/* ==========================================
   CyberLab — Stylesheet Principal
   Tema: Terminal Hacker Dark
   ========================================== */

:root {
  --bg-dark:    #0a0e1a;
  --bg-card:    #0f1626;
  --bg-sidebar: #0c1220;
  --bg-input:   #131c2e;
  --accent:     #00d4ff;
  --accent2:    #7c3aed;
  --accent3:    #10b981;
  --danger:     #ef4444;
  --warning:    #f59e0b;
  --text-main:  #e2e8f0;
  --text-muted: #64748b;
  --text-dim:   #334155;
  --border:     #1e2d4a;
  --border2:    #243352;
  --glow:       0 0 20px rgba(0, 212, 255, 0.15);
  --glow-strong:0 0 40px rgba(0, 212, 255, 0.3);
  --font-mono:  'Courier New', 'Consolas', monospace;
  --radius:     8px;
  --radius-lg:  12px;
  --transition: all 0.2s ease;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: var(--bg-dark);
  color: var(--text-main);
  font-size: 15px;
  line-height: 1.6;
  min-height: 100vh;
}

/* === SCROLLBAR === */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg-dark); }
::-webkit-scrollbar-thumb { background: var(--border2); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent); }

/* === TIPOGRAFIA === */
h1, h2, h3, h4, h5, h6 { color: var(--text-main); font-weight: 700; line-height: 1.3; }
h1 { font-size: 2rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.2rem; }
a { color: var(--accent); text-decoration: none; transition: var(--transition); }
a:hover { color: #fff; }

/* === LAYOUT === */
.wrapper { display: flex; min-height: 100vh; }

.sidebar {
  width: 260px;
  background: var(--bg-sidebar);
  border-right: 1px solid var(--border);
  position: fixed;
  top: 0; left: 0; bottom: 0;
  overflow-y: auto;
  z-index: 100;
  display: flex;
  flex-direction: column;
  transition: transform 0.3s ease;
}

.sidebar-logo {
  padding: 24px 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 12px;
}

.sidebar-logo .logo-icon {
  width: 36px; height: 36px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px;
  box-shadow: var(--glow);
}

.sidebar-logo .logo-text {
  font-size: 1.2rem;
  font-weight: 800;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-family: var(--font-mono);
}

.sidebar-nav { padding: 12px 0; flex: 1; }

.nav-section {
  padding: 16px 20px 4px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--text-muted);
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 20px;
  color: var(--text-muted);
  font-size: 14px;
  font-weight: 500;
  transition: var(--transition);
  position: relative;
  cursor: pointer;
}

.nav-item:hover {
  color: var(--text-main);
  background: rgba(0, 212, 255, 0.05);
}

.nav-item.active {
  color: var(--accent);
  background: rgba(0, 212, 255, 0.08);
}

.nav-item.active::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: var(--accent);
  border-radius: 0 3px 3px 0;
}

.nav-item .nav-icon { font-size: 16px; width: 20px; text-align: center; }
.nav-item .nav-badge {
  margin-left: auto;
  background: var(--accent);
  color: var(--bg-dark);
  font-size: 10px;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 10px;
}

.sidebar-footer {
  padding: 16px 20px;
  border-top: 1px solid var(--border);
}

.main-content {
  margin-left: 260px;
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.topbar {
  height: 60px;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 24px;
  gap: 16px;
  position: sticky;
  top: 0;
  z-index: 50;
}

.topbar-title { font-weight: 700; font-size: 1rem; flex: 1; }

.topbar-actions { display: flex; align-items: center; gap: 12px; }

.avatar {
  width: 34px; height: 34px;
  background: linear-gradient(135deg, var(--accent2), var(--accent));
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 13px;
  font-weight: 700;
  color: white;
  cursor: pointer;
}

.page-content { padding: 28px 28px; flex: 1; }

/* === CARDS === */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  transition: var(--transition);
}

.card:hover { border-color: var(--border2); }

.card-accent {
  border-top: 2px solid var(--accent);
  box-shadow: var(--glow);
}

/* === STAT CARDS === */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 16px; margin-bottom: 24px; }

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0; right: 0;
  width: 60px; height: 60px;
  border-radius: 0 0 0 60px;
  opacity: 0.15;
}

.stat-card.accent::before  { background: var(--accent); }
.stat-card.purple::before  { background: var(--accent2); }
.stat-card.green::before   { background: var(--accent3); }
.stat-card.warning::before { background: var(--warning); }

.stat-value { font-size: 2rem; font-weight: 800; font-family: var(--font-mono); margin: 4px 0; }
.stat-label { font-size: 12px; color: var(--text-muted); text-transform: uppercase; letter-spacing: 1px; }
.stat-icon { font-size: 24px; margin-bottom: 8px; }

/* === LAB CARDS === */
.labs-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 20px; }

.lab-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  cursor: pointer;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.lab-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: var(--glow);
}

.lab-card.completed {
  border-color: var(--accent3);
}

.lab-card.completed::after {
  content: '✓';
  position: absolute;
  top: 12px; right: 12px;
  width: 22px; height: 22px;
  background: var(--accent3);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 12px;
  color: white;
  font-weight: 700;
}

.lab-icon { font-size: 28px; margin-bottom: 10px; }
.lab-title { font-weight: 700; font-size: 1rem; margin-bottom: 6px; }
.lab-desc { font-size: 13px; color: var(--text-muted); line-height: 1.5; margin-bottom: 14px; }

.lab-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.lab-points {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--accent);
  margin-left: auto;
}

/* === BADGES === */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.5px;
}

.badge-success  { background: rgba(16, 185, 129, 0.15); color: var(--accent3); border: 1px solid rgba(16,185,129,0.3); }
.badge-warning  { background: rgba(245, 158, 11, 0.15); color: var(--warning); border: 1px solid rgba(245,158,11,0.3); }
.badge-danger   { background: rgba(239, 68, 68, 0.15);  color: var(--danger);  border: 1px solid rgba(239,68,68,0.3); }
.badge-dark     { background: rgba(100,100,120, 0.2);   color: #c4b5fd;        border: 1px solid rgba(100,100,120,0.4);}
.badge-primary  { background: rgba(0, 212, 255, 0.1);   color: var(--accent);  border: 1px solid rgba(0,212,255,0.3); }
.badge-secondary{ background: rgba(100,116,139, 0.15);  color: #94a3b8;        border: 1px solid rgba(100,116,139,0.3);}

/* === BOTÕES === */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
}

.btn-primary {
  background: var(--accent);
  color: var(--bg-dark);
}
.btn-primary:hover { background: #00b8d9; color: var(--bg-dark); transform: translateY(-1px); box-shadow: var(--glow-strong); }

.btn-outline {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--accent);
}
.btn-outline:hover { background: rgba(0, 212, 255, 0.1); }

.btn-danger { background: var(--danger); color: white; }
.btn-danger:hover { background: #dc2626; }

.btn-ghost { background: transparent; color: var(--text-muted); }
.btn-ghost:hover { color: var(--text-main); background: rgba(255,255,255,0.05); }

.btn-sm { padding: 6px 14px; font-size: 13px; }
.btn-lg { padding: 14px 28px; font-size: 16px; }

/* === FORMULÁRIOS === */
.form-group { margin-bottom: 18px; }

label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
select, textarea {
  width: 100%;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-main);
  padding: 10px 14px;
  font-size: 14px;
  font-family: inherit;
  transition: var(--transition);
  outline: none;
}

input:focus, select:focus, textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.1);
}

input::placeholder { color: var(--text-dim); }

/* Flag input especial */
.flag-input {
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: 1px;
}

/* === ALERTAS === */
.alert {
  padding: 14px 18px;
  border-radius: var(--radius);
  margin-bottom: 16px;
  border-left: 4px solid;
  font-size: 14px;
}

.alert-success { background: rgba(16,185,129,0.08); border-color: var(--accent3); color: #6ee7b7; }
.alert-danger  { background: rgba(239,68,68,0.08);  border-color: var(--danger);  color: #fca5a5; }
.alert-warning { background: rgba(245,158,11,0.08); border-color: var(--warning); color: #fcd34d; }
.alert-info    { background: rgba(0,212,255,0.08);  border-color: var(--accent);  color: var(--accent); }

/* === TABELAS === */
table { width: 100%; border-collapse: collapse; }
thead th {
  text-align: left;
  padding: 12px 16px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
}
tbody td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
}
tbody tr:hover { background: rgba(255,255,255,0.02); }

/* === TERMINAL === */
.terminal {
  background: #000;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.7;
  color: var(--accent3);
  position: relative;
  overflow: auto;
  max-height: 400px;
}

.terminal::before {
  content: '$ ';
  color: var(--accent);
}

.terminal-header {
  background: #1a1a2e;
  border-bottom: 1px solid var(--border);
  padding: 10px 16px;
  display: flex;
  align-items: center;
  gap: 8px;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.terminal-dot { width: 12px; height: 12px; border-radius: 50%; }
.terminal-dot.red    { background: #ff5f56; }
.terminal-dot.yellow { background: #ffbd2e; }
.terminal-dot.green  { background: #27c93f; }

/* === PROGRESS === */
.progress-bar {
  height: 6px;
  background: var(--border);
  border-radius: 3px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent2), var(--accent));
  border-radius: 3px;
  transition: width 0.5s ease;
}

/* === LEADERBOARD === */
.leaderboard-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
}

.rank-number {
  width: 30px;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1rem;
  color: var(--text-muted);
  text-align: center;
}

.rank-number.top1 { color: #ffd700; font-size: 1.2rem; }
.rank-number.top2 { color: #c0c0c0; }
.rank-number.top3 { color: #cd7f32; }

/* === RANK BADGES === */
.rank-gray   { color: #94a3b8; }
.rank-green  { color: var(--accent3); }
.rank-blue   { color: var(--accent); }
.rank-purple { color: #a78bfa; }
.rank-orange { color: var(--warning); }
.rank-red    { color: var(--danger); }
.rank-black  { color: #f472b6; }

/* === UTILITÁRIOS === */
.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.gap-4 { gap: 16px; }
.mb-1 { margin-bottom: 4px; }
.mb-2 { margin-bottom: 8px; }
.mb-3 { margin-bottom: 16px; }
.mb-4 { margin-bottom: 24px; }
.mt-3 { margin-top: 16px; }
.text-muted { color: var(--text-muted); font-size: 13px; }
.text-accent { color: var(--accent); }
.text-success { color: var(--accent3); }
.text-danger  { color: var(--danger); }
.text-warning { color: var(--warning); }
.font-mono { font-family: var(--font-mono); }
.font-bold { font-weight: 700; }
.text-sm { font-size: 13px; }
.text-xs { font-size: 11px; }
.w-full { width: 100%; }
.hidden { display: none; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 20px; }

/* === PÁGINA AUTH === */
.auth-page {
  min-height: 100vh;
  background: var(--bg-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background-image: radial-gradient(circle at 20% 50%, rgba(0,212,255,0.03) 0%, transparent 50%),
                    radial-gradient(circle at 80% 20%, rgba(124,58,237,0.03) 0%, transparent 50%);
}

.auth-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px;
  width: 100%;
  max-width: 420px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}

.auth-logo {
  text-align: center;
  margin-bottom: 32px;
}

.auth-logo .logo-big {
  font-size: 2rem;
  font-weight: 800;
  font-family: var(--font-mono);
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* === LOADING / SPINNER === */
.spinner {
  width: 20px; height: 20px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }
.fade-in { animation: fadeIn 0.3s ease; }

/* === RESPONSIVO === */
.hamburger {
  display: none;
  background: none;
  border: none;
  color: var(--text-main);
  font-size: 20px;
  cursor: pointer;
  padding: 8px;
}

@media (max-width: 768px) {
  .hamburger { display: block; }
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); }
  .main-content { margin-left: 0; }
  .page-content { padding: 16px; }
  .labs-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .auth-card { padding: 28px 20px; }
}