/* Landing page styles — loaded after style.css, which provides tokens, fonts & base */

/* ── Layout ── */
.container { max-width: 960px; margin: 0 auto; padding: 0 1.5rem; }

/* ── Buttons ── */
.btn {
  display: inline-block;
  padding: 0.5rem 1.2rem;
  font-size: 0.9rem;
  font-weight: 600;
  font-family: var(--f-sans);
  border-radius: 6px;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: background 0.15s, transform 0.1s;
}
.btn:active { transform: scale(0.98); }
.btn-landing-primary { background: var(--c-terracotta); color: #fff; }
.btn-landing-primary:hover { background: #B5492D; }
.btn-ghost { background: transparent; color: var(--c-text-muted); border: 1px solid var(--c-border); }
.btn-ghost:hover { background: var(--c-surface); color: var(--c-text); }

/* ── Section spacing ── */
section { padding: 5rem 0; }
section:nth-child(even) { background: #fff; }

.section-label {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--c-terracotta);
  margin-bottom: 0.5rem;
}

.section-heading {
  font-size: 1.75rem;
  margin: 0 0 1rem;
  color: var(--c-charcoal);
  line-height: 1.3;
}

.section-sub {
  font-size: 1.05rem;
  color: var(--c-text-muted);
  margin: 0 0 2.5rem;
  max-width: 520px;
}

/* ══════════════════════════════════════
   Hero
   ══════════════════════════════════════ */
.hero { padding: 6rem 0 5rem; text-align: center; }

.hero-wordmark {
  font-family: var(--f-serif);
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: lowercase;
  color: var(--c-charcoal);
  margin-bottom: 2rem;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  margin: 0 0 1rem;
  color: var(--c-charcoal);
  line-height: 1.15;
}

.hero h1 em { font-style: italic; color: var(--c-terracotta); }

.hero-sub {
  font-size: 1.15rem;
  color: var(--c-text-muted);
  max-width: 520px;
  margin: 0 auto 2.5rem;
  line-height: 1.6;
}

.hero-actions { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }

/* ══════════════════════════════════════
   Method (3 columns)
   ══════════════════════════════════════ */
.method-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; }

.method-card {
  padding: 1.75rem;
  background: var(--c-cream);
  border: 1px solid var(--c-border);
  border-radius: 12px;
}

.method-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  margin-bottom: 1rem;
  font-weight: 700;
}

.method-card:nth-child(1) .method-icon { background: #F9EDE8; color: var(--c-terracotta); }
.method-card:nth-child(2) .method-icon { background: #E8F0EA; color: var(--c-sage); }
.method-card:nth-child(3) .method-icon { background: #EBF1F5; color: var(--c-blue); }

.method-card h3 {
  font-family: var(--f-sans);
  font-size: 1rem;
  font-weight: 600;
  margin: 0 0 0.5rem;
  color: var(--c-charcoal);
}

.method-card p { font-size: 0.9rem; color: var(--c-text-muted); margin: 0; line-height: 1.55; }

/* ══════════════════════════════════════
   Walkthrough (alternating steps)
   ══════════════════════════════════════ */
.steps { display: flex; flex-direction: column; gap: 4rem; }

.step {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.step:nth-child(even) .step-text { order: 2; }
.step:nth-child(even) .step-visual { order: 1; }

.step-number {
  font-family: var(--f-serif);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--c-terracotta);
  margin-bottom: 0.5rem;
}

.step-text h3 { font-size: 1.25rem; margin: 0 0 0.6rem; color: var(--c-charcoal); }
.step-text p { font-size: 0.95rem; color: var(--c-text-muted); margin: 0; line-height: 1.6; }

.step-visual {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: 12px;
  aspect-ratio: 4 / 3;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.step-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 11px;
}

.screenshot-placeholder {
  font-size: 0.8rem;
  color: var(--c-text-muted);
  text-align: center;
  padding: 1rem;
}

/* ══════════════════════════════════════
   Features grid (2x3)
   ══════════════════════════════════════ */
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; }

.feature-card {
  padding: 1.5rem;
  border: 1px solid var(--c-border);
  border-radius: 10px;
  background: var(--c-cream);
}

.feature-stat {
  font-family: var(--f-serif);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--c-charcoal);
  margin-bottom: 0.25rem;
  line-height: 1.2;
}

.feature-card h3 {
  font-family: var(--f-sans);
  font-size: 0.9rem;
  font-weight: 600;
  margin: 0 0 0.35rem;
  color: var(--c-charcoal);
}

.feature-card p { font-size: 0.82rem; color: var(--c-text-muted); margin: 0; line-height: 1.5; }

/* ══════════════════════════════════════
   Profile showcase
   ══════════════════════════════════════ */
.showcase { text-align: center; }

.showcase-frame {
  margin: 0 auto;
  max-width: 700px;
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: 12px;
  aspect-ratio: 16 / 10;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.showcase-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 11px;
}

.showcase-caption {
  font-size: 0.9rem;
  color: var(--c-text-muted);
  font-style: italic;
  margin-top: 1.25rem;
}

/* ══════════════════════════════════════
   Technical differentiators
   ══════════════════════════════════════ */
.tech-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; }

.tech-item h3 {
  font-family: var(--f-sans);
  font-size: 0.95rem;
  font-weight: 600;
  margin: 0 0 0.3rem;
  color: var(--c-charcoal);
}

.tech-item p { font-size: 0.85rem; color: var(--c-text-muted); margin: 0; line-height: 1.55; }

/* ══════════════════════════════════════
   Persona callout
   ══════════════════════════════════════ */
.callout {
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
  padding: 3rem 2.5rem;
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: 14px;
}

.callout h2 { font-size: 1.3rem; margin: 0 0 0.75rem; color: var(--c-charcoal); }
.callout p { font-size: 0.95rem; color: var(--c-text-muted); margin: 0; line-height: 1.6; }

/* ══════════════════════════════════════
   CTA footer
   ══════════════════════════════════════ */
.cta-footer {
  text-align: center;
  padding: 5rem 0 4rem;
  background: var(--c-charcoal);
  color: #fff;
}

.cta-footer h2 { font-size: 1.75rem; margin: 0 0 0.5rem; color: #fff; }
.cta-footer .cta-sub { font-size: 1rem; color: rgba(255,255,255,0.6); margin-bottom: 2rem; }
.cta-footer .btn-landing-primary { font-size: 1rem; padding: 0.65rem 2rem; }

.site-footer {
  text-align: center;
  padding: 1.5rem 0;
  background: var(--c-charcoal);
  border-top: 1px solid rgba(255,255,255,0.08);
  font-size: 0.8rem;
  color: rgba(255,255,255,0.35);
}

.site-footer a { color: rgba(255,255,255,0.5); text-decoration: none; }
.site-footer a:hover { color: rgba(255,255,255,0.8); }

/* ══════════════════════════════════════
   Responsive
   ══════════════════════════════════════ */
@media (max-width: 768px) {
  section { padding: 3.5rem 0; }
  .hero { padding: 4rem 0 3.5rem; }
  .method-grid { grid-template-columns: 1fr; gap: 1rem; }

  .step { grid-template-columns: 1fr; gap: 1.5rem; }
  .step:nth-child(even) .step-text { order: 1; }
  .step:nth-child(even) .step-visual { order: 2; }

  .features-grid { grid-template-columns: 1fr 1fr; }

  .cefr-track { grid-template-columns: repeat(2, 1fr); gap: 1.5rem 1rem; }
  .cefr-track::before { display: none; }

  .persona-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .hero h1 { font-size: 1.75rem; }
  .features-grid { grid-template-columns: 1fr; }
  .cefr-track { grid-template-columns: 1fr 1fr; }
  .hero-cefr-strip { gap: 0.35rem; }
}

/* ══════════════════════════════════════
   CEFR level colors (shared)
   All active levels use terracotta; B2 uses charcoal as the "destination"
   ══════════════════════════════════════ */
.cefr-a1 { background: var(--c-terracotta); }
.cefr-a2 { background: var(--c-terracotta); }
.cefr-b1 { background: var(--c-terracotta); }
.cefr-b2 { background: var(--c-charcoal); }

/* ══════════════════════════════════════
   CEFR Progression Track
   ══════════════════════════════════════ */
.cefr-track {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  position: relative;
  padding-top: 1.5rem;
  margin-bottom: 1.5rem;
}

/* Connector line through badge centers.
   12.5% = centre of first/last column in a 4-col grid (100%/4/2).
   --cefr-badge-r mirrors the 52px badge height set on .cefr-badge. */
.cefr-track { --cefr-badge-r: 26px; }
.cefr-track::before {
  content: '';
  position: absolute;
  top: calc(1.5rem + var(--cefr-badge-r));
  left: 12.5%;
  right: 12.5%;
  height: 2px;
  background: var(--c-border);
  z-index: 0;
}

.cefr-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  position: relative;
  z-index: 1;
}

.cefr-badge {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--f-sans);
  font-size: 0.75rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 0.75rem;
  box-shadow: 0 2px 8px rgba(45,41,38,0.15);
}

.cefr-level-name {
  font-family: var(--f-sans);
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--c-charcoal);
  margin-bottom: 0.75rem;
}

.cefr-skills {
  list-style: none;
  padding: 0;
  margin: 0;
  text-align: left;
  width: 100%;
}

.cefr-skills li {
  font-size: 0.8rem;
  color: var(--c-text-muted);
  line-height: 1.55;
  padding: 0.15rem 0 0.15rem 0.9rem;
  position: relative;
}

.cefr-skills li::before {
  content: '·';
  position: absolute;
  left: 0.15rem;
  font-size: 1.1em;
  line-height: 1.4;
}

.cefr-skills li::before { color: var(--c-terracotta); }

.cefr-note {
  text-align: center;
  font-size: 0.875rem;
  color: var(--c-text-muted);
  font-style: italic;
  margin: 0.5rem auto 0;
  max-width: 500px;
}

/* ══════════════════════════════════════
   Persona Grid
   ══════════════════════════════════════ */
.persona-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
  margin-bottom: 2rem;
}

.persona-card {
  padding: 1.75rem;
  background: var(--c-cream);
  border: 1px solid var(--c-border);
  border-radius: 12px;
  border-left: 4px solid var(--c-terracotta);
  transition: transform 0.15s, box-shadow 0.15s;
}

.persona-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(45,41,38,0.08);
}

.persona-label {
  display: block;
  font-family: var(--f-serif);
  font-style: italic;
  font-size: 0.9rem;
  color: var(--c-terracotta);
  margin-bottom: 0.2rem;
}

.persona-card h3 {
  font-family: var(--f-sans);
  font-size: 1rem;
  font-weight: 600;
  margin: 0 0 0.5rem;
  color: var(--c-charcoal);
}

.persona-card p {
  font-size: 0.88rem;
  color: var(--c-text-muted);
  margin: 0;
  line-height: 1.55;
}

.persona-note {
  text-align: center;
  max-width: 560px;
  margin: 0 auto;
}

.persona-note p {
  font-size: 0.875rem;
  color: var(--c-text-muted);
  margin: 0;
  line-height: 1.65;
  font-style: italic;
}