/* RJN Chemicals - Modern Clean Website */
/* Design: Fresh, sustainable, professional */

:root {
    --primary: #0d9488;
    --primary-dark: #0f766e;
    --primary-light: #5eead4;
    --secondary: #0369a1;
    --accent: #f0fdf4;
    --dark: #0f172a;
    --text: #1e293b;
    --text-light: #64748b;
    --background: #ffffff;
    --surface: #f8fafc;
    --border: #e2e8f0;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --radius: 12px;
    --radius-lg: 24px;
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: var(--text);
    background: var(--background);
    line-height: 1.6;
}

h1, h2, h3, h4 {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
    line-height: 1.2;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid var(--border);
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    color: var(--dark);
}

.logo-icon {
    font-size: 28px;
}

.logo-text {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
    font-size: 20px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
    list-style: none;
}

.nav-links a {
    text-decoration: none;
    color: var(--text);
    font-weight: 500;
    transition: var(--transition);
}

.nav-links a:hover {
    color: var(--primary);
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--dark);
    transition: var(--transition);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    font-family: 'Inter', sans-serif;
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--radius);
    border: none;
    cursor: pointer;
    transition: var(--transition);
}

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

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

.btn-secondary {
    background: var(--surface);
    color: var(--text);
    border: 1px solid var(--border);
}

.btn-secondary:hover {
    background: var(--border);
}

.btn-outline {
    background: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
}

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

.btn-nav {
    padding: 10px 20px;
}

.btn-large {
    padding: 16px 32px;
    font-size: 16px;
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 0 80px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, #f0fdf4 0%, #e0f2fe 50%, #f0f9ff 100%);
    z-index: -1;
}

.hero-bg::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 80%;
    height: 150%;
    background: radial-gradient(circle, rgba(13, 148, 136, 0.1) 0%, transparent 70%);
    animation: float 20s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(-5%, 5%); }
}

.hero-content {
    max-width: 720px;
}

.badge {
    display: inline-block;
    padding: 8px 16px;
    background: var(--primary);
    color: white;
    font-size: 13px;
    font-weight: 600;
    border-radius: 100px;
    margin-bottom: 24px;
    letter-spacing: 0.5px;
}

.hero h1 {
    font-size: clamp(40px, 8vw, 64px);
    color: var(--dark);
    margin-bottom: 20px;
}

.hero-subtitle {
    font-size: 18px;
    color: var(--text-light);
    margin-bottom: 32px;
    max-width: 560px;
}

.hero-stats {
    display: flex;
    gap: 40px;
    margin-bottom: 40px;
}

.stat {
    text-align: center;
}

.stat-value {
    display: block;
    font-family: 'Space Grotesk', sans-serif;
    font-size: 36px;
    font-weight: 700;
    color: var(--primary);
}

.stat-label {
    font-size: 14px;
    color: var(--text-light);
}

.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

/* Products Section */
.products {
    padding: 100px 0;
    background: var(--background);
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: clamp(28px, 5vw, 40px);
    margin-bottom: 16px;
}

.section-header p {
    font-size: 18px;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
}

.product-card {
    position: relative;
    background: var(--surface);
    border-radius: var(--radius-lg);
    padding: 40px 32px;
    border: 1px solid var(--border);
    transition: var(--transition);
}

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

.product-card.featured {
    border-color: var(--primary);
    background: linear-gradient(135deg, var(--surface) 0%, rgba(13, 148, 136, 0.05) 100%);
}

.product-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary);
    color: white;
    padding: 6px 16px;
    font-size: 12px;
    font-weight: 600;
    border-radius: 100px;
}

.product-icon {
    width: 64px;
    height: 64px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
}

.product-icon svg {
    width: 32px;
    height: 32px;
}

.product-icon.sanitiser {
    background: #fef3c7;
    color: #d97706;
}

.product-icon.freshclean {
    background: #d1fae5;
    color: var(--primary);
}

.product-icon.virucidal {
    background: #e0e7ff;
    color: var(--secondary);
}

.product-card h3 {
    font-size: 24px;
    margin-bottom: 8px;
}

.product-tagline {
    color: var(--text-light);
    margin-bottom: 20px;
}

.product-features {
    list-style: none;
    margin-bottom: 24px;
}

.product-features li {
    padding: 8px 0;
    padding-left: 24px;
    position: relative;
    color: var(--text);
}

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

.product-sizes {
    display: flex;
    gap: 12px;
    margin-bottom: 24px;
}

.size {
    background: var(--background);
    padding: 8px 16px;
    border-radius: 100px;
    font-size: 14px;
    font-weight: 500;
    border: 1px solid var(--border);
}

.product-card.coming-soon {
    opacity: 0.8;
}

.coming-soon-notify {
    margin-top: 16px;
}

.coming-soon-notify p {
    font-size: 14px;
    color: var(--text-light);
    margin-bottom: 12px;
}

/* Benefits Section */
.benefits {
    padding: 100px 0;
    background: var(--surface);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 32px;
}

.benefit-card {
    background: var(--background);
    padding: 40px 32px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    transition: var(--transition);
}

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

.benefit-icon {
    width: 56px;
    height: 56px;
    background: var(--accent);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.benefit-icon svg {
    width: 28px;
    height: 28px;
    color: var(--primary);
}

.benefit-card h3 {
    font-size: 20px;
    margin-bottom: 12px;
}

.benefit-card p {
    color: var(--text-light);
    margin-bottom: 20px;
}

.benefit-stat {
    display: flex;
    align-items: baseline;
    gap: 8px;
}

.stat-num {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 28px;
    font-weight: 700;
    color: var(--primary);
}

.stat-text {
    font-size: 14px;
    color: var(--text-light);
}

/* How It Works */
.how-it-works {
    padding: 100px 0;
    background: var(--background);
}

.steps {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
    margin-bottom: 60px;
}

.step {
    text-align: center;
    max-width: 200px;
}

.step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--primary);
    color: white;
    font-weight: 700;
    border-radius: 50%;
    margin-bottom: 16px;
}

.step-icon {
    width: 80px;
    height: 80px;
    background: var(--surface);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    border: 1px solid var(--border);
}

.step-icon svg {
    width: 40px;
    height: 40px;
    color: var(--primary);
}

.step h3 {
    font-size: 18px;
    margin-bottom: 8px;
}

.step p {
    font-size: 14px;
    color: var(--text-light);
}

.step-arrow {
    font-size: 24px;
    color: var(--primary);
    opacity: 0.5;
}

.accessories {
    text-align: center;
}

.accessories h3 {
    font-size: 24px;
    margin-bottom: 32px;
}

.accessories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 32px;
}

.accessory {
    padding: 24px;
}

.accessory-icon {
    font-size: 48px;
    margin-bottom: 16px;
}

.accessory h4 {
    font-size: 18px;
    margin-bottom: 8px;
}

.accessory p {
    font-size: 14px;
    color: var(--text-light);
}

/* Gallery */
.gallery {
    padding: 100px 0;
    background: var(--surface);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 32px;
}

.gallery-item {
    position: relative;
}

.gallery-placeholder {
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary) 100%);
    height: 300px;
    border-radius: var(--radius-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: white;
    text-align: center;
    padding: 24px;
}

.gallery-placeholder span {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 8px;
}

.gallery-placeholder p {
    opacity: 0.9;
}

/* CTA Section */
.cta {
    padding: 100px 0;
    background: var(--dark);
    color: white;
}

.cta-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.cta h2 {
    font-size: clamp(32px, 5vw, 48px);
    margin-bottom: 16px;
}

.cta p {
    font-size: 18px;
    opacity: 0.8;
    margin-bottom: 40px;
}

.cta-contact {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 12px;
}

.contact-icon {
    font-size: 24px;
}

.contact-label {
    display: block;
    font-size: 12px;
    opacity: 0.6;
    margin-bottom: 2px;
}

.contact-item a {
    color: white;
    text-decoration: none;
    font-weight: 600;
    font-size: 18px;
}

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

/* Form */
.sample-form {
    background: rgba(255, 255, 255, 0.05);
    padding: 32px;
    border-radius: var(--radius-lg);
    text-align: left;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 16px;
}

.sample-form input,
.sample-form textarea {
    width: 100%;
    padding: 14px 16px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius);
    color: white;
    font-size: 15px;
    font-family: 'Inter', sans-serif;
}

.sample-form input::placeholder,
.sample-form textarea::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

.sample-form textarea {
    min-height: 100px;
    resize: vertical;
    margin-bottom: 16px;
}

.form-checkbox {
    display: flex;
    gap: 24px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}

.form-checkbox label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
}

.form-checkbox input {
    width: 18px;
    height: 18px;
    accent-color: var(--primary);
}

.sample-form button {
    width: 100%;
}

/* Footer */
.footer {
    background: var(--dark);
    color: white;
    padding: 60px 0 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 60px;
    margin-bottom: 40px;
}

.footer-brand {
    max-width: 300px;
}

.footer-brand .logo-text {
    display: block;
    margin-bottom: 16px;
}

.footer-brand p {
    font-size: 14px;
    opacity: 0.7;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.footer-column h4 {
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 16px;
    opacity: 0.6;
}

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

.footer-column li {
    margin-bottom: 8px;
}

.footer-column a {
    color: white;
    text-decoration: none;
    font-size: 14px;
    opacity: 0.8;
    transition: var(--transition);
}

.footer-column a:hover {
    opacity: 1;
}

.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: 13px;
    opacity: 0.6;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 24px;
        gap: 16px;
        border-bottom: 1px solid var(--border);
        box-shadow: var(--shadow);
    }

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

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

    .hero {
        padding: 100px 0 60px;
    }

    .hero-stats {
        gap: 24px;
    }

    .stat-value {
        font-size: 28px;
    }

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

    .hero-actions .btn {
        width: 100%;
    }

    .products-grid,
    .benefits-grid {
        grid-template-columns: 1fr;
    }

    .steps {
        flex-direction: column;
    }

    .step-arrow {
        transform: rotate(90deg);
    }

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

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

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

    .footer-links {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 8px;
        text-align: center;
    }
}