;
    height: 10px;
    background: var(--fs-primary);
    border-radius: 50%;
    flex-shrink: 0;
}

.fs-brand-text {
    font-weight: 700;
    font-size: 1.125rem;
    color: var(--fs-text);
    letter-spacing: -0.5px;
}

.fs-sidebar-nav {
    flex: 1;
    padding: 0.5rem 0.75rem;
    display: flex;
    flex-direction: column;
    gap: 2px;
    overflow-y: auto;
}

.fs-nav-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.625rem 0.75rem;
    border-radius: var(--fs-radius-sm);
    color: var(--fs-text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9rem;
    transition: all 0.15s;
    border: none;
    background: none;
    cursor: pointer;
    width: 100%;
    text-align: left;
}

.fs-nav-link i {
    font-size: 1.125rem;
    width: 1.25rem;
    text-align: center;
}

.fs-nav-link:hover {
    background: var(--fs-border-subtle);
    color: var(--fs-text);
    text-decoration: none;
}

.fs-nav-link.active {
    background: var(--fs-sidebar-active-bg);
    color: var(--fs-sidebar-active-text);
    font-weight: 600;
}

.fs-sidebar-footer {
    padding: 0.75rem;
    border-top: 1px solid var(--fs-sidebar-border);
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

/* Theme Picker */
.fs-theme-picker {
    display: flex;
    gap: 0.5rem;
    justify-content: center;
    padding: 0.5rem 0;
}

.fs-theme-swatch {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    border: 2px solid var(--fs-border);
    cursor: pointer;
    transition: all 0.15s;
    padding: 0;
}

.fs-theme-swatch:hover {
    transform: scale(1.15);
}

.fs-theme-swatch.active {
    border-color: var(--fs-primary);
    box-shadow: 0 0 0 2px var(--fs-primary-bg);
}

.fs-theme-swatch--light {
    background: #f8f9fb;
}

.fs-theme-swatch--dark {
    background: #0c0c0f;
}

.fs-theme-swatch--warm {
    background: linear-gradient(135deg, #c2734c, #e6dfd6);
}

.fs-sidebar-user {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.375rem 0.75rem;
    font-size: 0.85rem;
    color: var(--fs-text-secondary);
    font-weight: 500;
}

.fs-sidebar-user i {
    font-size: 1.125rem;
}

.fs-logout-btn {
    color: var(--fs-text-muted);
    font-size: 0.85rem;
}

.fs-logout-btn:hover {
    color: var(--fs-danger);
    background: var(--fs-danger-bg);
}

/* ==========================================================================
   4. Main Content
   ========================================================================== */

.fs-main {
    margin-left: 240px;
    padding: 2rem;
    min-height: 100vh;
}

/* ==========================================================================
   5. Cards
   ========================================================================== */

.card {
    background: var(--fs-surface);
    border: 1px solid var(--fs-border);
    border-radius: var(--fs-radius);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
    color: var(--fs-text);
}

.card-header {
    background: var(--fs-surface);
    border-bottom: 1px solid var(--fs-border);
    color: var(--fs-text);
    padding: 1rem 1.25rem;
}

.card-footer {
    background: var(--fs-surface);
    border-top: 1px solid var(--fs-border);
}

.card-title {
    color: var(--fs-text);
}

/* Stat Cards */
.stat-card .stat-value {
    font-size: 1.75rem;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
}

.stat-card .stat-label {
    font-size: 0.875rem;
    color: var(--fs-text-secondary);
}

/* ==========================================================================
   6. Tables
   ========================================================================== */

.table {
    --bs-table-bg: transparent;
    --bs-table-color: var(--fs-text);
    --bs-table-border-color: var(--fs-border);
    --bs-table-hover-bg: var(--fs-border-subtle);
    --bs-table-hover-color: var(--fs-text);
    color: var(--fs-text);
}

.table thead th {
    color: var(--fs-text-secondary);
    font-weight: 600;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    border-bottom-color: var(--fs-border);
}

.table > :not(caption) > * > * {
    border-bottom-color: var(--fs-border);
}

/* ==========================================================================
   7. Buttons
   ========================================================================== */

.btn {
    border-radius: var(--fs-radius-sm);
    font-weight: 500;
    transition: all 0.15s;
}

.btn-primary {
    background: var(--fs-primary);
    border-color: var(--fs-primary);
    color: #fff;
}

.btn-primary:hover,
.btn-primary:focus {
    background: var(--fs-primary-light);
    border-color: var(--fs-primary-light);
    color: #fff;
}

.btn-outline-primary {
    color: var(--fs-primary);
    border-color: var(--fs-primary);
    background: transparent;
}

.btn-outline-primary:hover,
.btn-outline-primary:focus {
    background: var(--fs-primary);
    border-color: var(--fs-primary);
    color: #fff;
}

.btn-success {
    background: var(--fs-success);
    border-color: var(--fs-success);
    color: #fff;
}

.btn-success:hover {
    filter: brightness(1.1);
}

.btn-outline-secondary {
    color: var(--fs-text-secondary);
    border-color: var(--fs-border);
}

.btn-outline-secondary:hover {
    background: var(--fs-border-subtle);
    color: var(--fs-text);
    border-color: var(--fs-border);
}

.btn-outline-danger {
    color: var(--fs-danger);
    border-color: var(--fs-danger);
}

.btn-outline-danger:hover {
    background: var(--fs-danger);
    border-color: var(--fs-danger);
    color: #fff;
}

.btn-secondary {
    background: var(--fs-surface-elevated);
    border-color: var(--fs-border);
    color: var(--fs-text);
}

.btn-secondary:hover {
    background: var(--fs-border-subtle);
    border-color: var(--fs-border);
    color: var(--fs-text);
}

.btn-link {
    color: var(--fs-text-secondary);
}

.btn-link:hover {
    color: var(--fs-text);
}

/* ==========================================================================
   8. Form Controls
   ========================================================================== */

.form-control,
.form-select {
    background: var(--fs-surface);
    border: 1px solid var(--fs-border);
    color: var(--fs-text);
    border-radius: var(--fs-radius-sm);
    transition: border-color 0.15s, box-shadow 0.15s;
}

.form-control:focus,
.form-select:focus {
    background: var(--fs-surface);
    border-color: var(--fs-primary);
    color: var(--fs-text);
    box-shadow: 0 0 0 3px var(--fs-primary-bg);
}

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

.form-control:disabled,
.form-control[readonly] {
    background: var(--fs-border-subtle);
    color: var(--fs-text-secondary);
}

.form-label {
    color: var(--fs-text-secondary);
    font-weight: 500;
    font-size: 0.875rem;
}

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

.input-group-text {
    background: var(--fs-surface-elevated);
    border-color: var(--fs-border);
    color: var(--fs-text-secondary);
}

.form-control.is-invalid {
    border-color: var(--fs-danger);
}

.invalid-feedback {
    color: var(--fs-danger);
}

/* ==========================================================================
   9. Badges
   ========================================================================== */

.status-badge-draft,
.bg-secondary {
    background-color: var(--fs-border-subtle) !important;
    color: var(--fs-text-secondary) !important;
}

.status-badge-active,
.badge.bg-primary {
    background-color: var(--fs-primary) !important;
    color: #fff !important;
}

.status-badge-complete,
.badge.bg-success {
    background-color: var(--fs-success) !important;
    color: #fff !important;
}

.status-badge-archived,
.badge.bg-light {
    background-color: var(--fs-border-subtle) !important;
    color: var(--fs-text-muted) !important;
}

.badge.bg-danger {
    background-color: var(--fs-danger) !important;
}

.badge.bg-info {
    background-color: var(--fs-info) !important;
}

.badge.bg-warning {
    background-color: var(--fs-warning) !important;
}

/* Onboarding badges */
.badge.rounded-pill.bg-primary {
    background-color: var(--fs-primary) !important;
}

.badge.rounded-pill.bg-success {
    background-color: var(--fs-success) !important;
}

.badge.rounded-pill.bg-secondary {
    background-color: var(--fs-border-subtle) !important;
    color: var(--fs-text-secondary) !important;
}

/* ==========================================================================
   10. Modals
   ========================================================================== */

.modal-content {
    background: var(--fs-surface);
    border: 1px solid var(--fs-border);
    border-radius: var(--fs-radius);
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.12);
    color: var(--fs-text);
}

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

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

/* btn-close filter for dark theme */
[data-theme="dark"] .btn-close {
    filter: invert(1) grayscale(100%) brightness(200%);
}

/* ==========================================================================
   11. Alerts
   ========================================================================== */

.alert-success {
    background: var(--fs-success-bg);
    border-color: var(--fs-success);
    color: var(--fs-success);
}

.alert-danger {
    background: var(--fs-danger-bg);
    border-color: var(--fs-danger);
    color: var(--fs-danger);
}

.alert-warning {
    background: var(--fs-warning-bg);
    border-color: var(--fs-warning);
    color: var(--fs-warning);
}

.alert-info {
    background: var(--fs-info-bg);
    border-color: var(--fs-info);
    color: var(--fs-info);
}

[data-theme="dark"] .alert-dismissible .btn-close {
    filter: invert(1) grayscale(100%) brightness(200%);
}

/* ==========================================================================
   12. Progress Bars
   ========================================================================== */

.progress {
    background: var(--fs-border-subtle);
    border-radius: 999px;
}

.progress-bar.bg-danger {
    background-color: var(--fs-danger) !important;
}

.progress-bar.bg-warning {
    background-color: var(--fs-warning) !important;
}

.progress-bar.bg-success {
    background-color: var(--fs-success) !important;
}

/* ==========================================================================
   13. Dropdown Menus
   ========================================================================== */

.dropdown-menu {
    background: var(--fs-surface-elevated);
    border: 1px solid var(--fs-border);
    border-radius: var(--fs-radius-sm);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.dropdown-item {
    color: var(--fs-text-secondary);
}

.dropdown-item:hover,
.dropdown-item:focus {
    background: var(--fs-border-subtle);
    color: var(--fs-text);
}

.dropdown-divider {
    border-color: var(--fs-border);
}

/* ==========================================================================
   14. Tabs
   ========================================================================== */

.nav-tabs {
    border-bottom-color: var(--fs-border);
}

.nav-tabs .nav-link {
    color: var(--fs-text-secondary);
    border: 1px solid transparent;
    border-radius: var(--fs-radius-sm) var(--fs-radius-sm) 0 0;
}

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

.nav-tabs .nav-link.active {
    background: var(--fs-surface);
    border-color: var(--fs-border) var(--fs-border) transparent;
    color: var(--fs-primary);
}

/* ==========================================================================
   15. List Groups
   ========================================================================== */

.list-group-item {
    background: transparent;
    border-color: var(--fs-border);
    color: var(--fs-text);
}

.list-group-item-action:hover {
    background: var(--fs-border-subtle);
    color: var(--fs-text);
}

/* ==========================================================================
   16. Text Utilities
   ========================================================================== */

.text-muted {
    color: var(--fs-text-secondary) !important;
}

.text-primary {
    color: var(--fs-primary) !important;
}

.text-success {
    color: var(--fs-success) !important;
}

.text-danger {
    color: var(--fs-danger) !important;
}

.text-warning {
    color: var(--fs-warning) !important;
}

.text-info {
    color: var(--fs-info) !important;
}

.text-dark {
    color: var(--fs-text-secondary) !important;
}

/* ==========================================================================
   17. Misc Utilities
   ========================================================================== */

.currency::before {
    content: "\00A3";
}

.text-decoration-none {
    color: var(--fs-primary);
}

.text-decoration-none:hover {
    color: var(--fs-primary-light);
}

.border-top {
    border-color: var(--fs-border) !important;
}

/* Financial numbers */
.fs-4.fw-bold,
.stat-value {
    font-variant-numeric: tabular-nums;
}

/* Focus accessibility */
:focus-visible {
    outline: 2px solid var(--fs-primary);
    outline-offset: 2px;
}

/* Scrollbar (webkit) */
::-webkit-scrollbar {
    width: 8px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--fs-text-faint);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--fs-text-muted);
}

/* ==========================================================================
   18. Auth Pages
   ========================================================================== */

.auth-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 2rem 1rem;
    background: var(--fs-bg);
}

.auth-card {
    width: 100%;
    max-width: 420px;
}

.auth-page h1 {
    color: var(--fs-text);
}

/* ==========================================================================
   19. Responsive
   ========================================================================== */

@media (max-width: 991.98px) {
    .fs-sidebar {
        transform: translateX(-100%);
    }

    .fs-sidebar.open {
        transform: translateX(0);
    }

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

@media (max-width: 768px) {
    .card {
        border-radius: var(--fs-radius-sm);
    }

    .stat-card .stat-value {
        font-size: 1.4rem;
    }

    .fs-main {
        padding: 1rem;
    }
}