/* ==========================================================================
   EduTime Smart Pro — design system
   Navy & emerald SaaS theme shared by every Filament panel.
   Self-contained (no build step). Uses logical properties so the same rules
   work for Arabic (RTL) and French (LTR). Dark mode follows Filament's
   `.dark` class on <html>.
   ========================================================================== */

:root {
    /* Primary #102A43 (deep navy) · Secondary #2563EB (blue) · Accent #10B981 (emerald) */
    --et-navy-950: #061a2b;
    --et-navy-900: #0b2135;
    --et-navy-800: #102a43;
    --et-navy-700: #102a43;
    --et-navy-600: #243b53;
    --et-navy-100: #d9e2ec;
    --et-navy-50: #f0f4f8;

    --et-blue-700: #1d4ed8;
    --et-blue-600: #2563eb;
    --et-blue-500: #3b82f6;
    --et-blue-100: #dbeafe;
    --et-blue-50: #eff6ff;

    --et-font-ar: "Cairo", ui-sans-serif, system-ui, sans-serif;
    --et-font-fr: "Inter", ui-sans-serif, system-ui, sans-serif;

    --et-emerald-700: #047857;
    --et-emerald-600: #059669;
    --et-emerald-500: #10b981;
    --et-emerald-400: #34d399;
    --et-emerald-100: #d1fae5;
    --et-emerald-50: #ecfdf5;

    --et-amber: #d97706;
    --et-amber-bg: #fef3c7;
    --et-rose: #e11d48;
    --et-rose-bg: #ffe4e6;
    --et-sky: #0284c7;
    --et-sky-bg: #e0f2fe;
    --et-violet: #7c3aed;
    --et-violet-bg: #ede9fe;

    --et-bg: #f4f6fb;
    --et-surface: #ffffff;
    --et-surface-2: #f8fafc;
    --et-border: #e3e8f2;
    --et-text: #0f172a;
    --et-muted: #64748b;
    --et-radius: 1rem;
    --et-radius-sm: .65rem;
    --et-shadow: 0 1px 2px rgba(15, 31, 75, .04), 0 8px 24px -12px rgba(15, 31, 75, .14);
    --et-shadow-lg: 0 20px 45px -20px rgba(15, 31, 75, .35);

    --et-cm: #1e3a8a;
    --et-cm-bg: #e0e8fb;
    --et-td: #047857;
    --et-td-bg: #d1fae5;
    --et-tp: #7c3aed;
    --et-tp-bg: #ede9fe;
}

.dark {
    --et-bg: #0b1222;
    --et-surface: #111a2e;
    --et-surface-2: #0e1628;
    --et-border: #1f2b45;
    --et-text: #e5ecf8;
    --et-muted: #8fa0bd;
    --et-navy-100: #1c3550;
    --et-navy-50: #142a40;
    --et-blue-100: #172e5c;
    --et-blue-50: #12254a;
    --et-emerald-100: #0c3b2e;
    --et-emerald-50: #0a2c23;
    --et-amber-bg: #3a2a08;
    --et-rose-bg: #3d0f1c;
    --et-sky-bg: #0b2a40;
    --et-violet-bg: #2a1a4f;
    --et-cm: #a5b8f5;
    --et-cm-bg: #1b2b57;
    --et-td: #6ee7b7;
    --et-td-bg: #0c3b2e;
    --et-tp: #c4b5fd;
    --et-tp-bg: #2a1a4f;
    --et-shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 8px 24px -12px rgba(0, 0, 0, .6);
}

/* --------------------------------------------------------------------------
   Filament chrome polish
   -------------------------------------------------------------------------- */

.fi-body { background: var(--et-bg); }

/* Arabic in Cairo, French in Inter (Filament reads --font-family). */
html[lang="fr"] { --font-family: "Inter"; }
html[lang="fr"] body { font-family: var(--et-font-fr); }
html[lang="ar"] body { font-family: var(--et-font-ar); }

.fi-sidebar {
    background: linear-gradient(180deg, var(--et-navy-900) 0%, var(--et-navy-950) 100%) !important;
    border-inline-end: 1px solid rgba(255, 255, 255, .06);
}
.fi-sidebar .fi-sidebar-header { background: transparent !important; border-color: rgba(255, 255, 255, .06) !important; box-shadow: none !important; }
.fi-sidebar .fi-logo { color: #fff; font-weight: 800; letter-spacing: -.01em; }
.fi-sidebar .fi-sidebar-group-label { color: rgba(203, 213, 245, .55) !important; text-transform: uppercase; font-size: .68rem; letter-spacing: .08em; }
.fi-sidebar .fi-sidebar-item-label,
.fi-sidebar .fi-sidebar-item-btn svg,
.fi-sidebar .fi-sidebar-group-btn svg { color: rgba(226, 232, 255, .82) !important; }
.fi-sidebar .fi-sidebar-item-btn { border-radius: .7rem; transition: background .15s ease, transform .15s ease; }
.fi-sidebar .fi-sidebar-item-btn:hover { background: rgba(255, 255, 255, .06) !important; }
.fi-sidebar .fi-sidebar-item.fi-active > .fi-sidebar-item-btn {
    background: linear-gradient(90deg, rgba(16, 185, 129, .22), rgba(16, 185, 129, .06)) !important;
    box-shadow: inset 3px 0 0 var(--et-emerald-400);
}
[dir="rtl"] .fi-sidebar .fi-sidebar-item.fi-active > .fi-sidebar-item-btn { box-shadow: inset -3px 0 0 var(--et-emerald-400); }
.fi-sidebar .fi-sidebar-item.fi-active .fi-sidebar-item-label,
.fi-sidebar .fi-sidebar-item.fi-active svg { color: #fff !important; }
.fi-sidebar .fi-sidebar-item-grouped-border-part { background: rgba(255, 255, 255, .18) !important; }

.fi-topbar { backdrop-filter: saturate(1.4) blur(10px); }
.fi-topbar > nav, .fi-topbar-ctn > nav { background: color-mix(in srgb, var(--et-surface) 82%, transparent) !important; }

.fi-section, .fi-ta-ctn, .fi-wi-stats-overview-stat, .fi-fo-field-wrp .fi-input-wrp { border-radius: var(--et-radius) !important; }
.fi-section, .fi-ta-ctn { box-shadow: var(--et-shadow) !important; }
.fi-wi-stats-overview-stat { position: relative; overflow: hidden; box-shadow: var(--et-shadow) !important; }
.fi-wi-stats-overview-stat::before {
    content: ""; position: absolute; inset-inline-start: 0; inset-block: 0; width: 4px;
    background: linear-gradient(180deg, var(--et-emerald-500), var(--et-navy-700));
}
.fi-header-heading { letter-spacing: -.02em; }

.fi-simple-layout { background: radial-gradient(1200px 600px at 10% -10%, rgba(16, 185, 129, .16), transparent 60%), radial-gradient(900px 500px at 110% 10%, rgba(30, 58, 138, .22), transparent 60%), var(--et-bg); }
.fi-simple-main { border-radius: 1.5rem !important; box-shadow: var(--et-shadow-lg) !important; }

/* --------------------------------------------------------------------------
   Layout primitives
   -------------------------------------------------------------------------- */

.et-stack { display: flex; flex-direction: column; gap: 1.25rem; }
.et-stack-sm { display: flex; flex-direction: column; gap: .6rem; }
.et-row { display: flex; align-items: center; gap: .75rem; flex-wrap: wrap; }
.et-row-between { display: flex; align-items: center; justify-content: space-between; gap: .75rem; flex-wrap: wrap; }
.et-grid { display: grid; gap: 1rem; grid-template-columns: repeat(1, minmax(0, 1fr)); }
@media (min-width: 640px) { .et-grid-2, .et-grid-3, .et-grid-4, .et-grid-6 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (min-width: 1024px) {
    .et-grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .et-grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
    .et-grid-6 { grid-template-columns: repeat(6, minmax(0, 1fr)); }
    .et-span-2 { grid-column: span 2 / span 2; }
    .et-sidebar-layout { grid-template-columns: 17rem minmax(0, 1fr); }
}
.et-scroll-x { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.et-muted { color: var(--et-muted); }
.et-small { font-size: .78rem; }
.et-xs { font-size: .7rem; }
.et-strong { font-weight: 700; }
.et-mono { font-variant-numeric: tabular-nums; }
.et-truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.et-center { text-align: center; }
.et-hidden { display: none !important; }

/* --------------------------------------------------------------------------
   Cards, KPIs
   -------------------------------------------------------------------------- */

.et-card {
    background: var(--et-surface); border: 1px solid var(--et-border); border-radius: var(--et-radius);
    box-shadow: var(--et-shadow); color: var(--et-text);
}
.et-card-header { display: flex; align-items: center; justify-content: space-between; gap: .75rem; padding: 1rem 1.25rem; border-bottom: 1px solid var(--et-border); flex-wrap: wrap; }
.et-card-title { font-weight: 800; font-size: .98rem; display: flex; align-items: center; gap: .5rem; }
.et-card-body { padding: 1.1rem 1.25rem; }
.et-card-flush { padding: 0; }

.et-hero {
    border-radius: 1.25rem; padding: 1.4rem 1.6rem; color: #fff; position: relative; overflow: hidden;
    background: radial-gradient(600px 220px at 100% 0%, rgba(52, 211, 153, .35), transparent 60%), linear-gradient(120deg, var(--et-navy-800), var(--et-navy-950));
    box-shadow: var(--et-shadow-lg);
}
.et-hero h2 { font-size: 1.35rem; font-weight: 800; letter-spacing: -.02em; }
.et-hero p { color: rgba(226, 232, 255, .8); font-size: .88rem; margin-top: .25rem; }

.et-kpi { display: flex; gap: .9rem; align-items: center; padding: 1rem 1.1rem; }
.et-kpi-icon { flex: none; width: 2.75rem; height: 2.75rem; border-radius: .85rem; display: grid; place-items: center; background: var(--et-tone-bg, var(--et-navy-50)); color: var(--et-tone, var(--et-navy-700)); }
.et-kpi-icon svg { width: 1.4rem; height: 1.4rem; }
.et-kpi-label { font-size: .75rem; color: var(--et-muted); font-weight: 600; }
.et-kpi-value { font-size: 1.45rem; font-weight: 800; line-height: 1.15; font-variant-numeric: tabular-nums; }
.et-kpi-hint { font-size: .72rem; color: var(--et-muted); }

.et-tone-navy { --et-tone: var(--et-navy-700); --et-tone-bg: var(--et-navy-100); }
.et-tone-emerald { --et-tone: var(--et-emerald-600); --et-tone-bg: var(--et-emerald-100); }
.et-tone-amber { --et-tone: var(--et-amber); --et-tone-bg: var(--et-amber-bg); }
.et-tone-rose { --et-tone: var(--et-rose); --et-tone-bg: var(--et-rose-bg); }
.et-tone-sky { --et-tone: var(--et-sky); --et-tone-bg: var(--et-sky-bg); }
.et-tone-violet { --et-tone: var(--et-violet); --et-tone-bg: var(--et-violet-bg); }
.dark .et-tone-navy { --et-tone: #a5b8f5; }

.et-ring {
    --value: 0; width: 4.25rem; height: 4.25rem; border-radius: 999px; flex: none; display: grid; place-items: center;
    background: conic-gradient(var(--et-tone, var(--et-emerald-500)) calc(var(--value) * 1%), var(--et-border) 0);
}
.et-ring > span { width: 3.3rem; height: 3.3rem; border-radius: 999px; background: var(--et-surface); display: grid; place-items: center; font-weight: 800; font-size: .9rem; }

.et-progress { height: .5rem; border-radius: 999px; background: var(--et-border); overflow: hidden; }
.et-progress > span { display: block; height: 100%; border-radius: inherit; background: linear-gradient(90deg, var(--et-emerald-500), var(--et-navy-700)); width: calc(var(--value, 0) * 1%); transition: width .4s ease; }
.et-progress.is-over > span { background: linear-gradient(90deg, var(--et-amber), var(--et-rose)); }

/* --------------------------------------------------------------------------
   Badges, buttons, inputs
   -------------------------------------------------------------------------- */

.et-badge { display: inline-flex; align-items: center; gap: .3rem; padding: .15rem .55rem; border-radius: 999px; font-size: .7rem; font-weight: 700; background: var(--et-tone-bg, var(--et-navy-50)); color: var(--et-tone, var(--et-navy-700)); white-space: nowrap; }
.et-dot { width: .5rem; height: .5rem; border-radius: 999px; background: var(--et-tone, var(--et-emerald-500)); display: inline-block; }

.et-btn { display: inline-flex; align-items: center; justify-content: center; gap: .4rem; border-radius: .7rem; padding: .5rem .95rem; font-size: .82rem; font-weight: 700; border: 1px solid var(--et-border); background: var(--et-surface); color: var(--et-text); cursor: pointer; transition: transform .12s ease, box-shadow .15s ease, background .15s ease; }
.et-btn:hover { transform: translateY(-1px); box-shadow: var(--et-shadow); }
.et-btn:disabled { opacity: .55; cursor: not-allowed; transform: none; }
.et-btn svg { width: 1rem; height: 1rem; }
.et-btn-primary { background: linear-gradient(135deg, var(--et-blue-600), var(--et-blue-700)); border-color: transparent; color: #fff; }
.et-btn-accent { background: linear-gradient(135deg, var(--et-emerald-500), var(--et-emerald-600)); border-color: transparent; color: #fff; }
.et-tone-blue { --et-tone: var(--et-blue-600); --et-tone-bg: var(--et-blue-100); }
.dark .et-tone-blue { --et-tone: #93c5fd; }
.et-btn-navy { background: linear-gradient(135deg, var(--et-navy-700), var(--et-navy-900)); border-color: transparent; color: #fff; }
.et-btn-danger { color: var(--et-rose); }
.et-btn-sm { padding: .3rem .6rem; font-size: .74rem; border-radius: .55rem; }
.et-btn-icon { padding: .3rem; border-radius: .5rem; }

.et-segmented { display: inline-flex; padding: .2rem; border-radius: .8rem; background: var(--et-surface-2); border: 1px solid var(--et-border); }
.et-segmented button, .et-segmented a { border: 0; background: transparent; padding: .35rem .8rem; border-radius: .6rem; font-size: .78rem; font-weight: 700; color: var(--et-muted); cursor: pointer; }
.et-segmented .is-active { background: var(--et-surface); color: var(--et-text); box-shadow: var(--et-shadow); }

.et-field { display: flex; flex-direction: column; gap: .3rem; min-width: 11rem; }
.et-label { font-size: .72rem; font-weight: 700; color: var(--et-muted); }
.et-select, .et-input {
    width: 100%; border-radius: .7rem; border: 1px solid var(--et-border); background: var(--et-surface); color: var(--et-text);
    padding: .5rem .75rem; font-size: .84rem; outline: none; transition: border-color .15s, box-shadow .15s;
}
.et-select:focus, .et-input:focus { border-color: var(--et-emerald-500); box-shadow: 0 0 0 3px rgba(16, 185, 129, .18); }

/* --------------------------------------------------------------------------
   Weekly timetable grid
   -------------------------------------------------------------------------- */

.et-tt { width: 100%; border-collapse: separate; border-spacing: .35rem; min-width: 760px; }
.et-tt th { font-size: .72rem; font-weight: 700; color: var(--et-muted); padding: .35rem .25rem; text-align: center; white-space: nowrap; }
.et-tt th.et-tt-day { text-align: start; width: 6.5rem; color: var(--et-text); font-size: .8rem; }
.et-tt td { vertical-align: top; }
.et-tt-cell {
    min-height: 5.25rem; height: 100%; border-radius: .8rem; border: 1.5px dashed var(--et-border); background: var(--et-surface-2);
    padding: .3rem; display: flex; flex-direction: column; gap: .3rem; transition: background .12s, border-color .12s, box-shadow .12s;
}
.et-tt-cell.is-ok { border-color: var(--et-emerald-500); background: var(--et-emerald-50); }
.et-tt-cell.is-warn { border-color: var(--et-amber); background: var(--et-amber-bg); }
.et-tt-cell.is-blocked { border-color: var(--et-rose); background: repeating-linear-gradient(135deg, var(--et-rose-bg) 0 8px, transparent 8px 16px); }
.et-tt-cell.is-over { box-shadow: 0 0 0 3px rgba(16, 185, 129, .35); }
.et-tt-cell.is-holiday { background: repeating-linear-gradient(45deg, var(--et-surface-2) 0 6px, var(--et-border) 6px 7px); }

.et-chip {
    --c: var(--et-navy-700); --cbg: var(--et-navy-50);
    position: relative; border-radius: .65rem; padding: .4rem .5rem .4rem .55rem; background: var(--cbg); color: var(--et-text);
    border-inline-start: 4px solid var(--c); font-size: .72rem; line-height: 1.3; box-shadow: 0 1px 0 rgba(15, 31, 75, .04);
}
.et-chip[draggable="true"] { cursor: grab; }
.et-chip[draggable="true"]:active { cursor: grabbing; }
.et-chip-title { font-weight: 800; color: var(--c); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.et-chip-meta { color: var(--et-muted); font-size: .66rem; display: flex; gap: .35rem; flex-wrap: wrap; margin-top: .1rem; }
.et-chip-actions { position: absolute; inset-inline-end: .25rem; inset-block-start: .25rem; display: flex; gap: .15rem; opacity: 0; transition: opacity .12s; }
.et-chip:hover .et-chip-actions { opacity: 1; }
.et-chip-actions button, .et-chip-actions a { border: 0; background: var(--et-surface); border-radius: .4rem; width: 1.3rem; height: 1.3rem; display: grid; place-items: center; cursor: pointer; color: var(--et-muted); font-size: .7rem; }
.et-chip-actions button:hover { color: var(--et-rose); }
.et-chip-actions a:hover { color: var(--et-emerald-600); }
.et-chip.type-CM { --c: var(--et-cm); --cbg: var(--et-cm-bg); }
.et-chip.type-TD { --c: var(--et-td); --cbg: var(--et-td-bg); }
.et-chip.type-TP { --c: var(--et-tp); --cbg: var(--et-tp-bg); }
.et-chip.is-draft { background-image: repeating-linear-gradient(135deg, transparent 0 10px, rgba(217, 119, 6, .08) 10px 20px); }
.et-chip.is-fixed { opacity: .62; filter: grayscale(.4); }
.et-chip.is-rejected { opacity: .4; text-decoration: line-through; }
.et-chip.has-conflict { box-shadow: 0 0 0 2px var(--et-rose); }

.et-legend { display: flex; flex-wrap: wrap; gap: .8rem; font-size: .72rem; color: var(--et-muted); }
.et-legend span { display: inline-flex; align-items: center; gap: .35rem; }
.et-legend i { width: .8rem; height: .8rem; border-radius: .25rem; display: inline-block; background: var(--cbg); border-inline-start: 3px solid var(--c); }

.et-tray { display: flex; flex-direction: column; gap: .5rem; max-height: 70vh; overflow-y: auto; padding-inline-end: .2rem; }
.et-tray-item { border: 1px solid var(--et-border); border-radius: .8rem; padding: .55rem .65rem; background: var(--et-surface); }
.et-tray-item-head { display: flex; justify-content: space-between; align-items: center; gap: .4rem; font-size: .78rem; font-weight: 700; }
.et-tray-types { display: flex; gap: .35rem; margin-top: .45rem; flex-wrap: wrap; }
.et-tray-type { cursor: grab; user-select: none; }
.et-tray-type.is-done { opacity: .45; cursor: default; }

/* --------------------------------------------------------------------------
   Lists, tables, empty states
   -------------------------------------------------------------------------- */

.et-list { display: flex; flex-direction: column; }
.et-list-item { display: flex; align-items: center; justify-content: space-between; gap: .75rem; padding: .7rem 1.25rem; border-bottom: 1px solid var(--et-border); font-size: .84rem; }
.et-list-item:last-child { border-bottom: 0; }

.et-table { width: 100%; border-collapse: collapse; font-size: .82rem; }
.et-table th { text-align: start; font-size: .7rem; text-transform: uppercase; letter-spacing: .05em; color: var(--et-muted); padding: .65rem 1rem; background: var(--et-surface-2); border-bottom: 1px solid var(--et-border); }
.et-table td { padding: .65rem 1rem; border-bottom: 1px solid var(--et-border); }
.et-table tr:last-child td { border-bottom: 0; }
.et-table tr:hover td { background: var(--et-surface-2); }

.et-empty { text-align: center; padding: 2.5rem 1rem; color: var(--et-muted); font-size: .85rem; }
.et-empty svg { width: 2.5rem; height: 2.5rem; margin: 0 auto .6rem; opacity: .5; }

.et-alert { border-radius: var(--et-radius-sm); padding: .8rem 1rem; font-size: .84rem; border: 1px solid; }
.et-alert-danger { background: var(--et-rose-bg); border-color: color-mix(in srgb, var(--et-rose) 35%, transparent); color: var(--et-rose); }
.et-alert-info { background: var(--et-sky-bg); border-color: color-mix(in srgb, var(--et-sky) 35%, transparent); color: var(--et-sky); }
.et-alert-warning { background: var(--et-amber-bg); border-color: color-mix(in srgb, var(--et-amber) 35%, transparent); color: var(--et-amber); }

.et-spinner { width: 1.1rem; height: 1.1rem; border-radius: 999px; border: 2px solid var(--et-border); border-top-color: var(--et-emerald-500); animation: et-spin .8s linear infinite; display: inline-block; }
@keyframes et-spin { to { transform: rotate(360deg); } }

/* --------------------------------------------------------------------------
   Heatmap & calendar
   -------------------------------------------------------------------------- */

.et-heat { --level: 0; border-radius: .55rem; text-align: center; padding: .55rem .25rem; font-size: .74rem; font-weight: 700; font-variant-numeric: tabular-nums;
    background: color-mix(in srgb, var(--et-emerald-500) calc(var(--level) * 0.85%), var(--et-surface-2)); color: var(--et-text); }
.et-heat.is-hot { background: color-mix(in srgb, var(--et-navy-700) calc(var(--level) * 0.9%), var(--et-surface-2)); color: #fff; }

.et-cal { display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); gap: .35rem; }
.et-cal-head { font-size: .7rem; font-weight: 700; color: var(--et-muted); text-align: center; padding: .3rem 0; }
.et-cal-day { min-height: 6.2rem; border-radius: .75rem; border: 1px solid var(--et-border); background: var(--et-surface); padding: .35rem; display: flex; flex-direction: column; gap: .2rem; }
.et-cal-day.is-other { opacity: .4; }
.et-cal-day.is-today { border-color: var(--et-emerald-500); box-shadow: 0 0 0 2px rgba(16, 185, 129, .25); }
.et-cal-day.is-weekend { background: var(--et-surface-2); }
.et-cal-num { font-size: .75rem; font-weight: 800; }
.et-cal-event { font-size: .64rem; font-weight: 700; color: #fff; border-radius: .4rem; padding: .12rem .35rem; background: var(--ev, var(--et-navy-700)); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.et-cal-sem { font-size: .6rem; color: var(--et-emerald-600); font-weight: 700; }
@media (max-width: 640px) { .et-cal-day { min-height: 3.4rem; } .et-cal-event { font-size: 0; height: .35rem; padding: 0; } }

/* Language switcher in the topbar */
.et-lang { display: inline-flex; border: 1px solid var(--et-border); border-radius: .6rem; overflow: hidden; margin-inline: .5rem; }
.et-lang a { padding: .25rem .55rem; font-size: .72rem; font-weight: 800; color: var(--et-muted); }
.et-lang a.is-active { background: var(--et-emerald-600); color: #fff; }

@media print {
    .fi-sidebar, .fi-topbar, .et-no-print { display: none !important; }
    .et-card { box-shadow: none; }
}