/**
 * Scribe Platform Styles
 * Core design system with Bitcoin-inspired aesthetics
 */

/* ============================================
   CSS Custom Properties (Design Tokens)
   ============================================ */
:root {
  /* Brand Colors */
  --scribe-brand: #f7931a;
  --scribe-brand-hover: #ff9f2e;
  --scribe-brand-dark: #d97706;
  --scribe-accent: #f7931a;
  
  /* Background Colors */
  --scribe-bg-primary: #0f0f0f;
  --scribe-bg-secondary: #1a1a1a;
  --scribe-bg-tertiary: #212121;
  --scribe-bg-hover: #2a2a2a;
  --scribe-bg-active: #333;
  
  /* Text Colors */
  --scribe-text-primary: #f1f1f1;
  --scribe-text-secondary: #aaa;
  --scribe-text-muted: #717171;
  --scribe-text-disabled: #555;
  
  /* Border & Dividers */
  --scribe-border: #333;
  --scribe-divider: #2a2a2a;
  
  /* Semantic Colors */
  --scribe-success: #22c55e;
  --scribe-warning: #f59e0b;
  --scribe-error: #ef4444;
  --scribe-info: #3b82f6;
  
  /* Shadows */
  --scribe-shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --scribe-shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
  --scribe-shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.5);
  
  /* Spacing */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-2xl: 48px;
  
  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;
  
  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.2s ease;
  --transition-slow: 0.3s ease;
  
  /* Layout */
  --header-height: 56px;
  --sidebar-width: 240px;
  --sidebar-collapsed: 72px;
  
  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', Consolas, monospace;
  
  /* Z-Index Scale */
  --z-dropdown: 100;
  --z-modal: 200;
  --z-toast: 300;
}

/* ============================================
   Base Reset
   ============================================ */
*, *::before, *::after {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.5;
  color: var(--scribe-text-primary);
  background-color: var(--scribe-bg-primary);
  min-height: 100vh;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font-family: inherit;
  font-size: inherit;
  cursor: pointer;
  border: none;
  background: none;
  padding: 0;
}

input, textarea, select {
  font-family: inherit;
  font-size: inherit;
}

img {
  max-width: 100%;
  height: auto;
}

/* ============================================
   Layout
   ============================================ */
.app-container {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.app-body {
  display: flex;
  flex: 1;
  padding-top: var(--header-height);
}

.main-content {
  flex: 1;
  margin-left: var(--sidebar-width);
  min-height: calc(100vh - var(--header-height));
  transition: margin-left var(--transition-normal);
}

.sidebar-collapsed .main-content {
  margin-left: var(--sidebar-collapsed);
}

@media (max-width: 1024px) {
  .main-content {
    margin-left: 0;
  }
}

/* ============================================
   Header
   ============================================ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: var(--scribe-bg-secondary);
  border-bottom: 1px solid var(--scribe-border);
  display: flex;
  align-items: center;
  padding: 0 var(--spacing-md);
  z-index: var(--z-dropdown);
}

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

.header-center {
  flex: 1;
  display: flex;
  justify-content: center;
  padding: 0 var(--spacing-lg);
}

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

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  cursor: pointer;
  position: relative;
}

.logo-icon {
  width: 32px;
  height: 32px;
}

.logo-text {
  font-size: 20px;
  font-weight: 700;
  color: var(--scribe-text-primary);
  letter-spacing: -0.5px;
}

.logo-dropdown-trigger {
  padding: 4px;
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast);
}

.logo-dropdown-trigger:hover {
  background: var(--scribe-bg-hover);
}

/* Search */
.search-bar {
  width: 100%;
  max-width: 600px;
  display: flex;
  background: var(--scribe-bg-tertiary);
  border-radius: var(--radius-full);
  overflow: hidden;
  border: 1px solid var(--scribe-border);
  transition: border-color var(--transition-fast);
}

.search-bar:focus-within {
  border-color: var(--scribe-brand);
}

.search-input {
  flex: 1;
  padding: 10px 16px;
  background: transparent;
  border: none;
  color: var(--scribe-text-primary);
  outline: none;
}

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

.search-btn {
  padding: 0 20px;
  background: var(--scribe-bg-hover);
  color: var(--scribe-text-secondary);
  border-left: 1px solid var(--scribe-border);
  transition: background var(--transition-fast);
}

.search-btn:hover {
  background: var(--scribe-bg-active);
}

/* ============================================
   Sidebar
   ============================================ */
.sidebar {
  position: fixed;
  top: var(--header-height);
  left: 0;
  bottom: 0;
  width: var(--sidebar-width);
  background: var(--scribe-bg-primary);
  border-right: 1px solid var(--scribe-border);
  overflow-y: auto;
  overflow-x: hidden;
  transition: width var(--transition-normal);
  z-index: calc(var(--z-dropdown) - 1);
}

.sidebar.collapsed {
  width: var(--sidebar-collapsed);
}

.sidebar-section {
  padding: var(--spacing-sm) 0;
}

.sidebar-title {
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: 11px;
  font-weight: 600;
  color: var(--scribe-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.sidebar-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: 10px var(--spacing-md);
  color: var(--scribe-text-secondary);
  transition: all var(--transition-fast);
  border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
  margin-right: var(--spacing-sm);
}

.sidebar-item:hover {
  background: var(--scribe-bg-hover);
  color: var(--scribe-text-primary);
}

.sidebar-item.active {
  background: var(--scribe-bg-hover);
  color: var(--scribe-text-primary);
}

.sidebar-icon {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
}

.sidebar-label {
  font-size: 14px;
  white-space: nowrap;
}

/* Collapsed state */
.sidebar.collapsed .sidebar-label,
.sidebar.collapsed .sidebar-title {
  display: none;
}

.sidebar.collapsed .sidebar-item {
  justify-content: center;
  padding: 12px;
  margin: 0 var(--spacing-sm);
  border-radius: var(--radius-lg);
}

.sidebar-item.disabled {
  opacity: 0.4;
  pointer-events: none;
}

.sidebar-divider {
  height: 1px;
  background: var(--scribe-border);
  margin: var(--spacing-sm) var(--spacing-md);
}

@media (max-width: 1024px) {
  .sidebar {
    transform: translateX(-100%);
  }
  
  .sidebar.open {
    transform: translateX(0);
  }
}

/* ============================================
   Buttons
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: 10px 16px;
  font-weight: 500;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn-primary {
  background: var(--scribe-brand);
  color: #000;
}

.btn-primary:hover {
  background: var(--scribe-brand-hover);
}

.btn-secondary {
  background: var(--scribe-bg-tertiary);
  color: var(--scribe-text-primary);
}

.btn-secondary:hover {
  background: var(--scribe-bg-hover);
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--scribe-border);
  color: var(--scribe-text-primary);
}

.btn-outline:hover {
  background: var(--scribe-bg-hover);
  border-color: var(--scribe-text-muted);
}

.btn-large {
  padding: 14px 24px;
  font-size: 16px;
}

.btn-small {
  padding: 6px 12px;
  font-size: 12px;
}

.btn-block {
  width: 100%;
}

/* ============================================
   Dropdowns
   ============================================ */
.dropdown {
  position: relative;
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 200px;
  background: var(--scribe-bg-secondary);
  border: 1px solid var(--scribe-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--scribe-shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all var(--transition-fast);
  z-index: var(--z-dropdown);
}

.dropdown.open .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(8px);
}

.dropdown-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: 12px 16px;
  color: var(--scribe-text-primary);
  transition: background var(--transition-fast);
}

.dropdown-item:hover {
  background: var(--scribe-bg-hover);
}

.dropdown-item:first-child {
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.dropdown-item:last-child {
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

.dropdown-divider {
  height: 1px;
  background: var(--scribe-border);
  margin: var(--spacing-xs) 0;
}

/* ============================================
   Cards
   ============================================ */
.card {
  background: var(--scribe-bg-secondary);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.card-header {
  padding: var(--spacing-md);
  border-bottom: 1px solid var(--scribe-border);
}

.card-body {
  padding: var(--spacing-md);
}

.card-footer {
  padding: var(--spacing-md);
  border-top: 1px solid var(--scribe-border);
}

/* ============================================
   Forms
   ============================================ */
.form-group {
  margin-bottom: var(--spacing-md);
}

.form-group label {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-size: 13px;
  font-weight: 500;
  color: var(--scribe-text-secondary);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 10px 12px;
  background: var(--scribe-bg-tertiary);
  border: 1px solid var(--scribe-border);
  border-radius: var(--radius-md);
  color: var(--scribe-text-primary);
  transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--scribe-brand);
}

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

.form-hint {
  font-size: 12px;
  color: var(--scribe-text-muted);
  margin-top: var(--spacing-xs);
}

/* ============================================
   Modals
   ============================================ */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
  z-index: var(--z-modal);
}

.modal-overlay.open {
  opacity: 1;
  visibility: visible;
}

.modal {
  background: var(--scribe-bg-secondary);
  border-radius: var(--radius-xl);
  max-width: 90vw;
  max-height: 90vh;
  overflow: hidden;
  transform: scale(0.95);
  transition: transform var(--transition-normal);
}

.modal-overlay.open .modal {
  transform: scale(1);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md) var(--spacing-lg);
  border-bottom: 1px solid var(--scribe-border);
}

.modal-title {
  font-size: 18px;
  font-weight: 600;
}

.modal-close {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  color: var(--scribe-text-secondary);
  transition: all var(--transition-fast);
}

.modal-close:hover {
  background: var(--scribe-bg-hover);
  color: var(--scribe-text-primary);
}

.modal-body {
  padding: var(--spacing-lg);
  overflow-y: auto;
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-lg);
  border-top: 1px solid var(--scribe-border);
}

/* ============================================
   Spinner / Loading
   ============================================ */
.spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--scribe-bg-tertiary);
  border-top-color: var(--scribe-brand);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* ============================================
   Empty States
   ============================================ */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-2xl);
  text-align: center;
}

.empty-icon {
  font-size: 64px;
  margin-bottom: var(--spacing-md);
}

.empty-state h3 {
  font-size: 20px;
  margin-bottom: var(--spacing-sm);
  color: var(--scribe-text-primary);
}

.empty-state p {
  color: var(--scribe-text-secondary);
  margin-bottom: var(--spacing-lg);
}

/* ============================================
   Section Pages
   ============================================ */
.section-page {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--spacing-lg);
}

.section-header {
  margin-bottom: var(--spacing-xl);
}

.section-header h1 {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
}

.section-header p {
  color: var(--scribe-text-secondary);
  font-size: 16px;
}

/* ============================================
   Creator Pages
   ============================================ */
.creator-page {
  max-width: 800px;
  margin: 0 auto;
  padding: var(--spacing-lg);
}

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

.back-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  color: var(--scribe-text-secondary);
  margin-bottom: var(--spacing-md);
  transition: color var(--transition-fast);
}

.back-btn:hover {
  color: var(--scribe-text-primary);
}

/* ============================================
   Connect Prompt
   ============================================ */
.connect-prompt {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-2xl);
  text-align: center;
  background: var(--scribe-bg-secondary);
  border-radius: var(--radius-xl);
}

.prompt-icon {
  font-size: 48px;
  margin-bottom: var(--spacing-md);
}

.connect-prompt h2,
.connect-prompt h3 {
  font-size: 20px;
  margin-bottom: var(--spacing-sm);
}

.connect-prompt p {
  color: var(--scribe-text-secondary);
  margin-bottom: var(--spacing-lg);
}

/* ============================================
   Utility Classes
   ============================================ */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-muted { color: var(--scribe-text-muted); }
.text-brand { color: var(--scribe-brand); }
.text-success { color: var(--scribe-success); }
.text-warning { color: var(--scribe-warning); }
.text-error { color: var(--scribe-error); }

.hidden { display: none !important; }
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

/* ============================================
   Animations
   ============================================ */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.animate-fade-in { animation: fadeIn 0.3s ease; }
.animate-slide-up { animation: slideUp 0.3s ease; }
.animate-pulse { animation: pulse 2s infinite; }