/* =========================================================
   WithTeachers.In — Premium Regional theme
   Odisha-inspired palette, Odia-first bilingual.
   Premium layer: glass surfaces, layered shadows, gradient
   accents, refined typography and micro-interactions.
   ========================================================= */

:root{
  /* Odisha palette — refined */
  --terracotta: #c04a2b;        /* Konark red */
  --terracotta-deep: #8a2e17;
  --terracotta-light: #e8724f;
  --indigo: #1d2b5e;            /* night sky over Puri */
  --indigo-deep: #131f47;
  --indigo-soft: #2a3d7a;
  --indigo-light: #3a5199;
  --cream: #f7efd9;             /* rice-paper */
  --cream-deep: #ecdca3;
  --cream-light: #fbf7ec;
  --ochre: #d98c2b;             /* turmeric */
  --ochre-light: #f0a84a;
  --ink: #191923;
  --muted: #565663;
  --line: rgba(29,43,94,0.10);
  --line-strong: rgba(29,43,94,0.16);

  --radius-xl: 28px;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 10px;

  /* Premium layered shadows */
  --shadow-xs: 0 1px 2px rgba(19,31,71,0.05), 0 1px 3px rgba(19,31,71,0.05);
  --shadow-sm: 0 2px 6px rgba(19,31,71,0.05), 0 6px 16px rgba(19,31,71,0.06);
  --shadow-md: 0 4px 10px rgba(19,31,71,0.05), 0 12px 32px rgba(19,31,71,0.09);
  --shadow-lg: 0 8px 18px rgba(19,31,71,0.07), 0 24px 56px rgba(19,31,71,0.13);
  --shadow-glow: 0 10px 34px rgba(192,74,43,0.22), 0 4px 12px rgba(192,74,43,0.12);

  /* Surfaces */
  --surface: #ffffff;
  --surface-warm: linear-gradient(160deg, #fffdf7 0%, #f9f1dd 100%);
  --glass: rgba(255,255,255,0.72);
  --glass-border: rgba(255,255,255,0.45);

  /* Gradients */
  --grad-brand: linear-gradient(120deg, var(--terracotta) 0%, var(--ochre) 100%);
  --grad-indigo: linear-gradient(140deg, var(--indigo-deep) 0%, var(--indigo) 55%, var(--indigo-soft) 100%);
  --grad-text: linear-gradient(95deg, var(--terracotta-deep) 10%, var(--terracotta) 45%, var(--ochre) 90%);

  --font-display: "Poppins", system-ui, sans-serif;
  --font-body: "Inter", system-ui, sans-serif;

  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
html,body{margin:0;padding:0}
body{
  font-family: var(--font-body);
  color: var(--ink);
  background:
    radial-gradient(1200px 500px at 85% -5%, rgba(217,140,43,0.07), transparent 60%),
    radial-gradient(900px 460px at -5% 22%, rgba(192,74,43,0.05), transparent 55%),
    var(--cream-light);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img{max-width:100%;display:block}
a{color: var(--terracotta-deep); text-decoration:none; transition: color .2s var(--ease-out)}
a:hover{color: var(--terracotta)}
::selection{background: rgba(192,74,43,0.18); color: var(--indigo-deep)}
:focus-visible{outline: 3px solid rgba(192,74,43,0.55); outline-offset: 2px; border-radius: 6px}

/* Subtle premium scrollbar */
::-webkit-scrollbar{width: 11px; height: 11px}
::-webkit-scrollbar-track{background: var(--cream)}
::-webkit-scrollbar-thumb{background: linear-gradient(var(--indigo-soft), var(--indigo)); border-radius: 8px; border: 3px solid var(--cream)}

.container{
  width: min(1180px, 92%);
  margin-inline: auto;
}

/* ---------- Typography ---------- */
.odia{font-family: var(--font-display); font-weight: 700; letter-spacing: 0.005em}
.en-secondary{font-family: var(--font-body); color: var(--muted); font-size: 0.92em; letter-spacing: 0.03em}
h1,h2,h3,h4{font-family: var(--font-display); line-height: 1.14; margin: 0 0 .45em; color: var(--ink)}
h1{font-size: clamp(2.3rem, 5vw, 4rem); letter-spacing: -0.01em}
h2{font-size: clamp(1.65rem, 3.2vw, 2.5rem); letter-spacing: -0.005em}
h3{font-size: 1.28rem}
p{margin: 0 0 1em}

/* ---------- Header (glass) ---------- */
.site-header{
  background: linear-gradient(180deg, rgba(19,31,71,0.97), rgba(29,43,94,0.92));
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  color: var(--cream);
  position: sticky; top: 0; z-index: 50;
  border-bottom: 1px solid rgba(247,239,217,0.12);
  box-shadow: 0 6px 24px rgba(19,31,71,0.28);
}
.site-header::after{
  content:""; position:absolute; left:0; right:0; bottom:-3px; height:3px;
  background: var(--grad-brand);
  opacity: 0.9;
}
.site-header .container{
  display:flex; align-items:center; justify-content:space-between;
  padding: 16px 0;
  position: relative;
}
.brand{display:flex; align-items:center; gap:13px; color:inherit}
.brand-mark{
  width:46px; height:46px; border-radius:50%;
  background:
    radial-gradient(circle at 50% 50%, var(--ochre-light) 0 26%, transparent 27%),
    conic-gradient(from 0deg, var(--terracotta) 0 12.5%, var(--cream) 12.5% 25%, var(--terracotta) 25% 37.5%, var(--cream) 37.5% 50%, var(--terracotta) 50% 62.5%, var(--cream) 62.5% 75%, var(--terracotta) 75% 87.5%, var(--cream) 87.5% 100%);
  box-shadow:
    inset 0 0 0 3px rgba(247,239,217,0.95),
    0 0 0 2px rgba(217,140,43,0.85),
    0 6px 16px rgba(0,0,0,0.30);
  transition: transform .5s var(--ease-spring);
}
.brand:hover .brand-mark{transform: rotate(24deg)}
.brand-text .odia{font-size:1.28rem; display:block; color: var(--cream); text-shadow: 0 1px 2px rgba(0,0,0,0.25)}
.brand-text .en-secondary{color: rgba(247,239,217,0.7); font-size: 0.68rem; text-transform: uppercase; letter-spacing: 0.24em; font-weight: 600}

.main-nav ul{display:flex; gap: 4px; list-style:none; margin:0; padding:0}
.main-nav a{
  color: rgba(247,239,217,0.88); padding: 10px 17px; border-radius: 999px;
  font-weight: 500; font-size: 0.95rem;
  transition: background .25s var(--ease-out), color .25s var(--ease-out), box-shadow .25s var(--ease-out);
}
.main-nav a:hover{background: rgba(247,239,217,0.10); color: var(--cream)}
.main-nav a.active{
  background: var(--grad-brand); color: #fff;
  box-shadow: 0 4px 14px rgba(192,74,43,0.35), inset 0 1px 0 rgba(255,255,255,0.25);
}

.nav-toggle{display:none; background:none; border:0; color:var(--cream); font-size:1.6rem; cursor:pointer}

/* ---------- Hero ---------- */
.hero{
  position: relative;
  background:
    radial-gradient(900px 480px at 88% 8%, rgba(217,140,43,0.16), transparent 55%),
    radial-gradient(760px 480px at 8% 92%, rgba(192,74,43,0.12), transparent 55%),
    linear-gradient(180deg, var(--cream-light) 0%, var(--cream) 100%);
  padding: 92px 0 110px;
  overflow: hidden;
}
.hero::before{
  /* Konark sun-wheel motif */
  content:""; position:absolute; right:-130px; top:-130px;
  width: 520px; height:520px; border-radius:50%;
  background:
    conic-gradient(from 0deg,
      var(--terracotta) 0 4%, transparent 4% 8%,
      var(--ochre) 8% 12%, transparent 12% 16%,
      var(--terracotta) 16% 20%, transparent 20% 24%,
      var(--ochre) 24% 28%, transparent 28% 32%,
      var(--terracotta) 32% 36%, transparent 36% 40%,
      var(--ochre) 40% 44%, transparent 44% 48%,
      var(--terracotta) 48% 52%, transparent 52% 56%,
      var(--ochre) 56% 60%, transparent 60% 64%,
      var(--terracotta) 64% 68%, transparent 68% 72%,
      var(--ochre) 72% 76%, transparent 76% 80%,
      var(--terracotta) 80% 84%, transparent 84% 88%,
      var(--ochre) 88% 92%, transparent 92% 96%,
      var(--terracotta) 96% 100%);
  opacity: 0.14;
  filter: blur(0.5px);
  z-index: 0;
  animation: spin 90s linear infinite;
}
.hero .container{position:relative; z-index:1}
.hero-grid{
  display:grid; grid-template-columns: 1.2fr 1fr; gap: 64px; align-items:center;
}
.hero h1 .odia{
  display:block;
  background: var(--grad-indigo);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: var(--indigo);
}
.hero h1 .en-secondary{display:block; font-size: 0.42em; margin-top: 14px; color: var(--muted); font-weight: 400; letter-spacing: 0.01em}
.hero p.lede{
  font-size: 1.13rem; color: var(--muted); max-width: 52ch; margin: 1.4em 0 2em;
}
.hero-cta{display:flex; gap:14px; flex-wrap:wrap}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex; align-items:center; gap:8px;
  padding: 15px 30px; border-radius: 999px;
  font-weight: 600; font-size: 0.98rem; letter-spacing: 0.01em;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform .25s var(--ease-out), box-shadow .25s var(--ease-out), background .25s var(--ease-out), color .25s var(--ease-out);
  position: relative;
}
.btn-primary{
  background: var(--grad-brand); color: #fff;
  box-shadow: var(--shadow-glow), inset 0 1px 0 rgba(255,255,255,0.35);
}
.btn-primary:hover{
  transform: translateY(-3px); color: #fff;
  box-shadow: 0 16px 40px rgba(192,74,43,0.32), 0 6px 16px rgba(192,74,43,0.18), inset 0 1px 0 rgba(255,255,255,0.35);
}
.btn-primary:active{transform: translateY(-1px)}
.btn-ghost{
  background: rgba(255,255,255,0.6);
  -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
  color: var(--indigo); border-color: rgba(29,43,94,0.35);
  box-shadow: var(--shadow-xs);
}
.btn-ghost:hover{background: var(--indigo); color: var(--cream); border-color: var(--indigo); transform: translateY(-3px); box-shadow: var(--shadow-md)}

/* ---------- Hero visual ---------- */
.hero-visual{
  position: relative; aspect-ratio: 1/1;
  display:grid; place-items:center;
}
.hero-visual .wheel{
  width: 100%; height: 100%; border-radius: 50%;
  background:
    radial-gradient(circle, var(--cream) 0 20%, var(--ochre-light) 20% 24%, var(--indigo) 24% 27%, transparent 27%),
    repeating-conic-gradient(from 0deg, var(--indigo) 0 6%, var(--terracotta) 6% 12%);
  box-shadow:
    0 0 0 10px rgba(255,255,255,0.65),
    0 0 0 12px rgba(217,140,43,0.5),
    0 30px 70px -18px rgba(19,31,71,0.45);
  animation: spin 60s linear infinite;
}
@keyframes spin{to{transform: rotate(360deg)}}

.hero-visual .badge{
  position:absolute;
  background: var(--glass);
  -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px);
  padding: 15px 22px; border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--glass-border);
  border-left: 4px solid var(--terracotta);
  font-weight: 600;
}
.hero-visual .badge.b1{top: 6%; left: -8%; transform: rotate(-5deg)}
.hero-visual .badge.b2{bottom: 10%; right: -6%; transform: rotate(3deg); border-left-color: var(--ochre)}
.hero-visual .badge .odia{color: var(--indigo); display:block; font-size: 1.45rem}
.hero-visual .badge .en-secondary{font-size: 0.72rem}

/* ---------- Sections ---------- */
section{padding: 80px 0}
.section-head{
  display:flex; align-items:flex-end; justify-content:space-between; gap: 24px;
  margin-bottom: 44px; flex-wrap: wrap;
}
.section-head h2 .odia{color: var(--indigo); display:block}
.section-head h2 .en-secondary{display:block; margin-top: 8px}
.section-head .view-all{
  color: var(--terracotta-deep); font-weight: 600;
  padding: 10px 18px; border-radius: 999px;
  border: 1.5px solid rgba(192,74,43,0.35);
  transition: all .25s var(--ease-out);
}
.section-head .view-all:hover{background: var(--terracotta); border-color: var(--terracotta); color:#fff; box-shadow: var(--shadow-glow)}

/* ---------- Notice Board ---------- */
.notice-board{
  background: var(--grad-indigo);
  color: var(--cream);
  padding: 30px 0;
  position: relative;
  overflow: hidden;
}
.notice-board::before{
  content:""; position:absolute; inset:0;
  background: radial-gradient(500px 200px at 90% 0%, rgba(217,140,43,0.18), transparent 60%);
  pointer-events:none;
}
.notice-board .container{display:flex; gap: 28px; align-items:center; flex-wrap:wrap; position:relative}
.notice-label{
  background: var(--grad-brand); color: #fff;
  padding: 9px 18px; border-radius: 999px;
  font-weight: 700; font-size: 0.9rem;
  display: inline-flex; align-items:center; gap: 9px;
  white-space: nowrap;
  box-shadow: 0 4px 14px rgba(192,74,43,0.35), inset 0 1px 0 rgba(255,255,255,0.3);
}
.notice-label::before{
  content:""; width:8px; height:8px; border-radius:50%;
  background: #fff; animation: pulse 1.6s ease-in-out infinite;
}
@keyframes pulse{50%{opacity:0.3}}
.notice-list{display:flex; gap: 24px; flex: 1; overflow-x: auto; scrollbar-width: thin}
.notice-item{
  padding: 12px 20px; border-left: 2px solid rgba(247,239,217,0.28);
  min-width: 280px; border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  transition: background .25s var(--ease-out);
}
.notice-item:hover{background: rgba(247,239,217,0.06)}
.notice-item .date{font-size: 0.73rem; color: var(--ochre-light); letter-spacing: 0.14em; text-transform: uppercase; font-weight: 700}
.notice-item .title{font-weight: 500; margin-top: 5px}

/* ---------- Class Grid ---------- */
.class-grid{
  display:grid; grid-template-columns: repeat(5, 1fr); gap: 20px;
}
.class-card{
  background: var(--surface-warm);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 26px 20px;
  position: relative;
  transition: transform .3s var(--ease-out), box-shadow .3s var(--ease-out), border-color .3s var(--ease-out);
  overflow: hidden;
  box-shadow: var(--shadow-xs);
}
.class-card::before{
  content:""; position:absolute; top:0; left:0; right:0; height: 5px;
  background: var(--grad-brand);
  transform: scaleX(0); transform-origin: left;
  transition: transform .35s var(--ease-out);
}
.class-card::after{
  content:""; position:absolute; right:-30px; bottom:-30px;
  width: 110px; height: 110px; border-radius: 50%;
  background: radial-gradient(circle, rgba(217,140,43,0.14), transparent 70%);
  transition: transform .4s var(--ease-out);
  transform: scale(0.6);
}
.class-card:hover{
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(192,74,43,0.45);
}
.class-card:hover::before{transform: scaleX(1)}
.class-card:hover::after{transform: scale(1.4)}
.class-card:hover .class-num{
  background: var(--grad-text);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.class-num{
  font-family: var(--font-display);
  font-size: 3.1rem; font-weight: 800; line-height: 1;
  color: var(--indigo);
  transition: all .3s var(--ease-out);
}
.class-label-odia{font-family: var(--font-display); color: var(--terracotta-deep); font-size: 1rem; margin-top: 6px; font-weight: 600}
.class-label-en{font-size: 0.78rem; color: var(--muted); margin-top: 2px; letter-spacing: 0.04em}

/* ---------- Feature Tiles ---------- */
.feature-grid{
  display:grid; grid-template-columns: repeat(3, 1fr); gap: 26px;
}
.feature{
  background: var(--surface);
  border-radius: var(--radius-xl);
  padding: 36px 30px;
  border: 1px solid var(--line);
  position: relative;
  box-shadow: var(--shadow-xs);
  transition: transform .3s var(--ease-out), box-shadow .3s var(--ease-out), border-color .3s var(--ease-out);
  overflow: hidden;
}
.feature::before{
  content:""; position:absolute; inset:0 0 auto 0; height: 4px;
  background: var(--grad-brand);
  opacity: 0; transition: opacity .3s var(--ease-out);
}
.feature:hover{
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(217,140,43,0.35);
}
.feature:hover::before{opacity: 1}
.feature .icon{
  width: 60px; height: 60px; border-radius: 18px;
  background: var(--grad-brand);
  display:grid; place-items:center;
  font-size: 1.7rem;
  margin-bottom: 20px;
  box-shadow: 0 8px 20px rgba(192,74,43,0.28), inset 0 1px 0 rgba(255,255,255,0.35);
  transition: transform .35s var(--ease-spring);
}
.feature:hover .icon{transform: scale(1.08) rotate(-4deg)}
.feature h3{color: var(--indigo); margin-bottom: 8px}
.feature h3 .en-secondary{display:block; font-size: 0.75em; font-weight: 400; margin-top: 3px}
.feature p{color: var(--muted); margin: 0 0 20px}
.feature a.more{
  color: var(--terracotta-deep); font-weight: 600;
  display: inline-flex; align-items: center; gap: 6px;
}
.feature a.more:hover{gap: 10px}

/* ---------- FAQ ---------- */
.faq{
  background: linear-gradient(180deg, #fff 0%, var(--cream-light) 100%);
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
}
.faq-list{display:grid; gap: 14px}
.faq-item{
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: #fff;
  overflow: hidden;
  box-shadow: var(--shadow-xs);
  transition: box-shadow .3s var(--ease-out), border-color .3s var(--ease-out);
}
.faq-item:hover{border-color: rgba(192,74,43,0.3)}
.faq-item[open]{box-shadow: var(--shadow-sm); border-color: rgba(192,74,43,0.4)}
.faq-item summary{
  padding: 20px 24px; cursor: pointer;
  display:flex; justify-content:space-between; align-items:center; gap: 16px;
  font-weight: 600; color: var(--indigo);
  list-style: none;
  transition: background .25s var(--ease-out);
}
.faq-item summary:hover{background: rgba(247,239,217,0.5)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+"; font-size: 1.5rem; color: var(--terracotta); font-weight: 400;
  width: 34px; height: 34px; border-radius: 50%; flex-shrink: 0;
  display: grid; place-items: center;
  background: rgba(192,74,43,0.08);
  transition: transform .3s var(--ease-spring), background .3s, color .3s;
}
.faq-item[open] summary::after{transform: rotate(45deg); background: var(--terracotta); color: #fff}
.faq-item .answer{padding: 0 24px 22px; color: var(--muted)}

/* ---------- Footer ---------- */
.site-footer{
  background: linear-gradient(180deg, #171722 0%, var(--ink) 100%);
  color: rgba(247,239,217,0.85);
  padding: 68px 0 26px;
  position: relative;
}
.site-footer::before{
  content:""; position:absolute; top:0; left:0; right:0; height: 3px;
  background: var(--grad-brand); opacity: 0.85;
}
.footer-grid{
  display:grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 44px;
  margin-bottom: 44px;
}
.site-footer h4{color: var(--cream); margin-bottom: 18px; font-size: 1rem; letter-spacing: 0.02em}
.site-footer ul{list-style:none; padding:0; margin:0}
.site-footer li{margin-bottom: 9px}
.site-footer a{color: rgba(247,239,217,0.72); transition: color .2s, padding-left .25s var(--ease-out)}
.site-footer a:hover{color: var(--ochre-light); padding-left: 4px}
.footer-brand .odia{color: var(--cream); font-size: 1.45rem; display:block}
.footer-brand p{margin-top: 14px; max-width: 36ch; font-size: 0.93rem}
.socials{display:flex; gap: 12px; margin-top: 20px}
.socials a{
  width: 40px; height: 40px; border-radius: 50%;
  background: rgba(247,239,217,0.08);
  border: 1px solid rgba(247,239,217,0.14);
  display:grid; place-items:center;
  font-size: 1rem; padding-left: 0 !important;
  transition: background .25s var(--ease-out), transform .25s var(--ease-out), border-color .25s;
}
.socials a:hover{background: var(--grad-brand); color: #fff; transform: translateY(-3px); border-color: transparent}
.footer-bottom{
  border-top: 1px solid rgba(247,239,217,0.12);
  padding-top: 22px;
  display:flex; justify-content:space-between; flex-wrap:wrap; gap: 12px;
  font-size: 0.85rem; color: rgba(247,239,217,0.5);
}

/* ---------- Inner pages ---------- */
.page-hero{
  background: var(--grad-indigo);
  color: var(--cream);
  padding: 64px 0 56px;
  position: relative;
  overflow: hidden;
}
.page-hero::before{
  content:""; position:absolute; inset:0;
  background: radial-gradient(600px 300px at 85% 10%, rgba(217,140,43,0.2), transparent 60%);
  pointer-events:none;
}
.page-hero::after{
  content:""; position:absolute; right:-90px; bottom:-90px;
  width: 300px; height:300px; border-radius:50%;
  background: conic-gradient(from 0deg, var(--terracotta) 0 10%, transparent 10% 20%, var(--ochre) 20% 30%, transparent 30% 40%, var(--terracotta) 40% 50%, transparent 50% 60%, var(--ochre) 60% 70%, transparent 70% 80%, var(--terracotta) 80% 90%, transparent 90% 100%);
  opacity: 0.22;
  animation: spin 80s linear infinite;
}
.page-hero .container{position: relative; z-index: 1}
.page-hero h1 .odia{display:block; color: var(--cream)}
.page-hero .en-secondary{color: rgba(247,239,217,0.72)}
.page-hero .crumbs{font-size: 0.85rem; margin-bottom: 16px; color: rgba(247,239,217,0.6); letter-spacing: 0.04em}
.page-hero .crumbs a{color: var(--ochre-light); font-weight: 600}
.page-hero .crumbs a:hover{color: #fff}

.content-section{padding: 64px 0}
.content-section h2{color: var(--indigo); margin-bottom: 24px}

/* Subject list on class page */
.subject-list{display:grid; grid-template-columns: repeat(3, 1fr); gap: 18px}
.subject{
  background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 22px 24px;
  display:flex; justify-content:space-between; align-items:center;
  box-shadow: var(--shadow-xs);
  transition: border-color .25s, transform .25s var(--ease-out), box-shadow .25s var(--ease-out);
}
.subject:hover{
  border-color: rgba(192,74,43,0.5);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}
.subject:hover .arrow{transform: translateX(4px)}
.subject .name .odia{color: var(--indigo); display:block; font-size: 1.12rem}
.subject .name .en-secondary{display:block; font-size: 0.8rem}
.subject .arrow{color: var(--terracotta); font-size: 1.4rem; transition: transform .25s var(--ease-out)}

/* MCQ / book lists */
.resource-list{display:grid; grid-template-columns: repeat(2, 1fr); gap: 20px}
.resource{
  background: #fff; border-radius: var(--radius-lg);
  padding: 24px 26px; border: 1px solid var(--line);
  display:flex; gap: 20px; align-items:flex-start;
  box-shadow: var(--shadow-xs);
  transition: transform .3s var(--ease-out), box-shadow .3s var(--ease-out), border-color .3s;
}
.resource:hover{
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: rgba(217,140,43,0.4);
}
.resource .thumb{
  width: 66px; height: 66px; border-radius: 18px; flex-shrink: 0;
  background: var(--grad-brand);
  display:grid; place-items:center; color: #fff; font-size: 1.7rem;
  box-shadow: 0 8px 20px rgba(192,74,43,0.28), inset 0 1px 0 rgba(255,255,255,0.3);
}
.resource h3{margin: 0 0 5px; color: var(--indigo)}
.resource .meta{font-size: 0.83rem; color: var(--muted); letter-spacing: 0.02em}

/* Contact */
.contact-grid{display:grid; grid-template-columns: 1fr 1fr; gap: 44px}
.contact-card{
  background: #fff; border-radius: var(--radius-xl);
  padding: 36px; border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
}
.contact-card h3{color: var(--indigo)}
.contact-item{margin: 20px 0; display:flex; gap: 16px; align-items:flex-start}
.contact-item .ic{
  width: 44px; height: 44px; border-radius: 12px;
  background: rgba(192,74,43,0.08); display:grid; place-items:center;
  color: var(--terracotta); font-size: 1.15rem; flex-shrink: 0;
}
.contact-item strong{display:block; color: var(--indigo); margin-bottom: 3px}
.contact-item span{color: var(--muted); font-size: 0.96rem}
.contact-item a{font-weight: 600}

/* Form fields (contact) */
.contact-card input, .contact-card textarea{
  width: 100%;
  padding: 13px 16px !important;
  border-radius: 12px !important;
  border: 1.5px solid var(--line-strong) !important;
  background: var(--cream-light);
  transition: border-color .2s, box-shadow .2s, background .2s;
}
.contact-card input:focus, .contact-card textarea:focus{
  border-color: var(--terracotta) !important;
  background: #fff;
  box-shadow: 0 0 0 4px rgba(192,74,43,0.12);
  outline: none;
}

/* ---------- Responsive ---------- */
@media (max-width: 960px){
  .hero-grid{grid-template-columns: 1fr; gap: 44px}
  .hero-visual{max-width: 380px; margin: 0 auto}
  .class-grid{grid-template-columns: repeat(3, 1fr)}
  .feature-grid{grid-template-columns: 1fr}
  .footer-grid{grid-template-columns: 1fr 1fr; gap: 34px}
  .contact-grid{grid-template-columns: 1fr}
  .subject-list{grid-template-columns: repeat(2, 1fr)}
  .resource-list{grid-template-columns: 1fr}
}
@media (max-width: 640px){
  .main-nav{
    position: absolute; top: 100%; left: 0; right: 0;
    background: rgba(19,31,71,0.98);
    -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
    border-top: 1px solid rgba(247,239,217,0.1);
    max-height: 0; overflow: hidden; transition: max-height .35s var(--ease-out);
  }
  .main-nav.open{max-height: 420px}
  .main-nav ul{flex-direction: column; padding: 12px 0}
  .main-nav a{display:block; padding: 14px 22px; border-radius: 0}
  .main-nav a.active{border-radius: 0; box-shadow: none}
  .nav-toggle{display:block}
  .class-grid{grid-template-columns: repeat(2, 1fr)}
  .subject-list{grid-template-columns: 1fr}
  .footer-grid{grid-template-columns: 1fr}
  section{padding: 60px 0}
  .hero{padding: 60px 0 80px}
}

/* Respect reduced motion */
@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}
}

</