/* KNF Booking — Frontend Styles */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@600;700&family=DM+Sans:wght@300;400;500;600&display=swap');

:root {
  --knf-dark:    #0f172a;
  --knf-mid:     #1e293b;
  --knf-slate:   #334155;
  --knf-muted:   #64748b;
  --knf-border:  #e2e8f0;
  --knf-bg:      #f8fafc;
  --knf-white:   #ffffff;
  --knf-gold:    #d4a843;
  --knf-gold-lt: #fef3c7;
  --knf-green:   #16a34a;
  --knf-red:     #dc2626;
  --knf-radius:  14px;
  --knf-shadow:  0 4px 24px rgba(15,23,42,0.10);
  --knf-shadow-lg: 0 12px 48px rgba(15,23,42,0.18);
}

.knf-bk-wrap * { box-sizing: border-box; }
.knf-bk-wrap { font-family: 'DM Sans', sans-serif; max-width: 1080px; margin: 0 auto; padding: 0 16px; color: var(--knf-dark); }

/* Alerts */
.knf-bk-alert { padding: 14px 20px; border-radius: var(--knf-radius); margin-bottom: 24px; font-size: 15px; font-weight: 500; }
.knf-bk-success { background: #dcfce7; color: #166534; border-left: 4px solid #16a34a; }
.knf-bk-warn    { background: #fef3c7; color: #92400e; border-left: 4px solid #f59e0b; }

/* Card base */
.knf-bk-card {
  background: var(--knf-white);
  border-radius: var(--knf-radius);
  box-shadow: var(--knf-shadow);
  padding: 36px 40px;
  margin-bottom: 28px;
}

/* Step header */
.knf-bk-step-header { display: flex; align-items: center; gap: 18px; margin-bottom: 30px; }
.knf-bk-step-num {
  width: 44px; height: 44px; border-radius: 50%;
  background: var(--knf-dark); color: white;
  display: flex; align-items: center; justify-content: center;
  font-family: 'Playfair Display', serif; font-size: 20px; font-weight: 700;
  flex-shrink: 0;
}
.knf-bk-title { font-family: 'Playfair Display', serif; font-size: 26px; font-weight: 700; margin: 0 0 4px; color: var(--knf-dark); }
.knf-bk-sub   { font-size: 14px; color: var(--knf-muted); margin: 0; }

/* Search grid */
.knf-bk-search-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-bottom: 24px; }
@media (max-width: 600px) { .knf-bk-search-grid { grid-template-columns: 1fr; } }

.knf-bk-label { display: block; font-size: 13px; font-weight: 600; color: var(--knf-slate); margin-bottom: 7px; text-transform: uppercase; letter-spacing: 0.5px; }
.knf-bk-input {
  width: 100%; padding: 12px 16px; border: 2px solid var(--knf-border);
  border-radius: 9px; font-size: 15px; font-family: 'DM Sans', sans-serif;
  background: #f8fafc; transition: border-color .2s, box-shadow .2s; outline: none;
}
.knf-bk-input:focus { border-color: var(--knf-dark); box-shadow: 0 0 0 3px rgba(15,23,42,.08); background: #fff; }

/* Counter */
.knf-bk-counter { display: flex; align-items: center; gap: 0; }
.knf-bk-counter .knf-bk-input { text-align: center; border-radius: 0; width: 60px; flex-shrink: 0; }
.knf-counter-btn {
  width: 42px; height: 46px; border: 2px solid var(--knf-border); background: #f1f5f9;
  font-size: 20px; cursor: pointer; color: var(--knf-dark); transition: background .15s;
  line-height: 1;
}
.knf-counter-btn:first-child { border-radius: 9px 0 0 9px; border-right: none; }
.knf-counter-btn:last-child  { border-radius: 0 9px 9px 0; border-left: none; }
.knf-counter-btn:hover { background: var(--knf-dark); color: white; }

/* Buttons */
.knf-bk-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 14px 28px; border-radius: 10px; font-size: 15px; font-weight: 600;
  font-family: 'DM Sans', sans-serif; cursor: pointer; border: none;
  transition: all .2s; text-decoration: none;
}
.knf-bk-btn-primary {
  background: var(--knf-dark); color: white; width: 100%;
  letter-spacing: 0.3px;
}
.knf-bk-btn-primary:hover { background: var(--knf-slate); transform: translateY(-1px); box-shadow: var(--knf-shadow); }
.knf-bk-btn-outline {
  background: transparent; color: var(--knf-dark);
  border: 2px solid var(--knf-dark);
}
.knf-bk-btn-outline:hover { background: var(--knf-dark); color: white; }
.knf-bk-btn-pay { font-size: 17px; padding: 16px 32px; background: var(--knf-green); }
.knf-bk-btn-pay:hover { background: #15803d; }

/* Error / hints */
.knf-bk-error { background: #fee2e2; color: var(--knf-red); padding: 12px 16px; border-radius: 8px; font-size: 14px; margin-bottom: 16px; border-left: 3px solid var(--knf-red); }
.knf-bk-hint  { font-size: 12.5px; color: #b45309; background: var(--knf-gold-lt); padding: 8px 12px; border-radius: 7px; margin-top: 6px; }

/* Results header */
.knf-bk-results-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 24px; flex-wrap: wrap; gap: 12px; }

/* Houses Grid */
.knf-bk-houses-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 24px; }
@media (max-width: 680px) { .knf-bk-houses-grid { grid-template-columns: 1fr; } }

/* House Card */
.knf-house-card {
  background: var(--knf-white); border-radius: var(--knf-radius);
  box-shadow: var(--knf-shadow); overflow: hidden;
  transition: transform .25s, box-shadow .25s; display: flex; flex-direction: column;
}
.knf-house-card:hover { transform: translateY(-4px); box-shadow: var(--knf-shadow-lg); }

/* Gallery */
.knf-house-gallery { position: relative; height: 210px; overflow: hidden; background: #f1f5f9; }
.knf-gallery-slides { display: flex; height: 100%; transition: transform .35s cubic-bezier(.4,0,.2,1); }
.knf-gallery-slide  { flex-shrink: 0; width: 100%; height: 100%; object-fit: cover; }
.knf-gallery-no-img { width: 100%; height: 100%; display: flex; align-items: center; justify-content: center; font-size: 48px; color: #cbd5e1; }
.knf-gallery-btn {
  position: absolute; top: 50%; transform: translateY(-50%);
  width: 32px; height: 32px; border-radius: 50%; background: rgba(255,255,255,.9);
  border: none; cursor: pointer; display: flex; align-items: center; justify-content: center;
  font-size: 16px; color: var(--knf-dark); box-shadow: 0 2px 8px rgba(0,0,0,.15);
  transition: background .15s; z-index: 5;
}
.knf-gallery-btn:hover { background: white; }
.knf-gallery-prev { left: 10px; }
.knf-gallery-next { right: 10px; }
.knf-gallery-dots { position: absolute; bottom: 8px; left: 50%; transform: translateX(-50%); display: flex; gap: 5px; z-index: 5; }
.knf-gallery-dot  { width: 7px; height: 7px; border-radius: 50%; background: rgba(255,255,255,.6); cursor: pointer; transition: background .15s; }
.knf-gallery-dot.active { background: white; }

/* House card body */
.knf-house-body   { padding: 20px; flex: 1; display: flex; flex-direction: column; }
.knf-house-name   { font-family: 'Playfair Display', serif; font-size: 19px; font-weight: 700; margin: 0 0 6px; color: var(--knf-dark); }
.knf-house-price  { font-size: 20px; font-weight: 700; color: var(--knf-dark); margin: 0 0 10px; }
.knf-house-price span { font-size: 13px; font-weight: 400; color: var(--knf-muted); }
.knf-house-desc   { font-size: 13.5px; color: var(--knf-muted); line-height: 1.6; margin: 0 0 14px; flex: 1; }

.knf-house-footer { display: flex; gap: 8px; margin-top: auto; padding-top: 14px; border-top: 1px solid var(--knf-border); }
.knf-btn-details  { flex: 1; padding: 10px; border-radius: 8px; border: 2px solid var(--knf-dark); background: transparent; color: var(--knf-dark); font-weight: 600; font-size: 13px; cursor: pointer; transition: all .15s; font-family: inherit; }
.knf-btn-details:hover { background: var(--knf-dark); color: white; }
.knf-btn-book-now { flex: 2; padding: 10px; border-radius: 8px; background: var(--knf-dark); color: white; border: none; font-weight: 700; font-size: 14px; cursor: pointer; transition: background .15s; font-family: inherit; letter-spacing: .2px; }
.knf-btn-book-now:hover { background: var(--knf-slate); }

/* Booking form layout */
.knf-bk-form-layout { display: grid; grid-template-columns: 1fr 1.3fr; gap: 28px; }
@media (max-width: 720px) { .knf-bk-form-layout { grid-template-columns: 1fr; } }

.knf-bk-summary-box { background: var(--knf-bg); border-radius: 12px; padding: 24px; border: 1px solid var(--knf-border); height: fit-content; }
.knf-bk-summary-box h3 { font-family: 'Playfair Display', serif; font-size: 18px; margin: 0 0 16px; color: var(--knf-dark); }
.knf-bk-summary-row { display: flex; justify-content: space-between; padding: 8px 0; border-bottom: 1px solid var(--knf-border); font-size: 14px; }
.knf-bk-summary-row:last-child { border-bottom: none; font-size: 16px; font-weight: 700; padding-top: 14px; }
.knf-bk-summary-label { color: var(--knf-muted); }
.knf-bk-summary-value { font-weight: 600; color: var(--knf-dark); }
.knf-bk-summary-total { color: var(--knf-green) !important; }

.knf-bk-field { margin-bottom: 18px; }

/* Modal */
.knf-modal-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,.7); z-index: 99999;
  display: flex; align-items: center; justify-content: center; padding: 20px;
  animation: knf-fade-in .2s ease;
}
@keyframes knf-fade-in { from { opacity:0; } to { opacity:1; } }
.knf-modal-box {
  background: white; border-radius: 18px; max-width: 680px; width: 100%;
  max-height: 90vh; overflow-y: auto; position: relative;
  box-shadow: 0 20px 80px rgba(0,0,0,.4);
  animation: knf-slide-up .25s ease;
}
@keyframes knf-slide-up { from { transform:translateY(24px); opacity:0; } to { transform:translateY(0); opacity:1; } }
.knf-modal-close {
  position: absolute; top: 14px; right: 16px; z-index: 10;
  width: 34px; height: 34px; border-radius: 50%; border: none;
  background: rgba(0,0,0,.15); color: white; font-size: 16px;
  cursor: pointer; display: flex; align-items: center; justify-content: center;
}
.knf-modal-gallery { height: 280px; overflow: hidden; border-radius: 18px 18px 0 0; background: #f1f5f9; }
.knf-modal-gallery .knf-gallery-slides { height: 100%; }
.knf-modal-gallery img { height: 100%; }
.knf-modal-body { padding: 28px 32px; }
.knf-modal-body h2 { font-family: 'Playfair Display', serif; font-size: 24px; margin: 0 0 8px; }
.knf-modal-price { font-size: 20px; font-weight: 700; color: var(--knf-dark); margin-bottom: 20px; }
.knf-modal-section h4 { font-size: 13px; text-transform: uppercase; letter-spacing: 1px; color: var(--knf-muted); font-weight: 600; margin: 18px 0 8px; }
.knf-modal-section p  { font-size: 14px; line-height: 1.7; color: var(--knf-slate); margin: 0; white-space: pre-line; }
.knf-amenities-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.knf-amenity-tag { background: var(--knf-bg); border: 1px solid var(--knf-border); padding: 5px 12px; border-radius: 20px; font-size: 13px; color: var(--knf-slate); }
.knf-modal-book-btn { width: 100%; margin-top: 20px; padding: 15px; border-radius: 10px; background: var(--knf-dark); color: white; border: none; font-size: 16px; font-weight: 700; cursor: pointer; font-family: inherit; transition: background .15s; }
.knf-modal-book-btn:hover { background: var(--knf-slate); }

/* Booked overlay on cards */
.knf-house-booked-badge {
  position: absolute; top: 12px; right: 12px;
  background: rgba(220,38,38,.9); color: white;
  font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 1px;
  padding: 4px 10px; border-radius: 20px;
}

/* Loading spinner */
.knf-spinner { display: inline-block; width: 20px; height: 20px; border: 3px solid rgba(255,255,255,.3); border-top-color: white; border-radius: 50%; animation: knf-spin .7s linear infinite; }
@keyframes knf-spin { to { transform: rotate(360deg); } }

/* Empty state */
.knf-bk-empty { text-align: center; padding: 60px 20px; color: var(--knf-muted); }
.knf-bk-empty-icon { font-size: 48px; margin-bottom: 12px; }
.knf-bk-empty p { font-size: 16px; }

/* ============================================================
 *  v1.1 Additions
 * ========================================================== */

/* Theme: Glass Dark */
.knf-theme-glass-dark {
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
  min-height: 100vh; padding: 32px 0; border-radius: 16px;
}
.knf-theme-glass-dark .knf-bk-card {
  background: rgba(255,255,255,.08);
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255,255,255,.12);
  box-shadow: 0 8px 32px rgba(0,0,0,.3);
}
.knf-theme-glass-dark .knf-bk-title,
.knf-theme-glass-dark .knf-bk-sub,
.knf-theme-glass-dark .knf-bk-label { color: rgba(255,255,255,.9); }
.knf-theme-glass-dark .knf-bk-input {
  background: rgba(255,255,255,.1); border-color: rgba(255,255,255,.2); color: white;
}
.knf-theme-glass-dark .knf-bk-input:focus { border-color: rgba(255,255,255,.5); background: rgba(255,255,255,.15); }
.knf-theme-glass-dark .knf-bk-step-num { background: rgba(255,255,255,.2); border: 2px solid rgba(255,255,255,.4); }
.knf-theme-glass-dark .knf-bk-summary-box { background: rgba(255,255,255,.06); border-color: rgba(255,255,255,.12); }
.knf-theme-glass-dark .knf-bk-summary-row { border-color: rgba(255,255,255,.1); }
.knf-theme-glass-dark .knf-bk-summary-label,
.knf-theme-glass-dark .knf-bk-summary-value { color: rgba(255,255,255,.85); }
.knf-theme-glass-dark .knf-counter-btn { background: rgba(255,255,255,.1); border-color: rgba(255,255,255,.2); color: white; }
.knf-theme-glass-dark .knf-counter-btn:hover { background: rgba(255,255,255,.25); }

/* Theme: Glass Light */
.knf-theme-glass-light {
  background: linear-gradient(135deg, #e0e7ff 0%, #fdf4ff 50%, #fce7f3 100%);
  min-height: 100vh; padding: 32px 0; border-radius: 16px;
}
.knf-theme-glass-light .knf-bk-card {
  background: rgba(255,255,255,.65);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255,255,255,.8);
  box-shadow: 0 8px 32px rgba(99,102,241,.12);
}

/* Lightbox (#10) */
.knf-lightbox-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,.92); z-index: 999999;
  display: flex; align-items: center; justify-content: center;
  animation: knf-fade-in .15s ease;
}
.knf-lightbox-overlay img {
  max-width: 92vw; max-height: 88vh; object-fit: contain;
  border-radius: 6px; box-shadow: 0 4px 40px rgba(0,0,0,.6);
}
.knf-lightbox-close {
  position: fixed; top: 16px; right: 20px;
  background: rgba(255,255,255,.15); border: none; color: white;
  font-size: 24px; width: 44px; height: 44px; border-radius: 50%;
  cursor: pointer; display: flex; align-items: center; justify-content: center;
  transition: background .15s; z-index: 9;
}
.knf-lightbox-close:hover { background: rgba(255,255,255,.3); }
.knf-lightbox-nav {
  position: fixed; top: 50%; transform: translateY(-50%);
  background: rgba(255,255,255,.15); border: none; color: white;
  font-size: 36px; width: 52px; height: 52px; border-radius: 50%;
  cursor: pointer; display: flex; align-items: center; justify-content: center;
  transition: background .15s;
}
.knf-lightbox-nav:hover { background: rgba(255,255,255,.3); }
.knf-lightbox-prev { left: 16px; }
.knf-lightbox-next { right: 16px; }

/* "Show full picture" button on modal gallery images */
.knf-gallery-fullscreen-btn {
  position: absolute; bottom: 10px; right: 10px; z-index: 6;
  background: rgba(0,0,0,.6); color: white; border: none;
  font-size: 12px; padding: 5px 10px; border-radius: 6px;
  cursor: pointer; backdrop-filter: blur(4px);
  transition: background .15s;
}
.knf-gallery-fullscreen-btn:hover { background: rgba(0,0,0,.85); }