/* Daaneshvaran — high-conversion homepage landing */
.dv-home { --home-gold: #D4AF37; --home-teal: #1BA39C; --home-blue: #003087; }

.dv-header-over-hero {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1200;
  background: linear-gradient(180deg, rgba(0, 12, 40, 0.85) 0%, rgba(0, 12, 40, 0.35) 70%, transparent 100%);
  border-bottom: none;
  backdrop-filter: blur(8px);
}

.dv-header-over-hero .dv-logo-text .name,
.dv-header-over-hero .dv-logo-text .tag { color: #fff; }
.dv-header-over-hero .dv-site-mega-trigger,
.dv-header-over-hero .dv-lang-dropdown-trigger { border-color: rgba(255,255,255,0.25); background: rgba(255,255,255,0.08); color: #fff; }

.dv-header-over-hero.dv-header-scrolled {
  background: rgba(0, 12, 40, 0.95);
  backdrop-filter: blur(16px);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.2);
}

.dv-home-hero {
  position: relative;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  overflow: hidden;
  color: #fff;
}

.dv-home-hero__media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.dv-home-hero__video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.05);
  animation: dvHeroKenBurns 24s ease-in-out infinite alternate;
}

.dv-home-hero__poster-fallback {
  position: absolute;
  inset: 0;
  background:
    url('../fa/heroes/hero-photo-campus.png') center/cover no-repeat,
    linear-gradient(135deg, #001a4d 0%, #003087 40%, #0a2a5e 100%);
  animation: dvHeroKenBurns 24s ease-in-out infinite alternate;
}

.dv-home-hero__mesh {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 20% 80%, rgba(27, 163, 156, 0.35) 0%, transparent 55%),
    radial-gradient(ellipse 70% 50% at 85% 20%, rgba(212, 175, 55, 0.2) 0%, transparent 50%),
    linear-gradient(180deg, rgba(0, 8, 30, 0.55) 0%, rgba(0, 20, 60, 0.75) 45%, rgba(0, 8, 25, 0.92) 100%);
  z-index: 1;
}

.dv-home-hero__network {
  position: absolute;
  inset: 0;
  z-index: 2;
  opacity: 0.55;
  pointer-events: none;
}

.dv-home-hero__network svg { width: 100%; height: 100%; }

.dv-home-hero__network line {
  stroke: rgba(212, 175, 55, 0.35);
  stroke-width: 0.5;
  animation: dvNetworkPulse 3s ease-in-out infinite;
}

.dv-home-hero__network circle {
  fill: var(--home-teal);
  animation: dvNodeGlow 2.5s ease-in-out infinite;
}

@keyframes dvHeroKenBurns {
  0% { transform: scale(1.05) translate(0, 0); }
  100% { transform: scale(1.12) translate(-1.5%, -1%); }
}

@keyframes dvNetworkPulse {
  0%, 100% { opacity: 0.3; }
  50% { opacity: 0.85; }
}

@keyframes dvNodeGlow {
  0%, 100% { opacity: 0.4; r: 2; }
  50% { opacity: 1; }
}

.dv-home-hero__content {
  position: relative;
  z-index: 3;
  width: 100%;
  padding: 7rem 0 4rem;
}

.dv-home-hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1rem;
  border-radius: 999px;
  background: rgba(212, 175, 55, 0.15);
  border: 1px solid rgba(212, 175, 55, 0.45);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  margin-bottom: 1.25rem;
  animation: dvFadeUp 0.8s ease both;
}

.dv-home-hero__title-fa {
  font-family: var(--dv-font-display-fa, 'Vazirmatn', serif);
  font-size: clamp(1.75rem, 4.5vw, 3rem);
  font-weight: 800;
  line-height: 1.45;
  margin: 0 0 0.65rem;
  text-shadow: 0 4px 32px rgba(0, 0, 0, 0.5);
  animation: dvFadeUp 0.8s 0.1s ease both;
}

.dv-home-hero__title-en {
  font-family: var(--dv-font-body, 'Inter', sans-serif);
  font-size: clamp(1rem, 2.2vw, 1.35rem);
  font-weight: 500;
  color: rgba(255, 255, 255, 0.88);
  margin: 0 0 2rem;
  line-height: 1.5;
  animation: dvFadeUp 0.8s 0.2s ease both;
}

.dv-home-hero__title-en em {
  font-style: normal;
  color: var(--home-gold);
  font-weight: 700;
}

.dv-home-countdown {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-bottom: 2rem;
  animation: dvFadeUp 0.8s 0.3s ease both;
}

.dv-home-countdown__unit {
  min-width: 72px;
  padding: 0.75rem 0.85rem;
  text-align: center;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.18);
  backdrop-filter: blur(12px);
}

.dv-home-countdown__num {
  display: block;
  font-size: 1.75rem;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  color: var(--home-gold);
  line-height: 1.1;
}

.dv-home-countdown__lbl {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  opacity: 0.75;
  margin-top: 0.25rem;
}

.dv-home-hero__cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
  animation: dvFadeUp 0.8s 0.4s ease both;
}

.dv-home-cta-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem 2rem;
  font-size: 1.05rem;
  font-weight: 700;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--home-gold) 0%, #e8c547 50%, var(--home-gold) 100%);
  background-size: 200% auto;
  color: #0a1628;
  text-decoration: none;
  box-shadow: 0 8px 32px rgba(212, 175, 55, 0.45), 0 0 0 1px rgba(255,255,255,0.2) inset;
  transition: transform 0.25s, box-shadow 0.25s, background-position 0.4s;
  animation: dvCtaShine 4s linear infinite;
}

.dv-home-cta-primary:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 16px 48px rgba(212, 175, 55, 0.55);
}

@keyframes dvCtaShine {
  0% { background-position: 0% center; }
  100% { background-position: 200% center; }
}

.dv-home-cta-secondary {
  color: #fff;
  border: 1px solid rgba(255,255,255,0.35);
  padding: 0.9rem 1.5rem;
  border-radius: 14px;
  text-decoration: none;
  font-weight: 600;
  backdrop-filter: blur(8px);
  background: rgba(255,255,255,0.06);
  transition: background 0.2s, border-color 0.2s;
}

.dv-home-cta-secondary:hover { background: rgba(255,255,255,0.12); border-color: rgba(255,255,255,0.55); }

.dv-home-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--dv-border, #e5e7eb);
  border-block: 1px solid var(--dv-border);
}

@media (max-width: 600px) {
  .dv-home-stats { grid-template-columns: 1fr; }
}

.dv-home-stat {
  padding: 2.5rem 1.5rem;
  text-align: center;
  background: var(--dv-bg-card, #fff);
}

.dv-home-stat__num {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  color: var(--home-blue);
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.dv-home-stat__num span { color: var(--home-teal); }

.dv-home-stat__lbl {
  margin-top: 0.5rem;
  font-size: 0.95rem;
  color: var(--dv-text-muted);
  font-weight: 500;
}

.dv-home-section {
  padding: 5rem 0;
}

.dv-home-section--alt { background: var(--dv-bg-subtle, #f5f6f8); }

.dv-home-section__head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 3rem;
}

.dv-home-section__head .dv-overline {
  color: var(--home-teal);
  font-weight: 700;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.dv-home-section__head h2 {
  font-size: clamp(1.5rem, 3.5vw, 2.25rem);
  color: var(--home-blue);
  margin: 0 0 0.75rem;
}

.dv-home-organizer {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

@media (max-width: 768px) {
  .dv-home-organizer { grid-template-columns: 1fr; }
}

.dv-home-organizer__visual {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  aspect-ratio: 4/3;
  border: 2px solid var(--home-gold);
  box-shadow: 0 20px 60px rgba(0, 48, 135, 0.15);
}

.dv-home-organizer__visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.dv-home-organizer__badge {
  position: absolute;
  bottom: 1rem;
  inset-inline: 1rem;
  padding: 0.75rem 1rem;
  background: rgba(0, 48, 135, 0.92);
  color: #fff;
  border-radius: 12px;
  font-size: 0.85rem;
  font-weight: 600;
}

.dv-home-secretary {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 2.5rem;
  align-items: center;
  padding: 3rem;
  border-radius: 24px;
  background: linear-gradient(135deg, rgba(0, 48, 135, 0.06) 0%, rgba(27, 163, 156, 0.04) 100%);
  border: 1px solid var(--dv-border);
  position: relative;
  overflow: hidden;
}

.dv-home-secretary::before {
  content: '"';
  position: absolute;
  top: -0.5rem;
  inset-inline-start: 1.5rem;
  font-size: 8rem;
  color: rgba(212, 175, 55, 0.12);
  font-family: Georgia, serif;
  line-height: 1;
}

@media (max-width: 768px) {
  .dv-home-secretary { grid-template-columns: 1fr; text-align: center; padding: 2rem; }
}

.dv-home-secretary__photo {
  width: 160px;
  height: 160px;
  border-radius: 50%;
  overflow: hidden;
  border: 4px solid var(--home-gold);
  box-shadow: 0 12px 40px rgba(0, 48, 135, 0.2);
  flex-shrink: 0;
  margin-inline: auto;
}

.dv-home-secretary__photo img { width: 100%; height: 100%; object-fit: cover; }

.dv-home-secretary blockquote {
  margin: 0;
  font-family: var(--dv-font-display-fa);
  font-size: clamp(1.15rem, 2.5vw, 1.5rem);
  line-height: 1.85;
  color: var(--dv-text);
  font-weight: 600;
}

.dv-home-secretary cite {
  display: block;
  margin-top: 1rem;
  font-size: 0.9rem;
  font-style: normal;
  color: var(--home-teal);
  font-weight: 700;
}

.dv-home-program-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.25rem;
}

.dv-home-program-card {
  padding: 1.75rem;
  border-radius: 16px;
  background: var(--dv-bg-card);
  border: 1px solid var(--dv-border);
  transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
  text-decoration: none;
  color: inherit;
  display: block;
}

.dv-home-program-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 48px rgba(0, 48, 135, 0.12);
  border-color: var(--home-gold);
}

.dv-home-program-card__icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  background: linear-gradient(135deg, rgba(0, 48, 135, 0.1), rgba(27, 163, 156, 0.1));
  margin-bottom: 1rem;
}

.dv-home-program-card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
  color: var(--home-blue);
}

.dv-home-program-card p {
  margin: 0;
  font-size: 0.88rem;
  color: var(--dv-text-muted);
  line-height: 1.6;
}

.dv-home-tracks {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

@media (max-width: 900px) {
  .dv-home-tracks { grid-template-columns: 1fr; }
}

.dv-home-track {
  padding: 1.5rem;
  border-radius: 16px;
  background: linear-gradient(160deg, var(--home-blue) 0%, #0a4a8a 100%);
  color: #fff;
  text-decoration: none;
  transition: transform 0.25s;
  min-height: 140px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}

.dv-home-track:nth-child(2) { background: linear-gradient(160deg, #0d6b63 0%, var(--home-teal) 100%); }
.dv-home-track:nth-child(3) { background: linear-gradient(160deg, #6b5a0d 0%, var(--home-gold) 100%); color: #0a1628; }

.dv-home-track:hover { transform: scale(1.03); }

.dv-home-track__flag { font-size: 1.5rem; margin-bottom: 0.5rem; }
.dv-home-track strong { font-size: 1.1rem; }
.dv-home-track span { font-size: 0.8rem; opacity: 0.85; margin-top: 0.35rem; }

.dv-home-testimonials {
  position: relative;
  overflow: hidden;
  max-width: 800px;
  margin: 0 auto;
}

.dv-home-testimonial-slide {
  padding: 2.5rem;
  border-radius: 20px;
  background: var(--dv-bg-card);
  border: 1px solid var(--dv-border);
  text-align: center;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s, transform 0.5s;
  position: absolute;
  inset: 0;
}

.dv-home-testimonial-slide.active {
  opacity: 1;
  transform: translateY(0);
  position: relative;
}

.dv-home-testimonial-slide p {
  font-size: 1.1rem;
  line-height: 1.75;
  margin: 0 0 1.25rem;
  font-style: italic;
}

.dv-home-testimonial-slide footer {
  font-size: 0.9rem;
  color: var(--home-blue);
  font-weight: 700;
}

.dv-home-testimonial-dots {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 1.5rem;
}

.dv-home-testimonial-dots button {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: none;
  background: var(--dv-border);
  cursor: pointer;
  padding: 0;
  transition: background 0.2s, transform 0.2s;
}

.dv-home-testimonial-dots button.active {
  background: var(--home-teal);
  transform: scale(1.2);
}

.dv-home-partners {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem 2rem;
  align-items: center;
}

.dv-home-partner {
  padding: 1rem 1.5rem;
  border-radius: 12px;
  background: var(--dv-bg-card);
  border: 1px solid var(--dv-border);
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--home-blue);
  text-align: center;
  min-width: 140px;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.dv-home-partner:hover {
  border-color: var(--home-gold);
  box-shadow: 0 4px 16px rgba(0, 48, 135, 0.08);
}

.dv-home-partner small {
  display: block;
  font-weight: 400;
  font-size: 0.75rem;
  color: var(--dv-text-muted);
  margin-top: 0.25rem;
}

.dv-home-footer-cta {
  padding: 4rem 0;
  background: linear-gradient(135deg, var(--home-blue) 0%, #0a3d7a 50%, #0d6b63 100%);
  color: #fff;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.dv-home-footer-cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M30 0L60 30L30 60L0 30Z' fill='none' stroke='rgba(212,175,55,0.08)' stroke-width='0.5'/%3E%3C/svg%3E");
  opacity: 0.5;
}

.dv-home-footer-cta .dv-container { position: relative; z-index: 1; }

.dv-home-footer-cta h2 {
  font-size: clamp(1.5rem, 4vw, 2.5rem);
  margin: 0 0 1rem;
}

.dv-home-footer-cta p {
  max-width: 560px;
  margin: 0 auto 2rem;
  opacity: 0.9;
  line-height: 1.7;
}

.dv-reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.dv-reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@keyframes dvFadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (prefers-reduced-motion: reduce) {
  .dv-home-hero__video,
  .dv-home-hero__poster-fallback,
  .dv-home-hero__network line,
  .dv-home-hero__network circle,
  .dv-home-cta-primary { animation: none; }
  .dv-reveal { opacity: 1; transform: none; transition: none; }
}