/* Rudra Electricals — Dark Cinematic Theme (Sample 1 style) */

/* Base */
html { scroll-behavior: smooth; }
body { background-color: #0F1117; }

/* Navbar active link */
.nav-link.active { color: #EAB308; border-bottom: 2px solid #EAB308; }

/* Hero gradient overlay — dark cinematic */
.hero-overlay {
  background: linear-gradient(135deg, rgba(0,0,0,0.80) 0%, rgba(0,0,0,0.50) 60%, rgba(0,0,0,0.20) 100%);
}

/* Subsidy badge pulse — yellow glow */
@keyframes pulse-badge {
  0%, 100% { box-shadow: 0 0 0 0 rgba(234,179,8,0.6); }
  50%       { box-shadow: 0 0 0 8px rgba(234,179,8,0); }
}
.subsidy-badge { animation: pulse-badge 2s infinite; }

/* Brand logo grayscale → color on hover */
.brand-logo { filter: grayscale(100%); opacity: 0.5; transition: all 0.3s ease; }
.brand-logo:hover { filter: grayscale(0%); opacity: 1; }

/* Product card hover lift */
.product-card { transition: transform 0.25s ease, box-shadow 0.25s ease; }
.product-card:hover { transform: translateY(-4px); box-shadow: 0 12px 40px rgba(0,0,0,0.4); }

/* FAQ accordion chevron */
.faq-btn[aria-expanded="true"] .faq-chevron { transform: rotate(180deg); }
.faq-chevron { transition: transform 0.25s ease; }

/* Stats strip */
.stats-strip {
  background: linear-gradient(90deg, #0F1117 0%, #1C1F2E 50%, #0F1117 100%);
  border-top: 1px solid rgba(255,255,255,0.06);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

/* PM Surya Ghar section — dark with yellow accent */
.surya-ghar-bg {
  background: linear-gradient(135deg, #1C1F2E 0%, #0F1117 100%);
  border-left: 4px solid #EAB308;
}

/* WhatsApp button */
.whatsapp-btn { background-color: #25D366; }
.whatsapp-btn:hover { background-color: #1ebe57; }

/* Category filter active tab */
.filter-tab.active {
  background-color: #EAB308;
  color: #0F1117;
  border-color: #EAB308;
  font-weight: 700;
}

/* Form field error */
.field-error { border-color: #ef4444 !important; }
.error-msg { color: #ef4444; font-size: 0.78rem; margin-top: 2px; }

/* Success banner */
#form-success { display: none; }
#form-success.show { display: flex; }

/* Scroll reveal */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity 0.5s ease, transform 0.5s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* Mobile menu */
#mobile-menu { display: none; }
#mobile-menu.open { display: block; }

/* Step connector */
.step-connector {
  flex: 1;
  height: 2px;
  background: linear-gradient(90deg, #EAB308, #F59E0B);
}

/* Stars */
.star-filled { color: #EAB308; }

/* Footer links */
footer a:hover { color: #EAB308; }

/* ── Glassmorphism card (dark) ─────────────────────────────────────── */
.glass-card {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.10);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.glass-card:hover {
  background: rgba(255,255,255,0.08);
  border-color: rgba(234,179,8,0.30);
}

/* ── Hero floating info card ──────────────────────────────────────── */
.hero-float-card {
  background: rgba(28,31,46,0.90);
  border: 1px solid rgba(255,255,255,0.10);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  transition: border-color 0.25s ease;
}
.hero-float-card:hover { border-color: rgba(234,179,8,0.40); }

/* ── Dark form input ──────────────────────────────────────────────── */
.dark-input {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.12);
  color: #fff;
  transition: border-color 0.2s ease;
}
.dark-input::placeholder { color: rgba(255,255,255,0.35); }
.dark-input:focus { outline: none; border-color: #EAB308; }
.dark-input option { background-color: #1C1F2E; color: #ffffff; }

/* ── Yellow CTA button ────────────────────────────────────────────── */
.btn-yellow {
  background-color: #EAB308;
  color: #0F1117;
  font-weight: 700;
  transition: background-color 0.2s ease, transform 0.1s ease;
}
.btn-yellow:hover { background-color: #ca9e04; }
.btn-yellow:active { transform: scale(0.98); }

/* ── Outline button (dark theme) ──────────────────────────────────── */
.btn-outline-light {
  border: 2px solid rgba(255,255,255,0.5);
  color: #fff;
  transition: border-color 0.2s, color 0.2s;
}
.btn-outline-light:hover { border-color: #EAB308; color: #EAB308; }

/* ── Back-to-top button ───────────────────────────────────────────── */
#back-to-top {
  position: fixed; bottom: 2rem; right: 2rem;
  width: 44px; height: 44px;
  background: #EAB308; color: #0F1117;
  border-radius: 50%; border: none;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.25rem; font-weight: 700; cursor: pointer;
  opacity: 0; pointer-events: none;
  transition: opacity 0.3s ease, transform 0.2s ease;
  z-index: 99;
}
#back-to-top.visible { opacity: 1; pointer-events: auto; }
#back-to-top:hover { transform: translateY(-3px); }

/* ── Product category badge colors (dark bg aware) ───────────────── */
.badge-panel    { background: rgba(59,130,246,0.15); color: #93c5fd; }
.badge-battery  { background: rgba(34,197,94,0.15);  color: #86efac; }
.badge-inverter { background: rgba(234,179,8,0.15);  color: #fde68a; }
.badge-install  { background: rgba(249,115,22,0.15); color: #fdba74; }