/* Coffee Piano — marketing site (matches Harmony Lab studio) */

:root {
  --bg: #07080c;
  --bg-elevated: #0f1118;
  --bg-panel: #141820;
  --border: rgba(255, 255, 255, 0.08);
  --text: #f4f4f6;
  --text-muted: #8b92a8;
  --accent: #e8c547;
  --accent-dim: #c9a227;
  --cyan: #4ecdc4;
  --radius: 14px;
  --radius-sm: 8px;
  --shadow: 0 12px 40px rgba(0, 0, 0, 0.5);
  --font: 'DM Sans', system-ui, sans-serif;
  --font-display: 'Instrument Sans', 'DM Sans', sans-serif;
  --max: 1120px;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.55;
  color: var(--text);
  background: var(--bg);
  background-image:
    radial-gradient(ellipse 90% 55% at 50% -15%, rgba(232, 197, 71, 0.14), transparent),
    radial-gradient(ellipse 50% 40% at 100% 20%, rgba(78, 205, 196, 0.07), transparent);
}

a { color: var(--cyan); text-decoration: none; }
a:hover { text-decoration: underline; }

img { max-width: 100%; height: auto; display: block; }

.container {
  width: min(100% - 2rem, var(--max));
  margin-inline: auto;
}

/* Nav */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(14px);
  background: rgba(7, 8, 12, 0.82);
  border-bottom: 1px solid var(--border);
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--text);
  text-decoration: none;
}

.brand-logo {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  /* Warm black mug → soft gold; keeps cup + piano-key detail */
  filter: sepia(0.55) saturate(0.75) hue-rotate(352deg) brightness(1.02);
}

.brand-text {
  background: linear-gradient(135deg, #f5e6a8, var(--accent), var(--accent-dim));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 500;
  text-decoration: none;
}

.nav-links a:hover { color: var(--text); }

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.lang-toggle {
  display: flex;
  border: 1px solid var(--border);
  border-radius: 999px;
  overflow: hidden;
}

.lang-btn {
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.35rem 0.65rem;
  cursor: pointer;
}

.lang-btn.is-active {
  background: rgba(232, 197, 71, 0.15);
  color: var(--accent);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.9rem;
  padding: 0.55rem 1.1rem;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.15s, background 0.15s, border-color 0.15s;
}

.btn:hover { text-decoration: none; transform: translateY(-1px); }

.btn-ghost {
  background: transparent;
  border-color: var(--border);
  color: var(--text);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-dim));
  color: #1a1408;
  border: none;
  box-shadow: 0 4px 20px rgba(232, 197, 71, 0.25);
}

.btn-primary:hover { filter: brightness(1.05); }

.btn-lg { padding: 0.85rem 1.5rem; font-size: 1rem; }

/* Hero */
.hero {
  padding: 4rem 0 3rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: center;
}

.hero-badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--cyan);
  border: 1px solid rgba(78, 205, 196, 0.35);
  padding: 0.3rem 0.65rem;
  border-radius: 999px;
  margin-bottom: 1rem;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3rem);
  line-height: 1.1;
  margin: 0 0 1rem;
  letter-spacing: -0.02em;
}

.hero-lead {
  color: var(--text-muted);
  font-size: 1.1rem;
  margin: 0 0 1.5rem;
  max-width: 32rem;
}

.hero-cta { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-bottom: 1.75rem; }

.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.hero-stats li {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.hero-stats strong { display: block; color: var(--accent); font-size: 1rem; }

.hero-visual {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.hero-visual img { width: 100%; aspect-ratio: 4/3; object-fit: cover; }

.play-fab {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.35);
  border: none;
  cursor: pointer;
  color: white;
}

.play-fab svg { width: 64px; height: 64px; opacity: 0.95; }

/* Sections */
.section { padding: 4rem 0; }

.section-head {
  text-align: center;
  max-width: 36rem;
  margin: 0 auto 2.5rem;
}

.section-head h2 {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  margin: 0 0 0.5rem;
}

.section-head p { color: var(--text-muted); margin: 0; }

.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}

.feature-card {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.35rem;
}

.feature-card h3 {
  margin: 0.75rem 0 0.4rem;
  font-size: 1.05rem;
}

.feature-card p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.feature-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(232, 197, 71, 0.12);
  color: var(--accent);
}

/* Who it's for */
.section--who {
  background: rgba(20, 24, 32, 0.5);
  border-block: 1px solid var(--border);
}

.who-list {
  list-style: none;
  margin: 0 auto;
  padding: 0;
  max-width: 42rem;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.who-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 1rem;
  color: var(--text-muted);
  line-height: 1.45;
}

.who-bullet {
  flex-shrink: 0;
  width: 8px;
  height: 8px;
  margin-top: 0.45rem;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--cyan));
  box-shadow: 0 0 8px rgba(232, 197, 71, 0.5);
}

/* Video */
.video-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.video-row--single {
  grid-template-columns: 1fr;
  max-width: 720px;
  margin-inline: auto;
}

.video-card {
  position: relative;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
}

.video-card img { width: 100%; aspect-ratio: 16/10; object-fit: cover; display: block; }

.video-card p {
  padding: 0.85rem 1rem;
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.play-fab--card {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.35);
  border: none;
  cursor: pointer;
  color: var(--accent);
}

.video-placeholder {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  min-height: 280px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.video-placeholder-inner {
  text-align: center;
  padding: 2rem 1.5rem;
  max-width: 28rem;
}

.video-placeholder-inner svg,
.video-placeholder-inner i {
  width: 48px;
  height: 48px;
  color: var(--accent);
  margin-bottom: 1rem;
}

.video-placeholder-inner p {
  margin: 0;
  color: var(--text-muted);
  font-weight: 500;
  font-size: 0.95rem;
}

/* FAQ accordion */
.faq-accordion {
  max-width: 720px;
  margin: 0 auto;
}

.accordion-item {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-bottom: 0.5rem;
  background: var(--bg-panel);
  overflow: hidden;
}

.accordion-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.15rem;
  border: none;
  background: transparent;
  color: var(--text);
  font-family: var(--font);
  font-size: 1rem;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
}

.accordion-trigger:hover { color: var(--accent); }

.accordion-chevron {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  color: var(--text-muted);
  transition: transform 0.2s ease;
}

.accordion-item.is-open .accordion-chevron {
  transform: rotate(180deg);
  color: var(--accent);
}

.accordion-panel {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.25s ease;
}

.accordion-item.is-open .accordion-panel {
  max-height: 320px;
}

.accordion-panel p {
  margin: 0;
  padding: 0 1.15rem 1rem;
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.55;
}

.pricing-inc-label {
  margin: 0 0 0.5rem;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.pricing-buy { width: 100%; }

/* Pricing */
.pricing-wrap {
  display: flex;
  justify-content: center;
}

.pricing-card {
  width: min(100%, 420px);
  background: linear-gradient(160deg, rgba(232, 197, 71, 0.08), rgba(78, 205, 196, 0.05));
  border: 1px solid rgba(232, 197, 71, 0.35);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: var(--shadow);
}

.pricing-card h2 {
  font-family: var(--font-display);
  margin: 0 0 0.25rem;
  font-size: 1.5rem;
}

.pricing-sub { color: var(--text-muted); margin: 0 0 1.5rem; font-size: 0.95rem; }

.price-line {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
}

.price-amount {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
}

.price-period { color: var(--text-muted); font-size: 0.95rem; }

.pricing-list {
  list-style: none;
  margin: 0 0 1.5rem;
  padding: 0;
}

.pricing-list li {
  display: flex;
  gap: 0.5rem;
  align-items: flex-start;
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
  color: var(--text-muted);
}

.pricing-list li::before {
  content: '✓';
  color: var(--cyan);
  font-weight: 700;
}

.buy-note {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-align: center;
  margin: 1rem 0 0;
}


/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 2rem 0;
  margin-top: 2rem;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* Auth / utility pages */
.page-center {
  min-height: calc(100vh - 120px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 1rem;
}

.auth-card {
  width: min(100%, 400px);
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
}

.auth-card h1 {
  font-family: var(--font-display);
  margin: 0 0 1.25rem;
  font-size: 1.5rem;
  text-align: center;
}

.form-group { margin-bottom: 1rem; }

.form-group label {
  display: block;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 0.35rem;
}

.form-group input {
  width: 100%;
  padding: 0.65rem 0.85rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  font-size: 1rem;
}

.form-error {
  color: #ff8a8a;
  font-size: 0.85rem;
  margin-top: 0.75rem;
  display: none;
}

/* Video modal */
.video-modal {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(0, 0, 0, 0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.video-modal-content {
  position: relative;
  width: min(100%, 900px);
  aspect-ratio: 16/9;
  background: #000;
  border-radius: var(--radius);
  overflow: hidden;
}

.video-modal-content iframe { width: 100%; height: 100%; }

.close-modal {
  position: absolute;
  top: -2.5rem;
  right: 0;
  background: none;
  border: none;
  color: white;
  font-size: 2rem;
  cursor: pointer;
}

.nav-toggle { display: none; }

@media (max-width: 1024px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 900px) {
  .hero-grid,
  .video-row { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .nav-links { display: none; }
  .nav-toggle { display: block; background: none; border: none; color: var(--text); }
  .features-grid { grid-template-columns: 1fr; }
  .nav-links.is-open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-elevated);
    padding: 1rem;
    border-bottom: 1px solid var(--border);
  }
}