:root {
  color-scheme: dark;
  --ink: #f7f2ea;
  --muted: #d6cec1;
  --soft: rgba(247, 242, 234, .72);
  --paper: #f7f2ea;
  --charcoal: #181611;
  --charcoal-2: #2a251f;
  --smoke: rgba(25, 22, 18, .76);
  --line: rgba(255, 255, 255, .16);
  --line-strong: rgba(255, 255, 255, .28);
  --green: #a8b58a;
  --sage: #68745b;
  --draft-blue: #7da4a6;
  --danger: #f0a08e;
  --ok: #b8d69c;
  --shadow: 0 32px 80px rgba(0, 0, 0, .42);
  font-family: 'IBM Plex Sans Arabic', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

* { box-sizing: border-box; }
html { min-height: 100%; scroll-behavior: smooth; }
body {
  min-height: 100vh;
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 12% 12%, rgba(168, 181, 138, .18), transparent 28rem),
    radial-gradient(circle at 88% 88%, rgba(125, 164, 166, .14), transparent 28rem),
    #0d0c0a;
  overflow-x: hidden;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(9, 8, 6, .62), rgba(9, 8, 6, .20), rgba(9, 8, 6, .70)),
    url('/assets/poster.png') center / cover no-repeat;
  filter: blur(12px) saturate(.8) brightness(.64);
  transform: scale(1.05);
  z-index: -2;
}

body::after {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: linear-gradient(to bottom, rgba(0,0,0,.4), transparent 72%);
  z-index: -1;
  pointer-events: none;
}

.ambient {
  position: fixed;
  inset: auto auto 8vh 5vw;
  width: 38vw;
  height: 38vw;
  max-width: 520px;
  max-height: 520px;
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 50%;
  opacity: .18;
  pointer-events: none;
  z-index: -1;
}

.ambient::before,
.ambient::after {
  content: '';
  position: absolute;
  inset: 11%;
  border: 1px dashed rgba(255,255,255,.22);
  border-radius: 50%;
}
.ambient::after { inset: 28%; transform: rotate(18deg); }

.page-shell {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 32px 0;
}

.hero-card {
  display: grid;
  grid-template-columns: minmax(310px, .78fr) minmax(0, 1.22fr);
  gap: 22px;
  min-height: calc(100vh - 64px);
  align-items: stretch;
}

.poster-panel,
.glass-panel,
.content-panel {
  border: 1px solid var(--line);
  background: linear-gradient(145deg, rgba(32, 28, 23, .80), rgba(23, 21, 17, .64));
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow);
}

.poster-panel {
  position: sticky;
  top: 24px;
  align-self: start;
  min-height: 720px;
  border-radius: 38px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.poster-image {
  width: 100%;
  height: 100%;
  min-height: 640px;
  object-fit: cover;
  display: block;
  opacity: .94;
}

.poster-caption {
  position: absolute;
  right: 28px;
  bottom: 28px;
  display: grid;
  gap: 2px;
  text-align: right;
  text-shadow: 0 8px 24px rgba(0,0,0,.75);
}
.poster-caption strong,
.ssla-mark span {
  font-family: 'Reem Kufi', 'IBM Plex Sans Arabic', sans-serif;
  font-weight: 700;
  letter-spacing: .06em;
}
.poster-caption strong { font-size: clamp(2.2rem, 5vw, 4rem); line-height: .86; }
.poster-caption span { font-size: .78rem; color: rgba(255,255,255,.78); }

.content-panel {
  border-radius: 38px;
  padding: clamp(24px, 4vw, 52px);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.brand-row {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: start;
  margin-bottom: clamp(28px, 5vw, 56px);
}

.ssla-mark { display: grid; gap: 0; line-height: 1; }
.ssla-mark span { font-size: clamp(1.8rem, 4vw, 3rem); }
.ssla-mark small { font-size: .56rem; letter-spacing: .08em; color: var(--muted); direction: ltr; }

.eyebrow {
  margin: 0;
  color: var(--green);
  font-weight: 700;
  letter-spacing: .04em;
}

.intro-block { text-align: right; }
.speaker {
  margin: 0;
  font-family: 'Reem Kufi', 'IBM Plex Sans Arabic', sans-serif;
  font-size: clamp(1.9rem, 4vw, 3.55rem);
  line-height: 1.05;
}
.role { margin: 8px 0 40px; color: var(--soft); font-size: clamp(1rem, 1.8vw, 1.35rem); }

h1 {
  margin: 0;
  font-family: 'Reem Kufi', 'IBM Plex Sans Arabic', sans-serif;
  font-size: clamp(2.6rem, 6.8vw, 6.2rem);
  line-height: .96;
  letter-spacing: -.045em;
}
.subtitle {
  margin: 20px 0 0;
  color: var(--muted);
  font-size: clamp(1.15rem, 2.1vw, 1.8rem);
}

.details-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin: 38px 0;
}
.detail-item {
  display: flex;
  gap: 12px;
  align-items: center;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: rgba(255,255,255,.055);
}
.detail-item .icon {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  color: var(--paper);
  font-size: 1.25rem;
  flex: 0 0 auto;
}
.detail-item b { display: block; font-size: .82rem; color: var(--green); }
.detail-item span:not(.icon) { color: var(--ink); }

.registration-form,
.admin-login-form { display: grid; gap: 14px; }
.form-heading { display: flex; justify-content: space-between; gap: 12px; align-items: end; margin-bottom: 4px; }
.form-heading h2,
.admin-login h2,
.table-toolbar h2 { margin: 0; font-family: 'Reem Kufi', 'IBM Plex Sans Arabic', sans-serif; }
.form-heading p,
.admin-header p,
.admin-login p,
.table-toolbar p { margin: 4px 0 0; color: var(--soft); }

.two-cols { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
label { display: grid; gap: 7px; color: var(--muted); font-weight: 600; }
label em { color: var(--green); font-style: normal; }
input, textarea, select, button {
  font: inherit;
}
input, textarea, select {
  width: 100%;
  border: 1px solid rgba(255,255,255,.18);
  background: rgba(8, 8, 7, .42);
  color: var(--ink);
  border-radius: 18px;
  padding: 14px 16px;
  outline: none;
  transition: border-color .18s ease, background .18s ease, box-shadow .18s ease;
}
select option { background: #1b1814; color: var(--ink); }
textarea { resize: vertical; min-height: 92px; }
input:focus, textarea:focus, select:focus {
  border-color: rgba(168,181,138,.78);
  background: rgba(8, 8, 7, .58);
  box-shadow: 0 0 0 4px rgba(168,181,138,.12);
}
::placeholder { color: rgba(247,242,234,.42); }

.submit-button,
.admin-login-form button,
#refreshButton,
.export-button,
.ghost-link {
  border: 1px solid rgba(255,255,255,.28);
  border-radius: 999px;
  color: #171510;
  background: linear-gradient(135deg, #f7f2ea, #a8b58a);
  padding: 13px 22px;
  cursor: pointer;
  text-decoration: none;
  font-weight: 800;
  transition: transform .18s ease, filter .18s ease, box-shadow .18s ease;
}
.submit-button {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 6px;
  min-height: 60px;
}
.submit-button small { opacity: .72; }
button:hover, .export-button:hover, .ghost-link:hover { transform: translateY(-1px); filter: brightness(1.04); box-shadow: 0 10px 30px rgba(0,0,0,.22); }
button:disabled { cursor: wait; opacity: .72; }

.form-message {
  min-height: 28px;
  margin: 0;
  color: var(--ok);
  font-weight: 700;
}
.form-message.error { color: var(--danger); }

/* Admin */
.admin-shell {
  width: min(1240px, calc(100% - 32px));
  margin: 0 auto;
  padding: 32px 0;
}
.glass-panel { border-radius: 30px; padding: clamp(20px, 3vw, 34px); }
.admin-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
  margin-bottom: 18px;
}
.admin-header h1 { font-size: clamp(2rem, 4vw, 4rem); }
.ghost-link { background: rgba(255,255,255,.06); color: var(--ink); white-space: nowrap; }
.admin-login { max-width: 620px; margin: 0 auto; }
.admin-login-form { grid-template-columns: 1fr auto; margin-top: 18px; }
.hidden { display: none !important; }
.stats-row { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 14px; margin-bottom: 16px; }
.stat-card span { color: var(--soft); display: block; margin-bottom: 10px; }
.stat-card strong { font-size: clamp(1.4rem, 3vw, 2.8rem); font-family: 'Reem Kufi', sans-serif; }
.table-panel { overflow: hidden; }
.table-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 16px;
  margin-bottom: 18px;
}
.toolbar-actions { display: flex; gap: 10px; align-items: center; }
.toolbar-actions input { min-width: 260px; }
.table-wrap { overflow: auto; border-radius: 22px; border: 1px solid var(--line); }
table { width: 100%; border-collapse: collapse; min-width: 1120px; background: rgba(0,0,0,.18); }
th, td { padding: 12px 14px; border-bottom: 1px solid rgba(255,255,255,.10); text-align: right; vertical-align: top; }
th { position: sticky; top: 0; background: rgba(28,24,20,.96); color: var(--green); z-index: 1; }
td { color: rgba(255,255,255,.86); }
tr:hover td { background: rgba(255,255,255,.04); }

@media (max-width: 980px) {
  .hero-card { grid-template-columns: 1fr; min-height: auto; }
  .poster-panel { position: relative; min-height: auto; }
  .poster-image { min-height: 0; max-height: 620px; }
  .brand-row, .form-heading, .admin-header, .table-toolbar { flex-direction: column; align-items: stretch; }
  .admin-login-form, .stats-row { grid-template-columns: 1fr; }
  .toolbar-actions { flex-direction: column; align-items: stretch; }
  .toolbar-actions input { min-width: 0; }
}

@media (max-width: 640px) {
  .page-shell, .admin-shell { width: min(100% - 18px, 1180px); padding: 9px 0; }
  .content-panel, .poster-panel, .glass-panel { border-radius: 24px; }
  .content-panel { padding: 22px; }
  .two-cols, .details-grid { grid-template-columns: 1fr; }
  .role { margin-bottom: 28px; }
  h1 { font-size: clamp(2.2rem, 15vw, 4rem); }
  .submit-button { align-items: flex-start; flex-direction: column; }
}