:root {
  --bg: #0b0e14;
  --surface: #111623;
  --border: #1f2638;
  --text: #e6eaf2;
  --muted: #9aa3b2;
  --accent: #0078B4;
  --radius: 14px;
  --max: 1100px;
}

[data-theme="light"] {
  --bg: #f8f9fb;
  --surface: #ffffff;
  --border: #e0e3eb;
  --text: #0b0e14;
  --muted: #6b7280;
  --accent: #00405F;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

html, body {
  height: 100%;
}

body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}

/* =========================
   GLOBAL
   ========================= */

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

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

main {
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
}

/* =========================
   NAV
   ========================= */

.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  letter-spacing: 0.08em;
  font-size: 13px;
}

.brand img {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  border: 1px solid var(--border);
}

.pill {
  font-size: 11px;
  padding: 4px 8px;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--muted);
}

.links {
  display: flex;
  gap: 20px;
  font-size: 13px;
  color: var(--muted);
}

.nav-actions {
  display: flex;
  gap: 10px;
}

/* =========================
   BUTTONS (SUBTLE + SHARP)
   ========================= */

.btn {
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text);
  padding: 10px 14px;
  border-radius: 10px;
  cursor: pointer;
  transition: transform 0.15s ease, border-color 0.15s ease;
}

.btn:hover {
  transform: translateY(-1px);
  border-color: var(--accent);
}

.btn.primary {
  border-color: var(--accent);
  color: var(--accent);
}

.btn.primary:hover {
  background: rgba(0, 64, 255, 0.08);
}

/* =========================
   HERO
   ========================= */

.hero {
  padding: 80px 0 40px;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 48px;
}

.kicker {
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.title {
  margin: 16px 0;
  font-size: clamp(44px, 6vw, 68px);
  line-height: 1;
  font-weight: 700;
}

.sub {
  max-width: 52ch;
  color: var(--muted);
}

/* =========================
   SECTIONS
   ========================= */

.section {
  padding: 72px 0;
  border-top: 1px solid var(--border);
}

.section-head h2 {
  margin: 0;
  font-size: 26px;
  font-weight: 600;
}

.section-head p {
  margin-top: 10px;
  max-width: 70ch;
  color: var(--muted);
}

/* =========================
   GRID / CARDS
   ========================= */

.grid {
  display: grid;
  gap: 16px;
  margin-top: 24px;
}

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

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

/* Carousel for posts (arrows + horizontal scroll) */
.carousel {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 24px;
}
.carousel-track {
  overflow: hidden;
  flex: 1 1 auto;
}
.carousel-list {
  display: flex;
  gap: 16px;
  transition: transform 0.36s ease;
  will-change: transform;
  padding: 6px 2px;
}
.carousel-list .post {
  flex: 0 0 auto;
  width: 320px;
}
.carousel-btn {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 8px 12px;
  border-radius: 10px;
  cursor: pointer;
  font-size: 20px;
  line-height: 1;
}
.carousel-btn[disabled] {
  opacity: 0.4;
  cursor: default;
}

.panel,
.post,
.form,
.tick,
.sponsor-slot {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0px;
  padding: 15px;
  transition: transform 0.15s ease, border-color 0.15s ease;
}

.sponsor-slot {
  padding: 0;
}

/* KEEP THIS — hover effect you liked */
.panel:hover,
.post:hover,
.sponsor-slot:hover {
  transform: translateY(-2px);
  border-color: var(--accent);
}

/* =========================
   POSTS
   ========================= */

.post-tag {
  font-size: 11px;
  color: var(--muted);
  border: 1px solid var(--border);
  padding: 4px 10px;
  border-radius: 999px;
  display: inline-block;
}

.post h3 {
  margin: 12px 0 6px;
  font-size: 16px;
}

.post p {
  margin: 0 0 10px;
  color: var(--muted);
}

.link {
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
}

/* =========================
   TIMELINE
   ========================= */

.tick {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.dot {
  width: 10px;
  height: 10px;
  margin-top: 6px;
  border-radius: 50%;
  background: var(--accent);
}

/* =========================
   SPONSORS
   ========================= */

.sponsor-wall {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 20px;
}

.sponsor-slot {
  height: 90px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0 12px;
}

.sponsor-slot img {
  width: auto;
  display: block;
}

.sponsor-slot .sponsor-name {
  display: inline-block;
}

/* =========================
   FORM
   ========================= */

.form .row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

label span {
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  display: block;
  margin-bottom: 6px;
}

input, textarea {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px;
  color: var(--text);
}

input:focus,
textarea:focus {
  outline: none;
  border-color: var(--accent);
}

/* =========================
   FOOTER
   ========================= */

.footer {
  padding: 40px 0;
  border-top: 1px solid var(--border);
  color: var(--muted);
  display: flex;
  justify-content: space-between;
  gap: 12px;
}

/* Social icons in footer */
.social {
  display: flex;
  align-items: center;
  gap: 10px;
}

.social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  color: var(--muted);
  border-radius: 8px;
  border: 1px solid var(--border);
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.social-link:hover {
  color: var(--accent);
  border-color: var(--accent);
  background: rgba(0, 64, 95, 0.06);
}

.social svg { display: block; }

/* =========================
   REVEAL (STAYS)
   ========================= */

.reveal {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* =========================
   CURSOR GLOW (SUBTLE)
   ========================= */

#cursor-glow {
  position: fixed;
  top: 0;
  left: 0;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  pointer-events: none;
  background: radial-gradient(
    circle,
    rgba(0, 64, 95, 0.12) 0%,
    rgba(0, 64, 95, 0.08) 30%,
    rgba(0, 64, 95, 0.04) 50%,
    transparent 70%
  );
  transform: translate(-50%, -50%);
  z-index: 0;
  opacity: 0;
  transition: opacity 0.2s ease;
}

/* show glow only when moving */
body:hover #cursor-glow {
  opacity: 1;
}

/* =========================
   HERO ALIGNMENT FIXES
   ========================= */

.hero-left {
  display: flex;
  flex-direction: column;
  gap: 18px;
  max-width: 640px;
}

.hero-actions {
  display: flex;
  gap: 12px;
  margin-top: 10px;
}

.btn.subtle {
  border-color: transparent;
  color: var(--muted);
}

.btn.subtle:hover {
  color: var(--text);
  border-color: var(--border);
}

/* meta stats */
.hero-meta {
  display: flex;
  gap: 24px;
  margin-top: 8px;
}

.meta-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.meta-item strong {
  font-size: 18px;
  font-weight: 600;
}

.meta-item span {
  font-size: 12px;
  color: var(--muted);
}

.hero-right {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}

.floating-cards {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* =========================
   ROBOT VIEWER
   ========================= */

#robot-viewer {
  width: 100%;
  height: 420px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  position: relative;
  overflow: hidden;
}

/* =========================
   RESPONSIVE
   ========================= */

@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
  }
  .links {
    display: none;
  }
}

@media (max-width: 700px) {
  .grid.two,
  .grid.three {
    grid-template-columns: 1fr;
  }
  .carousel-list .post {
    width: 100%;
  }
  .form .row {
    grid-template-columns: 1fr;
  }
  .footer {
    flex-direction: column;
  }
}