:root {
  --bg-0: #040709;
  --bg-1: #0a1013;
  --bg-2: #111a1f;
  --bg-3: #142229;
  --text-0: #eff6f8;
  --text-1: rgba(239, 246, 248, 0.82);
  --text-2: rgba(239, 246, 248, 0.58);
  --line: rgba(45, 212, 191, 0.22);
  --line-soft: rgba(45, 212, 191, 0.12);
  --accent: #2dd4bf;
  --accent-deep: #1ea392;
  --radius-lg: 1.25rem;
  --radius-md: 0.875rem;
  --container: 70rem;
  --hero-shift: 0px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg-0);
  color: var(--text-0);
  font-family: "Manrope", sans-serif;
  min-height: 100vh;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 200;
  background: #fff;
  color: #000;
  padding: 0.5rem 0.75rem;
}

.skip-link:focus {
  left: 0.5rem;
  top: 0.5rem;
}

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

.container {
  width: min(var(--container), calc(100% - 2.5rem));
  margin: 0 auto;
  padding-left: env(safe-area-inset-left, 0px);
  padding-right: env(safe-area-inset-right, 0px);
}

.section {
  position: relative;
  padding: clamp(4.25rem, 9vw, 7rem) 0;
  border-top: 1px solid var(--line-soft);
}

.section-dark {
  background:
    radial-gradient(120% 160% at 50% -10%, rgba(45, 212, 191, 0.06), transparent 55%),
    linear-gradient(180deg, var(--bg-1) 0%, var(--bg-0) 100%);
}

.section-panel {
  background:
    radial-gradient(100% 120% at 90% 0%, rgba(45, 212, 191, 0.08), transparent 48%),
    linear-gradient(180deg, var(--bg-2) 0%, var(--bg-1) 100%);
}

.kicker {
  margin: 0 0 1rem;
  font-size: 0.74rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 700;
}

.section-title {
  margin: 0;
  max-width: 18ch;
  font-family: "Syne", sans-serif;
  font-size: clamp(2rem, 5.5vw, 4rem);
  line-height: 1.06;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

.section-copy {
  margin: 1.15rem 0 0;
  max-width: 44rem;
  color: var(--text-1);
  font-size: clamp(1rem, 2.6vw, 1.2rem);
  line-height: 1.72;
}

a {
  color: var(--accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}

a:hover {
  color: #67e9d7;
}

.hero {
  min-height: 100svh;
  display: flex;
  align-items: center;
  border-top: 0;
  background:
    linear-gradient(180deg, rgba(4, 7, 9, 0.84) 0%, rgba(4, 7, 9, 0.98) 100%),
    radial-gradient(circle at 20% 0%, rgba(45, 212, 191, 0.1) 0%, transparent 38%),
    radial-gradient(circle at 90% 10%, rgba(45, 212, 191, 0.06) 0%, transparent 42%),
    var(--bg-0);
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(45, 212, 191, 0.08) 0.5px, transparent 0.5px);
  background-size: 4px 4px;
  opacity: 0.12;
  pointer-events: none;
}

.hero-glow {
  position: absolute;
  inset: auto auto 14% 50%;
  width: min(86vw, 52rem);
  height: min(86vw, 52rem);
  border-radius: 50%;
  transform: translate(-50%, calc(-8% + var(--hero-shift)));
  background: radial-gradient(circle, rgba(45, 212, 191, 0.2) 0%, rgba(45, 212, 191, 0.08) 35%, transparent 70%);
  filter: blur(44px);
  opacity: 0.7;
  pointer-events: none;
}

.hero-grid {
  position: relative;
  z-index: 2;
  display: grid;
  gap: 1.2rem;
  max-width: 58rem;
}

.hero-title {
  margin: 0;
  font-family: "Syne", sans-serif;
  font-size: clamp(2.2rem, 7vw, 5.6rem);
  line-height: 0.95;
  letter-spacing: -0.03em;
  text-wrap: balance;
}

.hero-subtitle {
  margin: 0;
  max-width: 42rem;
  color: var(--text-1);
  font-size: clamp(1.04rem, 2.5vw, 1.28rem);
  line-height: 1.6;
}

.hero-line {
  margin: 0;
  color: var(--text-2);
  font-size: 0.95rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.capture-form {
  margin-top: 0.35rem;
  width: min(42rem, 100%);
}

.capture-form-inline {
  width: min(38rem, 100%);
  margin-top: 1.1rem;
}

.form-row {
  display: flex;
  gap: 0.65rem;
  align-items: stretch;
}

.capture-form input[type="email"] {
  flex: 1;
  min-width: 0;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: var(--radius-md);
  background: rgba(10, 16, 19, 0.85);
  color: var(--text-0);
  font-family: "Manrope", sans-serif;
  font-size: 1rem;
  padding: 0.92rem 0.98rem;
  transition: border-color 220ms ease, box-shadow 220ms ease;
}

.capture-form input::placeholder {
  color: rgba(239, 246, 248, 0.56);
}

.capture-form input:focus-visible {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(45, 212, 191, 0.2);
}

.capture-form button {
  border: 0;
  border-radius: var(--radius-md);
  padding: 0.92rem 1.3rem;
  min-height: 3rem;
  min-width: 9.5rem;
  font-family: "Manrope", sans-serif;
  font-size: 0.98rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: #052523;
  background: var(--accent);
  cursor: pointer;
  transition: transform 220ms ease, background-color 220ms ease, box-shadow 220ms ease;
}

.capture-form button:hover {
  background: #50e2cf;
  box-shadow: 0 12px 30px rgba(45, 212, 191, 0.2);
  transform: translateY(-1px);
}

.capture-form button:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px rgba(45, 212, 191, 0.3);
}

.form-note,
.form-status {
  margin: 0.58rem 0 0;
  color: var(--text-2);
  font-size: 0.85rem;
  line-height: 1.45;
}

.form-status {
  min-height: 1.25rem;
}

.capture-form button:disabled {
  opacity: 0.7;
  cursor: not-allowed;
  transform: none;
}

.capture-form button:disabled:hover {
  transform: none;
  box-shadow: none;
}

.movement-grid {
  margin-top: 2rem;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.movement-card {
  padding: 1.35rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: linear-gradient(145deg, rgba(20, 34, 41, 0.92) 0%, rgba(10, 16, 19, 0.85) 100%);
}

.movement-index {
  margin: 0;
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  color: var(--accent);
  font-weight: 700;
}

.movement-card h3 {
  margin: 0.68rem 0 0;
  font-family: "Syne", sans-serif;
  font-size: 1.35rem;
  letter-spacing: -0.01em;
}

.movement-card p {
  margin: 0.6rem 0 0;
  color: var(--text-1);
  line-height: 1.65;
}

.mid-capture {
  margin-top: 2.3rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: clamp(1.3rem, 2.4vw, 1.8rem);
  background: rgba(8, 17, 21, 0.78);
}

.mid-capture h3 {
  margin: 0;
  font-family: "Syne", sans-serif;
  font-size: clamp(1.4rem, 3.4vw, 2rem);
  letter-spacing: -0.01em;
}

.mid-capture p {
  margin: 0.5rem 0 0;
  color: var(--text-1);
}

.signal-stack {
  margin-top: 1.7rem;
  display: grid;
  gap: 0.78rem;
}

.signal-item {
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: rgba(20, 34, 41, 0.55);
  padding: 1rem 1.1rem;
}

.signal-item h3 {
  margin: 0;
  font-family: "Syne", sans-serif;
  font-size: 1.2rem;
  letter-spacing: -0.01em;
}

.signal-item p {
  margin: 0.3rem 0 0;
  color: var(--text-1);
  line-height: 1.55;
}

.signal-item-book {
  border-color: var(--accent);
  background: rgba(20, 42, 41, 0.65);
}

.signal-item-anchor {
  border-color: rgba(45, 212, 191, 0.55);
  background: rgba(20, 38, 41, 0.55);
}

.signal-link {
  display: inline-block;
  margin-top: 0.55rem;
  color: var(--accent);
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  transition: color 0.2s;
}
.signal-link:hover {
  color: var(--text-0);
}

.badge-live {
  display: inline-block;
  margin-left: 0.5rem;
  padding: 0.15rem 0.55rem;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--bg-0);
  background: var(--accent);
  border-radius: 2rem;
  vertical-align: middle;
}

.book-cta {
  display: block;
  max-width: 28rem;
  margin: 1.5rem auto 0;
  padding: 1rem 1.3rem;
  border: 1px solid var(--accent);
  border-radius: var(--radius-md);
  background: rgba(45, 212, 191, 0.06);
  text-decoration: none;
  text-align: center;
  transition: background 0.25s, border-color 0.25s;
}
.book-cta:hover {
  background: rgba(45, 212, 191, 0.12);
  border-color: var(--text-0);
}

.book-cta-badge {
  display: block;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 0.25rem;
}

.book-cta-title {
  display: block;
  font-family: "Syne", sans-serif;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-0);
}

.book-cta-action {
  display: block;
  margin-top: 0.35rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--accent);
}

.origin-grid {
  margin-top: 1.9rem;
  display: grid;
  gap: 0.9rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.origin-stat {
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: rgba(8, 16, 19, 0.72);
  padding: 1.05rem;
}

.origin-number {
  margin: 0;
  font-family: "Syne", sans-serif;
  font-size: clamp(1.9rem, 4.7vw, 2.7rem);
  line-height: 1;
  color: var(--accent);
}

.origin-label {
  margin: 0.45rem 0 0;
  color: var(--text-1);
  letter-spacing: 0.03em;
  text-transform: uppercase;
  font-size: 0.76rem;
}

.final-cta {
  background:
    radial-gradient(120% 120% at 50% -10%, rgba(45, 212, 191, 0.15), transparent 58%),
    linear-gradient(180deg, var(--bg-2) 0%, #030607 100%);
}

.site-footer {
  border-top: 1px solid var(--line-soft);
  background: #020405;
  padding: 1.4rem 0 calc(2.1rem + env(safe-area-inset-bottom, 0px));
}

.footer-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.9rem;
  flex-wrap: wrap;
}

.site-footer p {
  margin: 0;
  color: var(--text-2);
  font-size: 0.86rem;
}

.site-footer nav {
  display: inline-flex;
  gap: 1rem;
  align-items: center;
}

.site-footer nav a {
  color: var(--text-1);
  font-size: 0.86rem;
}

.reveal {
  opacity: 0;
  transform: translateY(1.15rem);
  transition: opacity 720ms cubic-bezier(0.2, 0.6, 0.2, 1), transform 720ms cubic-bezier(0.2, 0.6, 0.2, 1);
}

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

/* --- Tablet (≤ 860px) --- */
@media (max-width: 860px) {
  .movement-grid {
    grid-template-columns: 1fr;
    gap: 0.75rem;
  }

  .origin-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .section-title {
    max-width: 100%;
  }

  .hero-title {
    font-size: clamp(2rem, 6.5vw, 3.6rem);
    line-height: 1.02;
  }

  .hero-grid {
    gap: 1rem;
  }

  .hero-subtitle {
    font-size: clamp(1rem, 2.8vw, 1.15rem);
  }

  .signal-stack {
    gap: 0.65rem;
  }
}

/* --- Mobile (≤ 700px) --- */
@media (max-width: 700px) {
  .container {
    width: min(var(--container), calc(100% - 1.5rem));
  }

  .section {
    padding: clamp(3rem, 8vw, 4.5rem) 0;
  }

  .hero {
    min-height: 100dvh;
    padding-top: 3.5rem;
    padding-bottom: 2rem;
    align-items: flex-start;
  }

  .hero-grid {
    gap: 0.9rem;
    padding-top: env(safe-area-inset-top, 0);
  }

  .hero-title {
    font-size: clamp(1.75rem, 8vw, 2.6rem);
    line-height: 1.05;
    letter-spacing: -0.025em;
  }

  .hero-subtitle {
    font-size: 0.98rem;
    line-height: 1.55;
  }

  .hero-line {
    font-size: 0.78rem;
    letter-spacing: 0.06em;
  }

  .hero-glow {
    width: 90vw;
    height: 90vw;
    filter: blur(36px);
    opacity: 0.5;
  }

  .kicker {
    font-size: 0.68rem;
    margin-bottom: 0.75rem;
  }

  .section-title {
    font-size: clamp(1.6rem, 7vw, 2.4rem);
    line-height: 1.1;
    max-width: 100%;
  }

  .section-copy {
    font-size: 0.95rem;
    line-height: 1.65;
    margin-top: 0.9rem;
  }

  .form-row {
    flex-direction: column;
    gap: 0.5rem;
  }

  .capture-form {
    margin-top: 0.5rem;
  }

  .capture-form input[type="email"] {
    padding: 0.85rem 0.9rem;
    font-size: 1rem;
    border-radius: 0.75rem;
  }

  .capture-form button {
    width: 100%;
    padding: 0.9rem 1.2rem;
    font-size: 1rem;
    min-height: 3rem;
    border-radius: 0.75rem;
  }

  .form-note {
    font-size: 0.8rem;
  }

  .movement-grid {
    gap: 0.65rem;
  }

  .movement-card {
    padding: 1.1rem;
  }

  .movement-card h3 {
    font-size: 1.2rem;
    margin-top: 0.5rem;
  }

  .movement-card p {
    font-size: 0.92rem;
    line-height: 1.55;
  }

  .mid-capture {
    margin-top: 1.5rem;
    padding: 1.1rem;
  }

  .mid-capture h3 {
    font-size: 1.25rem;
  }

  .mid-capture p {
    font-size: 0.92rem;
  }

  .signal-item {
    padding: 0.9rem 1rem;
  }

  .signal-item h3 {
    font-size: 1.05rem;
  }

  .signal-item p {
    font-size: 0.88rem;
  }

  .origin-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 0.5rem;
  }

  .origin-stat {
    padding: 0.85rem 0.7rem;
    text-align: center;
  }

  .origin-number {
    font-size: clamp(1.5rem, 6vw, 2rem);
  }

  .origin-label {
    font-size: 0.65rem;
    letter-spacing: 0.02em;
  }

  .footer-wrap {
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 0.6rem;
  }

  .site-footer nav {
    gap: 1.2rem;
  }

  .site-footer nav a {
    font-size: 0.82rem;
  }
}

/* --- Small phones (≤ 380px) --- */
@media (max-width: 380px) {
  .container {
    width: calc(100% - 1rem);
  }

  .hero-title {
    font-size: 1.65rem;
  }

  .section-title {
    font-size: 1.45rem;
  }

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

  .origin-stat {
    text-align: left;
    padding: 0.8rem;
  }

  .capture-form button {
    min-width: unset;
  }
}

/* --- Tap target safety for all touch devices --- */
@media (pointer: coarse) {
  .capture-form input[type="email"],
  .capture-form button {
    min-height: 48px;
  }

  .site-footer nav a {
    padding: 0.35rem 0.1rem;
    min-height: 44px;
    display: inline-flex;
    align-items: center;
  }

  a {
    min-height: 44px;
    display: inline-flex;
    align-items: center;
  }

  .section-copy a,
  .mid-capture a {
    min-height: unset;
    display: inline;
  }
}

@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;
  }

  .hero-glow {
    transform: translate(-50%, -8%);
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}