/* ====== Design Tokens ====== */

:root {

  --bg: #0b0c10;

  --panel: rgba(22, 24, 29, 0.7);

  --text: #e8eaf0;

  --muted: #a6adbb;

  --brand: #7c5cff;

  --brand-2: #19c5b8;

  --border: rgba(255, 255, 255, 0.08);

  --shadow: 0 10px 30px rgba(0,0,0,0.35);

  --radius: 14px;

  --backdrop: blur(12px);

  --container: 1100px;

}



@media (prefers-color-scheme: light) {

  :root { --bg:#f4f6fb; --panel: rgba(255,255,255,0.7); --text:#0c0f14; --muted:#4b5563; --border: rgba(0,0,0,0.08); }

}



* { box-sizing: border-box; }

html, body { height: 100%; }

body {

  margin: 0;

  font: 16px/1.5 ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";

  color: var(--text);

  background: radial-gradient(1200px 800px at 80% -10%, rgba(124,92,255,0.25), transparent 40%),

              radial-gradient(900px 700px at -10% 20%, rgba(25,197,184,0.2), transparent 45%),

              var(--bg);

  background-repeat: no-repeat;

  background-attachment: fixed;

  background-size: cover;

  min-height: 100vh;

}



html {

  scrollbar-gutter: stable;

}



a {

  color: var(--brand); /* your purple brand color */

  text-decoration: none; /* remove underline */

  font-weight: 500;

  transition: color 0.2s ease, border-bottom 0.2s ease;

  border-bottom: 1px solid transparent;

}



a:hover {

  color: var(--brand-2); /* your turquoise brand color */

  border-bottom: 1px solid var(--brand-2); /* subtle hover underline */

}



a:visited {

  color: var(--brand); /* keep same color after visit */

}



/* ====== Layout Helpers ====== */

.container { max-width: var(--container); margin: 0 auto; padding: 0 20px; }



/* ====== Header / Navbar ====== */

header {

  position: sticky; top: 0; z-index: 50;

  backdrop-filter: var(--backdrop);

  background: linear-gradient(180deg, rgba(10,11,16,.85), rgba(10,11,16,.6));

  border-bottom: 1px solid var(--border);

}

.nav {

  display: grid;

  grid-template-columns: 1fr auto 1fr; /* center the nav group */

  align-items: center;

  gap: 12px;

  padding: 14px 0;

}

.brand {

  justify-self: start;

  display: flex; align-items: center; gap: 10px;

  font-weight: 700; letter-spacing: 0.3px;

}

.brand .logo {

  width: 28px; height: 28px; border-radius: 8px;

  background: linear-gradient(135deg, var(--brand), var(--brand-2));

  box-shadow: 0 6px 18px rgba(124,92,255,0.35);

}



/* Centered nav links */

.nav-links {

  list-style: none; margin: 0; padding: 0;

  display: flex; gap: 24px; justify-content: center; align-items: center;

}

.nav-links a {

  text-decoration: none;

  color: var(--text);

  padding: 10px 14px;

  border-radius: 10px;

  border: 1px solid transparent;

  transition: transform .15s ease, border-color .2s ease, background .2s ease, opacity .2s ease;

  opacity: 0.92;

}

.nav-links a:hover { border-color: var(--border); opacity: 1; }

.nav-links a.active { background: rgba(124,92,255,0.15); border-color: rgba(124,92,255,0.25); }



/* Right utilities */

.nav-right { justify-self: end; display: flex; align-items: center; gap: 10px; }

.btn {

  appearance: none; border: 1px solid var(--border); color: var(--text);

  background: var(--panel);

  padding: 8px 12px; border-radius: 10px; cursor: pointer;

  box-shadow: var(--shadow);

  transition: transform .15s ease, border-color .2s ease, background .2s ease;

}

.btn:hover { transform: translateY(-1px); border-color: rgba(255,255,255,0.18); }



/* ====== Mobile Nav (Hamburger) ====== */

.hamburger { display: none; position: relative; width: 40px; height: 36px; border-radius: 10px; border: 1px solid var(--border); background: var(--panel); }

.hamburger span, .hamburger::before, .hamburger::after {

  content: ""; position: absolute; left: 9px; right: 9px; height: 2px; background: var(--text);

  transition: transform .2s ease, opacity .2s ease, top .2s ease, bottom .2s ease; border-radius: 1px;

}

.hamburger span { top: 17px; }

.hamburger::before { top: 10px; }

.hamburger::after { bottom: 10px; }



.mobile-panel {

  display: none; position: absolute; left: 0; right: 0; top: 100%;

  background: rgba(12,13,18,0.95); border-bottom: 1px solid var(--border);

  backdrop-filter: var(--backdrop);

}

.mobile-links { list-style: none; margin: 0; padding: 12px; display: grid; gap: 6px; }

.mobile-links a { display: block; padding: 12px; text-decoration: none; color: var(--text); border-radius: 10px; border: 1px solid transparent; }

.mobile-links a:hover { border-color: var(--border); }



/* Toggle state */

.nav.open .mobile-panel { display: block; }

.nav.open .hamburger::before { transform: translateY(7px) rotate(45deg); }

.nav.open .hamburger::after { transform: translateY(-7px) rotate(-45deg); }

.nav.open .hamburger span { opacity: 0; }



/* ====== Main ====== */

main { padding: 40px 0 80px; }



.banner {

  display: block;

  margin: 0 auto;

  width: 100%;        /* take full width of container by default */

  max-width: 500px;   /* never go wider than this */

  height: auto;       /* keep aspect ratio */

}



.schedule-table {

  width: 100%;

  border-collapse: collapse;

  margin: 20px 0;

  font-size: 15px;

  background: var(--panel);

  border: 1px solid var(--border);

  border-radius: var(--radius);

  overflow: hidden;

  box-shadow: var(--shadow);

}



.schedule-table th,

.schedule-table td {

  padding: 10px 14px;

  text-align: left;

}



.schedule-table th {

  background-color: rgba(255, 255, 255, 0.05);

  color: var(--text);

  font-weight: bold;

}



.schedule-table tr {

  border-bottom: 1px solid var(--border);

}



.schedule-table tr:nth-child(even) {

  background-color: rgba(255, 255, 255, 0.02);

}



.schedule-table tr:hover {

  background-color: rgba(255, 255, 255, 0.05);

}



.schedule-table td[colspan="3"] {

  background-color: rgba(124, 92, 255, 0.15);

  font-weight: bold;

  color: var(--text);

}





.hero {

  margin-top: 12px;

  background: linear-gradient(180deg, rgba(124,92,255,0.12), rgba(25,197,184,0.08));

  border: 1px solid var(--border);

  border-radius: var(--radius);

  padding: clamp(24px, 3vw, 36px);

  box-shadow: var(--shadow);

}

.hero h1 { margin: 0 0 8px; font-size: clamp(26px, 4vw, 40px); letter-spacing: 0.2px; }

.hero p { margin: 0; color: var(--muted); font-size: clamp(14px, 1.8vw, 16px); }



.content-grid {

  margin-top: 22px;

  display: grid; gap: 16px;

  grid-template-columns: repeat(12, 1fr);

}

.card {

  grid-column: span 12;

  background: var(--panel);

  border: 1px solid var(--border);

  border-radius: var(--radius);

  padding: 18px;

  min-height: 120px;

  box-shadow: var(--shadow);

}

.card h3 { margin: 0 0 6px; font-size: 18px; }

.card p { margin: 0; color: var(--muted); }



@media (min-width: 720px) {

  .card { grid-column: span 6; }

}

@media (min-width: 1024px) {

  .card { grid-column: span 4; }

}



/* ====== Footer ====== */

footer {

  border-top: 1px solid var(--border);

  color: var(--muted);

  padding: 26px 0 36px;

  background: rgba(10,11,16,.4);

}

.footer-inner { display: flex; gap: 12px; align-items: center; justify-content: space-between; flex-wrap: wrap; }

.tiny { font-size: 12px; }



/* ====== Responsive rules ====== */

@media (max-width: 720px) {

  /* Hide desktop links and show hamburger */

  .nav-links { display: none; }

  .hamburger { display: inline-block; }



  /* Move brand to center when links hidden */

  .nav { grid-template-columns: 1fr auto 1fr; }

  .brand { justify-self: center; }

  .nav-right { justify-self: end; }

}





.copy-box {

  background: var(--panel);

  padding: 35px 35px 10px 35px;

  margin: 10px;

  border: 1px solid var(--border);

  border-radius: var(--radius);

  position: relative;

  display: inline-block;

  min-width: 350px;

}

.copy-box pre {

  margin: 0;

  overflow-x: auto;

}

.copy-box button {

  position: absolute;

  top: 8px;

  right: 8px;

  background: var(--brand);

  color: white;

  border: none;

  padding: 4px 8px;

  border-radius: var(--radius);

  cursor: pointer;

}

.copy-box button:hover {

  background: var(--brand-2);

}