/**
 * WP-Agent Design System v2.0 - Variant B Components
 * 
 * Ready-to-use CSS component classes
 * Import after _variables.scss
 * 
 * @package WPAgent
 * @since 2.0.0
 */

/* ============================================
   BASE LAYER - Typography & Elements
   ============================================ */

@layer base {

  body {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--neutral-600);
    background-color: var(--surface-muted);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
  }

  h1,
  h2,
  h3,
  h4,
  h5,
  h6 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.25;
    color: var(--neutral-800);
    margin-bottom: 1rem;
  }

  h1 {
    font-size: 2.25rem;
    letter-spacing: -0.025em;
  }

  h2 {
    font-size: 1.875rem;
    letter-spacing: -0.025em;
  }

  h3 {
    font-size: 1.5rem;
  }

  h4 {
    font-size: 1.25rem;
  }

  h5 {
    font-size: 1.125rem;
    font-weight: 600;
  }

  h6 {
    font-size: 1rem;
    font-weight: 600;
  }

  p {
    margin-bottom: 1rem;
  }

  a {
    color: var(--primary-600);
    text-decoration: none;
    transition: color 150ms ease;
  }

  a:hover {
    color: var(--primary-700);
  }

  /* Selection */
  ::selection {
    background-color: var(--primary-200);
    color: var(--primary-900);
  }
}


/* ============================================
   COMPONENT LAYER - Variant B Styles
   ============================================ */

@layer components {

  /* ------------------------------------------
     LAYOUT
     ------------------------------------------ */

  .container {
    width: 100%;
    max-width: 1280px;
    margin-inline: auto;
    padding-inline: 1.5rem;
  }

  .section {
    padding-block: 5rem;
  }

  .section-sm {
    padding-block: 3rem;
  }

  .section-lg {
    padding-block: 7rem;
  }


  /* ------------------------------------------
     BUTTONS - VARIANT B
     ------------------------------------------ */

  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    font-family: var(--font-body);
    font-size: 0.9375rem;
    font-weight: 600;
    line-height: 1;
    text-decoration: none;
    border: 2px solid var(--neutral-800);
    border-radius: 0.75rem;
    cursor: pointer;
    transition: all 200ms ease;
  }

  .btn:focus {
    outline: none;
    box-shadow: var(--shadow-ring-purple);
  }

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

  /* Primary - Purple with glow */
  .btn-primary {
    background-color: var(--primary-600);
    color: white;
    border-color: var(--primary-600);
  }

  .btn-primary:hover:not(:disabled) {
    background-color: var(--primary-700);
    border-color: var(--primary-700);
    box-shadow: var(--shadow-glow-purple);
    transform: translateY(-2px);
  }

  /* Primary Gradient variant */
  .btn-primary-gradient {
    background: var(--gradient-primary);
    color: white;
    border-color: var(--primary-600);
  }

  .btn-primary-gradient:hover:not(:disabled) {
    background: linear-gradient(135deg, var(--primary-600), var(--primary-700));
    box-shadow: var(--shadow-glow-purple);
    transform: translateY(-2px);
  }

  /* Secondary - Outline */
  .btn-secondary {
    background-color: transparent;
    color: var(--neutral-700);
  }

  .btn-secondary:hover:not(:disabled) {
    background-color: var(--neutral-900);
    color: white;
    border-color: var(--neutral-900);
  }

  /* Ghost */
  .btn-ghost {
    background-color: transparent;
    color: var(--neutral-700);
    border-color: transparent;
  }

  .btn-ghost:hover:not(:disabled) {
    background-color: var(--neutral-100);
  }

  /* Button sizes */
  .btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
  }

  .btn-lg {
    padding: 1rem 2rem;
    font-size: 1.125rem;
  }

  /* Pill variant */
  .btn-pill {
    border-radius: 9999px;
  }

  /* Icon button */
  .btn-icon {
    width: 44px;
    height: 44px;
    padding: 0;
    border-radius: 0.75rem;
  }

  .btn-icon.btn-pill {
    border-radius: 50%;
  }

  /* Button icons */
  .btn svg,
  .btn i {
    width: 1.125rem;
    height: 1.125rem;
    flex-shrink: 0;
  }


  /* ------------------------------------------
     CARDS - VARIANT B
     ------------------------------------------ */

  .card {
    background-color: white;
    border: 2px solid var(--neutral-800);
    border-radius: 1rem;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
  }

  .card-interactive {
    transition: transform 200ms ease, box-shadow 200ms ease;
  }

  .card-interactive:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.12);
  }

  .card-highlight {
    border-color: var(--primary-500);
    background: linear-gradient(135deg, white, var(--primary-50));
  }

  .card-highlight:hover {
    box-shadow: var(--shadow-glow-purple-subtle);
  }

  /* Card with light border */
  .card-light {
    background-color: white;
    border: 1px solid var(--neutral-200);
    border-radius: 1rem;
    box-shadow: var(--shadow-card);
  }

  .card-body {
    padding: 1.5rem;
  }

  .card-header {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--neutral-200);
  }

  .card-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--neutral-200);
    background-color: var(--neutral-50);
  }

  .card-title {
    font-family: var(--font-display);
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--neutral-800);
    margin-bottom: 0.5rem;
  }

  .card-text {
    color: var(--neutral-500);
    font-size: 0.9375rem;
    line-height: 1.6;
  }

  .card-icon {
    width: 48px;
    height: 48px;
    background-color: var(--primary-600);
    border-radius: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    margin-bottom: 1rem;
    transition: all 200ms ease;
  }

  .card-interactive:hover .card-icon {
    background-color: var(--primary-700);
    box-shadow: var(--shadow-glow-purple-subtle);
  }




  /* ------------------------------------------
     BADGES - VARIANT B
     ------------------------------------------ */

  .badge {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.25rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 9999px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
  }

  /* Badge with dark border */
  .badge-outline {
    background-color: white;
    border: 1.5px solid var(--neutral-800);
    color: var(--neutral-800);
  }

  .badge-primary {
    background-color: rgba(139, 92, 246, 0.12);
    color: var(--primary-700);
  }

  .badge-success {
    background-color: var(--success-100);
    color: var(--success-700);
  }

  .badge-warning {
    background-color: var(--warning-100);
    color: var(--warning-700);
  }

  .badge-error {
    background-color: var(--error-100);
    color: var(--error-700);
  }

  .badge-info {
    background-color: var(--info-100);
    color: var(--info-700);
  }

  /* Accent badges */
  .badge-cyan {
    background-color: rgba(6, 182, 212, 0.12);
    color: #0891b2;
  }

  .badge-pink {
    background-color: rgba(236, 72, 153, 0.12);
    color: #db2777;
  }

  .badge svg,
  .badge i {
    width: 0.875rem;
    height: 0.875rem;
    color: var(--primary-500);
  }


  /* ------------------------------------------
     CHIPS - VARIANT B
     ------------------------------------------ */

  .chip {
    display: inline-flex;
    align-items: center;
    padding: 0.5rem 0.875rem;
    font-size: 0.8125rem;
    font-weight: 500;
    border-radius: 9999px;
    cursor: pointer;
    transition: all 150ms ease;
  }

  /* Chip with dark border - SIGNATURE STYLE */
  .chip-dark {
    background-color: white;
    border: 1.5px solid var(--neutral-800);
    color: var(--neutral-700);
  }

  .chip-dark:hover {
    background-color: var(--neutral-900);
    color: white;
    border-color: var(--neutral-900);
    transform: translateY(-1px);
  }

  /* Active/selected chip */
  .chip-dark.active,
  .chip-dark[aria-selected="true"] {
    background-color: var(--neutral-900);
    color: white;
    border-color: var(--neutral-900);
  }

  /* Chip light variant */
  .chip-light {
    background-color: white;
    border: 1px solid var(--neutral-200);
    color: var(--neutral-600);
  }

  .chip-light:hover {
    border-color: var(--primary-300);
    background-color: var(--primary-50);
    color: var(--primary-700);
  }


  /* ------------------------------------------
     FORMS - VARIANT B
     ------------------------------------------ */

  .form-group {
    margin-bottom: 1rem;
  }

  .form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--neutral-700);
    margin-bottom: 0.5rem;
  }

  .form-input {
    width: 100%;
    padding: 0.75rem 1rem;
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--neutral-800);
    background-color: white;
    border: 2px solid var(--neutral-800);
    border-radius: 0.75rem;
    transition: border-color 150ms ease, box-shadow 150ms ease;
  }

  .form-input:focus {
    outline: none;
    border-color: var(--primary-600);
    box-shadow: var(--shadow-ring-purple);
  }

  .form-input::placeholder {
    color: var(--neutral-400);
  }

  .form-input:disabled {
    background-color: var(--neutral-50);
    color: var(--neutral-400);
    cursor: not-allowed;
  }

  /* Input with light border */
  .form-input-light {
    border: 1px solid var(--neutral-300);
  }

  .form-input-light:focus {
    border-color: var(--primary-500);
  }

  /* Textarea */
  textarea.form-input {
    min-height: 120px;
    resize: vertical;
  }

  /* Select */
  select.form-input {
    appearance: none;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e");
    background-position: right 0.75rem center;
    background-repeat: no-repeat;
    background-size: 1.25rem;
    padding-right: 2.5rem;
  }

  /* Search box */
  .search-box {
    display: flex;
    align-items: center;
    background-color: white;
    border: 2px solid var(--neutral-800);
    border-radius: 0.875rem;
    padding: 0.375rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.07);
    transition: all 200ms ease;
  }

  .search-box:focus-within {
    border-color: var(--primary-600);
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1), var(--shadow-ring-purple);
  }

  .search-box .search-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    color: var(--neutral-400);
    flex-shrink: 0;
  }

  .search-box .search-input {
    flex: 1;
    border: none;
    background: transparent;
    padding: 0.5rem;
    font-size: 1rem;
    color: var(--neutral-800);
    outline: none;
  }

  .search-box .search-input::placeholder {
    color: var(--neutral-400);
  }

  .search-box .search-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background-color: var(--primary-600);
    color: white;
    border: none;
    border-radius: 0.625rem;
    cursor: pointer;
    transition: all 200ms ease;
  }

  .search-box .search-btn:hover {
    background-color: var(--primary-700);
    box-shadow: var(--shadow-glow-purple);
    transform: scale(1.05);
  }


  /* ------------------------------------------
     ACCORDION - VARIANT B
     ------------------------------------------ */

  .accordion {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
  }

  .accordion-item {
    background-color: white;
    border: 2px solid var(--neutral-800);
    border-radius: 0.75rem;
    overflow: hidden;
  }

  .accordion-header {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.5rem;
    background: transparent;
    border: none;
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 600;
    color: var(--neutral-800);
    cursor: pointer;
    transition: background-color 150ms ease;
  }

  .accordion-header:hover {
    background-color: var(--neutral-50);
  }

  .accordion-icon {
    width: 20px;
    height: 20px;
    transition: transform 200ms ease;
  }

  .accordion-item.open .accordion-icon {
    transform: rotate(180deg);
  }

  .accordion-content {
    padding: 0 1.5rem 1.5rem;
    color: var(--neutral-600);
  }


  /* ------------------------------------------
     ALERTS - VARIANT B
     ------------------------------------------ */

  .alert {
    display: flex;
    gap: 0.75rem;
    padding: 1rem 1.25rem;
    border-radius: 0.75rem;
    border: 2px solid;
  }

  .alert-icon {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
  }

  .alert-content {
    flex: 1;
  }

  .alert-title {
    font-weight: 600;
    margin-bottom: 0.25rem;
  }

  .alert-success {
    background-color: var(--success-50);
    border-color: var(--success-500);
    color: var(--success-700);
  }

  .alert-warning {
    background-color: var(--warning-50);
    border-color: var(--warning-500);
    color: var(--warning-700);
  }

  .alert-error {
    background-color: var(--error-50);
    border-color: var(--error-500);
    color: var(--error-700);
  }

  .alert-info {
    background-color: var(--info-50);
    border-color: var(--info-500);
    color: var(--info-700);
  }


  /* ------------------------------------------
     DARK SECTION
     ------------------------------------------ */

  .dark-section {
    background: var(--gradient-dark-section);
    color: white;
  }

  .dark-section h1,
  .dark-section h2,
  .dark-section h3,
  .dark-section h4,
  .dark-section h5,
  .dark-section h6 {
    color: white;
  }

  .dark-section p {
    color: var(--neutral-300);
  }

  .dark-section a {
    color: var(--primary-400);
  }

  .dark-section a:hover {
    color: var(--primary-300);
  }

  /* Button on dark */
  .dark-section .btn-on-dark {
    background-color: white;
    color: var(--neutral-900);
    border-color: white;
  }

  .dark-section .btn-on-dark:hover {
    background-color: var(--neutral-100);
    transform: translateY(-2px);
  }

  .dark-section .btn-outline-dark {
    background-color: transparent;
    color: white;
    border-color: rgba(255, 255, 255, 0.3);
  }

  .dark-section .btn-outline-dark:hover {
    border-color: var(--primary-400);
    color: var(--primary-400);
  }


  /* ------------------------------------------
     TYPOGRAPHY UTILITIES
     ------------------------------------------ */

  .text-gradient {
    background: var(--gradient-primary-to-cyan);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
  }

  .heading-hero {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 2.875rem);
    font-weight: 800;
    line-height: 1.12;
    letter-spacing: -0.025em;
    color: var(--neutral-900);
  }

  .heading-xl {
    font-family: var(--font-display);
    font-size: 2.25rem;
    font-weight: 700;
    line-height: 1.2;
    color: var(--neutral-800);
  }

  .heading-lg {
    font-family: var(--font-display);
    font-size: 1.875rem;
    font-weight: 700;
    line-height: 1.25;
    color: var(--neutral-800);
  }

  .heading-md {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
    line-height: 1.3;
    color: var(--neutral-700);
  }

  .heading-sm {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 600;
    line-height: 1.4;
    color: var(--neutral-700);
  }

  .body-lg {
    font-size: 1.125rem;
    line-height: 1.6;
    color: var(--neutral-600);
  }

  .body-sm {
    font-size: 0.875rem;
    line-height: 1.5;
    color: var(--neutral-500);
  }

  .label {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--neutral-500);
  }




  /* ------------------------------------------
     ANIMATION UTILITIES
     ------------------------------------------ */

  .animate-fade-in-up {
    animation: fadeInUp 0.5s ease forwards;
    opacity: 0;
  }

  .animate-delay-100 {
    animation-delay: 0.1s;
  }

  .animate-delay-200 {
    animation-delay: 0.2s;
  }

  .animate-delay-300 {
    animation-delay: 0.3s;
  }

  .animate-delay-400 {
    animation-delay: 0.4s;
  }

  .animate-delay-500 {
    animation-delay: 0.5s;
  }

  @keyframes fadeInUp {
    from {
      opacity: 0;
      transform: translateY(20px);
    }

    to {
      opacity: 1;
      transform: translateY(0);
    }
  }

  @keyframes fadeIn {
    from {
      opacity: 0;
    }

    to {
      opacity: 1;
    }
  }


  /* ------------------------------------------
     HOVER UTILITIES
     ------------------------------------------ */

  .hover-lift {
    transition: transform 200ms ease;
  }

  .hover-lift:hover {
    transform: translateY(-2px);
  }

  .hover-glow:hover {
    box-shadow: var(--shadow-glow-purple);
  }

}