/* ============================================
   DHA Directory Grid Theme - Main Stylesheet
   ============================================ */

/* ===========================================
   CSS Custom Properties (Semantic Variables)
   =========================================== */
:root {
  /* Primary - Deep Blue (directory brand color) */
  --color-primary-50: #eff6ff;
  --color-primary-100: #dbeafe;
  --color-primary-200: #bfdbfe;
  --color-primary-300: #93c5fd;
  --color-primary-400: #60a5fa;
  --color-primary-500: #3b82f6;
  --color-primary-600: #2563eb;
  --color-primary-700: #1d4ed8;
  --color-primary-800: #1e40af;
  --color-primary-900: #1e3a8a;
  --color-primary-950: #172554;

  /* Accent - Emerald (success, highlights) */
  --color-accent-50: #ecfdf5;
  --color-accent-100: #d1fae5;
  --color-accent-200: #a7f3d0;
  --color-accent-300: #6ee7b7;
  --color-accent-400: #34d399;
  --color-accent-500: #10b981;
  --color-accent-600: #059669;
  --color-accent-700: #047857;
  --color-accent-800: #065f46;
  --color-accent-900: #064e3b;
  --color-accent-950: #022c22;

  /* Neutral - Slate grays */
  --color-neutral-50: #f8fafc;
  --color-neutral-100: #f1f5f9;
  --color-neutral-200: #e2e8f0;
  --color-neutral-300: #cbd5e1;
  --color-neutral-400: #94a3b8;
  --color-neutral-500: #64748b;
  --color-neutral-600: #475569;
  --color-neutral-700: #334155;
  --color-neutral-800: #1e293b;
  --color-neutral-900: #0f172a;
  --color-neutral-950: #020617;

  /* Warm - Amber (ratings, warnings) */
  --color-warm-400: #fbbf24;
  --color-warm-500: #f59e0b;
  --color-warm-600: #d97706;

  /* Base colors */
  --color-white: #ffffff;
  --color-black: #000000;

  /* Semantic tokens */
  --color-bg-page: var(--color-neutral-50);
  --color-bg-card: var(--color-white);
  --color-bg-muted: var(--color-neutral-100);
  --color-text-primary: var(--color-neutral-900);
  --color-text-secondary: var(--color-neutral-600);
  --color-text-muted: var(--color-neutral-500);
  --color-link: var(--color-primary-600);
  --color-link-hover: var(--color-primary-700);
  --color-border: var(--color-neutral-200);
  --color-border-light: var(--color-neutral-100);

  /* Feedback colors */
  --color-success: var(--color-accent-600);
  --color-warning: var(--color-warm-500);
  --color-error: #dc2626;
  --color-rating: var(--color-warm-400);

  /* Typography */
  --font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  --font-size-4xl: 2.5rem;

  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;

  /* Border radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 200ms ease;
  --transition-slow: 300ms ease;
}

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

* {
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--color-text-primary);
  background-color: var(--color-bg-page);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: var(--color-link);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-link-hover);
}

h1, h2, h3, h4, h5, h6 {
  line-height: 1.3;
  font-weight: 700;
  color: var(--color-text-primary);
}

/* ===========================================
   Layout Components
   =========================================== */
.dha-container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.dha-main {
  min-height: 100vh;
}

.dha-section {
  padding: var(--spacing-3xl) 0;
}

.dha-section--gray {
  background-color: var(--color-bg-muted);
}

.dha-section__header {
  text-align: center;
  margin-bottom: var(--spacing-2xl);
}

.dha-section__header h2 {
  font-size: var(--font-size-3xl);
  margin-bottom: var(--spacing-sm);
}

.dha-section__header p {
  color: var(--color-text-secondary);
  font-size: var(--font-size-lg);
}

.dha-section__footer {
  text-align: center;
  margin-top: var(--spacing-2xl);
}

/* ===========================================
   Header
   =========================================== */
.dha-header {
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.dha-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
  gap: var(--spacing-lg);
}

.dha-header__logo {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-primary-600);
}

.dha-header__logo:hover {
  color: var(--color-primary-700);
}

.dha-header__nav {
  display: flex;
  gap: var(--spacing-lg);
}

.dha-header__nav a {
  color: var(--color-text-secondary);
  font-weight: 500;
  padding: var(--spacing-sm) 0;
}

.dha-header__nav a:hover {
  color: var(--color-primary-600);
}

.dha-header__actions {
  display: flex;
  gap: var(--spacing-md);
}

.dha-header__mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--spacing-sm);
  background: none;
  border: none;
  cursor: pointer;
}

.dha-header__mobile-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text-primary);
  transition: var(--transition-base);
}

@media (max-width: 768px) {
  .dha-header__nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-white);
    flex-direction: column;
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-lg);
  }

  .dha-header__nav--mobile-open {
    display: flex;
  }

  .dha-header__actions {
    display: none;
  }

  .dha-header__mobile-toggle {
    display: flex;
  }
}

/* ===========================================
   Buttons
   =========================================== */
.dha-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-lg);
  font-size: var(--font-size-sm);
  font-weight: 600;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.dha-btn--primary {
  background: var(--color-primary-600);
  color: var(--color-white);
}

.dha-btn--primary:hover {
  background: var(--color-primary-700);
  color: var(--color-white);
}

.dha-btn--outline {
  background: transparent;
  color: var(--color-primary-600);
  border: 2px solid var(--color-primary-600);
}

.dha-btn--outline:hover {
  background: var(--color-primary-600);
  color: var(--color-white);
}

.dha-btn--white {
  background: var(--color-white);
  color: var(--color-primary-600);
}

.dha-btn--white:hover {
  background: var(--color-neutral-100);
  color: var(--color-primary-700);
}

.dha-btn--sm {
  padding: var(--spacing-xs) var(--spacing-md);
  font-size: var(--font-size-xs);
}

.dha-btn--lg {
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: var(--font-size-base);
}

/* ===========================================
   Hero Section
   =========================================== */
.dha-hero {
  background: linear-gradient(135deg, var(--color-primary-600) 0%, var(--color-primary-800) 100%);
  color: var(--color-white);
  padding: var(--spacing-3xl) 0;
}

.dha-hero__content {
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.dha-hero__title {
  font-size: var(--font-size-4xl);
  margin-bottom: var(--spacing-md);
  color: var(--color-white);
}

.dha-hero__subtitle {
  font-size: var(--font-size-lg);
  opacity: 0.9;
  margin-bottom: var(--spacing-xl);
}

.dha-hero__stats {
  display: flex;
  justify-content: center;
  gap: var(--spacing-xl);
  margin-top: var(--spacing-xl);
  font-size: var(--font-size-sm);
  opacity: 0.9;
}

.dha-hero__stats strong {
  display: block;
  font-size: var(--font-size-xl);
}

@media (max-width: 768px) {
  .dha-hero__title {
    font-size: var(--font-size-3xl);
  }

  .dha-hero__stats {
    flex-direction: column;
    gap: var(--spacing-md);
  }
}

/* ===========================================
   Search Form
   =========================================== */
.dha-search-form {
  background: var(--color-white);
  padding: var(--spacing-md);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
}

.dha-search-form__row {
  display: flex;
  gap: var(--spacing-md);
}

.dha-search-form__field {
  flex: 1;
  position: relative;
}

.dha-search-form__field svg {
  position: absolute;
  left: var(--spacing-md);
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-muted);
}

.dha-search-form__field input {
  width: 100%;
  padding: var(--spacing-md);
  padding-left: calc(var(--spacing-md) * 2 + 20px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--font-size-base);
  color: var(--color-text-primary);
}

.dha-search-form__field input:focus {
  outline: none;
  border-color: var(--color-primary-500);
  box-shadow: 0 0 0 3px var(--color-primary-100);
}

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

.dha-search-form .dha-btn {
  flex-shrink: 0;
}

@media (max-width: 768px) {
  .dha-search-form__row {
    flex-direction: column;
  }

  .dha-search-form .dha-btn {
    width: 100%;
  }
}

/* ===========================================
   Categories Grid
   =========================================== */
.dha-categories-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-lg);
}

.dha-category-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: var(--spacing-xl);
  background: var(--color-white);
  border-radius: var(--radius-lg);
  text-align: center;
  transition: all var(--transition-base);
  border: 1px solid var(--color-border-light);
}

.dha-category-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary-200);
}

.dha-category-card__icon {
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary-50);
  color: var(--color-primary-600);
  border-radius: var(--radius-lg);
  margin-bottom: var(--spacing-md);
}

.dha-category-card h3 {
  font-size: var(--font-size-base);
  margin-bottom: var(--spacing-xs);
  color: var(--color-text-primary);
}

.dha-category-card span {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.dha-category-card--all {
  background: var(--color-primary-50);
  border-color: var(--color-primary-100);
}

.dha-category-card--all .dha-category-card__icon {
  background: var(--color-primary-100);
}

@media (max-width: 992px) {
  .dha-categories-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .dha-categories-grid {
    grid-template-columns: 1fr;
  }
}

/* ===========================================
   Listings Grid
   =========================================== */
.dha-listings-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
}

.dha-listing-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-base);
  border: 1px solid var(--color-border-light);
}

.dha-listing-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.dha-listing-card__image {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
}

.dha-listing-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.dha-listing-card:hover .dha-listing-card__image img {
  transform: scale(1.05);
}

.dha-listing-card__badge {
  position: absolute;
  top: var(--spacing-md);
  left: var(--spacing-md);
  background: var(--color-accent-600);
  color: var(--color-white);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-xs);
  font-weight: 600;
}

.dha-listing-card__content {
  padding: var(--spacing-lg);
}

.dha-listing-card__category {
  font-size: var(--font-size-xs);
  color: var(--color-primary-600);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--spacing-xs);
}

.dha-listing-card__title {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-sm);
}

.dha-listing-card__title a {
  color: var(--color-text-primary);
}

.dha-listing-card__title a:hover {
  color: var(--color-primary-600);
}

.dha-listing-card__location {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-md);
}

.dha-listing-card__location svg {
  flex-shrink: 0;
}

.dha-listing-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--color-border-light);
}

@media (max-width: 992px) {
  .dha-listings-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .dha-listings-grid {
    grid-template-columns: 1fr;
  }
}

/* ===========================================
   Rating
   =========================================== */
.dha-rating {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  color: var(--color-rating);
}

.dha-rating span {
  color: var(--color-text-secondary);
  font-weight: 600;
}

.dha-rating--sm {
  font-size: var(--font-size-sm);
}

.dha-stars {
  display: flex;
  gap: 2px;
}

.dha-star {
  color: var(--color-rating);
}

.dha-star--empty {
  color: var(--color-neutral-300);
}

/* ===========================================
   Steps / How It Works
   =========================================== */
.dha-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-xl);
  text-align: center;
}

.dha-step {
  padding: var(--spacing-xl);
}

.dha-step__number {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary-600);
  color: var(--color-white);
  font-size: var(--font-size-xl);
  font-weight: 700;
  border-radius: var(--radius-full);
  margin: 0 auto var(--spacing-lg);
}

.dha-step h3 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-sm);
}

.dha-step p {
  color: var(--color-text-secondary);
}

@media (max-width: 768px) {
  .dha-steps {
    grid-template-columns: 1fr;
  }
}

/* ===========================================
   CTA Banner
   =========================================== */
.dha-cta-banner {
  background: linear-gradient(135deg, var(--color-primary-700) 0%, var(--color-primary-900) 100%);
  color: var(--color-white);
  padding: var(--spacing-3xl) 0;
  text-align: center;
}

.dha-cta-banner__content h2 {
  font-size: var(--font-size-3xl);
  margin-bottom: var(--spacing-md);
  color: var(--color-white);
}

.dha-cta-banner__content p {
  font-size: var(--font-size-lg);
  opacity: 0.9;
  margin-bottom: var(--spacing-xl);
}

/* ===========================================
   Page Header
   =========================================== */
.dha-page-header {
  background: var(--color-primary-50);
  padding: var(--spacing-2xl) 0;
  text-align: center;
}

.dha-page-header h1 {
  font-size: var(--font-size-3xl);
  margin-bottom: var(--spacing-sm);
}

.dha-page-header p {
  color: var(--color-text-secondary);
}

/* ===========================================
   Pagination
   =========================================== */
.dha-pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-lg);
  margin-top: var(--spacing-2xl);
}

.dha-pagination__link {
  padding: var(--spacing-sm) var(--spacing-lg);
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-weight: 500;
}

.dha-pagination__link:hover {
  background: var(--color-primary-50);
  border-color: var(--color-primary-200);
}

.dha-pagination__info {
  color: var(--color-text-secondary);
}

/* ===========================================
   Listing Detail
   =========================================== */
.dha-listing-detail {
  display: grid;
  grid-template-columns: 1fr 350px;
  gap: var(--spacing-xl);
}

.dha-listing-detail__image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: var(--spacing-xl);
}

.dha-listing-detail__image img {
  width: 100%;
  height: auto;
}

.dha-listing-detail__content h1 {
  font-size: var(--font-size-3xl);
  margin-bottom: var(--spacing-md);
}

.dha-listing-detail__description {
  color: var(--color-text-secondary);
  line-height: 1.8;
}

.dha-badge {
  display: inline-block;
  background: var(--color-primary-100);
  color: var(--color-primary-700);
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: 500;
  margin-bottom: var(--spacing-md);
}

.dha-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.dha-card h3 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-md);
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--color-border-light);
}

.dha-card p {
  margin-bottom: var(--spacing-sm);
  color: var(--color-text-secondary);
}

@media (max-width: 992px) {
  .dha-listing-detail {
    grid-template-columns: 1fr;
  }
}

/* ===========================================
   Footer
   =========================================== */
.dha-footer {
  background: var(--color-neutral-900);
  color: var(--color-neutral-300);
  padding: var(--spacing-3xl) 0 var(--spacing-xl);
}

.dha-footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--spacing-2xl);
  margin-bottom: var(--spacing-2xl);
}

.dha-footer__brand h3 {
  font-size: var(--font-size-xl);
  color: var(--color-white);
  margin-bottom: var(--spacing-md);
}

.dha-footer__brand p {
  line-height: 1.7;
}

.dha-footer__links h4,
.dha-footer__contact h4 {
  font-size: var(--font-size-base);
  color: var(--color-white);
  margin-bottom: var(--spacing-lg);
}

.dha-footer__links ul {
  list-style: none;
}

.dha-footer__links li {
  margin-bottom: var(--spacing-sm);
}

.dha-footer__links a {
  color: var(--color-neutral-400);
}

.dha-footer__links a:hover {
  color: var(--color-white);
}

.dha-footer__contact p {
  margin-bottom: var(--spacing-sm);
}

.dha-footer__bottom {
  padding-top: var(--spacing-xl);
  border-top: 1px solid var(--color-neutral-800);
  text-align: center;
  font-size: var(--font-size-sm);
  color: var(--color-neutral-500);
}

@media (max-width: 992px) {
  .dha-footer__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .dha-footer__grid {
    grid-template-columns: 1fr;
  }
}