/* BioKite Labs - Brand Colors & CSS Variables */
:root {
    /* Primary Colors */
    --biokite-blue: #3786B7;
    --biokite-blue-rgb: 55, 134, 183;
    --sky-blue: #50B0D6;
    --sky-blue-rgb: 80, 176, 214;

    /* Secondary Colors */
    --kite-green: #7A9F5F;
    --kite-green-rgb: 122, 159, 95;
    --lime-green: #AFBE6A;
    --lime-green-rgb: 175, 190, 106;

    /* Neutral Colors */
    --deep-navy: #2E507E;
    --deep-navy-rgb: 46, 80, 126;
    --charcoal: #4E4F4F;
    --charcoal-rgb: 78, 79, 79;
    --light-gray: #D8E1D3;
    --light-gray-rgb: 216, 225, 211;

    /* Additional UI Colors */
    --white: #FFFFFF;
    --off-white: #F8FAF7;
    --dark-bg: #1a2e45;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.15);

    /* Spacing */
    --section-padding: 100px 0;
    --container-padding: 0 20px;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* Reset & Base Styles */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

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

body.menu-open {
    overflow: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    line-height: 1.2;
    color: var(--deep-navy);
}

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

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

ul {
    list-style: none;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--container-padding);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 32px;
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
    font-size: 0.95rem;
    border-radius: 8px;
    cursor: pointer;
    transition: all var(--transition-normal);
    border: 2px solid transparent;
}

.btn-primary {
    background: linear-gradient(135deg, var(--biokite-blue), var(--sky-blue));
    color: var(--white);
    box-shadow: 0 4px 15px rgba(var(--biokite-blue-rgb), 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(var(--biokite-blue-rgb), 0.4);
}

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

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

.btn-outline {
    background: transparent;
    color: var(--biokite-blue);
    border-color: var(--biokite-blue);
}

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

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: linear-gradient(135deg, var(--biokite-blue) 0%, var(--deep-navy) 100%);
    backdrop-filter: blur(10px);
    box-shadow: none;
    transition: all var(--transition-normal);
}

.navbar.scrolled {
    box-shadow: var(--shadow-md);
    background: linear-gradient(135deg, var(--biokite-blue) 0%, var(--deep-navy) 100%);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.nav-logo img {
    height: 80px;
    width: auto;
    background: var(--white);
    padding: 8px 12px;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.nav-logo span {
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    font-size: 1.3rem;
    color: var(--white);
    letter-spacing: 0.5px;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-link {
    padding: 10px 16px;
    font-weight: 500;
    font-size: 0.9rem;
    color: var(--white);
    border-radius: 6px;
    transition: all var(--transition-fast);
}

.nav-link:hover {
    color: var(--lime-green);
    background: rgba(255, 255, 255, 0.1);
}

.nav-link.nav-cta {
    background: var(--biokite-blue);
    color: var(--white);
    margin-left: 8px;
}

.nav-link.nav-cta:hover {
    background: var(--deep-navy);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
    z-index: 1001;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--white);
    border-radius: 2px;
    transition: all var(--transition-fast);
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(7px, 7px);
}

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

.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* Mobile menu backdrop */
.nav-backdrop {
    display: none;
    position: fixed;
    top: 80px;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.nav-backdrop.active {
    display: block;
    opacity: 1;
}

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

.hero-background {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--deep-navy) 0%, var(--biokite-blue) 50%, var(--sky-blue) 100%);
    z-index: -1;
}

.hero-background::after {
    content: '';
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    opacity: 0.5;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-text {
    color: var(--white);
}

.hero-text h1 {
    font-size: 3.5rem;
    color: var(--white);
    margin-bottom: 24px;
    line-height: 1.1;
}

.hero-text h1 .highlight {
    color: var(--lime-green);
}

.hero-subtitle {
    font-size: 1.2rem;
    opacity: 0.9;
    margin-bottom: 40px;
    max-width: 500px;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 40px;
}

.stat {
    text-align: center;
    padding: 20px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    backdrop-filter: blur(10px);
}

.stat-number {
    display: block;
    font-family: 'Montserrat', sans-serif;
    font-size: 2rem;
    font-weight: 800;
    color: var(--lime-green);
    margin-bottom: 8px;
}

.stat-label {
    font-size: 0.85rem;
    opacity: 0.8;
}

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

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-logo-img {
    max-width: 350px;
    filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.3));
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    color: var(--white);
    opacity: 0.7;
    animation: bounce 2s infinite;
}

.scroll-indicator span {
    font-size: 0.85rem;
    margin-bottom: 8px;
}

.scroll-arrow {
    width: 24px;
    height: 24px;
    border-right: 2px solid var(--white);
    border-bottom: 2px solid var(--white);
    transform: rotate(45deg);
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
    40% { transform: translateX(-50%) translateY(-10px); }
    60% { transform: translateX(-50%) translateY(-5px); }
}

/* Section Styles */
.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 60px;
}

.section-header.light h2,
.section-header.light p {
    color: var(--white);
}

.section-header.light .section-tag {
    background: rgba(255, 255, 255, 0.2);
    color: var(--white);
}

.section-tag {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(var(--biokite-blue-rgb), 0.1);
    color: var(--biokite-blue);
    font-size: 0.85rem;
    font-weight: 600;
    border-radius: 20px;
    margin-bottom: 16px;
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.section-header p {
    font-size: 1.1rem;
    color: var(--charcoal);
    opacity: 0.8;
}

/* Problem Section */
.problem-section {
    padding: var(--section-padding);
    background: var(--off-white);
}

.problem-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.problem-card {
    background: var(--white);
    padding: 40px;
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
}

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

.problem-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(var(--biokite-blue-rgb), 0.1);
    border-radius: 12px;
    margin-bottom: 20px;
}

.problem-icon svg {
    width: 30px;
    height: 30px;
    color: var(--biokite-blue);
}

.problem-card h3 {
    font-size: 1.3rem;
    margin-bottom: 12px;
}

.problem-card p {
    color: var(--charcoal);
    opacity: 0.8;
}

/* Solution Section */
.solution-section {
    padding: var(--section-padding);
    background: linear-gradient(135deg, var(--biokite-blue) 0%, var(--deep-navy) 100%);
}

.solution-main {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.solution-text {
    color: var(--white);
}

.solution-text h3 {
    font-size: 1.8rem;
    color: var(--white);
    margin-bottom: 20px;
}

.solution-text p {
    opacity: 0.9;
    margin-bottom: 30px;
}

.solution-features {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.solution-features li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.feature-icon {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    background: var(--lime-green);
    color: var(--deep-navy);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 0.9rem;
}

.solution-image {
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.solution-image img {
    width: 100%;
    height: auto;
    display: block;
}

/* How It Works Section */
.how-section {
    padding: var(--section-padding);
    background: var(--white);
}

.steps-container {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 20px;
}

.step {
    flex: 1;
    text-align: center;
    padding: 20px;
    position: relative;
}

.step-number {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 30px;
    height: 30px;
    background: var(--lime-green);
    color: var(--deep-navy);
    border-radius: 50%;
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.step-icon {
    width: 80px;
    height: 80px;
    margin: 40px auto 20px;
    background: rgba(var(--biokite-blue-rgb), 0.1);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-normal);
}

.step:hover .step-icon {
    background: var(--biokite-blue);
}

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

.step-icon svg {
    width: 36px;
    height: 36px;
    color: var(--biokite-blue);
    transition: all var(--transition-normal);
}

.step-icon.warning {
    background: rgba(var(--kite-green-rgb), 0.2);
}

.step-icon.warning svg {
    color: var(--kite-green);
}

.step:hover .step-icon.warning {
    background: var(--kite-green);
}

.step:hover .step-icon.warning svg {
    color: var(--white);
}

.step h3 {
    font-size: 1.2rem;
    margin-bottom: 12px;
}

.step p {
    font-size: 0.9rem;
    color: var(--charcoal);
    opacity: 0.8;
}

.step-connector {
    width: 60px;
    height: 2px;
    background: linear-gradient(90deg, var(--biokite-blue), var(--sky-blue));
    margin-top: 100px;
    flex-shrink: 0;
}

/* Components Section */
.components-section {
    padding: var(--section-padding);
    background: var(--off-white);
}

.components-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.component-card {
    background: var(--white);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
}

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

.component-header {
    padding: 30px;
    color: var(--white);
}

.component-header.powerguard {
    background: linear-gradient(135deg, var(--biokite-blue), var(--sky-blue));
}

.component-header.sensorclip {
    background: linear-gradient(135deg, var(--kite-green), var(--lime-green));
}

.component-header.steribox {
    background: linear-gradient(135deg, var(--deep-navy), var(--biokite-blue));
}

.component-header h3 {
    color: var(--white);
    font-size: 1.5rem;
    margin-bottom: 8px;
}

.component-tag {
    font-size: 0.8rem;
    opacity: 0.9;
}

.component-body {
    padding: 30px;
}

.component-body p {
    margin-bottom: 20px;
    color: var(--charcoal);
}

.component-body ul {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.component-body li {
    position: relative;
    padding-left: 20px;
    font-size: 0.9rem;
    color: var(--charcoal);
}

.component-body li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 8px;
    width: 8px;
    height: 8px;
    background: var(--lime-green);
    border-radius: 50%;
}

/* Impact Section */
.impact-section {
    padding: var(--section-padding);
    background: linear-gradient(135deg, var(--kite-green) 0%, var(--deep-navy) 100%);
}

.impact-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin-bottom: 50px;
}

.impact-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 40px 30px;
    border-radius: 16px;
    text-align: center;
    color: var(--white);
    transition: all var(--transition-normal);
}

.impact-card:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-5px);
}

.impact-number {
    font-family: 'Montserrat', sans-serif;
    font-size: 3rem;
    font-weight: 800;
    color: var(--lime-green);
    margin-bottom: 16px;
}

.impact-text h3 {
    color: var(--white);
    font-size: 1.1rem;
    margin-bottom: 8px;
}

.impact-text p {
    font-size: 0.9rem;
    opacity: 0.8;
}

.evidence-box {
    background: rgba(255, 255, 255, 0.95);
    padding: 40px;
    border-radius: 16px;
    max-width: 900px;
    margin: 0 auto;
}

.evidence-box h3 {
    font-size: 1.3rem;
    margin-bottom: 16px;
    color: var(--deep-navy);
}

.evidence-box p {
    color: var(--charcoal);
    line-height: 1.7;
}

/* About Section */
.about-section {
    padding: var(--section-padding);
    background: var(--white);
}

.mission-vision {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    margin-bottom: 60px;
}

.mv-card {
    background: var(--off-white);
    padding: 40px;
    border-radius: 16px;
    border-left: 4px solid var(--biokite-blue);
}

.mv-card h3 {
    font-size: 1.3rem;
    margin-bottom: 16px;
    color: var(--biokite-blue);
}

.mv-card p {
    color: var(--charcoal);
    line-height: 1.7;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.value-item {
    text-align: center;
    padding: 30px 20px;
}

.value-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 20px;
    background: rgba(var(--biokite-blue-rgb), 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.value-icon svg {
    width: 32px;
    height: 32px;
    color: var(--biokite-blue);
}

.value-item h4 {
    font-size: 1.1rem;
    margin-bottom: 12px;
}

.value-item p {
    font-size: 0.9rem;
    color: var(--charcoal);
    opacity: 0.8;
}

/* Partners Section */
.partners-section {
    padding: var(--section-padding);
    background: var(--off-white);
}

.partners-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.partner-type {
    background: var(--white);
    padding: 30px;
    border-radius: 16px;
    box-shadow: var(--shadow-sm);
    text-align: center;
    transition: all var(--transition-normal);
}

.partner-type:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-3px);
}

.partner-type h3 {
    font-size: 1.1rem;
    margin-bottom: 12px;
    color: var(--biokite-blue);
}

.partner-type p {
    font-size: 0.9rem;
    color: var(--charcoal);
    opacity: 0.8;
}

/* Contact Section */
.contact-section {
    padding: var(--section-padding);
    background: linear-gradient(135deg, var(--deep-navy) 0%, var(--biokite-blue) 100%);
}

.contact-grid {
    max-width: 800px;
    margin: 0 auto;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.contact-item {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 30px;
    border-radius: 16px;
    color: var(--white);
}

.contact-item h3 {
    color: var(--lime-green);
    font-size: 1.2rem;
    margin-bottom: 12px;
}

.contact-item p {
    opacity: 0.9;
    line-height: 1.6;
}

.contact-cta {
    text-align: center;
    padding: 40px;
    color: var(--white);
}

.contact-cta p {
    font-size: 1.2rem;
    margin-bottom: 24px;
}

.contact-cta .btn {
    margin: 0 10px;
}

/* Footer */
.footer {
    background: var(--deep-navy);
    color: var(--white);
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 60px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
}

.footer-brand img {
    height: 50px;
    width: auto;
}

.footer-brand span {
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    font-size: 1.2rem;
}

.footer-brand p {
    opacity: 0.7;
    font-size: 0.9rem;
}

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

.footer-column h4 {
    color: var(--white);
    font-size: 1rem;
    margin-bottom: 20px;
}

.footer-column ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-column a {
    opacity: 0.7;
    font-size: 0.9rem;
    transition: opacity var(--transition-fast);
}

.footer-column a:hover {
    opacity: 1;
    color: var(--lime-green);
}

.footer-bottom {
    padding-top: 30px;
    text-align: center;
}

.footer-bottom p {
    font-size: 0.85rem;
    opacity: 0.6;
    margin-bottom: 8px;
}

/* Responsive Design */
@media (max-width: 1024px) {
    :root {
        --section-padding: 60px 0;
    }

    .container {
        padding: 0 24px;
    }

    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
    }

    .hero-text h1 {
        font-size: 2.8rem;
    }

    .hero-subtitle {
        margin: 0 auto 40px;
        font-size: 1.1rem;
    }

    .hero-buttons {
        justify-content: center;
    }

    .hero-image {
        display: none;
    }

    .hero-stats {
        grid-template-columns: repeat(3, 1fr);
        gap: 16px;
    }

    .stat {
        padding: 16px;
    }

    .stat-number {
        font-size: 1.6rem;
    }

    .stat-label {
        font-size: 0.75rem;
    }

    .solution-main {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .components-grid,
    .impact-grid,
    .values-grid,
    .partners-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .steps-container {
        flex-wrap: wrap;
        justify-content: center;
    }

    .step {
        flex: 0 0 calc(33.333% - 20px);
        min-width: 200px;
    }

    .step-connector {
        display: none;
    }

    .section-header h2 {
        font-size: 2.2rem;
    }

    .section-header p {
        font-size: 1rem;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 80px;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        align-items: stretch;
        padding: 20px;
        box-shadow: var(--shadow-xl);
        transform: translateY(-150%);
        opacity: 0;
        visibility: hidden;
        transition: transform var(--transition-normal), opacity var(--transition-normal), visibility 0s linear 0.3s;
        max-height: calc(100vh - 80px);
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
        z-index: 1000;
    }

    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
        transition: transform var(--transition-normal), opacity var(--transition-normal), visibility 0s;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-link {
        color: var(--deep-navy);
        padding: 15px 20px;
        text-align: center;
        border-bottom: 1px solid var(--light-gray);
        font-size: 1rem;
    }

    .nav-link:last-child {
        border-bottom: none;
    }

    .nav-link:hover {
        background: rgba(var(--biokite-blue-rgb), 0.1);
        color: var(--biokite-blue);
    }

    .nav-link.nav-cta {
        margin-left: 0;
        margin-top: 10px;
        text-align: center;
        background: var(--biokite-blue);
        color: var(--white);
        border-radius: 8px;
    }

    .nav-link.nav-cta:hover {
        background: var(--deep-navy);
        color: var(--white);
    }

    .hero {
        min-height: auto;
        padding: 120px 0 60px;
    }

    .hero-text h1 {
        font-size: 2.2rem;
        margin-bottom: 20px;
    }

    .hero-subtitle {
        font-size: 1rem;
        margin-bottom: 30px;
    }

    .hero-stats {
        grid-template-columns: 1fr;
        gap: 12px;
        margin-bottom: 30px;
    }

    .stat {
        padding: 16px 12px;
    }

    .stat-number {
        font-size: 1.5rem;
    }

    .stat-label {
        font-size: 0.8rem;
    }

    .section-header h2 {
        font-size: 1.8rem;
    }

    .section-header p {
        font-size: 0.95rem;
    }

    .section-header {
        margin-bottom: 40px;
    }

    .problem-grid,
    .mission-vision {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .problem-card {
        padding: 30px 25px;
    }

    .components-grid,
    .impact-grid,
    .values-grid,
    .partners-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .step {
        flex: 0 0 100%;
        padding: 15px;
    }

    .step-icon {
        width: 70px;
        height: 70px;
        margin: 35px auto 15px;
    }

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

    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .footer-links {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }

    .scroll-indicator {
        display: none;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .nav-container {
        padding: 0 16px;
        height: 70px;
    }

    .nav-logo img {
        height: 65px;
        padding: 6px 10px;
    }

    .nav-menu {
        top: 70px;
        max-height: calc(100vh - 70px);
        padding: 16px;
    }

    .nav-backdrop {
        top: 70px;
    }

    .nav-link {
        padding: 12px 16px;
        font-size: 0.95rem;
    }

    .hero {
        padding: 100px 0 40px;
    }

    .hero-text h1 {
        font-size: 1.75rem;
        line-height: 1.2;
    }

    .hero-subtitle {
        font-size: 0.95rem;
        margin-bottom: 25px;
    }

    .hero-buttons {
        flex-direction: column;
        width: 100%;
        gap: 12px;
    }

    .btn {
        width: 100%;
        padding: 12px 24px;
        font-size: 0.9rem;
    }

    .section-header h2 {
        font-size: 1.6rem;
    }

    .section-header p {
        font-size: 0.9rem;
    }

    .section-tag {
        font-size: 0.8rem;
        padding: 5px 14px;
    }

    .problem-card,
    .component-body,
    .mv-card,
    .contact-item,
    .partner-type {
        padding: 25px 20px;
    }

    .problem-card h3,
    .component-header h3 {
        font-size: 1.2rem;
    }

    .problem-icon,
    .value-icon {
        width: 50px;
        height: 50px;
    }

    .problem-icon svg,
    .value-icon svg {
        width: 26px;
        height: 26px;
    }

    .impact-card {
        padding: 30px 20px;
    }

    .impact-number {
        font-size: 2.5rem;
    }

    .contact-cta {
        padding: 30px 20px;
    }

    .contact-cta p {
        font-size: 1rem;
    }

    .contact-cta .btn {
        margin: 8px 0;
        width: 100%;
    }

    .footer-links {
        grid-template-columns: 1fr;
        gap: 25px;
    }

    .footer-content {
        gap: 30px;
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-on-scroll {
    opacity: 0;
    animation: fadeInUp 0.6s ease forwards;
}

/* Utility Classes */
.text-center { text-align: center; }
.text-white { color: var(--white); }
.bg-light { background: var(--off-white); }
.mt-4 { margin-top: 40px; }
.mb-4 { margin-bottom: 40px; }

/* Mobile touch improvements */
@media (hover: none) and (pointer: coarse) {
    .btn,
    .nav-link,
    .nav-toggle {
        -webkit-tap-highlight-color: transparent;
        touch-action: manipulation;
    }

    .nav-link {
        min-height: 44px;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .nav-toggle {
        min-width: 44px;
        min-height: 44px;
        display: flex;
        align-items: center;
        justify-content: center;
    }
}

/* Focus states for accessibility */
.nav-toggle:focus,
.btn:focus,
.nav-link:focus {
    outline: 2px solid var(--biokite-blue);
    outline-offset: 2px;
}

.nav-toggle:focus:not(:focus-visible),
.btn:focus:not(:focus-visible),
.nav-link:focus:not(:focus-visible) {
    outline: none;
}