/* J.R.F Associados — Design Tokens */
:root {
  /* Cores base */
  --ink: #0B1B2B;
  --navy: #1C3A5B;
  --navy-deep: #13293F;
  --steel: #6B7F94;
  --steel-soft: #A5B4C2;
  --mist: #F4F6F9;
  --paper: #FFFFFF;
  --line: oklch(0.92 0.01 230);
  --line-strong: oklch(0.85 0.015 230);

  /* Acento (tweak-able) */
  --accent-h: 215;
  --accent: oklch(0.62 0.16 var(--accent-h));
  --accent-soft: oklch(0.92 0.05 var(--accent-h));
  --accent-deep: oklch(0.45 0.18 var(--accent-h));
  --accent-glow: oklch(0.72 0.18 var(--accent-h) / 0.35);

  /* Semânticas */
  --bg: var(--paper);
  --bg-alt: var(--mist);
  --bg-invert: var(--ink);
  --fg: var(--ink);
  --fg-soft: var(--steel);
  --fg-invert: var(--paper);

  /* Tipografia */
  --font-display: 'Space Grotesk', 'Helvetica Neue', system-ui, sans-serif;
  --font-body: 'IBM Plex Sans', 'Helvetica Neue', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', Menlo, monospace;

  /* Escala */
  --step--1: clamp(0.78rem, 0.76rem + 0.1vw, 0.85rem);
  --step-0:  clamp(0.95rem, 0.93rem + 0.1vw, 1rem);
  --step-1:  clamp(1.1rem, 1.05rem + 0.25vw, 1.2rem);
  --step-2:  clamp(1.35rem, 1.25rem + 0.5vw, 1.6rem);
  --step-3:  clamp(1.7rem, 1.5rem + 1vw, 2.2rem);
  --step-4:  clamp(2.2rem, 1.8rem + 2vw, 3.2rem);
  --step-5:  clamp(3rem, 2.3rem + 3.5vw, 5rem);
  --step-6:  clamp(4rem, 2.8rem + 6vw, 7.5rem);

  /* Espaçamento */
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2rem;
  --space-6: 3rem;
  --space-8: 5rem;
  --space-10: 8rem;

  --radius-sm: 6px;
  --radius: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;

  --shadow-sm: 0 1px 2px rgba(11,27,43,0.06), 0 1px 3px rgba(11,27,43,0.04);
  --shadow: 0 4px 12px rgba(11,27,43,0.08), 0 12px 32px rgba(11,27,43,0.06);
  --shadow-lg: 0 20px 48px rgba(11,27,43,0.14), 0 4px 8px rgba(11,27,43,0.06);

  --container: 1280px;
  --gutter: clamp(1rem, 3vw, 2.5rem);

  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

/* Dark mode */
[data-theme="dark"] {
  --bg: #070F18;
  --bg-alt: #0B1B2B;
  --bg-invert: var(--paper);
  --fg: #E8EEF5;
  --fg-soft: #8A9AAC;
  --fg-invert: var(--ink);
  --line: oklch(0.22 0.02 230);
  --line-strong: oklch(0.3 0.025 230);
  --mist: #0B1B2B;
  --paper: #0B1B2B;
}

/* Density */
[data-density="compact"] {
  --space-8: 4rem;
  --space-10: 6rem;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--fg);
  font-size: var(--step-0);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  cursor: none;
}
@media (max-width: 820px) {
  body { cursor: auto; }
}

a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: 0; background: none; color: inherit; }
img { display: block; max-width: 100%; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.05;
  margin: 0;
  color: var(--fg);
  text-wrap: balance;
}
h1 { font-size: var(--step-6); letter-spacing: -0.035em; }
h2 { font-size: var(--step-5); letter-spacing: -0.03em; }
h3 { font-size: var(--step-3); }
h4 { font-size: var(--step-2); }
p { margin: 0; text-wrap: pretty; }

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

.mono { font-family: var(--font-mono); font-size: 0.82em; letter-spacing: 0.02em; }
.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
}
.eyebrow::before {
  content: "";
  width: 24px; height: 1px;
  background: currentColor;
  display: inline-block;
}

/* Botões */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
  padding: 0.95em 1.6em;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 0.95rem;
  letter-spacing: -0.005em;
  border-radius: 999px;
  transition: transform 0.3s var(--ease), background 0.3s var(--ease), color 0.3s var(--ease), box-shadow 0.3s var(--ease);
  position: relative;
  overflow: hidden;
  white-space: nowrap;
}
.btn svg { width: 1em; height: 1em; }
.btn-primary {
  background: var(--ink);
  color: var(--paper);
}
[data-theme="dark"] .btn-primary { background: var(--paper); color: var(--ink); }
.btn-primary:hover {
  background: var(--accent-deep);
  color: var(--paper);
  transform: translateY(-2px);
  box-shadow: 0 12px 28px var(--accent-glow);
}
.btn-ghost {
  background: transparent;
  color: var(--fg);
  border: 1px solid var(--line-strong);
}
.btn-ghost:hover {
  border-color: var(--ink);
  background: var(--ink);
  color: var(--paper);
  transform: translateY(-2px);
}
[data-theme="dark"] .btn-ghost:hover { background: var(--paper); color: var(--ink); border-color: var(--paper); }

.btn-wa {
  background: #25D366;
  color: #fff;
}
.btn-wa:hover { background: #1ea853; transform: translateY(-2px); box-shadow: 0 12px 28px rgba(37,211,102,0.35); }

/* Reveal on scroll */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.9s var(--ease-out), transform 0.9s var(--ease-out);
}
.reveal.in { opacity: 1; transform: none; }
.reveal[data-delay="1"] { transition-delay: 0.08s; }
.reveal[data-delay="2"] { transition-delay: 0.16s; }
.reveal[data-delay="3"] { transition-delay: 0.24s; }
.reveal[data-delay="4"] { transition-delay: 0.32s; }

/* Cursor customizado */
.cursor-dot, .cursor-ring {
  position: fixed;
  top: 0; left: 0;
  pointer-events: none;
  z-index: 9999;
  mix-blend-mode: difference;
  will-change: transform;
}
.cursor-dot {
  width: 6px; height: 6px;
  background: #fff;
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width 0.3s var(--ease), height 0.3s var(--ease);
}
.cursor-ring {
  width: 36px; height: 36px;
  border: 1px solid rgba(255,255,255,0.5);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width 0.4s var(--ease), height 0.4s var(--ease), border-color 0.3s var(--ease);
}
.cursor-ring.grow { width: 72px; height: 72px; border-color: #fff; }
@media (max-width: 820px) { .cursor-dot, .cursor-ring { display: none; } }

/* Utilitários */
.divider-line {
  height: 1px;
  background: var(--line);
  width: 100%;
}
.tag {
  display: inline-flex;
  align-items: center;
  padding: 0.35em 0.9em;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fg-soft);
}

/* Scrollbar sutil */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--line-strong); border-radius: 10px; }
::-webkit-scrollbar-thumb:hover { background: var(--steel); }

::selection { background: var(--accent); color: var(--paper); }