/* Hermes Academy — editorial + glass UI
   Keeps Hermes "nous" identity but balances the palette and gives it glassmorphism:
   translucent frosted surfaces, backdrop blur, ambient color blobs behind.
   Editorial typography retained: Fraunces serif display, light sans UI, Courier Prime mono. */

:root {
  /* Hermes "nous" seeds — balanced */
  --primary: #0053FD;
  --psyche-blue: #1540B1;
  --psyche-warm: #FFE6CB;
  --ink: #1B1B22;
  --muted: #5C5C6E;
  --destructive: #C72E4D;

  /* glass surfaces (light) */
  --glass: rgba(255, 255, 255, 0.55);
  --glass-strong: rgba(255, 255, 255, 0.72);
  --glass-border: rgba(255, 255, 255, 0.65);
  --glass-border-strong: rgba(0, 83, 253, 0.35);
  --tint: rgba(0, 83, 253, 0.05);
  --tint-strong: rgba(0, 83, 253, 0.10);

  /* editorial typography */
  --serif: "Fraunces", "Cerial", Georgia, "Times New Roman", serif;
  --sans: "SF Pro Text", "SF Pro Display", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  --mono: "Courier Prime", Menlo, Monaco, "SF Mono", monospace;

  --shadow: 0 4px 24px rgba(23,23,26,0.06), 0 1px 3px rgba(23,23,26,0.04);
  --shadow-hover: 0 24px 60px rgba(0,83,253,0.16), 0 6px 20px rgba(23,23,26,0.08);
}
[data-theme="dark"] {
  --primary: #FFE6CB;
  --psyche-blue: #3A63BD;
  --psyche-warm: #FFE6CB;
  --ink: #FFE6CB;
  --muted: #B8C8F0;

  --glass: rgba(20, 48, 130, 0.40);
  --glass-strong: rgba(24, 56, 150, 0.55);
  --glass-border: rgba(255, 255, 255, 0.14);
  --glass-border-strong: rgba(255, 230, 203, 0.45);
  --tint: rgba(255, 230, 203, 0.05);
  --tint-strong: rgba(255, 230, 203, 0.12);

  --shadow: 0 4px 24px rgba(0,0,0,0.25), 0 1px 3px rgba(0,0,0,0.3);
  --shadow-hover: 0 24px 60px rgba(0,0,0,0.45), 0 6px 20px rgba(0,0,0,0.3);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: var(--sans);
  font-weight: 300;
  color: var(--ink);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  transition: color .3s;
  min-height: 100vh;
  position: relative;
  background: var(--bg-base);
}
/* Ambient color field the frosted glass can blur */
body::before {
  content: ""; position: fixed; inset: 0; z-index: -2;
  background:
    radial-gradient(900px 600px at 12% -5%, rgba(0,83,253,0.16), transparent 60%),
    radial-gradient(800px 620px at 88% 12%, rgba(21,64,177,0.14), transparent 62%),
    radial-gradient(700px 700px at 55% 100%, rgba(255,230,203,0.35), transparent 65%),
    linear-gradient(160deg, #F3F6FF 0%, #FAFAF6 50%, #F4F1EC 100%);
  transition: background .3s;
}
body::after {
  content: ""; position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background-image: radial-gradient(rgba(0,83,253,0.05) 1px, transparent 1px);
  background-size: 22px 22px;
  mask-image: radial-gradient(ellipse 90% 60% at 50% 0%, #000 0%, transparent 75%);
  opacity: 0.5;
}
[data-theme="dark"] body::before {
  background:
    radial-gradient(900px 600px at 12% -5%, rgba(0,83,253,0.35), transparent 60%),
    radial-gradient(800px 620px at 88% 12%, rgba(58,99,189,0.28), transparent 62%),
    radial-gradient(700px 700px at 55% 100%, rgba(255,230,203,0.10), transparent 65%),
    linear-gradient(160deg, #0A2566 0%, #0D2F86 45%, #10295E 100%);
}
[data-theme="dark"] body::after {
  background-image: radial-gradient(rgba(255,230,203,0.06) 1px, transparent 1px);
}

.mono { font-family: var(--mono); font-weight: 400; }
.serif { font-family: var(--serif); }

/* ---- Floating glass header ---- */
header {
  position: sticky; top: 14px; z-index: 20;
  padding: 0 14px;
}
.header-inner {
  max-width: 1040px; margin: 0 auto; padding: 10px 18px;
  display: flex; align-items: center; gap: 12px;
  background: var(--glass);
  backdrop-filter: blur(20px) saturate(160%);
  -webkit-backdrop-filter: blur(20px) saturate(160%);
  border: 1px solid var(--glass-border);
  border-radius: 999px;
  box-shadow: var(--shadow);
}
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; color: var(--ink); }
.brand-mark {
  width: 30px; height: 30px; border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--psyche-blue));
  display: grid; place-items: center; color: #fff; font-weight: 800; font-size: 14px;
  box-shadow: 0 2px 10px rgba(0,83,253,0.35);
}
.brand-name { font-family: var(--serif); font-weight: 500; font-size: 20px; letter-spacing: -.02em; white-space: nowrap; }
.brand-name .mono { font-family: var(--mono); font-size: 13px; font-weight: 700; color: var(--primary); }

nav.main { display: flex; gap: 4px; margin-left: 10px; flex-wrap: nowrap; }
nav.main a {
  color: var(--muted); text-decoration: none;
  font-size: 13px; font-weight: 400; letter-spacing: .01em;
  padding: 8px 16px; border-radius: 999px;
  border: 1px solid transparent; transition: all .18s; white-space: nowrap;
}
nav.main a:hover { color: var(--ink); border-color: var(--glass-border-strong); background: var(--tint); }
nav.main a.active { color: var(--ink); border-color: var(--glass-border-strong); background: var(--tint-strong); }

.header-right { margin-left: auto; display: flex; align-items: center; gap: 8px; }

.search-btn {
  display: flex; align-items: center; gap: 8px;
  border: 1px solid var(--glass-border); background: var(--glass); color: var(--muted);
  padding: 8px 14px; border-radius: 999px; font-size: 13px; font-weight: 300; cursor: pointer;
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
}
.search-btn kbd {
  font-family: var(--mono); font-size: 11px;
  border: 1px solid var(--glass-border); border-radius: 5px; padding: 1px 5px; color: var(--muted);
}
.icon-btn {
  border: 1px solid var(--glass-border); background: var(--glass); color: var(--ink);
  width: 36px; height: 36px; border-radius: 50%; cursor: pointer; font-size: 15px;
  display: grid; place-items: center; backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  transition: background .18s;
}
.icon-btn:hover { background: var(--tint-strong); }
.sign-in {
  border: 1px solid var(--glass-border-strong); background: var(--glass-strong); color: var(--ink);
  padding: 8px 16px; border-radius: 999px; font-size: 13px; font-weight: 500; cursor: pointer;
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); transition: background .18s;
}
.sign-in:hover { background: var(--tint-strong); }

/* ---- Airy page ---- */
.page { max-width: 1040px; margin: 0 auto; padding: 56px 28px 120px; }

h1.title {
  font-family: var(--serif);
  font-size: 52px; font-weight: 400; letter-spacing: -.03em; line-height: 1.05;
}
p.lede { color: var(--muted); margin-top: 18px; font-size: 18px; font-weight: 300; max-width: 520px; line-height: 1.6; }

/* ---- Glass filter pills ---- */
.filters { display: flex; align-items: center; gap: 16px; margin: 40px 0 10px; flex-wrap: wrap; }
.tabs { display: flex; gap: 6px; flex-wrap: wrap; flex: 1; }
.tab {
  background: var(--glass); border: 1px solid var(--glass-border); cursor: pointer;
  padding: 8px 18px; font-size: 13.5px; font-weight: 300; color: var(--muted);
  border-radius: 999px; transition: all .18s; backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
}
.tab:hover { color: var(--ink); border-color: var(--glass-border-strong); background: var(--glass-strong); }
.tab.active {
  color: #fff; background: linear-gradient(135deg, var(--primary), var(--psyche-blue));
  border-color: transparent; box-shadow: 0 4px 16px rgba(0,83,253,0.3); font-weight: 500;
}
[data-theme="dark"] .tab.active {
  color: #0D2F86; background: linear-gradient(135deg, #FFE6CB, #F4C99A); box-shadow: 0 4px 18px rgba(255,230,203,0.25);
}
.count { font-size: 13px; color: var(--muted); white-space: nowrap; font-family: var(--mono); }
.count b { color: var(--ink); font-weight: 400; }

.surface {
  border: 1px solid var(--glass-border); background: var(--glass); color: var(--ink);
  padding: 8px 30px 8px 16px; border-radius: 999px; font-size: 13px; font-weight: 300;
  display: flex; align-items: center; gap: 10px; cursor: pointer; backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  appearance: none; -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath d='M1 1l4 4 4-4' fill='none' stroke='%23666678' stroke-width='1.5'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 14px center;
  font-family: inherit;
}
.surface .chev { opacity: .5; font-size: 11px; }

/* ---- Glass editorial cards ---- */
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(430px, 1fr)); gap: 20px; margin-top: 32px; }
.card {
  background: var(--glass); border: 1px solid var(--glass-border); border-radius: 22px;
  padding: 28px 28px 24px; cursor: pointer; transition: all .22s; text-decoration: none; color: var(--ink);
  display: flex; flex-direction: column; gap: 15px; box-shadow: var(--shadow);
  backdrop-filter: blur(18px) saturate(150%); -webkit-backdrop-filter: blur(18px) saturate(150%);
  position: relative; overflow: hidden;
}
.card::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.7), transparent);
}
[data-theme="dark"] .card::before {
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.25), transparent);
}
.card:hover {
  border-color: var(--glass-border-strong);
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  background: var(--glass-strong);
}
.card-top { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.badge {
  font-family: var(--sans);
  font-size: 11px; font-weight: 500; letter-spacing: .06em; text-transform: uppercase;
  padding: 4px 12px; border-radius: 999px;
  border: 1px solid var(--glass-border);
  background: var(--tint); color: var(--psyche-blue);
}
[data-theme="dark"] .badge { background: var(--tint); color: var(--psyche-warm); }
.badge.surface { background: var(--glass); color: var(--muted); }
[data-theme="dark"] .badge.surface { color: var(--muted); }
.card h3 {
  font-family: var(--serif);
  font-size: 23px; font-weight: 450; letter-spacing: -.015em; line-height: 1.2;
}
.card p.desc { color: var(--muted); font-size: 14.5px; font-weight: 300; line-height: 1.6; flex: 1; }
.card-meta { display: flex; align-items: center; gap: 8px; font-size: 12.5px; color: var(--muted); font-family: var(--mono); }
.card-meta .dot { opacity: .5; }

/* ---- Glass course hero ---- */
.course-hero {
  border-radius: 32px; padding: 56px 52px 48px;
  background: linear-gradient(160deg, var(--tint-strong), var(--glass));
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(24px) saturate(160%); -webkit-backdrop-filter: blur(24px) saturate(160%);
  box-shadow: var(--shadow);
  position: relative; overflow: hidden;
}
.course-hero::before {
  content: ""; position: absolute; top: -40%; right: -10%; width: 420px; height: 420px; border-radius: 50%;
  background: radial-gradient(circle, rgba(255,230,203,0.5), transparent 65%);
  pointer-events: none;
}
[data-theme="dark"] .course-hero::before {
  background: radial-gradient(circle, rgba(255,230,203,0.14), transparent 65%);
}
.course-badges { display: flex; gap: 8px; margin-bottom: 24px; }
.course-hero h1 {
  font-family: var(--serif);
  font-size: 52px; font-weight: 400; letter-spacing: -.03em; line-height: 1.05; max-width: 720px;
}
.course-hero .lede { color: var(--muted); font-size: 17px; margin-top: 18px; max-width: 560px; line-height: 1.6; }
.course-stats { display: flex; gap: 44px; margin-top: 30px; }
.stat { display: flex; flex-direction: column; }
.stat .num { font-family: var(--serif); font-size: 28px; font-weight: 450; line-height: 1; }
.stat .lbl { font-size: 12px; color: var(--muted); margin-top: 6px; font-weight: 300; letter-spacing: .04em; }
.course-cta { margin-top: 32px; display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.btn {
  border-radius: 999px; padding: 12px 24px; font-size: 14px; font-weight: 500; cursor: pointer;
  border: 1px solid var(--glass-border-strong); background: var(--glass-strong); color: var(--ink);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); transition: all .18s;
  box-shadow: 0 1px 2px rgba(0,0,0,0.04);
}
.btn:hover { background: var(--tint-strong); }
.btn.primary {
  background: linear-gradient(135deg, var(--primary), var(--psyche-blue)); color: #fff; border-color: transparent;
  box-shadow: 0 6px 20px rgba(0,83,253,0.3);
}
[data-theme="dark"] .btn.primary {
  background: linear-gradient(135deg, #FFE6CB, #F4C99A); color: #0D2F86; box-shadow: 0 6px 20px rgba(255,230,203,0.2);
}
.btn.primary:hover { filter: brightness(1.06); }
.course-cta .free { font-size: 13px; color: var(--muted); font-weight: 300; }

.inside-course { margin-top: 64px; }
.inside-course h2 { font-family: var(--serif); font-size: 30px; font-weight: 450; letter-spacing: -.02em; margin-bottom: 6px; }
.inside-course .sub { color: var(--muted); font-size: 14px; font-weight: 300; margin-bottom: 30px; }

.module {
  border: 1px solid var(--glass-border); border-radius: 20px; margin-bottom: 14px;
  overflow: hidden; background: var(--glass); backdrop-filter: blur(16px) saturate(140%); -webkit-backdrop-filter: blur(16px) saturate(140%);
  box-shadow: var(--shadow);
}
.module-head { display: flex; align-items: center; gap: 18px; padding: 20px 24px; cursor: pointer; }
.module-head .num {
  font-family: var(--mono); font-size: 12px; letter-spacing: .1em;
  color: var(--muted); flex-shrink: 0; min-width: 26px;
}
.module-head .mt { flex: 1; }
.module-head .mt h4 { font-family: var(--serif); font-size: 20px; font-weight: 500; letter-spacing: -.01em; }
.module-head .mt .mod-meta { font-size: 12.5px; color: var(--muted); font-family: var(--mono); margin-top: 4px; }
.module-head .chev { color: var(--muted); transition: transform .2s; font-size: 12px; }
.module.open .module-head .chev { transform: rotate(90deg); }
.lessons { display: none; border-top: 1px solid var(--glass-border); }
.module.open .lessons { display: block; }
.lesson { display: flex; align-items: center; gap: 16px; padding: 15px 24px; border-bottom: 1px solid var(--glass-border); }
.lesson:last-child { border-bottom: none; }
.lesson .check {
  width: 20px; height: 20px; border-radius: 50%; border: 1.5px solid var(--glass-border-strong);
  display: grid; place-items: center; font-size: 11px; color: transparent; flex-shrink: 0;
  transition: all .18s;
}
.lesson.done .check { background: linear-gradient(135deg, var(--primary), var(--psyche-blue)); border-color: transparent; color: #fff; }
[data-theme="dark"] .lesson.done .check { color: #0D2F86; }
.lesson .lt { flex: 1; font-size: 14.5px; font-weight: 300; }
.lesson .dur { font-size: 12.5px; color: var(--muted); font-family: var(--mono); }
.quiz-callout {
  border: 1px dashed var(--glass-border-strong); border-radius: 14px; padding: 14px 20px; margin-top: 12px;
  display: flex; align-items: center; gap: 10px; font-size: 13.5px; color: var(--muted); font-weight: 300;
  background: var(--tint);
}
.quiz-callout b { color: var(--ink); font-weight: 500; }

/* ---- Glass footer ---- */
footer { padding: 0 14px 60px; }
.foot-inner {
  max-width: 1040px; margin: 0 auto; padding: 20px 24px;
  display: flex; gap: 26px; align-items: center; flex-wrap: wrap;
  background: var(--glass); border: 1px solid var(--glass-border); border-radius: 999px;
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); box-shadow: var(--shadow);
}
footer a { color: var(--muted); text-decoration: none; font-size: 13px; font-weight: 300; }
footer a:hover { color: var(--ink); }
.foot-brand { font-family: var(--serif); font-weight: 500; color: var(--ink); font-size: 17px; }
.foot-right { margin-left: auto; font-size: 12.5px; color: var(--muted); font-family: var(--mono); }

/* ---- Responsive ---- */
@media (max-width: 760px) {
  header { top: 8px; }
  .header-inner { border-radius: 26px; flex-wrap: wrap; padding: 10px 14px; }
  h1.title { font-size: 38px; }
  .course-hero { padding: 36px 26px; border-radius: 26px; }
  .course-hero h1 { font-size: 34px; }
  .grid { grid-template-columns: 1fr; }
  nav.main { order: 3; flex-basis: 100%; justify-content: center; flex-wrap: wrap; }
  .foot-inner { border-radius: 26px; }
}