/* Rewoven Curriculum — site styles */

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

:root {
  --green-50:#ECFDF5; --green-100:#D1FAE5; --green-200:#A7F3D0;
  --green-400:#34D399; --green-500:#10B981; --green-600:#059669;
  --green-700:#047857; --green-800:#065F46;
  --gold:#F59E0B;
  --dark:#111827; --gray-600:#4B5563; --gray-400:#9CA3AF; --gray-200:#E5E7EB;
  --white:#FFFFFF; --bg-cream:#F0FDF4;
}

body {
  font-family:'Inter',-apple-system,BlinkMacSystemFont,sans-serif;
  color:var(--dark); background:var(--white);
  line-height:1.5; -webkit-font-smoothing:antialiased;
}
a { color:inherit; text-decoration:none; }
img { display:block; max-width:100%; }

.container { max-width:1100px; margin:0 auto; padding:0 24px; }

/* Buttons */
.btn {
  display:inline-flex; align-items:center; gap:10px;
  padding:14px 28px; border-radius:50px;
  font-family:inherit; font-size:16px; font-weight:700;
  border:none; cursor:pointer; transition:all .15s ease;
}
.btn-primary {
  background:var(--green-500); color:var(--white);
  box-shadow:0 4px 14px rgba(16,185,129,.4);
}
.btn-primary:hover {
  background:var(--green-600); transform:translateY(-2px);
}
.btn-secondary {
  background:var(--white); color:var(--green-700);
  border:2px solid var(--green-200);
}
.btn-secondary:hover { background:var(--green-50); border-color:var(--green-500); }

/* Nav */
nav {
  position:sticky; top:0; z-index:100;
  background:rgba(255,255,255,.92); backdrop-filter:blur(20px);
  border-bottom:1px solid var(--gray-200);
}
.nav-inner { display:flex; align-items:center; justify-content:space-between; height:72px; }
.nav-logo { display:flex; align-items:center; gap:12px; }
.nav-logo img { width:36px; height:36px; border-radius:8px; }
.nav-logo span {
  font-family:'Playfair Display',serif;
  font-size:20px; font-weight:800; color:var(--green-800);
}
.nav-links { display:flex; gap:24px; align-items:center; list-style:none; }
.nav-links a { color:var(--gray-600); font-size:15px; font-weight:500; }
.nav-links a:hover { color:var(--green-600); }
.user-pill {
  display:inline-flex; padding:6px 14px; border-radius:50px;
  background:var(--green-50); color:var(--green-700);
  font-size:13px; font-weight:700;
}

/* Hero */
.hero {
  padding:80px 0 60px;
  background:linear-gradient(180deg,var(--bg-cream) 0%,var(--green-50) 100%);
  text-align:center;
}
.hero h1 {
  font-family:'Playfair Display',serif;
  font-size:clamp(36px,5.5vw,56px); font-weight:800;
  margin-bottom:20px; line-height:1.15;
}
.hero h1 .highlight {
  background:linear-gradient(135deg,var(--green-500),var(--green-700));
  -webkit-background-clip:text; -webkit-text-fill-color:transparent;
  background-clip:text;
}
.hero p { font-size:18px; color:var(--gray-600); max-width:640px; margin:0 auto 28px; line-height:1.65; }
.hero-stat { display:inline-flex; gap:16px; align-items:center; color:var(--green-700); font-weight:700; font-size:14px; }
.hero-stat span { padding:4px 12px; background:var(--green-100); border-radius:50px; }

/* Courses grid */
.courses { padding:80px 0; }
.courses-grid { display:grid; grid-template-columns:repeat(2,1fr); gap:24px; }
.course-card {
  display:block;
  background:var(--white); border:1px solid var(--gray-200);
  border-radius:18px; padding:28px;
  transition:transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.course-card:hover {
  transform:translateY(-3px);
  box-shadow:0 16px 40px rgba(0,0,0,.08);
  border-color:var(--green-200);
}
.course-emoji { font-size:36px; margin-bottom:12px; }
.course-title {
  font-family:'Playfair Display',serif;
  font-size:24px; font-weight:800; margin-bottom:8px;
  color:var(--dark);
}
.course-tag { color:var(--gray-600); font-size:15px; line-height:1.55; margin-bottom:18px; }
.course-meta { display:flex; gap:16px; font-size:13px; color:var(--gray-400); }
.course-meta strong { color:var(--green-700); font-weight:700; }

/* Course detail page */
.course-header {
  padding:60px 0 40px;
  background:linear-gradient(180deg,var(--bg-cream) 0%,var(--white) 100%);
}
.crumbs { font-size:14px; color:var(--gray-400); margin-bottom:18px; }
.crumbs a { color:var(--green-600); }
.course-header .course-emoji { font-size:48px; margin-bottom:16px; }
.course-header h1 {
  font-family:'Playfair Display',serif; font-size:44px; font-weight:800;
  line-height:1.15; margin-bottom:14px;
}
.course-header p { font-size:18px; color:var(--gray-600); max-width:640px; }

.lessons-list {
  padding:48px 0 80px; max-width:760px; margin:0 auto;
}
.lesson-row {
  display:flex; align-items:center; gap:20px;
  padding:22px; border:1px solid var(--gray-200); border-radius:14px;
  margin-bottom:12px; background:var(--white);
  transition:all .15s ease;
}
.lesson-row:hover { border-color:var(--green-300,#6EE7B7); box-shadow:0 8px 24px rgba(0,0,0,.05); }
.lesson-num {
  width:44px; height:44px; flex-shrink:0;
  border-radius:50%; background:var(--green-50);
  color:var(--green-700); font-weight:800;
  display:flex; align-items:center; justify-content:center;
  font-size:18px;
}
.lesson-info { flex:1; }
.lesson-title { font-size:17px; font-weight:700; color:var(--dark); margin-bottom:4px; }
.lesson-summary { color:var(--gray-600); font-size:14px; }
.lesson-duration { font-size:13px; color:var(--gray-400); flex-shrink:0; }

/* Lesson page */
.lesson-page { max-width:720px; margin:0 auto; padding:48px 24px 100px; }
.lesson-page h1 {
  font-family:'Playfair Display',serif;
  font-size:36px; font-weight:800; line-height:1.2; margin:18px 0 12px;
}
.lesson-intro {
  font-size:19px; color:var(--gray-600); line-height:1.6;
  padding-bottom:24px; border-bottom:1px solid var(--gray-200);
  margin-bottom:32px;
}
.lesson-section { margin-bottom:36px; }
.lesson-section h2 {
  font-family:'Inter',sans-serif;
  font-size:22px; font-weight:800; margin-bottom:14px;
  color:var(--dark);
}
.lesson-section p {
  font-size:17px; line-height:1.7; color:var(--dark);
  margin-bottom:14px;
}
.lesson-section p:last-child { margin-bottom:0; }

.takeaways {
  background:var(--green-50); border-left:4px solid var(--green-500);
  padding:24px 28px; border-radius:0 12px 12px 0;
  margin:32px 0;
}
.takeaways h3 { font-size:14px; text-transform:uppercase; letter-spacing:1px; color:var(--green-700); margin-bottom:12px; }
.takeaways ul { list-style:none; }
.takeaways li {
  position:relative; padding-left:22px; margin-bottom:10px;
  font-size:16px; line-height:1.55;
}
.takeaways li::before {
  content:'✓'; position:absolute; left:0; top:0;
  color:var(--green-600); font-weight:800;
}

.activity-card {
  background:var(--white); border:1px solid var(--gray-200);
  border-radius:14px; padding:24px;
  margin-bottom:14px;
}
.activity-card h4 { font-size:16px; font-weight:700; margin-bottom:8px; color:var(--dark); }
.activity-card p { color:var(--gray-600); font-size:15px; line-height:1.6; }

.end-question {
  background:var(--bg-cream); border:1px solid var(--green-200);
  border-radius:16px; padding:28px;
  margin-top:32px;
}
.end-question .label { font-size:13px; text-transform:uppercase; letter-spacing:1px; color:var(--green-700); font-weight:700; margin-bottom:10px; }
.end-question h3 { font-size:20px; font-weight:800; margin-bottom:18px; color:var(--dark); line-height:1.4; }
.q-options { display:flex; flex-direction:column; gap:10px; }
.q-option {
  display:flex; align-items:center; gap:12px; padding:14px 16px;
  background:var(--white); border:2px solid var(--gray-200);
  border-radius:12px; cursor:pointer; transition:all .15s;
  font-size:15px; text-align:left; font-family:inherit;
}
.q-option:hover { border-color:var(--green-400); }
.q-option.correct { border-color:var(--green-500); background:var(--green-50); color:var(--green-800); font-weight:700; }
.q-option.wrong { border-color:#EF4444; background:#FEF2F2; color:#991B1B; }
.q-option-letter {
  width:28px; height:28px; flex-shrink:0;
  display:flex; align-items:center; justify-content:center;
  background:var(--gray-200); color:var(--gray-600);
  border-radius:50%; font-weight:700; font-size:13px;
}
.q-option.correct .q-option-letter { background:var(--green-500); color:#fff; }
.q-option.wrong .q-option-letter { background:#EF4444; color:#fff; }
.q-explanation {
  margin-top:18px; padding:14px 18px; background:var(--white);
  border-radius:10px; color:var(--gray-600); font-size:15px;
  line-height:1.6; display:none;
}
.q-explanation.show { display:block; }

.lesson-nav {
  display:flex; justify-content:space-between; align-items:center;
  padding-top:32px; margin-top:48px;
  border-top:1px solid var(--gray-200);
  gap:12px;
}
.nav-arrow {
  flex:1; padding:18px 22px; border-radius:14px;
  background:var(--white); border:1px solid var(--gray-200);
  transition:all .15s;
}
.nav-arrow:hover { border-color:var(--green-300); transform:translateY(-2px); }
.nav-arrow.disabled { opacity:.3; pointer-events:none; }
.nav-arrow .label { font-size:12px; color:var(--gray-400); margin-bottom:4px; }
.nav-arrow .title { font-size:15px; font-weight:700; color:var(--dark); }
.nav-arrow.next { text-align:right; }

/* Footer */
footer {
  padding:48px 0; text-align:center;
  color:var(--gray-400); font-size:14px;
  border-top:1px solid var(--gray-200);
}
footer a { color:var(--green-600); font-weight:600; }

@media (max-width: 760px) {
  .courses-grid { grid-template-columns:1fr; }
  .nav-links li:not(:last-child) { display:none; }
  .lesson-page h1 { font-size:28px; }
  .course-header h1 { font-size:32px; }
}