/* ═══════════════════════════════════════════════════════
   HORNIFIER Landing Page — styles.css
   Mobile-first. Max content width ~1000px.
   Theme: dark workshop + brass-gold accent.
   No external dependencies.
═══════════════════════════════════════════════════════ */

/* ── Reset & Base ─────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  /* Background tones */
  --bg-base:    #1A1A1A;
  --bg-strip:   #141414;
  --bg-card:    #1F1F1F;
  --bg-card-dk: #0D0D0D;

  /* Borders */
  --border-dim:  #333;
  --border-mid:  #444;

  /* Accent — brass gold */
  --gold:        #FFB84D;
  --gold-bright: #FFDD88;
  --gold-muted:  #CCBB88;

  /* Text */
  --text-body:   #d8d2c4;
  --text-dim:    #888;
  --text-inv:    #0D0D0D;

  /* Horn-blue gradient endpoints */
  --blue-dark:   #1A2D3A;
  --blue-mid:    #3A6080;

  /* Typography */
  --font-mono: "Courier New", Courier, "Lucida Console", monospace;
  --font-sans: -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;

  /* Spacing rhythm */
  --sp-xs:  0.5rem;
  --sp-sm:  1rem;
  --sp-md:  2rem;
  --sp-lg:  3.5rem;
  --sp-xl:  6rem;

  /* Radii */
  --r-sm: 4px;
  --r-md: 8px;
  --r-lg: 14px;
}

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--bg-base);
  color: var(--text-body);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

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

/* ── Layout helpers ───────────────────────────────── */
.content-col {
  max-width: 1000px;
  margin: 0 auto;
  padding-left: 1.25rem;
  padding-right: 1.25rem;
}

/* ── Section default spacing ──────────────────────── */
section {
  padding-top: var(--sp-lg);
  padding-bottom: var(--sp-lg);
}

/* Alternating strip bg for visual rhythm */
section:nth-child(even) {
  background-color: var(--bg-strip);
}

/* ── Typography helpers ───────────────────────────── */
.section-title {
  font-family: var(--font-sans);
  font-size: clamp(1.4rem, 3.5vw, 2rem);
  font-weight: 700;
  color: var(--gold-bright);
  letter-spacing: 0.02em;
  margin-bottom: var(--sp-xs);
}

.section-sub {
  color: var(--text-dim);
  font-size: 1.05rem;
  margin-bottom: var(--sp-md);
  max-width: 640px;
}

/* ── Buttons ──────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
  padding: 0.75em 1.75em;
  border-radius: var(--r-md);
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  border: 2px solid transparent;
  transition: background-color 0.18s ease, color 0.18s ease, border-color 0.18s ease, transform 0.12s ease;
  text-decoration: none;
  min-height: 44px; /* touch target */
  white-space: nowrap;
}

.btn:active {
  transform: scale(0.97);
}

.btn-primary {
  background-color: var(--gold);
  color: var(--text-inv);
  border-color: var(--gold);
}
.btn-primary:hover {
  background-color: var(--gold-bright);
  border-color: var(--gold-bright);
}

.btn-secondary {
  background-color: transparent;
  color: var(--gold-muted);
  border-color: var(--border-mid);
}
.btn-secondary:hover {
  border-color: var(--gold);
  color: var(--gold);
}

.cta-price {
  font-variant-numeric: tabular-nums;
}

/* ── HERO ─────────────────────────────────────────── */
#hero {
  background: linear-gradient(160deg, var(--blue-dark) 0%, var(--bg-base) 65%);
  padding-top: var(--sp-xl);
  padding-bottom: var(--sp-xl);
  border-bottom: 1px solid var(--border-dim);
}

.hero-inner {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--sp-md);
}

.hero-brand {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.hero-logo {
  width: 60px;
  height: 60px;
  border-radius: var(--r-md);
  flex-shrink: 0;
}

.wordmark {
  font-family: var(--font-mono);
  font-size: clamp(2.4rem, 8vw, 4.2rem);
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--gold);
  line-height: 1;
  /* CSS-only text reveal: fade up */
  animation: fadeUp 0.55s ease both;
}

.tagline {
  font-family: var(--font-mono);
  font-size: clamp(0.95rem, 2.5vw, 1.2rem);
  color: var(--gold-muted);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  animation: fadeUp 0.55s 0.1s ease both;
}

.hero-sub {
  max-width: 560px;
  color: var(--text-body);
  font-size: 1.05rem;
  animation: fadeUp 0.55s 0.2s ease both;
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  animation: fadeUp 0.55s 0.3s ease both;
}

.hero-screenshot {
  width: 100%;
  margin-top: var(--sp-sm);
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--border-dim);
  box-shadow: 0 24px 64px rgba(0,0,0,0.55);
  animation: fadeUp 0.7s 0.45s ease both;
}

.hero-screenshot img {
  width: 100%;
  border-radius: var(--r-lg);
}

/* ── AUDIO DEMO / AB PLAYER ───────────────────────── */
#audio-demo {
  background-color: var(--bg-card);
  border-top: 1px solid var(--border-dim);
  border-bottom: 1px solid var(--border-dim);
}

.ab-player {
  background-color: var(--bg-card-dk);
  border: 1px solid var(--border-mid);
  border-radius: var(--r-lg);
  padding: var(--sp-md);
  display: flex;
  flex-direction: column;
  gap: var(--sp-sm);
}

.ab-controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
}

.ab-source-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 14px;
  height: 44px;
  border-radius: 6px;
  background-color: var(--blue-dark);
  border: 1.5px solid var(--blue-mid);
  color: #7cb8d8;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  cursor: pointer;
  transition: background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease;
  white-space: nowrap;
}

.ab-source-btn:hover {
  background-color: var(--blue-mid);
  color: var(--text-light);
}

.ab-source-btn.active {
  background-color: var(--blue-mid);
  border-color: var(--gold-muted);
  color: var(--gold-bright);
}

.ab-play {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background-color: var(--gold);
  border: none;
  color: var(--text-inv);
  font-size: 1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color 0.15s ease, transform 0.1s ease;
  flex-shrink: 0;
}

.ab-play:hover {
  background-color: var(--gold-bright);
}

.ab-play:active {
  transform: scale(0.92);
}

.play-icon {
  display: inline-block;
  line-height: 1;
  /* nudge triangle icon visually centred */
  transform: translateX(1px);
}

.ab-track-info {
  color: var(--text-dim);
  font-size: 0.9rem;
  font-family: var(--font-mono);
}

.ab-state {
  letter-spacing: 0.05em;
}

.ab-coming-soon {
  text-align: center;
  padding: var(--sp-md);
  color: var(--text-dim);
  font-size: 0.95rem;
  font-family: var(--font-mono);
  letter-spacing: 0.05em;
}

/* ── WALKTHROUGH ──────────────────────────────────── */
#walkthrough {
  background-color: var(--bg-strip);
}

.walkthrough-figure {
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--border-dim);
  box-shadow: 0 8px 32px rgba(0,0,0,0.4);
}

.walkthrough-figure figcaption {
  padding: var(--sp-sm) var(--sp-md);
  background-color: var(--bg-card-dk);
  color: var(--gold-muted);
  font-size: 0.92rem;
  line-height: 1.55;
  border-top: 1px solid var(--border-dim);
}

.walkthrough-img {
  width: 100%;
}

/* ── FEATURES ─────────────────────────────────────── */
#features {
  background-color: var(--bg-base);
}

.feature-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-sm);
  margin-top: var(--sp-md);
}

@media (min-width: 540px) {
  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 800px) {
  .feature-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.feature-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-dim);
  border-radius: var(--r-lg);
  padding: 1.5rem;
  transition: border-color 0.2s ease, transform 0.15s ease;
}

.feature-card:hover {
  border-color: var(--gold-muted);
  transform: translateY(-2px);
}

.feature-icon {
  font-size: 1.8rem;
  margin-bottom: 0.6rem;
  line-height: 1;
}

.feature-card h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--gold-bright);
  margin-bottom: 0.4rem;
  letter-spacing: 0.01em;
}

.feature-card p {
  font-size: 0.92rem;
  color: var(--text-dim);
  line-height: 1.55;
}

/* ── HOW IT WORKS ─────────────────────────────────── */
#how-it-works {
  background-color: var(--bg-strip);
  border-top: 1px solid var(--border-dim);
  border-bottom: 1px solid var(--border-dim);
}

.hiw-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-md);
  align-items: center;
}

@media (min-width: 700px) {
  .hiw-layout {
    grid-template-columns: 1fr 1fr;
    gap: var(--sp-lg);
  }
}

.hiw-text .section-title {
  margin-bottom: var(--sp-sm);
}

.hiw-text p {
  margin-bottom: 1rem;
  font-size: 0.97rem;
  color: var(--text-body);
}

.hiw-text p em {
  color: var(--gold-muted);
  font-style: normal;
}

.hiw-figure img {
  border-radius: var(--r-md);
  border: 1px solid var(--border-dim);
}

/* ── PRICING ──────────────────────────────────────── */
#pricing {
  background: linear-gradient(160deg, var(--bg-card-dk) 0%, var(--bg-card) 100%);
}

.pricing-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-mid);
  border-radius: var(--r-lg);
  padding: var(--sp-lg) var(--sp-md);
  max-width: 480px;
  margin: 0 auto;
  text-align: center;
  position: relative;
  box-shadow: 0 12px 40px rgba(0,0,0,0.45);
}

.pricing-badge {
  display: inline-block;
  background-color: var(--gold);
  color: var(--text-inv);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.25em 0.85em;
  border-radius: 20px;
  margin-bottom: 1.2rem;
}

.pricing-amount {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 0.75rem;
  margin-bottom: var(--sp-md);
}

.price-current {
  font-family: var(--font-mono);
  font-size: 3.5rem;
  font-weight: 700;
  color: var(--gold);
  line-height: 1;
}

.price-full {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  color: var(--text-dim);
  text-decoration: line-through;
}

.pricing-perks {
  list-style: none;
  text-align: left;
  margin: 0 auto var(--sp-md);
  max-width: 340px;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.pricing-perks li {
  font-size: 0.95rem;
  color: var(--text-body);
  padding-left: 1.5em;
  position: relative;
}

.pricing-perks li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--gold);
  font-weight: 700;
}

.pricing-card .btn-primary {
  width: 100%;
  justify-content: center;
  font-size: 1.05rem;
  padding: 0.9em 1.5em;
}

.pricing-trust {
  margin-top: 1rem;
  font-size: 0.88rem;
  color: var(--text-dim);
}

.lock-icon {
  vertical-align: middle;
  margin-right: 0.25em;
}

.pricing-refund {
  margin-top: 0.5rem;
  font-size: 0.82rem;
  color: var(--text-dim);
}

/* ── SYSTEM REQUIREMENTS ──────────────────────────── */
#system-reqs {
  background-color: var(--bg-base);
}

.reqs-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  border: 1px solid var(--border-dim);
  border-radius: var(--r-md);
  overflow: hidden;
  margin-top: var(--sp-md);
}

.req-item {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 1rem;
  padding: 0.85rem 1.25rem;
  border-bottom: 1px solid var(--border-dim);
  align-items: start;
}

.req-item:last-child {
  border-bottom: none;
}

.req-item:nth-child(even) {
  background-color: var(--bg-card);
}

.req-label {
  font-size: 0.82rem;
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--gold-muted);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding-top: 0.05em;
}

.req-value {
  font-size: 0.95rem;
  color: var(--text-body);
}

/* ── FAQ ──────────────────────────────────────────── */
#faq {
  background-color: var(--bg-strip);
}

.faq-list {
  margin-top: var(--sp-md);
  display: flex;
  flex-direction: column;
  gap: 0;
  border: 1px solid var(--border-dim);
  border-radius: var(--r-md);
  overflow: hidden;
}

.faq-item {
  border-bottom: 1px solid var(--border-dim);
}

.faq-item:last-child {
  border-bottom: none;
}

.faq-question {
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  padding: 1.1rem 1.25rem;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  font-family: var(--font-sans);
  font-size: 0.97rem;
  font-weight: 600;
  color: var(--text-body);
  transition: background-color 0.15s ease, color 0.15s ease;
}

.faq-question:hover {
  background-color: var(--bg-card);
  color: var(--gold-bright);
}

.faq-question[aria-expanded="true"] {
  color: var(--gold);
  background-color: var(--bg-card-dk);
}

.faq-chevron {
  font-size: 1.3rem;
  color: var(--text-dim);
  transition: transform 0.2s ease;
  flex-shrink: 0;
  line-height: 1;
}

.faq-question[aria-expanded="true"] .faq-chevron {
  transform: rotate(90deg);
  color: var(--gold);
}

.faq-answer {
  background-color: var(--bg-card-dk);
  border-top: 1px solid var(--border-dim);
}

.faq-answer p {
  padding: 1rem 1.25rem;
  font-size: 0.93rem;
  color: var(--text-dim);
  line-height: 1.65;
}

/* ── FOOTER CTA ───────────────────────────────────── */
#footer-cta {
  background: linear-gradient(160deg, var(--blue-dark) 0%, var(--bg-card-dk) 100%);
  border-top: 1px solid var(--border-dim);
  text-align: center;
}

.footer-cta-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sp-md);
}

.footer-cta-headline {
  font-family: var(--font-mono);
  font-size: clamp(1.1rem, 3vw, 1.6rem);
  color: var(--gold-muted);
  letter-spacing: 0.04em;
}

.footer-copy {
  font-size: 0.82rem;
  color: var(--text-dim);
  margin-top: var(--sp-xs);
}

/* ── Inline "coming soon" messages (set by JS) ────── */
.inline-notice {
  display: inline-block;
  margin-left: 0.75em;
  font-size: 0.82rem;
  color: var(--gold-muted);
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
  vertical-align: middle;
}

/* ── CSS-only fade-up animation ───────────────────── */
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Reveal sections as they scroll into view (CSS only — intersection not needed) */
/* Fallback: sections always visible without JS */
section {
  opacity: 1;
}

/* ── Focus styles (accessibility) ────────────────── */
:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
}

/* ── Responsive tweaks ────────────────────────────── */
@media (max-width: 480px) {
  .hero-logo {
    width: 48px;
    height: 48px;
  }

  .pricing-card {
    padding: var(--sp-md) var(--sp-sm);
  }

  .req-item {
    grid-template-columns: 110px 1fr;
  }
}