@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500;600&family=Press+Start+2P&display=swap');

:root {
  --bg-main: #060a1b;
  --bg-alt: #0e142a;
  --bg-card: #18203c;
  --bg-card-top: rgba(32, 45, 86, 0.85);
  --bg-card-bottom: rgba(14, 22, 44, 0.92);
  --text-primary: #f2f6ff;
  --text-secondary: #c7d0e9;
  --accent: #4f8cff;
  --accent-strong: #7dd3fc;
  --accent-pink: #36e1b6;
  --accent-soft: rgba(79, 140, 255, 0.18);
  --border-radius: 0;
  --pixel-border: 4px;
  --max-width: 1100px;
  --shadow-soft: 0 16px 0 #03030b;
  --shadow-card: 0 12px 0 #03030b;
  --font-body: 'IBM Plex Mono', 'Courier New', monospace;
  --font-display: 'Press Start 2P', 'Courier New', monospace;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--font-body);
  background-color: var(--bg-main);
  background-image:
    linear-gradient(var(--bg-alt) 3px, transparent 3px),
    linear-gradient(90deg, var(--bg-alt) 3px, transparent 3px),
    linear-gradient(180deg, rgba(24, 37, 78, 0.7) 0%, rgba(10, 16, 34, 0.95) 100%);
  background-size: 48px 48px, 48px 48px, 100% 100%;
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: auto;
  position: relative;
  min-height: 100vh;
  overflow-x: hidden;
  text-transform: none;
}

a { color: inherit; }
a:hover, a:focus { color: var(--accent); }

.hero {
  position: relative;
  padding: clamp(2.5rem, 5vw, 3.5rem);
  max-width: min(1180px, calc(100vw - 2.5rem));
  margin: clamp(2rem, 5vw, 4rem) auto;
  border: var(--pixel-border) solid var(--accent);
  border-radius: var(--border-radius);
  overflow: hidden;
  background:
    linear-gradient(160deg, rgba(31, 44, 90, 0.9) 0%, rgba(13, 20, 40, 0.95) 65%, rgba(9, 14, 32, 0.98) 100%);
  box-shadow: var(--shadow-soft);
  z-index: 2;
  opacity: 0;
  transform: translateY(30px);
  animation: fade-up 0.9s ease 0.1s forwards;
  image-rendering: pixelated;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(90deg, rgba(79, 140, 255, 0.08) 25%, transparent 25%, transparent 50%, rgba(79, 140, 255, 0.08) 50%, rgba(79, 140, 255, 0.08) 75%, transparent 75%, transparent),
    linear-gradient(rgba(125, 211, 252, 0.1) 25%, transparent 25%, transparent 50%, rgba(125, 211, 252, 0.1) 50%, rgba(125, 211, 252, 0.1) 75%, transparent 75%, transparent);
  background-size: 26px 26px;
  opacity: 0.6;
  pointer-events: none;
  z-index: 1;
}

.hero__inner {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.8rem;
  text-align: center;
}

/* LOGO STRIP — NST × S-VYASA */
.hero__logos {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(0.75rem, 2vw, 1.5rem);
  flex-wrap: wrap;
  width: 100%;
}

.presenter__brand {
  display: inline-flex;
  padding: clamp(0.7rem, 1.5vw, 1rem) clamp(1rem, 2vw, 1.25rem);
  background: #ffffff;
  border: var(--pixel-border) solid rgba(12, 59, 139, 0.85);
  box-shadow: 0 4px 0 rgba(12, 18, 44, 0.45);
  align-items: center;
  justify-content: center;
  margin: 0;
  flex: 0 0 auto;
}

.presenter__logo {
  height: auto;
  animation: logo-float 6s ease-in-out infinite;
  filter: none;
  max-width: 100%;
}
.presenter__logo--nst { width: clamp(180px, 30vw, 280px); }
.presenter__logo--svyasa { width: clamp(160px, 28vw, 240px); }

.hero__x {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4.5vw, 2.6rem);
  line-height: 1;
  color: var(--accent);
  text-shadow: 0 3px 0 #03030b;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding-inline: clamp(0.35rem, 0.9vw, 0.75rem);
  min-width: 1.5rem;
}

/* Hide the Kickstart square logo entirely */
.hero__logo--inline { display: none !important; }

.hero__copy {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  max-width: 36rem;
  align-items: center;
  text-align: center;
}

.presenter { display: none; }

.presenter__caption--center {
  margin: 0;
  font-family: var(--font-display);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.28em;
  color: var(--accent-strong);
  text-shadow: 0 2px 0 rgba(3, 3, 11, 0.45);
}

/* (kept for completeness; visuals below hero) */
.hero__visual {
  position: relative;
  min-height: 280px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(200deg, rgba(31, 44, 90, 0.4) 0%, rgba(15, 22, 46, 0.9) 80%);
  border: 1px solid rgba(79, 140, 255, 0.35);
  box-shadow: 0 25px 60px rgba(4, 9, 26, 0.35);
}
.hero__grid { position: absolute; inset: 0; background-image:
  linear-gradient(rgba(87, 178, 255, 0.06) 1px, transparent 1px),
  linear-gradient(90deg, rgba(87, 178, 255, 0.06) 1px, transparent 1px);
  background-size: 32px 32px; opacity: 0.35; image-rendering: pixelated; }
.hero__blob { position: absolute; width: 200px; height: 200px; top: 50%; left: 50%;
  transform: translate(-50%, -50%); background-image:
  linear-gradient(135deg, rgba(79, 140, 255, 0.45) 0%, rgba(125, 211, 252, 0.45) 55%, rgba(54, 225, 182, 0.35) 100%);
  border: 2px solid rgba(87, 178, 255, 0.4); box-shadow: inset -16px -16px 36px rgba(5, 9, 24, 0.55); }
.hero__orbit { position: absolute; border: var(--pixel-border) dashed rgba(79, 140, 255, 0.35); animation: none; image-rendering: pixelated; }
.hero__orbit--outer { width: 260px; height: 160px; top: 50%; left: 50%; transform: translate(-50%, -50%); }
.hero__orbit--inner { width: 160px; height: 120px; top: 50%; left: 50%; transform: translate(-50%, -50%); border-style: solid; border-color: rgba(125, 211, 252, 0.5); }
.hero__particle { position: absolute; display: block; width: 12px; height: 12px; background: rgba(125, 211, 252, 0.35); box-shadow: 0 0 12px rgba(125, 211, 252, 0.35); border-radius: 0; animation: pixel-flicker 1.4s steps(2) infinite; }
.hero__particle--one { top: 24%; left: 72%; animation-delay: 0s; }
.hero__particle--two { top: 68%; left: 24%; animation-delay: 0.4s; }
.hero__particle--three { top: 46%; left: 86%; animation-delay: 0.8s; }
.hero__grid, .hero__blob, .hero__orbit, .hero__particle { will-change: transform, opacity; }

.hero__logo { width: clamp(7rem, 20vw, 10rem); aspect-ratio: 1 / 1; position: relative; display: inline-flex; align-items: center; justify-content: center; filter: drop-shadow(0 25px 45px rgba(79, 140, 255, 0.25)); }
.hero__logo::after { content: ''; position: absolute; inset: -12%; background: radial-gradient(circle, rgba(255, 106, 193, 0.35), rgba(7, 10, 26, 0)); opacity: 0.6; filter: blur(6px); animation: logo-glow 6s ease-in-out infinite; }
.hero__logo img { width: 100%; height: 100%; display: block; image-rendering: pixelated; position: relative; z-index: 1; animation: pixel-logo-bounce 4.8s ease-in-out infinite; }

.badge {
  display: inline-flex; align-items: center; gap: 0.5rem; padding: 0.45rem 1rem;
  background: rgba(79, 140, 255, 0.1); color: var(--accent-strong); border-radius: 999px;
  border: 1px solid rgba(79, 140, 255, 0.35); letter-spacing: 0.12em; font-size: 0.72rem;
  text-transform: uppercase; font-family: var(--font-display); animation: badge-flicker 3.6s steps(2) infinite;
}

h1, h2, h3 { font-family: var(--font-display); letter-spacing: 0.01em; }
h1 {
  margin: 0; font-size: clamp(2.5rem, 5vw, 3.5rem); line-height: 1.1; font-weight: 700;
  color: var(--text-primary); text-shadow: 3px 3px 0 rgba(5, 9, 24, 0.7); animation: title-glow 5.5s ease-in-out infinite;
}
.hero__copy h1 { position: relative; }

.subtitle { font-size: 1.1rem; color: rgba(207, 216, 240, 0.95); max-width: 28rem; }

.hero__cta { display: flex; gap: 1rem; flex-wrap: wrap; }

.button {
  display: inline-flex; justify-content: center; align-items: center;
  border: var(--pixel-border) solid var(--accent); padding: 0.75rem 1.5rem; border-radius: 0;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-strong) 100%); color: #041225;
  font-weight: 600; text-decoration: none; transition: transform 0.1s steps(2), box-shadow 0.1s steps(2);
  box-shadow: 0 8px 0 #03030b; text-transform: uppercase;
}
.button:hover, .button:focus { transform: translateY(-4px); box-shadow: 0 12px 0 #03030b; }
.button--ghost { background: transparent; border-color: rgba(79, 140, 255, 0.45); color: var(--text-primary); box-shadow: 0 8px 0 #03030b; }
.button--contact { border-color: var(--accent-strong); }

.hero__stats { display: flex; gap: 1.5rem; padding: 0; list-style: none; margin: 0; }
.hero__stats li {
  min-width: 6rem; background: linear-gradient(180deg, rgba(20, 30, 56, 0.9), rgba(11, 17, 36, 0.95));
  border: 1px solid rgba(79, 140, 255, 0.35); padding: 0.75rem; text-align: center;
  box-shadow: 0 10px 30px rgba(4, 9, 26, 0.35);
}
.stat__value { display: block; font-size: 1.6rem; font-weight: 600; color: var(--accent); }
.stat__label { color: var(--text-secondary); text-transform: uppercase; font-size: 0.75rem; letter-spacing: 0.1em; }

@keyframes float { 0%, 100% { transform: translateY(0) scale(1); } 50% { transform: translateY(-15px) scale(1.02); } }
@keyframes pixel-flicker { 0%, 100% { opacity: 1; transform: translate3d(0, 0, 0); } 50% { opacity: 0.6; transform: translate3d(0, 2px, 0); } }
@keyframes orbit-glide { to { transform: translate(-50%, -50%) rotate(360deg); } }
@keyframes particle-drift {
  0%, 100% { transform: translate3d(0, 0, 0) scale(0.85); opacity: 0; }
  25% { opacity: 0.9; } 50% { transform: translate3d(12px, -26px, 0) scale(1.05); opacity: 0.6; }
  75% { transform: translate3d(-10px, -16px, 0) scale(0.9); opacity: 0.35; }
}
@keyframes logo-glow { 0%, 100% { opacity: 0.35; transform: scale(0.95); } 50% { opacity: 0.75; transform: scale(1.05); } }
@keyframes pixel-logo-bounce { 0%, 100% { transform: translateY(0) scale(1); } 40% { transform: translateY(-6px) scale(1.02); } 70% { transform: translateY(3px) scale(0.99); } }
@keyframes logo-float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-4px); } }
@keyframes title-glow {
  0%, 100% { color: var(--text-primary); text-shadow: 3px 3px 0 rgba(5, 9, 24, 0.7), 0 0 16px rgba(79, 140, 255, 0.35); }
  50% { color: var(--accent-strong); text-shadow: 3px 3px 0 rgba(5, 9, 24, 0.6), 0 0 20px rgba(54, 225, 182, 0.45); }
}
@keyframes badge-flicker {
  0%, 24%, 100% { opacity: 1; filter: drop-shadow(0 0 0 rgba(79, 140, 255, 0.35)); }
  26% { opacity: 0.6; } 28% { opacity: 1; filter: drop-shadow(0 0 10px rgba(125, 211, 252, 0.4)); }
  70% { opacity: 0.9; } 72% { opacity: 0.5; } 74% { opacity: 1; }
}

.section {
  padding: 4rem 1.5rem;
  position: relative;
  opacity: 0;
  transform: translateY(40px);
  animation: fade-up 0.9s ease forwards;
  z-index: 1;
  border-top: var(--pixel-border) solid var(--accent-strong);
  border-bottom: var(--pixel-border) solid #03030b;
  background: linear-gradient(180deg, rgba(86, 32, 78, 0.55), rgba(18, 31, 73, 0.75));
}
.section--alt { background: linear-gradient(180deg, rgba(38, 33, 82, 0.7), rgba(15, 25, 58, 0.85)); }

.section__content { max-width: var(--max-width); margin: 0 auto; }
.section__content > h2 {
  font-size: clamp(2rem, 4vw, 2.6rem);
  margin-top: 0; margin-bottom: 1.5rem; font-weight: 600; color: var(--accent); text-shadow: 3px 3px 0 #03030b;
}
.section__content > p { color: var(--text-secondary); max-width: 36rem; }

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 1.5rem; margin-top: 2rem; }

/* (Countdown block can remain unused safely) */
.countdown { display: flex; gap: 1.5rem; flex-wrap: wrap; margin-top: 2.5rem; padding: 1.5rem; border-radius: 0; background: rgba(16, 24, 46, 0.82); border: 1px solid rgba(79, 140, 255, 0.28); box-shadow: 0 18px 60px rgba(4, 9, 26, 0.35); justify-content: center; }
.countdown__unit { min-width: 90px; display: flex; flex-direction: column; align-items: center; gap: 0.35rem; padding: 0.4rem 0; }
.countdown__value { font-size: clamp(2rem, 5vw, 3.4rem); font-family: var(--font-body); font-weight: 600; letter-spacing: 0.08em; color: var(--text-primary); text-shadow: 0 4px 12px rgba(2, 6, 23, 0.55); }
.countdown__label { text-transform: uppercase; letter-spacing: 0.18em; font-size: 0.65rem; font-family: var(--font-display); color: rgba(125, 211, 252, 0.75); }
.countdown__note { margin-top: 1.75rem; }

.note { margin-top: 2rem; color: var(--text-secondary); font-size: 0.95rem; }

.card { background: linear-gradient(180deg, var(--bg-card-top), var(--bg-card-bottom)); border: var(--pixel-border) solid var(--accent-strong); border-radius: 0; padding: 1.5rem; box-shadow: var(--shadow-card); }


.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 1.5rem; }
.track { background: linear-gradient(180deg, var(--bg-card-top), var(--bg-card-bottom)); border: var(--pixel-border) solid var(--accent-strong); border-radius: 0; padding: 1.5rem; position: relative; overflow: hidden; }
.track::before { content: ''; position: absolute; inset: 0; background-image: linear-gradient(90deg, rgba(37, 99, 235, 0.15) 1px, transparent 1px), linear-gradient(rgba(248, 113, 113, 0.12) 1px, transparent 1px); background-size: 18px 18px; opacity: 0.45; pointer-events: none; }

/* Tracks section helper (optional headers & bullets) */
.tracks__list { list-style: none; padding: 0; margin: 0; display: grid; gap: 1rem; }
.tracks__item { padding: 1rem 1.25rem; background: linear-gradient(180deg, var(--bg-card-top), var(--bg-card-bottom)); border: var(--pixel-border) solid var(--accent-strong); box-shadow: var(--shadow-card); }

/* Timeline (unchanged) */
.timeline { display: grid; gap: 1.5rem; }
.timeline__item {
  padding: 1.5rem; border-radius: 0; background: linear-gradient(180deg, var(--bg-card-top), var(--bg-card-bottom));
  border: var(--pixel-border) solid var(--accent-strong); box-shadow: var(--shadow-card); position: relative; overflow: hidden;
}
.timeline__time { font-size: 0.85rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--accent); margin-bottom: 0.5rem; }
.timeline__item::after { content: ''; position: absolute; inset: 0; background-image: linear-gradient(90deg, rgba(37, 99, 235, 0.12) 1px, transparent 1px), linear-gradient(rgba(248, 113, 113, 0.1) 1px, transparent 1px); background-size: 20px 20px; opacity: 0.4; pointer-events: none; }

.guidelines { margin: 1.75rem 0 0; padding-left: 1.25rem; color: var(--text-secondary); font-size: 1rem; }
.guidelines li { margin-bottom: 0.85rem; color: var(--text-primary); background: linear-gradient(180deg, var(--bg-card-top), var(--bg-card-bottom)); padding: 0.85rem 1rem; border: var(--pixel-border) solid var(--accent-strong); box-shadow: 0 8px 0 #03030b; }

.prizes { list-style: none; padding: 0; margin: 0; display: grid; gap: 1rem; }
.prizes li { padding: 1.25rem 1.5rem; background: linear-gradient(180deg, var(--bg-card-top), var(--bg-card-bottom)); border-radius: 0; border: var(--pixel-border) solid var(--accent-strong); box-shadow: var(--shadow-card); }
.prize__title { display: block; font-weight: 600; color: var(--accent); margin-bottom: 0.35rem; }

.faq details { background: linear-gradient(180deg, var(--bg-card-top), var(--bg-card-bottom)); border-radius: 0; border: var(--pixel-border) solid var(--accent-strong); margin-bottom: 0.75rem; padding: 1rem 1.25rem; transition: transform 0.15s steps(2); box-shadow: var(--shadow-card); }
.faq summary { cursor: pointer; font-weight: 600; text-transform: uppercase; letter-spacing: 0.08em; }
.faq details[open] { transform: translateY(-4px); box-shadow: 0 16px 0 #03030b; }

.section--register {
  background: linear-gradient(180deg, var(--bg-card-top), var(--bg-card-bottom));
  position: relative; overflow: hidden; border: var(--pixel-border) solid var(--accent); box-shadow: var(--shadow-card);
}
.section--register::before {
  content: ''; position: absolute; inset: 0;
  background-image: linear-gradient(90deg, rgba(37, 99, 235, 0.12) 1px, transparent 1px), linear-gradient(rgba(248, 113, 113, 0.12) 1px, transparent 1px);
  background-size: 20px 20px; opacity: 0.4; pointer-events: none;
}
.section--register .section__content { position: relative; }

/* Embedded Google Form: responsive first, with your old fixed-height as fallback */
.form-embed {
  margin-top: 2rem;
  background: linear-gradient(180deg, rgba(79, 140, 255, 0.12), rgba(12, 20, 49, 0.92));
  border-radius: 0; border: var(--pixel-border) solid var(--accent); box-shadow: var(--shadow-soft); overflow: hidden;
}
.form-embed iframe { width: 100%; height: 720px; display: block; } /* fallback */
@supports (aspect-ratio: 1 / 1) {
  .form-embed { aspect-ratio: 16 / 14; }
  .form-embed iframe { height: 100%; }
}

/* Form card and fields */
.form-card { padding: 1rem 1.25rem; background: linear-gradient(180deg, rgba(11,18,36,0.6), rgba(8,12,26,0.75)); border: 1px solid rgba(255,255,255,0.03); margin: 0.75rem auto; }
.form-section { max-width: var(--max-width); margin: 0 auto; padding: 1rem; }
.form-section__intro h1, .form-section__intro p { text-align: left; }
.form-toggle { display: flex; gap: 0.5rem; margin-bottom: 1rem; }
.form-toggle__button { padding: 0.35rem 0.6rem; background: rgba(255,255,255,0.03); border: 1px solid rgba(255,255,255,0.04); color: var(--text-primary); cursor: pointer; }
.form-toggle__button.is-active, .form-toggle__button:focus { background: var(--accent); color: #041225; }
.form-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0.75rem 1rem; align-items: start; }
.form-grid--members { grid-template-columns: 1fr; }
.form-field { display: flex; flex-direction: column; gap: 0.35rem; margin-bottom: 0.5rem; }
.form-field span { font-size: 0.8rem; color: var(--text-secondary); }
.field-error { color: #ffd6d6; background: rgba(255, 13, 53, 0.04); padding: 0.25rem 0.45rem; border-radius: 3px; margin-top: 0.35rem; display: inline-block; font-size: 0.78rem; }
.form-field input[type="text"], .form-field input[type="email"], .form-field input[type="tel"], .form-field input[type="url"], .form-field textarea {
  width: 100%; padding: 0.45rem 0.6rem; border: 1px solid rgba(255,255,255,0.06); background: rgba(255,255,255,0.02); color: var(--text-primary); font-family: var(--font-body);
}
.form-field textarea { min-height: 80px; resize: vertical; }
.form-field input:focus, .form-field textarea:focus { outline: 3px solid rgba(79,140,255,0.24); box-shadow: 0 0 0 4px rgba(79,140,255,0.06); border-color: var(--accent-strong); }
.form-field input, .form-field textarea { font-size: 0.95rem; }
.form-fieldset { border: 1px solid rgba(255,255,255,0.06); padding: 0.75rem; margin: 0.75rem 0; }
.member-card { padding: 0.6rem; border: 1px solid rgba(255,255,255,0.04); background: rgba(255,255,255,0.01); }

.button { display: inline-block; padding: 0.6rem 1rem; }

.form-alert { margin-top: 1rem; padding: 0.6rem 0.8rem; border: 1px solid rgba(255,255,255,0.04); background: rgba(79,140,255,0.08); color: var(--text-primary); }

.admin-table table { width: 100%; border-collapse: collapse; }
.admin-table th, .admin-table td { border: 1px solid rgba(255,255,255,0.04); padding: 0.5rem; text-align: left; vertical-align: top; font-size: 0.9rem; }
.admin-table thead th { background: rgba(10,16,32,0.6); }

@media (max-width: 880px) {
  .form-grid { grid-template-columns: 1fr; }
  .hero, .section__content { padding-left: 1rem; padding-right: 1rem; }
  .button { width: 100%; text-align: center; padding: 0.8rem 1rem; }
  .presenter__logo--nst { width: clamp(180px, 52vw, 280px); }
  .presenter__logo--svyasa { width: clamp(160px, 48vw, 240px); }
}

.footer {
  padding: 2rem 1.5rem 3rem;
  background: linear-gradient(180deg, rgba(15, 19, 42, 0.92), rgba(7, 9, 24, 0.98));
  position: relative;
  z-index: 1;
  border-top: var(--pixel-border) solid var(--accent);
  box-shadow: 0 -8px 0 #03030b;
}
.footer__content {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex; flex-wrap: wrap; gap: 1rem; justify-content: space-between; color: var(--text-secondary);
}

.background { position: fixed; inset: 0; pointer-events: none; z-index: 0; overflow: hidden; }
.background__particles { position: absolute; inset: 0; overflow: hidden; }
.background__particles .particle {
  position: absolute; width: 8px; height: 8px; border-radius: 0; background: var(--accent-strong);
  box-shadow: 0 0 0 4px rgba(255, 106, 193, 0.35); mix-blend-mode: normal;
  transform: translate3d(0, 0, 0) scale(var(--scale, 1)); animation: particle-travel var(--duration, 24s) steps(10) infinite;
  animation-delay: var(--delay, 0s); will-change: transform;
}
.background__particles .particle:nth-child(1)  { top: 12%; left: 8%;  --tx: 45vw; --ty: -35vh; --duration: 28s; --delay: -4s;  --scale: 0.9; }
.background__particles .particle:nth-child(2)  { top: 32%; left: 4%;  --tx: 30vw; --ty: -55vh; --duration: 32s; --delay: -7s;  --scale: 0.75; }
.background__particles .particle:nth-child(3)  { top: 58%; left: 12%; --tx: 36vw; --ty: -42vh; --duration: 26s; --delay: -11s; --scale: 0.95; }
.background__particles .particle:nth-child(4)  { top: 78%; left: 10%; --tx: 40vw; --ty: -52vh; --duration: 34s; --delay: -16s; --scale: 0.8; }
.background__particles .particle:nth-child(5)  { top: 18%; right: 15%; --tx: -38vw; --ty: -48vh; --duration: 29s; --delay: -3s;  --scale: 1.05; }
.background__particles .particle:nth-child(6)  { top: 44%; right: 6%; --tx: -28vw; --ty: -40vh; --duration: 31s; --delay: -9s;  --scale: 0.7; }
.background__particles .particle:nth-child(7)  { top: 70%; right: 20%; --tx: -30vw; --ty: -55vh; --duration: 33s; --delay: -14s; --scale: 0.85; }
.background__particles .particle:nth-child(8)  { top: 85%; right: 4%; --tx: -24vw; --ty: -50vh; --duration: 27s; --delay: -20s; --scale: 0.75; }
.background__particles .particle:nth-child(9)  { top: 26%; left: 46%; --tx: 25vw; --ty: -60vh; --duration: 30s; --delay: -6s;  --scale: 0.9; }
.background__particles .particle:nth-child(10) { top: 52%; left: 53%; --tx: 20vw; --ty: -58vh; --duration: 24s; --delay: -12s; --scale: 0.65; }
.background__particles .particle:nth-child(11) { top: 14%; left: 70%; --tx: -35vw; --ty: -48vh; --duration: 36s; --delay: -8s;  --scale: 1.1; }
.background__particles .particle:nth-child(12) { top: 48%; left: 30%; --tx: 30vw; --ty: -62vh; --duration: 22s; --delay: -4s;  --scale: 0.6; }
.background__particles .particle:nth-child(13) { top: 66%; left: 60%; --tx: -32vw; --ty: -45vh; --duration: 28s; --delay: -13s; --scale: 0.8; }
.background__particles .particle:nth-child(14) { top: 10%; right: 28%; --tx: -22vw; --ty: -65vh; --duration: 25s; --delay: -5s;  --scale: 0.7; }
.background__particles .particle:nth-child(15) { top: 72%; right: 24%; --tx: -40vw; --ty: -48vh; --duration: 35s; --delay: -18s; --scale: 1.0; }
.background__particles .particle:nth-child(16) { top: 92%; left: 36%; --tx: 28vw; --ty: -56vh; --duration: 29s; --delay: -10s; --scale: 0.85; }

.background__gradient { position: absolute; inset: 0; background-image:
  linear-gradient(90deg, rgba(37, 99, 235, 0.08) 1px, transparent 1px),
  linear-gradient(rgba(248, 113, 113, 0.08) 1px, transparent 1px);
  background-size: 24px 24px; animation: gradient-shift 12s steps(6) infinite; }
.background__grid { position: absolute; inset: -20% -20% 0; background-image: linear-gradient(rgba(79, 140, 255, 0.08) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 106, 193, 0.08) 1px, transparent 1px); background-size: 48px 48px; opacity: 0.3; transform: translateY(-10%); image-rendering: pixelated; }
.background__orb { display: none; }
.background__orb--one { top: 12%; right: -8%; }
.background__orb--two { bottom: -10%; left: -12%; animation-delay: 6s; }

.section:nth-of-type(1) { animation-delay: 0.2s; }
.section:nth-of-type(2) { animation-delay: 0.4s; }
.section:nth-of-type(3) { animation-delay: 0.6s; }
.section:nth-of-type(4) { animation-delay: 0.8s; }
.section:nth-of-type(5) { animation-delay: 1s; }
.section:nth-of-type(6) { animation-delay: 1.2s; }
.section:nth-of-type(7) { animation-delay: 1.4s; }
.section:nth-of-type(8) { animation-delay: 1.6s; }
.section:nth-of-type(9) { animation-delay: 1.8s; }

.timeline__item:nth-child(odd) { animation: float 8s ease-in-out infinite; }
.timeline__item:nth-child(even) { animation: float 9s ease-in-out infinite reverse; }

@keyframes fade-up { from { opacity: 0; transform: translateY(40px); } to { opacity: 1; transform: translateY(0); } }
@keyframes particle-travel { 0% { transform: translate3d(0, 0, 0) scale(var(--scale, 1)); } 100% { transform: translate3d(var(--tx, 0), var(--ty, -50vh), 0) scale(var(--scale, 1)); } }
@keyframes particle-twinkle { 0%, 100% { opacity: 0.15; transform: scale(0.85); } 40% { opacity: 0.8; transform: scale(1.05); } 60% { opacity: 0.35; } }
@keyframes gradient-shift { 0%, 100% { transform: scale(1) translate3d(0, 0, 0); } 50% { transform: scale(1.05) translate3d(0, -2%, 0); } }
@keyframes orb-drift { 0%, 100% { transform: translate3d(0, 0, 0) scale(1); opacity: 0.6; } 50% { transform: translate3d(40px, -40px, 0) scale(1.15); opacity: 0.85; } }
@keyframes shimmer { 0%, 100% { opacity: 0; transform: translate3d(-30px, 10px, 0) scale(0.8); } 40% { opacity: 0.35; } 50% { transform: translate3d(60px, -10px, 0) scale(1); opacity: 0; } }

@media (max-width: 720px) {
  :root { --pixel-border: 3px; }
  .hero { padding: 2.8rem 1.4rem 3.2rem; }
  h1 { font-size: clamp(2rem, 6.5vw, 2.8rem); text-shadow: 3px 3px 0 #03030b; }
  .section { padding: 3.25rem 1.25rem; }
  .section__content > h2 { font-size: clamp(1.6rem, 5vw, 2.2rem); text-shadow: 2px 2px 0 #03030b; }

  .hero__logos { flex-direction: row; justify-content: center; align-items: center; width: 100%; flex-wrap: wrap; gap: 0.9rem; }
  .presenter__brand, .hero__logo--inline { flex: 0 1 auto; }
  .presenter__brand { padding: 0.6rem 0.75rem; }
  .presenter__logo--nst { width: clamp(170px, 58vw, 260px); }
  .presenter__logo--svyasa { width: clamp(150px, 56vw, 220px); }
  .hero__x { font-size: clamp(1.6rem, 5.5vw, 2.2rem); padding-inline: 0.3rem; }
  .hero__logo--inline { display: none !important; }

  .hero__copy { max-width: 32rem; gap: 1.25rem; }
  .subtitle { font-size: 1rem; line-height: 1.55; }
  .hero__stats { flex-wrap: wrap; justify-content: center; gap: 1rem; }
  .hero__inner { gap: 1.8rem; }
  .hero__visual { min-height: 280px; order: 2; }
  .hero__cta { justify-content: center; width: 100%; gap: 0.75rem; }
  .hero__stats li { min-width: auto; width: 100%; max-width: 180px; padding: 0.65rem; }
  .button { width: 100%; max-width: 260px; }

  .card, .track, .timeline__item, .prizes li { padding: 1.25rem; }
  .guidelines li { padding: 0.75rem 0.9rem; }
  .faq details { padding: 0.85rem 1rem; }

  .form-embed iframe { height: 650px; }
  @supports (aspect-ratio: 1 / 1) {
    .form-embed { aspect-ratio: 16 / 20; }
  }

  .countdown { padding: 1.25rem; gap: 1rem; }
  .countdown__unit { min-width: 72px; padding: 0.55rem 0.6rem; }
}

@media (max-width: 640px) {
  .hero__logos {
    display: grid;
    grid-template-columns: 1fr;
    grid-auto-rows: auto;
    justify-items: center;
    align-items: center;
    gap: 0.7rem;
  }
  .hero__x {
    grid-row: 2;
    justify-self: center;
    align-self: center;
  }
}

@media (max-width: 480px) {
  :root { --pixel-border: 2.5px; }
  .hero { padding: 2.6rem 0.9rem 2.9rem; }
  h1 { font-size: clamp(1.75rem, 8vw, 2.3rem); }
  .section { padding: 2.75rem 1rem; }
  .section__content > h2 { font-size: clamp(1.5rem, 6vw, 2rem); }

  .countdown { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); justify-items: center; gap: 0.85rem; }
  .button { max-width: none; }

  .hero__logos {
    display: grid;
    grid-template-columns: 1fr;
    grid-auto-rows: auto;
    justify-items: center;
    gap: 0.7rem;
  }
  .presenter__brand {
    padding: 0.55rem 0.65rem;
    width: min(82vw, 240px);
    justify-content: center;
  }
  .presenter__logo--nst { width: min(72vw, 220px); }
  .presenter__logo--svyasa { width: min(70vw, 210px); }
  .hero__x {
    display: inline-block;
    font-size: clamp(1.4rem, 8vw, 2rem);
    padding-inline: 0.2rem;
    grid-row: 2;
    justify-self: center;
  }

  .hero__stats li { box-shadow: 0 6px 0 #03030b; }
  .card, .track, .timeline__item, .prizes li { padding: 1.1rem; }
  .guidelines li { padding: 0.65rem 0.8rem; }
  .faq details { padding: 0.75rem 0.9rem; }

  .countdown__unit { min-width: 0; width: 100%; padding: 0.45rem 0.4rem; }
  .hero__visual { min-height: 220px; }
  .form-embed iframe { height: 520px; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
}