/* ===================================
   Bioanthem Devices - Modern Medical Manufacturer Website
   CSS Stylesheet
   =================================== */

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

/* ===================================
   1. RESET & BASE STYLES
   =================================== */

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

:root {
    /* Brand Colors */
    --color-primary: #4A9B8E; /* Teal */
    --color-primary-dark: #3A7B6E;
    --color-primary-light: #6BB3A6;
    --color-secondary: #2C5F6F; /* Deep blue-teal */
    --color-accent: #75CBBA; /* Light teal */
    
    /* Neutral Colors */
    --color-white: #FFFFFF;
    --color-light-bg: #F8FAFB;
    --color-grey-light: #E8EDEF;
    --color-grey: #8B9BA5;
    --color-grey-dark: #4A5B66;
    --color-dark: #1F2D35;
    --color-black: #0F1419;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    --font-heading: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2.5rem;
    --spacing-xl: 4rem;
    --spacing-xxl: 6rem;
    
    /* Layout */
    --max-width: 1200px;
    --border-radius: 8px;
    --border-radius-lg: 16px;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 12px 24px rgba(0, 0, 0, 0.12);
    
    /* Transitions */
    --transition: all 0.3s ease;
}

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

body {
    font-family: var(--font-primary);
    line-height: 1.7;
    color: var(--color-dark);
    background: var(--color-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ===================================
   2. TYPOGRAPHY
   =================================== */

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.3;
    color: var(--color-black);
    margin-bottom: var(--spacing-sm);
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    letter-spacing: -0.02em;
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    letter-spacing: -0.01em;
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2rem);
}

h4 {
    font-size: 1.25rem;
}

p {
    margin-bottom: var(--spacing-sm);
    color: var(--color-grey-dark);
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--color-primary-dark);
}

strong {
    font-weight: 600;
}

/* ===================================
   3. LAYOUT
   =================================== */

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

section {
    padding: var(--spacing-xxl) 0;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--spacing-xl);
}

.section-header h2 {
    margin-bottom: var(--spacing-sm);
}

.section-header p {
    font-size: 1.125rem;
    color: var(--color-grey);
}

/* ===================================
   4. BUTTONS
   =================================== */

.btn-primary,
.btn-secondary,
.btn-call,
.btn-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.875rem 1.75rem;
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    border: 2px solid transparent;
    white-space: nowrap;
}

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

.btn-primary:hover {
    background: var(--color-primary-dark);
    color: var(--color-white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: var(--color-white);
    color: var(--color-primary);
    border-color: var(--color-primary);
}

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

.btn-call {
    background: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
    padding: 0.75rem 1.5rem;
}

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

.btn-large {
    padding: 1.125rem 2.5rem;
    font-size: 1.125rem;
}

.btn-link {
    padding: 0;
    color: var(--color-primary);
    font-weight: 600;
    border: none;
    background: none;
}

.btn-link:hover {
    color: var(--color-primary-dark);
    gap: 0.75rem;
}

/* ===================================
   5. HEADER & NAVIGATION
   =================================== */

.header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--color-white);
    box-shadow: var(--shadow-sm);
    transition: box-shadow 0.3s ease;
}

.header.scrolled {
    box-shadow: 0 2px 16px rgba(0, 0, 0, 0.1);
}

.navbar {
    padding: var(--spacing-sm) 0;
}

.nav-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-md);
}

.logo img {
    height: 50px;
    width: auto;
    display: block;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
    align-items: center;
    margin: 0;
    padding: 0;
}

.nav-menu li {
    position: relative;
    display: flex;
    align-items: center;
}

.nav-menu a {
    color: var(--color-dark);
    font-weight: 500;
    padding: 0.5rem 0;
    transition: var(--transition);
    display: flex;
    align-items: center;
    height: 100%;
    white-space: nowrap;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--color-primary);
}

/* Dropdown Menu */
.dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--color-white);
    box-shadow: var(--shadow-lg);
    border-radius: var(--border-radius);
    min-width: 250px;
    padding: var(--spacing-xs);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition);
    list-style: none;
    margin: 0;
}

.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu li {
    margin: 0;
    display: block;
}

.dropdown-menu a {
    display: block;
    padding: 0.75rem var(--spacing-sm);
    border-radius: var(--border-radius);
    white-space: normal;
}

.dropdown-menu a:hover {
    background: var(--color-light-bg);
}

/* Mobile Menu */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
    position: relative;
    z-index: 1001;
}

.mobile-menu-toggle span {
    width: 26px;
    height: 3px;
    background: var(--color-dark);
    border-radius: 2px;
    transition: var(--transition);
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}

.nav-cta {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
}

/* ===================================
   6. HERO SECTION
   =================================== */

.hero {
    position: relative;
    min-height: 600px;
    display: flex;
    align-items: center;
    background: var(--color-primary);
    overflow: hidden;
}

.hero-background {
    position: absolute;
    inset: 0;
    z-index: 1;
}

.hero-video {
    position: absolute;
    top: 50%;
    left: 50%;
    min-width: 100%;
    min-height: 100%;
    width: auto;
    height: auto;
    transform: translate(-50%, -50%);
    object-fit: cover;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(74, 155, 142, 0.85) 0%, rgba(44, 95, 111, 0.85) 100%);
    z-index: 2;
}

.hero-image-placeholder {
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    font-size: 1.125rem;
    backdrop-filter: blur(2px);
}

.hero .container {
    position: relative;
    z-index: 3;
}

.hero-content {
    max-width: 700px;
    color: var(--color-white);
    padding: var(--spacing-xl) 0;
}

.hero h1 {
    color: var(--color-white);
    margin-bottom: var(--spacing-md);
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-lg);
    opacity: 0.95;
    line-height: 1.6;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.hero-cta {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    margin-bottom: var(--spacing-lg);
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
}

.stat-item {
    text-align: center;
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.15);
    border-radius: var(--border-radius);
    backdrop-filter: blur(10px);
}

.stat-item h3 {
    color: var(--color-white);
    font-size: 1.5rem;
    margin-bottom: 0.25rem;
}

.stat-item p {
    color: var(--color-white);
    opacity: 0.9;
    margin: 0;
    font-size: 0.875rem;
}

/* ===================================
   7. PRODUCT CATEGORIES
   =================================== */

.product-categories {
    background: var(--color-light-bg);
}

.category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

/* 5-column grid for products page */
.category-grid-5 {
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

@media (min-width: 1200px) {
    .category-grid-5 {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 1400px) {
    .category-grid-5 {
        grid-template-columns: repeat(5, 1fr);
    }
}

.category-card {
    background: var(--color-white);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.category-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.category-image {
    width: 100%;
    overflow: hidden;
    background: var(--color-grey-light);
}

.category-image img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    display: block;
    transition: transform 0.4s ease;
}

.category-card:hover .category-image img {
    transform: scale(1.05);
}

.image-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-primary) 100%);
    color: var(--color-white);
    font-size: 0.875rem;
    text-align: center;
    padding: var(--spacing-sm);
}

.category-content {
    padding: var(--spacing-lg);
    flex: 1;
    display: flex;
    flex-direction: column;
}

.category-icon {
    width: 56px;
    height: 56px;
    background: var(--color-primary);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
}

.category-icon svg {
    color: var(--color-white);
}

.category-card h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
}

.category-card p {
    margin-bottom: var(--spacing-md);
    flex: 1;
}

.category-features {
    list-style: none;
    margin-bottom: var(--spacing-md);
    padding: 0;
}

.category-features li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--color-grey-dark);
    font-size: 0.9375rem;
}

.category-features li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: 700;
}

/* ===================================
   8. WHY BIOANTHEM
   =================================== */

.why-bioanthem {
    background: var(--color-white);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.feature-card {
    text-align: center;
    padding: var(--spacing-lg);
    background: var(--color-light-bg);
    border-radius: var(--border-radius-lg);
    transition: var(--transition);
}

.feature-card:hover {
    background: var(--color-white);
    box-shadow: var(--shadow-md);
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

.feature-icon.teal {
    background: linear-gradient(135deg, var(--color-primary-light), var(--color-primary));
    color: var(--color-white);
}

.feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
}

.feature-card p {
    margin: 0;
    font-size: 0.9375rem;
}

/* ===================================
   9. MANUFACTURING FACILITY
   =================================== */

.manufacturing-facility {
    background: var(--color-light-bg);
}

.facility-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.facility-image-large {
    grid-column: 1 / 2;
    grid-row: 1 / 3;
    position: relative;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
}

.facility-image-large img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.facility-images-small {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.facility-image {
    position: relative;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
}

.facility-image img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    display: block;
}

.facility-image .image-placeholder,
.facility-image-large .image-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--color-secondary), var(--color-primary));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
}

.facility-label {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--spacing-sm);
    background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
    color: var(--color-white);
    font-weight: 600;
}

.facility-cta {
    text-align: center;
}

/* ===================================
   10. INDUSTRIES SERVED
   =================================== */

.industries-served {
    background: var(--color-white);
}

.industries-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--spacing-lg);
}

.industry-card {
    text-align: center;
    padding: var(--spacing-lg);
    background: var(--color-light-bg);
    border-radius: var(--border-radius-lg);
    transition: var(--transition);
}

.industry-card:hover {
    background: var(--color-primary);
    color: var(--color-white);
    transform: translateY(-4px);
}

.industry-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--color-white);
    transition: var(--transition);
}

.industry-card:hover .industry-icon {
    background: rgba(255, 255, 255, 0.2);
}

.industry-icon svg {
    color: var(--color-primary);
    transition: var(--transition);
}

.industry-card:hover .industry-icon svg {
    color: var(--color-white);
}

.industry-card h3 {
    margin-bottom: var(--spacing-xs);
    transition: var(--transition);
}

.industry-card:hover h3 {
    color: var(--color-white);
}

.industry-card p {
    margin: 0;
    font-size: 0.9375rem;
    transition: var(--transition);
}

.industry-card:hover p {
    color: rgba(255, 255, 255, 0.9);
}

/* ===================================
   11. CTA SECTION WITH FORM
   =================================== */

.cta-section {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    color: var(--color-white);
}

.cta-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: start;
}

.cta-text h2 {
    color: var(--color-white);
    margin-bottom: var(--spacing-md);
}

.cta-text > p {
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-lg);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.contact-item {
    display: flex;
    gap: var(--spacing-sm);
    align-items: start;
}

.contact-item svg {
    flex-shrink: 0;
    margin-top: 4px;
}

.contact-item strong {
    display: block;
    margin-bottom: 0.25rem;
    font-size: 1rem;
}

.contact-item a {
    color: var(--color-white);
    text-decoration: none;
}

.contact-item a:hover {
    text-decoration: underline;
}

.contact-item address {
    font-style: normal;
    line-height: 1.6;
}

/* Quote Form */
.quote-form {
    background: var(--color-white);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
}

.quote-form h3 {
    color: var(--color-dark);
    margin-bottom: var(--spacing-md);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--color-dark);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.875rem;
    border: 2px solid var(--color-grey-light);
    border-radius: var(--border-radius);
    font-family: var(--font-primary);
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-sm);
}

.contact-form button {
    width: 100%;
    border: none;
}

/* ===================================
   12. FOOTER
   =================================== */

.footer {
    background: var(--color-dark);
    color: var(--color-grey-light);
    padding: var(--spacing-xxl) 0 var(--spacing-lg);
}

.footer-main {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-logo {
    margin-bottom: var(--spacing-md);
}

.footer-tagline {
    font-size: 1.125rem;
    font-style: italic;
    color: var(--color-primary-light);
    margin-bottom: var(--spacing-sm);
}

.footer-description {
    color: var(--color-grey);
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
}

.social-links {
    display: flex;
    gap: var(--spacing-sm);
}

.social-links a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: var(--color-white);
    transition: var(--transition);
}

.social-links a:hover {
    background: var(--color-primary);
    transform: translateY(-2px);
}

.footer-column h4 {
    color: var(--color-white);
    font-size: 1rem;
    margin-bottom: var(--spacing-md);
}

.footer-column ul {
    list-style: none;
}

.footer-column ul li {
    margin-bottom: 0.75rem;
}

.footer-column ul a {
    color: var(--color-grey);
    transition: var(--transition);
}

.footer-column ul a:hover {
    color: var(--color-primary-light);
    padding-left: 4px;
}

.contact-list li {
    display: flex;
    gap: 0.75rem;
    align-items: start;
    margin-bottom: var(--spacing-sm);
}

.contact-list svg {
    flex-shrink: 0;
    margin-top: 2px;
    color: var(--color-primary-light);
}

.footer-bottom {
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.footer-bottom p {
    color: var(--color-grey);
    margin: 0;
}

.footer-legal {
    display: flex;
    gap: var(--spacing-md);
    list-style: none;
}

.footer-legal a {
    color: var(--color-grey);
}

.footer-legal a:hover {
    color: var(--color-primary-light);
}

/* ===================================
   13. FLOATING WHATSAPP BUTTON
   =================================== */

.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: var(--shadow-lg);
    z-index: 999;
    transition: var(--transition);
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 8px 24px rgba(37, 211, 102, 0.4);
}

/* ===================================
   14. RESPONSIVE DESIGN
   =================================== */

@media (max-width: 1024px) {
    .nav-menu {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: var(--color-white);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: var(--spacing-md);
        z-index: 1000;
        padding: var(--spacing-xl);
    }

    .nav-menu.active {
        display: flex;
    }

    .nav-menu a {
        font-size: 1.25rem;
        padding: 0.75rem 0;
    }

    .dropdown {
        flex-direction: column;
    }

    .dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        min-width: unset;
        text-align: center;
        padding: 0;
        margin-top: var(--spacing-xs);
    }

    .dropdown-menu a {
        font-size: 1rem;
        color: var(--color-grey-dark);
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .nav-cta {
        display: none;
    }

    .cta-content {
        grid-template-columns: 1fr;
    }

    .footer-main {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-lg);
    }

    .facility-grid {
        grid-template-columns: 1fr;
    }

    .facility-image-large {
        grid-column: 1;
        grid-row: auto;
    }

    .facility-image-large img {
        height: 300px;
    }

    .facility-images-small {
        flex-direction: row;
    }

    .facility-image {
        flex: 1;
    }

    .hero-video {
        object-fit: cover;
    }
}

@media (max-width: 768px) {
    :root {
        --spacing-xl: 3rem;
        --spacing-xxl: 4rem;
    }

    section {
        padding: var(--spacing-xl) 0;
    }

    .hero {
        min-height: 500px;
    }

    .hero-video {
        min-width: auto;
        width: 100%;
        height: 100%;
        object-fit: cover;
    }

    .hero-overlay {
        background: linear-gradient(135deg, rgba(74, 155, 142, 0.9) 0%, rgba(44, 95, 111, 0.9) 100%);
    }

    .hero-cta {
        flex-direction: column;
    }

    .hero-cta .btn-primary,
    .hero-cta .btn-secondary {
        width: 100%;
        text-align: center;
    }

    .hero-stats {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--spacing-sm);
    }

    .stat-item {
        padding: var(--spacing-sm);
    }

    .stat-item h3 {
        font-size: 1.125rem;
    }

    .category-grid,
    .features-grid,
    .industries-grid {
        grid-template-columns: 1fr;
    }

    .category-card {
        flex-direction: row;
        align-items: stretch;
    }

    .category-image {
        width: 200px;
        min-width: 200px;
    }

    .category-image img {
        height: 100%;
        min-height: 200px;
    }

    .category-content {
        padding: var(--spacing-md);
    }

    .category-icon {
        width: 44px;
        height: 44px;
        margin-bottom: var(--spacing-sm);
    }

    .category-icon svg {
        width: 24px;
        height: 24px;
    }

    .category-card h3 {
        font-size: 1.25rem;
    }

    .facility-images-small {
        flex-direction: column;
    }

    .facility-image-large img {
        height: 250px;
    }

    .facility-image img {
        height: 180px;
    }

    .footer-main {
        grid-template-columns: 1fr;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }

    .form-row {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .whatsapp-float {
        width: 50px;
        height: 50px;
        bottom: 20px;
        right: 20px;
    }

    .whatsapp-float svg {
        width: 28px;
        height: 28px;
    }

    .hero {
        min-height: 450px;
    }

    .hero-video {
        transform: translate(-50%, -50%) scale(1.1);
    }

    .hero h1 {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .hero-stats {
        grid-template-columns: 1fr;
    }

    .category-card {
        flex-direction: column;
    }

    .category-image {
        width: 100%;
        min-width: unset;
    }

    .category-image img {
        height: 200px;
        min-height: unset;
    }

    .facility-image-large img {
        height: 200px;
    }

    .facility-image img {
        height: 160px;
    }

    .section-header h2 {
        font-size: 1.75rem;
    }

    .quote-form {
        padding: var(--spacing-md);
    }
}

/* ===================================
   15. FORM STATUS & VALIDATION
   =================================== */

.field-error {
    display: block;
    color: #E74C3C;
    font-size: 0.8125rem;
    margin-top: 0.25rem;
    min-height: 0;
}

.form-group input.error,
.form-group textarea.error {
    border-color: #E74C3C;
}

.form-status {
    padding: 1rem 1.25rem;
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-md);
    font-size: 0.9375rem;
    line-height: 1.6;
}

.form-status.success {
    background: #E8F5E9;
    color: #2E7D32;
    border: 1px solid #A5D6A7;
}

.form-status.error {
    background: #FFEBEE;
    color: #C62828;
    border: 1px solid #EF9A9A;
}

.btn-loading {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.spinner {
    animation: spin 1s linear infinite;
}

.btn-primary:disabled,
.form-submit:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

/* ===================================
   16. UTILITY CLASSES
   =================================== */

.text-center {
    text-align: center;
}

.text-primary {
    color: var(--color-primary);
}

.bg-light {
    background: var(--color-light-bg);
}

.mt-0 { margin-top: 0; }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }

.mb-0 { margin-bottom: 0; }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }

/* Print Styles */
@media print {
    .header,
    .hero,
    .whatsapp-float,
    .footer {
        display: none;
    }
}