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

/* CSS Variables */
:root {
  --bg-primary: #0a0a0f;
  --bg-secondary: #12121a;
  --bg-tertiary: #1a1a25;
  --bg-card: #14141e;
  --text-primary: #e8e8ed;
  --text-secondary: #9898a6;
  --text-muted: #5c5c6d;
  --accent-primary: #00d4aa;
  --accent-secondary: #00a888;
  --accent-glow: rgba(0, 212, 170, 0.15);
  --danger: #ff4757;
  --danger-glow: rgba(255, 71, 87, 0.15);
  --warning: #ffa502;
  --success: #2ed573;
  --border-color: #2a2a3a;
  --border-glow: rgba(0, 212, 170, 0.3);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* Base */
html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
}

/* Background Pattern */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: 
    radial-gradient(ellipse at top left, rgba(0, 212, 170, 0.05) 0%, transparent 50%),
    radial-gradient(ellipse at bottom right, rgba(0, 168, 136, 0.05) 0%, transparent 50%),
    linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
  pointer-events: none;
  z-index: -1;
}

/* Typography */
h1, h2, h3, h4 {
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

h1 { font-size: 2rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.25rem; }

code, .mono {
  font-family: 'JetBrains Mono', monospace;
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Header */
.header {
  background: rgba(10, 10, 15, 0.8);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--accent-primary);
  text-decoration: none;
}

.logo-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
}

.nav {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.nav-link:hover, .nav-link.active {
  color: var(--accent-primary);
  background: var(--accent-glow);
}

.user-info {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.user-badge {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: var(--bg-tertiary);
  border-radius: var(--radius-md);
  font-size: 0.875rem;
}

.user-badge .role {
  padding: 0.125rem 0.5rem;
  background: var(--accent-glow);
  color: var(--accent-primary);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-family: inherit;
  font-size: 0.9375rem;
  font-weight: 500;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  color: var(--bg-primary);
  box-shadow: 0 4px 15px var(--accent-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px var(--accent-glow);
}

.btn-secondary {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  border-color: var(--accent-primary);
  background: var(--accent-glow);
}

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

.btn-danger:hover {
  background: #e8414f;
  box-shadow: 0 4px 15px var(--danger-glow);
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
}

/* Cards */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  transition: var(--transition);
}

.card:hover {
  border-color: var(--border-glow);
  box-shadow: var(--shadow);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border-color);
}

.card-title {
  font-size: 1.125rem;
  font-weight: 600;
}

/* Forms */
.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  margin-bottom: 0.5rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.form-input {
  width: 100%;
  padding: 0.875rem 1rem;
  font-family: inherit;
  font-size: 1rem;
  color: var(--text-primary);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  transition: var(--transition);
}

.form-input:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.form-input::placeholder {
  color: var(--text-muted);
}

/* Instance Card */
.instance-card {
  background: linear-gradient(135deg, var(--bg-card) 0%, rgba(0, 212, 170, 0.02) 100%);
  border: 1px solid var(--border-glow);
  padding: 2rem;
}

.instance-url {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  background: var(--bg-tertiary);
  border-radius: var(--radius-md);
  margin: 1rem 0;
}

.instance-url a {
  color: var(--accent-primary);
  font-family: 'JetBrains Mono', monospace;
  font-size: 1.125rem;
  text-decoration: none;
}

.instance-url a:hover {
  text-decoration: underline;
}

.timer {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: var(--bg-tertiary);
  border-radius: var(--radius-md);
  font-family: 'JetBrains Mono', monospace;
  font-size: 1.25rem;
  color: var(--accent-primary);
}

.timer.warning {
  color: var(--warning);
}

.timer.danger {
  color: var(--danger);
}

/* Stats Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
}

.stat-card {
  padding: 1.25rem;
  text-align: center;
}

.stat-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent-primary);
  font-family: 'JetBrains Mono', monospace;
}

.stat-label {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-top: 0.25rem;
}

/* Table */
.table-container {
  overflow-x: auto;
}

.table {
  width: 100%;
  border-collapse: collapse;
}

.table th,
.table td {
  padding: 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

.table th {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  background: var(--bg-tertiary);
}

.table tbody tr:hover {
  background: var(--accent-glow);
}

/* Status Badges */
.status {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
}

.status-running {
  background: rgba(46, 213, 115, 0.15);
  color: var(--success);
}

.status-stopped {
  background: rgba(255, 71, 87, 0.15);
  color: var(--danger);
}

.status-active {
  background: rgba(0, 212, 170, 0.15);
  color: var(--accent-primary);
}

/* Alert Messages */
.alert {
  padding: 1rem 1.25rem;
  border-radius: var(--radius-md);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.alert-success {
  background: rgba(46, 213, 115, 0.1);
  border: 1px solid rgba(46, 213, 115, 0.3);
  color: var(--success);
}

.alert-error {
  background: rgba(255, 71, 87, 0.1);
  border: 1px solid rgba(255, 71, 87, 0.3);
  color: var(--danger);
}

.alert-info {
  background: var(--accent-glow);
  border: 1px solid var(--border-glow);
  color: var(--accent-primary);
}

/* Auth Pages */
.auth-container {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}

.auth-card {
  width: 100%;
  max-width: 420px;
  padding: 2.5rem;
}

.auth-title {
  text-align: center;
  margin-bottom: 2rem;
}

.auth-title h1 {
  margin-bottom: 0.5rem;
}

.auth-title p {
  color: var(--text-secondary);
}

.auth-footer {
  text-align: center;
  margin-top: 1.5rem;
  color: var(--text-secondary);
}

.auth-footer a {
  color: var(--accent-primary);
  text-decoration: none;
}

.auth-footer a:hover {
  text-decoration: underline;
}

/* Dashboard */
.dashboard {
  padding: 2rem 0;
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
}

.section-title {
  font-size: 1.25rem;
  font-weight: 600;
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: 3rem;
  color: var(--text-secondary);
}

.empty-state-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.empty-state h3 {
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

/* Loading */
.loading {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.spinner {
  width: 20px;
  height: 20px;
  border: 2px solid var(--border-color);
  border-top-color: var(--accent-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* File Upload */
.file-upload {
  border: 2px dashed var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2rem;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
}

.file-upload:hover {
  border-color: var(--accent-primary);
  background: var(--accent-glow);
}

.file-upload-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.file-upload input {
  display: none;
}

.file-upload.has-file {
  border-color: var(--success);
  background: rgba(46, 213, 115, 0.1);
}

/* Tabs */
.tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.5rem;
}

.tab {
  padding: 0.75rem 1.25rem;
  background: none;
  border: none;
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 0.9375rem;
  font-weight: 500;
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.tab:hover {
  color: var(--text-primary);
  background: var(--bg-tertiary);
}

.tab.active {
  color: var(--accent-primary);
  background: var(--accent-glow);
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
}

/* Responsive */
@media (max-width: 768px) {
  .header-inner {
    flex-wrap: wrap;
    gap: 1rem;
  }

  .nav {
    order: 3;
    width: 100%;
    justify-content: center;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .instance-url {
    flex-direction: column;
    align-items: stretch;
    text-align: center;
  }

  .table th,
  .table td {
    padding: 0.75rem 0.5rem;
    font-size: 0.875rem;
  }
}

/* Hidden */
.hidden {
  display: none !important;
}