/* ==========================================================================
   BHAKTI ELECTRICALS — STYLESHEET
   Palette: deep navy + electric amber, "circuit trace" signature motif
   ========================================================================== */

:root {
  --navy: #10243E;
  --navy-dark: #0A1826;
  --amber: #FFB100;
  --amber-soft: #FFF3D6;
  --teal: #0F8B8D;
  --bg: #F9F8F4;
  --card: #ffffff;
  --text: #1B1F23;
  --text-muted: #5B6470;
  --border: #E7E4DC;

  --font-display: 'Rajdhani', sans-serif;
  --font-body: 'Inter', sans-serif;

  --radius: 10px;
  --radius-lg: 18px;
  --shadow: 0 6px 20px rgba(16, 36, 62, 0.08);
  --shadow-lg: 0 16px 40px rgba(16, 36, 62, 0.16);
  --transition: 0.25s ease;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }

a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
  outline: 3px solid var(--amber);
  outline-offset: 2px;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--navy);
  line-height: 1.15;
}
h1 { font-size: clamp(2.1rem, 5vw, 3.2rem); text-transform: uppercase; }
h2 { font-size: clamp(1.6rem, 3.4vw, 2.3rem); text-transform: uppercase; }
h3 { font-size: 1.25rem; }
p { color: var(--text-muted); }

.container { width: 100%; max-width: 1140px; margin: 0 auto; padding: 0 20px; }
.section { padding: 72px 0; }
.section-alt { background: var(--card); }
.text-center { text-align: center; }

/* ---------- Circuit-trace signature motif ---------- */
.circuit-rule {
  display: flex;
  align-items: center;
  gap: 6px;
  margin: 10px 0 22px;
}
.circuit-rule::before {
  content: "";
  width: 42px; height: 2px;
  background: var(--amber);
}
.circuit-rule::after {
  content: "";
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--amber);
}
.circuit-rule.center { justify-content: center; }

.section-eyebrow {
  display: inline-block;
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-size: 0.82rem;
  color: var(--teal);
}
.section-header { max-width: 620px; margin-bottom: 34px; }
.section-header.center { margin-left: auto; margin-right: auto; text-align: center; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: 999px;
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  font-size: 0.9rem;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
}
.btn-primary { background: var(--amber); color: var(--navy-dark); box-shadow: var(--shadow); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.btn-outline { background: transparent; border: 2px solid var(--navy); color: var(--navy); }
.btn-outline:hover { background: var(--navy); color: #fff; }
.btn-outline-light { background: transparent; border: 2px solid rgba(255,255,255,0.55); color: #fff; }
.btn-outline-light:hover { background: #fff; color: var(--navy); }
.btn-block { width: 100%; justify-content: center; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 500;
  background: rgba(249,248,244,0.94);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.navbar {
  display: flex; align-items: center; justify-content: space-between;
  height: 78px;
}
.logo { display: flex; align-items: center; gap: 10px; }
.logo-mark {
  width: 44px; height: 44px; border-radius: 9px;
  background: var(--navy);
  color: var(--amber);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display); font-weight: 700; font-size: 1.15rem;
}
.logo-text { font-family: var(--font-display); font-weight: 700; font-size: 1.2rem; color: var(--navy); line-height: 1.1; }
.logo-text small { display: block; font-family: var(--font-body); font-weight: 500; font-size: 0.68rem; letter-spacing: 0.1em; color: var(--text-muted); text-transform: uppercase; }

.nav-menu { display: none; align-items: center; gap: 30px; }
.nav-menu a {
  font-family: var(--font-display); font-weight: 600; text-transform: uppercase; font-size: 0.92rem; letter-spacing: 0.03em;
  position: relative; padding: 6px 0; color: var(--navy);
}
.nav-menu a::after {
  content: ""; position: absolute; left: 0; bottom: 0; width: 0; height: 2px; background: var(--amber);
  transition: width var(--transition);
}
.nav-menu a:hover::after, .nav-menu a.active::after { width: 100%; }
.nav-menu a.active { color: var(--teal); }

.header-actions { display: flex; align-items: center; gap: 14px; }
.header-call { display: none; font-family: var(--font-display); font-weight: 700; color: var(--navy); }

.hamburger { display: flex; flex-direction: column; gap: 5px; width: 28px; padding: 6px; }
.hamburger span { display: block; height: 2.5px; background: var(--navy); border-radius: 2px; transition: transform var(--transition), opacity var(--transition); }
.hamburger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
.hamburger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.hamburger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }

.mobile-menu {
  display: none;
  position: fixed; inset: 78px 0 0 0; z-index: 400;
  background: var(--navy); padding: 30px 24px;
}
.mobile-menu.open { display: block; }
.mobile-menu a {
  display: block; padding: 16px 0; color: #fff;
  font-family: var(--font-display); font-weight: 600; font-size: 1.15rem; text-transform: uppercase;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.mobile-menu a.active { color: var(--amber); }
.mobile-menu .btn { margin-top: 20px; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  background: linear-gradient(140deg, var(--navy-dark) 0%, var(--navy) 65%, #163257 100%);
  color: #fff;
  overflow: hidden;
  padding: 80px 0 70px;
}
.hero::before {
  content: "";
  position: absolute; top: -60px; right: -60px;
  width: 320px; height: 320px; border-radius: 50%;
  background: radial-gradient(circle, rgba(255,177,0,0.18), transparent 70%);
}
.hero-grid { display: grid; gap: 34px; align-items: center; position: relative; z-index: 1; }
.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(255,177,0,0.14); border: 1px solid rgba(255,177,0,0.4);
  color: var(--amber);
  padding: 7px 16px; border-radius: 999px;
  font-family: var(--font-display); font-weight: 600; font-size: 0.78rem; letter-spacing: 0.1em; text-transform: uppercase;
  margin-bottom: 16px;
}
.hero h1 { color: #fff; margin-bottom: 14px; }
.hero h1 .accent { color: var(--amber); }
.hero p.lead { color: rgba(255,255,255,0.82); font-size: 1.06rem; max-width: 480px; margin-bottom: 26px; }
.hero-buttons { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-img-wrap { position: relative; }
.hero-img-wrap img { border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); }
.hero-badge {
  position: absolute; bottom: -18px; left: -18px;
  background: var(--amber); color: var(--navy-dark);
  padding: 14px 20px; border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  font-family: var(--font-display);
}
.hero-badge strong { display: block; font-size: 1.4rem; }
.hero-badge span { font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.05em; }

/* ---------- Cards / grids ---------- */
.grid { display: grid; gap: 24px; }
.grid-2 { grid-template-columns: 1fr; }
.grid-3 { grid-template-columns: 1fr; }
.grid-4 { grid-template-columns: repeat(2, 1fr); }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.card:hover { transform: translateY(-5px); box-shadow: var(--shadow); border-color: var(--amber); }
.card-icon {
  width: 52px; height: 52px; border-radius: 12px;
  background: var(--amber-soft); color: var(--navy);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem; margin-bottom: 16px;
}
.card h3 { margin-bottom: 8px; }
.card p { font-size: 0.94rem; }

/* Stats */
.stat-strip {
  background: var(--navy); color: #fff; border-radius: var(--radius-lg);
  padding: 36px 24px; display: grid; gap: 22px; text-align: center;
}
.stat-strip .stat strong { display: block; font-family: var(--font-display); font-size: 2rem; color: var(--amber); }
.stat-strip .stat span { font-size: 0.82rem; color: rgba(255,255,255,0.8); text-transform: uppercase; letter-spacing: 0.06em; }

/* Gallery */
.gallery-tabs { display: flex; gap: 10px; flex-wrap: wrap; justify-content: center; margin-bottom: 30px; }
.gallery-tab {
  padding: 9px 20px; border-radius: 999px; border: 1.5px solid var(--border);
  font-family: var(--font-display); font-weight: 600; font-size: 0.85rem; text-transform: uppercase;
  background: var(--card); transition: all var(--transition);
}
.gallery-tab:hover { border-color: var(--amber); }
.gallery-tab.active { background: var(--navy); border-color: var(--navy); color: #fff; }

.gallery-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.gallery-item {
  position: relative; border-radius: var(--radius); overflow: hidden; cursor: pointer;
  aspect-ratio: 4/3;
}
.gallery-item img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
.gallery-item:hover img { transform: scale(1.08); }
.gallery-item .cap {
  position: absolute; inset: auto 0 0 0;
  background: linear-gradient(0deg, rgba(16,36,62,0.85), transparent);
  color: #fff; font-size: 0.82rem; padding: 10px 12px;
  opacity: 0; transition: opacity var(--transition);
}
.gallery-item:hover .cap { opacity: 1; }
.gallery-item.hidden { display: none; }

.lightbox {
  position: fixed; inset: 0; z-index: 999;
  background: rgba(10,24,38,0.94);
  display: none; align-items: center; justify-content: center; padding: 20px;
}
.lightbox.open { display: flex; }
.lightbox img { max-width: 92vw; max-height: 80vh; border-radius: var(--radius); }
.lightbox-close, .lightbox-prev, .lightbox-next {
  position: absolute; color: #fff; width: 44px; height: 44px; border-radius: 50%;
  background: rgba(255,255,255,0.12); display: flex; align-items: center; justify-content: center; font-size: 1.3rem;
}
.lightbox-close { top: 18px; right: 18px; }
.lightbox-prev { left: 12px; top: 50%; transform: translateY(-50%); }
.lightbox-next { right: 12px; top: 50%; transform: translateY(-50%); }

/* Timeline (About) */
.timeline { border-left: 2px dashed var(--amber); padding-left: 26px; }
.timeline-item { position: relative; padding-bottom: 30px; }
.timeline-item::before {
  content: ""; position: absolute; left: -33px; top: 4px;
  width: 14px; height: 14px; border-radius: 50%; background: var(--navy); border: 3px solid var(--amber);
}
.timeline-year { font-family: var(--font-display); font-weight: 700; color: var(--teal); font-size: 0.85rem; }

/* Form */
.form-card { background: var(--card); border-radius: var(--radius-lg); padding: 30px 26px; box-shadow: var(--shadow); }
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 0.86rem; font-weight: 600; margin-bottom: 6px; color: var(--navy); }
.form-group input, .form-group select, .form-group textarea {
  width: 100%; padding: 12px 14px; border: 1.5px solid var(--border); border-radius: var(--radius);
  background: var(--bg); font-family: var(--font-body); transition: border-color var(--transition);
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { outline: none; border-color: var(--amber); background: #fff; }
.form-group textarea { min-height: 120px; resize: vertical; }
.form-error { display: none; color: #C0392B; font-size: 0.78rem; margin-top: 4px; }
.form-group.has-error input, .form-group.has-error textarea, .form-group.has-error select { border-color: #C0392B; }
.form-group.has-error .form-error { display: block; }
.form-success { display: none; background: var(--amber-soft); border: 1px solid var(--amber); border-radius: var(--radius); padding: 14px 16px; margin-bottom: 16px; font-weight: 600; color: var(--navy); }
.form-success.visible { display: block; }

/* Info items (contact page) */
.info-item { display: flex; gap: 14px; align-items: flex-start; margin-bottom: 20px; }
.info-item .card-icon { margin-bottom: 0; flex-shrink: 0; }
.info-item h4 { margin-bottom: 3px; font-family: var(--font-body); font-weight: 700; font-size: 0.98rem; }
.info-item p { font-size: 0.92rem; }

.map-wrap { border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow); margin-top: 20px; }
.map-wrap iframe { width: 100%; height: 240px; border: 0; display: block; }

/* CTA band */
.cta-band {
  background: linear-gradient(120deg, var(--navy) 0%, var(--navy-dark) 100%);
  color: #fff; border-radius: var(--radius-lg); padding: 46px 28px; text-align: center;
}
.cta-band h2 { color: #fff; }
.cta-band p { color: rgba(255,255,255,0.82); margin: 10px 0 22px; }
.cta-buttons { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* Footer */
.site-footer { background: var(--navy-dark); color: #b6bfc9; padding-top: 50px; }
.footer-grid { display: grid; gap: 30px; padding-bottom: 34px; border-bottom: 1px solid rgba(255,255,255,0.08); }
.footer-logo { display: flex; align-items: center; gap: 10px; color: #fff; font-family: var(--font-display); font-weight: 700; font-size: 1.15rem; margin-bottom: 12px; }
.footer-about p { font-size: 0.9rem; margin-bottom: 14px; }
.footer-col h4 { color: #fff; font-family: var(--font-display); text-transform: uppercase; font-size: 0.95rem; margin-bottom: 14px; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col a { font-size: 0.9rem; color: #9aa4ae; transition: color var(--transition); }
.footer-col a:hover { color: var(--amber); }
.footer-bottom { display: flex; flex-direction: column; gap: 10px; align-items: center; text-align: center; padding: 22px 0; font-size: 0.82rem; color: #74808c; }

/* Floating buttons */
.floating-buttons { position: fixed; bottom: 22px; right: 22px; z-index: 300; display: flex; flex-direction: column; gap: 12px; }
.float-btn {
  width: 54px; height: 54px; border-radius: 50%; display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-lg); color: #fff; font-size: 1.3rem; transition: transform var(--transition);
}
.float-btn:hover { transform: scale(1.08); }
.float-call { background: var(--navy); }
.float-whatsapp { background: #25D366; }

/* Page hero (inner pages) */
.page-hero {
  background: linear-gradient(140deg, var(--navy-dark) 0%, var(--navy) 100%);
  color: #fff; padding: 60px 0 46px; text-align: center;
}
.page-hero h1 { color: #fff; }
.breadcrumb { margin-top: 8px; font-size: 0.88rem; color: rgba(255,255,255,0.75); }
.breadcrumb a { color: #fff; }

/* Utility */
.check-list li { display: flex; gap: 10px; margin-bottom: 10px; font-size: 0.93rem; color: var(--text-muted); }
.check-list li::before { content: "✓"; color: var(--teal); font-weight: 700; }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); }
.skip-link { position: absolute; top: -50px; left: 10px; background: var(--amber); color: var(--navy-dark); padding: 10px 16px; border-radius: 6px; z-index: 1000; transition: top 0.2s; }
.skip-link:focus { top: 10px; }

/* ---------- Responsive ---------- */
@media (min-width: 640px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .gallery-grid { grid-template-columns: repeat(3, 1fr); }
  .stat-strip { grid-template-columns: repeat(4, 1fr); }
}
@media (min-width: 760px) {
  .hero-grid { grid-template-columns: 1.1fr 0.9fr; }
  .header-call { display: block; }
}
@media (min-width: 860px) {
  .nav-menu { display: flex; }
  .hamburger, .mobile-menu { display: none !important; }
  .grid-2 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
  .grid-4 { grid-template-columns: repeat(4, 1fr); }
  .gallery-grid { grid-template-columns: repeat(4, 1fr); }
}
@media (min-width: 900px) {
  .form-columns { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 30px; align-items: start; }
}
@media print {
  .site-header, .site-footer, .floating-buttons { display: none !important; }
}