/* =============================================================
   هندسة التقارير الإلكترونية — Webinar Landing Page
   Design system: black glassmorphism + blue accent, Marhey font
   ============================================================= */

:root{
  --bg: #05070d;
  --bg-soft: #0a0e1a;
  --surface: rgba(255,255,255,0.045);
  --surface-strong: rgba(255,255,255,0.07);
  --border: rgba(255,255,255,0.09);
  --border-strong: rgba(255,255,255,0.16);

  --text: #f3f6fb;
  --text-muted: #93a0b8;
  --text-faint: #5c6785;

  --accent: #3b82f6;
  --accent-2: #38bdf8;
  --accent-3: #6366f1;
  --accent-soft: rgba(59,130,246,0.14);

  --radius-sm: 12px;
  --radius-md: 18px;
  --radius-lg: 28px;

  --shadow-glow: 0 0 60px rgba(59,130,246,0.25);
  --ease: cubic-bezier(.22,1,.36,1);
}

*,*::before,*::after{ box-sizing: border-box; margin:0; padding:0; }

html{ scroll-behavior: smooth; }

body{
  background: var(--bg);
  color: var(--text);
  font-family: 'Marhey', 'Tahoma', 'Segoe UI', sans-serif;
  line-height: 1.85;
  font-weight: 400;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
ul{ list-style:none; }
button{ font-family:inherit; }

.container{
  width:100%;
  max-width: 1180px;
  margin-inline: auto;
  padding-inline: 24px;
}

/* ---------- background fx ---------- */
.bg-fx{ position:fixed; inset:0; z-index:-1; overflow:hidden; }
.orb{
  position:absolute; border-radius:50%;
  filter: blur(90px);
  opacity:.35;
  animation: drift 22s ease-in-out infinite;
}
.orb-1{ width:520px; height:520px; background: var(--accent); top:-10%; right:-10%; }
.orb-2{ width:460px; height:460px; background: var(--accent-3); bottom:-15%; left:-10%; animation-delay: -7s; }
.orb-3{ width:380px; height:380px; background: var(--accent-2); top:40%; left:35%; animation-delay: -14s; opacity:.2; }

@keyframes drift{
  0%,100%{ transform: translate(0,0) scale(1); }
  33%{ transform: translate(-40px, 30px) scale(1.08); }
  66%{ transform: translate(30px,-30px) scale(0.95); }
}

.grid-overlay{
  position:absolute; inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 20%, #000 40%, transparent 100%);
}

/* ---------- reveal on scroll ---------- */
.reveal{ opacity:0; transform: translateY(28px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.reveal.in-view{ opacity:1; transform:none; }

/* ---------- header ---------- */
.site-header{
  position: fixed; inset-inline:0; top:0; z-index:50;
  padding: 18px 0;
  transition: background .3s ease, padding .3s ease, border-color .3s ease;
  border-bottom: 1px solid transparent;
}
.site-header.scrolled{
  padding: 12px 0;
  background: rgba(5,7,13,0.72);
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  border-bottom: 1px solid var(--border);
}
.header-inner{ display:flex; align-items:center; justify-content:space-between; gap:16px; }
.brand{ display:flex; flex-direction:column; line-height:1.3; }
.brand-name{ font-weight:700; font-size:1.05rem; }
.brand-role{ font-size:.8rem; color: var(--text-muted); }

/* ---------- buttons ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  border-radius: 999px; font-weight:600; white-space:nowrap;
  cursor:pointer; border:1px solid transparent;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), background .25s var(--ease), border-color .25s var(--ease);
}
.btn:active{ transform: scale(.97); }

.btn-primary{
  background: linear-gradient(135deg, var(--accent-2), var(--accent), var(--accent-3));
  background-size: 160% 160%;
  color:#fff;
  box-shadow: 0 8px 24px rgba(59,130,246,0.35);
}
.btn-primary:hover{ background-position: 100% 0; box-shadow: 0 10px 32px rgba(59,130,246,0.5); transform: translateY(-2px); }

.btn-ghost{
  background: var(--surface);
  border-color: var(--border-strong);
  color: var(--text);
  backdrop-filter: blur(8px);
}
.btn-ghost:hover{ background: var(--surface-strong); border-color: var(--accent); }

.btn-sm{ padding: 10px 20px; font-size:.85rem; }
.btn-lg{ padding: 16px 30px; font-size:1rem; }
.btn-block{ width:100%; }

.btn-spinner{
  width:16px; height:16px; border-radius:50%;
  border:2px solid rgba(255,255,255,.4); border-top-color:#fff;
  display:none; animation: spin .7s linear infinite;
}
.is-loading .btn-spinner{ display:inline-block; }
.is-loading .btn-label{ opacity:.7; }
@keyframes spin{ to{ transform: rotate(360deg); } }

/* ---------- hero ---------- */
.hero{ position:relative; padding: 168px 0 96px; }
.hero-grid{
  display:grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items:center;
}

.pill{
  display:inline-flex; align-items:center; gap:6px;
  padding: 8px 18px; border-radius:999px;
  background: var(--accent-soft); border:1px solid rgba(59,130,246,0.35);
  color:#bcd6ff; font-size:.85rem; font-weight:600;
  margin-bottom:24px;
}

.hero-title{
  font-size: clamp(2.1rem, 4vw, 3.4rem);
  font-weight:800; line-height:1.35; margin-bottom:22px;
}
.text-gradient{
  background: linear-gradient(90deg, var(--accent-2), var(--accent), var(--accent-3));
  -webkit-background-clip:text; background-clip:text; color:transparent;
}
.text-accent{ color: var(--accent-2); font-weight:600; }

.hero-text{
  color: var(--text-muted); font-size: 1.08rem; max-width: 560px; margin-bottom: 34px;
}

.hero-cta{ display:flex; flex-wrap:wrap; gap:16px; margin-bottom:44px; }
.hero-cta svg{ transform: scaleX(-1); } /* arrow points right in RTL flow */

.info-chips{ display:flex; flex-wrap:wrap; gap:14px; }
.chip{
  display:flex; align-items:center; gap:10px;
  padding:12px 16px; border-radius: var(--radius-sm);
  background: var(--surface); border:1px solid var(--border);
  backdrop-filter: blur(10px);
}
.chip-icon{ font-size:1.3rem; }
.chip b{ display:block; font-size:.92rem; font-weight:700; }
.chip small{ display:block; font-size:.72rem; color: var(--text-faint); }

/* ---------- hero visual ---------- */
.hero-visual{
  position:relative; display:flex; flex-direction:column; align-items:center;
  padding-top: 20px;
}
.visual-glow{
  position:absolute; width:340px; height:340px; border-radius:50%;
  background: radial-gradient(circle, rgba(59,130,246,0.45), rgba(56,189,248,0.15) 55%, transparent 75%);
  filter: blur(10px); top:6%; z-index:0;
  animation: pulseGlow 5s ease-in-out infinite;
}
@keyframes pulseGlow{ 0%,100%{ transform: scale(1); opacity:1; } 50%{ transform: scale(1.08); opacity:.85; } }

.orbit-ring{
  position:absolute; border:1px dashed var(--border-strong); border-radius:50%;
  top:50%; left:50%; transform: translate(-50%,-50%);
}
.ring-1{ width:400px; height:400px; animation: spinSlow 40s linear infinite; }
.ring-2{ width:470px; height:470px; animation: spinSlow 60s linear infinite reverse; opacity:.6; }
@keyframes spinSlow{ to{ transform: translate(-50%,-50%) rotate(360deg); } }

.orbit-dot{
  position:absolute; color: var(--accent-2);
  background: var(--surface-strong); border:1px solid var(--border-strong);
  width:48px; height:48px; border-radius:50%;
  display:flex; align-items:center; justify-content:center;
  backdrop-filter: blur(8px);
  animation: floaty 6s ease-in-out infinite;
}
.orbit-dot svg{ width:22px; height:22px; }
.dot-a{ top:6%; left:2%; animation-delay:0s; }
.dot-b{ top:14%; right:0; animation-delay:1.4s; }
.dot-c{ bottom:22%; left:-2%; animation-delay:2.8s; }
@keyframes floaty{ 0%,100%{ transform: translateY(0); } 50%{ transform: translateY(-14px); } }

.presenter-photo{
  position:relative; z-index:1;
  width: min(360px, 80%);
  filter: drop-shadow(0 30px 60px rgba(0,0,0,0.55));
  transition: transform .15s ease-out;
  will-change: transform;
}

.presenter-tag{
  position:relative; z-index:1; margin-top: -8px;
  display:flex; flex-direction:column; align-items:center; text-align:center;
  padding: 14px 26px; border-radius: var(--radius-md);
  background: var(--surface); border:1px solid var(--border);
  backdrop-filter: blur(12px);
}
.presenter-tag-name{ font-weight:700; font-size:1.05rem; }
.presenter-tag-role{ font-size:.82rem; color: var(--text-muted); margin-top:2px; }

.social-row{ display:flex; gap:12px; margin-top:18px; }
.social-btn{
  width:42px; height:42px; border-radius:50%;
  display:flex; align-items:center; justify-content:center;
  background: var(--surface); border:1px solid var(--border);
  color: var(--text-muted);
  transition: all .25s var(--ease);
}
.social-btn:hover{ color:#fff; border-color: var(--accent); background: var(--accent-soft); transform: translateY(-3px); }

.scroll-hint{ display:flex; justify-content:center; margin-top:60px; }
.scroll-hint span{
  width:26px; height:42px; border-radius:14px; border:2px solid var(--border-strong);
  position:relative; display:block;
}
.scroll-hint span::before{
  content:''; position:absolute; top:8px; left:50%; transform:translateX(-50%);
  width:4px; height:8px; border-radius:2px; background: var(--accent-2);
  animation: scrollDown 1.8s ease-in-out infinite;
}
@keyframes scrollDown{ 0%{ opacity:1; top:8px;} 70%{opacity:0; top:20px;} 100%{opacity:0; top:8px;} }

/* ---------- section shared ---------- */
section{ position:relative; padding: 110px 0; }
.section-head{ text-align:center; max-width:680px; margin:0 auto 64px; }
.section-head.align-start{ text-align: start; margin-inline: 0; }
.eyebrow{
  display:inline-block; color: var(--accent-2); font-weight:700; font-size:.85rem;
  letter-spacing:.02em; margin-bottom:14px;
}
.section-title{ font-size: clamp(1.6rem, 3vw, 2.3rem); font-weight:800; margin-bottom:16px; }
.section-sub{ color: var(--text-muted); font-size:1.05rem; }

/* ---------- topics ---------- */
.topics-grid{
  display:grid; grid-template-columns: repeat(3, 1fr); gap: 28px;
}
.topic-card{
  position:relative;
  padding: 36px 30px;
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, var(--surface), rgba(255,255,255,0.02));
  border:1px solid var(--border);
  backdrop-filter: blur(14px);
  transition: transform .35s var(--ease), border-color .35s var(--ease), box-shadow .35s var(--ease);
  transform-style: preserve-3d;
  will-change: transform;
}
.topic-card:hover{ border-color: rgba(59,130,246,0.45); box-shadow: 0 24px 48px rgba(0,0,0,0.4), var(--shadow-glow); }
.topic-index{
  position:absolute; top:22px; left:26px;
  font-size:.85rem; font-weight:700; color: var(--text-faint);
}
.topic-icon{
  width:58px; height:58px; border-radius: var(--radius-sm);
  background: var(--accent-soft); border:1px solid rgba(59,130,246,0.3);
  display:flex; align-items:center; justify-content:center;
  color: var(--accent-2);
  margin-bottom:22px;
}
.topic-icon svg{ width:28px; height:28px; }
.topic-card h3{ font-size:1.2rem; font-weight:700; margin-bottom:14px; line-height:1.6; }
.topic-card p{ color: var(--text-muted); font-size:.96rem; line-height:1.9; }

/* ---------- CTA banner ---------- */
.cta-banner{ padding: 40px 0 110px; }
.cta-panel{
  text-align:center; padding: 64px 32px;
  border-radius: var(--radius-lg);
  background: radial-gradient(120% 140% at 50% 0%, rgba(59,130,246,0.16), transparent 60%), var(--surface);
  border:1px solid var(--border-strong);
  backdrop-filter: blur(16px);
}
.cta-panel h2{ font-size: clamp(1.5rem, 3vw, 2.1rem); font-weight:800; margin-bottom:36px; }
.interested-count{ color: var(--accent-2); }

.countdown{ display:flex; justify-content:center; gap:16px; margin-bottom:40px; flex-wrap:wrap; }
.cd-item{
  min-width:82px; padding:16px 10px; border-radius: var(--radius-sm);
  background: var(--surface-strong); border:1px solid var(--border);
}
.cd-num{
  display:block; font-size:1.8rem; font-weight:800;
  background: linear-gradient(180deg, #fff, var(--accent-2));
  -webkit-background-clip:text; background-clip:text; color:transparent;
  font-variant-numeric: tabular-nums;
}
.cd-label{ display:block; font-size:.78rem; color: var(--text-muted); margin-top:4px; }

/* ---------- register ---------- */
.register-grid{
  display:grid; grid-template-columns: .85fr 1.15fr; gap: 64px; align-items:start;
}

.register-form{
  padding: 36px; border-radius: var(--radius-lg);
  background: var(--surface); border:1px solid var(--border);
  backdrop-filter: blur(16px);
  display:flex; flex-direction:column; gap:22px;
}

.field{ display:flex; flex-direction:column; gap:8px; }
.field label{ font-size:.92rem; font-weight:700; color: var(--text); }
.field input{
  width:100%; padding:14px 16px; border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.04); border:1px solid var(--border);
  color: var(--text); font-family:inherit; font-size:16px;
  transition: border-color .2s ease, background .2s ease;
}
.field input::placeholder{ color: var(--text-faint); }
.field input:focus{
  outline:none; border-color: var(--accent); background: rgba(59,130,246,0.06);
}
.field input.invalid{ border-color:#f87171; }

/* ---------- country searchable combobox ---------- */
.country-field{ position:relative; }
.country-trigger{
  width:100%; display:flex; align-items:center; gap:10px;
  padding:14px 16px; border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.04); border:1px solid var(--border);
  color: var(--text); font-family:inherit; font-size:16px;
  cursor:pointer; text-align:start;
  transition: border-color .2s ease, background .2s ease;
}
.country-trigger:hover{ border-color: var(--border-strong); }
.country-field.open .country-trigger{ border-color: var(--accent); background: rgba(59,130,246,0.06); }
.country-trigger.invalid{ border-color:#f87171; }
.country-trigger-flag{
  width:24px; height:18px; border-radius:4px; flex-shrink:0;
  background: rgba(255,255,255,0.06);
  display:flex; align-items:center; justify-content:center; overflow:hidden;
}
.country-trigger-flag img{ width:24px; height:18px; border-radius:4px; object-fit:cover; box-shadow: 0 0 0 1px rgba(255,255,255,0.1); }
.country-trigger-label{ flex:1; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.country-trigger-label.placeholder{ color: var(--text-faint); }
.country-chevron{ flex-shrink:0; color: var(--text-muted); transition: transform .2s ease; }
.country-field.open .country-chevron{ transform: rotate(180deg); }

.country-dropdown{
  position:absolute; z-index:30; inset-inline:0; top: calc(100% + 8px);
  background: #0a0e1c; border:1px solid var(--border-strong); border-radius: var(--radius-sm);
  box-shadow: 0 24px 60px rgba(0,0,0,0.55);
  display:flex; flex-direction:column; height:320px; max-height:320px; overflow:hidden;
}
/* the [hidden] attribute alone loses to the ".country-dropdown{display:flex}" rule above
   (author CSS beats the UA default [hidden]{display:none} at equal/no !important), so the
   panel would stay visually open forever regardless of the JS toggling the attribute.
   This rule wins on specificity and forces it closed whenever [hidden] is present. */
.country-dropdown[hidden]{ display:none; }
.country-search-wrap{
  padding:10px; border-bottom:1px solid var(--border); flex-shrink:0;
  display:flex; align-items:center; gap:8px;
}
.country-search-wrap input{
  flex:1; min-width:0; padding:11px 14px; border-radius:10px; font-size:16px;
  background: rgba(255,255,255,0.05); border:1px solid var(--border);
  color: var(--text); font-family:inherit;
}
.country-search-wrap input:focus{ outline:none; border-color: var(--accent); }
.country-close-btn{
  flex-shrink:0; width:38px; height:38px; border-radius:10px;
  display:flex; align-items:center; justify-content:center;
  background: rgba(255,255,255,0.05); border:1px solid var(--border);
  color: var(--text-muted); cursor:pointer;
  transition: background .2s ease, color .2s ease, border-color .2s ease;
}
.country-close-btn:hover{ background: rgba(248,113,113,0.15); border-color: rgba(248,113,113,0.4); color:#f87171; }
.country-list{ flex: 1 1 auto; min-height: 0; overflow-y:auto; padding:6px; }
.country-option{
  display:flex; align-items:center; gap:10px;
  padding:10px 12px; border-radius:10px; cursor:pointer; font-size:.95rem;
}
.country-option img{ width:22px; height:16px; border-radius:3px; flex-shrink:0; object-fit:cover; box-shadow: 0 0 0 1px rgba(255,255,255,0.1); }
.country-option:hover, .country-option.active{ background: var(--accent-soft); }
.country-empty{ padding:18px; text-align:center; color: var(--text-faint); font-size:.9rem; }

/* The backdrop is only rendered on small screens (below), matching the
   breakpoint where .country-dropdown itself switches to position:fixed.
   On desktop the dropdown is position:absolute and scrolls WITH the page,
   but a position:fixed backdrop does not — scrolling away from the field
   would leave a full-screen dim overlay with no visible panel underneath.
   Outside-click-to-close (in main.js) already covers desktop, so no
   backdrop is needed there. */
.country-backdrop{ display:none; }

@media (max-width: 640px){
  .country-backdrop:not([hidden]){
    display:block; position:fixed; inset:0; z-index:25;
    background: rgba(2,4,10,0.6);
    backdrop-filter: blur(2px);
  }
}

/* on small screens the dropdown becomes a fixed bottom sheet, so the close
   button and backdrop stay reachable even if the on-screen keyboard covers
   the trigger's original position */
@media (max-width: 640px){
  .country-dropdown{
    position:fixed;
    inset-inline:12px;
    top:auto;
    bottom:12px;
    height:65vh;
    max-height:65vh;
    border-radius: var(--radius-lg);
  }
}

.hint{ font-size:.78rem; color: var(--text-faint); }
.error-msg{ font-size:.8rem; color:#f87171; min-height:1em; display:block; }

.form-status{
  text-align:center; font-size:.92rem; min-height: 1.4em; font-weight:600;
}
.form-status.success{ color:#4ade80; }
.form-status.error{ color:#f87171; }

/* ================= responsive ================= */
@media (max-width: 980px){
  .hero-grid{ grid-template-columns: 1fr; }
  .hero-content{ order:2; text-align:center; }
  .hero-visual{ order:1; }
  .hero-text{ margin-inline:auto; }
  .hero-cta{ justify-content:center; }
  .info-chips{ justify-content:center; }
  .topics-grid{ grid-template-columns: 1fr; }
  .register-grid{ grid-template-columns: 1fr; gap:36px; }
  .section-head.align-start{ text-align:center; margin-inline:auto; }
}

@media (max-width: 560px){
  .hero{ padding-top:140px; }
  section{ padding: 76px 0; }
  .register-form{ padding: 26px 20px; }
  .cta-panel{ padding: 44px 20px; }
  .countdown{ gap:10px; }
  .cd-item{ min-width:68px; padding:12px 6px; }
  .container{ padding-inline: 16px; }
  .brand-role{ display:none; }
  .brand-name{ font-size:.92rem; }
  .btn-sm{ padding: 9px 16px; font-size:.78rem; }
}

@media (hover:none){
  .tilt{ transform:none !important; }
}