/* ============================================
   GASSET — Design tokens
   Tema: um sinal instável que se estabiliza.
   Referência direta ao domínio técnico do negócio:
   crash rate, telemetria, App Store review status.
   ============================================ */

:root {
  --bg: #0a0d12;
  --bg-elevated: #11161f;
  --bg-elevated-2: #161c27;
  --grid-line: rgba(139, 255, 197, 0.055);
  --border: rgba(232, 240, 241, 0.09);
  --border-strong: rgba(232, 240, 241, 0.16);

  --text-primary: #eaf0f1;
  --text-muted: #8b94a3;
  --text-dim: #5c6577;

  --accent-stable: #3ed598;
  --accent-stable-dim: rgba(62, 213, 152, 0.14);
  --accent-crash: #ff8a4a;
  --accent-crash-dim: rgba(255, 138, 74, 0.14);

  --font-display: "Space Grotesk", sans-serif;
  --font-body: "IBM Plex Sans", sans-serif;
  --font-mono: "JetBrains Mono", monospace;

  --radius: 3px;
  --radius-lg: 6px;
  --max-width: 1180px;
}

* { box-sizing: border-box; }

@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;
  }
}

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 42px 42px;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 28px;
}

/* -------- Eyebrow / mono labels -------- */
.eyebrow {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-stable);
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.eyebrow::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent-stable);
  box-shadow: 0 0 8px 1px var(--accent-stable);
  flex-shrink: 0;
}

/* -------- Header -------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(10, 13, 18, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 20px;
  letter-spacing: -0.01em;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 9px;
}

.brand-mark {
  width: 9px;
  height: 9px;
  background: var(--accent-stable);
  border-radius: 1px;
  box-shadow: 0 0 10px 1px var(--accent-stable);
}

.nav-links {
  display: flex;
  gap: 32px;
  font-size: 14.5px;
  color: var(--text-muted);
}

.nav-links a { text-decoration: none; transition: color 0.15s ease; }
.nav-links a:hover { color: var(--text-primary); }

.btn {
  font-family: var(--font-mono);
  font-size: 13.5px;
  letter-spacing: 0.02em;
  padding: 11px 22px;
  border-radius: var(--radius);
  border: 1px solid var(--border-strong);
  background: transparent;
  color: var(--text-primary);
  text-decoration: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: border-color 0.18s ease, background 0.18s ease, transform 0.12s ease;
}

.btn:hover { border-color: var(--accent-stable); background: var(--accent-stable-dim); }
.btn:active { transform: translateY(1px); }

.btn-solid {
  background: var(--accent-stable);
  border-color: var(--accent-stable);
  color: #06120c;
  font-weight: 600;
}

.btn-solid:hover { background: #4fe0a6; border-color: #4fe0a6; }

/* -------- Hero -------- */
.hero {
  padding: 96px 0 40px;
  position: relative;
  overflow: hidden;
}

.hero .container {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: center;
}

.hero-eyebrow { margin-bottom: 22px; }

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(34px, 4.4vw, 54px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin: 0 0 22px;
  font-weight: 600;
}

.hero h1 em {
  font-style: normal;
  background: linear-gradient(90deg, var(--accent-crash), var(--accent-stable));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero p.lead {
  font-size: 17.5px;
  color: var(--text-muted);
  max-width: 46ch;
  margin: 0 0 34px;
}

.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

.hero-alt-link {
  margin: 20px 0 0;
  font-size: 14px;
  color: var(--text-dim);
}

.hero-alt-link a {
  color: var(--accent-stable);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.15s ease;
}

.hero-alt-link a:hover { border-bottom-color: var(--accent-stable); }

.hero-scope {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 22px 22px 14px;
}

.scope-label {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--text-dim);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 14px;
  display: flex;
  justify-content: space-between;
}

.waveform-svg { width: 100%; height: auto; display: block; }

.wave-path-crash {
  fill: none;
  stroke: var(--accent-crash);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  filter: drop-shadow(0 0 4px rgba(255, 138, 74, 0.45));
}

.wave-path-stable {
  fill: none;
  stroke: var(--accent-stable);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  filter: drop-shadow(0 0 4px rgba(62, 213, 152, 0.45));
  stroke-dasharray: 900;
  stroke-dashoffset: 900;
  animation: draw 2.4s 0.6s ease forwards;
}

@keyframes draw { to { stroke-dashoffset: 0; } }

.scope-readout {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--text-dim);
  padding: 10px 2px 4px;
  border-top: 1px solid var(--border);
  margin-top: 6px;
}

.scope-readout span.stat-value { color: var(--text-primary); }

/* -------- Section shell -------- */
section { padding: 88px 0; }

.section-head {
  max-width: 620px;
  margin-bottom: 52px;
}

.section-head .eyebrow { margin-bottom: 16px; }

.section-head h2 {
  font-family: var(--font-display);
  font-size: clamp(26px, 3vw, 36px);
  line-height: 1.18;
  letter-spacing: -0.015em;
  margin: 0 0 14px;
  font-weight: 600;
}

.section-head p {
  color: var(--text-muted);
  font-size: 16px;
  margin: 0;
}

/* -------- Dores (log console) -------- */
.log-console {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.log-console-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 13px 18px;
  border-bottom: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-dim);
}

.log-dot { width: 9px; height: 9px; border-radius: 50%; background: var(--border-strong); }

.log-line {
  display: grid;
  grid-template-columns: 108px 1fr;
  gap: 18px;
  padding: 18px 22px;
  border-bottom: 1px solid var(--border);
  font-size: 15px;
}

.log-line:last-child { border-bottom: none; }

.log-tag {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  height: fit-content;
  padding: 3px 8px;
  border-radius: var(--radius);
  white-space: nowrap;
}

.tag-crash { background: var(--accent-crash-dim); color: var(--accent-crash); }
.tag-reject { background: rgba(255, 205, 74, 0.14); color: #ffcd4a; }
.tag-debt { background: rgba(139, 148, 163, 0.16); color: var(--text-muted); }

.log-text strong { color: var(--text-primary); }
.log-text { color: var(--text-muted); }

/* -------- Camadas de serviço -------- */
.layers {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.layer-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 30px 26px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.layer-card:hover { border-color: var(--border-strong); transform: translateY(-3px); }

.layer-card.featured { border-color: var(--accent-stable); background: linear-gradient(180deg, rgba(62, 213, 152, 0.06), var(--bg-elevated) 45%); }

.layer-cadence {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent-stable);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.layer-card h3 {
  font-family: var(--font-display);
  font-size: 21px;
  margin: 0;
  font-weight: 600;
}

.layer-card p { color: var(--text-muted); font-size: 14.5px; margin: 0; }

.layer-list { list-style: none; padding: 0; margin: 6px 0 0; display: flex; flex-direction: column; gap: 8px; }

.layer-list li {
  font-size: 13.5px;
  color: var(--text-muted);
  padding-left: 18px;
  position: relative;
}

.layer-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 7px;
  width: 6px;
  height: 6px;
  background: var(--accent-stable);
  border-radius: 1px;
}

/* -------- Glossário (seção Descoberta) -------- */
.glossary-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.glossary-item {
  background: var(--bg-elevated);
  padding: 24px 20px;
}

.glossary-term {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent-stable);
  margin-bottom: 10px;
}

.glossary-def {
  font-size: 13.5px;
  color: var(--text-muted);
  margin: 0;
  line-height: 1.55;
}

/* -------- Diferencial -------- */
.diff-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.diff-item {
  background: var(--bg-elevated);
  padding: 28px 24px;
}

.diff-item .eyebrow { font-size: 11px; margin-bottom: 12px; }
.diff-item h4 { font-family: var(--font-display); font-size: 17px; margin: 0 0 8px; font-weight: 600; }
.diff-item p { color: var(--text-muted); font-size: 13.5px; margin: 0; }

/* -------- Form -------- */
.form-section { background: var(--bg-elevated); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }

.form-wrap {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 60px;
  align-items: start;
}

.form-side h2 { font-family: var(--font-display); font-size: 30px; margin: 0 0 16px; font-weight: 600; letter-spacing: -0.015em; }
.form-side p { color: var(--text-muted); margin: 0 0 22px; }

.form-side .checklist { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 12px; }
.form-side .checklist li { font-size: 14.5px; color: var(--text-muted); padding-left: 24px; position: relative; }
.form-side .checklist li::before {
  content: "✓";
  position: absolute; left: 0; top: 0;
  color: var(--accent-stable);
  font-family: var(--font-mono);
  font-size: 13px;
}

.field { margin-bottom: 18px; }
.field label {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 8px;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  padding: 12px 14px;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 14.5px;
  transition: border-color 0.15s ease;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--accent-stable);
}

.field textarea { resize: vertical; min-height: 110px; }

.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

.hp-field { position: absolute; left: -9999px; opacity: 0; }

.form-note { font-size: 12.5px; color: var(--text-dim); margin-top: 10px; }

.alert {
  border-radius: var(--radius);
  padding: 14px 16px;
  font-size: 14px;
  margin-bottom: 24px;
  font-family: var(--font-mono);
  border: 1px solid;
}

.alert-success { background: var(--accent-stable-dim); border-color: var(--accent-stable); color: var(--accent-stable); }
.alert-error { background: var(--accent-crash-dim); border-color: var(--accent-crash); color: var(--accent-crash); }

/* -------- Footer -------- */
.site-footer {
  padding: 40px 0;
  font-size: 13px;
  color: var(--text-dim);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.site-footer a { color: var(--text-muted); text-decoration: none; }

/* -------- Reveal on scroll -------- */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }

/* -------- Responsive -------- */
@media (max-width: 920px) {
  .hero .container { grid-template-columns: 1fr; }
  .layers { grid-template-columns: 1fr; }
  .diff-grid { grid-template-columns: 1fr; }
  .glossary-grid { grid-template-columns: 1fr 1fr; }
  .form-wrap { grid-template-columns: 1fr; }
  .nav-links { display: none; }
  .field-row { grid-template-columns: 1fr; }
  .log-line { grid-template-columns: 1fr; gap: 8px; }
}