/* ==========================================================================
   ÔM HOMESTAY ĐÀ NẴNG - HOMEPAGE STYLES
   UI/UX PRO MAX - 100% VANILLA CSS
   ========================================================================== */

/* Hero Section */
.hero {
  position: relative;
  min-height: 580px;
  background: linear-gradient(180deg, rgba(23, 56, 50, 0.72) 0%, rgba(23, 56, 50, 0.45) 60%, rgba(250, 247, 242, 1) 100%),
              url('https://images.unsplash.com/photo-1578683010236-d716f9a3f461?auto=format&fit=crop&w=1600&q=80') center/cover no-repeat;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 80px 24px 120px;
  color: #ffffff;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.18);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  padding: 8px 18px;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #fef08a;
  border: 1px solid rgba(255, 255, 255, 0.3);
  margin-bottom: 20px;
}

.hero-tag svg {
  width: 16px;
  height: 16px;
}

.hero-title {
  font-size: 3.25rem;
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -0.03em;
  max-width: 860px;
  margin-bottom: 20px;
  text-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
}

.hero-title span {
  color: #fde68a;
  position: relative;
}

.hero-subtitle {
  font-size: 1.2rem;
  max-width: 680px;
  color: #f1f7f5;
  line-height: 1.6;
  margin-bottom: 36px;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

/* Floating Booking Widget */
.search-widget-wrapper {
  width: 100%;
  max-width: 1100px;
  margin: -60px auto 70px;
  padding: 0 24px;
  position: relative;
  z-index: 10;
}

.search-widget {
  background-color: var(--color-surface);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-border);
  padding: 24px 32px;
}

.search-form {
  display: grid;
  grid-template-columns: 1.2fr 1.2fr 1fr 1.2fr auto;
  gap: 16px;
  align-items: flex-end;
}

.search-field label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-text-muted);
  margin-bottom: 8px;
}

.search-field label svg {
  width: 15px;
  height: 15px;
  color: var(--color-primary);
}

.search-field input, .search-field select {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background-color: #fcfbfa;
  font-weight: 600;
  color: var(--color-text);
  outline: none;
  transition: all var(--transition-fast);
}

.search-field input:focus, .search-field select:focus {
  border-color: var(--color-primary);
  background-color: #ffffff;
  box-shadow: 0 0 0 3px rgba(23, 56, 50, 0.1);
}

.search-submit-btn {
  height: 48px;
  padding: 0 28px;
}

/* Section Common */
.section {
  padding: 70px 0;
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 50px;
}

.section-tag {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  margin-bottom: 10px;
}

.section-title {
  font-size: 2.25rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--color-primary);
  line-height: 1.25;
  margin-bottom: 16px;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* Features Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.feature-card {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  text-align: center;
}

.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary-light);
}

.feature-icon {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-md);
  background-color: var(--color-primary-light);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  transition: all var(--transition-fast);
}

.feature-card:hover .feature-icon {
  background-color: var(--color-primary);
  color: #ffffff;
}

.feature-icon svg {
  width: 32px;
  height: 32px;
}

.feature-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 10px;
}

.feature-desc {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* Featured Rooms Section */
.rooms-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.room-card {
  background-color: var(--color-surface);
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.room-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: #cbd5e1;
}

.room-card-img-wrap {
  position: relative;
  height: 240px;
  overflow: hidden;
}

.room-card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.room-card:hover .room-card-img {
  transform: scale(1.06);
}

.room-card-badge {
  position: absolute;
  top: 16px;
  left: 16px;
  z-index: 2;
}

.room-card-type {
  position: absolute;
  bottom: 16px;
  left: 16px;
  background: rgba(23, 56, 50, 0.85);
  backdrop-filter: blur(6px);
  color: #ffffff;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  font-weight: 600;
  z-index: 2;
}

.room-card-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.room-card-title {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: 10px;
  line-height: 1.3;
}

.room-card-title a:hover {
  color: var(--color-accent);
}

.room-card-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: 14px;
  padding-bottom: 14px;
  border-bottom: 1px dashed var(--color-border);
}

.room-card-meta-item {
  display: flex;
  align-items: center;
  gap: 5px;
}

.room-card-meta-item svg {
  width: 15px;
  height: 15px;
  color: var(--color-accent);
}

.room-card-desc {
  font-size: 0.88rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: 20px;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.room-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  border-top: 1px solid var(--color-border);
}

.room-card-price {
  display: flex;
  flex-direction: column;
}

.price-value {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--color-terracotta);
  line-height: 1;
}

.price-unit {
  font-size: 0.75rem;
  color: var(--color-text-light);
  margin-top: 4px;
}

.section-cta-wrap {
  text-align: center;
  margin-top: 48px;
}

/* Danang Experience Banner */
.experience-banner {
  background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
  border-radius: var(--radius-xl);
  padding: 60px 50px;
  color: #ffffff;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 40px;
  align-items: center;
  margin-top: 40px;
  box-shadow: var(--shadow-lg);
}

.experience-content h3 {
  font-size: 2.2rem;
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 16px;
}

.experience-content p {
  font-size: 1rem;
  line-height: 1.7;
  color: #d1dedb;
  margin-bottom: 28px;
}

.experience-highlights {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.highlight-box {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(8px);
  padding: 16px 20px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.highlight-box h5 {
  font-size: 1.05rem;
  font-weight: 700;
  color: #fde68a;
  margin-bottom: 4px;
}

.highlight-box p {
  font-size: 0.82rem;
  color: #e2edea;
  line-height: 1.4;
  margin-bottom: 0;
}

/* ==========================================================
   Comprehensive Responsive Grid System (PC, iPad, Mobile)
   ========================================================== */

/* Tablet & iPad Landscape / Small Desktop (<= 1100px) */
@media (max-width: 1100px) {
  .hero-section {
    padding: 80px 0 100px;
  }
  .hero-title {
    font-size: 3rem;
  }
  .search-form {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }
  .search-submit-btn {
    grid-column: span 2;
  }
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
  .rooms-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }
  .experience-banner {
    grid-template-columns: 1fr;
  }
  .experience-img {
    min-height: 320px;
  }
}

/* Tablet & iPad Portrait (<= 820px) */
@media (max-width: 820px) {
  .hero-section {
    padding: 60px 0 80px;
  }
  .hero-title {
    font-size: 2.4rem;
  }
  .hero-desc {
    font-size: 1rem;
    padding: 0 10px;
  }
  .search-box {
    margin-top: -36px;
    padding: 24px 20px;
  }
  .experience-content {
    padding: 36px 28px;
  }
}

/* Mobile & Small Tablets (<= 640px) */
@media (max-width: 640px) {
  .hero-section {
    padding: 44px 0 60px;
  }
  .hero-badge {
    font-size: 0.78rem;
    padding: 6px 14px;
    margin-bottom: 16px;
  }
  .hero-title {
    font-size: 1.85rem;
    line-height: 1.25;
    margin-bottom: 14px;
  }
  .hero-desc {
    font-size: 0.92rem;
    margin-bottom: 24px;
    line-height: 1.5;
  }
  .search-box {
    margin-top: -24px;
    padding: 20px 16px;
    border-radius: var(--radius-lg);
  }
  .search-form {
    grid-template-columns: 1fr;
    gap: 14px;
  }
  .search-submit-btn {
    grid-column: span 1;
    width: 100%;
    margin-top: 6px;
  }
  .section {
    padding: 48px 0;
  }
  .section-header {
    margin-bottom: 30px;
  }
  .section-title {
    font-size: 1.6rem;
  }
  .section-subtitle {
    font-size: 0.9rem;
  }
  .features-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .feature-card {
    padding: 24px 20px;
  }
  .rooms-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .room-card-img {
    height: 200px;
  }
  .room-card-body {
    padding: 20px;
  }
  .room-card-title {
    font-size: 1.25rem;
  }
  .experience-content {
    padding: 28px 18px;
  }
  .experience-content h3 {
    font-size: 1.6rem;
  }
  .experience-highlights {
    grid-template-columns: 1fr;
    gap: 12px;
  }
}

/* Extra Small Mobile (<= 380px) */
@media (max-width: 380px) {
  .hero-title {
    font-size: 1.65rem;
  }
  .search-box {
    padding: 16px 12px;
  }
}