@import url('https://fonts.googleapis.com/css2?family=Exo+2:wght@400;500;600;700;800&family=Russo+One&display=swap');

:root {
  --bg-void: #000000;
  --bg-deep: #07080c;
  --panel-bg: #0c0e14;
  --panel-elevated: #12151e;
  --border-soft: rgba(255, 215, 0, 0.18);
  --border-strong: rgba(255, 215, 0, 0.45);
  --gold: #ffd700;
  --gold-soft: #f5c518;
  --orange: #ff8c00;
  --cyan: #22d3ee;
  --blue-depth: #1e5bb8;
  --blue-shadow: #0b3d91;
  --text: #f4f4f5;
  --text-muted: #a1a1aa;
  --accent-primary: #ffd700;
  --accent-secondary: #22d3ee;
  --accent-gold: #ffd700;
}

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

html {
  background: var(--bg-void);
}

body {
  font-family: 'Exo 2', system-ui, sans-serif;
  background:
    radial-gradient(ellipse 80% 50% at 50% -10%, rgba(255, 140, 0, 0.14), transparent 55%),
    radial-gradient(ellipse 60% 40% at 100% 0%, rgba(30, 91, 184, 0.18), transparent 50%),
    radial-gradient(ellipse 50% 35% at 0% 100%, rgba(34, 211, 238, 0.08), transparent 45%),
    var(--bg-deep);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, .brand-font {
  font-family: 'Russo One', 'Exo 2', sans-serif;
  letter-spacing: 0.02em;
}

.brand-title {
  font-family: 'Russo One', sans-serif;
  background: linear-gradient(180deg, #ff8c00 0%, #ffd700 55%, #22d3ee 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  text-shadow: none;
  filter: drop-shadow(2px 3px 0 rgba(11, 61, 145, 0.85));
}

.brand-logo {
  display: block;
  object-fit: contain;
  background: #000;
}

.brand-logo--header {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  border: 2px solid var(--gold);
  box-shadow: 0 0 0 3px rgba(255, 215, 0, 0.15), 0 8px 24px rgba(255, 140, 0, 0.25);
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.35s ease;
}

.brand-logo--header:hover {
  transform: scale(1.06) rotate(-3deg);
  box-shadow: 0 0 0 4px rgba(255, 215, 0, 0.28), 0 12px 28px rgba(34, 211, 238, 0.2);
}

.brand-logo--login {
  width: min(220px, 58vw);
  height: auto;
  margin: 0 auto 8px;
  animation: logoPulseIn 0.7s cubic-bezier(0.16, 1, 0.3, 1) both;
}

@keyframes logoPulseIn {
  from { opacity: 0; transform: scale(0.88) translateY(12px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

@keyframes goldShimmer {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

.glass-panel {
  background: rgba(12, 14, 20, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-soft);
}

.glass-card {
  background: rgba(18, 21, 30, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 215, 0, 0.12);
  transition: border-color 0.25s ease, transform 0.25s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.25s ease;
}

.glass-card:hover {
  border-color: rgba(255, 215, 0, 0.4);
  transform: translateY(-2px);
  box-shadow: 0 12px 28px -12px rgba(255, 140, 0, 0.35);
}

::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: #050505; }
::-webkit-scrollbar-thumb { background: #3f3f46; border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--gold-soft); }

@keyframes fadeIn {
  from { opacity: 0; transform: scale(0.98); }
  to { opacity: 1; transform: scale(1); }
}

.animate-fadeIn {
  animation: fadeIn 0.25s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.bg-gradient-jaspion {
  background: linear-gradient(135deg, #ff8c00 0%, #ffd700 50%, #1e5bb8 100%);
}

.bg-gradient-gold {
  background: linear-gradient(135deg, #ff8c00 0%, #ffd700 100%);
}

.btn-jaspion {
  background: linear-gradient(135deg, #ff8c00 0%, #ffd700 60%, #f5c518 100%);
  color: #111;
  font-weight: 800;
  border: none;
  box-shadow: 0 4px 0 #0b3d91, 0 8px 20px rgba(255, 140, 0, 0.35);
  transition: transform 0.15s ease, box-shadow 0.15s ease, filter 0.15s ease;
}

.btn-jaspion:hover {
  filter: brightness(1.05);
  transform: translateY(-1px);
  box-shadow: 0 5px 0 #0b3d91, 0 12px 24px rgba(34, 211, 238, 0.25);
}

.btn-jaspion:active {
  transform: translateY(2px);
  box-shadow: 0 2px 0 #0b3d91;
}

.badge-professor {
  background: rgba(255, 140, 0, 0.15);
  color: #ffd700;
  border: 1px solid rgba(255, 215, 0, 0.35);
}

.badge-aluno {
  background: rgba(34, 211, 238, 0.12);
  color: #67e8f9;
  border: 1px solid rgba(34, 211, 238, 0.35);
}

.site-header {
  background: rgba(0, 0, 0, 0.82);
  border-bottom: 1px solid var(--border-soft);
  backdrop-filter: blur(14px);
}

.site-nav {
  background: rgba(0, 0, 0, 0.65);
  border-bottom: 1px solid rgba(255, 215, 0, 0.1);
}

.nav-btn.active,
.nav-btn.bg-indigo-600 {
  background: linear-gradient(135deg, #ff8c00, #ffd700) !important;
  color: #111 !important;
  box-shadow: 0 2px 0 #0b3d91;
}

.login-shell {
  background:
    radial-gradient(ellipse 70% 45% at 50% 15%, rgba(255, 215, 0, 0.12), transparent 55%),
    radial-gradient(ellipse 50% 40% at 80% 90%, rgba(30, 91, 184, 0.2), transparent 50%),
    #000;
}

.login-panel {
  background: linear-gradient(160deg, rgba(18, 21, 30, 0.98), rgba(0, 0, 0, 0.96));
  border: 1px solid rgba(255, 215, 0, 0.28);
  box-shadow: 0 0 0 1px rgba(30, 91, 184, 0.25), 0 28px 60px rgba(0, 0, 0, 0.75);
}

.focus-gold:focus {
  outline: none;
  border-color: var(--gold) !important;
  box-shadow: 0 0 0 3px rgba(255, 215, 0, 0.2);
}

.bottom-nav {
  background: rgba(0, 0, 0, 0.92) !important;
  border-top: 1px solid rgba(255, 215, 0, 0.2) !important;
}