/* ==========================================================================
   commitcard — design tokens & shared components
   Usado tanto pela landing page quanto pelo app (portfólio).
   ========================================================================== */

:root{
  --bg: #0b0d12;
  --bg-elevated: #12151d;
  --bg-card: #12151d;
  --bg-input: #0d1017;
  --border: #232733;
  --border-strong: #333a4a;
  --text: #e9ebf1;
  --text-dim: #9aa1b2;
  --text-faint: #5b6272;
  --accent: #34d399;
  --accent-strong: #10b981;
  --accent-contrast: #04150d;
  --accent-soft: rgba(52,211,153,0.12);
  --violet: #a78bfa;
  --amber: #f0b83f;
  --danger: #f87171;
  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 20px;
  --shadow: 0 1px 2px rgba(0,0,0,.5), 0 12px 32px -12px rgba(0,0,0,.6);
  --mono: 'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  --sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --display: 'Sora', var(--sans);
  color-scheme: dark;
}

html[data-theme="light"]{
  --bg: #f6f7f9;
  --bg-elevated: #ffffff;
  --bg-card: #ffffff;
  --bg-input: #f0f1f4;
  --border: #e3e6ec;
  --border-strong: #cdd2dc;
  --text: #171922;
  --text-dim: #5b6272;
  --text-faint: #8990a1;
  --accent: #059669;
  --accent-strong: #047a57;
  --accent-contrast: #ffffff;
  --accent-soft: rgba(5,150,105,0.08);
  --violet: #7c5cf0;
  --amber: #b3760a;
  --danger: #dc2626;
  --shadow: 0 1px 2px rgba(20,23,31,.04), 0 12px 32px -12px rgba(20,23,31,.14);
  color-scheme: light;
}

*{ box-sizing: border-box; }

body{
  margin:0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  line-height: 1.5;
  min-height: 100vh;
  overflow-x: hidden;
  transition: background .2s ease, color .2s ease;
}

a{ color: var(--accent); text-decoration: none; }
a:hover{ text-decoration: underline; }
button, input, textarea{ font-family: inherit; }

:focus-visible{
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}

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

img{ max-width: 100%; }

/* ---------- Navbar ---------- */
.navbar{
  position: sticky;
  top: 0;
  z-index: 40;
  display:flex;
  align-items:center;
  justify-content: space-between;
  padding: 14px 24px;
  background: var(--bg);
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.nav-left{ display:flex; align-items:center; gap: 36px; }
.brand{ display:flex; align-items:center; gap: 10px; }
.brand svg{ display:block; }
.brand-name{
  font-family: var(--display);
  font-weight: 700;
  font-size: 17px;
  letter-spacing: -0.01em;
  color: var(--text);
}
.nav-links{
  display:flex;
  gap: 26px;
  list-style: none;
  margin:0; padding:0;
}
.nav-links a{
  color: var(--text-dim);
  font-size: 14px;
  font-weight: 500;
}
.nav-links a:hover{ color: var(--text); text-decoration: none; }
.nav-right{ display:flex; align-items:center; gap: 10px; }

.theme-toggle{
  width: 38px; height: 38px;
  border-radius: 50%;
  border: 1px solid var(--border-strong);
  background: var(--bg-elevated);
  color: var(--text-dim);
  display:flex; align-items:center; justify-content:center;
  cursor: pointer;
  flex-shrink: 0;
}
.theme-toggle:hover{ color: var(--text); border-color: var(--accent); }
.theme-toggle svg{ width: 17px; height:17px; }
.theme-toggle .sun{ display: none; }
html[data-theme="light"] .theme-toggle .moon{ display: none; }
html[data-theme="light"] .theme-toggle .sun{ display: block; }

@media (max-width: 760px){
  .nav-links{ display:none; }
}

.auth-cta-short{ display:none; }

@media (max-width: 480px){
  .navbar{ padding: 12px 16px; }
  .nav-left{ gap: 10px; }
  .auth-cta-full{ display:none; }
  .auth-cta-short{ display:inline; }
}

/* ---------- Buttons ---------- */
.btn{
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong);
  background: var(--bg-elevated);
  color: var(--text);
  padding: 11px 18px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: border-color .15s ease, background .15s ease, transform .1s ease;
  white-space: nowrap;
}
.btn:hover{ border-color: var(--accent); }
.btn:active{ transform: scale(.98); }
.btn:disabled{ opacity: .5; cursor: default; transform: none; }
.btn.primary{
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-contrast);
}
.btn.primary:hover{ background: var(--accent-strong); border-color: var(--accent-strong); }
.btn.ghost{ background: transparent; border-color: transparent; padding-left: 10px; padding-right: 10px; }
.btn.ghost:hover{ background: var(--bg-input); border-color: transparent; }
.btn.sm{ padding: 7px 12px; font-size: 13px; }
.btn.lg{ padding: 14px 26px; font-size: 15.5px; }
.btn-row{ display:flex; gap: 10px; flex-wrap: wrap; }

/* ---------- Section label ---------- */
.section-label{
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--text-faint);
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 46px 0 18px;
}
.section-label::after{
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

/* ---------- States ---------- */
.loading-line{
  font-size: 14px;
  color: var(--text-dim);
  display:flex;
  align-items:center;
  gap: 10px;
}
.spinner{
  width: 14px; height:14px;
  border-radius: 50%;
  border: 2px solid var(--border-strong);
  border-top-color: var(--accent);
  animation: spin .7s linear infinite;
}
@keyframes spin{ to{ transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce){ .spinner{ animation: spin 1.6s linear infinite; } }

.error-box{
  font-size: 13.5px;
  border-left: 3px solid var(--danger);
  background: color-mix(in srgb, var(--danger) 10%, transparent);
  padding: 12px 14px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--text);
}

/* ---------- Auth ---------- */
#auth-slot{ display:flex; align-items:center; }
.auth-menu{ position: relative; }
.auth-trigger{
  display:flex; align-items:center; gap: 8px;
  background: var(--bg-elevated); border: 1px solid var(--border-strong);
  border-radius: 999px; padding: 4px 12px 4px 4px; cursor: pointer; color: var(--text);
}
.auth-trigger:hover{ border-color: var(--accent); }
.auth-avatar{ width: 26px; height: 26px; border-radius: 50%; object-fit: cover; display:block; background: var(--bg-input); }
.auth-name{ font-family: var(--mono); font-size: 12.5px; font-weight: 600; }

@media (max-width: 480px){
  .auth-name{ display:none; }
  .auth-trigger{ padding: 3px; gap: 0; }
}
.auth-dropdown{
  position: absolute; top: calc(100% + 8px); right: 0;
  background: var(--bg-elevated); border: 1px solid var(--border);
  border-radius: var(--radius-sm); box-shadow: var(--shadow);
  min-width: 160px; padding: 6px; display:flex; flex-direction: column; z-index: 60;
}
.auth-dropdown[hidden]{ display:none; }
.auth-dropdown a{
  padding: 8px 10px; border-radius: 6px; font-size: 13.5px; color: var(--text);
}
.auth-dropdown a:hover{ background: var(--bg-input); text-decoration: none; }

/* ---------- Footer ---------- */
.site-footer{
  border-top: 1px solid var(--border);
  padding: 40px 24px;
  margin-top: 80px;
}
.site-footer-inner{
  max-width: 1080px;
  margin: 0 auto;
  display:flex;
  align-items:center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.site-footer .brand-name{ font-size: 15px; }
.footer-tagline{
  font-size: 13px;
  color: var(--text-faint);
  font-family: var(--mono);
}