/* Modern Dark Mode CSS Framework - Matching Homepage Theme */

:root {
  /* Homepage Blue Color Palette */
  --color-primary: #4a9eff;
  --color-primary-dark: #357abd;
  --color-primary-light: #6bb0ff;
  --color-primary-hover: #357abd;
  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-danger: #ef4444;
  --color-text: #e5e7eb;
  --color-text-muted: #9ca3af;
  --color-text-light: #6b7280;
  --color-bg: #0a0a0a;
  --color-bg-secondary: #111111;
  --color-bg-tertiary: rgba(17, 17, 17, 0.8);
  --color-border: rgba(255, 255, 255, 0.08);
  --color-border-hover: rgba(74, 158, 255, 0.3);
  --color-shadow: rgba(0, 0, 0, 0.3);
  --color-shadow-hover: rgba(0, 0, 0, 0.5);
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  
  /* Typography */
  --font-sans: 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'SF Mono', 'Monaco', 'Inconsolata', 'Fira Code', monospace;
  
  /* Border Radius */
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  
  /* Transitions */
  --transition: all 0.25s ease;
}

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

body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
}

/* Header */
.header {
  background: rgba(10, 10, 10, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  padding: var(--spacing-sm) var(--spacing-lg);
  display: flex;
  gap: var(--spacing-md);
  align-items: center;
  flex-wrap: wrap;
}

.header a {
  color: var(--color-text-muted);
  text-decoration: none;
  transition: var(--transition);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
  font-size: 0.9375rem;
}

.header a:hover {
  color: var(--color-primary);
  background: rgba(74, 158, 255, 0.05);
}

/* Container */
.container {
  max-width: 1600px;
  margin: 0 auto;
  padding: var(--spacing-lg);
}

/* Cards */
.card {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  box-shadow: 0 4px 6px var(--color-shadow);
  transition: var(--transition);
}

.card:hover {
  border-color: var(--color-border-hover);
  box-shadow: 0 10px 15px var(--color-shadow-hover);
}

/* Buttons - Modern & Clean */
button, .btn {
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text);
  padding: 0.875rem 1.5rem;
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  border-radius: var(--radius-md);
  font-family: var(--font-sans);
  min-height: 44px;
}

button:hover, .btn:hover {
  background: rgba(74, 158, 255, 0.05);
  border-color: var(--color-primary);
  color: var(--color-primary);
  transform: translateY(-1px);
}

button:active, .btn:active {
  transform: translateY(0);
}

button.secondary {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

button.secondary:hover {
  background: rgba(74, 158, 255, 0.05);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* Inputs */
input[type="text"],
input[type="number"],
input[type="range"],
textarea,
select {
  background: var(--color-bg-tertiary);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  padding: 0.75rem 1rem;
  font-size: 1rem;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  font-family: var(--font-sans);
  min-height: 44px;
}

input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(74, 158, 255, 0.1);
}

input::placeholder,
textarea::placeholder {
  color: var(--color-text-light);
}

/* Range Slider Styling */
input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 3px;
  outline: none;
  margin: var(--spacing-sm) 0;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  background: var(--color-primary);
  border-radius: 50%;
  cursor: pointer;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
  transition: var(--transition);
}

input[type="range"]::-webkit-slider-thumb:hover {
  background: var(--color-primary-light);
  transform: scale(1.1);
  box-shadow: 0 0 8px rgba(74, 158, 255, 0.5);
}

input[type="range"]::-moz-range-thumb {
  width: 18px;
  height: 18px;
  background: var(--color-primary);
  border-radius: 50%;
  cursor: pointer;
  border: none;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
  transition: var(--transition);
}

input[type="range"]::-moz-range-thumb:hover {
  background: var(--color-primary-light);
  transform: scale(1.1);
  box-shadow: 0 0 8px rgba(74, 158, 255, 0.5);
}

input[type="range"]::-moz-range-track {
  height: 6px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 3px;
}

/* Labels */
label {
  display: block;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: var(--spacing-sm);
}

/* Status Messages */
.status-message {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  margin: var(--spacing-md) 0;
}

.status-message.info {
  border-color: var(--color-primary);
  background: rgba(74, 158, 255, 0.05);
  color: var(--color-primary-light);
}

.status-message.success {
  border-color: var(--color-success);
  background: rgba(16, 185, 129, 0.1);
  color: #34d399;
}

.status-message.warning {
  border-color: var(--color-warning);
  background: rgba(245, 158, 11, 0.1);
  color: #fbbf24;
}

/* Progress Bar */
.progress-bar {
  width: 100%;
  height: 8px;
  background: var(--color-bg-tertiary);
  border-radius: var(--radius-sm);
  overflow: hidden;
  margin: var(--spacing-sm) 0;
}

.progress-bar-fill {
  height: 100%;
  background: var(--color-primary);
  transition: width 0.3s ease;
}

/* Responsive */
@media (max-width: 768px) {
  .container {
    padding: var(--spacing-md);
  }
}