/*
Theme Name: AahaMath
Theme URI: https://aahamath.com/
Author: AahaMath
Description: Math learning platform — chapters, exercises, secure content.
Version: 1.1.0
Text Domain: aahamath
*/

/* ================= TOKENS (from aahamath design) ================= */
:root{
  --ink:#1B1F3B; --ink-soft:#2E3358;
  --paper:#FBF9F4; --paper-dim:#F1EEE4;
  --marigold:#F5A300; --marigold-deep:#D9860A;
  --teal:#1F9A93; --teal-soft:#DCF1EE;
  --slate:#5C6178; --line:rgba(27,31,59,0.12);
  --shadow:0 20px 45px -20px rgba(27,31,59,0.35);
  --radius:18px;
  --display:"Fraunces", Georgia, serif;
  --body:"Inter", system-ui, sans-serif;
  --mono:"JetBrains Mono", ui-monospace, monospace;
}

html{scroll-behavior:smooth;}
body{font-family:var(--body);background:var(--paper);color:var(--ink);line-height:1.6;overflow-x:hidden;}
h1,h2,h3,h4,h5{font-family:var(--display);color:var(--ink);letter-spacing:-.01em;}
a{color:inherit;}
a:hover{color:var(--marigold-deep);}
.container{max-width:1180px;}
.eyebrow{font-family:var(--mono);font-size:12.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--teal);font-weight:700;display:inline-flex;align-items:center;gap:8px;}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--marigold);border-radius:2px;}
.text-primary{color:var(--marigold-deep)!important;}
.text-teal{color:var(--teal)!important;}
.bg-paper{background:var(--paper)!important;}
.bg-paper-dim{background:var(--paper-dim)!important;}
.bg-ink{background:var(--ink)!important;color:var(--paper)!important;}

/* Buttons override bootstrap primary/warning to match brand */
.btn{border-radius:100px;padding:11px 22px;font-weight:700;font-size:14.5px;border:none;transition:transform .2s,box-shadow .2s;}
.btn:hover{transform:translateY(-2px);}
.btn-primary,.btn-primary:focus{background:var(--ink);color:var(--paper);box-shadow:0 10px 24px -10px rgba(27,31,59,.55);}
.btn-primary:hover{background:#0f1230;color:var(--paper);}
.btn-warning,.btn-warning:focus{background:var(--marigold);color:#fff;box-shadow:0 10px 24px -10px rgba(217,134,10,.6);}
.btn-warning:hover{background:var(--marigold-deep);color:#fff;}
.btn-outline-primary{border:1.5px solid var(--line);color:var(--ink);background:transparent;}
.btn-outline-primary:hover{border-color:var(--ink);background:var(--ink);color:var(--paper);}
.btn-outline-secondary{border:1.5px solid var(--line);color:var(--ink);background:transparent;}
.btn-outline-secondary:hover{background:var(--paper-dim);color:var(--ink);}
.btn-success{background:var(--teal);color:#fff;}
.btn-success:hover{background:#177b76;color:#fff;}

.form-control,.form-select{border-radius:12px;border:1.5px solid var(--line);padding:11px 14px;font-size:15px;background:#fff;}
.form-control:focus,.form-select:focus{border-color:var(--marigold);box-shadow:0 0 0 3px rgba(245,163,0,.15);}
.card{border-radius:var(--radius);border:1.5px solid var(--line);background:#fff;}
.list-group-item{border-color:var(--line);}
.list-group-item.active{background:var(--ink);border-color:var(--ink);}

/* ================= HEADER ================= */
.aaha-header{position:sticky;top:0;z-index:200;background:rgba(251,249,244,.86);backdrop-filter:blur(14px);border-bottom:1px solid var(--line);}
.aaha-header .container{padding-top:14px;padding-bottom:14px;}
.aaha-logo{display:inline-flex;align-items:center;gap:10px;font-family:var(--display);font-weight:700;font-size:23px;color:var(--ink);text-decoration:none;}
.aaha-logo .mark{width:38px;height:38px;border-radius:11px;background:linear-gradient(150deg,var(--marigold),var(--marigold-deep));display:flex;align-items:center;justify-content:center;color:#fff;font-family:var(--mono);font-weight:700;font-size:17px;box-shadow:0 8px 16px -6px rgba(217,134,10,.6);}
.aaha-nav{display:flex;align-items:center;gap:32px;}
.aaha-nav a{font-size:14.5px;font-weight:600;color:var(--ink-soft);position:relative;padding:6px 0;text-decoration:none;}
.aaha-nav a::after{content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--marigold);transition:width .25s;}
.aaha-nav a:hover::after,.aaha-nav a.active::after{width:100%;}
.aaha-avatar{width:36px;height:36px;border-radius:50%;object-fit:cover;border:2px solid var(--marigold);}

/* Custom offcanvas mobile menu */
.aaha-offcanvas-overlay{position:fixed;inset:0;background:rgba(27,31,59,.5);z-index:299;opacity:0;pointer-events:none;transition:opacity .3s;}
.aaha-offcanvas-overlay.active{opacity:1;pointer-events:auto;}
.aaha-offcanvas{position:fixed;top:0;right:0;height:100%;width:300px;max-width:82vw;background:var(--ink);color:var(--paper);z-index:300;transform:translateX(100%);transition:transform .35s cubic-bezier(.65,0,.35,1);display:flex;flex-direction:column;padding:26px;}
.aaha-offcanvas.active{transform:translateX(0);}
.aaha-offcanvas nav a{padding:14px 4px;font-size:16px;font-weight:600;border-bottom:1px solid rgba(255,255,255,.08);color:var(--paper);text-decoration:none;display:flex;align-items:center;justify-content:space-between;}
.aaha-offcanvas nav a i{color:var(--marigold);font-size:12px;}
.aaha-offcanvas-close{width:38px;height:38px;border-radius:10px;background:rgba(255,255,255,.08);color:var(--paper);display:flex;align-items:center;justify-content:center;}
.aaha-hamburger{display:none;width:42px;height:42px;border-radius:12px;background:var(--paper-dim);color:var(--ink);align-items:center;justify-content:center;font-size:16px;border:none;}
@media (max-width: 991.98px){
  .aaha-nav,.aaha-actions{display:none!important;}
  .aaha-hamburger{display:inline-flex;}
}

/* ================= HERO ================= */
.aaha-hero-band{padding:70px 0 60px;background:
  radial-gradient(circle at 88% 8%, rgba(31,154,147,.14), transparent 45%),
  radial-gradient(circle at 6% 90%, rgba(245,163,0,.16), transparent 45%);}
.aaha-hero-band h1{font-size:clamp(36px,5vw,58px);font-weight:700;line-height:1.06;margin:14px 0 18px;}
.aaha-hero-band h1 .accent{color:var(--marigold-deep);font-style:italic;}
.aaha-hero-band .lead{color:var(--slate);font-size:17px;max-width:520px;}

/* search bar */
.aaha-search{background:#fff;border:1.5px solid var(--line);border-radius:16px;padding:8px;display:flex;gap:8px;flex-wrap:wrap;box-shadow:var(--shadow);align-items:center;}
.aaha-search select{flex:1;min-width:140px;border:none;background:transparent;font-family:var(--body);font-weight:600;color:var(--ink);padding:10px 8px;outline:none;}
.aaha-search button{background:var(--marigold);color:#fff;padding:12px 22px;border-radius:11px;font-weight:700;border:none;white-space:nowrap;}
.aaha-search button:hover{background:var(--marigold-deep);}
.aaha-search-divider{width:1px;background:var(--line);align-self:stretch;}

/* ================= SECTIONS / CARDS ================= */
section{scroll-margin-top:80px;}
.section-head h2{font-size:clamp(28px,3.6vw,40px);font-weight:700;line-height:1.15;margin-top:8px;}
.section-head p{color:var(--slate);margin-top:10px;}
.feat-card{background:#fff;border:1.5px solid var(--line);border-radius:var(--radius);padding:26px 20px;transition:transform .2s,box-shadow .2s;}
.feat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);}
.course-card{background:#fff;border:1.5px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:transform .2s,box-shadow .2s;}
.course-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:transparent;}
.course-img{width:100%;height:200px;object-fit:cover;}
.course-card h5{font-family:var(--display);font-weight:700;font-size:20px;margin-bottom:10px;}
.course-card h5 a{text-decoration:none;color:var(--ink);}
.test-card{border:1.5px solid var(--line);}
.aaha-cta{background:linear-gradient(120deg,var(--ink),#262b52);color:var(--paper);border-radius:var(--radius);}
.aaha-cta h2{color:var(--paper);}
.aaha-cta p{color:rgba(251,249,244,.75);}

/* Chapter list w/ exercise dropdown on single course */
.chapter-item{background:#fff;border:1.5px solid var(--line);border-radius:14px;margin-bottom:12px;overflow:hidden;}
.chapter-item summary{list-style:none;padding:16px 20px;display:flex;justify-content:space-between;align-items:center;cursor:pointer;font-weight:600;}
.chapter-item summary::-webkit-details-marker{display:none;}
.chapter-item summary .caret{transition:transform .2s;color:var(--slate);}
.chapter-item[open] summary .caret{transform:rotate(180deg);}
.chapter-item summary .num{font-family:var(--mono);color:var(--marigold-deep);font-weight:700;margin-right:10px;}
.chapter-item .ex-list{list-style:none;margin:0;padding:6px 0 12px 0;background:var(--paper-dim);border-top:1px solid var(--line);}
.chapter-item .ex-list li{padding:10px 22px;display:flex;justify-content:space-between;align-items:center;font-size:14.5px;color:var(--ink-soft);}
.chapter-item .ex-list li + li{border-top:1px dashed rgba(27,31,59,.08);}
.chapter-item .ex-list a{color:var(--ink);text-decoration:none;font-weight:600;}
.chapter-item .ex-list a:hover{color:var(--marigold-deep);}
.chapter-item .locked-ex{color:var(--slate);}
.chapter-item .locked-ex i{color:var(--slate);}
.chapter-item .preview-badge{font-family:var(--mono);font-size:10px;background:var(--teal-soft);color:var(--teal);padding:2px 8px;border-radius:100px;font-weight:700;letter-spacing:.04em;}

/* ================= FOOTER ================= */
.aaha-footer{background:var(--ink);color:rgba(251,249,244,.75);margin-top:80px;}
.aaha-footer a{color:rgba(251,249,244,.75);text-decoration:none;}
.aaha-footer a:hover{color:var(--marigold);}
.aaha-footer h4,.aaha-footer h6{color:var(--paper);font-family:var(--display);}
.aaha-footer hr{border-color:rgba(255,255,255,.08);}

/* course hero on single */
.course-hero{background-size:cover;background-position:center;background-color:var(--ink);position:relative;}
.course-hero::before{content:"";position:absolute;inset:0;background:linear-gradient(120deg,rgba(27,31,59,.85),rgba(27,31,59,.55));}
.course-hero .container{position:relative;z-index:1;}
.course-hero h1{color:#fff;font-size:clamp(30px,4.4vw,48px);}

/* Watermark for secure video */
.aaha-secure-video{position:relative;}
.aaha-watermark{position:absolute;top:12px;right:14px;color:rgba(255,255,255,.55);font-size:12px;pointer-events:none;font-family:var(--mono);}

/* small helpers */
.rounded-xl{border-radius:var(--radius)!important;}
/* ================= CHAPTERS ================= */
.class-tabs{display:flex;gap:10px;margin-bottom:40px;flex-wrap:wrap;}
.class-tab{
  padding:11px 22px;border-radius:100px;font-weight:700;font-size:14px;
  border:1.5px solid var(--line);color:var(--slate);display:flex;align-items:center;gap:8px;
  transition:all .2s ease;
}
.class-tab.active{background:var(--ink);color:var(--paper);border-color:var(--ink);}
.class-tab.locked{color:#b7bccb;}
.class-tab .badge{
  font-family:var(--mono);font-size:10px;background:var(--marigold);color:#fff;
  padding:2px 7px;border-radius:100px;letter-spacing:0.04em;
}

.chapters-grid{
  display:grid;grid-template-columns:repeat(auto-fill,minmax(270px,1fr));gap:20px;
}
.chapter-card{
  background:#fff;border:1.5px solid var(--line);border-radius:var(--radius);
  padding:26px 24px;position:relative;overflow:hidden;
  transition:transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.chapter-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:transparent;}
.chapter-card .num{
  font-family:var(--display);font-size:52px;font-weight:900;color:var(--paper-dim);
  position:absolute;top:6px;right:16px;line-height:1;z-index:0;
}
.chapter-card .top-row{display:flex;align-items:center;gap:12px;position:relative;z-index:1;margin-bottom:14px;}
.chapter-card .ico{
  width:44px;height:44px;border-radius:12px;background:var(--teal-soft);color:var(--teal);
  display:flex;align-items:center;justify-content:center;font-size:17px;flex-shrink:0;
}
.chapter-card h3{font-size:17px;font-weight:700;position:relative;z-index:1;margin-bottom:8px;line-height:1.3;}
.chapter-card p{font-size:13.5px;color:var(--slate);position:relative;z-index:1;margin-bottom:16px;}
.chapter-card .meta{
  display:flex;justify-content:space-between;align-items:center;position:relative;z-index:1;
  font-size:12.5px;color:var(--slate);font-weight:600;
}
.chapter-card .meta a{color:var(--marigold-deep);display:flex;align-items:center;gap:6px;}

.coming-soon-panel{
  margin-top:26px;border-radius:var(--radius);
  background:linear-gradient(120deg, var(--ink) 0%, #262b52 100%);
  padding:44px 36px;display:flex;align-items:center;justify-content:space-between;gap:24px;
  color:var(--paper);flex-wrap:wrap;
}
.coming-soon-panel .txt h3{color:var(--paper);font-size:24px;margin-bottom:8px;}
.coming-soon-panel .txt p{color:rgba(251,249,244,0.65);font-size:14px;max-width:420px;}
.coming-soon-panel .pills{display:flex;gap:12px;}
.coming-soon-panel .pill{
  background:rgba(255,255,255,0.08);border:1px solid rgba(255,255,255,0.15);
  padding:14px 22px;border-radius:14px;text-align:center;min-width:110px;
}
.coming-soon-panel .pill i{color:var(--marigold);font-size:18px;margin-bottom:8px;display:block;}
.coming-soon-panel .pill b{display:block;font-size:15px;}
.coming-soon-panel .pill span{font-size:11px;color:rgba(251,249,244,0.55);}
.aaha-hero-band img{
	width: 100%;
}