/* ============================================================
   VERNAL — homepage.css
   Homepage-specific section styles.
   Source: WD Marketing Landing Page Concept v1.
   Tokens mapped to --c-* system from global.css.
   ============================================================ */

/* ============================================================
   SHARED SECTION UTILITIES
   ============================================================ */

.section-eyebrow {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-primary);
  margin-bottom: 16px;
}

/* ============================================================
   HERO
   ============================================================ */

.hero {
  background: var(--c-bg);
  background-image: radial-gradient(circle, rgba(74, 107, 64, 0.065) 1px, transparent 1px);
  background-size: 28px 28px;
  padding: 96px var(--sp-5) 100px;
  border-bottom: 1px solid var(--c-border);
}

@media (min-width: 768px) {
  .hero { padding: 96px var(--sp-7) 100px; }
}

.hero-inner {
  max-width: var(--max-w);
  margin: 0 auto;
}

.hero-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-primary);
  margin-bottom: 28px;
}

.hero-label-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--c-gold);
}

.hero-headline {
  font-family: var(--font-display);
  font-size: clamp(36px, 4.8vw, 58px);
  font-weight: 600;
  line-height: 1.12;
  color: var(--c-text);
  max-width: 820px;
  margin-bottom: 28px;
  letter-spacing: -0.02em;
}

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

.hero-sub {
  font-size: 17px;
  color: var(--c-text-2);
  max-width: 680px;
  line-height: 1.7;
  margin-bottom: 44px;
  font-weight: 400;
}

.hero-form {
  display: flex;
  gap: 10px;
  max-width: 480px;
  flex-wrap: wrap;
}

.hero-input {
  flex: 1;
  min-width: 200px;
  height: 48px;
  background: var(--c-surface);
  border: 1.5px solid var(--c-border);
  border-radius: 8px;
  padding: 0 16px;
  font-family: var(--font-ui);
  font-size: 14px;
  color: var(--c-text);
  outline: none;
  transition: border-color var(--t-fast) var(--ease);
}

.hero-input::placeholder { color: var(--c-text-3); }
.hero-input:focus { border-color: var(--c-primary); }

.hero-btn {
  height: 48px;
  background: var(--c-primary);
  color: var(--c-text-on-primary);
  border: none;
  border-radius: 8px;
  padding: 0 24px;
  font-family: var(--font-ui);
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  white-space: nowrap;
  transition: background var(--t-fast) var(--ease);
  letter-spacing: 0.01em;
}

.hero-btn:hover { background: var(--c-primary-hover); }

.hero-form-note {
  width: 100%;
  font-size: 12px;
  color: var(--c-text-3);
  margin-top: 10px;
  line-height: 1.5;
}

.hero-meta {
  display: flex;
  align-items: center;
  gap: 32px;
  margin-top: 72px;
  padding-top: 32px;
  border-top: 1px solid var(--c-border);
  flex-wrap: wrap;
}

.hero-meta-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--c-text-3);
}

.hero-meta-item svg { flex-shrink: 0; }

.hero-meta-item strong {
  color: var(--c-text-2);
  font-weight: 600;
}

/* ============================================================
   WHAT IT IS
   ============================================================ */

.what {
  background: var(--c-surface);
  padding: 96px var(--sp-5);
  border-bottom: 1px solid var(--c-border);
}

@media (min-width: 768px) {
  .what { padding: 96px var(--sp-7); }
}

.what-inner {
  max-width: var(--max-w);
  margin: 0 auto;
}

.what-headline {
  font-family: var(--font-display);
  font-size: clamp(24px, 2.8vw, 32px);
  font-weight: 600;
  line-height: 1.25;
  color: var(--c-text);
  max-width: 640px;
  margin-bottom: 24px;
  letter-spacing: -0.01em;
}

.what-body {
  font-size: 16px;
  color: var(--c-text-2);
  max-width: 620px;
  line-height: 1.75;
  margin-bottom: 64px;
}

.what-body p + p { margin-top: 16px; }

.capabilities {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--c-border);
  border: 1px solid var(--c-border);
  border-radius: 12px;
  overflow: hidden;
}

@media (max-width: 600px) {
  .capabilities { grid-template-columns: 1fr; }
}

.cap-card {
  background: var(--c-surface);
  padding: 32px 36px;
  transition: background var(--t-fast) var(--ease);
}

.cap-card:hover { background: var(--c-bg); }

.cap-icon {
  width: 36px;
  height: 36px;
  background: var(--c-green-subtle);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.cap-title {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 600;
  color: var(--c-text);
  margin-bottom: 8px;
}

.cap-desc {
  font-size: 13px;
  color: var(--c-text-2);
  line-height: 1.65;
}

/* ============================================================
   OPEN SOURCE
   ============================================================ */

.oss {
  background: var(--c-nav-bg);
  padding: 88px var(--sp-5);
  border-bottom: 1px solid rgba(0, 0, 0, 0.15);
}

@media (min-width: 768px) {
  .oss { padding: 88px var(--sp-7); }
}

.oss-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: 48px;
}

@media (min-width: 900px) {
  .oss-inner {
    grid-template-columns: 1fr 360px;
    gap: 64px;
    align-items: center;
  }
}

.oss-eyebrow {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(240, 237, 230, 0.5);
  margin-bottom: 16px;
}

.oss-headline {
  font-family: var(--font-display);
  font-size: clamp(22px, 2.4vw, 28px);
  font-weight: 600;
  line-height: 1.3;
  color: var(--c-text-on-primary);
  margin-bottom: 20px;
  letter-spacing: -0.01em;
}

.oss-body {
  font-size: 15px;
  color: rgba(240, 237, 230, 0.75);
  line-height: 1.75;
  max-width: 540px;
}

.oss-body strong {
  color: var(--c-text-on-primary);
  font-weight: 600;
}

.oss-github-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 28px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  padding: 10px 20px;
  font-family: var(--font-ui);
  font-size: 13px;
  font-weight: 600;
  color: var(--c-text-on-primary);
  transition: background var(--t-fast) var(--ease);
  text-decoration: none;
}

.oss-github-btn:hover { background: rgba(255, 255, 255, 0.16); }

.oss-right {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 12px;
  padding: 32px;
}

.oss-tier { margin-bottom: 24px; }
.oss-tier:last-child { margin-bottom: 0; }

.oss-tier-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 10px;
}

.oss-tier-label.free { color: var(--c-gold); }
.oss-tier-label.paid { color: rgba(240, 237, 230, 0.45); }

.oss-tier-items {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.oss-tier-item {
  font-size: 12px;
  color: rgba(240, 237, 230, 0.7);
  display: flex;
  align-items: center;
  gap: 8px;
  line-height: 1.4;
}

.oss-tier-item::before {
  content: '';
  width: 4px;
  height: 4px;
  border-radius: 50%;
  flex-shrink: 0;
}

.oss-tier-item.free-item::before { background: var(--c-gold); opacity: 0.7; }
.oss-tier-item.paid-item::before { background: rgba(240, 237, 230, 0.3); }

.oss-divider {
  border: none;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  margin: 20px 0;
}

/* ============================================================
   DEVLOG
   ============================================================ */

.devlog {
  background: var(--c-bg);
  padding: 96px var(--sp-5);
  border-bottom: 1px solid var(--c-border);
}

@media (min-width: 768px) {
  .devlog { padding: 96px var(--sp-7); }
}

.devlog-inner {
  max-width: var(--max-w);
  margin: 0 auto;
}

.devlog-header {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  align-items: end;
  margin-bottom: 56px;
}

@media (min-width: 900px) {
  .devlog-header { grid-template-columns: 1fr 400px; gap: 64px; }
}

.devlog-headline {
  font-family: var(--font-display);
  font-size: clamp(24px, 2.8vw, 32px);
  font-weight: 600;
  line-height: 1.25;
  color: var(--c-text);
  margin-bottom: 16px;
  letter-spacing: -0.01em;
}

.devlog-sub {
  font-size: 15px;
  color: var(--c-text-2);
  line-height: 1.7;
  max-width: 520px;
}

.devlog-form {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: 10px;
  padding: 24px;
}

.devlog-form-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--c-text);
  margin-bottom: 4px;
}

.devlog-form-sub {
  font-size: 12px;
  color: var(--c-text-3);
  margin-bottom: 14px;
  line-height: 1.5;
}

.devlog-form-row {
  display: flex;
  gap: 8px;
}

.devlog-input {
  flex: 1;
  height: 40px;
  background: var(--c-bg);
  border: 1.5px solid var(--c-border);
  border-radius: 6px;
  padding: 0 12px;
  font-family: var(--font-ui);
  font-size: 13px;
  color: var(--c-text);
  outline: none;
  transition: border-color var(--t-fast) var(--ease);
}

.devlog-input::placeholder { color: var(--c-text-3); }
.devlog-input:focus { border-color: var(--c-primary); }

.devlog-btn {
  height: 40px;
  background: var(--c-primary);
  color: var(--c-text-on-primary);
  border: none;
  border-radius: 6px;
  padding: 0 18px;
  font-family: var(--font-ui);
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  transition: background var(--t-fast) var(--ease);
  white-space: nowrap;
}

.devlog-btn:hover { background: var(--c-primary-hover); }

.post-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

@media (min-width: 640px) {
  .post-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 900px) {
  .post-grid { grid-template-columns: repeat(3, 1fr); }
}

.post-card {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: 10px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: border-color var(--t-fast) var(--ease), box-shadow var(--t-fast) var(--ease);
}

.post-card:hover {
  border-color: var(--c-primary);
  box-shadow: 0 2px 16px rgba(74, 107, 64, 0.08);
}

.post-card.coming-soon { opacity: 0.55; pointer-events: none; }

.post-card-thumb {
  height: 7px;
  background: var(--c-green-light);
}

.post-card-thumb.gold {
  background: linear-gradient(90deg, var(--c-green-light), var(--c-gold) 60%, var(--c-gold));
  opacity: 0.6;
}

/* Inline hex acceptable here — purely decorative, no semantic value */
.post-card-thumb.soil {
  background: linear-gradient(90deg, #E2DDD4, #9A7A58);
}

.post-card-body {
  padding: 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.post-card-tag {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--c-primary);
  margin-bottom: 10px;
}

.post-card-tag.coming { color: var(--c-text-3); }

.post-card-title {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
  color: var(--c-text);
  margin-bottom: 10px;
  flex: 1;
}

.post-card-excerpt {
  font-size: 12px;
  color: var(--c-text-2);
  line-height: 1.6;
  margin-bottom: auto;
}

.post-card-meta {
  font-size: 11px;
  color: var(--c-text-3);
  margin-top: 16px;
  display: flex;
  align-items: center;
  gap: 6px;
}