/* ============================================
   SAVETHEUSA.PARTY — STYLESHEET
   Brand: Diagnostic Instrument + Warning System + Repair Manual
   ============================================ */

/* --- DESIGN TOKENS --- */
:root {
  --blue-deep:    #0B1F33;
  --blue-mid:     #112840;
  --steel:        #2F3E46;
  --steel-light:  #3d5059;
  --red-signal:   #C1121F;
  --red-dark:     #8B0D16;
  --white-cold:   #F8F9FA;
  --white-dim:    #B8C0C8;
  --teal:         #2EC4B6;
  --teal-dark:    #1a8f85;
  --amber:        #F77F00;
  --near-black:   #0A0A0A;
  --border:       rgba(248, 249, 250, 0.08);
  --border-strong:rgba(248, 249, 250, 0.16);

  --font-display: 'DM Serif Display', Georgia, serif;
  --font-body:    'IBM Plex Sans', 'Helvetica Neue', sans-serif;
  --font-mono:    'IBM Plex Mono', 'Courier New', monospace;

  --max-w:        1200px;
  --nav-h:        64px;
  --radius:       4px;
  --radius-lg:    8px;

  --ease-out:     cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out:  cubic-bezier(0.45, 0, 0.55, 1);
}

/* --- RESET & BASE --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background: var(--near-black);
  color: var(--white-cold);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; border: none; background: none; font: inherit; }
ul { list-style: none; }

/* --- UTILITY --- */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 clamp(20px, 5vw, 64px);
}

.section-label {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--teal);
  text-transform: uppercase;
  margin-bottom: 16px;
}

.section-header {
  margin-bottom: 56px;
}

.section-header h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.15;
  color: var(--white-cold);
  margin-bottom: 16px;
}

.section-sub {
  font-size: 1.1rem;
  color: var(--white-dim);
  max-width: 520px;
  font-weight: 300;
}

/* --- BUTTONS --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-radius: var(--radius);
  transition: all 0.2s var(--ease-out);
  cursor: pointer;
  white-space: nowrap;
}

.btn-primary {
  background: var(--teal);
  color: var(--near-black);
  border: 2px solid var(--teal);
}
.btn-primary:hover {
  background: var(--teal-dark);
  border-color: var(--teal-dark);
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(46, 196, 182, 0.25);
}

.btn-ghost {
  background: transparent;
  color: var(--white-cold);
  border: 2px solid var(--border-strong);
}
.btn-ghost:hover {
  border-color: var(--white-cold);
  background: rgba(248, 249, 250, 0.06);
}

.btn-outline {
  background: transparent;
  color: var(--teal);
  border: 2px solid var(--teal);
}
.btn-outline:hover {
  background: rgba(46, 196, 182, 0.08);
}

.btn-full { width: 100%; justify-content: center; }

/* ============================================
   NAVIGATION
   ============================================ */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--nav-h);
  background: rgba(10, 10, 10, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: background 0.3s ease;
}

.nav.scrolled {
  background: rgba(10, 10, 10, 0.96);
  border-bottom-color: var(--border-strong);
}

.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 clamp(20px, 5vw, 64px);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--white-cold);
  white-space: nowrap;
}

.nav-logo-mark {
  color: var(--teal);
  font-size: 16px;
  line-height: 1;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-links a {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--white-dim);
  padding: 6px 12px;
  border-radius: var(--radius);
  transition: color 0.15s ease;
}

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

.nav-links .nav-cta {
  background: var(--teal);
  color: var(--near-black);
  font-weight: 600;
  padding: 7px 16px;
}
.nav-links .nav-cta:hover {
  background: var(--teal-dark);
  color: var(--near-black);
}

.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}
.nav-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--white-cold);
  border-radius: 2px;
  transition: all 0.25s ease;
}

/* Mobile menu */
.mobile-menu {
  position: fixed;
  top: var(--nav-h);
  left: 0; right: 0;
  background: var(--near-black);
  border-bottom: 1px solid var(--border);
  padding: 16px 0 24px;
  z-index: 99;
  transform: translateY(-110%);
  transition: transform 0.3s var(--ease-out);
}
.mobile-menu.open { transform: translateY(0); }
.mobile-menu ul { padding: 0 24px; }
.mobile-menu li { border-bottom: 1px solid var(--border); }
.mobile-menu a {
  display: block;
  padding: 14px 0;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--white-dim);
}
.mobile-menu a:hover { color: var(--white-cold); }

/* ============================================
   HERO
   ============================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  background: var(--blue-deep);
  overflow: hidden;
  padding-top: var(--nav-h);
}

.hero-grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(46, 196, 182, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(46, 196, 182, 0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 40%, transparent 100%);
}

.hero-noise {
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.03'/%3E%3C/svg%3E");
  pointer-events: none;
  opacity: 0.4;
}

.hero-inner {
  position: relative;
  z-index: 2;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 80px clamp(20px, 5vw, 64px) 60px;
}

.hero-status-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 40px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--white-dim);
  opacity: 0;
  animation: fadeSlideIn 0.8s var(--ease-out) 0.2s forwards;
}

.status-dot {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

.status-critical {
  background: var(--red-signal);
  box-shadow: 0 0 8px var(--red-signal);
  animation: statusPulse 1.5s ease-in-out infinite;
}

.status-label { color: var(--red-signal); }

.status-timestamp {
  margin-left: auto;
  color: var(--white-dim);
  opacity: 0.6;
}

.hero-headline {
  font-family: var(--font-display);
  font-size: clamp(3rem, 7vw, 6.5rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin-bottom: 28px;
  max-width: 820px;
}

.hero-headline .line {
  display: block;
  opacity: 0;
  transform: translateY(24px);
}
.hero-headline .line-1 { animation: fadeSlideIn 0.8s var(--ease-out) 0.4s forwards; }
.hero-headline .line-2 { animation: fadeSlideIn 0.8s var(--ease-out) 0.55s forwards; }
.hero-headline .line-3 { animation: fadeSlideIn 0.8s var(--ease-out) 0.7s forwards; }

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

.hero-sub {
  font-size: clamp(1rem, 1.8vw, 1.2rem);
  font-weight: 300;
  color: var(--white-dim);
  max-width: 560px;
  line-height: 1.7;
  margin-bottom: 40px;
  opacity: 0;
  animation: fadeSlideIn 0.8s var(--ease-out) 0.85s forwards;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 72px;
  opacity: 0;
  animation: fadeSlideIn 0.8s var(--ease-out) 1s forwards;
}

.hero-metrics {
  display: flex;
  align-items: center;
  gap: 0;
  border-top: 1px solid var(--border);
  padding-top: 32px;
  opacity: 0;
  animation: fadeSlideIn 0.8s var(--ease-out) 1.15s forwards;
}

.metric {
  padding: 0 40px 0 0;
}
.metric:first-child { padding-left: 0; }

.metric-value {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(2rem, 3vw, 2.8rem);
  font-weight: 600;
  color: var(--white-cold);
  line-height: 1;
  margin-bottom: 6px;
}

.metric-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--white-dim);
}

.metric-divider {
  width: 1px;
  height: 48px;
  background: var(--border-strong);
  margin-right: 40px;
  flex-shrink: 0;
}

.hero-scroll-hint {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--white-dim);
  opacity: 0.5;
  animation: fadeIn 1s ease 2s forwards;
  z-index: 2;
}

.scroll-arrow {
  animation: bounceDown 2s ease-in-out infinite;
}

/* ============================================
   IDENTITY SECTION
   ============================================ */
.identity {
  background: var(--steel);
  padding: 100px 0;
}

.identity-label {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--teal);
  text-transform: uppercase;
  margin-bottom: 48px;
}

.identity-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

.identity-main h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  line-height: 1.2;
  margin-bottom: 24px;
}

.identity-main p {
  font-size: 1.05rem;
  font-weight: 300;
  color: var(--white-dim);
  line-height: 1.75;
}

.identity-main strong {
  color: var(--white-cold);
  font-weight: 500;
}

.identity-pillars {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.pillar {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  padding: 24px 28px;
  background: rgba(11, 31, 51, 0.5);
  border-left: 3px solid transparent;
  transition: all 0.2s ease;
}

.pillar:hover {
  background: rgba(11, 31, 51, 0.8);
}

.pillar-diagnostic { border-left-color: var(--teal); }
.pillar-warning    { border-left-color: var(--amber); }
.pillar-repair     { border-left-color: var(--teal); }

.pillar-icon {
  font-size: 20px;
  color: var(--teal);
  flex-shrink: 0;
  margin-top: 2px;
  line-height: 1;
}

.pillar-warning .pillar-icon { color: var(--amber); }

.pillar-title {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--white-cold);
  margin-bottom: 6px;
  line-height: 1.3;
}

.pillar-desc {
  font-size: 0.9rem;
  color: var(--white-dim);
  font-weight: 300;
}

/* ============================================
   FRAMEWORK SECTION
   ============================================ */
.framework {
  background: var(--blue-deep);
  padding: 100px 0;
}

.framework-steps {
  display: flex;
  align-items: stretch;
  gap: 0;
  overflow-x: auto;
  padding-bottom: 8px;
}

.fw-arrow {
  display: flex;
  align-items: center;
  padding: 0 12px;
  font-size: 22px;
  color: var(--border-strong);
  flex-shrink: 0;
  margin-top: -20px;
}

.fw-arrow-last { color: var(--teal); opacity: 0.5; }

.fw-step {
  flex: 1;
  min-width: 160px;
  padding: 32px 28px;
  background: var(--blue-mid);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: all 0.25s ease;
  position: relative;
}

.fw-step:hover {
  border-color: var(--border-strong);
  transform: translateY(-2px);
}

.fw-step-fix {
  border-color: rgba(46, 196, 182, 0.2);
  background: rgba(46, 196, 182, 0.04);
}
.fw-step-fix:hover { border-color: rgba(46, 196, 182, 0.4); }

.fw-step-resist {
  border-color: rgba(193, 18, 31, 0.2);
  background: rgba(193, 18, 31, 0.04);
}
.fw-step-resist:hover { border-color: rgba(193, 18, 31, 0.4); }

.fw-step-num {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.15em;
  color: var(--white-dim);
  opacity: 0.4;
  margin-bottom: 16px;
}

.fw-step h3 {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 600;
  color: var(--white-cold);
  margin-bottom: 10px;
}

.fw-step-fix h3 { color: var(--teal); }
.fw-step-resist h3 { color: var(--red-signal); }

.fw-step p {
  font-size: 0.875rem;
  color: var(--white-dim);
  font-weight: 300;
  line-height: 1.6;
}

/* ============================================
   DIAGNOSTICS FEED
   ============================================ */
.diagnostics-feed {
  background: var(--steel);
  padding: 100px 0;
}

.diagnostics-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  margin-bottom: 48px;
}

.diag-card {
  background: var(--blue-mid);
  padding: 32px;
  border-top: 3px solid transparent;
  transition: all 0.25s ease;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.diag-card:hover {
  background: rgba(17, 40, 64, 0.9);
  transform: translateY(-2px);
}

.diag-critical { border-top-color: var(--red-signal); }
.diag-warning  { border-top-color: var(--amber); }
.diag-fix      { border-top-color: var(--teal); }

.diag-severity {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.15em;
}

.severity-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.severity-critical {
  background: var(--red-signal);
  box-shadow: 0 0 6px var(--red-signal);
  animation: statusPulse 2s ease-in-out infinite;
}

.severity-warning {
  background: var(--amber);
  box-shadow: 0 0 6px var(--amber);
}

.severity-fix {
  background: var(--teal);
  box-shadow: 0 0 6px var(--teal);
}

.diag-severity span:last-child {
  color: var(--white-dim);
}

.diag-card .diag-severity .severity-dot ~ span {
  color: var(--white-dim);
}

.diag-critical .diag-severity { color: var(--red-signal); }
.diag-warning  .diag-severity { color: var(--amber); }
.diag-fix      .diag-severity { color: var(--teal); }

.diag-system {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--white-dim);
  opacity: 0.6;
}

.diag-card h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  line-height: 1.3;
  color: var(--white-cold);
}

.diag-mechanism {
  font-size: 0.875rem;
  color: var(--white-dim);
  font-weight: 300;
  line-height: 1.65;
  flex-grow: 1;
}

.diag-chain {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 4px;
  margin-top: auto;
  padding-top: 8px;
  border-top: 1px solid var(--border);
}

.chain-node {
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.08em;
  padding: 3px 7px;
  border-radius: 2px;
  text-transform: uppercase;
}

.chain-policy     { background: rgba(47, 62, 70, 0.8); color: var(--white-dim); }
.chain-mechanism  { background: rgba(11, 31, 51, 0.8); color: var(--white-dim); }
.chain-outcome    { background: rgba(193, 18, 31, 0.15); color: var(--red-signal); }
.chain-consequence{ background: rgba(193, 18, 31, 0.25); color: var(--red-signal); }

.diag-fix .chain-outcome,
.diag-fix .chain-consequence {
  background: rgba(46, 196, 182, 0.15);
  color: var(--teal);
}

.chain-arrow {
  font-size: 11px;
  color: var(--white-dim);
  opacity: 0.4;
}

.diag-link {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--teal);
  transition: gap 0.15s ease;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 4px;
}

.diag-link:hover { color: var(--white-cold); }

.diagnostics-cta { text-align: center; }

/* ============================================
   VOICE DEMO SECTION
   ============================================ */
.voice-demo {
  background: var(--blue-deep);
  padding: 100px 0;
}

.voice-comparison {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px;
  margin-bottom: 64px;
}

.voice-bad,
.voice-good {
  padding: 36px 40px;
}

.voice-bad {
  background: rgba(193, 18, 31, 0.06);
  border: 1px solid rgba(193, 18, 31, 0.15);
}

.voice-good {
  background: rgba(46, 196, 182, 0.04);
  border: 1px solid rgba(46, 196, 182, 0.15);
}

.voice-label {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 20px;
}

.voice-label-bad  { color: var(--red-signal); }
.voice-label-good { color: var(--teal); }

.voice-bad p,
.voice-good p {
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 2vw, 1.4rem);
  line-height: 1.5;
  font-style: italic;
}

.voice-bad p  { color: rgba(248, 249, 250, 0.5); }
.voice-good p { color: var(--white-cold); }

/* Tone spectrum */
.tone-spectrum {
  background: var(--blue-mid);
  border: 1px solid var(--border);
  padding: 40px 48px;
  border-radius: var(--radius);
}

.tone-label {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--white-dim);
  margin-bottom: 32px;
}

.tone-bars {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.tone-bar {
  display: flex;
  align-items: center;
  gap: 20px;
}

.tone-name {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--white-dim);
  width: 140px;
  flex-shrink: 0;
}

.tone-track {
  flex: 1;
  height: 4px;
  background: rgba(248, 249, 250, 0.08);
  border-radius: 2px;
  overflow: hidden;
}

.tone-fill {
  height: 100%;
  background: var(--red-signal);
  border-radius: 2px;
  width: 0;
  transition: width 1.2s var(--ease-out);
}

.tone-fill-teal  { background: var(--teal); }
.tone-fill-amber { background: var(--amber); }

.tone-level {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--white-dim);
  width: 80px;
  text-align: right;
  flex-shrink: 0;
}

/* ============================================
   SUBSCRIBE SECTION
   ============================================ */
.subscribe {
  background: var(--steel);
  padding: 100px 0;
}

.subscribe-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

.subscribe-copy h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 3.5vw, 2.8rem);
  line-height: 1.15;
  margin-bottom: 20px;
}

.subscribe-copy > p {
  font-size: 1.05rem;
  color: var(--white-dim);
  font-weight: 300;
  margin-bottom: 32px;
  line-height: 1.7;
}

.subscribe-features {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.subscribe-features li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.95rem;
  color: var(--white-dim);
}

.feat-icon {
  color: var(--teal);
  font-size: 14px;
  flex-shrink: 0;
}

.subscribe-form-wrap {
  background: var(--blue-mid);
  border: 1px solid var(--border);
  padding: 40px;
  border-radius: var(--radius-lg);
}

.subscribe-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-field label {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--white-dim);
}

.form-field input,
.form-field select {
  background: rgba(11, 31, 51, 0.6);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  padding: 12px 16px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--white-cold);
  outline: none;
  transition: border-color 0.2s ease;
  -webkit-appearance: none;
  appearance: none;
}

.form-field input::placeholder { color: rgba(184, 192, 200, 0.4); }

.form-field input:focus,
.form-field select:focus {
  border-color: var(--teal);
  box-shadow: 0 0 0 3px rgba(46, 196, 182, 0.1);
}

.form-field select {
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1L6 6L11 1' stroke='%23B8C0C8' stroke-width='1.5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
}

.form-field select option {
  background: var(--blue-deep);
  color: var(--white-cold);
}

.form-note {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--white-dim);
  opacity: 0.5;
  text-align: center;
}

.subscribe-success {
  text-align: center;
  padding: 48px 24px;
}

.success-icon {
  font-size: 3rem;
  color: var(--teal);
  margin-bottom: 16px;
}

.subscribe-success p {
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.1em;
  color: var(--teal);
}

/* ============================================
   TAGLINE BANNER
   ============================================ */
.tagline-banner {
  background: var(--near-black);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  overflow: hidden;
  padding: 18px 0;
}

.tagline-track {
  display: flex;
  align-items: center;
  gap: 40px;
  white-space: nowrap;
  animation: marquee 40s linear infinite;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--white-dim);
}

.tag-sep { color: var(--teal); font-size: 8px; }

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background: var(--near-black);
  padding: 64px 0 32px;
  border-top: 1px solid var(--border);
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 80px;
  margin-bottom: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--border);
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--white-cold);
  margin-bottom: 16px;
}

.footer-tagline {
  font-size: 0.875rem;
  color: var(--white-dim);
  font-weight: 300;
  line-height: 1.7;
  max-width: 360px;
}

.footer-links {
  display: flex;
  gap: 48px;
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col-title {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--white-dim);
  margin-bottom: 4px;
}

.footer-col a {
  font-size: 0.875rem;
  color: rgba(184, 192, 200, 0.6);
  transition: color 0.15s ease;
}
.footer-col a:hover { color: var(--white-cold); }

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.footer-copy {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--white-dim);
  opacity: 0.4;
  letter-spacing: 0.05em;
}

.footer-status {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--white-dim);
  opacity: 0.4;
}

/* ============================================
   ANIMATIONS
   ============================================ */
@keyframes fadeSlideIn {
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  to { opacity: 0.5; }
}

@keyframes bounceDown {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(6px); }
}

@keyframes statusPulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 8px currentColor; }
  50%       { opacity: 0.5; box-shadow: 0 0 16px currentColor; }
}

@keyframes marquee {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* Scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
  .diagnostics-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-hamburger { display: flex; }

  .hero-metrics {
    flex-wrap: wrap;
    gap: 24px;
  }

  .metric-divider { display: none; }

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

  .voice-comparison {
    grid-template-columns: 1fr;
  }

  .subscribe-inner {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .footer-links {
    gap: 32px;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .framework-steps {
    flex-direction: column;
    overflow-x: visible;
  }

  .fw-arrow {
    transform: rotate(90deg);
    padding: 8px 0;
    justify-content: center;
  }

  .tone-bar {
    flex-wrap: wrap;
  }

  .tone-name { width: 100%; margin-bottom: -8px; }
  .tone-track { flex-basis: calc(100% - 90px); }

  .tone-spectrum { padding: 28px 24px; }

  .subscribe-form-wrap { padding: 28px 24px; }
}

@media (max-width: 480px) {
  .hero-actions {
    flex-direction: column;
  }

  .hero-metrics { gap: 20px; }

  .diag-chain { display: none; }
}