/* CSS Variables & Reset */
:root {
    --primary-green: #0a4f32; /* Deep green */
    --secondary-green: #158254; /* Premium industrial green */
    --soft-green: #f0f7f4;
    --dark-charcoal: #1a1f1d;
    --dark-grey: #333d39;
    --light-grey: #e9ecef;
    --white: #ffffff;
    --border-color: #dbe3de;
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
    --shadow-hover: 0 10px 20px rgba(10, 79, 50, 0.12);
    --transition-fast: 0.2s ease;
    --font-main: 'Poppins', sans-serif;
}

/* Utilities */
.brand-logo {
    height: 55px;
    object-fit: contain;
    transition: var(--transition-fast);
}

.content-card {
    background: rgba(255,255,255,0.95);
    padding: 3rem;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.content-header {
    background: rgba(255,255,255,0.9);
    padding: 2rem;
    border-radius: 8px;
}

/* Modal System */
.buyer-modal-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(10, 25, 18, 0.95);
    z-index: 9999;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    padding: 2rem 1rem;
    overflow-y: auto;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    backdrop-filter: blur(5px);
}

.buyer-modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.buyer-modal-content {
    background: var(--white);
    width: 100%;
    max-width: 600px;
    border-radius: 12px;
    position: relative;
    transform: translateY(30px);
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: 0 20px 40px rgba(0,0,0,0.4);
    overflow: hidden;
    margin: auto;
}

.buyer-modal-overlay.active .buyer-modal-content {
    transform: translateY(0);
}

.modal-header {
    padding: 1.5rem 2rem;
    background: var(--light-bg);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h2 {
    font-size: 1.5rem;
    color: var(--primary-green);
    margin: 0;
}

.close-modal {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--dark-grey);
    padding: 0.5rem;
    transition: color var(--transition-fast);
}

.close-modal:hover {
    color: var(--primary-green);
}

.modal-body {
    padding: 2rem;
    max-height: calc(100vh - 200px);
    overflow-y: auto;
}

/* Form Group overrides for modal */
.modal-body .form-group {
    margin-bottom: 1.5rem;
}
.modal-body .form-group.full-width {
    grid-column: 1 / -1;
}
.modal-body .form-grid {
    display: grid;
    grid-template-columns: 1fr; /* Force 1 column for mobile-first feel */
    gap: 1rem;
}

.error-text {
    color: #d93025;
    font-size: 0.85rem;
    margin-top: 0.5rem;
    display: none;
}
.form-group.error .error-text {
    display: block;
}
.form-group.error input,
.form-group.error select,
.form-group.error textarea {
    border-color: #d93025;
    background-color: #fdf3f2;
}

.checkbox-group {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
}
.checkbox-group input {
    margin-top: 0.2rem;
    width: auto;
}
.checkbox-group label {
    font-weight: normal;
    color: var(--dark-grey);
}
.checkbox-group a {
    color: var(--primary-green);
    text-decoration: underline;
}

#modal-success-screen {
    text-align: center;
    padding: 3rem 2rem;
}

.success-icon {
    font-size: 4rem;
    color: var(--primary-green);
    margin-bottom: 1rem;
}

#modal-success-screen h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

#modal-success-screen p {
    color: var(--dark-grey);
    margin-bottom: 2rem;
}

.success-cta-box {
    background: var(--light-bg);
    padding: 1.5rem;
    border-radius: 8px;
    margin-bottom: 2rem;
}

/* Background Animation */
@keyframes bgDrift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.themed-bg {
    background-image: linear-gradient(rgba(5, 20, 12, 0.88), rgba(5, 20, 12, 0.88)), url('bg.jpg');
    background-size: cover;
    background-attachment: fixed;
    background-position: center;
    position: relative;
}

.themed-bg > * {
    position: relative;
    z-index: 1;
}

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

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

body {
    font-family: var(--font-main);
    color: var(--dark-charcoal);
    background-color: var(--white);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    color: var(--dark-charcoal);
    font-weight: 700;
    line-height: 1.2;
}

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

img {
    max-width: 100%;
    height: auto;
    display: block;
}

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

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

.hidden {
    display: none !important;
}

.section-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 5rem 2rem;
}

.section-header {
    margin-bottom: 3rem;
}

.section-header h2 {
    font-size: 2.5rem;
    color: var(--primary-green);
    margin-bottom: 1rem;
}

.section-header p {
    font-size: 1.1rem;
    color: var(--dark-grey);
    max-width: 700px;
    margin: 0 auto;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border-radius: 4px;
    font-weight: 600;
    cursor: pointer;
    border: 2px solid transparent;
    transition: var(--transition-norm);
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

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

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

.btn-secondary {
    background-color: var(--dark-grey);
    color: var(--white);
}

.btn-secondary:hover {
    background-color: var(--dark-charcoal);
    transform: translateY(-2px);
}

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

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

.btn-whatsapp {
    background-color: #25D366;
    color: var(--white);
}

.btn-whatsapp:hover {
    background-color: #128C7E;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Header & Nav */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: var(--white);
    transition: var(--transition-norm);
    border-bottom: 1px solid var(--border-color);
}

header.scrolled {
    box-shadow: var(--shadow-sm);
    padding: 0.5rem 0;
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition-norm);
}

header.scrolled .header-container {
    padding: 0.5rem 2rem;
}

.logo a {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-green);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo span {
    font-weight: 400;
    color: var(--dark-grey);
}

.desktop-nav ul {
    list-style: none;
    display: flex;
    gap: 2rem;
}

.desktop-nav a {
    font-weight: 500;
    color: var(--dark-grey);
}

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

.header-actions {
    display: flex;
    gap: 1rem;
}

/* Mobile Menu */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.mobile-menu-toggle .bar {
    width: 25px;
    height: 3px;
    background-color: var(--primary-green);
    transition: var(--transition-norm);
}

.mobile-nav {
    position: fixed;
    top: 70px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 70px);
    background-color: var(--white);
    padding: 2rem;
    transition: var(--transition-norm);
    overflow-y: auto;
}

.mobile-nav.active {
    left: 0;
}

.mobile-nav ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.mobile-nav a {
    font-size: 1.2rem;
    font-weight: 500;
    color: var(--dark-charcoal);
}

.mobile-nav-actions {
    margin-top: 1rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

/* Hero Section */
.hero-section {
    padding-top: 120px;
    min-height: 90vh;
    display: flex;
    align-items: center;
    background-color: var(--white);
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    background: linear-gradient(135deg, var(--soft-green) 0%, rgba(255,255,255,0) 100%);
    z-index: 0;
}

.hero-content {
    max-width: 600px;
    margin-left: 10%;
    position: relative;
    z-index: 2;
}

.hero-content h1 {
    font-size: 3.5rem;
    color: var(--dark-charcoal);
    margin-bottom: 1.5rem;
}

.hero-content p {
    font-size: 1.25rem;
    color: var(--dark-grey);
    margin-bottom: 2rem;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
}

.trust-statement {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--primary-green);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.trust-statement::before {
    content: '★';
    color: var(--secondary-green);
}

.hero-visual {
    position: absolute;
    right: 5%;
    top: 50%;
    transform: translateY(-50%);
    width: 40%;
    height: 400px;
    z-index: 1;
}

/* Abstract Cycle Animation */
.abstract-cycle {
    position: relative;
    width: 100%;
    height: 100%;
}

.cycle-node {
    position: absolute;
    padding: 1rem;
    background-color: var(--white);
    border: 2px solid var(--primary-green);
    border-radius: 8px;
    font-weight: 600;
    color: var(--primary-green);
    box-shadow: var(--shadow-md);
    animation: float 4s infinite ease-in-out alternate;
}

.node-1 { top: 10%; left: 10%; animation-delay: 0s; }
.node-2 { top: 10%; right: 10%; animation-delay: 1s; }
.node-3 { bottom: 10%; right: 10%; animation-delay: 2s; }
.node-4 { bottom: 10%; left: 10%; animation-delay: 3s; }

.cycle-line {
    position: absolute;
    background-color: var(--secondary-green);
    opacity: 0.3;
}

.line-1 { top: 18%; left: 30%; width: 40%; height: 2px; }
.line-2 { top: 30%; right: 18%; width: 2px; height: 40%; }
.line-3 { bottom: 18%; right: 30%; width: 40%; height: 2px; }

@keyframes float {
    0% { transform: translateY(0); }
    100% { transform: translateY(-10px); }
}

/* Trust Strip */
.trust-strip {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    background-color: var(--primary-green);
    color: var(--white);
    padding: 2rem 5%;
}

.strip-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0 1rem;
    border-right: 1px solid rgba(255,255,255,0.2);
}

.strip-item:last-child {
    border-right: none;
}

.icon-placeholder {
    font-size: 2rem;
}

.strip-text {
    display: flex;
    flex-direction: column;
}

.strip-text strong {
    font-size: 1.1rem;
}

.strip-text span {
    font-size: 0.85rem;
    opacity: 0.8;
}

/* Requirement Form Section */
.form-section {
    background-color: var(--white);
}

.form-wrapper {
    max-width: 800px;
    margin: 0 auto;
    background-color: var(--white);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 3rem;
    box-shadow: var(--shadow-sm);
}

.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.form-group.full-width {
    grid-column: span 2;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--dark-charcoal);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-family: var(--font-main);
    font-size: 1rem;
    transition: var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-green);
    box-shadow: 0 0 0 3px rgba(10, 79, 50, 0.1);
}

.form-submit {
    margin-top: 2rem;
}

.form-success-message {
    text-align: center;
    padding: 3rem;
    background-color: var(--soft-green);
    border-radius: 8px;
    border: 1px solid var(--primary-green);
}

.form-success-message h3 {
    color: var(--primary-green);
    font-size: 1.8rem;
    margin-bottom: 1rem;
}

.success-actions {
    margin-top: 2rem;
    display: flex;
    justify-content: center;
    gap: 1rem;
}

/* Materials Section */
.material-search {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    background-color: var(--white);
    padding: 1rem;
    border-radius: 8px;
    box-shadow: var(--shadow-sm);
}

#material-search-input {
    flex: 1;
    max-width: 300px;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 1rem;
}

.material-filters {
    display: flex;
    align-items: center;
    gap: 1rem;
}

#filter-form {
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
}

.materials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
}

.material-card {
    background-color: var(--white);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 2rem;
    transition: var(--transition-norm);
    position: relative;
    overflow: hidden;
}

.material-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary-green);
}

.material-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background-color: var(--primary-green);
}

.material-card h3 {
    font-size: 2rem;
    color: var(--primary-green);
    margin-bottom: 0.25rem;
}

.material-card h4 {
    font-size: 1rem;
    color: var(--dark-grey);
    margin-bottom: 1rem;
    font-weight: 500;
}

.material-card p {
    font-size: 0.95rem;
    color: var(--dark-grey);
    margin-bottom: 1.5rem;
}

.card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.card-tags span {
    background-color: var(--soft-green);
    color: var(--secondary-green);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

.btn-enquire span {
    display: inline-block;
    transition: var(--transition-fast);
    margin-left: 0.5rem;
}

.material-card:hover .btn-enquire span {
    transform: translateX(4px);
}

/* Why Section */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.feature-card {
    background-color: var(--white);
    padding: 2rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    text-align: center;
    transition: var(--transition-norm);
}

.feature-card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--primary-green);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    margin-bottom: 0.5rem;
}

/* Process Timeline */
.timeline-container {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline-line {
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background-color: var(--secondary-green);
    transform: translateX(-50%);
    opacity: 0.3;
}

.timeline-step {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 3rem;
    position: relative;
}

.timeline-step:nth-child(even) {
    flex-direction: row-reverse;
}

.step-marker {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 40px;
    height: 40px;
    background-color: var(--primary-green);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    z-index: 2;
    border: 4px solid var(--white);
}

.step-content {
    width: 45%;
    background-color: var(--white);
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: var(--shadow-sm);
    border-left: 4px solid var(--primary-green);
}

.timeline-step:nth-child(even) .step-content {
    border-left: none;
    border-right: 4px solid var(--primary-green);
    text-align: right;
}

/* Industries We Serve */
.industries-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.industry-card {
    background-color: var(--soft-green);
    padding: 2rem 1rem;
    border-radius: 8px;
    text-align: center;
    border: 1px solid transparent;
    transition: var(--transition-norm);
    cursor: pointer;
}

.industry-card:hover {
    background-color: var(--primary-green);
    color: var(--white);
    transform: translateY(-5px);
}

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

.industry-card h3 {
    font-size: 1.1rem;
    transition: var(--transition-norm);
}

/* CTA Section */
.cta-section {
    background-color: var(--dark-grey);
    color: var(--white);
    padding: 5rem 2rem;
}

.cta-section h2 {
    color: var(--white);
    margin-bottom: 1rem;
}

.cta-section p {
    color: var(--light-grey);
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-actions {
    display: flex;
    justify-content: center;
    gap: 1rem;
}

/* About Section */
.about-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.about-content h2 {
    margin-bottom: 1.5rem;
}

.about-content p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
}

.approach-box {
    background-color: var(--white);
    padding: 2rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.flow-text {
    font-weight: 600;
    color: var(--primary-green);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.flow-text span {
    color: var(--dark-grey);
    opacity: 0.5;
}

/* Blog Section */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.blog-card {
    background-color: var(--white);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 2rem;
    transition: var(--transition-norm);
    aspect-ratio: 1 / 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.blog-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-3px);
}

.blog-category {
    font-size: 0.8rem;
    text-transform: uppercase;
    font-weight: 700;
    color: var(--secondary-green);
    margin-bottom: 1rem;
}

.blog-card h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

.blog-card p {
    font-size: 0.95rem;
    color: var(--dark-grey);
    margin-bottom: 1.5rem;
}

.read-more {
    font-weight: 600;
    color: var(--primary-green);
    display: inline-flex;
    align-items: center;
}

.read-more::after {
    content: '→';
    margin-left: 0.5rem;
    transition: var(--transition-fast);
}

.blog-card:hover .read-more::after {
    transform: translateX(4px);
}

/* FAQ Section */
.faq-accordion {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    margin-bottom: 1rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background-color: var(--white);
    overflow: hidden;
}

.faq-question {
    width: 100%;
    text-align: left;
    padding: 1.5rem;
    background: none;
    border: none;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--dark-charcoal);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-question::after {
    content: '+';
    font-size: 1.5rem;
    color: var(--primary-green);
}

.faq-item.active .faq-question::after {
    content: '−';
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    padding: 0 1.5rem;
    background-color: var(--white);
}

.faq-item.active .faq-answer {
    padding-bottom: 1.5rem;
}

/* Contact Section */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.company-name {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-green);
    margin-bottom: 2rem;
}

.contact-details {
    margin-bottom: 2rem;
}

.contact-method {
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.contact-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.map-placeholder {
    width: 100%;
    height: 400px;
    background-color: var(--soft-green);
    border-radius: 8px;
    border: 1px solid var(--border-color);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    background-image: radial-gradient(var(--border-color) 1px, transparent 1px);
    background-size: 20px 20px;
}

.map-overlay {
    background-color: var(--white);
    padding: 1rem 2rem;
    border-radius: 4px;
    box-shadow: var(--shadow-sm);
    font-weight: 600;
    color: var(--primary-green);
}

/* Footer */
footer {
    background-color: var(--dark-charcoal);
    color: var(--light-grey);
}

.footer-top {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 2rem;
    margin-bottom: 3rem;
}

.footer-brand h3 {
    color: var(--white);
    margin-bottom: 0.5rem;
}

.footer-links h4, .footer-contact h4 {
    color: var(--white);
    margin-bottom: 1.5rem;
}

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

.footer-links li {
    margin-bottom: 0.5rem;
}

.footer-links a:hover {
    color: var(--soft-green);
}

.materials-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.legal-links {
    display: flex;
    gap: 1.5rem;
}

.legal-links a:hover {
    color: var(--white);
}

/* Floating Actions */
.floating-actions {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    z-index: 99;
}

.float-btn {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    box-shadow: var(--shadow-md);
    cursor: pointer;
    border: none;
    transition: var(--transition-fast);
}

.float-btn:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}

.float-whatsapp {
    background-color: #25D366;
}

.float-top {
    background-color: var(--dark-grey);
    opacity: 0;
    visibility: hidden;
}

.float-top.visible {
    opacity: 1;
    visibility: visible;
}

/* Animations */
.fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }

@media (prefers-reduced-motion: reduce) {
    .fade-up {
        transition: none;
        opacity: 1;
        transform: none;
    }
    .material-card, .btn, .industry-card {
        transition: none;
    }
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero-content h1 {
        font-size: 3rem;
    }
    .trust-strip {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
    .strip-item:nth-child(2) {
        border-right: none;
    }
    .footer-top {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .desktop-nav, .header-actions {
        display: none;
    }
    .mobile-menu-toggle {
        display: flex;
    }
    .hero-section {
        flex-direction: column;
        padding-top: 100px;
        text-align: center;
    }
    .hero-content {
        margin-left: 0;
        margin-top: 2rem;
    }
    .hero-visual {
        position: relative;
        width: 100%;
        height: 300px;
        right: 0;
        transform: none;
        margin-top: 2rem;
    }
    .hero-section::before {
        width: 100%;
        height: 50%;
        top: auto;
        bottom: 0;
    }
    .hero-cta {
        justify-content: center;
        flex-direction: column;
    }
    .trust-statement {
        justify-content: center;
    }
    .brand-logo {
        height: 40px;
    }
    .content-card {
        padding: 1.5rem;
    }
    .content-header {
        padding: 1rem;
    }
    .form-grid {
        grid-template-columns: 1fr;
    }
    .form-group.full-width {
        grid-column: 1;
    }
    .features-grid {
        grid-template-columns: 1fr;
    }
    .timeline-line {
        left: 20px;
    }
    .step-marker {
        left: 20px;
    }
    .timeline-step, .timeline-step:nth-child(even) {
        flex-direction: row;
    }
    .step-content, .timeline-step:nth-child(even) .step-content {
        width: 80%;
        margin-left: auto;
        text-align: left;
        border-left: 4px solid var(--primary-green);
        border-right: none;
    }
    .industries-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .contact-grid {
        grid-template-columns: 1fr;
    }
    .footer-bottom {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    .cta-actions {
        flex-direction: column;
    }
    .material-search {
        flex-direction: column;
        align-items: stretch;
    }
    #material-search-input {
        max-width: 100%;
        margin-bottom: 1rem;
    }
}

@media (max-width: 480px) {
    .trust-strip {
        grid-template-columns: 1fr;
    }
    .strip-item {
        border-right: none;
        border-bottom: 1px solid rgba(255,255,255,0.2);
        padding-bottom: 1rem;
    }
    .strip-item:last-child {
        border-bottom: none;
        padding-bottom: 0;
    }
    .industries-grid {
        grid-template-columns: 1fr;
    }
    .footer-top {
        grid-template-columns: 1fr;
    }
    .hero-content h1 {
        font-size: 2.5rem;
    }
    .form-wrapper {
        padding: 1.5rem;
    }
}