/* ==========================================================================
   EduTime Smart Pro — public website layer (extends edutime-theme.css).
   No build step. Logical properties ⇒ identical rules for RTL and LTR.
   ========================================================================== */

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body.s-body { margin: 0; background: var(--et-bg); color: var(--et-text); font-size: 15px; line-height: 1.6; -webkit-font-smoothing: antialiased; }
html[lang="ar"] body.s-body { font-family: var(--et-font-ar); }
html[lang="fr"] body.s-body { font-family: var(--et-font-fr); }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
h1, h2, h3, h4 { margin: 0; line-height: 1.25; letter-spacing: -.01em; }
p { margin: 0; }
:focus-visible { outline: 3px solid color-mix(in srgb, var(--et-blue-600) 55%, transparent); outline-offset: 2px; border-radius: .4rem; }

.s-container { width: 100%; max-width: 76rem; margin-inline: auto; padding-inline: 1.25rem; }
.s-skip { position: absolute; inset-inline-start: 1rem; top: -3rem; z-index: 100; background: var(--et-blue-600); color: #fff; padding: .5rem 1rem; border-radius: .6rem; }
.s-skip:focus { top: 1rem; }
.s-sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.s-icon { width: 1.15rem; height: 1.15rem; flex: none; }

/* ---------------------------------------------------------------- navbar */
.s-topbar { background: var(--et-navy-800); color: rgba(226, 236, 246, .85); font-size: .78rem; }
.s-topbar .s-container { display: flex; justify-content: space-between; align-items: center; gap: 1rem; min-height: 2.2rem; flex-wrap: wrap; }
.s-topbar a:hover { color: #fff; }

.s-nav { position: sticky; top: 0; z-index: 50; background: color-mix(in srgb, var(--et-surface) 88%, transparent); backdrop-filter: saturate(1.5) blur(12px); border-bottom: 1px solid var(--et-border); }
.s-nav-inner { display: flex; align-items: center; justify-content: space-between; gap: 1rem; min-height: 4.25rem; }
.s-brand { display: flex; align-items: center; gap: .75rem; min-width: 0; }
.s-brand-mark { width: 2.6rem; height: 2.6rem; border-radius: .85rem; display: grid; place-items: center; flex: none; font-weight: 800; color: #fff; font-size: .9rem;
    background: linear-gradient(135deg, var(--et-navy-800), var(--et-blue-600)); box-shadow: 0 6px 16px -6px rgba(37, 99, 235, .55); overflow: hidden; }
.s-brand-mark img { width: 100%; height: 100%; object-fit: cover; }
.s-brand-text { display: flex; flex-direction: column; min-width: 0; }
.s-brand-name { font-weight: 800; font-size: .98rem; color: var(--et-text); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.s-brand-sub { font-size: .72rem; color: var(--et-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.s-menu { display: none; align-items: center; gap: .25rem; list-style: none; margin: 0; padding: 0; }
.s-menu a { display: inline-flex; align-items: center; gap: .4rem; padding: .5rem .8rem; border-radius: .7rem; font-size: .88rem; font-weight: 600; color: var(--et-muted); transition: background .15s, color .15s; }
.s-menu a:hover { background: var(--et-surface-2); color: var(--et-text); }
.s-menu a[aria-current="page"] { color: var(--et-blue-600); background: var(--et-blue-50); }
.s-actions { display: flex; align-items: center; gap: .5rem; }
.s-icon-btn { width: 2.4rem; height: 2.4rem; border-radius: .75rem; border: 1px solid var(--et-border); background: var(--et-surface); color: var(--et-text); display: inline-grid; place-items: center; cursor: pointer; }
.s-icon-btn:hover { background: var(--et-surface-2); }
.s-lang { display: inline-flex; border: 1px solid var(--et-border); border-radius: .75rem; overflow: hidden; }
.s-lang a { padding: .45rem .7rem; font-size: .78rem; font-weight: 800; color: var(--et-muted); }
.s-lang a.is-active { background: var(--et-navy-800); color: #fff; }
.s-login-btn { display: none; }
.s-burger { display: inline-grid; }
.s-mobile { border-top: 1px solid var(--et-border); padding: .75rem 0 1rem; }
.s-mobile a { display: flex; align-items: center; gap: .6rem; padding: .7rem .9rem; border-radius: .75rem; font-weight: 600; }
.s-mobile a:hover, .s-mobile a[aria-current="page"] { background: var(--et-surface-2); color: var(--et-blue-600); }
@media (min-width: 1024px) {
    .s-menu { display: flex; }
    .s-login-btn { display: inline-flex; }
    .s-burger, .s-mobile { display: none !important; }
}

/* ---------------------------------------------------------------- hero */
.s-hero { position: relative; overflow: hidden; color: #fff;
    background: radial-gradient(900px 420px at 85% -10%, rgba(37, 99, 235, .55), transparent 60%),
                radial-gradient(700px 380px at -5% 110%, rgba(16, 185, 129, .35), transparent 60%),
                linear-gradient(160deg, var(--et-navy-800), var(--et-navy-950)); }
.s-hero::after { content: ""; position: absolute; inset: 0; opacity: .14; pointer-events: none;
    background-image: linear-gradient(rgba(255,255,255,.18) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.18) 1px, transparent 1px);
    background-size: 44px 44px; mask-image: radial-gradient(ellipse at 70% 30%, #000 20%, transparent 70%); }
.s-hero-inner { position: relative; z-index: 1; display: grid; gap: 2.5rem; padding-block: 4rem 4.5rem; align-items: center; }
@media (min-width: 1024px) { .s-hero-inner { grid-template-columns: 1.15fr .85fr; padding-block: 5.5rem 6rem; } }
.s-pill { display: inline-flex; align-items: center; gap: .5rem; padding: .35rem .85rem; border-radius: 999px; background: rgba(255, 255, 255, .1); border: 1px solid rgba(255, 255, 255, .18); font-size: .8rem; font-weight: 700; }
.s-pill .et-dot { --et-tone: var(--et-emerald-400); box-shadow: 0 0 0 4px rgba(52, 211, 153, .25); }
.s-hero h1 { font-size: clamp(1.9rem, 4.2vw, 3.1rem); font-weight: 800; margin-top: 1.1rem; letter-spacing: -.025em; }
.s-hero h1 em { font-style: normal; background: linear-gradient(90deg, #93c5fd, #6ee7b7); -webkit-background-clip: text; background-clip: text; color: transparent; }
.s-hero-lead { margin-top: 1rem; font-size: 1.05rem; color: rgba(226, 236, 246, .82); max-width: 38rem; }
.s-hero-ctas { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 1.9rem; }
.s-btn { display: inline-flex; align-items: center; justify-content: center; gap: .5rem; padding: .8rem 1.3rem; border-radius: .9rem; font-weight: 700; font-size: .92rem; border: 1px solid transparent; cursor: pointer; transition: transform .15s, box-shadow .15s, background .15s; }
.s-btn:hover { transform: translateY(-1px); }
.s-btn-blue { background: var(--et-blue-600); color: #fff; box-shadow: 0 12px 24px -12px rgba(37, 99, 235, .8); }
.s-btn-blue:hover { background: var(--et-blue-700); }
.s-btn-ghost { background: rgba(255, 255, 255, .08); color: #fff; border-color: rgba(255, 255, 255, .25); }
.s-btn-ghost:hover { background: rgba(255, 255, 255, .16); }
.s-btn-outline { background: var(--et-surface); color: var(--et-text); border-color: var(--et-border); }
.s-btn-outline:hover { border-color: var(--et-blue-600); color: var(--et-blue-600); }
.s-btn-accent { background: var(--et-emerald-500); color: #fff; }
.s-btn-sm { padding: .5rem .85rem; font-size: .82rem; border-radius: .7rem; }

.s-hero-panel { background: rgba(255, 255, 255, .07); border: 1px solid rgba(255, 255, 255, .16); border-radius: 1.5rem; padding: 1.4rem; backdrop-filter: blur(8px); }
.s-hero-panel h2 { font-size: .95rem; font-weight: 800; }
.s-live-grid { display: grid; grid-template-columns: 1fr 1fr; gap: .8rem; margin-top: 1rem; }
.s-live { background: rgba(255, 255, 255, .08); border-radius: 1rem; padding: 1rem; }
.s-live b { display: block; font-size: 1.8rem; font-weight: 800; font-variant-numeric: tabular-nums; }
.s-live span { font-size: .78rem; color: rgba(226, 236, 246, .78); }
.s-hero-panel .s-quick { margin-top: 1rem; }

/* ---------------------------------------------------------------- sections */
.s-section { padding-block: 4rem; }
.s-section-alt { background: var(--et-surface); border-block: 1px solid var(--et-border); }
.s-section-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 1rem; flex-wrap: wrap; margin-bottom: 2rem; }
.s-eyebrow { font-size: .75rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; color: var(--et-blue-600); }
.s-section-head h2 { font-size: clamp(1.4rem, 2.6vw, 2rem); font-weight: 800; margin-top: .3rem; }
.s-section-head p { color: var(--et-muted); margin-top: .4rem; max-width: 40rem; }

.s-stats { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; margin-top: -2.6rem; position: relative; z-index: 2; }
@media (min-width: 768px) { .s-stats { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
@media (min-width: 1100px) { .s-stats { grid-template-columns: repeat(6, minmax(0, 1fr)); } }
.s-stat { background: var(--et-surface); border: 1px solid var(--et-border); border-radius: 1.1rem; padding: 1.1rem 1.2rem; box-shadow: var(--et-shadow); }
.s-stat b { display: block; font-size: 1.6rem; font-weight: 800; color: var(--et-navy-800); font-variant-numeric: tabular-nums; }
.dark .s-stat b { color: #e5ecf8; }
.s-stat span { color: var(--et-muted); font-size: .8rem; font-weight: 600; }

.s-cards { display: grid; gap: 1.1rem; grid-template-columns: repeat(1, minmax(0, 1fr)); }
@media (min-width: 640px) { .s-cards { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (min-width: 1024px) { .s-cards-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); } .s-cards-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); } }
.s-card { background: var(--et-surface); border: 1px solid var(--et-border); border-radius: 1.2rem; padding: 1.4rem; box-shadow: var(--et-shadow); display: flex; flex-direction: column; gap: .6rem; transition: transform .18s, box-shadow .18s, border-color .18s; }
a.s-card:hover, .s-card.is-link:hover { transform: translateY(-3px); box-shadow: var(--et-shadow-lg); border-color: color-mix(in srgb, var(--et-blue-600) 40%, var(--et-border)); }
.s-card h3 { font-size: 1.02rem; font-weight: 800; }
.s-card p { color: var(--et-muted); font-size: .9rem; }
.s-card-icon { width: 2.9rem; height: 2.9rem; border-radius: .95rem; display: grid; place-items: center; background: var(--et-tone-bg, var(--et-blue-100)); color: var(--et-tone, var(--et-blue-600)); }
.s-card-icon svg { width: 1.45rem; height: 1.45rem; }
.s-card-foot { margin-top: auto; padding-top: .4rem; display: flex; align-items: center; gap: .35rem; font-size: .85rem; font-weight: 700; color: var(--et-blue-600); }

.s-portal { position: relative; overflow: hidden; }
.s-portal::before { content: ""; position: absolute; inset-inline-end: -3rem; top: -3rem; width: 9rem; height: 9rem; border-radius: 999px; background: var(--et-tone-bg, var(--et-blue-100)); opacity: .6; }
.s-portal > * { position: relative; }

.s-announce { display: flex; flex-direction: column; gap: .55rem; }
.s-announce time { font-size: .76rem; color: var(--et-muted); font-weight: 600; }
.s-announce h3 { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.s-announce p { display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }

.s-events { display: flex; flex-direction: column; gap: .7rem; }
.s-event { display: flex; gap: .9rem; align-items: center; background: var(--et-surface); border: 1px solid var(--et-border); border-radius: 1rem; padding: .8rem 1rem; }
.s-event-date { flex: none; width: 3.4rem; text-align: center; border-radius: .8rem; padding: .35rem 0; color: #fff; background: var(--ev, var(--et-navy-800)); }
.s-event-date b { display: block; font-size: 1.25rem; line-height: 1.1; }
.s-event-date span { font-size: .66rem; text-transform: uppercase; font-weight: 700; }

/* ---------------------------------------------------------------- page header */
.s-page-head { color: #fff; background: radial-gradient(700px 260px at 90% -20%, rgba(37, 99, 235, .5), transparent 60%), linear-gradient(160deg, var(--et-navy-800), var(--et-navy-950)); }
.s-page-head .s-container { padding-block: 2.6rem 3.2rem; }
.s-page-head h1 { font-size: clamp(1.6rem, 3.2vw, 2.3rem); font-weight: 800; }
.s-page-head p { margin-top: .5rem; color: rgba(226, 236, 246, .82); max-width: 44rem; }
.s-crumbs { display: flex; flex-wrap: wrap; gap: .4rem; font-size: .8rem; color: rgba(226, 236, 246, .7); margin-bottom: .8rem; list-style: none; padding: 0; }
.s-crumbs li + li::before { content: "/"; margin-inline-end: .4rem; opacity: .6; }
.s-crumbs a:hover { color: #fff; }
.s-page-body { margin-top: -1.6rem; padding-bottom: 4rem; position: relative; z-index: 2; }

/* ---------------------------------------------------------------- forms & filters */
.s-filters { background: var(--et-surface); border: 1px solid var(--et-border); border-radius: 1.2rem; padding: 1.1rem; box-shadow: var(--et-shadow); display: grid; gap: .85rem; grid-template-columns: repeat(1, minmax(0, 1fr)); }
@media (min-width: 640px) { .s-filters { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (min-width: 1024px) { .s-filters-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); } .s-filters-5 { grid-template-columns: 2fr 1fr 1fr 1fr auto; } }
.s-field { display: flex; flex-direction: column; gap: .35rem; }
.s-field label { font-size: .74rem; font-weight: 700; color: var(--et-muted); display: flex; justify-content: space-between; gap: .5rem; }
.s-field label small { color: var(--et-blue-600); font-weight: 700; }
.s-input, .s-select { width: 100%; height: 2.85rem; border-radius: .8rem; border: 1px solid var(--et-border); background: var(--et-surface); color: var(--et-text); padding: 0 .9rem; font: inherit; font-size: .9rem; }
.s-select:disabled { opacity: .55; cursor: not-allowed; background: var(--et-surface-2); }
.s-input:focus, .s-select:focus { outline: none; border-color: var(--et-blue-600); box-shadow: 0 0 0 4px rgba(37, 99, 235, .15); }
.s-check { display: inline-flex; align-items: center; gap: .5rem; font-size: .85rem; font-weight: 600; height: 2.85rem; }

.s-toolbar { display: flex; justify-content: space-between; align-items: center; gap: .75rem; flex-wrap: wrap; margin-block: 1.4rem 1rem; }
.s-tabs { display: inline-flex; padding: .25rem; background: var(--et-surface); border: 1px solid var(--et-border); border-radius: .9rem; }
.s-tabs button { border: 0; background: transparent; padding: .5rem 1rem; border-radius: .7rem; font: inherit; font-size: .85rem; font-weight: 700; color: var(--et-muted); cursor: pointer; }
.s-tabs button[aria-selected="true"] { background: var(--et-navy-800); color: #fff; }
.s-days { display: flex; gap: .4rem; overflow-x: auto; padding-bottom: .2rem; }
.s-days button { flex: none; border: 1px solid var(--et-border); background: var(--et-surface); border-radius: .8rem; padding: .45rem .9rem; font: inherit; font-size: .82rem; font-weight: 700; color: var(--et-muted); cursor: pointer; }
.s-days button[aria-pressed="true"] { border-color: var(--et-blue-600); color: var(--et-blue-600); background: var(--et-blue-50); }
.s-days button .is-today { display: inline-block; width: .45rem; height: .45rem; border-radius: 999px; background: var(--et-emerald-500); margin-inline-start: .35rem; vertical-align: middle; }

.s-day-list { display: flex; flex-direction: column; gap: .7rem; }
.s-session { display: grid; grid-template-columns: 5.2rem 1fr; gap: 1rem; background: var(--et-surface); border: 1px solid var(--et-border); border-radius: 1rem; padding: .9rem 1rem; border-inline-start: 4px solid var(--c, var(--et-navy-800)); }
.s-session.type-CM { --c: var(--et-cm); }
.s-session.type-TD { --c: var(--et-td); }
.s-session.type-TP { --c: var(--et-tp); }
.s-session-time { font-weight: 800; font-variant-numeric: tabular-nums; font-size: .9rem; }
.s-session-time small { display: block; color: var(--et-muted); font-weight: 600; }
.s-session h4 { font-size: .95rem; font-weight: 800; }
.s-session-meta { display: flex; flex-wrap: wrap; gap: .35rem .9rem; color: var(--et-muted); font-size: .8rem; margin-top: .25rem; }

.s-empty { text-align: center; background: var(--et-surface); border: 1px dashed var(--et-border); border-radius: 1.2rem; padding: 3rem 1.5rem; }
.s-empty-icon { width: 3.6rem; height: 3.6rem; margin: 0 auto 1rem; border-radius: 1.1rem; display: grid; place-items: center; background: var(--et-blue-50); color: var(--et-blue-600); }
.s-empty-icon svg { width: 1.8rem; height: 1.8rem; }
.s-empty h3 { font-size: 1.05rem; font-weight: 800; }
.s-empty p { color: var(--et-muted); margin-top: .4rem; max-width: 30rem; margin-inline: auto; font-size: .9rem; }

.s-person { display: flex; align-items: center; gap: .85rem; }
.s-avatar { width: 2.9rem; height: 2.9rem; border-radius: 999px; display: grid; place-items: center; flex: none; font-weight: 800; color: var(--et-blue-600); background: var(--et-blue-100); }
.s-status { display: inline-flex; align-items: center; gap: .4rem; font-size: .76rem; font-weight: 700; }
.s-status::before { content: ""; width: .55rem; height: .55rem; border-radius: 999px; background: var(--s, var(--et-emerald-500)); }
.s-status.is-busy { --s: var(--et-rose); color: var(--et-rose); }
.s-status.is-free { color: var(--et-emerald-600); }
.s-tags { display: flex; flex-wrap: wrap; gap: .35rem; }

.s-prose { font-size: 1rem; line-height: 1.85; color: var(--et-text); }
.s-prose p + p { margin-top: 1rem; }
.s-prose a { color: var(--et-blue-600); text-decoration: underline; }

.s-pagination nav { display: flex; justify-content: center; margin-top: 2rem; }
.s-pager { display: flex; gap: .4rem; justify-content: center; margin-top: 2rem; flex-wrap: wrap; }
.s-pager a, .s-pager span { min-width: 2.4rem; height: 2.4rem; display: inline-grid; place-items: center; padding: 0 .7rem; border-radius: .7rem; border: 1px solid var(--et-border); background: var(--et-surface); font-weight: 700; font-size: .85rem; }
.s-pager .is-current { background: var(--et-navy-800); color: #fff; border-color: var(--et-navy-800); }
.s-pager .is-disabled { opacity: .45; }

/* ---------------------------------------------------------------- footer */
.s-footer { background: var(--et-navy-950); color: rgba(226, 236, 246, .72); padding-top: 3.5rem; margin-top: 0; font-size: .88rem; }
.s-footer-grid { display: grid; gap: 2rem; grid-template-columns: repeat(1, minmax(0, 1fr)); }
@media (min-width: 768px) { .s-footer-grid { grid-template-columns: 1.4fr 1fr 1fr 1.2fr; } }
.s-footer h3 { color: #fff; font-size: .9rem; font-weight: 800; margin-bottom: .9rem; }
.s-footer ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: .55rem; }
.s-footer a:hover { color: #fff; }
.s-footer .s-brand-name { color: #fff; }
.s-footer .s-brand-sub { color: rgba(226, 236, 246, .6); }
.s-footer-bottom { border-top: 1px solid rgba(255, 255, 255, .08); margin-top: 2.5rem; padding-block: 1.2rem; display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; font-size: .8rem; }

/* print: timetable only */
@media print {
    .s-topbar, .s-nav, .s-footer, .s-filters, .s-toolbar, .s-no-print { display: none !important; }
    .s-page-head { background: none; color: #000; }
    .s-page-body { margin: 0; }
    body.s-body { background: #fff; }
}