:root {
  --bg: #080b10;
  --bg-2: #0d121a;
  --surface: rgba(18, 24, 34, 0.82);
  --surface-2: #121822;
  --line: rgba(231, 236, 244, 0.12);
  --line-strong: rgba(231, 236, 244, 0.22);
  --text: #f4f7fb;
  --muted: #a8b3c2;
  --soft: #dbe4ef;
  --blue: #4aa8ff;
  --orange: #f59b3d;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.32);
  --radius: 8px;
  --display: "Space Grotesk", system-ui, sans-serif;
  --body: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  font-family: var(--body);
  background: var(--bg);
  overflow-x: hidden;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -2;
  content: "";
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(135deg, rgba(74, 168, 255, 0.16), transparent 38%),
    linear-gradient(225deg, rgba(245, 155, 61, 0.1), transparent 32%);
  background-size: 72px 72px, 72px 72px, auto, auto;
  mask-image: linear-gradient(to bottom, black 0%, transparent 82%);
  pointer-events: none;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  display: block;
  max-width: 100%;
}

.container {
  width: min(1160px, calc(100% - 40px));
  margin-inline: auto;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 50;
  width: 100%;
  transition: background 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.site-header.scrolled {
  border-bottom: 1px solid var(--line);
  background: rgba(8, 11, 16, 0.9);
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.28);
  backdrop-filter: blur(18px);
}

.top-strip {
  display: flex;
  justify-content: center;
  gap: 18px;
  min-height: 34px;
  padding: 8px 20px;
  color: #c7d1df;
  font-size: 0.82rem;
  background: rgba(255, 255, 255, 0.04);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(1240px, calc(100% - 40px));
  min-height: 76px;
  margin-inline: auto;
}

.brand,
.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.brand-logo {
  display: block;
  width: clamp(180px, 22vw, 340px);
  height: auto;
  border-radius: var(--radius);
  object-fit: contain;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.nav-menu a {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 0 13px;
  border-radius: var(--radius);
  color: #c3cedc;
  font-size: 0.91rem;
  font-weight: 600;
  transition: background 0.2s ease, color 0.2s ease;
}

.nav-menu a:hover,
.nav-menu a:focus-visible {
  color: var(--text);
  background: rgba(255, 255, 255, 0.07);
}

.nav-menu .nav-apply {
  margin-left: 6px;
  color: #08101a;
  background: var(--text);
}

.menu-button {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
  cursor: pointer;
}

.menu-button span {
  display: block;
  width: 20px;
  height: 2px;
  margin: 6px auto;
  background: currentColor;
  transition: transform 0.2s ease;
}

.menu-button.active span:first-child {
  transform: translateY(4px) rotate(45deg);
}

.menu-button.active span:last-child {
  transform: translateY(-4px) rotate(-45deg);
}

.hero {
  position: relative;
  min-height: 100vh;
  padding: 156px 0 80px;
  overflow: hidden;
}

.hero-media {
  position: absolute;
  inset: 0;
  z-index: -1;
}

.hero-media::after {
  position: absolute;
  inset: 0;
  content: "";
  background:
    linear-gradient(90deg, rgba(8, 11, 16, 0.94) 0%, rgba(8, 11, 16, 0.78) 44%, rgba(8, 11, 16, 0.55) 100%),
    linear-gradient(180deg, rgba(8, 11, 16, 0.2) 0%, var(--bg) 100%);
}

.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(0.25) contrast(1.08) brightness(0.68);
}

.hero-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 58px;
  align-items: end;
  min-height: calc(100vh - 236px);
}

.kicker {
  margin: 0 0 14px;
  color: var(--orange);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin: 0;
  font-family: var(--display);
  letter-spacing: 0;
}

h1 {
  max-width: 890px;
  font-size: clamp(3.2rem, 8vw, 6.9rem);
  line-height: 0.93;
  text-wrap: balance;
}

h2 {
  max-width: 790px;
  font-size: clamp(2rem, 4.4vw, 4rem);
  line-height: 1.02;
  text-wrap: balance;
}

h3 {
  font-size: 1.15rem;
}

.hero-copy p:not(.kicker) {
  max-width: 650px;
  margin: 26px 0 0;
  color: var(--soft);
  font-size: clamp(1.08rem, 2vw, 1.34rem);
  line-height: 1.65;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 22px;
  border-radius: var(--radius);
  font-weight: 800;
  transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
}

.button.primary {
  color: #08101a;
  background: var(--text);
}

.button.secondary {
  border: 1px solid var(--line-strong);
  color: var(--text);
  background: rgba(255, 255, 255, 0.075);
  backdrop-filter: blur(12px);
}

.hero-card,
.day-card,
.speaker-card,
.sponsor-block,
.coming-soon-panel,
.faq-list,
.apply-panel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.coming-soon-panel {
  display: grid;
  min-height: 190px;
  place-items: center;
  padding: 34px;
  text-align: center;
  box-shadow: none;
}

.coming-soon-panel span {
  color: var(--text);
  font-family: var(--display);
  font-size: clamp(1.55rem, 3vw, 2.5rem);
  font-weight: 700;
}

.coming-soon-panel p {
  max-width: 600px;
  margin: 12px auto 0;
  color: var(--muted);
  line-height: 1.7;
}

.hero-card {
  display: grid;
  gap: 0;
}

.hero-card div {
  padding: 22px;
}

.hero-card div + div {
  border-top: 1px solid var(--line);
}

.hero-card span {
  display: block;
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
}

.hero-card strong {
  display: block;
  color: var(--text);
  font-size: 1.02rem;
  line-height: 1.45;
}

.section,
.countdown-section,
.apply-section {
  position: relative;
  padding: 96px 0;
  scroll-margin-top: 118px;
}

.muted-section {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.035), rgba(255, 255, 255, 0.015));
}

.section-title {
  margin-bottom: 34px;
}

.split-heading {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(420px, 1.1fr);
  gap: 34px;
  align-items: end;
}

.countdown-section {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: #0b1018;
}

.countdown-gate {
  display: grid;
}

.countdown-trigger {
  display: grid;
  min-height: 210px;
  padding: clamp(28px, 5vw, 54px);
  border: 1px solid rgba(74, 168, 255, 0.34);
  border-radius: var(--radius);
  color: var(--text);
  text-align: left;
  background:
    linear-gradient(135deg, rgba(74, 168, 255, 0.16), rgba(245, 155, 61, 0.09)),
    rgba(255, 255, 255, 0.045);
  box-shadow: var(--shadow);
  cursor: pointer;
  backdrop-filter: blur(16px);
  transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.countdown-trigger:hover,
.countdown-trigger:focus-visible {
  transform: translateY(-3px);
  border-color: rgba(245, 155, 61, 0.58);
  background:
    linear-gradient(135deg, rgba(74, 168, 255, 0.2), rgba(245, 155, 61, 0.13)),
    rgba(255, 255, 255, 0.06);
}

.countdown-trigger span {
  max-width: 820px;
  font-family: var(--display);
  font-size: clamp(2rem, 5.4vw, 4.7rem);
  font-weight: 700;
  line-height: 0.98;
  text-wrap: balance;
}

.countdown-trigger strong {
  display: inline-flex;
  width: max-content;
  margin-top: 28px;
  padding-bottom: 6px;
  border-bottom: 2px solid var(--orange);
  color: var(--soft);
  font-size: clamp(1rem, 2vw, 1.25rem);
}

.countdown-content {
  transform: translateY(18px);
  opacity: 0;
  transition: opacity 0.42s ease, transform 0.42s ease;
}

.countdown-content.active {
  transform: translateY(0);
  opacity: 1;
}

.countdown-content[hidden],
.countdown-gate[hidden] {
  display: none;
}

.countdown {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
}

.countdown div {
  min-height: 128px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.045);
}

.countdown strong {
  display: block;
  font-family: var(--display);
  font-size: clamp(2rem, 4.6vw, 4.1rem);
  line-height: 0.95;
}

.countdown span {
  display: block;
  margin-top: 12px;
  color: var(--muted);
  font-weight: 700;
}

.program-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.day-card {
  overflow: hidden;
}

.day-card header {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 20px;
  border-bottom: 1px solid var(--line);
}

.day-card header span {
  color: var(--orange);
  font-weight: 800;
}

.day-card header strong {
  color: var(--soft);
}

.day-card ol {
  display: grid;
  gap: 0;
  padding: 0;
  margin: 0;
  list-style: none;
}

.day-card li {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 14px;
  padding: 18px 20px;
}

.day-card li + li {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.day-card time {
  color: var(--blue);
  font-weight: 800;
}

.day-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.55;
}

.speaker-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 14px;
}

.speaker-card {
  min-height: 245px;
  padding: 22px;
  box-shadow: none;
}

.logo-letter {
  display: grid;
  width: 54px;
  height: 54px;
  margin-bottom: 28px;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  color: var(--text);
  font-family: var(--display);
  font-size: 1.25rem;
  font-weight: 700;
  background: rgba(255, 255, 255, 0.07);
}

.speaker-card p {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 0.94rem;
  line-height: 1.6;
}

.sponsor-block {
  display: grid;
  grid-template-columns: 170px 1fr;
  gap: 18px;
  align-items: stretch;
  padding: 18px;
  margin-top: 14px;
  box-shadow: none;
}

.sponsor-block h3 {
  display: grid;
  place-items: center start;
  color: var(--orange);
}

.sponsor-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

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

.sponsor-row.compact {
  grid-template-columns: repeat(4, 1fr);
}

.sponsor-row span {
  display: grid;
  min-height: 82px;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius);
  color: var(--soft);
  font-family: var(--display);
  font-weight: 700;
  background: rgba(255, 255, 255, 0.04);
}

.apply-section {
  padding: 78px 0;
}

.apply-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  padding: clamp(26px, 5vw, 46px);
  background:
    linear-gradient(135deg, rgba(74, 168, 255, 0.16), rgba(245, 155, 61, 0.08)),
    var(--surface-2);
}

.apply-panel p:not(.kicker) {
  max-width: 680px;
  margin: 16px 0 0;
  color: var(--muted);
  line-height: 1.7;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-auto-rows: 220px;
  gap: 12px;
}

.gallery-grid img {
  width: 100%;
  height: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  object-fit: cover;
  filter: saturate(0.92) contrast(1.04);
  transition: transform 0.35s ease, filter 0.35s ease;
}

.gallery-grid img:hover {
  transform: translateY(-4px);
  filter: saturate(1) contrast(1.08);
}

.gallery-grid .wide {
  grid-column: span 2;
}

.faq-layout {
  display: grid;
  grid-template-columns: minmax(240px, 0.75fr) minmax(0, 1.25fr);
  gap: 44px;
  align-items: start;
}

.faq-list {
  padding: 8px;
  box-shadow: none;
}

.faq-item + .faq-item {
  border-top: 1px solid var(--line);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  gap: 16px;
  padding: 22px 14px;
  border: 0;
  color: var(--text);
  font: inherit;
  font-weight: 800;
  text-align: left;
  background: transparent;
  cursor: pointer;
}

.faq-question span {
  display: grid;
  flex: 0 0 auto;
  width: 30px;
  height: 30px;
  place-items: center;
  border-radius: 50%;
  color: #08101a;
  background: var(--text);
  transition: transform 0.2s ease;
}

.faq-item.active .faq-question span {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.25s ease;
}

.faq-answer p {
  margin: 0;
  padding: 0 14px 22px;
  color: var(--muted);
  line-height: 1.7;
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 36px 0;
  background: #05070b;
}

.footer-layout {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 24px;
  align-items: center;
}

.social-links {
  display: flex;
  gap: 10px;
}

.social-links a {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--muted);
  font-size: 0.86rem;
  font-weight: 700;
}

.footer-layout > p {
  justify-self: end;
  margin: 0;
  color: var(--muted);
  font-size: 0.86rem;
  text-align: right;
}

.reveal {
  transform: translateY(22px);
  opacity: 0;
  transition: opacity 0.55s ease, transform 0.55s ease;
}

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

@media (max-width: 1080px) {
  .hero-layout,
  .split-heading,
  .faq-layout {
    grid-template-columns: 1fr;
  }

  .hero-card {
    max-width: 560px;
  }

  .speaker-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .program-list {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 840px) {
  .top-strip {
    display: none;
  }

  .navbar {
    min-height: 72px;
  }

  .menu-button {
    display: block;
  }

  .nav-menu {
    position: fixed;
    top: 72px;
    right: 20px;
    left: 20px;
    display: grid;
    padding: 10px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: rgba(8, 11, 16, 0.97);
    box-shadow: var(--shadow);
    transform: translateY(-10px);
    visibility: hidden;
    opacity: 0;
    backdrop-filter: blur(18px);
    transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s ease;
  }

  .nav-menu.open {
    transform: translateY(0);
    visibility: visible;
    opacity: 1;
  }

  .nav-menu a {
    justify-content: center;
    min-height: 48px;
  }

  .hero {
    min-height: auto;
    padding-top: 128px;
  }

  .hero-layout {
    min-height: auto;
  }

  .countdown,
  .sponsor-row,
  .sponsor-row.large,
  .sponsor-row.compact {
    grid-template-columns: repeat(2, 1fr);
  }

  .sponsor-block {
    grid-template-columns: 1fr;
  }

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

  .footer-layout {
    grid-template-columns: 1fr;
    justify-items: start;
  }

  .footer-layout > p {
    justify-self: start;
    text-align: left;
  }
}

@media (max-width: 580px) {
  .container,
  .navbar {
    width: min(100% - 28px, 1160px);
  }

  .brand-logo {
    width: clamp(160px, 50vw, 250px);
  }

  h1 {
    font-size: clamp(2.65rem, 16vw, 4.1rem);
  }

  .section,
  .countdown-section,
  .apply-section {
    padding: 66px 0;
  }

  .hero-actions,
  .button,
  .apply-panel {
    width: 100%;
  }

  .apply-panel {
    align-items: stretch;
    flex-direction: column;
  }

  .countdown,
  .speaker-grid,
  .sponsor-row,
  .sponsor-row.large,
  .sponsor-row.compact,
  .gallery-grid {
    grid-template-columns: 1fr;
  }

  .gallery-grid {
    grid-auto-rows: 210px;
  }

  .gallery-grid .wide {
    grid-column: auto;
  }

  .day-card li {
    grid-template-columns: 112px 1fr;
    padding: 16px;
  }
}