/* ===== CSS Variables & Reset ===== */
:root {
    --color: #c0392b;
    --color-dark: #a93226;
    --color-light: #e74c3c;
    --color-hover: #e74c3c;
    --fontcolor: #333;
    --fontcolor-light: #666;
    --bg-light: #f8f9fa;
    --bg-dark: #1a1a2e;
    --bg-footer: #16213e;
    --white: #fff;
    --border: #e0e0e0;
    --shadow: 0 2px 15px rgba(0,0,0,0.08);
    --shadow-lg: 0 5px 30px rgba(0,0,0,0.12);
    --radius: 8px;
    --transition: all 0.3s ease;
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; font-size: 16px; }

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--fontcolor);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

a { text-decoration: none; color: inherit; transition: var(--transition); }
ul { list-style: none; }
img { max-width: 100%; height: auto; display: block; }

/* ===== COMMON ===== */
.common-wrapper { width: 100%; max-width: 1400px; margin: 0 auto; padding: 0 20px; }

.section-padding { padding: 80px 0; }
.bg-light { background: var(--bg-light); }

.common-tip {
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 3px;
    color: var(--color);
    text-transform: uppercase;
    margin-bottom: 10px;
}

.common-title {
    font-size: 36px;
    font-weight: 700;
    color: #1a1a1a;
    margin-bottom: 15px;
    position: relative;
    padding-bottom: 20px;
}

.common-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 4px;
    background: var(--color);
    border-radius: 2px;
}

.section-desc {
    font-size: 16px;
    color: var(--fontcolor-light);
    max-width: 800px;
    margin-bottom: 40px;
    line-height: 1.8;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 30px;
    background: var(--color);
    color: var(--white);
    font-weight: 600;
    font-size: 15px;
    border-radius: 4px;
    border: 2px solid var(--color);
    cursor: pointer;
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn-primary:hover { background: var(--color-dark); border-color: var(--color-dark); transform: translateY(-2px); box-shadow: 0 4px 12px rgba(192,57,43,0.3); }

.btn-outline {
    display: inline-flex;
    align-items: center;
    padding: 12px 30px;
    background: transparent;
    color: var(--white);
    font-weight: 600;
    font-size: 15px;
    border-radius: 4px;
    border: 2px solid var(--white);
    cursor: pointer;
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn-outline:hover { background: var(--white); color: var(--color); }

.btn-outline-sm {
    display: inline-block;
    padding: 8px 20px;
    background: transparent;
    color: var(--color);
    font-weight: 600;
    font-size: 14px;
    border-radius: 4px;
    border: 1px solid var(--color);
    transition: var(--transition);
}

.btn-outline-sm:hover { background: var(--color); color: var(--white); }

/* ===== TOP BAR ===== */
.head-top {
    background: var(--bg-dark);
    color: #ccc;
    font-size: 13px;
    padding: 8px 0;
    line-height: 1;
}

.head-top .common-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
}

.top-left { display: flex; align-items: center; gap: 2px; flex-wrap: wrap; }
.top-left a { color: #ccc; }
.top-left a:hover { color: var(--white); }
.icon-svg { flex-shrink: 0; }

.top-right { display: flex; align-items: center; gap: 15px; }

.search-wrap {
    display: flex;
    align-items: center;
    background: rgba(255,255,255,0.1);
    border-radius: 4px;
    overflow: hidden;
}

.search-wrap input {
    width: 180px;
    height: 32px;
    padding: 0 12px;
    border: none;
    outline: none;
    background: transparent;
    color: var(--white);
    font-size: 13px;
}

.search-wrap input::placeholder { color: #999; }

.search-btn {
    width: 36px;
    height: 32px;
    background: var(--color);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
}

.search-btn:hover { background: var(--color-light); }

/* ===== HEADER ===== */
.head {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--white);
    box-shadow: 0 2px 10px rgba(0,0,0,0.06);
    transition: var(--transition);
}

.head.scrolled { box-shadow: 0 4px 20px rgba(0,0,0,0.1); }

.head-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
    gap: 20px;
}

.head-logo a { display: flex; align-items: center; }

.logo-text {
    font-size: 22px;
    font-weight: 800;
    color: var(--bg-dark);
    letter-spacing: 1px;
}

.logo-sub { font-weight: 400; font-size: 14px; color: #888; letter-spacing: 3px; }

/* Navigation */
.head-nav ul { display: flex; gap: 5px; }

.head-nav a {
    display: block;
    padding: 8px 14px;
    font-size: 14px;
    font-weight: 500;
    color: var(--fontcolor);
    border-radius: 4px;
    white-space: nowrap;
    transition: var(--transition);
}

.head-nav a:hover,
.head-nav a.active { color: var(--color); background: rgba(192,57,43,0.06); }

/* Mobile Nav Button */
.nav-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 5px;
    z-index: 1001;
}

.nav-btn span {
    display: block;
    width: 26px;
    height: 2.5px;
    background: var(--fontcolor);
    border-radius: 2px;
    transition: var(--transition);
}

.nav-btn.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-btn.active span:nth-child(2) { opacity: 0; }
.nav-btn.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

.head-contact .btn-primary { padding: 10px 24px; font-size: 13px; white-space: nowrap; }

/* ===== HERO ===== */
.hero {
    position: relative;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: #1a1a2e;
}

.hero-bg {
    position: absolute;
    inset: 0;
}

.hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.5;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(26,26,46,0.85) 0%, rgba(192,57,43,0.4) 100%);
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    color: var(--white);
    padding: 40px 20px;
    max-width: 900px;
}

.hero-subtitle {
    display: inline-block;
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: rgba(255,255,255,0.9);
    margin-bottom: 15px;
    padding: 6px 18px;
    border: 1px solid rgba(255,255,255,0.3);
    border-radius: 30px;
    background: rgba(255,255,255,0.08);
}

.hero-content h1 {
    font-size: 48px;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 20px;
    text-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

.hero-content > p {
    font-size: 18px;
    color: rgba(255,255,255,0.85);
    margin-bottom: 35px;
    max-width: 650px;
    margin-left: auto;
    margin-right: auto;
}

.hero-btns { display: flex; gap: 15px; justify-content: center; flex-wrap: wrap; margin-bottom: 50px; }

.hero-stats {
    display: flex;
    gap: 30px;
    justify-content: center;
    flex-wrap: wrap;
    padding-top: 30px;
    border-top: 1px solid rgba(255,255,255,0.15);
}

.hero-stat { text-align: center; }
.hero-stat strong { display: block; font-size: 28px; font-weight: 700; color: var(--color-light); }
.hero-stat span { font-size: 13px; color: rgba(255,255,255,0.7); text-transform: uppercase; letter-spacing: 1px; }

/* ===== ABOUT ===== */
.about-flex { display: flex; gap: 50px; align-items: center; }
.about-text { flex: 1; }
.about-text p { margin-bottom: 15px; line-height: 1.8; color: var(--fontcolor-light); }
.about-text .btn-primary { margin-top: 20px; }

.about-list { margin: 20px 0; }
.about-list li { padding: 8px 0; color: var(--fontcolor); line-height: 1.6; }
.check-mark { color: var(--color); font-weight: 700; margin-right: 8px; font-size: 18px; }

.about-img { flex: 0 0 45%; }
.about-img img { border-radius: var(--radius); box-shadow: var(--shadow-lg); width: 100%; }

/* ===== CERTIFICATIONS ===== */
.certs-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}

.cert-card {
    background: var(--white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    text-align: center;
}

.cert-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }

.cert-img {
    height: 220px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #f9f9f9;
    padding: 20px;
}

.cert-img img { max-height: 180px; object-fit: contain; }

.cert-card h4 { font-size: 16px; padding: 15px 15px 5px; color: #1a1a1a; }
.cert-card p { font-size: 13px; color: var(--fontcolor-light); padding: 0 15px 20px; }

/* ===== PRODUCTS ===== */
.products-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    margin-bottom: 30px;
}

.product-card {
    background: var(--white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    display: flex;
}

.product-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }

.product-img { flex: 0 0 45%; overflow: hidden; }
.product-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.product-card:hover .product-img img { transform: scale(1.05); }

.product-info { flex: 1; padding: 25px; display: flex; flex-direction: column; }
.product-info h3 { font-size: 20px; margin-bottom: 10px; color: #1a1a1a; }
.product-info > p { font-size: 14px; color: var(--fontcolor-light); margin-bottom: 12px; line-height: 1.6; flex: 1; }
.product-info ul { margin-bottom: 15px; }
.product-info ul li { font-size: 13px; padding: 3px 0; color: var(--fontcolor-light); position: relative; padding-left: 16px; }
.product-info ul li::before { content: '•'; position: absolute; left: 0; color: var(--color); font-weight: 700; }

.spec-note { text-align: center; }
.spec-caption { font-size: 14px; color: var(--fontcolor-light); margin-top: 15px; }

/* ===== WORKING PRINCIPLE ===== */
.principle-flex { display: flex; gap: 50px; align-items: flex-start; }
.principle-img { flex: 0 0 40%; }
.principle-img img { border-radius: var(--radius); box-shadow: var(--shadow-lg); }
.principle-text { flex: 1; }

.principle-step {
    display: flex;
    gap: 20px;
    margin-bottom: 25px;
    padding-bottom: 25px;
    border-bottom: 1px solid var(--border);
}

.principle-step:last-child { border-bottom: none; margin-bottom: 0; padding-bottom: 0; }

.step-num {
    flex-shrink: 0;
    width: 45px;
    height: 45px;
    background: var(--color);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 20px;
}

.step-content h4 { font-size: 18px; margin-bottom: 6px; color: #1a1a1a; }
.step-content p { font-size: 14px; color: var(--fontcolor-light); line-height: 1.7; }

/* ===== FEATURES ===== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
}

.feature-card {
    background: var(--white);
    padding: 30px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid transparent;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(192,57,43,0.15);
}

.feature-icon { margin-bottom: 15px; }
.feature-card h4 { font-size: 17px; margin-bottom: 10px; color: #1a1a1a; }
.feature-card p { font-size: 14px; color: var(--fontcolor-light); line-height: 1.7; }

/* ===== APPLICATIONS ===== */
.apps-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.app-card {
    position: relative;
    border-radius: var(--radius);
    overflow: hidden;
    height: 280px;
    cursor: pointer;
}

.app-img { position: absolute; inset: 0; }
.app-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.app-card:hover .app-img img { transform: scale(1.08); }

.app-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.85) 0%, rgba(0,0,0,0.2) 60%);
    transition: var(--transition);
}

.app-card:hover .app-overlay { background: linear-gradient(to top, rgba(192,57,43,0.9) 0%, rgba(0,0,0,0.3) 60%); }

.app-content {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 25px;
    color: var(--white);
}

.app-content h4 { font-size: 18px; margin-bottom: 8px; }
.app-content p { font-size: 13px; line-height: 1.6; opacity: 0.9; }

/* ===== VIDEO ===== */
.video-wrapper {
    display: flex;
    justify-content: center;
}

/* ===== CASES ===== */
.cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
}

.case-card {
    background: var(--white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.case-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }

.case-img { height: 200px; overflow: hidden; }
.case-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s; }
.case-card:hover .case-img img { transform: scale(1.05); }

.case-info { padding: 20px; }
.case-info h4 { font-size: 17px; margin-bottom: 5px; }
.case-loc { font-size: 13px; color: var(--color); font-weight: 600; margin-bottom: 10px; }
.case-info > p { font-size: 14px; color: var(--fontcolor-light); line-height: 1.6; }

/* ===== FAQ ===== */
.faq-list { max-width: 900px; margin: 0 auto; }

.faq-item {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 12px;
    overflow: hidden;
    transition: var(--transition);
}

.faq-item:hover { border-color: #ccc; }

.faq-q {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 22px;
    cursor: pointer;
    font-weight: 600;
    font-size: 16px;
    color: #1a1a1a;
    background: var(--white);
    transition: var(--transition);
    user-select: none;
}

.faq-q:hover { color: var(--color); }
.faq-q svg { flex-shrink: 0; transition: transform 0.3s; }

.faq-item.open .faq-q { color: var(--color); background: #fdf2f1; }
.faq-item.open .faq-q svg { transform: rotate(180deg); }

.faq-a {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.4s ease;
    background: var(--white);
}

.faq-item.open .faq-a {
    max-height: 500px;
    padding: 0 22px 20px;
}

.faq-a p { font-size: 14px; color: var(--fontcolor-light); line-height: 1.8; }
.faq-a a { color: var(--color); text-decoration: underline; }

/* ===== CONTACT ===== */
.contact-flex { display: flex; gap: 40px; }
.contact-form-wrap { flex: 1; }

.contact-form { background: var(--white); padding: 35px; border-radius: var(--radius); box-shadow: var(--shadow); }

.form-row { display: flex; gap: 20px; margin-bottom: 18px; }
.form-group { flex: 1; }
.form-group.full-width { flex: none; width: 100%; margin-bottom: 0; }

.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 6px;
    color: #1a1a1a;
}

.required { color: var(--color); }

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 14px;
    font-family: inherit;
    transition: var(--transition);
    background: var(--bg-light);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color);
    box-shadow: 0 0 0 3px rgba(192,57,43,0.1);
    background: var(--white);
}

.btn-submit { width: 100%; justify-content: center; margin-top: 10px; padding: 14px; font-size: 15px; }

.form-success { text-align: center; padding: 50px 30px; }
.success-icon {
    width: 70px; height: 70px; background: #27ae60; color: white;
    border-radius: 50%; display: flex; align-items: center; justify-content: center;
    font-size: 32px; margin: 0 auto 20px;
}
.form-success h3 { font-size: 24px; margin-bottom: 10px; }
.form-success p { color: var(--fontcolor-light); }

/* Contact Sidebar */
.contact-info-sidebar { flex: 0 0 350px; display: flex; flex-direction: column; gap: 20px; }

.contact-info-card {
    background: var(--white);
    padding: 25px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.contact-info-card h4 { font-size: 18px; margin-bottom: 18px; padding-bottom: 12px; border-bottom: 2px solid var(--color); }

.ci-item {
    display: flex;
    gap: 14px;
    align-items: flex-start;
    padding: 12px 0;
    border-bottom: 1px solid #f0f0f0;
    font-size: 14px;
    line-height: 1.6;
}

.ci-item:last-child { border-bottom: none; }
.ci-item svg { flex-shrink: 0; margin-top: 3px; color: var(--color); }
.ci-item a { color: var(--color); font-weight: 500; }

.why-list li { padding: 6px 0; font-size: 14px; color: var(--fontcolor-light); }

/* ===== FOOTER ===== */
.foot {
    background: var(--bg-footer);
    color: #ccc;
    position: relative;
}

.top-btn {
    position: absolute;
    top: -25px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--color);
    border-radius: 50%;
    display: none;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 10;
    box-shadow: 0 2px 10px rgba(0,0,0,0.2);
    transition: var(--transition);
}

.top-btn:hover { background: var(--color-dark); transform: translateY(-3px); }

.foot-list { padding: 50px 0 30px; }

.foot-l {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
    gap: 30px;
}

.foot-intro { font-size: 14px; line-height: 1.8; margin-top: 15px; opacity: 0.8; }

.foot-title {
    font-size: 17px;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 18px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--color);
}

.foot-nav .cu li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 6px 0;
    font-size: 14px;
    line-height: 1.6;
}

.foot-nav .cu li svg { flex-shrink: 0; margin-top: 4px; color: var(--color); }

.foot-cate ul li { padding: 5px 0; }
.foot-cate ul li a { font-size: 14px; opacity: 0.8; }
.foot-cate ul li a:hover { color: var(--white); opacity: 1; padding-left: 5px; }

.send-letter p { font-size: 14px; margin-bottom: 12px; opacity: 0.8; }

.nl-form { display: flex; gap: 8px; }
.nl-form input {
    flex: 1;
    padding: 10px 14px;
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 4px;
    background: rgba(255,255,255,0.08);
    color: var(--white);
    font-size: 13px;
    outline: none;
}

.nl-form input::placeholder { color: #999; }
.nl-form input:focus { border-color: var(--color); }
.nl-form .btn-primary { font-size: 13px; padding: 10px 18px; }

.foot-right {
    background: rgba(0,0,0,0.2);
    padding: 18px 0;
    text-align: center;
    font-size: 13px;
    color: #999;
}

/* ===== WHATSAPP FLOAT ===== */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background: #25D366;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(37,211,102,0.4);
    z-index: 999;
    transition: var(--transition);
    animation: pulse 2s infinite;
}

.whatsapp-float:hover { transform: scale(1.1); box-shadow: 0 6px 20px rgba(37,211,102,0.5); }

@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(37,211,102,0.4); }
    70% { box-shadow: 0 0 0 15px rgba(37,211,102,0); }
    100% { box-shadow: 0 0 0 0 rgba(37,211,102,0); }
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1200px) {
    .common-wrapper { max-width: 100%; }
    .hero-content h1 { font-size: 38px; }
    .certs-grid { grid-template-columns: repeat(2, 1fr); }
    .features-grid { grid-template-columns: repeat(2, 1fr); }
    .apps-grid { grid-template-columns: repeat(2, 1fr); }
    .products-grid { grid-template-columns: 1fr; }
    .foot-l { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 992px) {
    .about-flex { flex-direction: column-reverse; }
    .about-img { flex: none; }
    .principle-flex { flex-direction: column; }
    .principle-img { flex: none; }
    .contact-flex { flex-direction: column; }
    .contact-info-sidebar { flex: none; }
    .cases-grid { grid-template-columns: repeat(2, 1fr); }
    .head-contact { display: none; }
}

@media (max-width: 768px) {
    .section-padding { padding: 50px 0; }
    .common-title { font-size: 28px; }
    .hero { min-height: 500px; }
    .hero-content h1 { font-size: 28px; }
    .hero-content > p { font-size: 15px; }
    .hero-stats { gap: 15px; }
    .hero-stat strong { font-size: 22px; }

    /* Mobile Nav */
    .nav-btn { display: flex; }

    .head-nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: var(--white);
        padding: 80px 20px 30px;
        box-shadow: -5px 0 20px rgba(0,0,0,0.1);
        transition: right 0.3s ease;
        z-index: 1000;
        overflow-y: auto;
    }

    .head-nav.active { right: 0; }

    .head-nav ul { flex-direction: column; gap: 2px; }
    .head-nav a { padding: 12px 15px; font-size: 15px; border-radius: 6px; }

    body.nav-open::after {
        content: '';
        position: fixed;
        inset: 0;
        background: rgba(0,0,0,0.4);
        z-index: 999;
    }

    .certs-grid { grid-template-columns: 1fr; }
    .features-grid { grid-template-columns: 1fr; }
    .apps-grid { grid-template-columns: 1fr; }
    .cases-grid { grid-template-columns: 1fr; }
    .product-card { flex-direction: column; }
    .product-img { flex: none; height: 220px; }
    .foot-l { grid-template-columns: 1fr; }
    .form-row { flex-direction: column; }
    .hero-btns { flex-direction: column; align-items: center; }
    .contact-form { padding: 20px; }
}

@media (max-width: 480px) {
    .hero-content h1 { font-size: 24px; }
    .hero { min-height: 420px; }
    .hero-stats { flex-direction: column; gap: 12px; }
    .common-title { font-size: 24px; }
    .head-wrapper { height: 60px; }
    .logo-text { font-size: 18px; }
    .top-left { font-size: 12px; }
    .whatsapp-float { width: 50px; height: 50px; bottom: 20px; right: 20px; }
}