:root {
  /* Palette drawn from background.png:
     base  #000016  electric-blue #4200f2  violet #8416c6  hot-pink #dc429a  magenta #f24284 */
  --bg: #000016;
  --bg-soft: #0a0030;
  --surface: rgba(18, 2, 52, 0.72);
  --surface-strong: rgba(22, 2, 66, 0.94);
  --surface-border: rgba(180, 48, 220, 0.18);
  --text: #fdf4ff;
  --muted: #c0a0d8;
  --muted-strong: #e8d4f8;
  --primary: #6210f0;
  --primary-strong: #9000c8;
  --accent: #e03898;
  --success: #ff72cc;
  --shadow: 0 30px 80px rgba(0, 0, 20, 0.70);
  --radius-sm: 18px;
  --radius-md: 24px;
  --radius-lg: 32px;
  --container: 1160px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(ellipse at 15% 45%, rgba(44, 0, 242, 0.55), transparent 45%),
    radial-gradient(ellipse at 88% 12%, rgba(220, 66, 154, 0.50), transparent 38%),
    radial-gradient(ellipse at 55% 88%, rgba(110, 22, 198, 0.42), transparent 42%),
    #000016;
}

::selection {
  background: rgba(98, 16, 240, 0.42);
  color: var(--text);
}

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

button,
input,
textarea,
select {
  font: inherit;
}

img,
svg,
video,
canvas {
  display: block;
  max-width: 100%;
}

button {
  border: 0;
  background: transparent;
  color: inherit;
}

.skip-link,
.visually-hidden {
  position: absolute;
}

.skip-link {
  top: -100px;
  left: 16px;
  z-index: 1000;
  padding: 0.8rem 1.1rem;
  border-radius: 999px;
  background: #ffffff;
  color: #09101f;
}

.skip-link:focus {
  top: 16px;
}

.visually-hidden {
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

:focus-visible {
  outline: 2px solid rgba(57, 208, 255, 0.92);
  outline-offset: 4px;
}

.page-shell {
  overflow: clip;
}

.container {
  width: min(calc(100% - 2rem), var(--container));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(16px);
  background: rgba(3, 0, 24, 0.82);
  border-bottom: 1px solid rgba(180, 48, 220, 0.14);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.brand-mark {
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 14px;
  background:
    linear-gradient(135deg, #e03898 0%, #9000c8 52%, #4200f2 100%);
  box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.25), 0 10px 24px rgba(98, 16, 240, 0.45);
}

.brand-logo {
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 10px;
  object-fit: cover;
  display: block;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  color: var(--muted-strong);
}

.site-nav a:not(.button) {
  transition: color 180ms ease;
}

.site-nav a:not(.button):hover,
.site-nav a:not(.button):focus-visible {
  color: var(--text);
}

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 0.35rem;
  width: 3rem;
  height: 3rem;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.04);
  cursor: pointer;
}

.nav-toggle span:not(.visually-hidden) {
  width: 1.2rem;
  height: 2px;
  background: var(--text);
  border-radius: 999px;
  transition: transform 180ms ease, opacity 180ms ease;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 3.25rem;
  padding: 0.85rem 1.35rem;
  border-radius: 999px;
  font-weight: 600;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease, border-color 180ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-1px);
}

.button-primary {
  color: #fff;
  background: linear-gradient(135deg, #6210f0 0%, #9000c8 50%, #e03898 100%);
  box-shadow: 0 18px 34px rgba(98, 16, 240, 0.45);
}

.button-secondary,
.button-ghost {
  border: 1px solid rgba(180, 48, 220, 0.25);
  background: rgba(98, 16, 240, 0.08);
}

.button-secondary:hover,
.button-ghost:hover,
.button-secondary:focus-visible,
.button-ghost:focus-visible {
  background: rgba(98, 16, 240, 0.16);
  border-color: rgba(180, 48, 220, 0.40);
}

.hero-section {
  position: relative;
  padding: 5rem 0 2rem;
}

.hero-grid {
  display: grid;
  align-items: center;
  gap: 2.5rem;
  grid-template-columns: 1fr;
}

.hero-copy {
  max-width: 52rem;
  margin: 0 auto;
  text-align: center;
}

.hero-copy .eyebrow {
  justify-content: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0 0 1rem;
  color: var(--accent);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.eyebrow::before {
  content: "";
  width: 2rem;
  height: 1px;
  background: rgba(224, 56, 152, 0.85);
}

h1,
h2,
h3,
strong {
  letter-spacing: -0.04em;
}

h1 {
  margin: 0;
  font-size: clamp(2.8rem, 7vw, 5.25rem);
  line-height: 0.98;
}

h2 {
  margin: 0;
  font-size: clamp(2rem, 5vw, 3.35rem);
  line-height: 1.04;
}

h3 {
  margin: 0 0 0.65rem;
  font-size: 1.2rem;
}

p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

.hero-text,
.section-heading p,
.showcase-copy > p,
.faq-copy p,
.cta-banner p {
  font-size: 1.05rem;
}

.hero-text {
  margin: 1.5rem auto 0;
  max-width: 36rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
  margin-top: 2rem;
}

.reg-status {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  margin-top: 1.1rem;
  padding: 0.6rem 1rem;
  border-radius: 999px;
  border: 1px solid rgba(57, 208, 255, 0.2);
  background: rgba(57, 208, 255, 0.07);
  color: var(--muted);
  font-size: 0.9rem;
}

.reg-status strong {
  color: var(--accent);
  font-size: inherit;
  letter-spacing: normal;
}

.reg-status-dot {
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 999px;
  background: var(--accent);
  flex-shrink: 0;
  animation: pulse-dot 2.4s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.35; }
}

@media (prefers-reduced-motion: reduce) {
  .reg-status-dot { animation: none; }
}

.hero-proof {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  padding: 0;
  margin: 2.5rem auto 0;
  list-style: none;
}

.hero-proof li,
.feature-card,
.showcase-panel,
.stat-card,
.process-card,
.testimonial-card,
.faq-list details,
.cta-banner {
  border: 1px solid var(--surface-border);
  background: var(--surface);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}

.hero-proof li {
  display: grid;
  gap: 0.25rem;
  padding: 1.2rem;
  border-radius: var(--radius-md);
}

.hero-proof strong,
.stat-card strong {
  font-size: 1.4rem;
}

.hero-proof span {
  color: var(--muted);
  font-size: 0.95rem;
}

.showcase-panel-top,
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.pill {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
}

.pill {
  padding: 0.45rem 0.8rem;
  background: rgba(82, 214, 161, 0.16);
  color: #c3ffe7;
  font-size: 0.82rem;
  font-weight: 600;
}

.logo-strip {
  padding: 1.5rem 0 2rem;
}

.logo-strip-inner {
  padding: 1.2rem 1.5rem;
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.03);
}

.logo-strip-inner p {
  margin-bottom: 1rem;
}

.logo-list {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 1.5rem;
  color: rgba(245, 247, 255, 0.68);
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.content-section {
  padding: 4rem 0;
}

.alt-section {
  position: relative;
}

.alt-section::before {
  content: "";
  position: absolute;
  inset: 1.5rem 0;
  z-index: -1;
  background: linear-gradient(180deg, rgba(98, 16, 240, 0.06), transparent);
  border-top: 1px solid rgba(180, 48, 220, 0.12);
  border-bottom: 1px solid rgba(180, 48, 220, 0.12);
}

.section-heading {
  max-width: 42rem;
  margin: 0 auto 2.5rem;
  text-align: center;
}

.section-heading-left {
  margin-left: 0;
  text-align: left;
}

.section-heading h2,
.showcase-copy h2,
.faq-copy h2,
.cta-banner h2 {
  margin-bottom: 1rem;
}

.feature-grid,
.stats-grid,
.process-grid,
.testimonial-grid {
  display: grid;
  gap: 1.25rem;
}

.feature-grid,
.process-grid,
.testimonial-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.feature-card,
.process-card,
.testimonial-card,
.stat-card {
  padding: 1.6rem;
  border-radius: var(--radius-md);
}

.feature-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 3.1rem;
  height: 3.1rem;
  margin-bottom: 1rem;
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(224, 56, 152, 0.20), rgba(98, 16, 240, 0.30));
  color: var(--muted-strong);
  font-weight: 700;
}

.showcase-grid,
.faq-grid {
  display: grid;
  align-items: center;
  gap: 2rem;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
}

.showcase-panel {
  padding: 1.6rem;
  border-radius: var(--radius-lg);
}

.showcase-panel-top {
  margin-bottom: 1.4rem;
}

.workflow-list {
  display: grid;
  gap: 1rem;
}

.workflow-list article {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem;
  padding: 1.1rem;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.035);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.workflow-list span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 999px;
  background: rgba(124, 140, 255, 0.18);
  color: var(--muted-strong);
  font-weight: 700;
}

.check-list {
  display: grid;
  gap: 0.8rem;
  padding: 0;
  margin: 1.5rem 0 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding-left: 1.9rem;
  color: var(--muted-strong);
}

.check-list li::before {
  content: "✓";
  position: absolute;
  top: 0;
  left: 0;
  color: var(--success);
  font-weight: 700;
}

.stats-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: 2rem;
}

.stat-card {
  display: grid;
  gap: 0.6rem;
}

.stat-card span {
  color: var(--muted);
}

.process-grid {
  margin-top: 1.25rem;
}

.testimonial-card {
  display: grid;
  gap: 1.25rem;
}

.testimonial-card.highlight {
  background:
    linear-gradient(180deg, rgba(124, 140, 255, 0.16), rgba(17, 26, 54, 0.88));
}

.testimonial-card strong,
.footer-brand {
  display: block;
  margin-bottom: 0.2rem;
}

.testimonial-card span {
  color: var(--muted);
}

.faq-list {
  display: grid;
  gap: 1rem;
}

.faq-list details {
  padding: 1.3rem 1.4rem;
  border-radius: 22px;
}

.faq-list summary {
  cursor: pointer;
  list-style: none;
  font-weight: 600;
}

.faq-list summary::-webkit-details-marker {
  display: none;
}

.faq-list p {
  margin-top: 0.85rem;
}

.cta-section {
  padding: 2rem 0 4.5rem;
}

.cta-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 2rem;
  border-radius: var(--radius-lg);
  background:
    radial-gradient(circle at top right, rgba(220, 66, 154, 0.22), transparent 40%),
    linear-gradient(135deg, rgba(98, 16, 240, 0.22) 0%, rgba(22, 2, 66, 0.92) 80%);
}

.cta-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 1rem;
}

.site-footer {
  padding: 0 0 2.5rem;
}

.footer-inner {
  align-items: flex-end;
  padding-top: 1rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-inner p {
  margin-top: 0.9rem;
  max-width: 34rem;
}

.footer-meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 1rem 1.35rem;
  color: var(--muted);
}

@media (max-width: 1080px) {
  .hero-grid,
  .showcase-grid,
  .faq-grid,
  .feature-grid,
  .process-grid,
  .testimonial-grid {
    grid-template-columns: 1fr;
  }

  .stats-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .cta-banner,
  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .cta-actions,
  .footer-meta {
    justify-content: flex-start;
  }
}

@media (max-width: 780px) {
  .site-header {
    position: sticky;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .site-nav {
    position: absolute;
    top: calc(100% + 0.75rem);
    right: 1rem;
    left: 1rem;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 1rem;
    border-radius: 24px;
    background: rgba(6, 0, 30, 0.97);
    border: 1px solid rgba(180, 48, 220, 0.20);
    box-shadow: var(--shadow);
  }

  .site-nav.is-open {
    display: flex;
  }

  .site-nav .nav-cta {
    width: 100%;
  }

  .nav-toggle[aria-expanded="true"] span:first-of-type {
    transform: translateY(5px) rotate(45deg);
  }

  .nav-toggle[aria-expanded="true"] span:last-of-type {
    transform: translateY(-5px) rotate(-45deg);
  }

  .hero-section {
    padding-top: 3.5rem;
  }

  .hero-proof,
  .stats-grid {
    grid-template-columns: 1fr;
  }

  h1 {
    font-size: clamp(2.5rem, 12vw, 4rem);
  }
}

@media (max-width: 560px) {
  .container {
    width: min(calc(100% - 1.25rem), var(--container));
  }

  .nav-wrap {
    padding: 0.85rem 0;
  }

  .hero-section,
  .content-section {
    padding: 3rem 0;
  }

  .hero-actions,
  .cta-actions {
    flex-direction: column;
  }

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

  .feature-card,
  .showcase-panel,
  .stat-card,
  .process-card,
  .testimonial-card,
  .faq-list details,
  .cta-banner {
    border-radius: 22px;
  }
}

/* ==========================================================================
   Social links — nav + footer
   ========================================================================== */

.nav-social {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.social-link {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.5rem;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.07);
  background: rgba(255, 255, 255, 0.04);
  color: var(--muted-strong);
  font-size: 0.88rem;
  font-weight: 500;
  transition: color 180ms ease, background 180ms ease, border-color 180ms ease, transform 180ms ease;
}

.social-link:hover,
.social-link:focus-visible {
  color: var(--text);
  background: rgba(255, 255, 255, 0.09);
  border-color: rgba(255, 255, 255, 0.13);
  transform: translateY(-2px);
}

.footer-social {
  display: flex;
  gap: 0.65rem;
  margin-top: 1rem;
  flex-wrap: wrap;
}

.footer-social .social-link {
  padding: 0.5rem 0.85rem;
}

/* ==========================================================================
   Steps grid — competition process
   ========================================================================== */

.steps-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 1.25rem;
  margin-top: 2rem;
}

.step-card {
  padding: 1.6rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--surface-border);
  background: var(--surface);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  margin-bottom: 1rem;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--primary), var(--primary-strong));
  color: #fff;
  font-weight: 800;
  font-size: 0.9rem;
  letter-spacing: 0;
}

/* ==========================================================================
   Timeline
   ========================================================================== */

.timeline-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 2rem;
}

.timeline-item {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  padding: 1.4rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--surface-border);
  background: var(--surface);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}

.timeline-date {
  font-weight: 700;
  color: var(--accent);
  font-size: 0.88rem;
  letter-spacing: 0.02em;
}

.timeline-item h3 {
  margin: 0 0 0.2rem;
  font-size: 1.05rem;
}

.timeline-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.3rem 0.75rem;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 600;
  margin-top: auto;
  width: fit-content;
}

.timeline-upcoming {
  background: rgba(224, 56, 152, 0.14);
  color: var(--accent);
}

.timeline-winner {
  background: rgba(242, 66, 132, 0.18);
  color: #ff9ed4;
}

/* ==========================================================================
   Get Involved — sponsor + intern cards
   ========================================================================== */

.involve-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.involve-card {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding: 2rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--surface-border);
  background: var(--surface);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}

.involve-card-accent {
  background:
    radial-gradient(circle at top right, rgba(220, 66, 154, 0.22), transparent 40%),
    linear-gradient(135deg, rgba(98, 16, 240, 0.22) 0%, rgba(22, 2, 66, 0.92) 80%);
}

.involve-icon {
  font-size: 1.6rem;
  width: 3.5rem;
  height: 3.5rem;
}

.involve-card .button {
  align-self: flex-start;
  margin-top: auto;
}

/* ==========================================================================
   Responsive — new components
   ========================================================================== */

@media (max-width: 1080px) {
  .steps-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .timeline-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 780px) {
  .steps-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (max-width: 560px) {
  .steps-grid,
  .timeline-grid {
    grid-template-columns: 1fr;
  }

  .involve-card .button {
    align-self: stretch;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

@media print {
  body {
    background: #fff;
    color: #000;
  }

  .site-header,
  .nav-toggle,
  .logo-strip,
  .cta-section {
    display: none !important;
  }

  .hero-proof,
  .feature-grid,
  .process-grid,
  .testimonial-grid,
  .stats-grid,
  .showcase-grid,
  .faq-grid {
    grid-template-columns: 1fr;
  }

  .feature-card,
  .process-card,
  .testimonial-card,
  .stat-card,
  .faq-list details,
  .showcase-panel {
    box-shadow: none;
    border: 1px solid #ddd;
    background: #fff;
  }
}