/* ============================================
   CARI TECH GRAPHIC — Design System
   ============================================ */

:root {
  /* Brand — vivo mas profissional (equilíbrio) */
  --brand-deep: #0B4E50;
  --brand-deep-2: #073E40;
  --brand-mid: #148486;
  --accent: #F5791C;
  --accent-2: #DB640C;
  --accent-glow: rgba(245, 121, 28, 0.28);

  /* Neutrals — light */
  --bg: #F5F8F8;
  --bg-elev: #FFFFFF;
  --bg-soft: #EDF4F4;
  --ink: #02373A;
  --ink-soft: #2F4F51;
  --ink-muted: #647E80;
  --line: rgba(2, 82, 84, 0.10);
  --line-strong: rgba(2, 82, 84, 0.18);

  /* Semantic */
  --success: #10B981;
  --warning: #F59E0B;
  --danger: #EF4444;

  /* Density */
  --space-unit: 8px;
  --section-pad: clamp(64px, 9vw, 128px);
  --container: 1200px;
  --radius-sm: 10px;
  --radius: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;

  /* Type — Inter para um look mais limpo e profissional */
  --font-sans: 'Inter', -apple-system, system-ui, sans-serif;
  --font-display: 'Inter', -apple-system, system-ui, sans-serif;

  /* Shadow */
  --shadow-sm: 0 1px 2px rgba(11, 31, 58, 0.04), 0 2px 8px rgba(11, 31, 58, 0.04);
  --shadow: 0 4px 12px rgba(11, 31, 58, 0.06), 0 12px 32px rgba(11, 31, 58, 0.08);
  --shadow-lg: 0 12px 24px rgba(11, 31, 58, 0.10), 0 32px 64px rgba(11, 31, 58, 0.14);
  --shadow-glow: 0 8px 32px var(--accent-glow);
}

/* Dark theme */
[data-theme="dark"] {
  --bg: #021F21;
  --bg-elev: #03393B;
  --bg-soft: #044A4D;
  --ink: #ECFAFA;
  --ink-soft: #C5DCDC;
  --ink-muted: #82A2A4;
  --line: rgba(255, 255, 255, 0.08);
  --line-strong: rgba(255, 255, 255, 0.16);
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3), 0 2px 8px rgba(0, 0, 0, 0.2);
  --shadow: 0 4px 12px rgba(0, 0, 0, 0.3), 0 12px 32px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 12px 24px rgba(0, 0, 0, 0.5), 0 32px 64px rgba(0, 0, 0, 0.5);
}

/* Density modes */
[data-density="cozy"] {
  --section-pad: clamp(48px, 6vw, 88px);
}
[data-density="spacious"] {
  --section-pad: clamp(80px, 12vw, 160px);
}

/* ============================================
   Base
   ============================================ */

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--ink);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  transition: background 0.4s ease, color 0.4s ease;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

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

input, textarea, select {
  font-family: inherit;
  color: inherit;
}

::selection {
  background: var(--accent);
  color: #fff;
}
#dotted-surface {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.55;
  mask-image: linear-gradient(180deg, #000 0%, #000 60%, transparent 100%);
  -webkit-mask-image: linear-gradient(180deg, #000 0%, #000 60%, transparent 100%);
}
[data-theme="dark"] #dotted-surface { opacity: 0.7; }
#root { position: relative; z-index: 1; }
.hero { background: transparent !important; }

/* ============================================
   Typography
   ============================================ */

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin: 0;
  color: var(--ink);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent-2);
}
[data-theme="dark"] .eyebrow { color: var(--accent); }

.eyebrow::before {
  content: '';
  width: 24px;
  height: 1.5px;
  background: currentColor;
  border-radius: 2px;
}

.h-display {
  font-size: clamp(40px, 6.4vw, 84px);
  font-weight: 700;
  letter-spacing: -0.035em;
  line-height: 0.98;
}

.h-section {
  font-size: clamp(32px, 4.4vw, 56px);
  letter-spacing: -0.025em;
  line-height: 1.05;
}

.lede {
  font-size: clamp(16px, 1.4vw, 19px);
  color: var(--ink-soft);
  line-height: 1.6;
  max-width: 60ch;
}

.gradient-text {
  background: linear-gradient(135deg, var(--brand-deep) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
[data-theme="dark"] .gradient-text {
  background: linear-gradient(135deg, var(--ink) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ============================================
   Layout
   ============================================ */

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

.section {
  padding: var(--section-pad) 0;
  position: relative;
}

/* ============================================
   Buttons
   ============================================ */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 26px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  letter-spacing: -0.005em;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, color 0.2s ease;
  white-space: nowrap;
}

.btn-primary {
  background: var(--brand-deep);
  color: #fff;
}
.btn-primary:hover {
  background: var(--brand-mid);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}
[data-theme="dark"] .btn-primary {
  background: var(--accent);
  color: var(--brand-deep);
}
[data-theme="dark"] .btn-primary:hover {
  box-shadow: var(--shadow-glow);
}

.btn-accent {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 100%);
  color: #fff;
  font-weight: 700;
}
.btn-accent:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border: 1.5px solid var(--line-strong);
}
.btn-ghost:hover {
  border-color: var(--ink);
  background: var(--bg-elev);
}

.btn-arrow {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--bg-elev);
  border: 1px solid var(--line);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-left: -4px;
  transition: transform 0.2s ease;
}
.btn:hover .btn-arrow { transform: translateX(3px); }

/* ============================================
   Cards — three styles
   ============================================ */

.card {
  background: var(--bg-elev);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
  position: relative;
  overflow: hidden;
}

[data-cards="solid"] .card {
  background: var(--bg-elev);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--line);
}
[data-cards="solid"] .card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow);
}

[data-cards="border"] .card {
  background: var(--bg);
  border: 1.5px solid var(--line-strong);
  box-shadow: none;
}
[data-cards="border"] .card:hover {
  border-color: var(--accent-2);
  transform: translateY(-4px);
}

[data-cards="glass"] .card {
  background: rgba(255, 255, 255, 0.6);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border: 1px solid rgba(255, 255, 255, 0.7);
  box-shadow: var(--shadow-sm);
}
[data-theme="dark"][data-cards="glass"] .card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
}
[data-cards="glass"] .card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow);
}

/* ============================================
   Reveal animation
   ============================================ */

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.9s cubic-bezier(0.16, 1, 0.3, 1), transform 0.9s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal.in {
  opacity: 1;
  transform: translateY(0);
}
.reveal.delay-1 { transition-delay: 0.08s; }
.reveal.delay-2 { transition-delay: 0.16s; }
.reveal.delay-3 { transition-delay: 0.24s; }
.reveal.delay-4 { transition-delay: 0.32s; }

/* ============================================
   Organic shapes / placeholders
   ============================================ */

.blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.55;
  pointer-events: none;
  z-index: 0;
}

.placeholder-img {
  width: 100%;
  height: 100%;
  background:
    repeating-linear-gradient(
      135deg,
      rgba(11, 31, 58, 0.04) 0px,
      rgba(11, 31, 58, 0.04) 12px,
      rgba(11, 31, 58, 0.08) 12px,
      rgba(11, 31, 58, 0.08) 13px
    ),
    linear-gradient(135deg, var(--bg-soft), var(--bg-elev));
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--ink-muted);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border-radius: var(--radius);
  overflow: hidden;
  position: relative;
}

[data-theme="dark"] .placeholder-img {
  background:
    repeating-linear-gradient(
      135deg,
      rgba(255, 255, 255, 0.03) 0px,
      rgba(255, 255, 255, 0.03) 12px,
      rgba(255, 255, 255, 0.06) 12px,
      rgba(255, 255, 255, 0.06) 13px
    ),
    linear-gradient(135deg, var(--bg-soft), var(--bg-elev));
}

/* ============================================
   Form
   ============================================ */

.field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.field label {
  font-size: 13px;
  font-weight: 600;
  color: var(--ink-soft);
  letter-spacing: 0.01em;
}
.field input,
.field textarea,
.field select {
  background: var(--bg-elev);
  border: 1.5px solid var(--line);
  border-radius: 12px;
  padding: 14px 16px;
  font-size: 15px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
  width: 100%;
  outline: none;
}
.field input:focus,
.field textarea:focus,
.field select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(255, 114, 0, 0.18);
}
.field.error input,
.field.error textarea {
  border-color: var(--danger);
}
.field-error {
  font-size: 12px;
  color: var(--danger);
  font-weight: 500;
  min-height: 14px;
}

/* ============================================
   Reduced motion
   ============================================ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  .reveal { opacity: 1; transform: none; }
}