/* =========================================
   SoundFrame — Fan Growth Agent
   Theme: Dark Studio / Stage Energy
   ========================================= */

:root {
  --obsidian: #0C0C0F;
  --obsidian-2: #141418;
  --obsidian-3: #1C1C22;
  --amber: #E8A838;
  --amber-dim: #C4891F;
  --off-white: #F5F0E8;
  --warm-gray: #9E9689;
  --warm-gray-2: #5C5850;
  --surface: #1A1A1F;
  --border: rgba(245, 240, 232, 0.08);
  --font-display: 'Bebas Neue', 'Arial Black', sans-serif;
  --font-body: 'Fraunces', Georgia, serif;
  --font-mono: 'DM Mono', 'Courier New', monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  background: var(--obsidian);
  color: var(--off-white);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* NAV */
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 48px;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  mix-blend-mode: normal;
}

.nav::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--border);
}

.nav__logo {
  font-family: var(--font-display);
  font-size: 22px;
  letter-spacing: 0.08em;
  color: var(--off-white);
}

.nav__tagline {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--warm-gray);
  text-transform: uppercase;
}

/* HERO */
.hero {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  padding: 120px 48px 80px;
  position: relative;
  overflow: hidden;
}

.hero__ambient {
  position: absolute;
  top: -200px;
  right: -200px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(232, 168, 56, 0.12) 0%, transparent 70%);
  pointer-events: none;
}

.hero__eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--amber);
  text-transform: uppercase;
  margin-bottom: 24px;
}

.hero__headline {
  font-family: var(--font-display);
  font-size: clamp(64px, 8vw, 112px);
  line-height: 0.92;
  letter-spacing: 0.01em;
  color: var(--off-white);
  margin-bottom: 32px;
}

.hero__sub {
  font-family: var(--font-body);
  font-size: 18px;
  line-height: 1.65;
  color: var(--warm-gray);
  max-width: 480px;
  font-weight: 300;
}

.hero__visual {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
}

/* SOUNDWAVE */
.soundwave {
  display: flex;
  align-items: center;
  gap: 6px;
  height: 120px;
}

.soundwave__bar {
  width: 4px;
  background: var(--amber);
  border-radius: 4px;
  animation: soundwave 1.2s ease-in-out infinite;
}

.soundwave__bar:nth-child(1)  { height: 20px; animation-delay: 0s; }
.soundwave__bar:nth-child(2)  { height: 45px; animation-delay: 0.1s; }
.soundwave__bar:nth-child(3)  { height: 70px; animation-delay: 0.2s; }
.soundwave__bar:nth-child(4)  { height: 90px; animation-delay: 0.3s; }
.soundwave__bar:nth-child(5)  { height: 110px; animation-delay: 0.4s; }
.soundwave__bar:nth-child(6)  { height: 95px; animation-delay: 0.5s; }
.soundwave__bar:nth-child(7)  { height: 75px; animation-delay: 0.6s; }
.soundwave__bar:nth-child(8)  { height: 50px; animation-delay: 0.7s; }
.soundwave__bar:nth-child(9)  { height: 30px; animation-delay: 0.8s; }
.soundwave__bar:nth-child(10) { height: 65px; animation-delay: 0.9s; }
.soundwave__bar:nth-child(11) { height: 85px; animation-delay: 1.0s; }
.soundwave__bar:nth-child(12) { height: 55px; animation-delay: 1.1s; }
.soundwave__bar:nth-child(13) { height: 25px; animation-delay: 0.15s; }
.soundwave__bar:nth-child(14) { height: 60px; animation-delay: 0.35s; }
.soundwave__bar:nth-child(15) { height: 40px; animation-delay: 0.55s; }

@keyframes soundwave {
  0%, 100% { transform: scaleY(1); opacity: 1; }
  50% { transform: scaleY(0.4); opacity: 0.6; }
}

/* CLOCK SECTION */
.clock-section {
  background: var(--obsidian-2);
  padding: 120px 48px;
  position: relative;
  overflow: hidden;
}

.clock-section::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--amber), transparent);
  opacity: 0.3;
}

.clock-section__inner {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 80px;
  align-items: center;
  max-width: 1100px;
  margin: 0 auto;
}

.clock-visual {
  position: relative;
  width: 200px;
  height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.clock-face {
  width: 180px;
  height: 180px;
  border-radius: 50%;
  border: 1px solid rgba(232, 168, 56, 0.3);
  position: relative;
  background: transparent;
}

.clock-tick {
  position: absolute;
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--warm-gray);
}

.clock-tick--12 { top: 12px; left: 50%; transform: translateX(-50%); }
.clock-tick--3  { right: 14px; top: 50%; transform: translateY(-50%); }
.clock-tick--6  { bottom: 10px; left: 50%; transform: translateX(-50%); }
.clock-tick--9  { left: 14px; top: 50%; transform: translateY(-50%); }

.clock-hand {
  position: absolute;
  bottom: 50%;
  left: 50%;
  transform-origin: bottom center;
  border-radius: 2px;
}

.clock-hand--hour {
  width: 2px;
  height: 50px;
  background: var(--off-white);
  transform: translateX(-50%) rotate(330deg);
}

.clock-hand--minute {
  width: 1.5px;
  height: 70px;
  background: var(--amber);
  transform: translateX(-50%) rotate(0deg);
}

.clock-glow {
  position: absolute;
  inset: -20px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(232, 168, 56, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.clock-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--amber);
  text-transform: uppercase;
  margin-bottom: 20px;
}

.clock-headline {
  font-family: var(--font-display);
  font-size: clamp(32px, 3.5vw, 52px);
  line-height: 1.1;
  letter-spacing: 0.01em;
  color: var(--off-white);
  margin-bottom: 28px;
  max-width: 560px;
}

.clock-body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  color: var(--warm-gray);
  max-width: 520px;
  font-weight: 300;
}

/* FEATURES */
.features {
  padding: 120px 48px;
  max-width: 1200px;
  margin: 0 auto;
}

.features__eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--amber);
  text-transform: uppercase;
  margin-bottom: 16px;
}

.features__heading {
  font-family: var(--font-display);
  font-size: clamp(40px, 5vw, 72px);
  letter-spacing: 0.01em;
  color: var(--off-white);
  margin-bottom: 72px;
  max-width: 600px;
  line-height: 1;
}

.features__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2px;
  background: var(--border);
  border: 1px solid var(--border);
}

.feature-card {
  background: var(--obsidian);
  padding: 48px;
}

.feature-card__icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--amber);
  margin-bottom: 28px;
}

.feature-card__title {
  font-family: var(--font-display);
  font-size: 28px;
  letter-spacing: 0.03em;
  color: var(--off-white);
  margin-bottom: 16px;
}

.feature-card__body {
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.65;
  color: var(--warm-gray);
  font-weight: 300;
}

/* HOW SECTION */
.how {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  padding: 120px 48px;
  background: var(--obsidian-2);
  max-width: 1200px;
  margin: 0 auto;
  align-items: center;
}

.how__eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--amber);
  text-transform: uppercase;
  margin-bottom: 16px;
}

.how__heading {
  font-family: var(--font-display);
  font-size: clamp(36px, 4vw, 60px);
  letter-spacing: 0.01em;
  color: var(--off-white);
  margin-bottom: 24px;
  line-height: 1;
}

.how__body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  color: var(--warm-gray);
  font-weight: 300;
  margin-bottom: 48px;
}

.how__stats {
  display: flex;
  gap: 48px;
}

.stat__number {
  display: block;
  font-family: var(--font-display);
  font-size: 48px;
  color: var(--amber);
  line-height: 1;
  margin-bottom: 8px;
}

.stat__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--warm-gray);
  text-transform: uppercase;
}

/* TERMINAL */
.terminal {
  background: #0A0A0D;
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}

.terminal__bar {
  background: var(--obsidian-3);
  padding: 12px 16px;
  display: flex;
  gap: 8px;
  border-bottom: 1px solid var(--border);
}

.terminal__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--warm-gray-2);
}

.terminal__body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.terminal__line {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--off-white);
  display: flex;
  gap: 8px;
  align-items: flex-start;
}

.terminal__prompt {
  color: var(--amber);
}

.terminal__line--sub {
  color: var(--warm-gray);
  padding-left: 20px;
}

.terminal__line--active {
  color: var(--amber);
  padding-left: 20px;
}

/* CLOSING */
.closing {
  padding: 160px 48px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.closing::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 800px;
  height: 400px;
  background: radial-gradient(ellipse, rgba(232, 168, 56, 0.06) 0%, transparent 60%);
  pointer-events: none;
}

.closing__inner {
  max-width: 760px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.closing__headline {
  font-family: var(--font-display);
  font-size: clamp(36px, 5vw, 80px);
  line-height: 1;
  letter-spacing: 0.01em;
  color: var(--off-white);
  margin-bottom: 32px;
}

.closing__sub {
  font-family: var(--font-body);
  font-size: 18px;
  line-height: 1.7;
  color: var(--warm-gray);
  font-weight: 300;
  margin-bottom: 64px;
  font-style: italic;
}

.closing__pulse {
  position: relative;
  width: 48px;
  height: 48px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
}

.pulse-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--amber);
  position: relative;
  z-index: 1;
}

.pulse-ring {
  position: absolute;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 1px solid var(--amber);
  animation: pulse 2s ease-out infinite;
}

.pulse-ring--delay {
  animation-delay: 1s;
}

@keyframes pulse {
  0% { transform: scale(0.5); opacity: 1; }
  100% { transform: scale(2.5); opacity: 0; }
}

/* FOOTER */
.footer {
  padding: 80px 48px;
  border-top: 1px solid var(--border);
  text-align: center;
}

.footer__brand {
  font-family: var(--font-display);
  font-size: 18px;
  letter-spacing: 0.1em;
  color: var(--off-white);
  margin-bottom: 16px;
}

.footer__desc {
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--warm-gray);
  font-weight: 300;
  font-style: italic;
  margin-bottom: 24px;
}

.footer__meta {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--warm-gray-2);
  text-transform: uppercase;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
}

.footer__sep { opacity: 0.4; }

/* =========================================
   RESPONSIVE
   ========================================= */

@media (max-width: 768px) {
  .nav { padding: 20px 24px; }

  .hero {
    grid-template-columns: 1fr;
    padding: 100px 24px 60px;
    min-height: auto;
  }

  .hero__visual { display: none; }

  .hero__headline { font-size: 56px; }

  .clock-section { padding: 80px 24px; }

  .clock-section__inner {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .clock-visual { margin: 0 auto; }

  .features { padding: 80px 24px; }

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

  .feature-card { padding: 32px 24px; }

  .how {
    grid-template-columns: 1fr;
    padding: 80px 24px;
    gap: 48px;
  }

  .closing { padding: 100px 24px; }

  .closing__headline { font-size: 36px; }
}
@media (max-width: 480px) {
  .how__stats { flex-direction: column; gap: 24px; }
}