/* Light theme for Tahnda Solar (no black background) */
:root{
  --text:#0f172a;       /* slate-900 */
  --muted:#475569;      /* slate-600 */
  --brand:#16a34a;      /* green-600 */
  --brand2:#0ea5e9;     /* sky-500 */
  --danger:#dc2626;     /* red-600 */
  --border:#e5e7eb;     /* gray-200 */
  --card:#ffffff;
  --bg:#f8fafc;         /* gray-50 */
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;font-family:system-ui,Segoe UI,Roboto,Ubuntu,Arial,sans-serif;color:var(--text);background:var(--bg)}
a{color:#0b72b9;text-decoration:none}
.container{max-width:1100px;margin:0 auto;padding:0 16px}
.row{display:flex;gap:12px;align-items:center;flex-wrap:wrap}
.row.two>*, .grid.two>*{flex:1 1 calc(50% - 12px)}
.row.three>*{flex:1 1 calc(33% - 12px)}
.row.between{justify-content:space-between}
.grid{display:grid;gap:16px}
.grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}

/* Header */
.site-header{position:sticky;top:0;background:#ffffffcc;backdrop-filter:blur(8px);z-index:50;border-bottom:1px solid var(--border)}
.site-header .logo{display:flex;gap:8px;align-items:center;font-weight:800;color:#111827}
.logo-mark{font-size:28px}
.logo-text{letter-spacing:.3px}
.nav a{margin:0 10px;padding:8px 12px;border-radius:8px;color:#0f172a}
.nav a:hover{background:#eef2ff}
.nav .cta{background:#10b9811a;border:1px solid #10b98155;color:#065f46}

/* Hero */
.hero{padding:72px 0;background-image: linear-gradient(rgba(0,0,0,.25), rgba(0,0,0,.35)), var(--hero-image);background-size: cover; background-position:center;border-bottom:1px solid var(--border)}
.hero h1{font-size:48px;margin:0 0 10px;color:#fff}
.hero p{color:#f1f5f9;max-width:720px}
.actions{display:flex;gap:12px;margin-top:16px}
.btn{background:var(--brand2);color:#fff;border:none;border-radius:10px;padding:10px 16px;display:inline-block;font-weight:600;box-shadow:0 6px 20px rgba(14,165,233,.25);cursor:pointer}
.btn.secondary{background:var(--brand)}
.btn:active{transform:translateY(1px)}
.link{background:none;border:none;color:#0b72b9;cursor:pointer}
.link.danger{color:var(--danger)}

/* Cards & tables */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px;margin:24px auto}
.card{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:16px;box-shadow:0 6px 18px rgba(2,6,23,.05)}
.table{width:100%;border-collapse:collapse;margin:10px 0;background:#fff;border:1px solid var(--border);border-radius:12px;overflow:hidden}
.table th,.table td{border-bottom:1px solid var(--border);padding:10px}
.table .num{text-align:right}
.table .total td{font-weight:700}

/* Forms */
label{display:block;font-size:14px;color:var(--muted)}
input, select, textarea{width:100%;padding:10px 12px;border-radius:10px;border:1px solid var(--border);background:#fff;color:#0f172a;margin-top:6px}
.form{display:grid;gap:12px}

/* Tabs */
.tabs{display:flex;gap:8px;margin-bottom:10px}
.tab{background:#f1f5f9;padding:8px 12px;border-radius:10px;border:1px solid var(--border);cursor:pointer;color:#0f172a}
.tab.active{background:#e0f2fe;border-color:#7dd3fc}

/* Footer */
.site-footer{margin-top:32px;padding:24px 0;border-top:1px solid var(--border);background:#fff}
.copy{margin-top:10px;color:var(--muted);font-size:13px}

/* Subtle site background image with a WHITE overlay (not dark) */
body::before{
  content:'';
  position:fixed;
  inset:0;
  z-index:-1;
  background-image: linear-gradient(to bottom, rgba(255,255,255,.92), rgba(255,255,255,.92)), var(--site-bg-image);
  background-size: cover;
  background-position: center;
  pointer-events:none;
}

/* Gallery */
.gallery{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:12px;margin:24px 0}
.gallery img{width:100%;height:150px;object-fit:cover;border-radius:12px;border:1px solid var(--border);background:#fff}

/* WhatsApp */
.floating-wa{position:fixed;right:18px;bottom:18px;background:#25D366;color:#000;width:54px;height:54px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:24px;box-shadow:0 8px 24px rgba(0,0,0,.15)}

@media (max-width:720px){
  .hero h1{font-size:34px}
  .grid.two{grid-template-columns:1fr}
  .row.two>*, .row.three>*{flex:1 1 100%}
}