/* ============================================================
   OHM Innovations — Main Stylesheet
   Layout adapted from the client's reference site; recolored to
   OHM's orange / blue brand identity.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,400;9..144,600;9..144,700&family=Public+Sans:wght@400;500;600;700&display=swap');

:root {
  --primary:    #FF6D06;
  --primary-dk: #CC5704;
  --blue:       #0047AB;
  --blue-dk:    #00358C;
  --dark:       #0047AB;
  --dark2:      #00203F;
  --ink:        #1B2430;
  --ink-soft:   #47546A;
  --bg:         #f5f7fa;
  --surface:    #ffffff;
  --line:       #e3e8ee;
  --radius:     12px;
  --shadow:     0 8px 28px rgba(0,20,60,.10);
  --shadow-lg:  0 18px 45px rgba(0,20,60,.16);
  --container:  1200px;
  --font-head:  'Fraunces', Georgia, serif;
  --font-body:  'Public Sans', system-ui, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-body); font-size: 17px; line-height: 1.65; color: #000; background: #fff; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
h1,h2,h3,h4 { font-family: var(--font-head); color: var(--ink); line-height: 1.18; margin-bottom: .5em; }
h1 { font-size: clamp(2rem,4vw,3.2rem); }
h2 { font-size: clamp(1.6rem,3vw,2.4rem); }
h3 { font-size: 1.25rem; }
p  { margin-bottom: 1em; }

.container { max-width: var(--container); margin: 0 auto; padding: 0 20px; }
section, .section { padding: 80px 0; }

/* ── BUTTONS ── */
.btn { display: inline-flex; align-items: center; gap: .5em; font-weight: 700; padding: 14px 28px; border-radius: 40px; border: 2px solid transparent; cursor: pointer; transition: .3s; font-size: .95rem; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dk); transform: translateY(-3px); box-shadow: 0 10px 25px rgba(255,109,6,.3); }
.btn-outline { background: transparent; border-color: var(--primary); color: var(--primary); }
.btn-outline:hover { background: var(--primary); color: #fff; }
.btn-dark { background: var(--blue); color: #fff; }
.btn-dark:hover { background: var(--blue-dk); transform: translateY(-3px); }

/* ── SITE HEADER (single-line, dark navy) ── */
.site-header { background: var(--dark2); box-shadow: 0 4px 20px rgba(0,10,30,.22); position: sticky; top: 0; z-index: 500; }
.site-header .container { display: flex; align-items: center; gap: 28px; padding-top: .65rem; padding-bottom: .65rem; }

.logo { display: flex; align-items: center; flex-shrink: 0; }
.logo img { height: 46px; width: auto; max-width: 190px; object-fit: contain; background: #fff; border-radius: 8px; padding: 6px 12px; }

.navbar { flex: 1; display: flex; justify-content: center; min-width: 0; }
.nav-menu { display: flex; align-items: center; gap: 2px; }
.nav-menu li { position: relative; }
.nav-menu a { padding: .6rem .9rem; border-radius: 6px; font-weight: 600; font-size: .87rem; color: rgba(255,255,255,.85); transition: .25s; display: flex; align-items: center; gap: .4em; white-space: nowrap; }
.nav-menu a:hover { color: #fff; background: rgba(255,255,255,.09); }
.nav-menu a.active { color: var(--primary); background: rgba(255,109,6,.14); }

/* Dropdown */
.has-dropdown .dropdown { position: absolute; top: calc(100% + 10px); left: 0; background: #fff; min-width: 260px; border-radius: 10px; box-shadow: var(--shadow-lg); border-top: 3px solid var(--primary); opacity: 0; visibility: hidden; transform: translateY(10px); transition: .25s; z-index: 100; }
.has-dropdown:hover .dropdown { opacity: 1; visibility: visible; transform: translateY(0); }
.dropdown li a { padding: .65rem 1.2rem; font-size: .84rem; font-weight: 500; color: var(--ink); background: none; border-radius: 0; border-bottom: 1px solid var(--line); }
.dropdown li:last-child a { border: none; }
.dropdown li a:hover { background: #FFF1E6; color: var(--primary); padding-left: 1.5rem; }

.header-right { display: flex; align-items: center; gap: 18px; flex-shrink: 0; }
.header-phone { display: flex; align-items: center; gap: .55em; color: #fff; font-weight: 700; font-size: .87rem; white-space: nowrap; transition: .25s; }
.header-phone i { width: 32px; height: 32px; border-radius: 50%; background: rgba(255,255,255,.12); display: flex; align-items: center; justify-content: center; color: var(--primary); font-size: .8rem; }
.header-phone:hover { color: #FFD3AE; }
.header-divider { width: 1px; height: 26px; background: rgba(255,255,255,.18); }

.appointment-btn { background: var(--primary); color: #fff; padding: .68rem 1.4rem; border-radius: 30px; font-weight: 700; font-size: .85rem; display: flex; align-items: center; gap: .5rem; transition: .3s; white-space: nowrap; }
.appointment-btn:hover { background: var(--primary-dk); transform: translateY(-2px); box-shadow: 0 8px 20px rgba(255,109,6,.35); }

/* Hamburger */
.hamburger { display: none; background: none; border: none; font-size: 1.4rem; cursor: pointer; color: #fff; padding: .4rem; flex-shrink: 0; margin-left: auto; }

/* Mobile Nav */
.mobile-nav { position: fixed; top: 0; right: -340px; width: 300px; height: 100vh; background: #fff; z-index: 999; box-shadow: -6px 0 30px rgba(0,20,60,.18); transition: right .35s ease; overflow-y: auto; }
.mobile-nav.open { right: 0; }
.mobile-nav-head { display: flex; align-items: center; justify-content: space-between; padding: 1.2rem 1.4rem; background: var(--dark2); color: #fff; font-weight: 700; }
.mobile-nav-head button { background: none; border: none; color: #fff; font-size: 1.4rem; cursor: pointer; }
.mobile-nav-contact { display: flex; flex-direction: column; gap: .65rem; padding: 1.1rem 1.4rem; background: #f9fafb; border-bottom: 1px solid var(--line); }
.mobile-nav-contact a { display: flex; align-items: center; gap: .6em; font-size: .88rem; font-weight: 700; color: var(--ink); }
.mobile-nav-contact a i { color: var(--primary); width: 20px; text-align: center; }
.mobile-nav-contact .appointment-btn { justify-content: center; margin-top: .3rem; }
.mobile-nav ul { padding: .8rem 0; }
.mobile-nav ul li a, .mob-toggle { display: flex; align-items: center; justify-content: space-between; padding: .85rem 1.4rem; font-size: .9rem; font-weight: 500; color: var(--ink); border-bottom: 1px solid var(--line); cursor: pointer; }
.mobile-nav ul li a:hover, .mob-toggle:hover { background: #FFF1E6; color: var(--primary); }
.mob-dropdown ul { display: none; background: #f9fafb; }
.mob-dropdown.open ul { display: block; }
.mob-dropdown ul li a { padding-left: 2.2rem; font-size: .84rem; }
.mob-overlay { display: none; position: fixed; inset: 0; background: rgba(0,10,30,.5); z-index: 998; }
.mob-overlay.show { display: block; }

/* ── PAGE BANNER ── */
.page-banner { background: linear-gradient(135deg, var(--dark) 0%, var(--dark2) 100%); padding: 3.5rem 0; text-align: center; position: relative; overflow: hidden; }
.page-banner h1 { color: #fff; font-size: clamp(1.8rem,3.5vw,2.6rem); margin-bottom: .5rem; }
.page-banner .breadcrumb { display: flex; align-items: center; justify-content: center; gap: .5rem; font-size: .84rem; color: rgba(255,255,255,.7); }
.page-banner .breadcrumb a { color: rgba(255,255,255,.7); transition: .2s; }
.page-banner .breadcrumb a:hover { color: var(--primary); }
.page-banner .breadcrumb .sep { color: rgba(255,255,255,.35); }

/* ── HERO ── */
.hero { background: linear-gradient(135deg,#eef3fb,#fdeee0); padding: 100px 0 0; overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.hero-copy .eyebrow { display: inline-block; background: var(--blue); color: #fff; font-size: .8rem; font-weight: 700; padding: .45rem 1.1rem; border-radius: 30px; margin-bottom: 1.2rem; }
.hero-copy h1 { color: var(--ink); font-size: clamp(2rem,3.5vw,2.8rem); margin-bottom: 1rem; }
.hero-copy .lede { color: var(--ink-soft); line-height: 1.8; margin-bottom: 1.8rem; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-figure { border-radius: 20px; overflow: hidden; box-shadow: var(--shadow-lg); }

/* Hero image slider — 3-image auto-rotating crossfade */
.hero-slider { position: relative; aspect-ratio: 4/3; background: #f4f2ee; }
.hero-slide { position: absolute; inset: 0; opacity: 0; transition: opacity 1.1s ease; }
.hero-slide.active { opacity: 1; z-index: 2; }
.hero-slide img { width: 100%; height: 100%; object-fit: cover; }
.hero-slider-caption { position: absolute; left: 0; right: 0; bottom: 0; padding: 14px 20px 40px; background: linear-gradient(0deg, rgba(0,10,30,.72), rgba(0,10,30,0)); color: #fff; font-size: .85rem; font-weight: 700; opacity: 0; transition: opacity 1.1s ease; z-index: 1; pointer-events: none; }
.hero-slide.active .hero-slider-caption { opacity: 1; z-index: 3; }
.hero-slider-dots { position: absolute; bottom: 16px; left: 50%; transform: translateX(-50%); display: flex; gap: 8px; z-index: 5; }
.hero-slider-dots button { width: 9px; height: 9px; padding: 0; border: none; border-radius: 50%; background: rgba(255,255,255,.55); cursor: pointer; transition: .25s; }
.hero-slider-dots button.active { background: var(--primary); width: 24px; border-radius: 6px; }
.vitals-strip { background: var(--dark2); margin-top: 60px; }
.vitals-strip .container { display: grid; grid-template-columns: repeat(4,1fr); }
.vital { padding: 1.5rem 1.2rem; text-align: center; border-right: 1px solid rgba(255,255,255,.1); }
.vital:last-child { border: none; }
.vital .value { display: block; font-size: 2rem; font-weight: 800; font-family: var(--font-head); color: #fff; }
.vital .label { font-size: .78rem; color: #cfe0ff; text-transform: uppercase; letter-spacing: .05em; }

/* ── SECTION HEAD ── */
.section-head { text-align: center; margin-bottom: 50px; }
.section-head .eyebrow { color: var(--primary); font-weight: 700; font-size: .78rem; letter-spacing: .1em; text-transform: uppercase; margin-bottom: .6rem; display: block; }
.section-head h2 { color: var(--ink); margin-bottom: .6rem; }
.section-head p { max-width: 600px; margin: 0 auto; color: var(--ink-soft); }

/* ── PRODUCT CARDS ── */
.products-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 28px; }
.product-card { background: #fff; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); transition: .35s; border: 1px solid var(--line); }
.product-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); border-color: var(--primary); }
.product-card .card-img { position: relative; overflow: hidden; height: 240px; cursor: zoom-in; }
.product-card .card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.product-card:hover .card-img img { transform: scale(1.06); }
.product-card .card-body { padding: 1.4rem; }
.product-card h3 { font-size: 1.05rem; color: var(--ink); margin-bottom: .4rem; }
.product-card p { font-size: .83rem; color: var(--ink-soft); line-height: 1.65; margin-bottom: .8rem; }
.card-link { font-size: .8rem; font-weight: 700; color: var(--primary); display: flex; align-items: center; gap: .3rem; transition: gap .2s; }
.card-link:hover { gap: .6rem; }
.card-link::after { content: '→'; }
.cat-badge { position: absolute; top: 10px; left: 10px; background: var(--blue); color: #fff; font-size: .7rem; font-weight: 700; padding: .25rem .7rem; border-radius: 20px; }

/* ── CATEGORY FILTER TABS ── */
.cat-tabs { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 36px; }
.cat-tab { padding: .55rem 1.3rem; border-radius: 30px; border: 1.5px solid var(--line); font-size: .83rem; font-weight: 600; cursor: pointer; background: #fff; color: var(--ink-soft); transition: .25s; }
.cat-tab:hover, .cat-tab.active { background: var(--primary); color: #fff; border-color: var(--primary); }

/* ── PRODUCT DETAIL ── */
.product-detail { background: #fff; }
.pd-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; align-items: start; }
.pd-gallery .main-img { border-radius: var(--radius); overflow: hidden; margin-bottom: 12px; height: 440px; box-shadow: var(--shadow); background: #f5f7fa; cursor: zoom-in; }
.pd-gallery .main-img img { width: 100%; height: 100%; object-fit: cover; }
.pd-thumbs { display: grid; grid-template-columns: repeat(4,1fr); gap: 8px; }
.pd-thumb { height: 80px; border-radius: 8px; overflow: hidden; cursor: pointer; border: 2px solid var(--line); transition: .2s; background: #f5f7fa; }
.pd-thumb.active, .pd-thumb:hover { border-color: var(--primary); }
.pd-thumb img { width: 100%; height: 100%; object-fit: cover; }
.pd-info .eyebrow { color: var(--primary); font-size: .78rem; font-weight: 700; text-transform: uppercase; letter-spacing: .1em; }
.pd-info h1, .pd-info h2 { font-size: 1.9rem; margin: .5rem 0 1rem; }
.pd-info p { line-height: 1.8; color: var(--ink-soft); margin-bottom: 1.2rem; }
.pd-actions { display: flex; gap: 14px; margin-top: 1.8rem; flex-wrap: wrap; }
.specs-card { background: var(--bg); border-radius: var(--radius); padding: 2.2rem; margin-top: 3rem; }
.specs-card h3 { margin-bottom: 1.2rem; }
.specs-table { width: 100%; border-collapse: collapse; font-size: .92rem; background: #fff; border-radius: 10px; overflow: hidden; box-shadow: var(--shadow); }
.specs-table tr { border-bottom: 1px solid var(--line); }
.specs-table tr:last-child { border: none; }
.specs-table th { width: 34%; text-align: left; padding: .85rem 1.1rem; font-weight: 600; color: var(--ink); background: #eef2f8; }
.specs-table td { padding: .85rem 1.1rem; color: var(--ink-soft); }
.pd-note { font-size: .82rem; color: var(--ink-soft); background: #FFF1E6; border: 1px solid #ffd9b3; border-radius: 8px; padding: .9rem 1.1rem; margin-top: 1.5rem; }
.related-products { margin-top: 2rem; }

/* ── GALLERY ── */
.gallery-grid { columns: 3; gap: 14px; }
.gallery-item { break-inside: avoid; margin-bottom: 14px; border-radius: var(--radius); overflow: hidden; position: relative; cursor: zoom-in; }
.gallery-item img { width: 100%; display: block; transition: transform .5s; }
.gallery-item:hover img { transform: scale(1.05); }
.gallery-item .g-ov { position: absolute; inset: 0; background: rgba(0,32,63,.55); opacity: 0; transition: .3s; display: flex; align-items: center; justify-content: center; color: #fff; font-size: 1.8rem; }
.gallery-item:hover .g-ov { opacity: 1; }
.gallery-cap { position:absolute; left:0; right:0; bottom:0; background:linear-gradient(0deg,rgba(0,20,50,.75),transparent); color:#fff; font-size:.75rem; font-weight:600; padding:1.6rem .8rem .5rem; }

/* Lightbox */
.lightbox { display: none; position: fixed; inset: 0; background: rgba(0,10,25,.92); z-index: 3000; align-items: center; justify-content: center; }
.lightbox.open { display: flex; }
.lightbox img { max-width: 90vw; max-height: 88vh; border-radius: 10px; }
.lb-close { position: absolute; top: 1.5rem; right: 2rem; color: #fff; font-size: 2.2rem; cursor: pointer; background: none; border: none; }

/* ── ABOUT ── */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.about-figure img { border-radius: var(--radius); box-shadow: var(--shadow-lg); }
.feature-list { margin-top: 1.5rem; }
.feature-list li { display: flex; gap: .7rem; align-items: flex-start; margin-bottom: .9rem; font-size: 17px; }
.feature-list li i { color: var(--primary); margin-top: .2rem; flex-shrink: 0; }

/* ── WHY CHOOSE US ── */
.why-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; }
.why-card { background: #fff; border-radius: var(--radius); padding: 2rem 1.7rem; border: 1.5px solid var(--line); transition: .3s; }
.why-card:hover { border-color: var(--primary); transform: translateY(-6px); box-shadow: var(--shadow); }
.why-num { width: 52px; height: 52px; border-radius: 50%; background: var(--primary); color: #fff; font-size: 1.2rem; font-weight: 800; display: flex; align-items: center; justify-content: center; margin-bottom: 1rem; }
.why-card h3 { color: var(--ink); margin-bottom: .5rem; font-size: 1.05rem; }
.why-card p { font-size: .95rem; color: #000; line-height: 1.7; margin: 0; }

/* ── CTA BAND ── */
.cta-band { background: var(--primary); color: #fff; text-align: center; padding: 70px 0; }
.cta-band h2 { color: #fff; margin-bottom: 1rem; font-size: clamp(1.5rem,3vw,2.2rem); }
.cta-band p { color: rgba(255,255,255,.9); max-width: 650px; margin: 0 auto 2rem; line-height: 1.8; }
.cta-band .btn-primary { background: #fff; color: var(--primary); }
.cta-band .btn-primary:hover { background: var(--dark2); color: #fff; }

/* ── CONTACT ── */
.contact-grid { display: grid; grid-template-columns: 1fr 1.4fr; gap: 50px; }
.contact-info-box h3 { color: var(--ink); margin-bottom: 1.5rem; }
.ci-item { display: flex; gap: 1rem; align-items: flex-start; margin-bottom: 1.5rem; }
.ci-ico { width: 44px; height: 44px; border-radius: 10px; background: #FFF1E6; display: flex; align-items: center; justify-content: center; color: var(--primary); font-size: 1.1rem; flex-shrink: 0; }
.ci-text strong { display: block; font-size: .84rem; color: var(--ink); margin-bottom: .25rem; }
.ci-text a, .ci-text p { font-size: .84rem; color: var(--ink-soft); }
.ci-text a:hover { color: var(--primary); }
.contact-map { height: 260px; border-radius: var(--radius); overflow: hidden; margin-top: 1.5rem; border: 1px solid var(--line); }
.contact-map iframe { width: 100%; height: 100%; border: none; }
.contact-form-card { background: var(--bg); border-radius: var(--radius); padding: 2.2rem; }
.contact-form-card h3 { margin-bottom: 1.4rem; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.fg { display: flex; flex-direction: column; gap: .3rem; margin-bottom: .9rem; }
.fg label { font-size: .78rem; font-weight: 600; color: var(--ink); }
.fg input, .fg select, .fg textarea { border: 1.5px solid var(--line); border-radius: 8px; padding: .72rem 1rem; font-family: var(--font-body); font-size: .88rem; color: var(--ink); outline: none; transition: border-color .25s; background: #fff; }
.fg input:focus, .fg select:focus, .fg textarea:focus { border-color: var(--primary); }
.fg textarea { min-height: 110px; resize: vertical; }
.form-ok  { display: none; background: #d1fae5; border: 1px solid #6ee7b7; color: #065f46; padding: .9rem 1.1rem; border-radius: 8px; font-size: .87rem; margin-top: .7rem; }
.form-err { display: none; background: #fee2e2; border: 1px solid #fca5a5; color: #991b1b; padding: .9rem 1.1rem; border-radius: 8px; font-size: .87rem; margin-top: .7rem; }

/* ── FOOTER ── */
.footer { background: var(--dark2); color: #fff; padding: 80px 0 0; position: relative; }
.footer::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 4px; background: linear-gradient(90deg, var(--primary), var(--blue), #fff, var(--primary)); }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1.3fr 1.3fr; gap: 40px; }
.footer-logo { display: flex; align-items: center; gap: 14px; margin-bottom: 18px; }
.footer-logo img { height: 62px; width: auto; max-width: 240px; object-fit: contain; background: #fff; border-radius: 10px; padding: 8px 14px; }
.footer-logo h3 { font-size: 1.3rem; color: #fff; margin: 0; }
.footer-logo span { font-size: .76rem; color: #bbb; }
.footer p { color: #c7d3e6; line-height: 1.85; margin-bottom: 14px; font-size: .88rem; }
.footer-col h4 { color: #fff; font-size: 1.1rem; margin-bottom: 20px; padding-bottom: 10px; border-bottom: 2px solid var(--primary); }
.footer ul li { margin-bottom: 12px; }
.footer ul li a { color: #c7d3e6; font-size: .86rem; display: flex; align-items: center; gap: 9px; transition: .3s; }
.footer ul li a:hover { color: #fff; padding-left: 6px; }
.footer ul li a i { color: var(--primary); font-size: .78rem; }
.contact-info li { display: flex; align-items: flex-start; gap: 14px; margin-bottom: 18px; }
.contact-info i { width: 40px; height: 40px; min-width: 40px; background: var(--primary); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 1rem; color: #fff; }
.contact-info strong { display: block; color: #fff; margin-bottom: 4px; font-size: .84rem; }
.contact-info span, .contact-info a { color: #c7d3e6; font-size: .83rem; line-height: 1.65; }
.footer-social { display: flex; gap: 12px; margin-top: 20px; }
.footer-social a { width: 44px; height: 44px; border-radius: 50%; background: #012a52; border: 1px solid rgba(255,255,255,.12); display: flex; align-items: center; justify-content: center; color: #fff; transition: .35s; }
.footer-social a:hover { background: var(--primary); transform: translateY(-5px); box-shadow: 0 8px 20px rgba(255,109,6,.35); }
.footer-bottom { margin-top: 60px; background: #001631; border-top: 1px solid rgba(255,255,255,.08); padding: 18px 0; }
.footer-bottom .container { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; }
.footer-bottom p { margin: 0; color: #7f93b3; font-size: .8rem; }
.footer-bottom a { color: var(--primary); font-weight: 600; }

/* ── WHATSAPP FLOAT ── */
.wa-float { position: fixed; bottom: 2rem; right: 2rem; z-index: 998; width: 58px; height: 58px; border-radius: 50%; background: #25d366; color: #fff; display: flex; align-items: center; justify-content: center; font-size: 1.6rem; box-shadow: 0 6px 22px rgba(37,211,102,.45); transition: transform .3s; }
.wa-float:hover { transform: scale(1.1) rotate(-8deg); }

/* ── LIGHTBOX (product image zoom) ── */
.pd-lightbox {
  display:none; position:fixed; inset:0; z-index:9999;
  background:rgba(0,10,25,.92);
  flex-direction:column; align-items:center; justify-content:center;
  padding:2rem;
}
.pd-lightbox.open { display:flex; }
.pd-lightbox img { max-width:90vw; max-height:85vh; object-fit:contain; box-shadow:0 0 40px rgba(0,0,0,.5); border-radius: 8px; }
.pd-lightbox-caption { color:#fff; margin-top:1rem; font-size:1.05rem; text-align:center; }
.pd-lightbox-close {
  position:absolute; top:1.25rem; right:1.75rem;
  color:#fff; font-size:2.5rem; line-height:1;
  cursor:pointer; user-select:none;
}

/* ── ALERTS ── */
.alert { padding: .9rem 1.2rem; border-radius: 8px; font-size: .88rem; margin-bottom: 1rem; }
.alert-success { background: #d1fae5; color: #065f46; border: 1px solid #6ee7b7; }
.alert-danger  { background: #fee2e2; color: #991b1b; border: 1px solid #fca5a5; }
.alert-info    { background: #dbeafe; color: #1e3a8a; border: 1px solid #93c5fd; }

/* ── SCROLL ANIM ── */
.anim { opacity: 0; transform: translateY(24px); transition: opacity .6s ease, transform .6s ease; }
.anim.anim-in { opacity: 1; transform: translateY(0); }

/* ── RESPONSIVE ── */
@media(max-width:1100px) {
  .hero-grid, .about-grid, .contact-grid, .pd-grid { grid-template-columns: 1fr; gap: 40px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .products-grid { grid-template-columns: 1fr 1fr; }
  .vitals-strip .container { grid-template-columns: 1fr 1fr; }
  .hamburger { display: block; }
  .navbar, .header-right { display: none; }
  .site-header .container { gap: 16px; }
  .why-grid { grid-template-columns: 1fr 1fr; }
  .gallery-grid { columns: 2; }
}
@media(max-width:768px) {
  section, .section { padding: 60px 0; }
  .products-grid { grid-template-columns: 1fr; }
  .why-grid { grid-template-columns: 1fr; }
  .gallery-grid { columns: 1; }
  .footer-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .vitals-strip .container { grid-template-columns: 1fr 1fr; }
  .pd-gallery .main-img { height: 300px; }
  .pd-thumbs { grid-template-columns: repeat(4,1fr); }
  .specs-card { padding: 1.4rem; }
  .specs-table th, .specs-table td { padding: .65rem .8rem; font-size: .85rem; }
}
@media(max-width:480px) {
  .hero-actions { flex-direction: column; }
  .vitals-strip .container { grid-template-columns: 1fr; }
  .pd-thumbs { grid-template-columns: repeat(3,1fr); }
  .pd-actions { flex-direction: column; }
  .pd-actions .btn { width: 100%; justify-content: center; }
  .site-header .logo img { height: 38px; padding: 4px 9px; }
}