/* PhaseHarbor Web Design System — Instrument Grade, Responsive, Zero-Tracker */

:root {
  --bg-primary: #0a0d12;
  --bg-surface: #121721;
  --bg-surface-elevated: #171f2c;
  --border-subtle: #222b3b;
  --border-focus: #38bdf8;
  --text-primary: #f0f6fc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --accent-cyan: #38bdf8;
  --accent-teal: #2dd4bf;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
  --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  color-scheme: dark;
  overflow-x: hidden;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-sans);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  width: 100%;
}

main {
  flex: 1;
}

.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Typography & Focus */
a {
  color: var(--accent-cyan);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: #7dd3fc;
  text-decoration: underline;
}

a:focus-visible, button:focus-visible {
  outline: 2px solid var(--border-focus);
  outline-offset: 4px;
  border-radius: 4px;
}

.mono-code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  color: var(--accent-cyan);
  letter-spacing: 0.04em;
}

/* Accessibility */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Site Header */
.site-header {
  border-bottom: 1px solid var(--border-subtle);
  background-color: rgba(10, 13, 18, 0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 16px 0;
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo-link {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-primary);
}

.logo-link:hover {
  text-decoration: none;
}

.logo-img {
  width: 32px;
  height: 32px;
  display: block;
}

.logo-text {
  font-weight: 700;
  font-size: 1.2rem;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.tm {
  font-size: 0.6em;
  vertical-align: super;
  line-height: 0;
  font-weight: 500;
  color: var(--accent-cyan);
  margin-left: 2px;
}

.desktop-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.desktop-nav a {
  color: var(--text-secondary);
  font-size: 0.92rem;
  font-weight: 500;
}

.desktop-nav a:hover {
  color: var(--text-primary);
  text-decoration: none;
}

/* Mobile Navigation Toggle & Popover */
.nav-toggle-btn {
  display: none !important;
  background: transparent;
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  padding: 8px 10px;
  cursor: pointer;
  color: var(--text-primary);
  transition: background-color var(--transition-fast), border-color var(--transition-fast);
}

.nav-toggle-btn:hover {
  background-color: var(--bg-surface);
  border-color: var(--accent-cyan);
}

.hamburger-box {
  width: 20px;
  height: 14px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.hamburger-bar {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--text-primary);
  border-radius: 2px;
}

.mobile-nav {
  border: 1px solid var(--border-subtle);
  background-color: rgba(14, 19, 28, 0.98);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  color: var(--text-primary);
  padding: 24px;
  border-radius: 16px;
  width: min(340px, calc(100vw - 32px));
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6);
  margin: auto;
}

.mobile-nav:popover-open {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.mobile-nav::backdrop {
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
}

.mobile-nav-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 12px;
}

.mobile-nav-title {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.mobile-nav-close {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
  padding: 0 4px;
}

.mobile-nav-links {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.mobile-nav-links a {
  color: var(--text-primary);
  font-size: 1.05rem;
  font-weight: 500;
  padding: 6px 0;
  border-bottom: 1px solid rgba(34, 43, 59, 0.4);
}

.mobile-nav-links a:last-child {
  border-bottom: none;
}

/* Hero Section (Asymmetric Split) */
.hero-section {
  padding: 80px 0 60px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 48px;
  align-items: center;
}

.tech-pill {
  display: inline-flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  background-color: rgba(56, 189, 248, 0.06);
  border: 1px solid rgba(56, 189, 248, 0.22);
  color: var(--accent-cyan);
  padding: 5px 12px;
  border-radius: 6px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  margin-bottom: 24px;
  max-width: 100%;
}

.tech-divider {
  opacity: 0.4;
}

.hero-title {
  font-size: clamp(1.85rem, 5vw, 3.4rem);
  font-weight: 800;
  letter-spacing: -0.035em;
  line-height: 1.18;
  margin-bottom: 20px;
  color: var(--text-primary);
  overflow-wrap: break-word;
}

.hero-lead {
  font-size: clamp(1.05rem, 1.6vw, 1.2rem);
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 14px;
  max-width: 580px;
}

.hero-sublead {
  font-size: clamp(0.98rem, 1.4vw, 1.1rem);
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 32px;
  max-width: 580px;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 0;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 22px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: all var(--transition-fast);
  cursor: pointer;
  text-decoration: none;
}

.btn-primary {
  background-color: var(--accent-cyan);
  color: #050a10;
  border: 1px solid var(--accent-cyan);
}

.btn-primary:hover {
  background-color: #7dd3fc;
  border-color: #7dd3fc;
  color: #050a10;
  text-decoration: none;
  transform: translateY(-1px);
}

.btn-secondary {
  background-color: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-subtle);
}

.btn-secondary:hover {
  background-color: var(--bg-surface);
  border-color: var(--text-muted);
  text-decoration: none;
  transform: translateY(-1px);
}

/* Telemetry Metric Strip */
.telemetry-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  padding: 16px 18px;
}

.telemetry-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.telemetry-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.telemetry-value {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--accent-teal);
}

/* Procedural Acoustic Console Showcase */
.console-showcase {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
}

.console-frame {
  width: 100%;
  max-width: 440px;
  background: #0e141f;
  border: 2px solid #222e40;
  border-radius: 20px;
  padding: 20px;
  box-shadow: 0 24px 50px rgba(0, 0, 0, 0.65), 0 0 0 1px rgba(56, 189, 248, 0.12);
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.console-topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid rgba(34, 46, 64, 0.8);
  padding-bottom: 12px;
}

.console-brand {
  display: flex;
  align-items: center;
  gap: 8px;
}

.console-logo {
  display: block;
}

.console-title {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent-cyan);
  font-weight: 600;
  letter-spacing: 0.04em;
}

.console-live-badge {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.live-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: var(--accent-teal);
  box-shadow: 0 0 8px var(--accent-teal);
  display: inline-block;
}

.console-screen {
  background-color: #06090e;
  border: 1px solid #1c2738;
  border-radius: 12px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 190px;
  position: relative;
}

.console-wave {
  width: 100%;
  height: 120px;
  display: block;
}

.screen-readout {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent-teal);
  border-top: 1px solid rgba(28, 39, 56, 0.8);
  padding-top: 8px;
  margin-top: 4px;
}

.console-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.console-stat {
  background-color: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  padding: 8px 10px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.stat-lbl {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.stat-num {
  font-family: var(--font-mono);
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text-primary);
}

.console-caption {
  margin-top: 12px;
  font-size: 0.8rem;
  color: var(--text-muted);
  text-align: center;
}

/* Manifesto Section */
.manifesto-section {
  padding: 60px 0;
}

.manifesto-card {
  background: linear-gradient(180deg, var(--bg-surface) 0%, rgba(18, 23, 33, 0.6) 100%);
  border: 1px solid var(--border-subtle);
  border-radius: 16px;
  padding: 40px;
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 40px;
  align-items: flex-start;
}

.section-index {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-cyan);
  margin-bottom: 8px;
}

.manifesto-meta h2 {
  font-size: 1.8rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.25;
  color: var(--text-primary);
}

.manifesto-body {
  display: flex;
  flex-direction: column;
  gap: 16px;
  color: var(--text-secondary);
  font-size: 1.02rem;
  line-height: 1.7;
}

/* Architectural Specifications Grid */
.spec-section {
  padding: 60px 0;
}

.section-header {
  margin-bottom: 36px;
  max-width: 680px;
}

.section-title {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.section-subtitle {
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.6;
}

.spec-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

@media (max-width: 768px) {
  .spec-grid {
    grid-template-columns: 1fr;
  }
}

.spec-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: 14px;
  padding: 30px 26px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: border-color var(--transition-fast), transform var(--transition-fast);
}

.spec-card:hover {
  border-color: rgba(56, 189, 248, 0.35);
  transform: translateY(-2px);
}

.spec-num {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent-cyan);
  letter-spacing: 0.05em;
}

.spec-card h3 {
  font-size: 1.2rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text-primary);
}

.spec-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
  flex: 1;
}

.spec-tech-footer {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
  padding-top: 14px;
  border-top: 1px solid rgba(34, 43, 59, 0.6);
}

.spec-tech-footer code {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.03em;
  background-color: var(--bg-surface-elevated);
  border: 1px solid rgba(56, 189, 248, 0.15);
  color: var(--accent-teal);
  padding: 3px 7px;
  border-radius: 4px;
}

/* Spec Grid 3-Column Variant */
.spec-grid-tri {
  grid-template-columns: repeat(3, 1fr);
}

@media (max-width: 900px) {
  .spec-grid-tri {
    grid-template-columns: 1fr;
  }
}

/* Early Access Section */
.early-access-section {
  padding: 20px 0 60px;
}

.early-access-card {
  background: linear-gradient(135deg, rgba(18, 23, 33, 0.95) 0%, rgba(14, 25, 38, 0.8) 100%);
  border: 1px solid rgba(56, 189, 248, 0.22);
  border-radius: 16px;
  padding: 36px 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 36px;
  flex-wrap: wrap;
}

.early-access-content {
  flex: 1;
  min-width: 280px;
}

.early-access-content h3 {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.early-access-content p {
  color: var(--text-secondary);
  font-size: 0.98rem;
  line-height: 1.6;
  max-width: 580px;
}

.early-access-action {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
}

.early-access-note {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--text-muted);
}

/* Notice & Disclaimer */
.notice-section {
  padding: 10px 0 60px;
}

.disclaimer-card {
  background-color: rgba(18, 23, 33, 0.5);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  padding: 20px 24px;
  text-align: center;
}

.disclaimer-text {
  font-size: 0.86rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.disclaimer-text strong {
  color: var(--text-secondary);
}

/* Legal Page Content Styles */
.legal-main {
  padding: 60px 0 80px;
}

.legal-content {
  max-width: 800px;
  margin: 0 auto;
}

.desktop-nav a.active-nav {
  color: var(--accent-cyan);
  font-weight: 600;
}

.legal-header {
  margin-bottom: 32px;
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 24px;
}

.legal-title {
  font-size: clamp(2rem, 4vw, 2.6rem);
  font-weight: 800;
  letter-spacing: -0.025em;
  margin-top: 16px;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.legal-meta {
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.84rem;
}

.legal-summary-card {
  background-color: var(--bg-surface);
  border: 1px solid rgba(56, 189, 248, 0.25);
  border-left: 4px solid var(--accent-cyan);
  border-radius: 12px;
  padding: 24px 28px;
  margin-bottom: 32px;
}

.summary-badge {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent-cyan);
  font-weight: 700;
  margin-bottom: 8px;
}

.legal-summary-card p {
  color: var(--text-primary);
  font-size: 0.98rem;
  line-height: 1.65;
}

.legal-spec-box {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: 14px;
  padding: 26px 28px;
  margin-bottom: 36px;
}

.spec-table-title {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.meta-dl {
  display: flex;
  flex-direction: column;
  gap: 12px;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  padding: 18px 20px;
}

.meta-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.9rem;
  border-bottom: 1px solid rgba(34, 43, 59, 0.5);
  padding-bottom: 8px;
  gap: 16px;
}

.meta-row:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.meta-row dt {
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  flex-shrink: 0;
}

.meta-row dd {
  color: var(--text-primary);
  font-weight: 500;
  text-align: right;
}

@media (max-width: 640px) {
  .meta-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }

  .meta-row dd {
    text-align: left;
  }
}

.legal-body {
  color: var(--text-secondary);
  display: flex;
  flex-direction: column;
  gap: 32px;
  line-height: 1.7;
}

.legal-section {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding-top: 24px;
  border-top: 1px solid rgba(34, 43, 59, 0.6);
}

.legal-section:first-child {
  border-top: none;
  padding-top: 0;
}

.legal-section h2 {
  color: var(--text-primary);
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.015em;
  margin-top: 0;
}

.legal-body ul, .legal-body ol {
  padding-left: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.legal-body code {
  background-color: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.88em;
  color: var(--accent-cyan);
}

/* Site Footer */
.site-footer {
  border-top: 1px solid var(--border-subtle);
  padding: 40px 0;
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-top: auto;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.trademark {
  font-size: 0.82rem;
  color: var(--text-muted);
}

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-links a {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.footer-links a:hover {
  color: var(--text-primary);
  text-decoration: none;
}

/* Responsive Media Queries */
@media (max-width: 900px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }

  .hero-lead {
    margin: 0 auto 32px;
  }

  .hero-actions {
    justify-content: center;
  }

  .telemetry-bar {
    grid-template-columns: repeat(2, 1fr);
    text-align: left;
  }

  .manifesto-card {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 30px 24px;
  }

  .early-access-card {
    padding: 28px 24px;
    gap: 24px;
  }
}

@media (max-width: 680px) {
  .container {
    padding: 0 16px;
  }

  .desktop-nav {
    display: none !important;
  }

  .nav-toggle-btn {
    display: flex !important;
  }

  .hero-section {
    padding: 50px 0 40px;
  }

  .telemetry-bar {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .early-access-action {
    width: 100%;
  }

  .early-access-action .btn {
    width: 100%;
  }

  .console-frame {
    padding: 16px;
  }

  .screen-readout {
    font-size: 0.64rem;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .footer-links {
    flex-wrap: wrap;
    gap: 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}