/*
 * Event Landing Page — Stylesheet
 * Developed by lautandigital.id
 * https://lautandigital.id
 */

/* ============================================================
   RESET & BASE
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --primary:     #6366f1;
  --primary-dark:#4f46e5;
  --secondary:   #8b5cf6;
  --accent:      #ec4899;
  --bg:          #0a0a0f;
  --bg-2:        #0f0f1a;
  --bg-3:        #13131f;
  --surface:     #1a1a2e;
  --surface-2:   #1e1e35;
  --border:      rgba(255,255,255,.08);
  --text:        #e2e8f0;
  --text-muted:  #94a3b8;
  --text-dim:    #64748b;
  --radius:      12px;
  --radius-lg:   20px;
  --shadow:      0 4px 24px rgba(0,0,0,.4);
  --shadow-lg:   0 8px 48px rgba(0,0,0,.6);
  --transition:  .25s ease;
  --font:        'Inter', system-ui, sans-serif;
}

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
ul { list-style: none; }
button { cursor: pointer; font-family: var(--font); border: none; background: none; }
input, select, textarea { font-family: var(--font); }

/* ============================================================
   UTILITIES
   ============================================================ */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section { padding: 100px 0; }

.section__header {
  text-align: center;
  margin-bottom: 64px;
}

.section__tag {
  display: inline-block;
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--primary);
  background: rgba(99,102,241,.12);
  border: 1px solid rgba(99,102,241,.3);
  padding: 4px 14px;
  border-radius: 99px;
  margin-bottom: 16px;
}

.section__title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  line-height: 1.2;
  color: #fff;
}

.section__desc {
  margin-top: 12px;
  color: var(--text-muted);
  font-size: 1.05rem;
}

.hidden { display: none !important; }

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: .95rem;
  transition: var(--transition);
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,.06);
  opacity: 0;
  transition: opacity var(--transition);
}

.btn:hover::after { opacity: 1; }

.btn--primary {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  box-shadow: 0 4px 20px rgba(99,102,241,.4);
}

.btn--primary:hover { box-shadow: 0 6px 28px rgba(99,102,241,.6); transform: translateY(-1px); }

.btn--outline {
  background: transparent;
  color: var(--primary);
  border: 1.5px solid var(--primary);
}

.btn--outline:hover { background: rgba(99,102,241,.1); transform: translateY(-1px); }

.btn--ghost {
  background: rgba(255,255,255,.06);
  color: var(--text);
  border: 1.5px solid var(--border);
}

.btn--ghost:hover { background: rgba(255,255,255,.1); }

.btn--sm { padding: 8px 18px; font-size: .85rem; border-radius: 8px; }
.btn--lg { padding: 16px 36px; font-size: 1.05rem; border-radius: 14px; }
.btn--full { width: 100%; }

.btn__loader {
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255,255,255,.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin .7s linear infinite;
}

/* ============================================================
   NAVIGATION
   ============================================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 20px 0;
  transition: background var(--transition), padding var(--transition), backdrop-filter var(--transition);
}

.nav.scrolled {
  background: rgba(10,10,15,.85);
  backdrop-filter: blur(16px);
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.nav__logo {
  font-size: 1.25rem;
  font-weight: 900;
  color: #fff;
  letter-spacing: -.02em;
}

.nav__logo span { color: var(--primary); }

.nav__links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav__links a:not(.btn) {
  font-size: .9rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color var(--transition);
}

.nav__links a:not(.btn):hover { color: #fff; }

.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}

.nav__toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: var(--transition);
}

.nav__toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__toggle.active span:nth-child(2) { opacity: 0; }
.nav__toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 50% -10%, rgba(99,102,241,.25) 0%, transparent 60%),
    radial-gradient(ellipse 50% 40% at 80% 60%, rgba(139,92,246,.15) 0%, transparent 50%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 100%);
}

.hero__particles {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.particle {
  position: absolute;
  width: 2px;
  height: 2px;
  border-radius: 50%;
  background: rgba(99,102,241,.6);
  animation: float linear infinite;
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 780px;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--primary);
  background: rgba(99,102,241,.1);
  border: 1px solid rgba(99,102,241,.3);
  padding: 6px 16px;
  border-radius: 99px;
  margin-bottom: 24px;
}

.badge__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse 2s ease-in-out infinite;
}

.hero__title {
  font-size: clamp(2.8rem, 8vw, 6rem);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -.03em;
  color: #fff;
  margin-bottom: 24px;
}

.hero__title span {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__subtitle {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--text-muted);
  max-width: 560px;
  line-height: 1.7;
  margin-bottom: 40px;
}

.hero__cta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 60px;
}

.hero__meta {
  display: flex;
  align-items: center;
  gap: 0;
  flex-wrap: wrap;
}

.meta__item {
  display: flex;
  flex-direction: column;
  padding: 0 28px;
}

.meta__item:first-child { padding-left: 0; }

.meta__item strong {
  font-size: 1.6rem;
  font-weight: 800;
  color: #fff;
  line-height: 1;
}

.meta__item span {
  font-size: .8rem;
  color: var(--text-dim);
  margin-top: 4px;
}

.meta__divider {
  width: 1px;
  height: 40px;
  background: var(--border);
}

.hero__scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  font-size: .7rem;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.scroll__line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--text-dim), transparent);
  animation: scrollLine 1.5s ease-in-out infinite;
}

/* ============================================================
   COUNTDOWN
   ============================================================ */
.countdown {
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 40px 0;
}

.countdown__inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 32px;
  flex-wrap: wrap;
}

.countdown__label {
  font-size: .85rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--text-dim);
}

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

.timer__block {
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 64px;
}

.timer__num {
  font-size: 2.4rem;
  font-weight: 900;
  color: #fff;
  font-variant-numeric: tabular-nums;
  line-height: 1;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.timer__unit {
  font-size: .7rem;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-top: 4px;
}

.timer__sep {
  font-size: 2rem;
  font-weight: 900;
  color: var(--text-dim);
  align-self: flex-start;
  margin-top: 2px;
}

/* ============================================================
   ABOUT
   ============================================================ */
.about { background: var(--bg-2); }

.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about__text p {
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 20px;
  font-size: 1.05rem;
}

.about__features {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-top: 32px;
}

.about__features li {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.feature__icon {
  width: 32px;
  height: 32px;
  min-width: 32px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .65rem;
  color: #fff;
  margin-top: 2px;
}

.about__features li strong { display: block; color: #fff; font-size: .95rem; }
.about__features li span { font-size: .85rem; color: var(--text-dim); margin-top: 2px; display: block; }

.about__visual {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.visual__card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  transition: border-color var(--transition), transform var(--transition);
}

.visual__card:hover { border-color: var(--primary); transform: translateY(-2px); }

.visual__card--5 { grid-column: 1 / -1; }

.visual__num {
  display: block;
  font-size: .65rem;
  font-weight: 700;
  letter-spacing: .1em;
  color: var(--primary);
  margin-bottom: 8px;
}

.visual__card strong { font-size: .9rem; color: var(--text); }

.visual__glow {
  position: absolute;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(99,102,241,.2), transparent 70%);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
}

/* ============================================================
   SPEAKERS
   ============================================================ */
.speakers { background: var(--bg); }

.speakers__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.speaker__card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 20px;
  text-align: center;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
  animation: fadeUp .5s ease both;
}

.speaker__card:hover {
  border-color: var(--primary);
  transform: translateY(-4px);
  box-shadow: 0 8px 32px rgba(99,102,241,.2);
}

.avatar__placeholder {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--c1), var(--c2));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  font-weight: 800;
  color: #fff;
  margin: 0 auto;
}

.speaker__info { margin-top: 16px; }
.speaker__info h3 { font-size: 1rem; font-weight: 700; color: #fff; }
.speaker__info span { font-size: .8rem; color: var(--primary); font-weight: 500; display: block; margin-top: 4px; }
.speaker__info p { font-size: .8rem; color: var(--text-dim); margin-top: 6px; }

.speakers__more {
  text-align: center;
  margin-top: 40px;
  font-size: .9rem;
  color: var(--text-dim);
}

/* ============================================================
   SCHEDULE
   ============================================================ */
.schedule { background: var(--bg-2); }

.schedule__tabs {
  display: flex;
  gap: 8px;
  justify-content: center;
  margin-bottom: 40px;
}

.tab__btn {
  padding: 10px 28px;
  border-radius: 99px;
  font-size: .9rem;
  font-weight: 600;
  color: var(--text-muted);
  background: var(--surface);
  border: 1px solid var(--border);
  transition: var(--transition);
}

.tab__btn:hover { color: #fff; border-color: var(--primary); }

.tab__btn.active {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  border-color: transparent;
  box-shadow: 0 4px 16px rgba(99,102,241,.4);
}

.schedule__list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-width: 800px;
  margin: 0 auto;
}

.schedule__item {
  display: flex;
  gap: 20px;
  align-items: flex-start;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 24px;
  transition: border-color var(--transition);
  animation: fadeUp .4s ease both;
}

.schedule__item:hover { border-color: rgba(99,102,241,.4); }

.sched__time {
  min-width: 80px;
  font-size: .8rem;
  font-weight: 700;
  color: var(--primary);
  font-variant-numeric: tabular-nums;
  padding-top: 2px;
}

.sched__content h4 { font-size: 1rem; font-weight: 600; color: #fff; }
.sched__content p { font-size: .85rem; color: var(--text-dim); margin-top: 4px; }

.sched__tag {
  display: inline-block;
  font-size: .7rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 6px;
  margin-top: 8px;
}

.sched__tag--keynote { background: rgba(99,102,241,.15); color: var(--primary); }
.sched__tag--workshop { background: rgba(236,72,153,.15); color: var(--accent); }
.sched__tag--panel { background: rgba(16,185,129,.15); color: #10b981; }
.sched__tag--break { background: rgba(100,116,139,.1); color: var(--text-dim); }
.sched__tag--networking { background: rgba(245,158,11,.15); color: #f59e0b; }

/* ============================================================
   TICKET
   ============================================================ */
.ticket { background: var(--bg); }

.ticket__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: start;
}

.ticket__card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  position: relative;
  transition: transform var(--transition), border-color var(--transition);
}

.ticket__card:hover { transform: translateY(-4px); border-color: rgba(99,102,241,.4); }

.ticket__card--featured {
  background: linear-gradient(145deg, rgba(99,102,241,.1), rgba(139,92,246,.05));
  border-color: var(--primary);
  transform: scale(1.03);
}

.ticket__card--featured:hover { transform: scale(1.03) translateY(-4px); }

.ticket__badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  padding: 4px 16px;
  border-radius: 99px;
  white-space: nowrap;
}

.ticket__header { text-align: center; margin-bottom: 28px; }

.ticket__tier {
  display: block;
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 12px;
}

.ticket__price {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 2px;
  line-height: 1;
  margin-bottom: 6px;
}

.price__currency {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-muted);
  margin-top: 6px;
}

.price__amount {
  font-size: 3rem;
  font-weight: 900;
  color: #fff;
}

.price__unit {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-muted);
  align-self: flex-end;
  margin-bottom: 6px;
}

.ticket__note {
  font-size: .75rem;
  color: var(--text-dim);
}

.ticket__perks {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 28px;
}

.ticket__perks li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: .88rem;
}

.ticket__perks li::before {
  content: '✓';
  width: 18px;
  height: 18px;
  min-width: 18px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .65rem;
  font-weight: 900;
}

.ticket__perks li.included { color: var(--text); }
.ticket__perks li.included::before { background: linear-gradient(135deg, var(--primary), var(--secondary)); color: #fff; }

.ticket__perks li.excluded { color: var(--text-dim); text-decoration: line-through; }
.ticket__perks li.excluded::before { background: var(--surface-2); color: var(--text-dim); content: '✕'; }

/* ============================================================
   REGISTRATION
   ============================================================ */
.register { background: var(--bg-2); }

.register__inner {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 80px;
  align-items: start;
}

.register__info .section__title { text-align: left; }
.register__info p { color: var(--text-muted); line-height: 1.8; margin: 16px 0 32px; }

.register__details {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.detail__item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: .9rem;
  color: var(--text-muted);
}

.detail__icon { font-size: 1rem; flex-shrink: 0; margin-top: 1px; }

.register__form {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px;
}

.form__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form__group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 20px;
}

.form__group label {
  font-size: .85rem;
  font-weight: 600;
  color: var(--text);
}

.form__group input,
.form__group select {
  background: var(--bg);
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 16px;
  color: var(--text);
  font-size: .9rem;
  transition: border-color var(--transition);
  outline: none;
  width: 100%;
}

.form__group input::placeholder { color: var(--text-dim); }

.form__group input:focus,
.form__group select:focus { border-color: var(--primary); }

.form__group input.error,
.form__group select.error { border-color: #ef4444; }

.form__group select { cursor: pointer; appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2364748b' d='M6 8L1 3h10z'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 14px center; padding-right: 36px; }

.form__error {
  font-size: .78rem;
  color: #ef4444;
  min-height: 18px;
}

.form__note {
  text-align: center;
  font-size: .78rem;
  color: var(--text-dim);
  margin-top: 12px;
}

.form__note a { color: var(--primary); }

.form__success {
  margin-top: 16px;
  padding: 14px 20px;
  background: rgba(16,185,129,.1);
  border: 1px solid rgba(16,185,129,.3);
  border-radius: var(--radius);
  color: #10b981;
  font-size: .9rem;
  font-weight: 600;
  text-align: center;
}

/* ============================================================
   PARTNERS
   ============================================================ */
.partners { background: var(--bg); padding: 80px 0; }
.partners .section__header { margin-bottom: 40px; }

.partners__logos {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 24px;
}

.partner__logo {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 32px;
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-dim);
  letter-spacing: .05em;
  transition: var(--transition);
}

.partner__logo:hover { color: #fff; border-color: rgba(99,102,241,.4); }

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  background: var(--bg-3);
  border-top: 1px solid var(--border);
}

.footer__inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 80px;
  padding: 80px 24px 60px;
}

.footer__brand p {
  color: var(--text-dim);
  font-size: .9rem;
  line-height: 1.7;
  margin-top: 16px;
  max-width: 280px;
}

.footer__socials {
  display: flex;
  gap: 12px;
  margin-top: 24px;
}

.footer__socials a {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: var(--surface);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .8rem;
  font-weight: 700;
  color: var(--text-dim);
  transition: var(--transition);
}

.footer__socials a:hover { color: #fff; border-color: var(--primary); }

.footer__links {
  display: flex;
  gap: 64px;
}

.footer__col {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer__col h4 {
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 8px;
}

.footer__col a {
  font-size: .9rem;
  color: var(--text-muted);
  transition: color var(--transition);
}

.footer__col a:hover { color: #fff; }

.footer__bottom {
  border-top: 1px solid var(--border);
  padding: 20px 24px;
  text-align: center;
}

.footer__bottom p {
  font-size: .82rem;
  color: var(--text-dim);
}

.footer__bottom a { color: var(--primary); }
.footer__bottom a:hover { text-decoration: underline; }

/* ============================================================
   BACK TO TOP
   ============================================================ */
.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  font-size: 1.4rem;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(99,102,241,.5);
  opacity: 0;
  transform: translateY(16px);
  pointer-events: none;
  transition: opacity var(--transition), transform var(--transition);
  z-index: 900;
  border: none;
}

.back-to-top.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: all;
}

.back-to-top:hover { box-shadow: 0 6px 24px rgba(99,102,241,.7); }

/* ============================================================
   ANIMATIONS
   ============================================================ */
@keyframes float {
  0%   { transform: translateY(100vh) scale(0); opacity: 0; }
  10%  { opacity: 1; }
  90%  { opacity: 1; }
  100% { transform: translateY(-100px) scale(1); opacity: 0; }
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: .5; transform: scale(.8); }
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

@keyframes scrollLine {
  0%   { transform: scaleY(0); transform-origin: top; }
  50%  { transform: scaleY(1); transform-origin: top; }
  51%  { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

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

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .about__grid { gap: 48px; }
  .speakers__grid { grid-template-columns: repeat(3, 1fr); }
  .register__inner { grid-template-columns: 1fr; gap: 48px; }
  .register__info .section__title { text-align: center; }
  .register__info p { text-align: center; }
  .register__details { align-items: center; }
}

@media (max-width: 768px) {
  .section { padding: 72px 0; }

  .nav__links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    background: rgba(10,10,15,.97);
    backdrop-filter: blur(16px);
    border-top: 1px solid var(--border);
    padding: 16px 0;
  }

  .nav__links.open { display: flex; }

  .nav__links a:not(.btn) {
    padding: 12px 24px;
    display: block;
    width: 100%;
  }

  .nav__links li:last-child { padding: 8px 24px; }

  .nav__toggle { display: flex; }

  .hero__meta { gap: 0; }
  .meta__item { padding: 0 16px; }

  .about__grid { grid-template-columns: 1fr; gap: 48px; }
  .about__visual { display: none; }

  .speakers__grid { grid-template-columns: repeat(2, 1fr); }

  .ticket__grid { grid-template-columns: 1fr; max-width: 400px; margin: 0 auto; }
  .ticket__card--featured { transform: none; }
  .ticket__card--featured:hover { transform: translateY(-4px); }

  .form__row { grid-template-columns: 1fr; }

  .footer__inner { grid-template-columns: 1fr; gap: 40px; }
  .footer__links { gap: 40px; }
}

@media (max-width: 480px) {
  .hero__cta { flex-direction: column; }
  .hero__cta .btn { width: 100%; }

  .countdown__inner { flex-direction: column; gap: 16px; }

  .speakers__grid { grid-template-columns: 1fr 1fr; }

  .meta__divider { display: none; }
  .hero__meta { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; padding-top: 8px; }
  .meta__item { padding: 0; }

  .back-to-top { bottom: 20px; right: 20px; }
}