/* ================================================================
   FBSU Anti-Drug Campaign — جامعة فهد بن سلطان
   Color palette derived from FBSU official visual identity:
     Primary teal  : #00796B  (FBSU deep teal)
     Accent teal   : #009688  (FBSU mid teal)
     Light teal    : #4DB6AC  (highlight / hover)
     Gold accent   : #C8A84B  (FBSU logo gold)
     Dark bg       : #0D1117
================================================================ */

:root {
  --ink:       #0d1117;
  --panel:     #131920;
  --panel-2:   #18212b;
  --line:      #1e2d38;
  --primary:   #00796b;
  --primary-d: #005f56;
  --primary-l: #4db6ac;
  --gold:      #c8a84b;
  --txt:       #e8f5f3;
  --muted:     #7fb3ad;
  --muted-2:   #4d8880;
  --radius:    16px;
  --maxw:      1180px;
  --shadow:    0 24px 60px -22px rgba(0,0,0,.75);
  --font:      "Cairo", system-ui, "Segoe UI", Tahoma, sans-serif;
}

*{box-sizing:border-box}
html,body{margin:0}
body{
  background:
    radial-gradient(900px 520px at 80% -10%, rgba(0,121,107,.18), transparent 60%),
    radial-gradient(700px 500px at 10% 110%, rgba(0,121,107,.10), transparent 60%),
    var(--ink);
  color:var(--txt);
  font-family:var(--font);
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
  min-height:100dvh;
}

.skip{
  position:absolute;right:-9999px;top:8px;background:var(--primary);color:#fff;
  padding:8px 14px;border-radius:8px;z-index:50;
}
.skip:focus{right:12px}

a{color:inherit;text-decoration:none}
button{font-family:inherit}

/* ── Topbar ─────────────────────────────────────────── */
.topbar{
  max-width:var(--maxw);margin:0 auto;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:14px 22px;flex-wrap:wrap;
  border-bottom:1px solid var(--line);
  background:rgba(13,17,23,.90);
  backdrop-filter:blur(8px);
  position:sticky;top:0;z-index:20;
}

.brand{display:flex;align-items:center;gap:14px}
.brand__logo{width:46px;height:46px;object-fit:contain;
  filter:drop-shadow(0 2px 6px rgba(0,0,0,.5))}
.brand__logo--fbsu{width:130px;height:auto;filter:none}
.brand__txt{display:flex;flex-direction:column;line-height:1.25}
.brand__txt strong{font-weight:900;font-size:1.05rem;letter-spacing:.2px}
.brand__txt span{color:var(--muted);font-size:.82rem}

.controls{display:flex;align-items:center;gap:12px;flex-wrap:wrap}

.seg{display:inline-flex;background:var(--panel);border:1px solid var(--line);
  border-radius:999px;padding:4px}
.seg__btn{
  border:0;background:transparent;color:var(--muted);
  padding:8px 16px;border-radius:999px;cursor:pointer;font-weight:700;font-size:.86rem;
  transition:.18s ease;
}
.seg__btn.is-on{background:var(--primary);color:#fff;box-shadow:0 6px 16px -6px var(--primary)}
.seg__btn:not(.is-on):hover{color:var(--txt)}

.btn{
  display:inline-flex;align-items:center;gap:8px;cursor:pointer;
  border:1px solid var(--line);background:var(--panel);color:var(--txt);
  padding:9px 15px;border-radius:999px;font-weight:700;font-size:.85rem;
  transition:.18s ease;
}
.btn:hover{border-color:var(--primary);background:var(--panel-2)}
.btn .ic{color:var(--primary);font-size:.9em}
.btn[aria-pressed="true"]{background:var(--primary);border-color:var(--primary);color:#fff}
.btn[aria-pressed="true"] .ic{color:#fff}

/* ── Viewer ──────────────────────────────────────────── */
.viewer{
  max-width:var(--maxw);margin:20px auto 0;padding:0 22px;
  display:flex;align-items:center;justify-content:center;gap:14px;
}
.stage-wrap{
  flex:1;display:flex;align-items:center;justify-content:center;
  min-height:0;order:1;
}
.nav--prev{order:0}
.nav--next{order:2}

.poster{
  position:relative;margin:0;display:inline-flex;
  border-radius:var(--radius);overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  background:#000;
  max-width:100%;
}
.poster img{
  display:block;max-width:100%;max-height:74vh;width:auto;height:auto;
  transition:opacity .28s ease;
}
.poster.is-loading img{opacity:.25}
.poster__spin{
  position:absolute;inset:0;margin:auto;width:34px;height:34px;
  border:3px solid rgba(255,255,255,.18);border-top-color:var(--primary);
  border-radius:50%;opacity:0;pointer-events:none;
  animation:spin .8s linear infinite;
}
.poster.is-loading .poster__spin{opacity:1}
@keyframes spin{to{transform:rotate(360deg)}}

/* Navigation buttons — SVG chevrons, no font-size tricks */
.nav{
  flex:0 0 auto;width:52px;height:52px;border-radius:50%;
  border:2px solid var(--primary);background:rgba(0,121,107,.15);
  color:var(--txt);cursor:pointer;
  display:grid;place-items:center;
  transition:background .18s ease,transform .15s ease,box-shadow .18s ease;
  backdrop-filter:blur(6px);
}
.nav:hover{
  background:var(--primary);border-color:var(--primary-l);
  transform:scale(1.08);
  box-shadow:0 0 18px rgba(0,121,107,.55);
}
.nav:active{transform:scale(.95)}
.nav svg{pointer-events:none}

/* ── Meta ────────────────────────────────────────────── */
.meta{max-width:var(--maxw);margin:18px auto 0;padding:0 22px;text-align:center}
.meta__eyebrow{
  margin:0;color:var(--primary-l);font-weight:700;font-size:.82rem;letter-spacing:1px;
}
.meta__slogan{
  margin:6px 0 14px;font-weight:900;font-size:clamp(1.3rem,3.6vw,2.1rem);
  line-height:1.3;
}
.meta__tools{display:flex;gap:10px;justify-content:center;flex-wrap:wrap}

/* ── Report bar ──────────────────────────────────────── */
.report{
  max-width:var(--maxw);margin:30px auto 0;padding:24px 22px 26px;
  background:linear-gradient(180deg,var(--panel),var(--panel-2));
  border:1px solid var(--line);border-radius:22px;
}
.report__head{text-align:center;margin-bottom:18px}
.report__head h2{margin:0 0 4px;font-weight:900;font-size:clamp(1.1rem,2.6vw,1.45rem)}
.report__head h2::before{
  content:"";display:inline-block;width:30px;height:3px;background:var(--primary);
  border-radius:2px;vertical-align:middle;margin-inline-end:10px;
}
.report__head p{margin:0;color:var(--muted);font-size:.92rem}

.report__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.rcard{
  display:flex;flex-direction:column;gap:6px;justify-content:center;
  background:var(--ink);border:1px solid var(--line);border-radius:14px;
  padding:16px 14px;min-height:104px;transition:.18s ease;text-align:center;
}
.rcard:hover{
  border-color:var(--primary);transform:translateY(-3px);
  box-shadow:0 16px 30px -18px rgba(0,121,107,.6);
}
.rcard__big{font-weight:900;font-size:1.7rem;color:#fff;letter-spacing:1px;direction:ltr}
.rcard__big--mail{font-size:1.02rem;color:var(--primary-l);word-break:break-all}
.rcard__txt{color:var(--muted);font-size:.84rem;line-height:1.4}

.report__note{margin:16px 0 0;text-align:center;color:var(--muted-2);font-size:.82rem}

/* ── Filmstrip ───────────────────────────────────────── */
.filmstrip{
  max-width:var(--maxw);margin:24px auto 0;padding:8px 22px 4px;
  display:flex;gap:10px;overflow-x:auto;scroll-snap-type:x mandatory;
  scrollbar-width:thin;scrollbar-color:var(--line) transparent;
}
.filmstrip::-webkit-scrollbar{height:8px}
.filmstrip::-webkit-scrollbar-thumb{background:var(--line);border-radius:8px}

.thumb{
  flex:0 0 auto;scroll-snap-align:center;cursor:pointer;position:relative;
  border-radius:10px;overflow:hidden;border:2px solid transparent;
  background:#000;transition:.16s ease;
}
.thumb img{display:block;height:84px;width:auto;opacity:.62;transition:.16s ease}
.thumb:hover img{opacity:.9}
.thumb.is-on{border-color:var(--primary)}
.thumb.is-on img{opacity:1}
.thumb__n{
  position:absolute;inset-inline-start:6px;top:5px;
  background:rgba(0,0,0,.6);color:#fff;font-size:.68rem;font-weight:700;
  padding:1px 6px;border-radius:6px;
}

/* ── Footer ──────────────────────────────────────────── */
.foot{
  max-width:var(--maxw);margin:34px auto 0;padding:22px;text-align:center;
  border-top:1px solid var(--line);
}
.foot__brand{margin-bottom:12px}
.foot__logo{height:40px;width:auto;opacity:.85}
.foot__social{
  display:flex;gap:10px;justify-content:center;flex-wrap:wrap;
  color:var(--muted);font-size:.86rem;font-weight:600;direction:ltr;
}
.foot__credit{margin:10px 0 0;color:var(--muted-2);font-size:.76rem}

/* ── Responsive ──────────────────────────────────────── */
@media (max-width:760px){
  .topbar{padding:10px 14px}
  .brand__logo--fbsu{width:100px}
  .viewer{padding:0 10px;gap:6px}
  .nav{width:42px;height:42px}
  .nav svg{width:18px;height:18px}
  .poster img{max-height:66vh}
  .report__grid{grid-template-columns:repeat(2,1fr)}
  .btn .lbl,.seg__btn{font-size:.8rem}
}
@media (max-width:430px){
  .report__grid{grid-template-columns:1fr}
  .brand__txt span{display:none}
  .brand__logo--fbsu{width:80px}
}

@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms!important;transition-duration:.001ms!important}
}

:focus-visible{outline:3px solid var(--primary);outline-offset:2px;border-radius:6px}