/* ============================================
   IELTS-Coach — Design Tokens
   Palette extracted from actual product UI
   ============================================ */
:root {
  --color-navy:        #101E2D;   /* primary dark, from product header */
  --color-navy-light:  #18293D;
  --color-cream:       #F9F9F1;   /* primary background, from product */
  --color-cream-dim:   #F0EFE3;
  --color-gold:        #C2A556;   /* accent, from product badge/border */
  --color-gold-bright: #D9C078;
  --color-rust:        #96473A;   /* used sparingly: record/active states */
  --color-ink:         #1E2A38;   /* body text on cream */
  --color-stone:       #6B7176;   /* muted text */

  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-body: 'Inter', 'Be Vietnam Pro', -apple-system, sans-serif;

  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2.5rem;
  --space-5: 4rem;
  --space-6: 6rem;

  --radius: 3px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

body {
  background: var(--color-cream);
  color: var(--color-ink);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--color-navy);
  font-weight: 500;
  line-height: 1.15;
}
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--color-gold);
  outline-offset: 3px;
}

/* ============================================
   Header
   ============================================ */
.site-header {
  background: var(--color-navy);
  border-bottom: 1px solid rgba(194, 165, 86, 0.2);
}
.header-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: var(--space-2) var(--space-4);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.parent-link {
  font-size: 0.78rem;
  color: var(--color-stone);
  letter-spacing: 0.03em;
}
.parent-link span {
  color: var(--color-gold-bright);
  transition: opacity 0.25s ease;
}
.parent-link:hover span { opacity: 0.8; }

.product-mark {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.ai-badge {
  background: var(--color-gold);
  color: var(--color-navy);
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.7rem;
  letter-spacing: 0.04em;
  padding: 0.3em 0.5em;
  border-radius: var(--radius);
}
.product-name {
  font-family: var(--font-display);
  color: #F4F1E8;
  font-size: 1.3rem;
}
.product-name em {
  font-style: normal;
  color: var(--color-gold-bright);
}

/* ============================================
   Hero
   ============================================ */
.hero {
  text-align: center;
  padding: var(--space-6) var(--space-3) var(--space-5);
  background: radial-gradient(ellipse at 50% 0%, rgba(194,165,86,0.08), transparent 60%);
}
.hero-inner { max-width: 680px; margin: 0 auto; }

.eyebrow {
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-gold);
  font-weight: 600;
}

.hero-title {
  font-size: clamp(2.4rem, 5.5vw, 3.6rem);
  margin: var(--space-2) 0 var(--space-2);
  letter-spacing: 0.01em;
}

.hero-lede {
  font-size: 1.05rem;
  color: var(--color-stone);
  max-width: 520px;
  margin: 0 auto;
}

.hero-actions {
  display: flex;
  justify-content: center;
  gap: var(--space-2);
  margin-top: var(--space-4);
  flex-wrap: wrap;
}

.btn-primary {
  display: inline-block;
  padding: 0.9em 2.2em;
  background: var(--color-navy);
  color: #F4F1E8;
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 600;
  border-radius: var(--radius);
  border: 1px solid var(--color-navy);
  transition: background 0.25s ease, transform 0.25s ease;
}
.btn-primary:hover {
  background: var(--color-navy-light);
  transform: translateY(-1px);
}

.btn-secondary {
  display: inline-block;
  padding: 0.9em 2.2em;
  background: transparent;
  color: var(--color-navy);
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 600;
  border-radius: var(--radius);
  border: 1px solid var(--color-gold);
  transition: background 0.25s ease, transform 0.25s ease;
}
.btn-secondary:hover {
  background: var(--color-gold);
  color: var(--color-navy);
  transform: translateY(-1px);
}

/* ============================================
   Product Showcase
   ============================================ */
.showcase {
  padding: 0 var(--space-3) var(--space-6);
  display: flex;
  justify-content: center;
}

.browser-frame {
  max-width: 920px;
  width: 100%;
  background: var(--color-navy);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 30px 60px -20px rgba(16, 30, 45, 0.35), 0 0 0 1px rgba(16,30,45,0.06);
}

.browser-chrome {
  display: flex;
  gap: 7px;
  padding: 12px 16px;
  background: var(--color-navy);
}
.dot { width: 10px; height: 10px; border-radius: 50%; }
.dot-red { background: #E0635A; }
.dot-yellow { background: #E5BD5C; }
.dot-green { background: #6FB489; }

.screenshot { display: block; width: 100%; }

/* ============================================
   Features
   ============================================ */
.features {
  background: var(--color-cream-dim);
  padding: var(--space-6) var(--space-3);
  border-top: 1px solid rgba(16,30,45,0.06);
  border-bottom: 1px solid rgba(16,30,45,0.06);
}

.section-head {
  text-align: center;
  max-width: 600px;
  margin: 0 auto var(--space-4);
}
.section-head h2 {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  margin-top: var(--space-1);
}

.feature-list {
  list-style: none;
  max-width: 560px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.feature-list li {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  font-size: 1rem;
  color: var(--color-ink);
  background: var(--color-cream);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius);
  border: 1px solid rgba(16,30,45,0.08);
}
.check {
  color: #5C8A6B;
  font-weight: 700;
  font-size: 1.1rem;
}

/* ============================================
   Skills Grid
   ============================================ */
.skills {
  padding: var(--space-6) var(--space-3);
}

.skills-grid {
  max-width: 1000px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-3);
}

.skill-card {
  background: var(--color-navy);
  padding: var(--space-3);
  border-radius: var(--radius);
  text-align: center;
}
.skill-num {
  font-family: var(--font-display);
  color: var(--color-gold);
  font-size: 1.5rem;
}
.skill-card h4 {
  color: #F4F1E8;
  font-size: 1.1rem;
  margin-top: 4px;
}
.skill-card p {
  color: var(--color-stone);
  font-size: 0.82rem;
  margin-top: 6px;
  line-height: 1.5;
}

/* ============================================
   Final CTA
   ============================================ */
.final-cta {
  text-align: center;
  padding: var(--space-6) var(--space-3);
  background: var(--color-navy);
}
.final-cta h2 {
  color: #F4F1E8;
  font-size: clamp(1.8rem, 3vw, 2.4rem);
}
.final-cta p {
  color: var(--color-stone);
  margin-top: var(--space-1);
}
.final-cta .btn-secondary {
  border-color: var(--color-gold);
  color: #F4F1E8;
}
.final-cta .btn-secondary:hover {
  background: var(--color-gold);
  color: var(--color-navy);
}
.final-cta .btn-primary {
  background: var(--color-gold);
  color: var(--color-navy);
  border-color: var(--color-gold);
}
.final-cta .btn-primary:hover {
  background: var(--color-gold-bright);
}

/* ============================================
   Footer
   ============================================ */
.site-footer {
  text-align: center;
  padding: var(--space-4) var(--space-3);
  background: var(--color-navy);
  border-top: 1px solid rgba(194,165,86,0.15);
}
.site-footer p {
  font-size: 0.8rem;
  color: var(--color-stone);
}
.site-footer a {
  color: var(--color-gold-bright);
}
.site-footer a:hover { text-decoration: underline; }

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 860px) {
  .skills-grid { grid-template-columns: repeat(2, 1fr); }
  .header-inner { padding: var(--space-2) var(--space-3); }
}

@media (max-width: 480px) {
  .skills-grid { grid-template-columns: 1fr; }
  .hero { padding: var(--space-5) var(--space-2) var(--space-4); }
  .browser-chrome { padding: 10px 12px; }
}

/* ============================================
   REWRITE — New sections (teacher-centered page)
   ============================================ */

/* Challenge Section */
.challenge {
  background: var(--color-cream-dim);
  padding: var(--space-6) var(--space-3);
  border-top: 1px solid rgba(16,30,45,0.06);
}

.challenge-inner {
  max-width: 960px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5);
  align-items: start;
}

.challenge-col p {
  font-size: 1rem;
  color: var(--color-ink);
  margin-bottom: var(--space-2);
  line-height: 1.7;
}

.pull-quote {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-style: italic;
  color: var(--color-navy);
  border-left: 3px solid var(--color-gold);
  padding: var(--space-2) var(--space-3);
  margin-bottom: var(--space-3);
  line-height: 1.4;
}

/* Progress Section */
.progress-section {
  padding: var(--space-6) var(--space-3);
}

.progress-inner {
  max-width: 860px;
  margin: 0 auto;
}

.progress-lead {
  font-size: 1.05rem;
  color: var(--color-ink);
  line-height: 1.7;
  margin-bottom: var(--space-3);
}

.progress-lead + .progress-lead {
  color: var(--color-stone);
  font-size: 0.98rem;
  margin-bottom: var(--space-4);
}

.three-questions {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin: var(--space-2) 0 var(--space-3);
  padding-left: var(--space-3);
  border-left: 3px solid var(--color-gold);
}

.three-questions span {
  font-size: 0.98rem;
  color: var(--color-navy);
  font-weight: 500;
}

.wins-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}

.win-card {
  display: flex;
  align-items: flex-start;
  gap: 0.8rem;
  background: var(--color-cream-dim);
  border: 1px solid rgba(16,30,45,0.08);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius);
}

.win-mark {
  color: var(--color-gold);
  font-weight: 700;
  font-size: 1rem;
  flex-shrink: 0;
  margin-top: 2px;
}

.win-card p {
  font-size: 0.95rem;
  color: var(--color-ink);
  margin: 0;
}

.progress-note {
  font-size: 0.98rem;
  color: var(--color-stone);
  margin-bottom: var(--space-2);
  line-height: 1.7;
}

/* Guided Practice Section */
.guided {
  background: var(--color-cream-dim);
  padding: var(--space-6) var(--space-3);
  border-top: 1px solid rgba(16,30,45,0.06);
}

.section-lede {
  font-size: 1rem;
  color: var(--color-stone);
  margin-top: var(--space-2);
}

.guided-grid {
  max-width: 960px;
  margin: 0 auto var(--space-5);
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3);
}

.guided-card {
  background: var(--color-cream);
  border: 1px solid rgba(16,30,45,0.08);
  padding: var(--space-3);
  border-radius: var(--radius);
}

.guided-card h4 {
  font-size: 1.05rem;
  color: var(--color-navy);
  margin-bottom: 6px;
}

.guided-card p {
  font-size: 0.88rem;
  color: var(--color-stone);
  line-height: 1.6;
}

.guided .browser-frame {
  max-width: 860px;
  margin: 0 auto;
}

/* Visibility Section */
.visibility {
  padding: var(--space-6) var(--space-3);
}

.visibility-inner {
  max-width: 960px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5);
  align-items: start;
}

.visibility-col p {
  font-size: 1rem;
  color: var(--color-ink);
  margin-bottom: var(--space-2);
  line-height: 1.7;
}

.visibility-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.visibility-item {
  display: flex;
  align-items: flex-start;
  gap: 0.8rem;
  font-size: 0.95rem;
  color: var(--color-ink);
}

.vis-mark {
  color: #5C8A6B;
  font-weight: 700;
  flex-shrink: 0;
}

/* Closing Section */
.closing {
  background: var(--color-navy);
  padding: var(--space-6) var(--space-3) var(--space-7);
  text-align: center;
}

.closing-inner {
  max-width: 640px;
  margin: 0 auto;
}

.closing-headline {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  color: #F4F1E8;
  line-height: 1.3;
  margin-bottom: var(--space-1);
}

.closing-sub {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 4vw, 2.6rem);
  color: var(--color-gold);
  font-style: italic;
  font-weight: 500;
  margin: var(--space-3) 0 var(--space-5);
  line-height: 1.2;
  letter-spacing: 0.01em;
}

.closing-body {
  font-size: 0.98rem;
  color: var(--color-stone);
  margin-bottom: var(--space-2);
  line-height: 1.7;
}

.closing .hero-actions {
  margin-top: var(--space-4);
}

.closing .btn-primary {
  background: var(--color-gold);
  color: var(--color-navy);
  border-color: var(--color-gold);
}
.closing .btn-primary:hover {
  background: var(--color-gold-bright);
}
.closing .btn-secondary {
  border-color: var(--color-gold);
  color: #F4F1E8;
}
.closing .btn-secondary:hover {
  background: var(--color-gold);
  color: var(--color-navy);
}

/* Responsive additions */
@media (max-width: 760px) {
  .challenge-inner { grid-template-columns: 1fr; }
  .guided-grid { grid-template-columns: 1fr; }
  .wins-grid { grid-template-columns: 1fr; }
  .visibility-inner { grid-template-columns: 1fr; }
}

/* ============================================
   Payment Options Section
   ============================================ */
.payment {
  background: var(--color-navy);
  padding: var(--space-6) var(--space-3);
  border-top: 1px solid rgba(194, 165, 86, 0.15);
}

.payment .section-head h2 {
  color: #F4F1E8;
}

.payment .eyebrow {
  color: var(--color-gold);
}

.payment .section-lede {
  color: var(--color-stone);
}

.payment-inner {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
}

.payment-card {
  flex: 1;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(194, 165, 86, 0.2);
  border-radius: var(--radius);
  padding: var(--space-4);
  text-align: center;
}

.payment-card-label {
  font-family: var(--font-display);
  font-size: 1.2rem;
  color: #F4F1E8;
  margin-bottom: 0.4rem;
}

.payment-card-desc {
  font-size: 0.88rem;
  color: var(--color-stone);
  margin-bottom: var(--space-3);
  line-height: 1.6;
}

.payment-card-desc strong {
  color: #F4F1E8;
}

.payment-divider {
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-stone);
  padding-top: var(--space-5);
  flex-shrink: 0;
}

.qr-image {
  max-width: 200px;
  margin: 0 auto var(--space-2);
  border-radius: 8px;
  background: #fff;
  padding: 8px;
  display: block;
}

@media (max-width: 640px) {
  .qr-image { max-width: 260px; }
}

.qr-details {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 0.82rem;
  color: var(--color-stone);
  text-align: left;
  background: rgba(0,0,0,0.2);
  border-radius: var(--radius);
  padding: var(--space-2);
  margin: var(--space-2) 0;
}

.qr-details strong {
  color: #F4F1E8;
}

.qr-note {
  font-size: 0.78rem;
  color: var(--color-stone);
  font-style: italic;
  margin-top: var(--space-1);
}

@media (max-width: 640px) {
  .payment-inner {
    flex-direction: column;
    align-items: stretch;
  }
  .payment-divider {
    text-align: center;
    padding-top: 0;
  }
}