/*
 * Galacticos AI Avatar Data Generator - Main Stylesheet
 * Developer Tools / Premium Tech Product Design System
 * Adheres to brandbook specifications in docs/brandbook.md
 * Last Updated: 2026-01-30
 */

/* Import Inter font (sans-serif) and JetBrains Mono (monospace) */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500;600&display=swap');

/* ========================================
   CSS CUSTOM PROPERTIES - DESIGN TOKENS
   ======================================== */

:root {
  /* BACKGROUND PALETTE (Charcoal & Dark Grays) */
  --color-bg-primary: #1a1a1a;
  --color-bg-secondary: #0f0f0f;
  --color-bg-elevated: #242424;
  --color-bg-hover: #2a2a2a;
  --color-border: #333333;

  /* ACCENT COLORS (Neon Electric) */
  --color-accent-cyan: #00d9ff;
  --color-accent-blue: #0088ff;
  --color-accent-cyan-dark: #00a8cc;
  --color-accent-blue-dark: #0066cc;

  /* TEXT COLORS (High Contrast) */
  --color-text-primary: #ffffff;
  --color-text-secondary: #cccccc;
  --color-text-tertiary: #999999;
  --color-text-muted: #666666;
  --color-text-placeholder: #555555;

  /* SEMANTIC COLORS (Neon) */
  --color-success: #00ff88;
  --color-success-dark: #00cc6a;
  --color-warning: #ffaa00;
  --color-warning-dark: #cc8800;
  --color-error: #ff4466;
  --color-error-dark: #cc3355;
  --color-info: #00d9ff;

  /* TERMINAL/CODE COLORS */
  --color-code-bg: #0f0f0f;
  --color-code-text: #00ff88;
  --color-code-comment: #666666;
  --color-code-keyword: #00d9ff;
  --color-code-string: #ffaa00;

  /* TYPOGRAPHY */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'SF Mono', 'Consolas', 'Monaco', 'Courier New', monospace;

  /* FONT SIZES */
  --font-size-hero: 3rem;      /* 48px */
  --font-size-h1: 2rem;        /* 32px */
  --font-size-h2: 1.5rem;      /* 24px */
  --font-size-h3: 1.25rem;     /* 20px */
  --font-size-h4: 1rem;        /* 16px */
  --font-size-body: 0.875rem;  /* 14px */
  --font-size-small: 0.75rem;  /* 12px */
  --font-size-tiny: 0.6875rem; /* 11px */

  /* FONT WEIGHTS */
  --font-weight-light: 300;
  --font-weight-regular: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;

  /* LINE HEIGHTS */
  --line-height-tight: 1.2;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.6;

  /* SPACING (Tight, Precise 4px Base) */
  --spacing-0: 0;
  --spacing-1: 0.25rem;   /* 4px */
  --spacing-2: 0.5rem;    /* 8px */
  --spacing-3: 0.75rem;   /* 12px */
  --spacing-4: 1rem;      /* 16px */
  --spacing-5: 1.25rem;   /* 20px */
  --spacing-6: 1.5rem;    /* 24px */
  --spacing-8: 2rem;      /* 32px */
  --spacing-10: 2.5rem;   /* 40px */
  --spacing-12: 3rem;     /* 48px */

  /* BORDER RADIUS - CRITICAL: SHARP CORNERS ONLY */
  --radius-none: 0;

  /* TRANSITIONS (Precise, Snappy) */
  --transition-fast: 0.15s ease-out;
  --transition-base: 0.2s ease-out;
  --transition-slow: 0.3s ease-out;

  /* Z-INDEX SCALE */
  --z-base: 0;
  --z-dropdown: 10;
  --z-sticky: 20;
  --z-fixed: 30;
  --z-modal-backdrop: 40;
  --z-modal: 50;
}

/* ========================================
   RESET AND BASE STYLES
   ======================================== */

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-primary);
  font-size: var(--font-size-body);
  font-weight: var(--font-weight-regular);
  line-height: var(--line-height-normal);
  color: var(--color-text-primary);
  background-color: var(--color-bg-primary);
  min-height: 100vh;
}

/* ========================================
   TYPOGRAPHY
   ======================================== */

h1, h2, h3, h4, h5, h6 {
  line-height: var(--line-height-tight);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--spacing-4);
  color: var(--color-text-primary);
}

h1 { font-size: var(--font-size-h1); }
h2 { font-size: var(--font-size-h2); }
h3 { font-size: var(--font-size-h3); }
h4 { font-size: var(--font-size-h4); }

p {
  margin-bottom: var(--spacing-4);
  color: var(--color-text-secondary);
}

a {
  color: var(--color-accent-cyan);
  text-decoration: none;
  transition: color var(--transition-base);
}

a:hover {
  color: var(--color-accent-cyan-dark);
}

strong, b {
  font-weight: var(--font-weight-semibold);
}

code {
  font-family: var(--font-mono);
  background-color: var(--color-code-bg);
  color: var(--color-code-text);
  padding: 0.125rem 0.375rem;
  font-size: 0.875em;
}

/* ========================================
   BUTTON COMPONENTS (Developer Tools Style)
   ======================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  font-size: var(--font-size-body);
  font-weight: var(--font-weight-semibold);
  font-family: var(--font-primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border: none;
  border-radius: var(--radius-none);
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  gap: var(--spacing-2);
  white-space: nowrap;
  user-select: none;
}

.btn:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px rgba(0, 217, 255, 0.4);
}

.btn-primary {
  background-color: var(--color-accent-cyan);
  color: var(--color-bg-secondary);
  box-shadow: 0 0 20px rgba(0, 217, 255, 0.3);
}

.btn-primary:hover {
  background-color: var(--color-accent-cyan-dark);
  box-shadow: 0 0 30px rgba(0, 217, 255, 0.6), 0 0 60px rgba(0, 217, 255, 0.3);
}

.btn-primary:active {
  background-color: #008fb3;
  box-shadow: 0 0 15px rgba(0, 217, 255, 0.4);
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-accent-cyan);
  border: 1px solid var(--color-accent-cyan);
  box-shadow: 0 0 15px rgba(0, 217, 255, 0.2);
}

.btn-secondary:hover {
  background-color: rgba(0, 217, 255, 0.1);
  box-shadow: 0 0 25px rgba(0, 217, 255, 0.4);
}

.btn-ghost {
  background-color: transparent;
  color: var(--color-text-secondary);
}

.btn-ghost:hover {
  background-color: var(--color-bg-elevated);
  color: var(--color-text-primary);
}

.btn-danger {
  background-color: var(--color-error);
  color: var(--color-bg-secondary);
  box-shadow: 0 0 20px rgba(255, 68, 102, 0.3);
}

.btn-danger:hover {
  background-color: var(--color-error-dark);
  box-shadow: 0 0 30px rgba(255, 68, 102, 0.6);
}

.btn-block {
  width: 100%;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ========================================
   FORM ELEMENTS (Sharp, Technical)
   ======================================== */

.form-group {
  margin-bottom: var(--spacing-6);
}

.form-label {
  display: block;
  margin-bottom: var(--spacing-2);
  color: var(--color-text-secondary);
  font-size: var(--font-size-body);
  font-weight: var(--font-weight-medium);
  letter-spacing: 0.025em;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  background-color: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-none);
  color: var(--color-text-primary);
  font-size: var(--font-size-body);
  font-family: var(--font-primary);
  transition: all var(--transition-base);
}

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

.form-input:hover,
.form-select:hover,
.form-textarea:hover {
  border-color: #444444;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-accent-cyan);
  box-shadow: 0 0 20px rgba(0, 217, 255, 0.3);
}

.form-input:disabled,
.form-select:disabled,
.form-textarea:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Error state */
.form-input.is-invalid,
.form-select.is-invalid,
.form-textarea.is-invalid {
  border-color: var(--color-error);
  box-shadow: 0 0 20px rgba(255, 68, 102, 0.3);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
  line-height: var(--line-height-normal);
}

.form-help-text {
  display: block;
  margin-top: var(--spacing-2);
  font-size: var(--font-size-small);
  color: var(--color-text-tertiary);
}

.form-error-text {
  display: block;
  margin-top: var(--spacing-2);
  font-size: var(--font-size-small);
  color: var(--color-error);
  font-weight: var(--font-weight-medium);
}

/* Checkbox styling */
.checkbox-input {
  width: 18px;
  height: 18px;
  border-radius: var(--radius-none);
  border: 1.5px solid var(--color-border);
  background-color: var(--color-bg-secondary);
  cursor: pointer;
  accent-color: var(--color-accent-cyan);
  transition: all var(--transition-base);
}

.checkbox-input:hover {
  border-color: var(--color-text-muted);
}

.checkbox-input:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(0, 217, 255, 0.4);
}

.checkbox-label {
  color: var(--color-text-secondary);
  font-size: var(--font-size-body);
  cursor: pointer;
  user-select: none;
}

.checkbox-group {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
}

/* ========================================
   CARD COMPONENT (Sharp, Grid-Based)
   ======================================== */

.card {
  background-color: var(--color-bg-primary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-none);
  padding: var(--spacing-6);
  box-shadow: none;
  transition: all var(--transition-base);
}

.card-hover {
  cursor: pointer;
}

.card-hover:hover {
  border-color: var(--color-accent-cyan);
  box-shadow: 0 0 20px rgba(0, 217, 255, 0.15);
}

.card-elevated {
  background-color: var(--color-bg-elevated);
  border: 1px solid #444444;
}

.card-code {
  background-color: var(--color-code-bg);
  border: 1px solid var(--color-accent-cyan);
  font-family: var(--font-mono);
}

.card-header {
  margin-bottom: var(--spacing-6);
}

.card-title {
  font-size: var(--font-size-h3);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-2);
}

.card-description {
  color: var(--color-text-secondary);
  font-size: var(--font-size-body);
  line-height: var(--line-height-relaxed);
}

/* ========================================
   CONTAINER AND LAYOUT
   ======================================== */

.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--spacing-6);
}

.container-narrow {
  max-width: 480px;
}

.container-medium {
  max-width: 800px;
}

.container-wide {
  max-width: 1440px;
}

/* ========================================
   NAVIGATION - HEADER
   ======================================== */

.header {
  height: 60px;
  background-color: var(--color-bg-primary);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  padding: 0 var(--spacing-6);
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: 1440px;
  margin: 0 auto;
}

.header-brand {
  display: flex;
  align-items: center;
}

.header-logo {
  height: 32px;
  width: auto;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: var(--spacing-6);
}

.header-user {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
}

.user-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-accent-cyan), var(--color-accent-blue));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-bg-secondary);
  font-weight: var(--font-weight-semibold);
  font-size: var(--font-size-small);
}

.user-name {
  color: var(--color-text-primary);
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-body);
}

/* ========================================
   NAVIGATION - SIDEBAR
   ======================================== */

.dashboard-layout {
  display: flex;
  min-height: calc(100vh - 60px);
}

.sidebar {
  width: 240px;
  background-color: var(--color-bg-primary);
  border-right: 1px solid var(--color-border);
  padding: var(--spacing-6) var(--spacing-3);
}

.sidebar-nav {
  list-style: none;
}

.sidebar-nav-item {
  margin-bottom: var(--spacing-1);
}

.sidebar-nav-link {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
  padding: 0.75rem 1rem;
  color: var(--color-text-tertiary);
  border-radius: var(--radius-none);
  transition: all var(--transition-fast);
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-body);
  position: relative;
}

.sidebar-nav-link:hover {
  background-color: var(--color-bg-elevated);
  color: var(--color-text-primary);
}

.sidebar-nav-link.active {
  background-color: rgba(0, 217, 255, 0.1);
  color: var(--color-accent-cyan);
  font-weight: var(--font-weight-semibold);
  border-left: 3px solid var(--color-accent-cyan);
  padding-left: calc(1rem - 3px);
}

.sidebar-nav-icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

/* ========================================
   MAIN CONTENT AREA
   ======================================== */

.main-content {
  flex: 1;
  padding: var(--spacing-12);
  overflow-y: auto;
  background-color: var(--color-bg-primary);
}

.page-header {
  margin-bottom: var(--spacing-12);
}

.page-title {
  font-size: var(--font-size-h1);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-2);
}

.page-description {
  color: var(--color-text-secondary);
  font-size: var(--font-size-body);
  line-height: var(--line-height-relaxed);
}

/* ========================================
   GRID SYSTEM
   ======================================== */

.grid {
  display: grid;
  gap: var(--spacing-6);
}

.grid-cols-1 { grid-template-columns: repeat(1, 1fr); }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }

/* ========================================
   ALERT/MESSAGE COMPONENTS (Technical)
   ======================================== */

.alert {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-3);
  padding: 0.75rem 1rem;
  border-radius: var(--radius-none);
  margin-bottom: var(--spacing-4);
  border: 1px solid;
  border-left-width: 3px;
  font-size: var(--font-size-body);
  font-weight: var(--font-weight-medium);
}

.alert-error {
  background-color: rgba(255, 68, 102, 0.1);
  border-color: rgba(255, 68, 102, 0.3);
  border-left-color: var(--color-error);
  color: var(--color-error);
}

.alert-success {
  background-color: rgba(0, 255, 136, 0.1);
  border-color: rgba(0, 255, 136, 0.3);
  border-left-color: var(--color-success);
  color: var(--color-success);
}

.alert-warning {
  background-color: rgba(255, 170, 0, 0.1);
  border-color: rgba(255, 170, 0, 0.3);
  border-left-color: var(--color-warning);
  color: var(--color-warning);
}

.alert-info {
  background-color: rgba(0, 217, 255, 0.1);
  border-color: rgba(0, 217, 255, 0.3);
  border-left-color: var(--color-info);
  color: var(--color-info);
}

.alert svg,
.alert i {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

/* ========================================
   BADGE COMPONENT (Sharp Rectangles)
   ======================================== */

.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-2);
  padding: 0.25rem 0.5rem;
  border-radius: var(--radius-none);
  font-size: var(--font-size-tiny);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  white-space: nowrap;
}

.badge-primary {
  background-color: var(--color-accent-cyan);
  color: var(--color-bg-secondary);
}

.badge-success {
  background-color: var(--color-success);
  color: var(--color-bg-secondary);
}

.badge-error {
  background-color: var(--color-error);
  color: var(--color-text-primary);
}

.badge-warning {
  background-color: var(--color-warning);
  color: var(--color-bg-secondary);
}

/* ========================================
   LOADING STATES (Technical)
   ======================================== */

.spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-accent-cyan);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

.loading-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(15, 15, 15, 0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: var(--z-modal);
}

.loading-content {
  text-align: center;
}

.loading-title {
  margin-top: var(--spacing-4);
  font-size: var(--font-size-h4);
  color: var(--color-text-primary);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--spacing-2);
}

.loading-description {
  color: var(--color-text-tertiary);
  font-size: var(--font-size-body);
}

/* ========================================
   UTILITY CLASSES
   ======================================== */

/* Text Alignment */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

/* Text Colors */
.text-primary { color: var(--color-text-primary); }
.text-secondary { color: var(--color-text-secondary); }
.text-tertiary { color: var(--color-text-tertiary); }
.text-muted { color: var(--color-text-muted); }

/* Font Weights */
.font-medium { font-weight: var(--font-weight-medium); }
.font-semibold { font-weight: var(--font-weight-semibold); }
.font-bold { font-weight: var(--font-weight-bold); }

/* Font Families */
.font-mono { font-family: var(--font-mono); }

/* Margin Utilities */
.mt-0 { margin-top: 0; }
.mt-2 { margin-top: var(--spacing-2); }
.mt-4 { margin-top: var(--spacing-4); }
.mt-6 { margin-top: var(--spacing-6); }
.mt-8 { margin-top: var(--spacing-8); }

.mb-0 { margin-bottom: 0; }
.mb-2 { margin-bottom: var(--spacing-2); }
.mb-4 { margin-bottom: var(--spacing-4); }
.mb-6 { margin-bottom: var(--spacing-6); }
.mb-8 { margin-bottom: var(--spacing-8); }

/* Padding Utilities */
.p-4 { padding: var(--spacing-4); }
.p-6 { padding: var(--spacing-6); }
.p-8 { padding: var(--spacing-8); }

/* Gap Utilities */
.gap-2 { gap: var(--spacing-2); }
.gap-4 { gap: var(--spacing-4); }
.gap-6 { gap: var(--spacing-6); }

/* ========================================
   RESPONSIVE DESIGN (Mobile-first)
   ======================================== */

@media (max-width: 1024px) {
  .sidebar {
    width: 220px;
  }

  .main-content {
    padding: var(--spacing-8);
  }

  .grid-cols-3 {
    grid-template-columns: repeat(2, 1fr);
  }

  .grid-cols-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .header {
    padding: 0 var(--spacing-4);
  }

  .dashboard-layout {
    flex-direction: column;
  }

  .sidebar {
    width: 100%;
    border-right: none;
    border-bottom: 1px solid var(--color-border);
    padding: var(--spacing-4);
  }

  .sidebar-nav {
    display: flex;
    overflow-x: auto;
    gap: var(--spacing-2);
  }

  .sidebar-nav-item {
    margin-bottom: 0;
  }

  .main-content {
    padding: var(--spacing-6);
  }

  .page-header {
    margin-bottom: var(--spacing-8);
  }

  .page-title {
    font-size: var(--font-size-h2);
  }

  .grid-cols-2,
  .grid-cols-3,
  .grid-cols-4 {
    grid-template-columns: 1fr;
  }

  .user-name {
    display: none;
  }
}

/* ========================================
   ACCESSIBILITY - FOCUS STATES
   ======================================== */

*:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px rgba(0, 217, 255, 0.4);
}

/* Reduce motion for users who prefer it */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}