/* ============================================================
   main.css  —  Personal Portal
   Bootstrap 5 overrides + CSS custom properties (light/dark)
   ============================================================ */

/* ─── Custom properties — LIGHT theme (default) ─────────────── */
:root {
    /* Surfaces */
    --bg:            #f4f6fb;
    --surface:       #ffffff;
    --surface-2:     #f0f2f8;
    --border:        #dee2ef;

    /* Text */
    --text:          #1a1d2e;
    --text-muted:    #6b7280;
    --text-inv:      #ffffff;

    /* Accent / brand */
    --accent:        #4f6ef7;
    --accent-hover:  #3a57e8;
    --accent-light:  #e8ecff;

    /* Status */
    --success:       #22c55e;
    --warning:       #f59e0b;
    --danger:        #ef4444;
    --info:          #3b82f6;

    /* Sidebar */
    --sidebar-bg:        #1e2235;
    --sidebar-text:      #b0b8d8;
    --sidebar-hover-bg:  #2a3050;
    --sidebar-active-bg: #4f6ef7;
    --sidebar-active-text: #ffffff;
    --sidebar-width:     240px;

    /* Navbar */
    --navbar-bg:     #ffffff;
    --navbar-border: #dee2ef;
    --navbar-height: 58px;

    /* Cards */
    --card-shadow:   0 1px 4px rgba(0,0,0,.07), 0 4px 16px rgba(0,0,0,.04);

    /* Chart colours (used in JS too via CSS vars) */
    --chart-1: #4f6ef7;
    --chart-2: #22c55e;
    --chart-3: #f59e0b;
    --chart-4: #ef4444;
    --chart-5: #8b5cf6;
    --chart-6: #06b6d4;
}

/* ─── Custom properties — DARK theme ─────────────────────────── */
[data-theme="dark"] {
    --bg:            #0f1117;
    --surface:       #1a1d2e;
    --surface-2:     #222640;
    --border:        #2e3250;

    --text:          #e2e6f3;
    --text-muted:    #8a92b2;
    --text-inv:      #0f1117;

    --accent:        #6880ff;
    --accent-hover:  #4f6ef7;
    --accent-light:  #1e2550;

    --success:       #22c55e;
    --warning:       #fbbf24;
    --danger:        #f87171;
    --info:          #60a5fa;

    --sidebar-bg:        #13161f;
    --sidebar-text:      #8a92b2;
    --sidebar-hover-bg:  #1e2235;
    --sidebar-active-bg: #4f6ef7;
    --sidebar-active-text: #ffffff;

    --navbar-bg:     #1a1d2e;
    --navbar-border: #2e3250;

    --card-shadow:   0 1px 4px rgba(0,0,0,.3), 0 4px 16px rgba(0,0,0,.2);
}

/* ─── Bootstrap variable overrides ───────────────────────────── */
:root,
[data-theme="dark"] {
    --bs-body-bg:          var(--bg);
    --bs-body-color:       var(--text);
    --bs-border-color:     var(--border);
    --bs-card-bg:          var(--surface);
    --bs-card-border-color:var(--border);
    --bs-primary:          var(--accent);
    --bs-primary-rgb:      79, 110, 247;
    --bs-link-color:       var(--accent);
    --bs-link-hover-color: var(--accent-hover);
    --bs-secondary-color:  var(--text-muted);
}

/* ─── Base reset ──────────────────────────────────────────────── */
*, *::before, *::after {
    box-sizing: border-box;
}

html {
    font-size: 15px;
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg);
    color: var(--text);
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    transition: background-color .2s ease, color .2s ease;
    min-height: 100vh;
}

a {
    color: var(--accent);
    text-decoration: none;
}
a:hover {
    color: var(--accent-hover);
    text-decoration: underline;
}

/* ─── Layout ──────────────────────────────────────────────────── */
.portal-wrapper {
    display: flex;
    min-height: 100vh;
}

/* ─── Sidebar ─────────────────────────────────────────────────── */
.sidebar {
    width: var(--sidebar-width);
    min-height: 100vh;
    background: var(--sidebar-bg);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 1030;
    transition: transform .25s ease;
    overflow-y: auto;
    overflow-x: hidden;
}

.sidebar-brand {
    display: flex;
    align-items: center;
    gap: .65rem;
    padding: 1.1rem 1.25rem;
    color: #fff;
    font-weight: 700;
    font-size: 1.05rem;
    border-bottom: 1px solid rgba(255,255,255,.07);
    text-decoration: none;
}
.sidebar-brand:hover {
    color: #fff;
    text-decoration: none;
}
.sidebar-brand .brand-icon {
    width: 30px; height: 30px;
    background: var(--accent);
    border-radius: 8px;
    display: flex; align-items: center; justify-content: center;
    font-size: .9rem;
}

.sidebar-section {
    padding: .75rem 1rem .25rem;
    font-size: .68rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .08em;
    color: rgba(255,255,255,.3);
}

.sidebar .nav-link {
    display: flex;
    align-items: center;
    gap: .65rem;
    padding: .55rem 1.25rem;
    color: var(--sidebar-text);
    border-radius: 0;
    font-size: .875rem;
    transition: background .15s, color .15s;
    line-height: 1.4;
}
.sidebar .nav-link i {
    width: 18px;
    text-align: center;
    font-size: .95rem;
    opacity: .8;
}
.sidebar .nav-link:hover {
    background: var(--sidebar-hover-bg);
    color: #fff;
    text-decoration: none;
}
.sidebar .nav-link.active {
    background: var(--sidebar-active-bg);
    color: var(--sidebar-active-text);
    font-weight: 500;
}
.sidebar .nav-link.active i { opacity: 1; }

/* ─── Top Navbar ──────────────────────────────────────────────── */
.top-navbar {
    height: var(--navbar-height);
    background: var(--navbar-bg);
    border-bottom: 1px solid var(--navbar-border);
    display: flex;
    align-items: center;
    padding: 0 1.5rem;
    gap: .75rem;
    position: fixed;
    top: 0;
    left: var(--sidebar-width);
    right: 0;
    z-index: 1020;
    transition: left .25s ease;
}

.btn-sidebar-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.2rem;
    padding: .25rem .4rem;
    cursor: pointer;
    border-radius: 6px;
}
.btn-sidebar-toggle:hover { color: var(--text); background: var(--surface-2); }

.page-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text);
    margin: 0;
}

.navbar-spacer { flex: 1; }

/* Theme toggle button */
.btn-theme-toggle {
    background: none;
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: .3rem .55rem;
    color: var(--text-muted);
    cursor: pointer;
    font-size: .9rem;
    transition: all .15s;
    line-height: 1;
}
.btn-theme-toggle:hover { background: var(--surface-2); color: var(--text); }

/* Language switcher */
.lang-switcher {
    display: flex;
    gap: .3rem;
}
.lang-switcher a {
    font-size: .72rem;
    font-weight: 600;
    padding: .25rem .5rem;
    border-radius: 6px;
    color: var(--text-muted);
    border: 1px solid var(--border);
    text-decoration: none;
    transition: all .15s;
    text-transform: uppercase;
    letter-spacing: .04em;
}
.lang-switcher a:hover { background: var(--surface-2); color: var(--text); }
.lang-switcher a.active {
    background: var(--accent-light);
    color: var(--accent);
    border-color: var(--accent);
}

/* User avatar / dropdown */
.user-avatar {
    width: 32px; height: 32px;
    border-radius: 50%;
    background: var(--accent);
    color: #fff;
    font-weight: 700;
    font-size: .8rem;
    display: flex; align-items: center; justify-content: center;
    cursor: pointer;
    flex-shrink: 0;
}

/* ─── Main content area ───────────────────────────────────────── */
.main-content {
    margin-left: var(--sidebar-width);
    margin-top: var(--navbar-height);
    padding: 1.75rem 1.75rem;
    flex: 1;
    min-width: 0;
    transition: margin-left .25s ease;
}

/* ─── Cards ───────────────────────────────────────────────────── */
.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    box-shadow: var(--card-shadow);
}
.card-header {
    background: transparent;
    border-bottom: 1px solid var(--border);
    font-weight: 600;
    padding: .85rem 1.25rem;
}
.card-body { padding: 1.25rem; }

/* Stat cards */
.stat-card {
    border-radius: 12px;
    padding: 1.25rem 1.4rem;
    background: var(--surface);
    border: 1px solid var(--border);
    box-shadow: var(--card-shadow);
    display: flex;
    flex-direction: column;
    gap: .4rem;
}
.stat-card .stat-label {
    font-size: .78rem;
    font-weight: 500;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: .06em;
}
.stat-card .stat-value {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text);
    line-height: 1.1;
}
.stat-card .stat-unit {
    font-size: .85rem;
    color: var(--text-muted);
    font-weight: 400;
}
.stat-card .stat-trend {
    font-size: .78rem;
    font-weight: 500;
}
.stat-card .stat-icon {
    font-size: 1.4rem;
    opacity: .7;
}
.stat-trend.up   { color: var(--danger); }
.stat-trend.down { color: var(--success); }
.stat-trend.flat { color: var(--text-muted); }

/* ─── Tables ──────────────────────────────────────────────────── */
.table {
    color: var(--text);
    /* Override Bootstrap 5's internal table colour tokens so cells
       inherit our theme in both light and dark mode. */
    --bs-table-color:          var(--text);
    --bs-table-striped-color:  var(--text);
    --bs-table-hover-color:    var(--text);
    --bs-table-active-color:   var(--text);
    --bs-table-bg:             transparent;
    --bs-table-striped-bg:     var(--surface-2);
    --bs-table-hover-bg:       var(--accent-light);
    --bs-table-active-bg:      var(--accent-light);
    --bs-table-border-color:   var(--border);
}
/* Explicit fallback — some Bootstrap builds ignore the token above */
.table > :not(caption) > * > * {
    color: var(--text);
    background-color: transparent;
}
.table tbody tr:hover > * {
    color: var(--text);
}
.table thead th {
    background: var(--surface-2);
    color: var(--text-muted);
    font-size: .75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .07em;
    border-bottom: 2px solid var(--border);
    white-space: nowrap;
    padding: .65rem 1rem;
}
.table td { padding: .7rem 1rem; vertical-align: middle; }

/* Sortable column headers */
th.sortable {
    cursor: pointer;
    user-select: none;
}
th.sortable::after {
    content: ' ↕';
    opacity: .35;
    font-size: .65rem;
}
th.sort-asc::after  { content: ' ↑'; opacity: 1; color: var(--accent); }
th.sort-desc::after { content: ' ↓'; opacity: 1; color: var(--accent); }

/* ─── Forms ───────────────────────────────────────────────────── */
.form-label {
    font-weight: 500;
    font-size: .875rem;
    color: var(--text);
    margin-bottom: .35rem;
}
.form-label .required {
    color: var(--danger);
    margin-left: .2rem;
}
.form-control,
.form-select {
    background-color: var(--surface);
    border-color: var(--border);
    color: var(--text);
    border-radius: 8px;
    font-size: .875rem;
    transition: border-color .15s, box-shadow .15s;
}
.form-control:focus,
.form-select:focus {
    background-color: var(--surface);
    color: var(--text);
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(79,110,247,.15);
}
.form-control::placeholder { color: var(--text-muted); opacity: .7; }
.form-text { font-size: .78rem; color: var(--text-muted); }

.form-check-input:checked {
    background-color: var(--accent);
    border-color: var(--accent);
}

/* File upload zone */
.file-upload-zone {
    border: 2px dashed var(--border);
    border-radius: 10px;
    padding: 2rem;
    text-align: center;
    color: var(--text-muted);
    font-size: .875rem;
    cursor: pointer;
    transition: border-color .15s, background .15s;
}
.file-upload-zone:hover {
    border-color: var(--accent);
    background: var(--accent-light);
    color: var(--accent);
}

/* ─── Buttons ─────────────────────────────────────────────────── */
.btn {
    border-radius: 8px;
    font-size: .875rem;
    font-weight: 500;
    padding: .45rem 1rem;
    transition: all .15s;
}
.btn-primary {
    background-color: var(--accent);
    border-color: var(--accent);
    color: #fff;
}
.btn-primary:hover {
    background-color: var(--accent-hover);
    border-color: var(--accent-hover);
    color: #fff;
}
.btn-outline-secondary {
    border-color: var(--border);
    color: var(--text-muted);
}
.btn-outline-secondary:hover {
    background: var(--surface-2);
    color: var(--text);
    border-color: var(--border);
}
.btn-sm { padding: .25rem .65rem; font-size: .8rem; }

/* ─── Badges ──────────────────────────────────────────────────── */
.badge {
    font-weight: 500;
    font-size: .72rem;
    padding: .3em .6em;
    border-radius: 6px;
}

/* ─── Alerts ──────────────────────────────────────────────────── */
.alert {
    border-radius: 10px;
    border: 1px solid var(--border);
    font-size: .875rem;
}
.alert-success { background: rgba(34,197,94,.12);  border-color: rgba(34,197,94,.3);  color: #16a34a; }
.alert-danger   { background: rgba(239,68,68,.12);  border-color: rgba(239,68,68,.3);  color: #dc2626; }
.alert-warning  { background: rgba(245,158,11,.12); border-color: rgba(245,158,11,.3); color: #d97706; }
.alert-info     { background: rgba(59,130,246,.12); border-color: rgba(59,130,246,.3); color: #2563eb; }

[data-theme="dark"] .alert-success { color: #4ade80; }
[data-theme="dark"] .alert-danger   { color: #f87171; }
[data-theme="dark"] .alert-warning  { color: #fbbf24; }
[data-theme="dark"] .alert-info     { color: #60a5fa; }

/* ─── Pagination ──────────────────────────────────────────────── */
.page-link {
    background-color: var(--surface);
    border-color: var(--border);
    color: var(--text-muted);
    border-radius: 6px !important;
    font-size: .82rem;
    padding: .35rem .6rem;
    margin: 0 2px;
}
.page-link:hover { background: var(--surface-2); color: var(--text); border-color: var(--border); }
.page-item.active .page-link {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
}
.page-item.disabled .page-link { opacity: .4; }

/* ─── Auth pages ──────────────────────────────────────────────── */
.auth-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg);
    padding: 1rem;
}
.auth-card {
    width: 100%;
    max-width: 420px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 2.25rem 2rem;
    box-shadow: var(--card-shadow);
}
.auth-logo {
    width: 44px; height: 44px;
    background: var(--accent);
    border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    color: #fff;
    font-size: 1.3rem;
    margin: 0 auto 1.25rem;
}
.auth-title {
    font-size: 1.35rem;
    font-weight: 700;
    text-align: center;
    color: var(--text);
    margin-bottom: .35rem;
}
.auth-subtitle {
    font-size: .875rem;
    color: var(--text-muted);
    text-align: center;
    margin-bottom: 1.75rem;
}

/* ─── Charts ──────────────────────────────────────────────────── */
.chart-container {
    position: relative;
    width: 100%;
}

/* ─── Dropdown menu ───────────────────────────────────────────── */
.dropdown-menu {
    background: var(--surface);
    border-color: var(--border);
    border-radius: 10px;
    box-shadow: var(--card-shadow);
    font-size: .875rem;
    padding: .4rem;
    min-width: 180px;
}
.dropdown-item {
    color: var(--text);
    border-radius: 6px;
    padding: .45rem .75rem;
    display: flex; align-items: center; gap: .5rem;
}
.dropdown-item i { width: 16px; text-align: center; opacity: .7; }
.dropdown-item:hover { background: var(--surface-2); color: var(--text); }
.dropdown-divider { border-color: var(--border); margin: .3rem 0; }

/* ─── Scrollbar (WebKit) ──────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* ─── Responsive ──────────────────────────────────────────────── */
@media (max-width: 991.98px) {
    .sidebar {
        transform: translateX(-100%);
    }
    .sidebar.is-open {
        transform: translateX(0);
    }
    .top-navbar {
        left: 0;
    }
    .main-content {
        margin-left: 0;
    }
    .btn-sidebar-toggle {
        display: flex;
    }

    /* Overlay when sidebar is open on mobile */
    .sidebar-overlay {
        display: none;
        position: fixed; inset: 0;
        background: rgba(0,0,0,.4);
        z-index: 1029;
    }
    .sidebar-overlay.is-open { display: block; }
}

@media (max-width: 575.98px) {
    .main-content { padding: 1rem; }
    .stat-card .stat-value { font-size: 1.5rem; }
    .lang-switcher { display: none; }  /* show in profile instead */
}

/* ─── Utility helpers ─────────────────────────────────────────── */
.text-accent  { color: var(--accent) !important; }
.text-muted   { color: var(--text-muted) !important; }
.bg-surface   { background: var(--surface) !important; }
.bg-surface-2 { background: var(--surface-2) !important; }
.border-subtle { border-color: var(--border) !important; }
.rounded-xl   { border-radius: 12px !important; }
.shadow-card  { box-shadow: var(--card-shadow) !important; }

/* ─── Bootstrap component dark-mode fixes ─────────────────────── */
/* list-group */
.list-group-item {
    background-color: var(--surface);
    border-color: var(--border);
    color: var(--text);
}
.list-group-item:hover {
    background-color: var(--surface-2);
    color: var(--text);
}

/* input-group-text */
.input-group-text {
    background-color: var(--surface-2);
    border-color: var(--border);
    color: var(--text-muted);
}

/* modal */
.modal-content {
    background-color: var(--surface);
    border-color: var(--border);
    color: var(--text);
}
.modal-header, .modal-footer {
    border-color: var(--border);
}

/* form-select option (browser-native; best we can do) */
.form-select option {
    background: var(--surface);
    color: var(--text);
}

/* Bootstrap close button */
.btn-close {
    filter: var(--bs-btn-close-white-filter, none);
}
[data-theme="dark"] .btn-close {
    filter: invert(1) grayscale(100%) brightness(200%);
}

/* ─── Page-load fade ─────────────────────────────────────────── */
/*
 * Applying the fade on <body> keeps the animation at the root
 * stacking context, so Bootstrap modals (z-index: 1055) always
 * paint above the backdrop (z-index: 1050) regardless of DOM nesting.
 */
body {
    animation: pageLoad .25s ease both;
}
@keyframes pageLoad {
    from { opacity: 0; }
    to   { opacity: 1; }
}

/* Legacy .fade-in class kept for explicit use on non-modal containers */
.fade-in {
    animation: fadeIn .3s ease forwards;
}
@keyframes fadeIn {
    from { opacity: 0; }
    to   { opacity: 1; }
}