/* ============ Design System ============ */
:root {
  --p: #8800ff;
  --p-600: #6f00d1;
  --p-300: #b366ff;

  --sp-1: 8px;
  --sp-2: 16px;
  --sp-3: 24px;
  --sp-4: 32px;
  --sp-5: 48px;
  --sp-6: 64px;

  --fs-xs: 0.75rem;
  --fs-sm: 0.875rem;
  --fs-md: 1rem;
  --fs-lg: 1.5rem;
  --fs-xl: 2rem;

  --radius: 14px;
  --container: 1160px;
}

/* Temas */
:root[data-theme="light"] {
  --bg: #ffffff;
  --fg: #000000;
  --muted: #333333;
  --card: #f7f7f7;
  --card-b: #e5e5e5;
  --chip: #efefff;
  --chip-b: #d9ccff;
  --link: #4b00cc;
  --focus: #6a0dad;
}

:root[data-theme="dark"] {
  --bg: #0c0c0c;
  --fg: #f2f2f2;
  --muted: #cfcfcf;
  --card: #121212;
  --card-b: #262626;
  --chip: #1a0030;
  --chip-b: #3a2a55;
  --link: #b366ff;
  --focus: #8800ff;
}

:root[data-theme="contrast"] {
  --bg: #000000;
  --fg: #ffffff;
  --muted: #e8e8e8;
  --card: #0b0b0b;
  --card-b: #262626;
  --chip: #000000;
  --chip-b: #b366ff;
  --link: #ffffff;
  --focus: #ffffff;
}

/* ============ Base ============ */
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: var(--bg);
  color: var(--fg);
  line-height: 1.6;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--link); }

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--sp-2);
}

.skip-link {
  position: absolute;
  left: -9999px; top: auto;
  background: var(--bg); color: var(--fg);
  padding: 8px 12px; border-radius: 8px;
}
.skip-link:focus { left: 12px; top: 12px; z-index: 9999; }

/* ============ Header / Nav ============ */
header, footer {
  background: var(--bg);
  border-bottom: 2px solid var(--card-b);
}
header .container, footer .container { padding: var(--sp-2) 0; }

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.brand {
  display: flex; align-items: center; gap: 10px;
  text-decoration: none; font-weight: 800; color: var(--fg);
}
.brand img { width: 42px; height: 42px; }

.controls { display: flex; gap: 10px; align-items: center; }
.nav-toggle {
  display: none;
  background: transparent;
  color: var(--fg);
  border: 2px solid var(--card-b);
  border-radius: 10px;
  padding: 8px 12px;
}

#primary-nav { list-style: none; display: flex; gap: 18px; margin: 0; padding: 0; }
#primary-nav a { text-decoration: none; color: var(--fg); padding: 8px 10px; border-radius: 10px; }
#primary-nav a:hover, #primary-nav a:focus { background: var(--card); outline: 2px solid transparent; }

.nav-item { position: relative; }
.submenu {
  display: none;
  position: absolute;
  background: var(--card);
  border: 2px solid var(--card-b);
  border-radius: 12px;
  min-width: 220px;
  padding: 8px;
  z-index: 20;
}
.nav-item:focus-within .submenu,
.nav-item:hover .submenu { display: block; }

@media (max-width: 768px) {
  .nav-toggle { display: block; }
  #primary-nav {
    display: none;
    position: absolute;
    right: 12px; top: 72px;
    background: var(--card);
    border: 2px solid var(--card-b);
    border-radius: 12px;
    padding: 12px;
    flex-direction: column;
    width: min(85vw, 320px);
  }
  #primary-nav.active { display: flex; }
}

/* ============ Hero ============ */
.hero { position: relative; }
.hero .overlay {
  position: absolute; inset: 0;
  display: grid; place-items: center;
  text-align: center; color: #fff;
  padding: var(--sp-4);
}
.hero h1 { font-size: clamp(1.6rem, 3.2vw, 3rem); margin: 0 0 var(--sp-2); }
.hero p  { margin: 0 0 var(--sp-3); }

/* ============ Botões ============ */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  cursor: pointer; padding: 12px 18px; border-radius: 14px;
  border: 3px solid var(--fg); font-weight: 800; text-decoration: none;
  transition: transform .08s, background .2s, color .2s;
}
.btn:active { transform: translateY(1px); }
.btn-ghost { background: transparent; color: var(--fg); }
.btn-ghost:hover { background: var(--card); }
.btn-primary { background: var(--p); color: #fff; border-color: var(--p); }
.btn-primary:hover { background: var(--p-600); }
.btn-outline { background: transparent; color: var(--fg); border-color: var(--fg); }
.btn-outline:hover { background: var(--fg); color: var(--bg); }

/* ============ Grid utilitário ============ */
.grid-12 { display: grid; gap: var(--sp-3); grid-template-columns: repeat(12, 1fr); }
.col-12 { grid-column: span 12; }
.col-6  { grid-column: span 6; }
.col-4  { grid-column: span 4; }
@media (max-width: 1024px) { .lg-col-12 { grid-column: span 12; } }
@media (max-width: 768px)  { .md-col-12 { grid-column: span 12; } }

/* ============ Cards ============ */
.cards { margin: var(--sp-5) 0; }
.card {
  background: var(--card);
  border: 2px solid var(--card-b);
  border-radius: var(--radius);
  padding: var(--sp-3);
  box-shadow: 0 8px 26px rgba(0,0,0,.2);
}
.card h3 { margin: 0 0 var(--sp-1); }
.badges { display: flex; gap: 8px; flex-wrap: wrap; margin-top: var(--sp-1); }
.badge {
  display: inline-block; padding: 6px 10px; border-radius: 999px;
  border: 2px solid var(--chip-b); background: var(--chip); color: var(--fg);
  font-size: var(--fs-sm);
}
.badge.p {
  border-color: var(--p-300);
  background: rgba(136,0,255,.08);
}

/* ============ Toast / Modal ============ */
.toast {
  position: fixed; right: 16px; bottom: 16px;
  background: var(--card); color: var(--fg);
  padding: 12px 16px;
  border-radius: 12px; border: 2px solid var(--card-b);
  box-shadow: 0 8px 26px rgba(0,0,0,.3);
  opacity: 0; transform: translateY(8px);
  transition: opacity .2s, transform .2s;
}
.toast.show { opacity: 1; transform: translateY(0); }

.modal-backdrop {
  position: fixed; inset: 0; background: rgba(0,0,0,.7);
  display: none; place-items: center; padding: 20px;
}
.modal-backdrop.show { display: grid; }
.modal {
  background: var(--card); color: var(--fg);
  border: 2px solid var(--card-b); border-radius: 16px;
  width: min(640px, 95vw); padding: var(--sp-3);
  box-shadow: 0 8px 26px rgba(0,0,0,.35);
}
.modal-header {
  display: flex; justify-content: space-between; align-items: center; gap: 8px;
  margin-bottom: var(--sp-2);
}
.modal-close {
  background: transparent; color: var(--fg);
  border: 2px solid var(--card-b); border-radius: 10px;
  padding: 8px 12px; cursor: pointer;
}
.modal-close:hover { background: var(--card); }

/* ============ Formulários ============ */
form { display: grid; gap: var(--sp-2); max-width: 720px; margin: 0 auto; }
fieldset { border: 2px solid var(--card-b); border-radius: 12px; padding: var(--sp-3); }
legend { padding: 0 var(--sp-1); font-weight: 800; color: var(--fg); }
label { font-weight: 700; margin-top: 8px; color: var(--fg); }
input, select, textarea {
  width: 100%; padding: 12px 14px; border-radius: 10px;
  border: 2px solid var(--card-b); background: var(--bg); color: var(--fg);
  font-size: var(--fs-md);
}
input::placeholder { color: #888; }
input:focus, select:focus, textarea:focus {
  outline: 3px solid var(--focus); border-color: var(--focus);
}
.input-error   { border-color: #ff3b3b !important; outline-color: #ff3b3b !important; }
.input-success { border-color: #00b15c !important; outline-color: #00b15c !important; }
.error-text { color: #ff3b3b; font-size: var(--fs-sm); }

/* ============ Footer ============ */
footer p { margin: 0; text-align: center; color: var(--muted); }