/*!
 * Semble Core CSS - Clean Foundation
 * Version: 3.0.0
 * Date: January 2025
 * 
 * STRUCTURE:
 * 1. CSS Custom Properties (Design Tokens)
 * 2. Base Styles & Typography
 * 3. Layout Fundamentals
 * 4. Core Components (Buttons, Cards, Forms)
 * 5. Utility Classes
 * 6. Responsive Design
 */

/* ==========================================================================
   1. CSS CUSTOM PROPERTIES (DESIGN TOKENS)
   ========================================================================== */

:root {
  /* Colors */
  --semble-primary: #0D4B6B;
  --semble-primary-hover: #1B5F7A;
  --semble-primary-active: #2E7A9B;
  --semble-secondary: #6B7280;
  --semble-secondary-hover: #4B5563;
  
  /* Success/Error States */
  --semble-success: #10b981;
  --semble-success-bg: #d1fae5;
  --semble-success-text: #065f46;
  --semble-error: #ef4444;
  --semble-error-bg: #fed7d7;
  --semble-error-text: #c53030;
  
  /* Extended Color Palette */
  --semble-green-50: #f0fdf4;
  --semble-green-200: #bbf7d0;
  --semble-green-800: #166534;
  --semble-red-50: #fef2f2;
  --semble-red-200: #fecaca;
  --semble-red-500: #ef4444;
  --semble-red-800: #991b1b;
  
  /* Neutral Colors */
  --semble-white: #ffffff;
  --semble-gray-50: #f8fafc;
  --semble-gray-100: #f1f5f9;
  --semble-gray-200: #e2e8f0;
  --semble-gray-300: #cbd5e0;
  --semble-gray-400: #a0aec0;
  --semble-gray-500: #64748b;
  --semble-gray-600: #4a5568;
  --semble-gray-700: #374151;
  --semble-gray-800: #2d3748;
  --semble-gray-900: #1a202c;
  
  /* Spacing */
  --semble-spacing-xs: 4px;
  --semble-spacing-sm: 8px;
  --semble-spacing-md: 12px;
  --semble-spacing-lg: 16px;
  --semble-spacing-xl: 20px;
  --semble-spacing-2xl: 24px;
  --semble-spacing-3xl: 32px;
  --semble-spacing-4xl: 40px;
  --semble-spacing-5xl: 60px;
  
  /* Typography */
  --semble-font-family: inherit;
  --semble-font-size-xs: 0.75em;
  --semble-font-size-sm: 0.8em;
  --semble-font-size-base: 0.9em;
  --semble-font-size-lg: 1.1em;
  --semble-font-size-xl: 1.3em;
  --semble-font-size-2xl: 1.5em;
  
  /* Border Radius */
  --semble-radius-sm: 8px;
  --semble-radius-md: 12px;
  --semble-radius-lg: 14px;
  
  /* Shadows */
  --semble-shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
  --semble-shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
  --semble-shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
  
  /* Transitions */
  --semble-transition: all 0.2s ease;
}

/* ==========================================================================
   2. BASE STYLES & TYPOGRAPHY
   ========================================================================== */

/* Base Typography */
.semble-text {
  font-family: var(--semble-font-family);
  font-size: var(--semble-font-size-base);
  line-height: 1.6;
  color: var(--semble-gray-700);
}

.semble-text--small {
  font-size: var(--semble-font-size-sm);
  color: var(--semble-gray-500);
}

.semble-text--large {
  font-size: var(--semble-font-size-lg);
}

/* Links */
.semble-link {
  color: var(--semble-primary);
  text-decoration: none;
  transition: var(--semble-transition);
}

.semble-link:hover {
  color: var(--semble-primary-hover);
  text-decoration: underline;
}

/* Lists */
.semble-list {
  margin: 0;
  padding-left: var(--semble-spacing-lg);
}

.semble-list--error {
  color: var(--semble-red-800);
}

.semble-list li {
  margin-bottom: var(--semble-spacing-xs);
}

.semble-list li:last-child {
  margin-bottom: 0;
}

/* Headings */
.semble-heading {
  color: var(--semble-gray-800);
  font-weight: 600;
  line-height: 1.4;
  margin: 0 0 var(--semble-spacing-lg) 0;
}

.semble-heading--h3 {
  font-size: var(--semble-font-size-xl);
  text-align: center;
}

.semble-heading--h4 {
  font-size: var(--semble-font-size-lg);
  margin-bottom: var(--semble-spacing-md);
}

/* ==========================================================================
   3. LAYOUT FUNDAMENTALS
   ========================================================================== */

/* Container */
.semble-container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 var(--semble-spacing-lg);
}

/* Grid System */
.semble-grid {
  display: grid;
  gap: var(--semble-spacing-lg);
}

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

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

.semble-grid--auto-fit {
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--semble-spacing-xl);
  justify-content: center;
  align-items: stretch;
}

/* Flexbox Utilities */
.semble-flex {
  display: flex;
}

.semble-flex--center {
  align-items: center;
  justify-content: center;
}

.semble-flex--between {
  justify-content: space-between;
}

.semble-flex--wrap {
  flex-wrap: wrap;
}

.semble-flex--column {
  flex-direction: column;
}

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

/* Button System */
.semble-button {
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  background-color: var(--semble-primary) !important;
  color: var(--semble-white) !important;
  border: none !important;
  border-radius: var(--semble-radius-lg) !important;
  padding: 12px 28px !important;
  font-size: 0.8em !important;
  font-weight: 500 !important;
  cursor: pointer !important;
  white-space: nowrap !important;
  transition: var(--semble-transition) !important;
  text-decoration: none !important;
  outline: none !important;
}

.semble-button:hover {
  background-color: var(--semble-primary-hover) !important;
}

.semble-button:active {
  background-color: var(--semble-primary-active);
}

.semble-button--secondary {
  background-color: var(--semble-secondary);
}

.semble-button--secondary:hover {
  background-color: var(--semble-secondary-hover);
}

.semble-button--small {
  padding: var(--semble-spacing-sm) var(--semble-spacing-xl);
  font-size: var(--semble-font-size-xs);
}

.semble-button--large {
  padding: var(--semble-spacing-lg) var(--semble-spacing-4xl);
  font-size: var(--semble-font-size-lg);
}

/* Login Button - Clone of semble-button styling */
.semble-login-button {
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  background-color: var(--semble-primary) !important;
  color: var(--semble-white) !important;
  border: none !important;
  border-radius: var(--semble-radius-lg) !important;
  padding: 12px 28px !important;
  font-size: 0.8em !important;
  font-weight: 500 !important;
  cursor: pointer !important;
  white-space: nowrap !important;
  transition: var(--semble-transition) !important;
  text-decoration: none !important;
  outline: none !important;
}

.semble-login-button:hover {
  background-color: var(--semble-primary-hover) !important;
}

.semble-login-button:active {
  background-color: var(--semble-primary-active);
}

/* Card System */
.semble-card {
  background: var(--semble-white);
  border: 2px solid var(--semble-gray-200);
  border-radius: var(--semble-radius-md);
  padding: var(--semble-spacing-lg);
  transition: var(--semble-transition);
  position: relative;
  display: flex;
  flex-direction: column;
}

.semble-card:hover {
  border-color: var(--semble-gray-300);
  box-shadow: var(--semble-shadow-md);
}

.semble-card--selected {
  border-color: var(--semble-primary);
  background: var(--semble-gray-50);
  box-shadow: 0 0 0 3px rgba(13, 75, 107, 0.1);
}

.semble-card__header {
  margin-bottom: var(--semble-spacing-lg);
}

.semble-card__title {
  color: var(--semble-gray-800);
  font-size: var(--semble-font-size-lg);
  font-weight: 600;
  margin: 0 0 var(--semble-spacing-md) 0;
  line-height: 1.4;
}

.semble-card__content {
  flex: 1;
}

.semble-card__actions {
  margin-top: var(--semble-spacing-lg);
  display: flex;
  gap: var(--semble-spacing-md);
  justify-content: center;
}

/* Blue Info Card Variant with Green Accent */
.semble-card--info {
  background: #f8fbff;
  border: 1px solid #e3f2fd;
  border-left: 4px solid #ADE3DB;
  padding: var(--semble-spacing-xl) var(--semble-spacing-2xl);
}

.semble-card--info .semble-card__content {
  display: flex;
  align-items: flex-start;
  gap: var(--semble-spacing-md);
}

.semble-card--info .semble-card__icon {
  color: #2196f3;
  font-size: 18px;
  margin-top: 2px;
  flex-shrink: 0;
}

.semble-card--info .semble-card__title,
.semble-card--info .semble-heading {
  color: var(--semble-gray-800);
  font-weight: 600;
  margin-bottom: var(--semble-spacing-sm);
}

.semble-card--info .semble-text {
  color: #424242;
  font-size: 14px;
  line-height: 1.4;
  margin-bottom: var(--semble-spacing-md);
}

.semble-card--info .semble-link {
  font-size: 14px;
  font-weight: 500;
}

/* Form Elements */
.semble-form {
  display: flex;
  flex-direction: column;
  gap: var(--semble-spacing-lg);
}

.semble-form__row {
  display: flex;
  flex-direction: column;
  gap: var(--semble-spacing-sm);
}

.semble-form__label {
  color: var(--semble-gray-600);
  font-weight: 500;
  font-size: var(--semble-font-size-sm);
}

.semble-form__input {
  padding: var(--semble-spacing-md);
  border: 2px solid var(--semble-gray-200);
  border-radius: var(--semble-radius-sm);
  font-family: inherit;
  font-size: var(--semble-font-size-base);
  background: var(--semble-white);
  transition: var(--semble-transition);
}

.semble-form__input:focus {
  outline: none;
  border-color: var(--semble-primary);
  box-shadow: 0 0 0 3px rgba(13, 75, 107, 0.1);
}

.semble-form__input--readonly {
  background: var(--semble-gray-50);
  color: var(--semble-gray-600);
}

/* ==========================================================================
   5. UTILITY CLASSES
   ========================================================================== */

/* Display */
.semble-hidden {
  display: none;
}

.semble-block {
  display: block;
}

.semble-inline-block {
  display: inline-block;
}

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

.semble-text-left {
  text-align: left;
}

.semble-text-right {
  text-align: right;
}

/* Spacing */
.semble-margin-0 {
  margin: 0;
}

.semble-margin-bottom {
  margin-bottom: var(--semble-spacing-lg);
}

.semble-margin-top {
  margin-top: var(--semble-spacing-5xl);
}

.semble-margin-top-large {
  margin-top: 120px;
}

.semble-padding {
  padding: var(--semble-spacing-lg);
}

/* Loading States */
.semble-loading {
  text-align: center;
  padding: var(--semble-spacing-5xl);
  color: var(--semble-gray-500);
  font-size: var(--semble-font-size-lg);
}

.semble-spinner {
  display: inline-block;
  width: 40px;
  height: 40px;
  border: 4px solid var(--semble-gray-200);
  border-top: 4px solid var(--semble-primary);
  border-radius: 50%;
  animation: semble-spin 1s linear infinite;
  margin-bottom: var(--semble-spacing-lg);
}

@keyframes semble-spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* Fade in animation for linked account prompt */
@keyframes fadeInSlide {
  0% {
    opacity: 0;
    max-height: 0;
    margin-bottom: 0;
    padding-top: 0;
    padding-bottom: 0;
    transform: translateY(-10px);
  }
  100% {
    opacity: 1;
    max-height: 200px;
    margin-bottom: 40px;
    padding-top: inherit;
    padding-bottom: inherit;
    transform: translateY(0);
  }
}

/* Animation class for linked account prompt */
.semble-fade-in {
  animation: fadeInSlide 0.8s ease-out forwards;
  overflow: hidden;
}

/* Initial state for linked account prompt to prevent layout jump */
#semble-linked-account-prompt {
  max-height: 0;
  margin-bottom: 0;
  overflow: hidden;
  transition: none;
}

/* Status Messages */
.semble-message {
  padding: var(--semble-spacing-lg);
  border-radius: var(--semble-radius-sm);
  text-align: center;
  margin: var(--semble-spacing-lg) 0;
}

.semble-message--success {
  background: var(--semble-success-bg);
  border: 1px solid var(--semble-success);
  color: var(--semble-success-text);
}

.semble-message--error {
  background: var(--semble-error-bg);
  border: 1px solid var(--semble-error);
  color: var(--semble-error-text);
}

/* ==========================================================================
   6. RESPONSIVE DESIGN
   ========================================================================== */

/* Tablet */
@media (max-width: 1024px) {
  .semble-grid--3-cols {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Mobile */
@media (max-width: 768px) {
  .semble-container {
    padding: 0 var(--semble-spacing-md);
  }
  
  .semble-grid--2-cols,
  .semble-grid--3-cols {
    grid-template-columns: 1fr;
  }
  
  .semble-flex--between {
    flex-direction: column;
    align-items: center;
    gap: var(--semble-spacing-md);
  }
  
  .semble-card__actions {
    flex-direction: column;
    align-items: center;
    gap: var(--semble-spacing-md);
  }
}

/* Small Mobile */
@media (max-width: 480px) {
  .semble-card {
    padding: var(--semble-spacing-md);
  }
  
  .semble-button {
    padding: var(--semble-spacing-sm) var(--semble-spacing-xl);
  }
}