:root {
    /* Colors */
    --primary-color: #007bff; /* Bright blue for actions */
    --primary-dark: #0056b3; /* Darker primary for hover */
    --secondary-color: #6c757d; /* Muted gray for secondary actions */
    --secondary-dark: #5a6268; /* Darker secondary for hover */
    --accent-color: #28a745; /* Green for success/highlights */
    --accent-dark: #218838; /* Darker accent */
    --text-dark: #333; /* Main body text */
    --text-light: #f4f4f4; /* Text on dark backgrounds */
    --bg-light: #ffffff; /* Light background */
    --bg-dark: #1a202c; /* Dark section background */
    --bg-dark-variant: #2d3748; /* Slightly lighter dark background */
    --border-color: #e0e0e0; /* Light border color */
    --gradient-hero-start: rgba(0, 0, 0, 0.7);
    --gradient-hero-end: rgba(0, 0, 0, 0.4);
    --gradient-primary: linear-gradient(135deg, #007bff 0%, #00c6ff 100%);
    --gradient-secondary: linear-gradient(135deg, #6c757d 0%, #a8b0b8 100%);
    --gradient-tertiary: linear-gradient(135deg, #28a745 0%, #20c997 100%);
    --gradient-light: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    --gradient-dark: linear-gradient(135deg, #1a202c 0%, #2d3748 100%);

    /* Typography */
    --font-heading: 'Poppins', sans-serif;
    --font-body: 'Montserrat', sans-serif;
    --base-font-size: 16px;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 4rem;

    /* Border Radius */
    --border-radius-sm: 0.25rem;
    --border-radius-md: 0.5rem;
    --border-radius-lg: 0.75rem;

    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --shadow-card-hover: 0 15px 30px rgba(0, 0, 0, 0.15);

    /* Transitions */
    --transition-speed: 0.3s;
    --transition-ease: ease-in-out;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: var(--base-font-size);
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg-light);
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

/* Accessibility for nav-open */
body.nav-open {
    overflow: hidden;
}

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

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

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--text-dark);
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
}

h1 { font-size: 3rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.25rem; }

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

ul {
    list-style: none;
}

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

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

.max-w-lg {
    max-width: 768px;
}

.mx-auto {
    margin-left: auto;
    margin-right: auto;
}

.mb-8 {
    margin-bottom: var(--spacing-xxl);
}

.mt-4 {
    margin-top: var(--spacing-lg);
}

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

.highlight-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: 700;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-md);
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: all var(--transition-speed) var(--transition-ease);
    text-align: center;
    white-space: nowrap;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.1);
    transform: translateX(-100%);
    transition: transform var(--transition-speed) var(--transition-ease);
    z-index: -1;
}

.btn:hover:before {
    transform: translateX(0);
}

.btn i {
    margin-right: var(--spacing-xs);
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--text-light);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    box-shadow: 0 8px 15px rgba(0, 123, 255, 0.3);
    transform: translateY(-2px);
}

.btn-secondary {
    background: var(--gradient-secondary);
    color: var(--text-light);
    box-shadow: var(--shadow-md);
}

.btn-secondary:hover {
    box-shadow: 0 8px 15px rgba(108, 117, 125, 0.3);
    transform: translateY(-2px);
}

.btn-tertiary {
    background: var(--gradient-tertiary);
    color: var(--text-light);
    box-shadow: var(--shadow-md);
}

.btn-tertiary:hover {
    box-shadow: 0 8px 15px rgba(40, 167, 69, 0.3);
    transform: translateY(-2px);
}

.btn-lg {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1.1rem;
    border-radius: var(--border-radius-lg);
}

.btn-sm {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.9rem;
    border-radius: var(--border-radius-sm);
}

.btn-block {
    display: block;
    width: 100%;
}

/* Header & Navigation */
.header {
    background-color: var(--bg-dark-variant);
    padding: var(--spacing-sm) 0;
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-light);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    position: relative;
    z-index: 2; /* Ensure logo is above nav on mobile */
}

.nav-menu {
    display: flex;
    gap: var(--spacing-lg);
}

.nav-link {
    color: var(--text-light);
    font-weight: 500;
    padding: var(--spacing-xs) 0;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 3px;
    background: var(--gradient-primary);
    border-radius: 2px;
    transition: width var(--transition-speed) var(--transition-ease);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.btn-track-sm {
    display: none; /* Hidden on desktop, shown on mobile nav */
}

.btn-track-lg {
    margin-left: var(--spacing-xl);
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--gradient-tertiary);
    color: var(--text-light);
    border-radius: var(--border-radius-md);
    font-weight: 600;
    box-shadow: var(--shadow-sm);
}
.btn-track-lg:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 10px rgba(40, 167, 69, 0.2);
}

.nav-toggle {
    display: none; /* Hidden on desktop */
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 21px;
    cursor: pointer;
    background: transparent;
    border: none;
    padding: 0;
    position: relative;
    z-index: 2; /* Ensure toggle is above nav on mobile */
}

.nav-toggle .bar {
    width: 100%;
    height: 3px;
    background-color: var(--text-light);
    border-radius: 5px;
    transition: all var(--transition-speed) var(--transition-ease);
}

.nav-toggle.active .bar:nth-child(1) {
    transform: translateY(9px) rotate(45deg);
}

.nav-toggle.active .bar:nth-child(2) {
    opacity: 1;
}

.nav-toggle.active .bar:nth-child(3) {
    transform: translateY(-9px) rotate(-45deg);
}


/* Hero Section */
.hero-section {
    position: relative;
    height: 80vh;
    min-height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-light);
    text-align: center;
    background: url('images/image_6.jpg') no-repeat center center/cover;
    /* Add a dark overlay for text readability and elegance */
    isolation: isolate; /* Creates a new stacking context for :before */
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-hero-start);
    background: linear-gradient(135deg, var(--gradient-hero-start) 0%, var(--gradient-hero-end) 100%);
    z-index: -1;
}

.hero-content {
    max-width: 900px;
    z-index: 1;
    transform: translateY(0); /* For reveal animation */
    transition: transform 0.8s ease-out, opacity 0.8s ease-out;
}

.hero-section.reveal .hero-content {
    transform: translateY(0);
    opacity: 1;
}

.hero-title {
    font-size: 4.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--text-light);
    text-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: 1.5rem;
    font-weight: 400;
    margin-bottom: var(--spacing-xl);
    opacity: 1;.9;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-actions {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
}

.hero-scroll-indicator {
    position: absolute;
    bottom: var(--spacing-xl);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    color: var(--text-light);
    font-size: 0.9rem;
    opacity: 1;.7;
}

.hero-scroll-indicator i {
    font-size: 1.5rem;
    animation: bounce 2s infinite;
}

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

/* Common Section Styling */
.common-section {
    padding: var(--spacing-xxl) 0;
    position: relative;
    overflow: hidden; /* For reveal animations */
}

.section-title {
    font-size: 2.8rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    position: relative;
}

.section-description {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-lg);
    opacity: 1;.9;
}

/* About Section */
.about-section {
    background-color: var(--bg-light);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xxl);
    align-items: center;
}

.about-image img {
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    object-fit: cover;
    width: 100%;
    height: 400px; /* Fixed height for image consistency */
}

/* Services Section */
.services-section {
    background-color: var(--gradient-light); /* Use a light gradient */
}

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

.service-card {
    background-color: var(--bg-light);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: transform var(--transition-speed) var(--transition-ease), box-shadow var(--transition-speed) var(--transition-ease);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

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

.service-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.service-card h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-dark);
}

.service-card p {
    font-size: 0.95rem;
    color: var(--secondary-color);
    flex-grow: 1; /* Makes paragraphs take available space */
}

.service-card .read-more {
    display: inline-flex;
    align-items: center;
    margin-top: var(--spacing-md);
    color: var(--accent-color);
    font-weight: 600;
}

.service-card .read-more i {
    margin-left: var(--spacing-xs);
    transition: transform var(--transition-speed) var(--transition-ease);
}

.service-card .read-more:hover i {
    transform: translateX(5px);
}

/* Why Us Section */
.why-us-section {
    background-color: var(--bg-dark-variant);
    color: var(--text-light);
}

.why-us-section .section-title,
.why-us-section .section-description {
    color: var(--text-light);
}

.why-us-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xxl);
    align-items: center;
}

.why-us-image img {
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    object-fit: cover;
    width: 100%;
    height: 400px;
}

.feature-list {
    display: grid;
    gap: var(--spacing-lg);
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    background-color: rgba(255, 255, 255, 0.08);
    padding: var(--spacing-md);
    border-radius: var(--border-radius-md);
    transition: background-color var(--transition-speed) var(--transition-ease);
}

.feature-item:hover {
    background-color: rgba(255, 255, 255, 0.15);
}

.feature-item h4 {
    color: var(--text-light);
    margin-bottom: var(--spacing-xs);
    font-size: 1.2rem;
}

.feature-item p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9rem;
}

.feature-icon {
    font-size: 2rem;
    color: var(--accent-color);
    background: var(--gradient-tertiary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    min-width: 2rem; /* Ensure icon doesn't shrink */
    margin-top: 0.25rem; /* Align with text better */
}

/* Solutions Section */
.solutions-section {
    background-color: var(--bg-light);
}

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

.solution-card {
    background-color: var(--bg-light);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    transition: transform var(--transition-speed) var(--transition-ease), box-shadow var(--transition-speed) var(--transition-ease);
    display: flex;
    flex-direction: column;
}

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

.solution-card img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    border-top-left-radius: var(--border-radius-lg);
    border-top-right-radius: var(--border-radius-lg);
    transition: transform 0.5s ease;
}

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

.solution-card .card-content {
    padding: var(--spacing-lg);
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    align-items: flex-start; /* Align text to left */
    text-align: left;
}

.solution-card h3 {
    font-size: 1.35rem;
    margin-bottom: var(--spacing-sm);
}

.solution-card p {
    font-size: 0.95rem;
    color: var(--secondary-color);
    margin-bottom: var(--spacing-md);
    flex-grow: 1;
}

/* Partners Section */
.partners-section {
    background: var(--gradient-dark);
    color: var(--text-light);
}

.partners-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-xl);
}

.partner-card {
    background-color: rgba(255, 255, 255, 0.08);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: transform var(--transition-speed) var(--transition-ease), background-color var(--transition-speed) var(--transition-ease);
}

.partner-card:hover {
    transform: translateY(-8px);
    background-color: rgba(255, 255, 255, 0.15);
}

.partner-icon {
    font-size: 3rem;
    color: var(--accent-color);
    background: var(--gradient-tertiary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: var(--spacing-md);
}

.partner-card h3 {
    color: var(--text-light);
    margin-bottom: var(--spacing-sm);
    font-size: 1.5rem;
}

.partner-card p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.95rem;
    margin-bottom: var(--spacing-md);
}

/* CTA Section */
.cta-section {
    background: var(--gradient-primary); /* Use a strong primary gradient */
    color: var(--text-light);
    text-align: center;
    padding: var(--spacing-xxl) 0;
}

.cta-section .section-title,
.cta-section .section-description {
    color: var(--text-light);
}

.cta-section .highlight-text {
    background: var(--gradient-light); /* Highlight with light color on primary bg */
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.cta-actions {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xl);
    flex-wrap: wrap; /* Allow wrapping on smaller screens */
}

.cta-actions .btn-primary {
    background: var(--gradient-tertiary); /* Use accent gradient for main CTA button */
    box-shadow: 0 8px 20px rgba(40, 167, 69, 0.4);
}
.cta-actions .btn-primary:hover {
    box-shadow: 0 10px 25px rgba(40, 167, 69, 0.5);
}

.cta-actions .btn-secondary {
    background-color: rgba(255, 255, 255, 0.15);
    border: 2px solid rgba(255, 255, 255, 0.3);
    box-shadow: none;
    color: var(--text-light);
}
.cta-actions .btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.25);
    transform: translateY(-2px);
}

/* Contact Section */
.contact-section {
    background: var(--gradient-light);
}

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

.contact-info {
    padding: var(--spacing-lg);
    background-color: var(--bg-light);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
}

.contact-info .section-title {
    margin-bottom: var(--spacing-sm);
}

.contact-info .section-description {
    margin-bottom: var(--spacing-xl);
    color: var(--secondary-color);
}

.info-list {
    list-style: none;
    padding: 0;
    margin-bottom: var(--spacing-xl);
}

.info-list li {
    display: flex;
    align-items: center;
    margin-bottom: var(--spacing-md);
    font-size: 1.05rem;
    color: var(--text-dark);
}

.info-list li i {
    font-size: 1.2rem;
    color: var(--primary-color);
    margin-right: var(--spacing-md);
    min-width: 1.2rem; /* Prevent icon collapse */
    text-align: center;
}

.social-links {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
}

.social-links a {
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background-color: var(--border-color);
    color: var(--primary-color);
    font-size: 1.2rem;
    transition: all var(--transition-speed) var(--transition-ease);
    box-shadow: var(--shadow-sm);
}

.social-links a:hover {
    background-color: var(--primary-color);
    color: var(--text-light);
    box-shadow: var(--shadow-md);
    transform: translateY(-3px) rotate(5deg);
}

.contact-form-wrapper {
    background-color: var(--bg-light);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-xl);
}

.contact-form h3 {
    font-size: 1.8rem;
    margin-bottom: var(--spacing-xl);
    text-align: center;
}

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

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

.form-group input[type="text"],
.form-group input[type="email"],
.form-group textarea {
    width: 100%;
    padding: var(--spacing-sm);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: all var(--transition-speed) var(--transition-ease);
    background-color: #fcfcfc;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.2);
    background-color: var(--bg-light);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* Footer */
.footer {
    background-color: var(--bg-dark);
    color: rgba(255, 255, 255, 0.8);
    padding: var(--spacing-xxl) 0 var(--spacing-md);
    font-size: 0.9rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xxl);
}

.footer-col h3,
.footer-col h4 {
    color: var(--text-light);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    font-size: 1.1rem;
}

.footer-col p {
    margin-bottom: var(--spacing-sm);
}

.footer-col ul {
    padding: 0;
    list-style: none;
}

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

.footer-col ul li a {
    color: rgba(255, 255, 255, 0.7);
    transition: color var(--transition-speed) var(--transition-ease);
}

.footer-col ul li a:hover {
    color: var(--primary-color);
}

.footer-col .social-links a {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--text-light);
    margin-right: var(--spacing-sm);
}

.footer-col .social-links a:hover {
    background-color: var(--primary-color);
    color: var(--text-light);
    transform: translateY(-3px) rotate(5deg);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-md);
    text-align: center;
    color: rgba(255, 255, 255, 0.6);
}

/* Reveal Animations */
.reveal {
    opacity: 1;
    transform: translateY(20px);
    transition: opacity 0.8s var(--transition-ease), transform 0.8s var(--transition-ease);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* Specific reveal directions */
.reveal.fade-left {
    transform: translateX(-20px);
}
.reveal.fade-left.active {
    transform: translateX(0);
}

.reveal.fade-right {
    transform: translateX(20px);
}
.reveal.fade-right.active {
    transform: translateX(0);
}

.reveal.fade-up {
    transform: translateY(20px);
}
.reveal.fade-up.active {
    transform: translateY(0);
}

/* Delayed animations */
.reveal.delay-1 { transition-delay: 0.1s; }
.reveal.delay-2 { transition-delay: 0.2s; }
.reveal.delay-3 { transition-delay: 0.3s; }
.reveal.delay-4 { transition-delay: 0.4s; }
.reveal.delay-5 { transition-delay: 0.5s; }
.reveal.delay-6 { transition-delay: 0.6s; }
.reveal.delay-7 { transition-delay: 0.7s; }
.reveal.delay-8 { transition-delay: 0.8s; }


/* Responsive Design */
@media (min-width: 769px) {
    .about-grid, .why-us-grid, .contact-grid {
        grid-template-columns: 1fr 1fr;
    }

    .about-image {
        order: 1; /* Image first on desktop */
    }
    .about-content {
        order: 2;
    }

    .why-us-image {
        order: 2; /* Content first on desktop */
    }
    .why-us-content {
        order: 1;
    }
}

@media (max-width: 1024px) {
    .hero-title {
        font-size: 3.5rem;
    }
    .hero-subtitle {
        font-size: 1.25rem;
    }
    .section-title {
        font-size: 2.2rem;
    }
    .section-description {
        font-size: 1rem;
    }
    .nav-menu {
        gap: var(--spacing-md);
    }
    .btn-lg {
        padding: var(--spacing-sm) var(--spacing-xl);
        font-size: 1rem;
    }
}

@media (max-width: 768px) {
    h1 { font-size: 2.8rem; }
    h2 { font-size: 2rem; }
    h3 { font-size: 1.5rem; }

    .nav-toggle {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background-color: var(--bg-dark-variant);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        transform: translateX(100%);
        transition: transform 0.4s var(--transition-ease);
        z-index: 1;
        gap: var(--spacing-lg);
        opacity: 1; /* Start with opacity 0 */
        pointer-events: none; /* Disable interaction when hidden */
    }

    .nav-menu.active {
        transform: translateX(0%);
        opacity: 1;
        pointer-events: auto; /* Enable interaction when active */
    }

    .nav-menu .nav-link {
        font-size: 1.8rem;
        padding: var(--spacing-sm) 0;
        opacity: 1;
        transform: translateY(20px);
        transition: opacity 0.4s var(--transition-ease), transform 0.4s var(--transition-ease);
        color: var(--text-light); /* Ensure links are visible on dark background */
    }

    .nav-menu.active .nav-link {
        opacity: 1;
        transform: translateY(0);
        transition-delay: calc(var(--_i, 0.1s) * 0.1s); /* Staggered animation */
    }

    /* Staggered animation for nav links on mobile */
    .nav-menu.active .nav-link:nth-child(1) { --_i: 1; }
    .nav-menu.active .nav-link:nth-child(2) { --_i: 2; }
    .nav-menu.active .nav-link:nth-child(3) { --_i: 3; }
    .nav-menu.active .nav-link:nth-child(4) { --_i: 4; }
    .nav-menu.active .nav-link:nth-child(5) { --_i: 5; }
    .nav-menu.active .nav-link:nth-child(6) { --_i: 6; }
    .nav-menu.active .nav-link:nth-child(7) { --_i: 7; } /* For track shipment button */


    .nav-menu .btn-track-sm {
        display: block; /* Show track button inside mobile nav */
        margin-top: var(--spacing-lg);
        padding: var(--spacing-md) var(--spacing-xl);
        font-size: 1.2rem;
    }

    .btn-track-lg {
        display: none; /* Hide desktop track button on mobile */
    }

    .hero-section {
        height: 70vh;
        min-height: 450px;
        padding-top: var(--spacing-xl);
    }

    .hero-title {
        font-size: 2.5rem;
    }
    .hero-subtitle {
        font-size: 1.1rem;
    }
    .hero-actions {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    .hero-actions .btn {
        width: 80%;
        max-width: 300px;
        margin: 0 auto;
    }

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

    .about-grid, .why-us-grid, .contact-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
    .about-image, .why-us-image {
        order: unset; /* Reset order for mobile */
    }

    .contact-info, .contact-form-wrapper {
        padding: var(--spacing-lg);
    }

    .solutions-grid, .partners-grid {
        grid-template-columns: 1fr;
    }

    .cta-actions {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    .cta-actions .btn {
        width: 90%;
        max-width: 350px;
        margin: 0 auto;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .footer-col .social-links {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    h1 { font-size: 2.2rem; }
    h2 { font-size: 1.8rem; }
    h3 { font-size: 1.3rem; }
    .hero-title {
        font-size: 2rem;
    }
    .hero-subtitle {
        font-size: 1rem;
    }
    .hero-section {
        padding-top: var(--spacing-lg);
    }
    .section-title {
        font-size: 1.8rem;
    }
    .service-card, .solution-card, .partner-card {
        padding: var(--spacing-lg);
    }
    .footer-col h3, .footer-col h4 {
        margin-top: var(--spacing-lg);
    }
}

/* Visible state helpers */
+ .animate-fade-in-up.visible,
+ .animate-fade-in-left.visible,
+ .animate-fade-in-right.visible,
+ .animate-bounce-y.visible,
+ .section-scroll-animate.visible,
+ .text-animate-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Safe visibility overrides (auto-added) */
:root, html, body, main, header, footer, section, .container, .content {
  opacity: 1 !important;
  visibility: visible !important;
}