/* O ATALHO LDI — design system
   Paleta: grafite profundo + areia/camel + off-white. Sóbria, masculina, sem ruído. */

/* Mesma identidade do site oficial: Playfair Display + Inter, preto e branco.
   `--sand` continua existindo como nome do acento para não quebrar nada —
   só que agora o acento é branco, como na marca dela. */
:root {
  --ink:      #000000;
  --ink-2:    #0A0A0A;
  --ink-3:    #171717;
  --line:     rgba(255,255,255,.13);
  --line-2:   rgba(255,255,255,.26);
  --paper:    #FFFFFF;
  --paper-2:  #E4E4E7;
  --muted:    #71717A;
  --muted-2:  #A1A1AA;
  --sand:     #FFFFFF;
  --rotulo:   #71717A;
  --sand-dim: #52525B;
  --navy:     #18181B;
  --green:    #6E8B6A;
  --radius:   0px;
  --serif:    'Playfair Display', Georgia, serif;
  --sans:     'Inter', ui-sans-serif, system-ui, -apple-system, sans-serif;
  --maxw:     1080px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

a { color: inherit; }

h1, h2, h3, .serif {
  font-family: var(--serif);
  font-weight: 400;
  letter-spacing: -0.01em;
  line-height: 1.15;
  margin: 0;
}

h1 { font-size: clamp(2.1rem, 5.5vw, 3.6rem); }
h2 { font-size: clamp(1.7rem, 3.8vw, 2.5rem); }
h3 { font-size: 1.15rem; }

p { margin: 0 0 1em; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 22px; }
.narrow { max-width: 720px; }

.eyebrow {
  font-size: 0.68rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--rotulo);
  font-weight: 500;
  margin: 0 0 14px;
}

.lead { font-size: 1.08rem; color: var(--muted-2); }

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

section { padding: 72px 0; }

.rule { height: 1px; background: var(--line); border: 0; margin: 0; }

/* ---------- botões ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 16px 28px;
  border-radius: 0;
  border: 1px solid var(--paper);
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-weight: 600;
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  cursor: pointer;
  text-decoration: none;
  transition: background .2s ease, color .2s ease;
}
.btn:hover { background: transparent; color: var(--paper); }
.btn.ghost { background: transparent; border-color: var(--line-2); color: var(--paper); }
.btn.ghost:hover { background: var(--paper); color: var(--ink); }
.btn.block { width: 100%; justify-content: center; }
.btn:disabled { opacity: .35; cursor: not-allowed; transform: none; }
.btn svg { width: 18px; height: 18px; }

/* ---------- cards ---------- */
.card {
  background: var(--ink-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
}
.grid { display: grid; gap: 16px; }
.g2 { grid-template-columns: repeat(2, 1fr); }
.g3 { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 800px) { .g2, .g3 { grid-template-columns: 1fr; } }

/* riscas de giz — mesmo motivo de alfaiataria da landing */
.chalk {
  background-image: repeating-linear-gradient(90deg,
    rgba(255,255,255,.035) 0 1px, transparent 1px 13px);
}

.ico {
  width: 38px; height: 38px;
  display: grid; place-items: center;
  border-radius: 3px;
  background: rgba(255,255,255,.08);
  color: var(--sand);
  margin-bottom: 14px;
}
.ico svg { width: 20px; height: 20px; }

svg.i { width: 18px; height: 18px; stroke: currentColor; fill: none; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }

.tag {
  display: inline-block;
  font-size: .68rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  padding: 5px 10px;
  border-radius: 2px;
  border: 1px solid var(--line-2);
  color: var(--muted-2);
  font-weight: 600;
}
.tag.p1 { color: var(--paper); border-color: var(--line-2); background: rgba(255,255,255,.06); }
.tag.p2 { color: var(--muted-2); }
.tag.p3 { color: var(--muted); }