/* ============================================
   GASIFY GAUTENG - Professional Gas Installers
   Design matched to reference (Tailwind-based)
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Oswald:wght@400;500;600;700&display=swap');

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

:root {
    --brand-dark: #0f2a3d;
    --brand-medium: #1a3a4a;
    --brand-accent: #f4c430;
    --brand-light: #f5f5f5;
    --white: #ffffff;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --text: #333333;
    --radius: 0.5rem;
    --shadow-sm: 0 1px 2px 0 rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -2px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -4px rgba(0,0,0,0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1), 0 8px 10px -6px rgba(0,0,0,0.1);
    --transition: all 0.3s ease;
}

html { scroll-behavior: smooth; scroll-padding-top: 80px; }

body {
    font-family: 'Inter', sans-serif;
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    background: var(--brand-light);
}

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

h1, h2, h3, h4, h5, h6 { font-family: 'Oswald', sans-serif; line-height: 1.2; }

.container { max-width: 1280px; margin: 0 auto; padding: 0 24px; }
.container-narrow { max-width: 900px; margin: 0 auto; padding: 0 24px; }

/* ============ TOP BAR (hidden — reference has trust bar below hero instead) ============ */
.top-bar { display: none; }

/* ============ NAVBAR ============ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 50;
    transition: all 0.3s ease;
    background: transparent;
    padding: 16px 0;
}
.navbar.scrolled {
    background: var(--white);
    box-shadow: var(--shadow-lg);
    padding: 10px 0;
}
.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.nav-logo {
    display: flex;
    align-items: center;
    gap: 8px;
}
.logo-icon { font-size: 1.5rem; }
.logo-text {
    font-family: 'Oswald', sans-serif;
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--white);
    transition: color 0.3s ease;
}
.navbar.scrolled .logo-text { color: var(--brand-dark); }

.nav-links {
    display: flex;
    align-items: center;
    gap: 24px;
}
.nav-links a {
    font-size: 0.875rem;
    font-weight: 500;
    color: rgba(255,255,255,0.9);
    transition: color 0.3s ease;
}
.nav-links a:hover { color: var(--white); }
.nav-links a.active { color: var(--brand-accent); }

.navbar.scrolled .nav-links a { color: var(--gray-700); }
.navbar.scrolled .nav-links a:hover { color: var(--brand-dark); }
.navbar.scrolled .nav-links a.active { color: var(--brand-accent); }

.btn-nav {
    background: var(--brand-accent) !important;
    color: var(--brand-dark) !important;
    padding: 8px 16px;
    border-radius: var(--radius);
    font-weight: 600 !important;
    font-size: 0.875rem;
}
.btn-nav:hover { opacity: 0.9; }

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    z-index: 60;
}
.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--white);
    transition: var(--transition);
}
.navbar.scrolled .nav-toggle span { background: var(--brand-dark); }

/* ============ BUTTONS ============ */
.btn {
    display: inline-block;
    padding: 14px 28px;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    border: none;
    transition: all 0.3s ease;
    text-align: center;
    font-family: 'Inter', sans-serif;
}
.btn-primary {
    background: var(--brand-accent);
    color: var(--brand-dark);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(244,196,48,0.3);
}
.btn-outline {
    background: transparent;
    color: var(--white);
    border: 2px solid rgba(255,255,255,0.3);
}
.btn-outline:hover {
    background: rgba(255,255,255,0.1);
    border-color: rgba(255,255,255,0.5);
}
.btn-outline-dark {
    background: transparent;
    color: var(--brand-dark);
    border: 2px solid var(--brand-dark);
}
.btn-outline-dark:hover {
    background: var(--brand-dark);
    color: var(--white);
}
.btn-sm { padding: 10px 20px; font-size: 0.85rem; }
.btn-full { width: 100%; }

/* ============ HERO SECTION ============ */
.hero {
    min-height: 100vh;
    background: var(--brand-dark);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 120px 24px 40px;
    text-align: center;
}
.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: radial-gradient(circle, rgba(255,255,255,0.08) 1px, transparent 1px);
    background-size: 30px 30px;
    pointer-events: none;
}
.hero-bg { display: none; }
.hero-content {
    position: relative;
    z-index: 2;
    max-width: 900px;
}
.hero-badge {
    display: inline-block;
    background: rgba(244,196,48,0.2);
    color: var(--brand-accent);
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 16px;
}
.hero-subitems {
    color: rgba(255,255,255,0.6);
    font-size: 0.85rem;
    margin-bottom: 16px;
}
.hero-title {
    font-family: 'Oswald', sans-serif;
    font-size: 3rem;
    font-weight: 700;
    color: var(--white);
    line-height: 1.1;
    margin-bottom: 16px;
}
.hero-subtitle {
    font-size: 1.1rem;
    color: rgba(255,255,255,0.8);
    font-weight: 500;
    margin-bottom: 12px;
    letter-spacing: 2px;
}
.hero-services {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px;
    color: rgba(255,255,255,0.6);
    font-size: 0.85rem;
    margin-bottom: 24px;
}
.hero-cta {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin-bottom: 40px;
}

/* Hero Image Strip */
.hero-image-strip {
    display: flex;
    gap: 16px;
    overflow-x: auto;
    padding: 16px 0;
    width: 100%;
    justify-content: center;
    position: relative;
    z-index: 2;
    -ms-overflow-style: none;
    scrollbar-width: none;
}
.hero-image-strip::-webkit-scrollbar { display: none; }

.strip-item {
    position: relative;
    flex-shrink: 0;
    width: 128px;
    height: 160px;
    border-radius: 12px;
    overflow: hidden;
    cursor: pointer;
    transition: all 0.5s ease;
}
.strip-item:hover { transform: scale(1.05); }
.strip-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}
.strip-item:hover img { transform: scale(1.1); }
.strip-item span {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 8px;
    background: linear-gradient(transparent, rgba(0,0,0,0.7));
    color: var(--white);
    font-size: 0.7rem;
    font-weight: 600;
    text-align: center;
}
.hero-keywords {
    font-size: 0.65rem;
    color: rgba(255,255,255,0.2);
    text-align: center;
    margin-top: 24px;
    position: relative;
    z-index: 2;
}

/* ============ SECTIONS ============ */
.section { padding: 64px 0; background: var(--white); }
.section-dark { background: var(--brand-dark); color: var(--white); }
.section-dark .section-title { color: var(--white); }
.section-dark .section-subtitle { color: rgba(255,255,255,0.8); }
.section-dark .section-keywords { color: rgba(255,255,255,0.2); }
.section-light { background: var(--brand-light); }

.section-header {
    text-align: center;
    margin-bottom: 48px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}
.section-title {
    font-family: 'Oswald', sans-serif;
    font-size: 1.875rem;
    font-weight: 700;
    color: var(--brand-dark);
    margin-bottom: 16px;
}
.section-subtitle {
    color: var(--gray-600);
    font-size: 1rem;
}
.section-badge {
    display: inline-block;
    background: rgba(244,196,48,0.2);
    color: var(--brand-accent);
    padding: 6px 16px;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 12px;
}
.section-badge.gold { color: var(--brand-accent); }
.section-keywords {
    font-size: 0.65rem;
    color: var(--gray-400);
    text-align: center;
    margin-top: 40px;
}
.text-white { color: var(--white); }
.text-white-80 { color: rgba(255,255,255,0.8); }
.text-white-40 { color: rgba(255,255,255,0.4); }
.mb-4 { margin-bottom: 1rem; }
.mb-6 { margin-bottom: 1.5rem; }
.mt-12 { margin-top: 3rem; }

/* ============ GRIDS ============ */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.items-center { align-items: center; }

/* ============ ABOUT ============ */
.about-content {
    max-width: 56rem;
    margin: 0 auto;
    text-align: center;
}
.about-text p { font-size: 1.05rem; color: var(--gray-600); margin-bottom: 16px; line-height: 1.7; }
.about-text strong { color: var(--brand-dark); }
.trust-badges-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; }
.trust-badges-row.center { justify-content: center; }
.trust-badges-row.small .trust-badge { font-size: 0.7rem; padding: 4px 10px; }
.trust-badge {
    background: var(--brand-dark);
    color: var(--brand-accent);
    padding: 6px 14px;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
    border: 1px solid rgba(244,196,48,0.3);
}
.about-content .trust-badges-row { justify-content: center; }

/* ============ FEATURE LIST ============ */
.feature-list { list-style: none; margin: 20px 0 24px; }
.feature-list li { padding: 8px 0 8px 28px; position: relative; color: var(--gray-600); }
.feature-list li::before { content: '\2713'; position: absolute; left: 0; color: var(--brand-accent); font-weight: 700; }
.feature-list.white li,
.section-dark .feature-list li,
#loadshedding .feature-list li,
#paloma .feature-list li { color: rgba(255,255,255,0.8); }

/* ============ LOAD SHEDDING ============ */
#loadshedding {
    background: linear-gradient(to bottom right, var(--brand-dark), var(--brand-medium));
}
#loadshedding .section-title { color: var(--white); }
#loadshedding .section-keywords { color: rgba(255,255,255,0.2); }
.loadshed-text { color: rgba(255,255,255,0.8); }
.loadshed-text p { color: rgba(255,255,255,0.8); }

.cost-comparison {
    background: rgba(255,255,255,0.1);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    border-radius: 1rem;
    padding: 32px;
    border: 1px solid rgba(255,255,255,0.2);
}
.cost-comparison h3 { color: var(--white); font-size: 1.3rem; margin-bottom: 16px; }
.cost-table { display: flex; flex-direction: column; gap: 8px; }
.cost-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 16px;
    background: rgba(255,255,255,0.05);
    border-radius: 8px;
    color: rgba(255,255,255,0.8);
    font-size: 0.9rem;
}
.cost-val { font-weight: 700; }
.cost-val.red { color: #f87171; }
.cost-val.green { color: #4ade80; }
.savings-note { text-align: center; margin-top: 16px; color: var(--brand-accent); font-weight: 700; font-size: 1.1rem; }

/* ============ GEYSER CARDS ============ */
.geyser-cards { display: flex; flex-direction: column; gap: 16px; }
.geyser-card {
    background: rgba(255,255,255,0.1);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 12px;
    padding: 24px;
    transition: var(--transition);
}
.geyser-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-xl); }
.geyser-card.light {
    background: var(--brand-light);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    border: none;
    color: var(--text);
}
.geyser-card.light:hover { box-shadow: var(--shadow-xl); }
.geyser-card h4 { font-family: 'Oswald', sans-serif; font-size: 1.2rem; margin-bottom: 4px; color: var(--brand-accent); }
.geyser-card.light h4 { color: var(--brand-dark); }
.geyser-card .capacity { font-size: 1.5rem; font-weight: 700; color: var(--white); margin-bottom: 12px; }
.geyser-card.light .capacity { color: var(--brand-dark); }
.geyser-card ul { list-style: none; margin-bottom: 12px; }
.geyser-card ul li { font-size: 0.85rem; padding: 3px 0; color: rgba(255,255,255,0.7); }
.geyser-card.light ul li { color: var(--gray-600); }
.geyser-card .specs { font-size: 0.8rem; color: rgba(255,255,255,0.5); }
.geyser-card.light .specs { color: var(--gray-500); }

/* ============ PALOMA SECTION ============ */
#paloma {
    background: linear-gradient(to bottom right, var(--brand-dark), var(--brand-medium));
}
#paloma .section-title { color: var(--white); }
#paloma .section-keywords { color: rgba(255,255,255,0.2); }

/* ============ SECTION IMAGE ============ */
.section-image { border-radius: 16px; width: 100%; }
.rounded { border-radius: 16px; }
.image-badge {
    display: inline-block;
    background: var(--brand-accent);
    color: var(--brand-dark);
    padding: 8px 20px;
    border-radius: 8px;
    font-weight: 700;
    font-size: 0.85rem;
    margin-top: 12px;
}
.order-1-md { order: 1; }
.order-2-md { order: 2; }

/* ============ SERVICES ============ */
.services-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 24px; }
.service-card {
    background: var(--white);
    border-radius: 1rem;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}
.service-card:hover { transform: translateY(-8px) scale(1.02); box-shadow: var(--shadow-xl); }
.card-image-wrap {
    overflow: hidden;
    height: 192px;
    position: relative;
}
.card-image-wrap::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 50%;
    background: linear-gradient(transparent, rgba(0,0,0,0.4));
    pointer-events: none;
}
.card-image { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.service-card:hover .card-image { transform: scale(1.1); }
.card-body { padding: 24px; }
.card-body h3 { font-size: 1.2rem; color: var(--brand-dark); margin-bottom: 8px; }
.card-badge { color: var(--brand-accent); font-weight: 600; font-size: 0.85rem; margin-bottom: 12px; }
.card-body p { color: var(--gray-600); font-size: 0.9rem; margin-bottom: 16px; line-height: 1.6; }
.price { color: var(--brand-dark); font-weight: 700; font-size: 1.1rem; }

/* ============ AREAS ============ */
.areas-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
    margin-bottom: 24px;
}
.area-tag {
    display: block;
    padding: 16px;
    background: rgba(255,255,255,0.1);
    border-radius: 8px;
    font-size: 0.85rem;
    color: var(--white);
    font-weight: 500;
    transition: var(--transition);
    text-align: center;
}
.area-tag:hover {
    background: var(--brand-accent);
    color: var(--brand-dark);
}
.areas-note { text-align: center; color: rgba(255,255,255,0.7); margin-bottom: 24px; }
.areas-note a { color: var(--brand-accent); font-weight: 600; }

/* ============ REGULATIONS ============ */
.regs-content { max-width: 900px; margin: 0 auto; }
.regs-content > h3 { font-size: 1.5rem; color: var(--brand-dark); margin-bottom: 12px; }
.regs-content > p { color: var(--gray-600); margin-bottom: 24px; }
.regs-grid { display: grid; grid-template-columns: 1fr; gap: 16px; margin-bottom: 32px; }
.reg-card {
    background: var(--white);
    border-radius: 12px;
    padding: 24px;
    border-left: 4px solid var(--brand-accent);
    box-shadow: var(--shadow-sm);
}
.reg-card:nth-child(2) { border-left-color: #22c55e; }
.reg-card:nth-child(3) { border-left-color: #3b82f6; }
.reg-card h4 { font-size: 1.1rem; color: var(--brand-dark); margin-bottom: 8px; }
.reg-card p { color: var(--gray-600); font-size: 0.9rem; }
.reg-card ul { list-style: disc; padding-left: 20px; margin-top: 8px; color: var(--gray-600); font-size: 0.9rem; }
.regs-cta { text-align: center; background: var(--brand-dark); color: var(--white); padding: 32px; border-radius: 16px; }
.regs-cta h3 { color: var(--white); margin-bottom: 12px; }
.regs-cta p { color: rgba(255,255,255,0.8); margin-bottom: 20px; }
.cta-row { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }

/* ============ FEATURE CARDS (WHY CHOOSE) ============ */
.feature-card {
    text-align: center;
    padding: 24px;
    border-radius: 1rem;
    background: var(--brand-light);
    transition: var(--transition);
}
.feature-card:hover { background: var(--white); box-shadow: var(--shadow-xl); }
.feature-icon {
    width: 64px; height: 64px;
    margin: 0 auto 20px;
    background: var(--brand-dark);
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.5rem;
}
.feature-card h3 { font-size: 1.15rem; color: var(--brand-dark); margin-bottom: 12px; }
.feature-card p { color: var(--gray-600); font-size: 0.9rem; }

/* ============ TESTIMONIALS ============ */
.testimonial-card {
    background: var(--brand-light);
    padding: 24px;
    border-radius: 1rem;
    transition: var(--transition);
}
.testimonial-card:hover { box-shadow: var(--shadow-lg); }
.stars { margin-bottom: 12px; font-size: 1.1rem; }
.testimonial-text { color: var(--gray-700); font-style: italic; margin-bottom: 16px; font-size: 0.95rem; line-height: 1.6; }
.testimonial-author { color: var(--brand-dark); font-weight: 600; }
.testimonial-location { color: var(--gray-500); font-size: 0.85rem; }

/* ============ FAQ ============ */
.faq-list { display: flex; flex-direction: column; gap: 12px; }
.faq-item { background: var(--white); border-radius: 12px; overflow: hidden; box-shadow: var(--shadow-sm); }
.faq-question {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 24px;
    background: none;
    border: none;
    cursor: pointer;
    font-family: 'Oswald', sans-serif;
    font-size: 1rem;
    font-weight: 600;
    color: var(--brand-dark);
    text-align: left;
    transition: var(--transition);
}
.faq-question:hover { color: var(--brand-accent); }
.faq-icon { font-size: 1.3rem; transition: var(--transition); font-weight: 300; }
.faq-item.active .faq-icon { transform: rotate(45deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.3s ease, padding 0.3s ease; }
.faq-item.active .faq-answer { max-height: 500px; }
.faq-answer p { padding: 0 24px 18px; color: var(--gray-600); font-size: 0.95rem; line-height: 1.7; }
.faq-cta { text-align: center; margin-top: 40px; }
.faq-cta p { color: var(--gray-600); margin-bottom: 16px; }

/* ============ CONTACT ============ */
.contact-info { color: var(--gray-600); }
.contact-block { margin-bottom: 24px; }
.contact-block h4 {
    color: var(--brand-dark);
    font-family: 'Oswald', sans-serif;
    font-size: 1.1rem;
    margin-bottom: 8px;
}
.contact-link { color: var(--brand-dark); font-size: 1.2rem; font-weight: 600; }
.contact-link:hover { color: var(--brand-accent); }
.contact-note { font-size: 0.85rem; color: var(--gray-500); margin-top: 4px; }
.contact-block p { font-size: 0.9rem; line-height: 1.6; }
.contact-form-wrap {
    background: var(--white);
    border: none;
    border-radius: 1rem;
    padding: 32px;
    box-shadow: var(--shadow-lg);
}
.contact-form { display: flex; flex-direction: column; gap: 12px; }
.contact-form input,
.contact-form select,
.contact-form textarea {
    width: 100%;
    padding: 12px 16px;
    border-radius: 8px;
    border: 1px solid var(--gray-200);
    background: var(--white);
    color: var(--text);
    font-family: 'Inter', sans-serif;
    font-size: 0.9rem;
    transition: var(--transition);
}
.contact-form input::placeholder,
.contact-form textarea::placeholder { color: var(--gray-400); }
.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--brand-accent);
    box-shadow: 0 0 0 3px rgba(244,196,48,0.15);
}
.contact-form select { appearance: none; }
.contact-form select option { background: var(--white); color: var(--text); }
.contact-form-wrap h3 { color: var(--brand-dark); }

/* ============ FOOTER ============ */
.footer {
    background: var(--brand-dark);
    color: rgba(255,255,255,0.7);
    padding: 60px 0 20px;
    border-top: 1px solid rgba(255,255,255,0.1);
}
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer-logo { display: flex; align-items: center; gap: 8px; margin-bottom: 12px; }
.footer-logo span { font-family: 'Oswald', sans-serif; font-weight: 700; font-size: 1.2rem; color: var(--white); }
.footer-brand p { font-size: 0.85rem; line-height: 1.6; margin-bottom: 16px; }
.footer-links h4, .footer-contact h4 { color: var(--white); font-family: 'Oswald', sans-serif; font-size: 1.1rem; margin-bottom: 16px; }
.footer-links ul { list-style: none; }
.footer-links li { margin-bottom: 8px; }
.footer-links a { font-size: 0.85rem; color: rgba(255,255,255,0.7); }
.footer-links a:hover { color: var(--brand-accent); }
.footer-contact p { font-size: 0.85rem; margin-bottom: 8px; }
.footer-contact a { color: var(--brand-accent); }
.footer-areas { font-size: 0.8rem; margin-top: 12px; line-height: 1.6; }
.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 24px;
    border-top: 1px solid rgba(255,255,255,0.1);
    font-size: 0.8rem;
}
.back-to-top {
    background: var(--brand-accent);
    color: var(--brand-dark);
    border: none;
    padding: 8px 16px;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.8rem;
    transition: var(--transition);
}
.back-to-top:hover { background: #e6b020; }
.footer-keywords { font-size: 0.6rem; color: rgba(255,255,255,0.2); text-align: center; margin-top: 24px; }

/* ============ WHATSAPP FLOAT ============ */
.whatsapp-float {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 100;
    background: #25d366;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(37,211,102,0.4);
    transition: var(--transition);
    animation: float 3s ease-in-out infinite;
}
.whatsapp-float:hover { transform: scale(1.1); box-shadow: 0 6px 20px rgba(37,211,102,0.5); }

/* ============ ANIMATIONS ============ */
@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}
@keyframes pulse-glow {
    0%, 100% { box-shadow: 0 0 0 0 rgba(244,196,48,0.4); }
    50% { box-shadow: 0 0 20px 5px rgba(244,196,48,0.2); }
}
.section-fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}
.section-fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ============ SCROLLBAR ============ */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--brand-light); }
::-webkit-scrollbar-thumb { background: var(--brand-dark); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--brand-medium); }

/* ============ RESPONSIVE ============ */
@media (min-width: 768px) {
    .strip-item { width: 160px; height: 192px; }
    .section-title { font-size: 2.25rem; }
    .areas-grid { grid-template-columns: repeat(4, 1fr); }
}
@media (min-width: 1024px) {
    .section { padding: 96px 0; }
    .hero-title { font-size: 3.75rem; }
    .section-title { font-size: 3rem; }
    .areas-grid { grid-template-columns: repeat(4, 1fr); }
}
@media (min-width: 1280px) {
    .areas-grid { grid-template-columns: repeat(6, 1fr); }
}

@media (max-width: 1024px) {
    .grid-2, .grid-3, .footer-grid { grid-template-columns: 1fr; }
    .services-grid { grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: var(--brand-dark);
        flex-direction: column;
        padding: 80px 24px 24px;
        z-index: 40;
    }
    .nav-links.active { display: flex; }
    .nav-links a {
        color: rgba(255,255,255,0.9) !important;
        font-size: 1.1rem;
        padding: 8px 0;
    }
    .nav-toggle { display: flex; }
    .hero-title { font-size: 2rem; }
    .hero { padding: 100px 24px 40px; min-height: auto; }
    .section-title { font-size: 1.875rem; }
    .hero-image-strip {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 8px;
        overflow: visible;
        justify-content: initial;
    }
    .strip-item { width: 100%; height: 100px; }
    .grid-3 { grid-template-columns: 1fr; }
    .order-1-md { order: 2; }
    .order-2-md { order: 1; }
    .footer-grid { gap: 24px; }
    .areas-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 480px) {
    .hero-title { font-size: 1.7rem; }
    .section-title { font-size: 1.6rem; }
    .btn { padding: 12px 20px; font-size: 0.9rem; }
    .hero-cta { flex-direction: column; align-items: center; }
    .strip-item { height: 80px; }
}