/* =============================================
   LOZUDUHICIRO - Modern CSS (2025 Design Trends)
   Polish Oil Storage Facility Website
   ============================================= */

/* =============================================
   CSS Variables & Root Styles
   ============================================= */
:root {
    /* Color Palette - Industrial Oil Industry Theme */
    --primary-dark: #0a1929;
    --primary-blue: #1e3a5f;
    --accent-gold: #d4a574;
    --accent-copper: #b87333;
    --text-dark: #1a1a1a;
    --text-medium: #4a4a4a;
    --text-light: #6b6b6b;
    --background-light: #f8f9fa;
    --background-white: #ffffff;
    --border-color: #e0e0e0;
    --gradient-primary: linear-gradient(135deg, #0a1929 0%, #1e3a5f 100%);
    --gradient-accent: linear-gradient(135deg, #d4a574 0%, #b87333 100%);
    --gradient-overlay: linear-gradient(135deg, rgba(10, 25, 41, 0.85) 0%, rgba(30, 58, 95, 0.75) 100%);
    
    /* Typography */
    --font-primary: 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
    --font-headings: 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* Border Radius - 2025 Trend: Larger, Softer Corners */
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-xl: 32px;
    
    /* Shadows - 2025 Trend: Layered, Soft Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.16);
    --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.20);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

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

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

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

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

ul {
    list-style: none;
}

/* =============================================
   Typography
   ============================================= */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-headings);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
    color: var(--primary-dark);
}

h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
    letter-spacing: -0.02em;
}

h2 {
    font-size: clamp(1.75rem, 4vw, 2.75rem);
    letter-spacing: -0.01em;
}

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

h4 {
    font-size: clamp(1.25rem, 2.5vw, 1.5rem);
}

p {
    margin-bottom: var(--spacing-sm);
    color: var(--text-medium);
    font-size: 1.0625rem;
}

/* =============================================
   Container & Layout
   ============================================= */
.container {
    width: 100%;
    max-width: 1320px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

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

.section-header p {
    font-size: 1.125rem;
}

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

/* =============================================
   Header Navigation
   ============================================= */
.site-header {
    background: var(--background-white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: var(--transition-base);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) 0;
    position: relative;
}

.logo a {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-dark);
    letter-spacing: -0.01em;
}

.main-nav ul {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
}

.main-nav a {
    color: var(--text-medium);
    font-weight: 500;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    transition: var(--transition-base);
}

.main-nav a:hover {
    color: var(--primary-blue);
    background: var(--background-light);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.mobile-menu-toggle span {
    width: 28px;
    height: 3px;
    background: var(--primary-dark);
    border-radius: 2px;
    transition: var(--transition-base);
}

/* =============================================
   Hero Section - 2025 Trend: Immersive, Layered
   ============================================= */
.hero-section {
    position: relative;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    color: var(--background-white);
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.hero-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-overlay);
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 900px;
    padding: var(--spacing-lg) var(--spacing-md);
}

.hero-content h1,
.hero-content p {
    color: var(--background-white);
    text-shadow: 0 2px 16px rgba(0, 0, 0, 0.3);
}

.hero-content h1 {
    margin-bottom: var(--spacing-md);
    animation: fadeInUp 0.8s ease;
}

.hero-content p {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
    opacity: 0.95;
}

.hero-secondary {
    min-height: 400px;
}

/* =============================================
   Cards & Grid Layouts - 2025 Trend: Glassmorphism
   ============================================= */
.services-grid,
.products-grid,
.about-features,
.infrastructure-grid,
.team-grid,
.certifications-grid,
.solutions-grid,
.requirements-grid,
.data-grid,
.conditions-grid,
.flexibility-grid,
.integration-grid,
.departments-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-md);
}

.service-card,
.product-card,
.feature-card,
.infrastructure-card,
.team-card,
.certification-card,
.solution-card,
.requirement-card,
.data-card,
.condition-card,
.flexibility-card,
.integration-card,
.department-card {
    background: var(--background-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
    position: relative;
    overflow: hidden;
}

.service-card:hover,
.product-card:hover,
.feature-card:hover,
.infrastructure-card:hover,
.solution-card:hover,
.requirement-card:hover,
.data-card:hover,
.condition-card:hover,
.flexibility-card:hover,
.integration-card:hover,
.department-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.service-card img,
.product-card img,
.feature-card img,
.infrastructure-card img,
.team-card img,
.solution-card img,
.requirement-card img,
.data-card img,
.condition-card img,
.flexibility-card img,
.integration-card img,
.department-card img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-sm);
}

.service-card h3,
.product-card h3,
.feature-card h3,
.infrastructure-card h3,
.team-card h3,
.solution-card h3,
.requirement-card h3,
.data-card h3,
.condition-card h3,
.flexibility-card h3,
.integration-card h3,
.department-card h3 {
    color: var(--primary-blue);
    margin-bottom: var(--spacing-sm);
}

.service-card ul,
.product-card ul,
.solution-card ul,
.department-card ul {
    margin: var(--spacing-sm) 0;
    padding-left: var(--spacing-md);
}

.service-card ul li,
.product-card ul li,
.solution-card ul li,
.department-card ul li {
    margin-bottom: var(--spacing-xs);
    color: var(--text-medium);
    position: relative;
    padding-left: var(--spacing-sm);
}

.service-card ul li::before,
.product-card ul li::before,
.solution-card ul li::before {
    content: "•";
    color: var(--accent-gold);
    font-weight: bold;
    position: absolute;
    left: 0;
}

.service-pricing,
.product-specs {
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 2px solid var(--border-color);
}

.service-pricing span,
.product-specs h4 {
    font-weight: 700;
    color: var(--accent-copper);
    font-size: 1.25rem;
}

.pricing-note {
    font-size: 0.9rem;
    color: var(--text-light);
    margin-top: var(--spacing-xs);
}

.service-icon {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    width: 50px;
    height: 50px;
    background: var(--gradient-accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: var(--background-white);
    font-size: 1.125rem;
}

/* =============================================
   Statistics Section
   ============================================= */
.statistics-section {
    background: var(--gradient-primary);
    color: var(--background-white);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
}

.stat-card {
    text-align: center;
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.stat-card img {
    width: 100%;
    height: 160px;
    object-fit: cover;
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-sm);
    opacity: 0.9;
}

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--accent-gold);
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    font-size: 1.125rem;
    opacity: 0.9;
}

/* =============================================
   Timeline Section
   ============================================= */
.timeline {
    position: relative;
    padding: var(--spacing-md) 0;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--gradient-accent);
    transform: translateX(-50%);
}

.timeline-item {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    position: relative;
}

.timeline-item:nth-child(even) {
    direction: rtl;
}

.timeline-item:nth-child(even) .timeline-content {
    direction: ltr;
}

.timeline-item img {
    width: 100%;
    height: 280px;
    object-fit: cover;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.timeline-content {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.timeline-date {
    display: inline-block;
    background: var(--gradient-accent);
    color: var(--background-white);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-sm);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    width: fit-content;
}

/* =============================================
   Process Steps
   ============================================= */
.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

.process-step {
    background: var(--background-white);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    position: relative;
    text-align: center;
}

.process-step img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
}

.step-number {
    position: absolute;
    top: var(--spacing-sm);
    left: var(--spacing-sm);
    width: 60px;
    height: 60px;
    background: var(--gradient-accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--background-white);
    box-shadow: var(--shadow-md);
}

/* =============================================
   FAQ Section
   ============================================= */
.faq-list {
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    background: var(--background-white);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    box-shadow: var(--shadow-sm);
    border-left: 4px solid var(--accent-gold);
}

.faq-item h3 {
    color: var(--primary-blue);
    margin-bottom: var(--spacing-sm);
    font-size: 1.25rem;
}

.faq-item p {
    color: var(--text-medium);
    line-height: 1.7;
}

/* =============================================
   Contact Form - 2025 Trend: Modern Inputs
   ============================================= */
.contact-section {
    background: var(--background-light);
}

.contact-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-lg);
}

.contact-form-wrapper {
    background: var(--background-white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

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

.contact-info-wrapper img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    border-radius: var(--radius-lg);
}

.contact-details,
.contact-info-box {
    background: var(--background-white);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

.contact-details h3,
.contact-info-box h3 {
    color: var(--primary-blue);
    margin-bottom: var(--spacing-md);
}

.contact-details p,
.contact-info-box p {
    margin-bottom: var(--spacing-sm);
    line-height: 1.8;
}

.contact-detail {
    margin-bottom: var(--spacing-md);
}

.contact-detail h4 {
    color: var(--primary-blue);
    font-size: 1rem;
    margin-bottom: var(--spacing-xs);
}

.contact-detail .note {
    font-size: 0.9rem;
    color: var(--text-light);
    font-style: italic;
}

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

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

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: var(--spacing-xs);
    font-size: 0.95rem;
}

.form-group input,
.form-group textarea,
.form-group select {
    padding: var(--spacing-sm) var(--spacing-md);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-family: var(--font-primary);
    font-size: 1rem;
    transition: var(--transition-base);
    background: var(--background-white);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 4px rgba(30, 58, 95, 0.1);
}

.form-group.checkbox {
    flex-direction: row;
    align-items: flex-start;
    gap: var(--spacing-sm);
}

.form-group.checkbox input {
    width: 20px;
    height: 20px;
    margin-top: 2px;
}

.form-group.checkbox label {
    margin-bottom: 0;
    font-weight: 400;
    color: var(--text-medium);
}

.submit-btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--gradient-accent);
    color: var(--background-white);
    border: none;
    border-radius: var(--radius-md);
    font-size: 1.125rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-base);
    box-shadow: var(--shadow-md);
}

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

/* =============================================
   Tables
   ============================================= */
.comparison-table {
    overflow-x: auto;
    background: var(--background-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: var(--spacing-md);
}

.comparison-table img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
}

table {
    width: 100%;
    border-collapse: collapse;
}

th, td {
    padding: var(--spacing-sm) var(--spacing-md);
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

th {
    background: var(--primary-dark);
    color: var(--background-white);
    font-weight: 600;
}

tr:hover {
    background: var(--background-light);
}

/* =============================================
   Team Cards
   ============================================= */
.team-card img {
    width: 100%;
    height: 280px;
    object-fit: cover;
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-sm);
}

.team-member-1-position,
.team-member-2-position,
.team-member-3-position,
.team-member-4-position,
[id*="position"],
[id*="member"] + p {
    color: var(--accent-copper);
    font-weight: 600;
    font-size: 1rem;
    margin-bottom: var(--spacing-sm);
}

/* =============================================
   Case Studies
   ============================================= */
.case-study {
    background: var(--background-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    margin-bottom: var(--spacing-lg);
}

.case-study img {
    width: 100%;
    height: 320px;
    object-fit: cover;
}

.case-content {
    padding: var(--spacing-lg);
}

.case-content h3 {
    color: var(--primary-blue);
    margin-bottom: var(--spacing-md);
}

.case-details {
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 2px solid var(--border-color);
}

.case-details h4 {
    color: var(--accent-copper);
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

/* =============================================
   Emergency Section
   ============================================= */
.emergency-section {
    background: linear-gradient(135deg, #8b0000 0%, #dc143c 100%);
    color: var(--background-white);
}

.emergency-section .container {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-lg);
    align-items: center;
}

.emergency-section img {
    width: 100%;
    height: 350px;
    object-fit: cover;
    border-radius: var(--radius-lg);
}

.emergency-box {
    background: rgba(255, 255, 255, 0.15);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    border: 2px solid rgba(255, 255, 255, 0.3);
    text-align: center;
    margin: var(--spacing-md) 0;
    backdrop-filter: blur(10px);
}

.emergency-phone {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--background-white);
    margin: var(--spacing-sm) 0;
}

.emergency-section h2,
.emergency-section h3,
.emergency-section h4,
.emergency-section p {
    color: var(--background-white);
}

.emergency-list {
    padding-left: var(--spacing-md);
}

.emergency-list li {
    margin-bottom: var(--spacing-xs);
    position: relative;
    padding-left: var(--spacing-md);
}

.emergency-list li::before {
    content: "⚠";
    position: absolute;
    left: 0;
    color: #ffd700;
}

/* =============================================
   Response Times Grid
   ============================================= */
.response-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.response-card {
    background: var(--background-white);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border-left: 4px solid var(--accent-gold);
}

.response-card h3 {
    color: var(--primary-blue);
    margin-bottom: var(--spacing-sm);
}

.response-card p:first-of-type {
    font-weight: 700;
    color: var(--accent-copper);
    font-size: 1.125rem;
    margin-bottom: var(--spacing-sm);
}

/* =============================================
   Footer
   ============================================= */
.site-footer {
    background: var(--primary-dark);
    color: var(--background-white);
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

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

.footer-column h3,
.footer-column h4 {
    color: var(--accent-gold);
    margin-bottom: var(--spacing-md);
}

.footer-column p,
.footer-column li {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: var(--spacing-sm);
}

.footer-column a {
    color: rgba(255, 255, 255, 0.8);
    transition: var(--transition-base);
}

.footer-column a:hover {
    color: var(--accent-gold);
}

.footer-column ul li {
    margin-bottom: var(--spacing-xs);
}

.footer-contact .icon {
    display: inline-block;
    margin-right: var(--spacing-xs);
    vertical-align: middle;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    padding-top: var(--spacing-md);
    text-align: center;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-xs);
}

/* =============================================
   Policies Container
   ============================================= */
.policies-container {
    min-height: 60vh;
    padding: var(--spacing-xl) 0;
}

/* =============================================
   Workflow Steps
   ============================================= */
.workflow-steps {
    display: grid;
    gap: var(--spacing-lg);
}

.workflow-step {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: var(--spacing-md);
    background: var(--background-white);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.workflow-step img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--radius-md);
}

.step-indicator {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

.step-number {
    background: var(--gradient-accent);
    color: var(--background-white);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-sm);
    font-weight: 700;
}

.step-duration {
    color: var(--text-light);
    font-style: italic;
}

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

/* =============================================
   Responsive Design - Mobile First
   ============================================= */

/* Tablets */
@media (max-width: 992px) {
    :root {
        --spacing-lg: 3rem;
        --spacing-xl: 4rem;
    }
    
    .services-grid,
    .products-grid,
    .infrastructure-grid,
    .solutions-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
    }
    
    .timeline::before {
        left: 20px;
    }
    
    .timeline-item {
        grid-template-columns: 1fr;
        padding-left: 60px;
    }
    
    .timeline-item:nth-child(even) {
        direction: ltr;
    }
    
    .workflow-step {
        grid-template-columns: 1fr;
    }
    
    .workflow-step img {
        height: 250px;
    }
    
    .emergency-section .container {
        grid-template-columns: 1fr;
    }
}

/* Mobile */
@media (max-width: 768px) {
    :root {
        --spacing-md: 1.5rem;
        --spacing-lg: 2rem;
        --spacing-xl: 3rem;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .main-nav {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--background-white);
        box-shadow: var(--shadow-lg);
        max-height: 0;
        overflow: hidden;
        transition: var(--transition-base);
    }
    
    .main-nav.active {
        max-height: 500px;
    }
    
    .main-nav ul {
        flex-direction: column;
        padding: var(--spacing-md);
        gap: 0;
    }
    
    .main-nav li {
        width: 100%;
        border-bottom: 1px solid var(--border-color);
    }
    
    .main-nav a {
        display: block;
        padding: var(--spacing-sm) 0;
    }
    
    .hero-section {
        min-height: 400px;
    }
    
    .services-grid,
    .products-grid,
    .about-features,
    .infrastructure-grid,
    .team-grid,
    .solutions-grid,
    .requirements-grid,
    .data-grid,
    .conditions-grid,
    .flexibility-grid,
    .integration-grid,
    .departments-grid,
    .process-steps {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .response-grid {
        grid-template-columns: 1fr;
    }
    
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.75rem;
    }
}

/* Small Mobile */
@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .hero-content {
        padding: var(--spacing-md) var(--spacing-sm);
    }
    
    .service-card,
    .product-card,
    .solution-card {
        padding: var(--spacing-sm);
    }
}