/*
  PURPOSE
  - Warm, clean, "credible startup" styling with minimal complexity.
  WHY
  - Looks professional for interns/devs without distracting from the mobile app.
  NOTES
  - Pure CSS, no frameworks. Easy to tweak later.
*/

:root {
  --bg: #0b0c10;
  --panel: rgba(255, 255, 255, 0.06);
  --panel-strong: rgba(255, 255, 255, 0.09);
  --text: rgba(255, 255, 255, 0.92);
  --muted: rgba(255, 255, 255, 0.72);
  --soft: rgba(255, 255, 255, 0.12);
  --brand: rgba(255, 255, 255, 0.92);
  --shadow: 0 18px 60px rgba(0, 0, 0, 0.35);

  --radius: 16px;
  --radius-sm: 12px;

  --container: 1120px;

  --font: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji",
    "Segoe UI Emoji";
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  font-family: var(--font);
  background: radial-gradient(1200px 600px at 20% 10%, rgba(255, 255, 255, 0.12), transparent 60%),
    radial-gradient(900px 500px at 80% 30%, rgba(255, 255, 255, 0.08), transparent 60%),
    var(--bg);
  color: var(--text);
}

a {
  color: var(--brand);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(10px);
  background: rgba(11, 12, 16, 0.72);
  border-bottom: 1px solid var(--soft);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
  gap: 12px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.brand:hover {
  text-decoration: none;
}

.brand-mark {
  width: 36px;
  height: 36px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.18);
  font-weight: 800;
}

.brand-name {
  font-weight: 800;
  letter-spacing: 0.2px;
}

.nav {
  display: flex;
  align-items: center;
  gap: 18px;
}

.nav a {
  color: var(--muted);
  font-weight: 600;
  font-size: 14px;
}

.nav a:hover {
  color: var(--text);
  text-decoration: none;
}

.nav-cta {
  padding: 10px 12px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.16);
}

.menu-btn {
  display: none;
  background: transparent;
  color: var(--text);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 12px;
  padding: 8px 10px;
  cursor: pointer;
}

.mobile-nav {
  border-top: 1px solid var(--soft);
  background: rgba(11, 12, 16, 0.86);
}

.mobile-nav-inner {
  display: grid;
  gap: 10px;
  padding: 14px 0 16px;
}

.mobile-nav a {
  color: var(--muted);
  font-weight: 700;
  padding: 10px 12px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.mobile-nav a:hover {
  color: var(--text);
  text-decoration: none;
}

.hero {
  padding: 58px 0 26px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.35fr 0.65fr;
  gap: 28px;
  align-items: start;
}

.eyebrow {
  color: var(--muted);
  font-weight: 700;
  letter-spacing: 0.4px;
  margin: 0 0 10px;
}

h1 {
  font-size: clamp(34px, 4.2vw, 56px);
  line-height: 1.05;
  margin: 0 0 14px;
}

.lead {
  color: var(--muted);
  font-size: 16px;
  line-height: 1.65;
  margin: 0 0 20px;
  max-width: 62ch;
}

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin: 0 0 18px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 14px;
  padding: 12px 14px;
  font-weight: 800;
  font-size: 14px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  text-decoration: none;
  cursor: pointer;
  user-select: none;
}

.btn:hover {
  text-decoration: none;
}

.btn.primary {
  background: rgba(255, 255, 255, 0.92);
  color: #0b0c10;
  border-color: rgba(255, 255, 255, 0.92);
}

.btn.ghost {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
}

.chips {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.chip {
  padding: 8px 10px;
  border-radius: 999px;
  color: var(--muted);
  font-weight: 700;
  font-size: 13px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.hero-card .card {
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.14);
  box-shadow: var(--shadow);
  padding: 18px;
}

.card-title {
  margin: 0 0 10px;
  font-size: 16px;
}

.card-list {
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.7;
}

.card-foot {
  display: flex;
  justify-content: space-between;
  margin-top: 14px;
}

.mini-link {
  color: var(--text);
  font-weight: 800;
  font-size: 13px;
}

.section {
  padding: 54px 0;
}

.section.alt {
  background: rgba(255, 255, 255, 0.03);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.section h2 {
  margin: 0 0 10px;
  font-size: 28px;
}

.section-lead {
  margin: 0 0 22px;
  color: var(--muted);
  line-height: 1.65;
  max-width: 72ch;
}

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

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

.mt {
  margin-top: 14px;
}

.feature,
.role,
.about-card,
.contact-item,
.callout,
.apply-box {
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  padding: 16px;
}

.feature h3,
.role h3 {
  margin: 0 0 8px;
}

.feature p,
.role ul,
.role li {
  color: var(--muted);
  line-height: 1.65;
}

.role ul {
  margin: 10px 0 0;
  padding-left: 18px;
}

.timeline {
  display: grid;
  gap: 12px;
  margin-top: 10px;
}

.step {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 12px;
  align-items: start;
  padding: 14px;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.step-badge {
  width: 36px;
  height: 36px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  font-weight: 900;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.16);
}

.step-body h3 {
  margin: 0 0 6px;
}

.step-body p {
  margin: 0;
  color: var(--muted);
  line-height: 1.65;
}

.callout {
  margin-top: 14px;
}

.callout p {
  margin: 0;
  color: var(--muted);
  line-height: 1.65;
}

.two-col {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 14px;
  align-items: start;
}

.about-card h3 {
  margin: 0 0 10px;
}

.apply-box h3 {
  margin: 0 0 10px;
}

.apply-box p {
  margin: 0 0 12px;
  color: var(--muted);
  line-height: 1.65;
}

.fine {
  margin-top: 10px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.58);
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.site-footer {
  padding: 22px 0;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  color: rgba(255, 255, 255, 0.6);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 16px;
  font-size: 13px;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.72);
  font-weight: 800;
}

/* Responsive */
@media (max-width: 920px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }
  .two-col {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 820px) {
  .grid-3 {
    grid-template-columns: 1fr;
  }
  .grid-2 {
    grid-template-columns: 1fr;
  }
  .contact-grid {
    grid-template-columns: 1fr;
  }
  .nav {
    display: none;
  }
  .menu-btn {
    display: inline-flex;
  }
}