/* ============================================================
   MyCourses — hub portal (muted, iPad-ready)
   Shares the dim/sepia palette & theme key with the reader.
   ============================================================ */
:root {
  --bg-0: #1a1c21; --bg-1: #202329; --bg-2: #24272e; --bg-3: #2b2f37;
  --stroke: #363b45; --stroke-soft: #2b2f38;
  --tx-0: #e8e4db; --tx-1: #c3c1b9; --tx-2: #97958c; --tx-3: #6d6b64;
  --acc: #7ea2c9; --acc-2: #9d8fc6; --cyan: #6fb1b7; --green: #8fb58a; --amber: #cfa869; --pink: #c191ad;
  --grad-a: linear-gradient(135deg, #7ea2c9 0%, #9d8fc6 100%);
  --shadow-sm: 0 6px 18px rgba(0,0,0,0.28);
  --radius: 18px; --radius-sm: 11px;
  --font: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, Charter, Georgia, Cambria, "Times New Roman", serif;
}
:root[data-theme="sepia"] {
  --bg-0: #ece3d4; --bg-1: #f3ecde; --bg-2: #e8dfcf; --bg-3: #ded3c0;
  --stroke: #cdbfa6; --stroke-soft: #ddd1bb;
  --tx-0: #3a332b; --tx-1: #4c443a; --tx-2: #6c6353; --tx-3: #8b8272;
  --acc: #3f6ea3; --acc-2: #6b579b; --cyan: #2f7d84; --green: #4f7d49; --amber: #98701f; --pink: #8f5878;
  --grad-a: linear-gradient(135deg, #3f6ea3 0%, #6b579b 100%);
  --shadow-sm: 0 6px 18px rgba(120,100,70,0.14);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--serif); background: var(--bg-0); color: var(--tx-1);
  line-height: 1.75; -webkit-font-smoothing: antialiased; min-height: 100vh;
  transition: background .3s, color .3s;
}
.wrap { max-width: 1000px; margin: 0 auto; padding: 40px clamp(20px, 5vw, 48px) 100px; }

.topline { display: flex; align-items: center; justify-content: space-between; margin-bottom: 46px; }
.topline .site { font-family: var(--font); display: flex; align-items: center; gap: 12px; }
.topline .logo { width: 40px; height: 40px; border-radius: 12px; background: var(--grad-a); display: grid; place-items: center; }
.topline .logo svg { width: 22px; height: 22px; }
.topline .name { font-weight: 800; font-size: 16px; color: var(--tx-0); letter-spacing: .2px; }
.topline .tag { font-size: 11px; color: var(--tx-3); text-transform: uppercase; letter-spacing: 1.6px; }
.theme-toggle { font-family: var(--font); width: 40px; height: 40px; border-radius: 11px; border: 1px solid var(--stroke);
  background: var(--bg-2); color: var(--tx-1); cursor: pointer; font-size: 16px; }
.theme-toggle:hover { background: var(--bg-3); color: var(--tx-0); }

.hero { margin-bottom: 44px; }
.hero h1 { font-family: var(--font); font-size: clamp(34px, 6vw, 56px); line-height: 1.08; color: var(--tx-0);
  letter-spacing: -0.02em; font-weight: 800; max-width: 16ch; }
.hero p { font-size: 20px; color: var(--tx-2); margin-top: 18px; max-width: 60ch; }

.section-label { font-family: var(--font); font-size: 11.5px; letter-spacing: 1.6px; text-transform: uppercase;
  color: var(--tx-3); font-weight: 700; margin: 8px 0 18px; }

.courses { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
@media (max-width: 760px){ .courses { grid-template-columns: 1fr; } }

.course-card { display: flex; flex-direction: column; text-decoration: none; background: var(--bg-1);
  border: 1px solid var(--stroke-soft); border-radius: var(--radius); padding: 26px 26px 24px;
  box-shadow: var(--shadow-sm); transition: transform .2s ease, border-color .2s ease; min-height: 230px; }
.course-card:hover { transform: translateY(-4px); border-color: var(--acc); }
.course-card .kicker { font-family: var(--font); font-size: 11.5px; letter-spacing: 1.3px; text-transform: uppercase;
  color: var(--cyan); font-weight: 700; }
.course-card h2 { font-family: var(--font); font-size: 25px; color: var(--tx-0); margin: 10px 0 10px; line-height: 1.2; letter-spacing: -0.01em; }
.course-card p { font-size: 15.5px; color: var(--tx-2); margin: 0 0 18px; }
.course-card .meta { margin-top: auto; display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.chip { font-family: var(--font); font-size: 11.5px; font-weight: 650; padding: 4px 11px; border-radius: 99px;
  border: 1px solid var(--stroke); color: var(--tx-1); background: var(--bg-2); }
.chip.blue { color: var(--acc); border-color: color-mix(in srgb, var(--acc) 40%, transparent); }
.chip.purple { color: var(--acc-2); border-color: color-mix(in srgb, var(--acc-2) 40%, transparent); }
.chip.green { color: var(--green); border-color: color-mix(in srgb, var(--green) 40%, transparent); }
.course-card .go { font-family: var(--font); margin-top: 16px; font-size: 14px; font-weight: 700; color: var(--acc); }

.soon { display: flex; flex-direction: column; justify-content: center; align-items: center; text-align: center;
  background: transparent; border: 1.5px dashed var(--stroke); border-radius: var(--radius); padding: 26px;
  color: var(--tx-3); min-height: 230px; }
.soon .plus { font-family: var(--font); font-size: 30px; color: var(--tx-3); margin-bottom: 8px; }
.soon .st { font-family: var(--font); font-size: 15px; color: var(--tx-2); font-weight: 650; }
.soon .sd { font-size: 13.5px; margin-top: 4px; }

.footer { margin-top: 60px; padding-top: 24px; border-top: 1px solid var(--stroke-soft);
  font-family: var(--font); font-size: 12.5px; color: var(--tx-3); }

::-webkit-scrollbar { width: 11px; }
::-webkit-scrollbar-thumb { background: var(--bg-3); border-radius: 99px; border: 3px solid var(--bg-0); }