/* ── Base ─────────────────────────────────────── */

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-text);
  background: var(--color-bg);
}

/* ── NAV ───────────────────────────────────────── */

#navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--gutter);
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow var(--t-base);
}

#navbar.scrolled {
  box-shadow: 0 2px 16px rgba(28, 58, 43, 0.08);
}

.nav-logo {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1.25rem;
  color: var(--color-primary);
  letter-spacing: -0.01em;
}

.nav-links {
  display: flex;
  gap: 0.5rem;
  list-style: none;
}

.nav-links a {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--color-primary);
  padding: 0.35rem 0.9rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: background var(--t-fast), border-color var(--t-fast), color var(--t-fast);
}

.nav-links a:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}

/* ── HERO ──────────────────────────────────────── */

#hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--space-2xl) var(--gutter);
}

.hero-content {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
}

#hero h1 {
  display: flex;
  flex-direction: column;
  gap: 0.1em;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(2.8rem, 5.5vw, 4.5rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--color-primary);
}

.hero-line1 {
  font-style: normal;
}

.hero-line2 {
  font-style: italic;
  color: var(--color-accent);
}

.hero-sub {
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--color-text-muted);
  max-width: 44ch;
}

.btn-cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  align-self: flex-start;
  margin-top: var(--space-xs);
  padding: 0.75rem 1.5rem;
  background: var(--color-primary);
  color: #fff;
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: var(--radius-pill);
  transition: background var(--t-fast), transform var(--t-fast);
}

.btn-cta:hover {
  background: var(--color-accent);
  transform: translateY(-1px);
}

.hero-visual {
  width: 100%;
  opacity: 0.9;
}

.hero-visual svg {
  width: 100%;
  height: auto;
}

/* ── TOOLS SECTION ─────────────────────────────── */

#tools {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--space-xl) var(--gutter) var(--space-2xl);
  border-top: 1px solid var(--color-border);
}

.section-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 400;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--space-lg);
}

/* ── TOOL GRID ─────────────────────────────────── */

.tools-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

/* ── TOOL CARD ─────────────────────────────────── */

.tool-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-md) var(--space-md) var(--space-lg);
  cursor: pointer;
  transition: border-color var(--t-base), box-shadow var(--t-base), transform var(--t-base);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.tool-card:hover,
.tool-card:focus-visible {
  border-color: var(--color-accent);
  box-shadow: 0 4px 24px rgba(28, 58, 43, 0.10);
  transform: translateY(-2px);
  outline: none;
}

.tool-card.active {
  border-color: var(--color-primary);
  box-shadow: 0 4px 24px rgba(28, 58, 43, 0.14);
}

.tool-card--soon {
  opacity: 0.6;
}

.tool-card--soon:hover,
.tool-card--soon:focus-visible {
  transform: none;
  box-shadow: none;
  border-color: var(--color-border);
  opacity: 0.75;
}

.tool-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}

.tool-icon {
  width: 24px;
  height: 24px;
  color: var(--color-accent);
  flex-shrink: 0;
}

.tool-card--soon .tool-icon {
  color: var(--color-text-muted);
}

.tool-card h3 {
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-primary);
  line-height: 1.3;
}

.tool-card p {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ── BADGES ────────────────────────────────────── */

.badge {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.06em;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-pill);
  white-space: nowrap;
}

.badge-live  { background: var(--badge-live-bg);  color: var(--badge-live-text);  }
.badge-beta  { background: var(--badge-beta-bg);  color: var(--badge-beta-text);  }
.badge-alpha { background: var(--badge-alpha-bg); color: var(--badge-alpha-text); }
.badge-wip   { background: var(--badge-wip-bg);   color: var(--badge-wip-text);   }
.badge-soon  { background: var(--badge-soon-bg);  color: var(--badge-soon-text);  }

/* ── CADENCE GRID (playlist detail) ───────────────── */

.cadence-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0.75rem;
  margin-bottom: var(--space-md);
}

.cadence-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  padding: 0.75rem 0.5rem;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255,255,255,0.12);
  background: rgba(255,255,255,0.05);
  transition: background var(--t-fast), border-color var(--t-fast), transform var(--t-fast);
}

.cadence-item:hover {
  background: rgba(255,255,255,0.12);
  border-color: rgba(200,169,110,0.5);
  transform: translateY(-2px);
}

.cadence-item.cadence-soon {
  opacity: 0.35;
  cursor: default;
  pointer-events: none;
}

/* Signal bars */
.cadence-bars {
  display: flex;
  align-items: flex-end;
  gap: 2px;
  height: 22px;
}

.cadence-bars span {
  display: block;
  width: 5px;
  border-radius: 2px 2px 0 0;
  background: rgba(255,255,255,0.2);
  transition: background var(--t-fast);
}

.cadence-bars span.lit {
  background: var(--color-highlight);
}

/* bar heights: 5 steps */
.cadence-bars span:nth-child(1) { height:  6px; }
.cadence-bars span:nth-child(2) { height: 10px; }
.cadence-bars span:nth-child(3) { height: 14px; }
.cadence-bars span:nth-child(4) { height: 18px; }
.cadence-bars span:nth-child(5) { height: 22px; }

.cadence-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: rgba(255,255,255,0.85);
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.cadence-soon-label {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: rgba(255,255,255,0.4);
  letter-spacing: 0.06em;
}

@media (max-width: 560px) {
  .cadence-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}
.badge-wip   { background: var(--badge-wip-bg);   color: var(--badge-wip-text);   }
.badge-wip   { background: var(--badge-wip-bg);   color: var(--badge-wip-text);   }

/* ── DETAIL PANEL ──────────────────────────────── */

.tool-detail-wrapper {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows var(--t-slow), margin-top var(--t-slow);
  margin-top: 0;
}

.tool-detail-wrapper.open {
  grid-template-rows: 1fr;
  margin-top: 1rem;
}

.tool-detail-inner {
  overflow: hidden;
  min-height: 0;
}

/* All panels hidden by default; only .active is shown */
.tool-detail {
  display: none;
  background: var(--color-primary);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  color: #fff;
}

.tool-detail.active {
  display: block;
}

.detail-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--space-md);
  gap: var(--space-md);
}

.detail-header h3 {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: 1.5rem;
  color: #fff;
  margin-top: var(--space-xs);
  letter-spacing: -0.01em;
}

.detail-close {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.15);
  color: rgba(255, 255, 255, 0.85);
  font-size: 0.85rem;
  line-height: 1;
  transition: background var(--t-fast), color var(--t-fast);
}

.detail-close:hover {
  background: rgba(255, 255, 255, 0.28);
  color: #fff;
}

.detail-description {
  font-size: 0.9375rem;
  color: rgba(255,255,255,0.75);
  line-height: 1.7;
  max-width: 68ch;
  margin-bottom: var(--space-md);
}

.detail-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  margin-bottom: var(--space-md);
}

.detail-tags .tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(255,255,255,0.18);
  color: rgba(255,255,255,0.65);
}

.btn-detail {
  display: inline-flex;
  align-items: center;
  padding: 0.6rem 1.25rem;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: var(--radius-pill);
  font-size: 0.875rem;
  font-weight: 500;
  color: #fff;
  transition: background var(--t-fast);
}

.btn-detail:hover {
  background: rgba(255,255,255,0.2);
}

.detail-coming {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.4);
  font-style: italic;
}

/* ── ABOUT ─────────────────────────────────────── */

#about {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.about-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--space-2xl) var(--gutter);
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: var(--space-xl);
  align-items: start;
}

#about .eyebrow {
  margin-bottom: var(--space-sm);
}

#about h2 {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(1.9rem, 3.5vw, 2.8rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--color-primary);
}

.about-body {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  padding-top: 0.25rem;
}

.about-body p {
  font-size: 1rem;
  color: var(--color-text-muted);
  line-height: 1.75;
}

.about-body em {
  font-style: italic;
  color: var(--color-primary);
}

/* ── FOOTER ────────────────────────────────────── */

#footer {
  background: var(--color-primary);
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--space-xl) var(--gutter);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
  text-align: center;
}

.footer-logo {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: 1.5rem;
  color: rgba(255,255,255,0.9);
  letter-spacing: -0.01em;
}

.footer-email {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--color-highlight);
  letter-spacing: 0.02em;
  transition: opacity var(--t-fast);
}

.footer-email:hover {
  opacity: 0.75;
}

.footer-copy {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.3);
  margin-top: var(--space-xs);
}

/* ── ANIMATIONS ────────────────────────────────── */

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

.hero-content {
  animation: fadeUp 0.7s var(--ease-out) both;
}

.hero-visual {
  animation: fadeUp 0.7s 0.15s var(--ease-out) both;
}

.tool-card {
  animation: fadeUp 0.5s var(--ease-out) both;
}

.tool-card:nth-child(1) { animation-delay: 0.05s; }
.tool-card:nth-child(2) { animation-delay: 0.10s; }
.tool-card:nth-child(3) { animation-delay: 0.15s; }
.tool-card:nth-child(4) { animation-delay: 0.20s; }
.tool-card:nth-child(5) { animation-delay: 0.25s; }

/* ── RESPONSIVE ────────────────────────────────── */

@media (max-width: 900px) {
  #hero {
    grid-template-columns: 1fr;
    padding-top: var(--space-xl);
    padding-bottom: var(--space-xl);
  }

  .hero-visual {
    order: -1;
    opacity: 0.7;
  }

  .tools-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .about-inner {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }
}

@media (max-width: 560px) {
  .tools-grid {
    grid-template-columns: 1fr;
  }

  .nav-links {
    gap: var(--space-md);
  }
}