/* =============================================================
   Keja Link — customer-facing design tokens + components.
   Intentionally minimal. No framework dep — sits on top of
   whatever base the page includes (plain or AdminLTE).
   ============================================================= */

:root {
  --k-bg:        #f7f8fb;
  --k-surface:   #ffffff;
  --k-ink:       #0f172a;
  --k-muted:     #64748b;
  --k-border:    #e5e7eb;

  --k-primary:       #0f766e;   /* teal 700 */
  --k-primary-600:   #115e59;
  --k-primary-50:    #ecfdf5;
  --k-accent:        #f59e0b;   /* amber 500 */
  --k-danger:        #dc2626;
  --k-success:       #16a34a;
  --k-info:          #0284c7;

  --k-radius-sm: 6px;
  --k-radius:    12px;
  --k-radius-lg: 18px;

  --k-shadow-sm: 0 1px 2px rgba(15,23,42,.06);
  --k-shadow:    0 6px 18px rgba(15,23,42,.08);
  --k-shadow-lg: 0 16px 40px rgba(15,23,42,.12);
}

html, body { background: var(--k-bg); color: var(--k-ink); }
body.k-shell {
  font-family: -apple-system, "SF Pro Text", "Segoe UI", Roboto, system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
  line-height: 1.5;
  padding-bottom: 4rem;
}
a { color: var(--k-primary); text-decoration: none; }
a:hover { color: var(--k-primary-600); text-decoration: underline; }

/* ---------- Top bar ---------- */
.k-topbar {
  background: var(--k-surface);
  border-bottom: 1px solid var(--k-border);
  box-shadow: var(--k-shadow-sm);
  position: sticky; top: 0; z-index: 100;
}
.k-topbar .container {
  display: flex; align-items: center; justify-content: space-between;
  padding: 0.9rem 1rem;
}
.k-brand {
  font-weight: 700; font-size: 1.25rem;
  color: var(--k-ink); letter-spacing: -0.01em;
  display: inline-flex; align-items: center; gap: .5rem;
}
.k-brand .k-brand-mark {
  width: 28px; height: 28px; border-radius: 8px;
  background: linear-gradient(135deg, var(--k-primary), var(--k-accent));
  display: inline-flex; align-items: center; justify-content: center;
  color: white; font-weight: 700;
}
.k-brand:hover { text-decoration: none; color: var(--k-ink); }
.k-nav { display: flex; gap: 1rem; align-items: center; }
.k-nav a { color: var(--k-muted); font-weight: 500; }
.k-nav a:hover { color: var(--k-ink); text-decoration: none; }
.k-nav .btn { margin-left: .25rem; }

/* ---------- Hero ---------- */
.k-hero {
  background:
    radial-gradient(circle at 15% 20%, rgba(15,118,110,.10) 0%, transparent 45%),
    radial-gradient(circle at 90% 10%, rgba(245,158,11,.10) 0%, transparent 40%),
    var(--k-surface);
  padding: 3rem 0 2.5rem;
  border-bottom: 1px solid var(--k-border);
}
.k-hero h1 {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 700; letter-spacing: -0.02em;
  margin-bottom: .5rem;
}
.k-hero .lead { color: var(--k-muted); font-size: 1.1rem; margin-bottom: 1.25rem; }
.k-hero-search {
  background: var(--k-surface);
  border: 1px solid var(--k-border);
  border-radius: var(--k-radius-lg);
  box-shadow: var(--k-shadow);
  padding: .75rem;
  display: grid;
  gap: .5rem;
  grid-template-columns: 1fr 1fr 1fr auto;
}
@media (max-width: 720px) {
  .k-hero-search { grid-template-columns: 1fr; }
}
.k-hero-search input, .k-hero-search select {
  border: none; padding: .7rem .9rem; border-radius: var(--k-radius);
  background: #f1f5f9; font-size: .95rem;
}
.k-hero-search input:focus, .k-hero-search select:focus {
  outline: 2px solid var(--k-primary); background: white;
}

/* ---------- Buttons ---------- */
.k-btn {
  display: inline-flex; align-items: center; gap: .5rem;
  padding: .65rem 1.1rem; border-radius: var(--k-radius);
  font-weight: 600; border: 1px solid transparent;
  transition: transform .08s ease, box-shadow .2s ease, background .2s ease;
  cursor: pointer;
}
.k-btn:hover { transform: translateY(-1px); text-decoration: none; }
.k-btn-primary   { background: var(--k-primary); color: white; box-shadow: var(--k-shadow-sm); }
.k-btn-primary:hover { background: var(--k-primary-600); color: white; box-shadow: var(--k-shadow); }
.k-btn-accent    { background: var(--k-accent); color: #1f1d12; }
.k-btn-ghost     { background: transparent; color: var(--k-primary); border-color: var(--k-border); }
.k-btn-ghost:hover { background: var(--k-primary-50); color: var(--k-primary); }
.k-btn-danger    { background: var(--k-danger); color: white; }
.k-btn-block     { width: 100%; justify-content: center; }

/* ---------- Card ---------- */
.k-card {
  background: var(--k-surface);
  border: 1px solid var(--k-border);
  border-radius: var(--k-radius);
  box-shadow: var(--k-shadow-sm);
  overflow: hidden;
  transition: transform .15s ease, box-shadow .2s ease;
}
.k-card:hover { transform: translateY(-2px); box-shadow: var(--k-shadow); }
.k-card-body { padding: 1rem 1.1rem; }
.k-card-header {
  padding: 1rem 1.1rem;
  border-bottom: 1px solid var(--k-border);
  font-weight: 600;
}

/* ---------- Listing card grid ---------- */
.k-grid {
  display: grid; gap: 1.25rem;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
}
.k-listing-card .k-listing-image {
  aspect-ratio: 16/10; background-size: cover; background-position: center;
  background-color: #e2e8f0;
}
.k-listing-card h3 {
  font-size: 1.05rem; font-weight: 600;
  margin: 0 0 .25rem 0; color: var(--k-ink);
}
.k-listing-card .k-meta { color: var(--k-muted); font-size: .85rem; }
.k-price { font-weight: 700; color: var(--k-ink); font-size: 1.1rem; }
.k-price small { font-weight: 400; color: var(--k-muted); font-size: .8rem; }
.k-chip {
  display: inline-flex; align-items: center; gap: .3rem;
  padding: .2rem .55rem; border-radius: 999px;
  background: #f1f5f9; color: var(--k-ink);
  font-size: .75rem; font-weight: 500;
}
.k-chip-success { background: #ecfdf5; color: #047857; }
.k-chip-warning { background: #fffbeb; color: #b45309; }
.k-chip-info    { background: #eff6ff; color: #1d4ed8; }
.k-chip-muted   { background: #f1f5f9; color: var(--k-muted); }

/* ---------- Split: filters + results ---------- */
.k-split {
  display: grid; gap: 1.25rem;
  grid-template-columns: 280px 1fr;
  align-items: start;
}
@media (max-width: 960px) { .k-split { grid-template-columns: 1fr; } }
.k-filter-card label { font-size: .85rem; font-weight: 600; color: var(--k-ink); }
.k-filter-card input, .k-filter-card select {
  width: 100%; border: 1px solid var(--k-border);
  background: var(--k-surface); padding: .5rem .65rem;
  border-radius: var(--k-radius-sm); font-size: .9rem;
}
.k-filter-card .form-check { padding: .15rem 0; }

/* ---------- Detail page ---------- */
.k-gallery {
  display: grid; gap: .4rem;
  grid-template-columns: 1fr;
}
.k-gallery .k-hero-image {
  aspect-ratio: 4/3; background-size: cover; background-position: center;
  border-radius: var(--k-radius); background-color: #e2e8f0;
}
.k-gallery .k-thumbs {
  display: flex; gap: .4rem; overflow-x: auto;
}
.k-gallery .k-thumbs .k-thumb {
  width: 80px; height: 60px; border-radius: 8px; background-size: cover; background-position: center;
  cursor: pointer; flex-shrink: 0; opacity: .75;
}
.k-gallery .k-thumbs .k-thumb.active { outline: 2px solid var(--k-primary); opacity: 1; }

.k-specs {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: .75rem;
  margin: 1rem 0;
}
.k-spec {
  background: #f8fafc;
  border: 1px solid var(--k-border);
  padding: .65rem .75rem;
  border-radius: var(--k-radius-sm);
}
.k-spec .k-spec-label { font-size: .75rem; color: var(--k-muted); text-transform: uppercase; letter-spacing: .04em; }
.k-spec .k-spec-value { font-weight: 600; color: var(--k-ink); }

/* ---------- Forms ---------- */
.k-form label { display: block; font-weight: 500; margin: .65rem 0 .25rem; font-size: .9rem; }
.k-form input, .k-form select, .k-form textarea {
  width: 100%; padding: .6rem .75rem;
  border: 1px solid var(--k-border); border-radius: var(--k-radius-sm);
  background: var(--k-surface); font-size: .95rem;
}
.k-form input:focus, .k-form select:focus, .k-form textarea:focus {
  outline: 2px solid var(--k-primary); border-color: transparent;
}

/* ---------- Empty state ---------- */
.k-empty {
  text-align: center; padding: 3rem 1rem;
  color: var(--k-muted);
}
.k-empty .k-empty-icon { font-size: 2.5rem; opacity: .4; margin-bottom: .75rem; }

/* ---------- Alerts ---------- */
.k-alert {
  border-radius: var(--k-radius-sm);
  padding: .8rem 1rem;
  border: 1px solid;
  margin-bottom: 1rem;
}
.k-alert-success { background: #ecfdf5; border-color: #a7f3d0; color: #065f46; }
.k-alert-danger  { background: #fef2f2; border-color: #fecaca; color: #7f1d1d; }
.k-alert-info    { background: #eff6ff; border-color: #bfdbfe; color: #1e40af; }

/* ---------- Table ---------- */
.k-table { width: 100%; border-collapse: separate; border-spacing: 0; }
.k-table th, .k-table td { text-align: left; padding: .65rem .85rem; border-bottom: 1px solid var(--k-border); }
.k-table thead th { font-size: .8rem; text-transform: uppercase; letter-spacing: .04em; color: var(--k-muted); }
.k-table tbody tr:hover { background: #f8fafc; }

/* Container */
.k-container { max-width: 1200px; margin: 0 auto; padding: 0 1rem; }
.k-section { padding: 2rem 0; }