/* =============================================================
   BASE.CSS — Design tokens, reset e estilos fundacionais
   Estratégia: mobile-first (sem media queries aqui)
   ============================================================= */

/* ===================== TOKENS ===================== */
:root {
  --bg:        #0a0a0a;
  --bg-2:      #111111;
  --bg-3:      #181818;
  --border:    rgba(255, 255, 255, 0.08);
  --text:      #e8e2d9;
  --muted:     #7a7468;
  --accent:    #d4a843;
  --accent-2:  #e8c06a;
  --white:     #ffffff;

  --font-display: 'Playfair Display', Georgia, serif;
  --font-body:    'DM Sans', sans-serif;
  --font-mono:    'DM Mono', monospace;

  --radius:    4px;
  --radius-lg: 12px;

  --ease-out:    cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
}

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

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-weight: 300;
  line-height: 1.7;
  overflow-x: hidden;
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

ul {
  list-style: none;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font: inherit;
  color: inherit;
}

/* ===================== NOISE OVERLAY ===================== */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='1'/%3E%3C/svg%3E");
  opacity: 0.025;
  pointer-events: none;
  z-index: 9999;
}

/* ===================== UTILITÁRIOS ===================== */
.container {
  width: 100%;
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

.accent {
  color: var(--accent);
}

.mono {
  font-family: var(--font-mono);
  font-size: 0.8em;
  letter-spacing: 0.08em;
}

/* ===================== ANIMAÇÕES DE SCROLL ===================== */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.75s var(--ease-out), transform 0.75s var(--ease-out);
}

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

.reveal-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity 0.75s var(--ease-out), transform 0.75s var(--ease-out);
}

.reveal-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.reveal-right {
  opacity: 0;
  transform: translateX(40px);
  transition: opacity 0.75s var(--ease-out), transform 0.75s var(--ease-out);
}

.reveal-right.visible {
  opacity: 1;
  transform: translateX(0);
}

.reveal-scale {
  opacity: 0;
  transform: scale(0.93);
  transition: opacity 0.6s var(--ease-out), transform 0.6s var(--ease-out);
}

.reveal-scale.visible {
  opacity: 1;
  transform: scale(1);
}

/* Delay helpers */
.d1 { transition-delay: 0.1s; }
.d2 { transition-delay: 0.2s; }
.d3 { transition-delay: 0.3s; }
.d4 { transition-delay: 0.4s; }
.d5 { transition-delay: 0.5s; }

/* ===================== COMPONENTES COMPARTILHADOS ===================== */
.section-label {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.25rem;
}

.section-label::before {
  content: '';
  display: block;
  width: 20px;
  height: 1px;
  background: var(--accent);
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.25rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--white);
  margin-bottom: 1.25rem;
}

/* ===================== BOTÕES ===================== */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.85rem 1.75rem;
  background: var(--accent);
  color: var(--bg);
  font-weight: 500;
  font-size: 0.9375rem;
  border-radius: var(--radius);
  transition: background 0.2s, transform 0.2s;
}

.btn-primary:hover {
  background: var(--accent-2);
  transform: translateY(-2px);
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.85rem 1.75rem;
  border: 1px solid var(--border);
  color: var(--text);
  font-size: 0.9375rem;
  border-radius: var(--radius);
  transition: border-color 0.2s, color 0.2s, transform 0.2s;
}

.btn-ghost:hover {
  border-color: var(--text);
  transform: translateY(-2px);
}

/* ===================== CURSOR PERSONALIZADO ===================== */
.cursor-dot {
  position: fixed;
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9998;
  transform: translate(-50%, -50%);
  transition: transform 0.08s;
  mix-blend-mode: screen;
}

/* ===================== BACK TO TOP ===================== */
.back-top {
  position: fixed;
  bottom: 2rem;
  left: 2rem;
  width: 42px;
  height: 42px;
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  color: var(--text);
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s, border-color 0.2s;
  z-index: 50;
}

.back-top.visible {
  opacity: 1;
  pointer-events: auto;
}

.back-top:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* ===================== TOAST ===================== */
.toast {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: var(--bg-3);
  border: 1px solid var(--accent);
  color: var(--text);
  padding: 1rem 1.5rem;
  border-radius: var(--radius-lg);
  font-size: 0.875rem;
  z-index: 200;
  transform: translateY(100px);
  opacity: 0;
  transition: transform 0.4s var(--ease-out), opacity 0.4s;
}

.toast.show {
  transform: translateY(0);
  opacity: 1;
}