:root {
  /* navy em camadas */
  --navy-void: #060E1C;
  --navy-900: #0A1728;
  --navy-800: #0E2038;
  --navy-700: #123052;
  --navy-600: #173A63;
  --navy-line: #20406B;

  /* dourado, latão envelhecido */
  --gold-deep: #8A6A26;
  --gold-core: #C6A15B;
  --gold-light: #E8CE8D;
  --gold-glow: rgba(200, 161, 91, 0.28);
  --gold-foil: linear-gradient(100deg, #8A6A26 0%, #C6A15B 34%, #F0DBA0 52%, #C6A15B 68%, #8A6A26 100%);

  /* acento dissonante, uso único */
  --seal: #7A2A22;
  --seal-light: #E2735F;

  /* neutros e texto */
  --ink-100: #EAF0F8;
  --ink-300: #A6B7D2;
  --ink-500: #6C80A2;
  --parchment: #F3E9D2;

  --radius: 5px;
  --max: 760px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--navy-900);
  color: var(--ink-100);
  font-family: "Hanken Grotesk", system-ui, sans-serif;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  position: relative;
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 500;
  opacity: 0.035;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
}

h1, h2, h3 {
  font-family: "Fraunces", Georgia, serif;
  font-weight: 600;
  line-height: 1.15;
  color: var(--ink-100);
  margin: 0;
  text-wrap: balance;
}

a {
  color: var(--gold-core);
}

/* faixa de protótipo */

.proto-banner {
  background: var(--navy-void);
  color: var(--ink-500);
  font-family: "Space Mono", "Courier New", monospace;
  font-size: 0.75rem;
  text-align: center;
  padding: 8px 16px;
  letter-spacing: 0.02em;
  border-bottom: 1px solid var(--navy-line);
}

/* cabecalho */

.site-header {
  position: relative;
  overflow: hidden;
  background: var(--navy-void);
  padding: 64px 0 52px;
  text-align: center;
  border-bottom: 1px solid var(--navy-line);
}

.facho {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(120% 80% at 50% -10%, var(--gold-glow), transparent 55%),
    radial-gradient(140% 120% at 50% 40%, transparent, rgba(0, 0, 0, 0.55));
  pointer-events: none;
}

.medallion {
  display: block;
  margin: 0 auto 18px;
}

.eyebrow {
  margin: 0 0 16px;
  font-family: "Space Mono", "Courier New", monospace;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold-core);
}

.site-header h1 {
  font-family: "Cinzel", "Times New Roman", serif;
  font-weight: 900;
  font-size: clamp(2.1rem, 5.5vw, 3.6rem);
  letter-spacing: 0.01em;
  max-width: 18ch;
  margin: 0 auto;
  background: var(--gold-foil);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.lede {
  margin: 22px auto 0;
  max-width: 46ch;
  font-family: "Fraunces", Georgia, serif;
  font-style: italic;
  font-weight: 300;
  font-size: 1.15rem;
  color: var(--ink-300);
}

/* secoes */

.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

.block {
  padding: 56px 0;
  border-bottom: 1px solid var(--navy-line);
  background: var(--navy-900);
}

.block.alt {
  background: var(--navy-800);
}

.block h2 {
  display: flex;
  align-items: baseline;
  gap: 14px;
  font-size: clamp(1.4rem, 3vw, 1.7rem);
  margin-bottom: 20px;
}

.step {
  font-family: "Space Mono", "Courier New", monospace;
  font-size: 1rem;
  font-weight: 700;
  color: var(--gold-core);
  border: 1.5px solid var(--gold-core);
  border-radius: 999px;
  width: 2em;
  height: 2em;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  background: var(--navy-800);
}

.step.seal {
  color: var(--gold-light);
  border-color: var(--seal);
  background: var(--navy-void);
  box-shadow: 0 0 0 3px rgba(122, 42, 34, 0.25);
}

.block > .wrap > p {
  max-width: 62ch;
  color: var(--ink-300);
  text-wrap: pretty;
}

/* video */

.video-frame {
  position: relative;
  margin: 28px 0 14px;
  padding: 1px;
  border-radius: 8px;
  background: var(--gold-foil);
  box-shadow: 0 0 18px var(--gold-glow);
}

.video-inner {
  aspect-ratio: 16 / 9;
  background: #000;
  border-radius: 7px;
  overflow: hidden;
}

.video-inner iframe {
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
}

.video-tag {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 2;
  font-family: "Space Mono", "Courier New", monospace;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold-light);
  background: rgba(6, 14, 28, 0.72);
  border: 1px solid var(--gold-deep);
  border-radius: 999px;
  padding: 5px 12px;
}

.video-link {
  display: inline-block;
  font-family: "Space Mono", "Courier New", monospace;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* entregas */

.deliverables {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  display: grid;
  gap: 20px;
}

.deliverables li {
  position: relative;
  background: var(--navy-800);
  border: 1px solid var(--navy-line);
  border-radius: var(--radius);
  padding: 24px 26px;
  transition: border-color 0.4s cubic-bezier(0.2, 0.7, 0.2, 1), transform 0.4s cubic-bezier(0.2, 0.7, 0.2, 1), box-shadow 0.4s cubic-bezier(0.2, 0.7, 0.2, 1);
}

.deliverables li:hover {
  border-color: var(--gold-core);
  box-shadow: 0 0 22px var(--gold-glow);
  transform: translateY(-4px);
}

.card-tag {
  display: block;
  font-family: "Space Mono", "Courier New", monospace;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold-core);
  margin-bottom: 10px;
}

.deliverables h3 {
  font-size: 1.15rem;
  margin-bottom: 8px;
}

.deliverables p {
  margin: 0;
  color: var(--ink-300);
  max-width: 60ch;
}

/* bloco de regra */

.block.rule {
  background: var(--navy-void);
}

.block.rule p {
  color: var(--ink-300);
  max-width: 62ch;
}

.block.rule strong {
  color: var(--ink-100);
}

/* formulario */

form {
  margin-top: 8px;
}

fieldset {
  position: relative;
  border: 1px solid var(--navy-line);
  background: var(--navy-800);
  border-radius: var(--radius);
  padding: 28px 24px 24px;
  margin: 0 0 24px;
}

fieldset::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 16px;
  right: 16px;
  height: 2px;
  background: var(--gold-foil);
  box-shadow: 0 0 10px var(--gold-glow);
}

legend {
  padding: 0 8px;
  font-family: "Space Mono", "Courier New", monospace;
  font-weight: 700;
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold-core);
}

.field {
  margin-bottom: 18px;
}

.field:last-child {
  margin-bottom: 0;
}

.field label {
  display: block;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--ink-100);
}

.hint {
  font-weight: 400;
  color: var(--ink-500);
  font-size: 0.85rem;
}

input[type="text"],
input[type="email"],
input[type="tel"] {
  width: 100%;
  padding: 12px 14px;
  font-size: 1rem;
  font-family: inherit;
  color: var(--ink-100);
  background: var(--navy-700);
  border: 1px solid var(--navy-line);
  border-radius: var(--radius);
}

input[type="text"]:-webkit-autofill,
input[type="email"]:-webkit-autofill,
input[type="tel"]:-webkit-autofill {
  -webkit-box-shadow: 0 0 0 1000px var(--navy-700) inset;
  -webkit-text-fill-color: var(--ink-100);
}

input[type="file"] {
  width: 100%;
  padding: 10px 0;
  font-size: 0.9rem;
  font-family: inherit;
  color: var(--ink-300);
}

input[type="file"]::file-selector-button {
  font-family: "Space Mono", "Courier New", monospace;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--gold-core);
  background: var(--navy-void);
  border: 1px solid var(--gold-deep);
  border-radius: 999px;
  padding: 8px 16px;
  margin-right: 12px;
  cursor: pointer;
}

input[type="file"]::file-selector-button:hover {
  border-color: var(--gold-core);
}

input:focus-visible {
  outline: 2px solid var(--gold-light);
  outline-offset: 2px;
}

.checkbox-field {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.checkbox-field input[type="checkbox"] {
  appearance: none;
  -webkit-appearance: none;
  width: 20px;
  height: 20px;
  min-width: 20px;
  margin-top: 2px;
  border: 1.5px solid var(--ink-500);
  border-radius: 4px;
  background: var(--navy-700);
  cursor: pointer;
  position: relative;
}

.checkbox-field input[type="checkbox"]:checked {
  background: var(--gold-core);
  border-color: var(--gold-core);
}

.checkbox-field input[type="checkbox"]:checked::after {
  content: "";
  position: absolute;
  left: 6px;
  top: 2px;
  width: 5px;
  height: 9px;
  border: solid var(--navy-void);
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

.checkbox-field input[type="checkbox"]:focus-visible {
  outline: 2px solid var(--gold-light);
  outline-offset: 2px;
}

.checkbox-field label {
  font-weight: 400;
  color: var(--ink-300);
}

.form-feedback {
  min-height: 1.4em;
  margin: 18px 0 0;
  font-weight: 600;
}

.form-feedback[data-state="error"] {
  color: var(--seal-light);
}

.form-feedback[data-state="success"] {
  color: var(--gold-light);
}

.form-feedback[data-state="pending"] {
  color: var(--ink-300);
}

.submit-btn {
  margin-top: 18px;
  width: 100%;
  padding: 16px 24px;
  font-family: "Space Mono", "Courier New", monospace;
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--navy-void);
  background: var(--gold-foil);
  border: none;
  border-radius: 999px;
  cursor: pointer;
  min-height: 44px;
  box-shadow: 0 0 0 rgba(0, 0, 0, 0);
  transition: box-shadow 0.3s ease, transform 0.3s ease;
}

.submit-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.submit-btn:hover {
  box-shadow: 0 0 24px var(--gold-glow);
  transform: translateY(-2px);
}

.submit-btn:focus-visible {
  outline: 2px solid var(--gold-light);
  outline-offset: 2px;
}

@media (min-width: 560px) {
  .submit-btn {
    width: auto;
  }
}

/* rodape */

.site-footer {
  padding: 32px 0 48px;
  background: var(--navy-void);
}

.site-footer p {
  margin: 0;
  font-family: "Space Mono", "Courier New", monospace;
  font-size: 0.78rem;
  color: var(--ink-500);
}

@media (max-width: 480px) {
  .site-header {
    padding: 48px 0 40px;
  }

  .block {
    padding: 40px 0;
  }

  fieldset {
    padding: 22px 18px 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .deliverables li,
  .submit-btn {
    transition: none;
  }
}