/* ====================================================
   Shree Balaji Enterprises — Design System v4
   Shared stylesheet for all redesigned pages
   ==================================================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --accent: #e8600a; --accent-light: #f97316; --accent-glow: rgba(232,96,10,0.2);
  --navy: #1a2e4a; --navy-dark: #0f1e32;
  --bg: #f5f6f9; --bg-card: #ffffff; --bg-alt: #eef0f5; --border: #e0e4ed;
  --nav-bg: rgba(10,22,40,0.96); --nav-link: rgba(255,255,255,0.72); --nav-link-hover: #ffffff;
  --text: #0f1e32; --text-muted: #5a6882; --text-on-dark: #f0f4ff; --text-muted-on-dark: rgba(255,255,255,0.52);
  --shadow-sm: 0 2px 8px rgba(15,30,50,0.06); --shadow: 0 6px 24px rgba(15,30,50,0.09);
  --shadow-lg: 0 16px 56px rgba(15,30,50,0.13); --shadow-accent: 0 8px 32px rgba(232,96,10,0.28);
  --radius: 14px; --radius-lg: 22px; --font: 'Plus Jakarta Sans', system-ui, sans-serif;
  --transition: all 0.36s cubic-bezier(0.4,0,0.2,1);
}
html { scroll-behavior: smooth; }
body { font-family: var(--font); background: var(--bg); color: var(--text); line-height: 1.65; -webkit-font-smoothing: antialiased; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; display: block; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 32px; }
.section { padding: 100px 0; }
.section-alt { background: var(--bg-alt); }

/* SECTION HEADER */
.sec-head { text-align: center; margin-bottom: 68px; }
.sec-head .eyebrow { display: inline-block; font-size: 0.72rem; font-weight: 700; letter-spacing: 2.5px; text-transform: uppercase; color: var(--accent); margin-bottom: 14px; }
.sec-head h2 { font-size: clamp(1.9rem, 3.5vw, 2.6rem); font-weight: 800; color: var(--text); letter-spacing: -0.03em; line-height: 1.15; margin-bottom: 14px; }
.sec-head p { font-size: 1.05rem; color: var(--text-muted); max-width: 540px; margin: 0 auto; line-height: 1.75; }
.divider { width: 40px; height: 3px; background: var(--accent); border-radius: 2px; margin: 20px auto 0; }

/* BUTTONS */
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 13px 28px; border-radius: var(--radius); font-size: 0.9rem; font-weight: 700; cursor: pointer; transition: var(--transition); border: 2px solid transparent; font-family: var(--font); white-space: nowrap; }
.btn-primary { background: var(--accent); color: #fff; box-shadow: var(--shadow-accent); }
.btn-primary:hover { transform: translateY(-2px); background: var(--accent-light); box-shadow: 0 10px 36px rgba(232,96,10,0.38); }
.btn-ghost { background: transparent; color: #fff; border-color: rgba(255,255,255,0.3); }
.btn-ghost:hover { background: rgba(255,255,255,0.1); border-color: rgba(255,255,255,0.5); transform: translateY(-2px); }
.btn-outline { background: transparent; color: var(--text); border-color: var(--border); }
.btn-outline:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }
.btn-dark { background: var(--navy); color: #fff; }
.btn-dark:hover { background: #0f1e32; transform: translateY(-2px); box-shadow: var(--shadow-lg); }

/* NAV */
.nav { position: sticky; top: 0; z-index: 100; background: var(--nav-bg); backdrop-filter: blur(20px) saturate(180%); border-bottom: 1px solid rgba(255,255,255,0.05); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 76px; }
.nav-logo img { height: 58px; width: auto; background: #fff; border-radius: 10px; padding: 4px 10px; transition: transform 0.25s; }
.nav-logo:hover img { transform: scale(1.04); }
.nav-links { display: flex; align-items: center; gap: 4px; }
.nav-links a { color: var(--nav-link); padding: 8px 15px; border-radius: 10px; font-size: 0.88rem; font-weight: 600; transition: var(--transition); }
.nav-links a:hover, .nav-links a.active { color: var(--nav-link-hover); background: rgba(255,255,255,0.08); }
.nav-cta { background: var(--accent) !important; color: #fff !important; border-radius: 10px; padding: 9px 20px !important; box-shadow: 0 2px 12px rgba(232,96,10,0.28); }
.nav-cta:hover { transform: translateY(-1px); box-shadow: 0 4px 20px rgba(232,96,10,0.4) !important; background: var(--accent-light) !important; }
.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 6px; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: #fff; margin: 5px 0; border-radius: 2px; transition: 0.3s; }

/* PAGE HERO */
.page-hero { background: linear-gradient(150deg, var(--navy-dark) 0%, var(--navy) 100%); padding: 80px 0; text-align: center; position: relative; overflow: hidden; }
.page-hero::before { content: ''; position: absolute; inset: 0; background-image: linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px); background-size: 48px 48px; mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 40%, transparent 100%); }
.page-hero .container { position: relative; }
.page-hero h1 { font-size: clamp(2rem, 4vw, 3rem); font-weight: 800; color: #fff; letter-spacing: -0.04em; margin-bottom: 14px; }
.page-hero p { color: rgba(255,255,255,0.55); font-size: 1.05rem; max-width: 520px; margin: 0 auto 20px; line-height: 1.75; }
.breadcrumb { display: flex; align-items: center; justify-content: center; gap: 8px; font-size: 0.82rem; color: rgba(255,255,255,0.35); }
.breadcrumb a { color: var(--accent); }
.breadcrumb span { color: rgba(255,255,255,0.25); }

/* STRIP */
.strip { background: linear-gradient(90deg, var(--accent) 0%, #c44d00 100%); padding: 18px 0; }
.strip-inner { display: flex; gap: 56px; justify-content: center; flex-wrap: wrap; align-items: center; }
.strip-feat { display: flex; align-items: center; gap: 10px; color: #fff; font-weight: 600; font-size: 0.86rem; }
.strip-feat svg { flex-shrink: 0; opacity: 0.85; }

/* PRODUCT CARDS */
.prod-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.prod-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; display: flex; flex-direction: column; transition: var(--transition); position: relative; }
.prod-card::after { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px; background: var(--accent); transform: scaleX(0); transform-origin: left; transition: transform 0.36s cubic-bezier(0.4,0,0.2,1); }
.prod-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: transparent; }
.prod-card:hover::after { transform: scaleX(1); }
.prod-img { background: linear-gradient(145deg, #0d1a2e, #1a3050); padding: 28px; display: flex; align-items: center; justify-content: center; min-height: 180px; position: relative; overflow: hidden; }
.prod-img::before { content: ''; position: absolute; inset: 0; background: radial-gradient(circle at 70% 30%, rgba(232,96,10,0.07) 0%, transparent 65%); }
.prod-img img { max-height: 130px; width: auto; object-fit: contain; position: relative; transition: transform 0.45s cubic-bezier(0.4,0,0.2,1); filter: drop-shadow(0 4px 16px rgba(0,0,0,0.35)); }
.prod-card:hover .prod-img img { transform: scale(1.08) translateY(-4px); }
.prod-body { padding: 22px 24px 26px; flex: 1; display: flex; flex-direction: column; }
.prod-tag { display: inline-block; background: rgba(232,96,10,0.09); color: var(--accent); font-size: 0.7rem; font-weight: 700; padding: 4px 12px; border-radius: 100px; margin-bottom: 12px; text-transform: uppercase; letter-spacing: 0.8px; }
.prod-body h3 { font-size: 1.05rem; font-weight: 700; color: var(--text); margin-bottom: 8px; letter-spacing: -0.01em; }
.prod-body p { font-size: 0.86rem; color: var(--text-muted); line-height: 1.65; flex: 1; }
.prod-spec { margin-top: 16px; padding-top: 14px; border-top: 1px solid var(--border); font-size: 0.78rem; color: var(--text-muted); }
.prod-spec strong { color: var(--accent); }
.prod-link { display: inline-flex; align-items: center; gap: 6px; margin-top: 14px; font-size: 0.84rem; font-weight: 700; color: var(--accent); transition: gap 0.25s; }
.prod-card:hover .prod-link { gap: 12px; }

/* WHY CARDS */
.why-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 22px; }
.why-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 36px 28px; transition: var(--transition); position: relative; overflow: hidden; }
.why-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); border-color: transparent; }
.why-num { font-size: 3.5rem; font-weight: 800; color: var(--border); position: absolute; top: 16px; right: 20px; letter-spacing: -0.05em; line-height: 1; transition: color 0.36s; }
.why-card:hover .why-num { color: rgba(232,96,10,0.1); }
.why-icon { width: 52px; height: 52px; border-radius: 14px; background: rgba(232,96,10,0.1); display: flex; align-items: center; justify-content: center; margin-bottom: 20px; transition: var(--transition); }
.why-icon svg { color: var(--accent); }
.why-card:hover .why-icon { background: var(--accent); }
.why-card:hover .why-icon svg { color: #fff; }
.why-card h3 { font-size: 1rem; font-weight: 700; color: var(--text); margin-bottom: 10px; }
.why-card p { font-size: 0.86rem; color: var(--text-muted); line-height: 1.65; }

/* TESTIMONIALS */
.test-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.test-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 32px; transition: var(--transition); }
.test-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: transparent; }
.stars { display: flex; gap: 3px; margin-bottom: 18px; }
.stars svg { color: var(--accent); }
.test-card p { font-size: 0.92rem; color: var(--text-muted); line-height: 1.78; font-style: italic; margin-bottom: 22px; }
.test-author { display: flex; align-items: center; gap: 14px; }
.test-avatar { width: 44px; height: 44px; border-radius: 12px; background: linear-gradient(135deg, var(--navy), #1e3a5f); display: flex; align-items: center; justify-content: center; color: #fff; font-weight: 700; font-size: 0.88rem; flex-shrink: 0; }
.test-info strong { display: block; font-size: 0.88rem; color: var(--text); font-weight: 700; }
.test-info span { font-size: 0.78rem; color: var(--text-muted); }

/* CTA BANNER */
.cta-banner { background: linear-gradient(150deg, #0c1929, #1a3050); padding: 100px 0; text-align: center; position: relative; overflow: hidden; }
.cta-banner::before { content: ''; position: absolute; inset: 0; background-image: linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px); background-size: 56px 56px; }
.cta-banner .container { position: relative; }
.cta-banner h2 { font-size: clamp(2rem, 4vw, 2.8rem); font-weight: 800; color: #fff; letter-spacing: -0.04em; margin-bottom: 16px; }
.cta-banner p { color: rgba(255,255,255,0.55); font-size: 1.05rem; max-width: 500px; margin: 0 auto 40px; line-height: 1.75; }
.cta-btns { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* FOOTER */
.footer { background: #08101c; padding: 80px 0 0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.5fr; gap: 48px; margin-bottom: 60px; }
.footer-logo img { height: 58px; width: auto; background: #fff; border-radius: 10px; padding: 4px 10px; margin-bottom: 18px; }
.footer-desc { color: rgba(255,255,255,0.38); font-size: 0.88rem; line-height: 1.8; }
.footer h4 { font-size: 0.75rem; font-weight: 700; color: rgba(255,255,255,0.9); text-transform: uppercase; letter-spacing: 2px; margin-bottom: 22px; }
.footer-links { display: flex; flex-direction: column; gap: 12px; }
.footer-links a { color: rgba(255,255,255,0.38); font-size: 0.87rem; transition: color 0.2s, transform 0.2s; display: inline-block; }
.footer-links a:hover { color: var(--accent); transform: translateX(4px); }
.footer-contact { display: flex; flex-direction: column; gap: 14px; }
.footer-contact .fci { display: flex; align-items: flex-start; gap: 12px; }
.footer-contact .fci svg { color: var(--accent); margin-top: 2px; flex-shrink: 0; }
.footer-contact .fci span { color: rgba(255,255,255,0.38); font-size: 0.87rem; line-height: 1.55; }
.footer-contact .fci a { color: var(--accent); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.06); padding: 22px 0; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; }
.footer-bottom p, .footer-bottom span { color: rgba(255,255,255,0.25); font-size: 0.8rem; }
.footer-bottom a { color: rgba(255,255,255,0.3); }

/* WHATSAPP */
.wa-btn { position: fixed; bottom: 28px; right: 28px; z-index: 99; width: 58px; height: 58px; background: #25D366; border-radius: 16px; display: flex; align-items: center; justify-content: center; box-shadow: 0 6px 24px rgba(37,211,102,0.32); transition: var(--transition); animation: wapulse 3s infinite; }
@keyframes wapulse { 0%,100%{box-shadow:0 6px 24px rgba(37,211,102,0.32)} 50%{box-shadow:0 6px 32px rgba(37,211,102,0.5)} }
.wa-btn:hover { transform: scale(1.08) translateY(-2px); animation: none; box-shadow: 0 8px 32px rgba(37,211,102,0.5); }
.wa-btn svg { width: 26px; height: 26px; fill: #fff; }
.wa-tip { position: absolute; right: 70px; top: 50%; transform: translateY(-50%); background: #fff; color: #0f1e32; padding: 9px 15px; border-radius: 10px; font-size: 0.8rem; font-weight: 700; box-shadow: var(--shadow-lg); white-space: nowrap; opacity: 0; pointer-events: none; transition: opacity 0.2s; font-family: var(--font); }
.wa-btn:hover .wa-tip { opacity: 1; }

/* SCROLL ANIMATIONS */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.7s cubic-bezier(0.4,0,0.2,1), transform 0.7s cubic-bezier(0.4,0,0.2,1); }
.reveal.in { opacity: 1; transform: translateY(0); }
.reveal.d1{transition-delay:0.08s} .reveal.d2{transition-delay:0.16s} .reveal.d3{transition-delay:0.24s}
.reveal.d4{transition-delay:0.32s} .reveal.d5{transition-delay:0.40s} .reveal.d6{transition-delay:0.48s}

/* FORM ELEMENTS */
.form-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 40px; box-shadow: var(--shadow-lg); position: relative; }
.form-card::before { content: ''; position: absolute; top: 0; left: 32px; right: 32px; height: 3px; background: linear-gradient(90deg, var(--accent), var(--accent-light)); border-radius: 0 0 3px 3px; }
.form-card h3 { font-size: 1.5rem; font-weight: 800; color: var(--text); margin-bottom: 6px; letter-spacing: -0.02em; }
.form-card .subtitle { font-size: 0.9rem; color: var(--text-muted); margin-bottom: 28px; }
.form-group { margin-bottom: 20px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
label { display: block; font-size: 0.84rem; font-weight: 700; color: var(--text); margin-bottom: 7px; }
input, select, textarea { width: 100%; padding: 12px 16px; border: 1.5px solid var(--border); border-radius: var(--radius); font-family: var(--font); font-size: 0.92rem; color: var(--text); background: var(--bg-card); transition: border-color 0.2s, box-shadow 0.2s; outline: none; }
input:focus, select:focus, textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(232,96,10,0.1); }
input::placeholder, textarea::placeholder { color: var(--border); }
textarea { resize: vertical; min-height: 110px; }
.checkbox-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 8px; }
.checkbox-item { display: flex; align-items: center; gap: 8px; font-size: 0.88rem; color: var(--text); cursor: pointer; font-family: var(--font); }
.checkbox-item input[type="checkbox"] { width: 16px; height: 16px; accent-color: var(--accent); cursor: pointer; }
.success-msg { display: none; background: #e8f5e9; border: 1px solid #a5d6a7; border-radius: var(--radius); padding: 16px 20px; margin-bottom: 20px; color: #2e7d32; font-size: 0.92rem; font-weight: 600; }
.success-msg.show { display: block; }

/* CONTACT CARDS */
.contact-card { display: flex; align-items: flex-start; gap: 16px; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 22px; transition: var(--transition); }
.contact-card:hover { border-color: var(--accent); box-shadow: var(--shadow); transform: translateX(4px); }
.contact-card .icon-wrap { width: 48px; height: 48px; background: rgba(232,96,10,0.09); border-radius: 12px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.contact-card .icon-wrap svg { color: var(--accent); }
.contact-card .info strong { font-size: 0.75rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 1px; font-weight: 700; }
.contact-card .info p { font-size: 0.95rem; color: var(--text); font-weight: 500; margin-top: 4px; }
.contact-card .info a { color: var(--accent); }

/* SPEC BADGES */
.spec-badge { display: inline-flex; align-items: center; background: linear-gradient(135deg, var(--navy), var(--navy-dark)); color: #fff; padding: 7px 16px; border-radius: 8px; font-size: 0.8rem; font-weight: 600; margin: 4px 4px 0 0; }

/* RESPONSIVE */
@media (max-width: 900px) {
  .prod-grid { grid-template-columns: 1fr 1fr; }
  .test-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .section { padding: 80px 0; }
  .form-row { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .nav-links { display: none; flex-direction: column; position: absolute; top: 76px; left: 0; right: 0; background: rgba(10,22,40,0.98); backdrop-filter: blur(20px); padding: 12px; gap: 2px; border-bottom: 1px solid rgba(255,255,255,0.06); }
  .nav-links.open { display: flex; }
  .nav-toggle { display: block; }
  .prod-grid { grid-template-columns: 1fr; }
  .why-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .section { padding: 64px 0; }
  .checkbox-grid { grid-template-columns: 1fr; }
}