/* ===== Modern Professional Theme ===== */

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

:root {
  /* Primary Colors - Modern Blue Palette */
  --primary-blue: #3b82f6;
  --primary-blue-dark: #2563eb;
  --primary-blue-light: #60a5fa;
  --accent-purple: #8b5cf6;
  --accent-purple-light: #a78bfa;

  /* Background Colors */
  --bg-dark: #0f172a;
  --bg-darker: #020617;
  --bg-card: #1e293b;
  --bg-card-hover: #334155;
  --bg-subtle: rgba(30, 41, 59, 0.5);

  /* Text Colors */
  --text-primary: #f1f5f9;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  --text-disabled: #64748b;

  /* Border Colors */
  --border-subtle: rgba(148, 163, 184, 0.2);
  --border-medium: rgba(148, 163, 184, 0.3);
  --border-strong: rgba(148, 163, 184, 0.5);

  /* Status Colors */
  --success: #10b981;
  --success-bg: rgba(16, 185, 129, 0.1);
  --warning: #f59e0b;
  --warning-bg: rgba(245, 158, 11, 0.1);
  --error: #ef4444;
  --error-bg: rgba(239, 68, 68, 0.1);
  --info: #3b82f6;
  --info-bg: rgba(59, 130, 246, 0.1);

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;

  /* Border Radius */
  --radius-sm: 0.5rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-xl: 1.25rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.15);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.2);
  --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.25);
  --shadow-glow-blue: 0 0 24px rgba(59, 130, 246, 0.3);
  --shadow-glow-purple: 0 0 24px rgba(139, 92, 246, 0.3);

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);
}

html {
  overflow-x: hidden;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background: radial-gradient(circle at top left, rgba(37, 99, 235, 0.15), transparent 40%),
              radial-gradient(circle at bottom right, rgba(139, 92, 246, 0.2), transparent 45%),
              var(--bg-dark);
  color: var(--text-primary);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: var(--space-md);
  color: var(--text-primary);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

p {
  margin-bottom: var(--space-md);
  color: var(--text-secondary);
}

a {
  color: var(--primary-blue-light);
  text-decoration: none;
  transition: all var(--transition-base);
}

a:hover {
  color: var(--accent-purple-light);
}

.gradient-text {
  background: linear-gradient(135deg, #f1f5f9 0%, #8b5cf6 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ===== Layout Helpers ===== */

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--space-lg);
}

.container.narrow {
  max-width: 760px;
}

/* ===== Cards ===== */

.card {
  background: linear-gradient(135deg, rgba(30, 41, 59, 0.6), rgba(15, 23, 42, 0.8));
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  margin-bottom: var(--space-lg);
  box-shadow: var(--shadow-md);
  backdrop-filter: blur(12px);
  transition: all var(--transition-slow);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--primary-blue-light), transparent);
  opacity: 0;
  transition: opacity var(--transition-slow);
}

.card:hover {
  border-color: var(--border-medium);
  box-shadow: var(--shadow-lg), var(--shadow-glow-blue);
  transform: translateY(-4px);
}

.card:hover::before {
  opacity: 0.5;
}

.card h3 {
  color: var(--text-primary);
  margin-bottom: var(--space-md);
  font-weight: 600;
}

/* ===== Buttons ===== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-lg);
  font-weight: 600;
  font-size: 0.9375rem;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-base);
  border: none;
  text-decoration: none;
  position: relative;
  overflow: hidden;
  letter-spacing: 0.01em;
}

.btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
  width: 300px;
  height: 300px;
}

.btn.primary {
  background: linear-gradient(135deg, var(--primary-blue), var(--primary-blue-dark));
  color: #fff;
  box-shadow: var(--shadow-md);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.btn.primary:hover {
  box-shadow: var(--shadow-lg), var(--shadow-glow-blue);
  transform: translateY(-2px);
  background: linear-gradient(135deg, var(--primary-blue-light), var(--primary-blue));
}

.btn.secondary {
  background: rgba(30, 41, 59, 0.5);
  border: 1px solid var(--border-medium);
  color: var(--text-primary);
  backdrop-filter: blur(8px);
}

.btn.secondary:hover {
  background: rgba(30, 41, 59, 0.8);
  border-color: var(--border-strong);
  transform: translateY(-2px);
}

.btn.ghost {
  background: transparent;
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
}

.btn.ghost:hover {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-primary);
  border-color: var(--border-medium);
}

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

.btn.block {
  display: flex;
  width: 100%;
}

/* ===== Score Display ===== */

.score-circle {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  font-weight: 700;
  margin: 0 auto var(--space-lg);
  position: relative;
  background: linear-gradient(135deg, var(--primary-blue), var(--primary-purple));
  box-shadow: var(--shadow-glow);
}

.score-label {
  font-size: 0.875rem;
  color: var(--text-secondary);
  text-align: center;
  margin-top: var(--space-sm);
}

/* ===== Metrics ===== */

.metric {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-md);
  background: rgba(255, 255, 255, 0.03);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-sm);
  border-left: 3px solid transparent;
  transition: all 0.2s ease;
  color: var(--text-secondary);
}

.metric:hover {
  background: rgba(255, 255, 255, 0.08);
}

.metric.good { border-left-color: var(--success); }
.metric.warn { border-left-color: var(--warning); }
.metric.bad  { border-left-color: var(--error); }

.metric strong {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
}

/* ===== Progress Bars ===== */

.progress {
  height: 8px;
  background: rgba(148, 163, 184, 0.15);
  border-radius: var(--radius-full);
  overflow: hidden;
  margin: var(--space-md) 0;
  position: relative;
}

.progress .bar {
  height: 100%;
  background: linear-gradient(90deg, var(--primary-blue), var(--primary-purple));
  border-radius: var(--radius-full);
  transition: width 0.35s ease;
  box-shadow: 0 0 10px rgba(37, 99, 235, 0.55);
}

/* ===== Forms ===== */

input[type="email"],
input[type="text"],
input[type="file"],
textarea {
  width: 100%;
  padding: 0.875rem 1rem;
  background: rgba(15, 23, 42, 0.7);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 1rem;
  transition: all var(--transition-base);
}

input[type="email"]:focus,
input[type="text"]:focus,
input[type="file"]:focus,
textarea:focus {
  border-color: var(--primary-blue);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.25);
  outline: none;
}

/* ===== Share Buttons ===== */

.share-buttons .share-btn {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
}

.share-buttons .share-btn:hover {
  border-color: var(--border-strong);
  background: rgba(255, 255, 255, 0.08);
}

/* ===== Tables ===== */

table {
  width: 100%;
  border-collapse: collapse;
  margin-top: var(--space-lg);
  background: rgba(15, 23, 42, 0.65);
  border: 1px solid rgba(148, 163, 184, 0.1);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

thead {
  background: rgba(37, 99, 235, 0.12);
  color: var(--text-primary);
}

td, th {
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text-secondary);
}

tbody tr:hover {
  background: rgba(37, 99, 235, 0.08);
}

/* ===== Utility ===== */

.text-muted { color: var(--text-muted); }
.text-sm { font-size: 0.875rem; }
.text-xs { font-size: 0.75rem; }
.rounded-xl { border-radius: var(--radius-lg); }
.backdrop-blur-sm { backdrop-filter: blur(10px); }

.bg-dark { background: rgba(15, 23, 42, 0.85); }
.border-subtle { border: 1px solid var(--border-subtle); }

/* Tailwind overrides for legacy classes */
.bg-\[\#0f172a\] { background-color: var(--bg-dark) !important; }
.bg-\[\#0f172a\]\/50 { background-color: rgba(15, 23, 42, 0.5) !important; }
.bg-\[\#1e293b\] { background-color: var(--bg-card) !important; }
.bg-\[\#1e293b\]\/50 { background-color: rgba(30, 41, 59, 0.7) !important; }
.bg-\[\#1e293b\]\/95 { background-color: rgba(30, 41, 59, 0.95) !important; }
.border-\[\#334155\] { border-color: var(--border-subtle) !important; }
.border-\[\#334155\]\/40 { border-color: rgba(51, 65, 85, 0.4) !important; }
.text-\[\#f1f5f9\] { color: var(--text-primary) !important; }
.text-\[\#94a3b8\] { color: var(--text-muted) !important; }
.text-\[\#64748b\] { color: var(--text-disabled) !important; }
.text-\[\#cbd5e1\] { color: var(--text-secondary) !important; }