/* ═══════════════════════════════════════════════════════════════
   AUTH PAGES — Login, Cadastro, FAQ, Vincular
   Premium Dark Theme v3.0
   ═══════════════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --accent-light: rgba(59,130,246,0.10);
  --accent-glow: rgba(59,130,246,0.06);
  --bg: #09090b;
  --bg-card: #111113;
  --bg-elevated: #1c1c1f;
  --bg-input: #0e0e10;
  --border: rgba(255,255,255,0.06);
  --border-focus: rgba(59,130,246,0.5);
  --text-primary: #fafafa;
  --text-secondary: #a1a1aa;
  --text-muted: #52525b;
  --danger: #ef4444;
  --success: #10b981;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 18px;
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  --ease: cubic-bezier(0.16,1,0.3,1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  min-height: 100vh;
  background: var(--bg);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  display: flex; align-items: center; justify-content: center;
  padding: 24px;
  position: relative; overflow-x: hidden; overflow-y: auto;
}

/* ── Animated background ── */
body::before {
  content: '';
  position: fixed; inset: 0;
  background:
    radial-gradient(ellipse 500px 500px at 20% 30%, rgba(59,130,246,0.05) 0%, transparent 70%),
    radial-gradient(ellipse 400px 400px at 80% 70%, rgba(16,185,129,0.03) 0%, transparent 70%);
  animation: bgShift 20s ease-in-out infinite alternate;
  pointer-events: none; z-index: 0;
}
@keyframes bgShift {
  0% { transform: translate(0, 0); }
  100% { transform: translate(-20px, 10px); }
}

/* Noise overlay */
body::after {
  content: '';
  position: fixed; inset: 0;
  background: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.015'/%3E%3C/svg%3E");
  pointer-events: none; z-index: 0;
}

a { color: var(--accent); text-decoration: none; transition: color 150ms var(--ease); }
a:hover { color: var(--accent-hover); }
code { background: var(--accent-light); color: var(--accent); padding: 2px 7px; border-radius: 5px; font-family: var(--font-mono); font-size: 0.88em; }

/* ══════════════════════════════════════════════════════════════
   CARD CONTAINER
   ══════════════════════════════════════════════════════════════ */
.gs-animate-in { position: relative; z-index: 1; animation: cardIn 600ms var(--ease) both; }
@keyframes cardIn {
  from { opacity: 0; transform: translateY(16px) scale(0.98); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.gs-card {
  width: 100%; max-width: 420px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: 0 10px 40px rgba(0,0,0,0.4), 0 0 0 1px rgba(255,255,255,0.02) inset;
  position: relative;
}

/* Top gradient line */
.gs-card::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, var(--accent), #10b981, var(--accent));
  background-size: 200% 100%;
  animation: gradientShift 4s ease infinite;
}
@keyframes gradientShift {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

.gs-card-header {
  padding: 32px 32px 20px;
  text-align: center;
}
.gs-card-header .icon {
  font-size: 2.2rem;
  display: block;
  margin-bottom: 12px;
}
.gs-card-header h1 {
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 4px;
}
.gs-card-header p {
  color: var(--text-secondary);
  font-size: 0.88rem;
  margin: 0;
}

.gs-card-body {
  padding: 0 32px 32px;
}

/* ── Form Elements ── */
.gs-form-group { margin-bottom: 16px; }
.gs-label {
  display: block;
  font-weight: 600;
  font-size: 0.82rem;
  color: var(--text-secondary);
  margin-bottom: 6px;
}
.gs-input {
  width: 100%;
  padding: 11px 14px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.9rem;
  transition: all 200ms var(--ease);
  outline: none;
}
.gs-input:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px var(--accent-glow);
}
.gs-input::placeholder { color: var(--text-muted); }

select.gs-input {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg fill='%2371717a' viewBox='0 0 20 20' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M5.293 7.293a1 1 0 011.414 0L10 10.586l3.293-3.293a1 1 0 111.414 1.414l-4 4a1 1 0 01-1.414 0l-4-4a1 1 0 010-1.414z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 16px;
  padding-right: 40px;
}

/* ── Buttons ── */
.gs-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 11px 20px;
  font-family: var(--font-sans);
  font-weight: 600; font-size: 0.88rem;
  border: none; border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 200ms var(--ease);
  text-decoration: none;
}
.gs-btn-primary {
  background: var(--accent); color: white;
}
.gs-btn-primary:hover {
  background: var(--accent-hover); color: white;
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(59,130,246,0.3);
}
.gs-btn-outline {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border);
}
.gs-btn-outline:hover {
  border-color: var(--accent); color: var(--accent);
  background: var(--accent-glow);
}
.gs-btn-block { width: 100%; }

/* ── Footer / Auth Links ── */
.gs-auth-footer {
  text-align: center;
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.88rem;
}
.gs-auth-footer a { font-weight: 600; }

/* ── Messages ── */
.gs-alert {
  padding: 12px 16px;
  border-radius: var(--radius-md);
  font-size: 0.88rem;
  margin-bottom: 16px;
  font-weight: 500;
}
.gs-alert-danger { background: rgba(239,68,68,0.1); color: var(--danger); border: 1px solid rgba(239,68,68,0.15); }
.gs-alert-success { background: rgba(16,185,129,0.1); color: var(--success); border: 1px solid rgba(16,185,129,0.15); }

/* ══════════════════════════════════════════════════════════════
   FAQ PAGE (wider layout)
   ══════════════════════════════════════════════════════════════ */
.faq-page { display: flex; align-items: flex-start; justify-content: center; min-height: 100vh; }
.faq-page .gs-card { max-width: 760px; }

.faq-section { margin-top: 24px; }
.faq-section-title {
  font-size: 0.95rem; font-weight: 700; color: var(--accent);
  margin-bottom: 12px; display: flex; align-items: center; gap: 8px;
}
.faq-item {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 8px; overflow: hidden;
}
.faq-item summary {
  padding: 12px 18px; font-weight: 600; cursor: pointer;
  color: var(--text-primary); font-size: 0.9rem;
  display: flex; align-items: center; gap: 10px;
  transition: background 200ms var(--ease); list-style: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary:hover { background: var(--accent-glow); }
.faq-item summary i { width: 18px; text-align: center; color: var(--accent); font-size: 0.85rem; }
.faq-item[open] summary { border-bottom: 1px solid var(--border); }
.faq-answer {
  padding: 14px 18px; font-size: 0.88rem; line-height: 1.7;
  color: var(--text-secondary);
}
.faq-answer p { margin-bottom: 8px; }
.faq-answer .highlight {
  background: var(--accent-glow); border: 1px solid rgba(59,130,246,0.12);
  border-radius: var(--radius-md); padding: 12px 16px; margin: 10px 0;
}
.faq-answer .warning {
  background: rgba(239,68,68,0.05); border: 1px solid rgba(239,68,68,0.12);
  border-radius: var(--radius-md); padding: 12px 16px; margin: 10px 0;
}
.faq-answer .step { display: flex; gap: 12px; margin-bottom: 10px; align-items: flex-start; }
.faq-answer .step-num {
  background: var(--accent); color: white; border-radius: 50%;
  width: 22px; height: 22px; display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 0.75rem; flex-shrink: 0; margin-top: 2px;
}
.info-banner {
  background: var(--accent-glow); border: 1px solid rgba(59,130,246,0.15);
  border-radius: var(--radius-md); padding: 16px 20px; margin-bottom: 20px; text-align: center;
}
.info-banner .title { font-weight: 700; font-size: 0.95rem; color: var(--accent); margin-bottom: 4px; }
.info-banner .subtitle { font-size: 0.85rem; color: var(--text-secondary); }

/* ══════════════════════════════════════════════════════════════
   RESPONSIVE
   ══════════════════════════════════════════════════════════════ */
@media (max-width: 480px) {
  body { padding: 12px; }
  .gs-card-header { padding: 24px 20px 16px; }
  .gs-card-body { padding: 0 20px 24px; }
  .gs-card-header h1 { font-size: 1.2rem; }
}