@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

/* =========================================================================
   1. VARIABLES & TOKENS
   ========================================================================= */
:root {
  /* Brand Colors */
  --primary: #1E3A5F;
  --secondary: #F5F7FA;
  --accent: #2FBF71;

  /* Accent Variations */
  --accent-hover: #26A15E;
  --primary-hover: #152B47;

  /* Status Colors (Soft) */
  --status-draft-bg: #F1F5F9;
  --status-draft-text: #475569;
  
  --status-review-asesor-bg: #FEF3C7;
  --status-review-asesor-text: #92400E;
  
  --status-review-abogado-bg: #E0E7FF;
  --status-review-abogado-text: #3730A3;
  
  --status-generated-bg: #DCFCE7;
  --status-generated-text: #166534;
  
  --status-final-bg: #F3E8FF;
  --status-final-text: #6B21A8;

  /* Neutrals & Text */
  --text-main: #111827;
  --text-muted: #6B7280;
  --text-disabled: #9CA3AF;
  --border-color: #E5E7EB;
  --bg-body: #F9FAFB;
  --bg-surface: #FFFFFF;

  /* Shadows (Subtle Enterprise) */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.05), 0 4px 6px -2px rgba(0, 0, 0, 0.025);

  /* Borders & Radii */
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 0.15s ease-in-out;
  --transition-normal: 0.25s ease-in-out;
}

/* =========================================================================
   2. GLOBAL STYLES
   ========================================================================= */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--bg-body);
  color: var(--text-main);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  text-decoration: none;
  color: var(--primary);
  transition: color var(--transition-fast);
}
a:hover {
  filter: brightness(0.9);
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 0.5rem;
}

/* =========================================================================
   3. LAYOUT (SIDEBAR & HEADER)
   ========================================================================= */
#app-layout {
  display: flex;
  height: 100vh;
  overflow: hidden;
}

/* Sidebar */
.sidebar {
  width: 260px;
  background-color: var(--bg-surface);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  z-index: 10;
}

.sidebar-header {
  padding: 1.5rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.sidebar-logo {
  width: 32px;
  height: 32px;
  background-color: var(--primary);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: bold;
}

.sidebar-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--primary);
}

.sidebar-nav {
  padding: 1rem 0.5rem;
  flex-grow: 1;
  overflow-y: auto;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  color: var(--text-muted);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  margin-bottom: 0.25rem;
}

.nav-item:hover {
  background-color: var(--secondary);
  color: var(--primary);
}

.nav-item.active {
  background-color: var(--secondary);
  color: var(--primary);
  font-weight: 600;
}

.nav-item svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

.sidebar-footer {
  padding: 1.5rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.user-profile {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.user-avatar {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background-color: var(--primary);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.875rem;
  font-weight: 600;
}

.user-info {
  display: flex;
  flex-direction: column;
}

.user-name {
  font-size: 0.875rem;
  font-weight: 600;
}

.user-role {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.form-error {
  border: 1px solid #fecaca;
  background-color: #fef2f2;
  color: #b91c1c;
  border-radius: var(--radius-md);
  padding: 0.75rem 0.875rem;
  font-size: 0.875rem;
}

/* Main Content Area */
.main-wrapper {
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.top-header {
  height: 64px;
  background-color: var(--bg-surface);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
  flex-shrink: 0;
}

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

.main-content {
  padding: 2rem;
  overflow-y: auto;
  flex-grow: 1;
}

/* Container for Views */
.view-section {
  display: none;
  animation: fadeIn var(--transition-normal);
}

.view-section.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(5px); }
  to { opacity: 1; transform: translateY(0); }
}

/* =========================================================================
   4. COMPONENTS
   ========================================================================= */

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

.card:hover {
  box-shadow: var(--shadow-md);
}

/* Grid Layouts */
.grid-cols-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.grid-cols-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

/* Summary Card */
.summary-card {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.summary-card-title {
  font-size: 0.875rem;
  color: var(--text-muted);
  font-weight: 500;
}

.summary-card-value {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--primary);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.625rem 1rem;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  border: 1px solid transparent;
}

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

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

.btn-outline {
  background-color: transparent;
  border-color: var(--border-color);
  color: var(--text-main);
}
.btn-outline:hover {
  background-color: var(--secondary);
}

/* Forms */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
  margin-bottom: 1.25rem;
}

.form-label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-main);
}

.form-control {
  width: 100%;
  padding: 0.625rem 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-family: 'Inter', sans-serif;
  color: var(--text-main);
  background-color: var(--bg-surface);
  transition: all var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(30, 58, 95, 0.1);
}

.form-row {
  display: flex;
  gap: 1.5rem;
}
.form-row > * {
  flex: 1;
}

/* File Upload Component */
.file-upload {
  border: 2px dashed var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2rem;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  background-color: var(--bg-surface);
}
.file-upload:hover {
  border-color: var(--primary);
  background-color: var(--secondary);
}
.file-upload-icon {
  width: 32px;
  height: 32px;
  fill: var(--text-muted);
  margin-bottom: 0.5rem;
}
.file-upload-text {
  font-size: 0.875rem;
  color: var(--text-muted);
}
.file-upload-text span {
  color: var(--primary);
  font-weight: 500;
}

/* Tables */
.table-container {
  overflow-x: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background-color: var(--bg-surface);
}

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

.table th {
  background-color: var(--bg-body);
  text-align: left;
  padding: 0.75rem 1rem;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-bottom: 1px solid var(--border-color);
}

.table td {
  padding: 1rem;
  font-size: 0.875rem;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-main);
  vertical-align: middle;
}

.table tbody tr:last-child td {
  border-bottom: none;
}

.table tbody tr:hover {
  background-color: var(--secondary);
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.625rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  line-height: normal;
}

.badge-draft {
  background-color: var(--status-draft-bg);
  color: var(--status-draft-text);
}
.badge-review-asesor {
  background-color: var(--status-review-asesor-bg);
  color: var(--status-review-asesor-text);
}
.badge-review-abogado {
  background-color: var(--status-review-abogado-bg);
  color: var(--status-review-abogado-text);
}
.badge-generated {
  background-color: var(--status-generated-bg);
  color: var(--status-generated-text);
}
.badge-final {
  background-color: var(--status-final-bg);
  color: var(--status-final-text);
}

/* Workflow Stepper */
.stepper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2rem;
  position: relative;
}

.stepper::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  height: 2px;
  background-color: var(--border-color);
  z-index: 1;
  transform: translateY(-50%);
}

.step {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  background-color: var(--bg-body); /* To mask the line */
  padding: 0 1rem;
}

.step-circle {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  background-color: var(--bg-surface);
  border: 2px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-muted);
  transition: all var(--transition-fast);
}

.step.active .step-circle {
  border-color: var(--primary);
  background-color: var(--primary);
  color: white;
}

.step.completed .step-circle {
  border-color: var(--accent);
  background-color: var(--accent);
  color: white;
}

.step-label {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-muted);
}

.step.active .step-label {
  color: var(--primary);
  font-weight: 600;
}

.step.completed .step-label {
  color: var(--accent);
}

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

.tab {
  padding: 0.75rem 1.25rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-muted);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all var(--transition-fast);
}

.tab:hover {
  color: var(--primary);
}

.tab.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
}

.tab-pane {
  display: none;
  animation: fadeIn var(--transition-fast);
}

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

/* Utility Classes */
.mb-2 { margin-bottom: 0.5rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-6 { margin-bottom: 1.5rem; }
.mb-8 { margin-bottom: 2rem; }
.mt-4 { margin-top: 1rem; }
.mt-8 { margin-top: 2rem; }
.flex { display: flex; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-4 { gap: 1rem; }

/* Login Screen Override */
.login-wrapper {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--bg-body);
}

.login-card {
  width: 100%;
  max-width: 400px;
  padding: 2.5rem;
}

.login-logo {
  text-align: center;
  margin-bottom: 2rem;
}

.login-logo svg {
  width: 48px;
  height: 48px;
  fill: var(--primary);
}

.login-logo h1 {
  font-size: 1.5rem;
  color: var(--primary);
  margin-top: 0.5rem;
}

/* Document Thumbnail */
.document-thumbnail {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background-color: #FAFAFA;
}
.document-thumbnail svg {
  width: 40px;
  height: 40px;
  fill: var(--text-muted);
}
.document-info {
  flex-grow: 1;
}
.document-name {
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
}
.document-meta {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* Action Header */
.action-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
}

/* Search Bar */
.search-bar {
  display: flex;
  align-items: center;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0 0.75rem;
  width: 300px;
}
.search-bar svg {
  width: 16px;
  height: 16px;
  fill: var(--text-muted);
}
.search-bar input {
  border: none;
  box-shadow: none;
  padding: 0.5rem;
}
.search-bar input:focus {
  outline: none;
  box-shadow: none;
}