/* ============================================================
   Altzum — site público
   Paleta derivada da logo: roxo profundo + branco
   ============================================================ */
:root {
  --roxo: #4B1487;
  --roxo-900: #2E0A57;
  --roxo-700: #3D0F70;
  --roxo-500: #6B2BB8;
  --lilas: #C9B3EA;
  --lilas-200: #E9DFF7;
  --branco: #FFFFFF;
  --branco-70: rgba(255,255,255,.72);
  --branco-40: rgba(255,255,255,.4);
  --branco-15: rgba(255,255,255,.15);
  --branco-08: rgba(255,255,255,.08);
  --radius-key: 28px;
  --font-display: 'Sora', 'Plus Jakarta Sans', 'Segoe UI', system-ui, sans-serif;
  --font-body: 'Inter', 'Segoe UI', system-ui, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  background: var(--roxo);
  background-image:
    radial-gradient(1200px 600px at 80% -10%, rgba(255,255,255,.10), transparent 60%),
    radial-gradient(900px 500px at -10% 110%, rgba(255,255,255,.07), transparent 60%);
  color: var(--branco);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  display: flex;
  flex-direction: column;
}
a { color: inherit; text-decoration: none; }
h1, h2, h3 { font-family: var(--font-display); letter-spacing: -.02em; margin: 0; }
p { margin: 0; }
.container { width: min(1120px, calc(100% - 48px)); margin-inline: auto; }

/* ---------- marca ---------- */
.brand { display: inline-flex; align-items: center; gap: 12px; color: var(--branco); }
.brand svg { width: 44px; height: auto; display: block; }
.brand__name { font-family: var(--font-display); font-weight: 800; font-size: 1.5rem; letter-spacing: -.03em; }
.brand__name em { font-style: normal; color: var(--lilas); }

/* ---------- botões ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  padding: 14px 26px; border-radius: 999px; font-weight: 600; font-size: 1rem;
  border: 2px solid transparent; cursor: pointer; font-family: var(--font-body);
  transition: transform .15s ease, background .2s ease, border-color .2s ease, box-shadow .2s ease;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn--primary { background: var(--branco); color: var(--roxo); box-shadow: 0 10px 30px rgba(0,0,0,.25); }
.btn--primary:hover { background: var(--lilas-200); }
.btn--ghost { background: transparent; color: var(--branco); border-color: var(--branco-40); }
.btn--ghost:hover { border-color: var(--branco); background: var(--branco-08); }
.btn--sm { padding: 10px 20px; font-size: .95rem; }

/* ---------- header ---------- */
.site-header { padding: 28px 0; }
.site-header .container { display: flex; align-items: center; justify-content: space-between; gap: 16px; }

/* ---------- hero ---------- */
.hero { flex: 1; display: flex; align-items: center; padding: 48px 0 72px; }
.hero__grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 56px; align-items: center; }
.hero__eyebrow {
  display: inline-flex; align-items: center; gap: 8px; padding: 6px 14px; border-radius: 999px;
  border: 1.5px solid var(--branco-15); background: var(--branco-08);
  font-size: .85rem; font-weight: 600; letter-spacing: .04em; text-transform: uppercase; color: var(--lilas);
  margin-bottom: 22px;
}
.hero__eyebrow::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--lilas); }
.hero h1 { font-size: clamp(2.4rem, 5.2vw, 4.2rem); font-weight: 800; line-height: 1.05; }
.hero h1 em { font-style: normal; color: var(--lilas); }
.hero__lead { margin-top: 22px; font-size: 1.15rem; color: var(--branco-70); max-width: 34rem; }
.hero__actions { margin-top: 36px; display: flex; gap: 14px; flex-wrap: wrap; }

/* a "tecla" gigante — motivo visual da logo */
.keycap {
  position: relative; aspect-ratio: 600 / 430; width: 100%; max-width: 460px; margin-inline: auto;
  color: var(--branco);
  filter: drop-shadow(0 30px 60px rgba(0,0,0,.35));
  animation: float 6s ease-in-out infinite;
}
.keycap svg { width: 100%; height: 100%; display: block; }
.keycap__word {
  position: absolute; left: 50%; top: 40%; transform: translate(-50%, -50%);
  font-family: var(--font-display); font-weight: 800; font-style: italic; font-size: clamp(3rem, 9vw, 5.6rem);
  letter-spacing: -.05em; line-height: 1;
}
@keyframes float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }
@media (prefers-reduced-motion: reduce) { .keycap { animation: none; } }

/* ---------- pilares ---------- */
.pillars { padding: 0 0 80px; }
.pillars__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.pillar {
  border: 2px solid var(--branco-15); background: var(--branco-08);
  border-radius: var(--radius-key); padding: 28px 26px;
  transition: border-color .2s ease, transform .2s ease;
}
.pillar:hover { border-color: var(--branco-40); transform: translateY(-3px); }
.pillar__icon {
  width: 46px; height: 46px; border-radius: 14px; display: grid; place-items: center;
  background: var(--branco); color: var(--roxo); margin-bottom: 18px; font-family: var(--font-display); font-weight: 800; font-size: 1.1rem;
}
.pillar h3 { font-size: 1.2rem; font-weight: 700; margin-bottom: 8px; }
.pillar p { color: var(--branco-70); font-size: .98rem; }

/* ---------- faixa de frase ---------- */
.statement { padding: 0 0 90px; text-align: center; }
.statement h2 { font-size: clamp(1.6rem, 3.2vw, 2.4rem); font-weight: 700; max-width: 40rem; margin-inline: auto; }
.statement p { margin-top: 14px; color: var(--branco-70); }

/* ---------- footer ---------- */
.site-footer { border-top: 1.5px solid var(--branco-15); padding: 26px 0; font-size: .9rem; color: var(--branco-70); }
.site-footer .container { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; }

/* ---------- auth (login) ---------- */
.auth { flex: 1; display: grid; place-items: center; padding: 40px 0 80px; }
.auth__card {
  width: min(440px, 100%); border: 2px solid var(--branco-15); background: var(--branco-08);
  border-radius: var(--radius-key); padding: 40px 36px; backdrop-filter: blur(6px);
}
.auth__card .brand { margin-bottom: 26px; }
.auth__card h1 { font-size: 1.6rem; font-weight: 700; margin-bottom: 6px; }
.auth__card .auth__sub { color: var(--branco-70); margin-bottom: 26px; font-size: .98rem; }
.field { margin-bottom: 18px; }
.field label { display: block; font-size: .88rem; font-weight: 600; margin-bottom: 8px; color: var(--lilas-200); }
.field input {
  width: 100%; padding: 14px 16px; border-radius: 14px; border: 1.5px solid var(--branco-15);
  background: rgba(0,0,0,.18); color: var(--branco); font-size: 1rem; font-family: var(--font-body);
  outline: none; transition: border-color .2s;
}
.field input:focus { border-color: var(--lilas); }
.field input::placeholder { color: var(--branco-40); }
.field .error { color: #FFC2C2; font-size: .85rem; margin-top: 6px; }
.auth__row { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 22px; font-size: .92rem; color: var(--branco-70); }
.auth__row label { display: inline-flex; align-items: center; gap: 8px; cursor: pointer; }
.auth__row input[type=checkbox] { accent-color: var(--lilas); width: 16px; height: 16px; }
.btn--block { width: 100%; }
.alert { border-radius: 14px; padding: 12px 16px; margin-bottom: 18px; font-size: .92rem; }
.alert--error { background: rgba(255,80,80,.18); border: 1.5px solid rgba(255,120,120,.5); }
.alert--success { background: rgba(120,255,180,.14); border: 1.5px solid rgba(120,255,180,.45); }

/* ---------- responsivo ---------- */
@media (max-width: 900px) {
  .hero__grid { grid-template-columns: 1fr; gap: 40px; }
  .hero { padding: 24px 0 56px; text-align: center; }
  .hero__lead { margin-inline: auto; }
  .hero__actions { justify-content: center; }
  .keycap { max-width: 340px; order: -1; }
  .pillars__grid { grid-template-columns: 1fr; }
}
@media (max-width: 520px) {
  body { font-size: 16px; }
  .container { width: calc(100% - 32px); }
  .site-header { padding: 20px 0; }
  .brand__name { font-size: 1.3rem; }
  .auth__card { padding: 32px 24px; }
}