/* CSS Variables */
:root {
    --primary-color: #1a365d;
    --secondary-color: #2c5282;
    --accent-color: #4a90e2;
    --text-dark: #1a202c;
    --text-light: #718096;
    --bg-light: #f7fafc;
    --bg-white: #ffffff;
    --border-color: #e2e8f0;
    --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);
}

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

html {
    scroll-behavior: smooth;
}

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

/* Add top padding to non-home pages */
body:not(:has(.hero)) .content-section:first-of-type {
    padding-top: 8rem;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: #ffffff;
    z-index: 1000;
    box-shadow: var(--shadow-sm);
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    font-family: 'Space Grotesk', sans-serif;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-decoration: none;
    display: flex;
    align-items: center;
}

.logo-image {
    height: 50px;
    width: auto;
}

body:has(.hero) .logo-image {
    height: 50px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 3rem;
    align-items: center;
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    font-size: 1.1rem;
    transition: color 0.3s ease;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--accent-color);
}

.btn-contact {
    padding: 0.6rem 1.5rem;
    background: var(--accent-color);
    color: white !important;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.btn-contact:hover {
    background: var(--primary-color);
    transform: translateY(-2px);
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--text-dark);
    transition: 0.3s;
    border-radius: 2px;
}

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

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

.hero-carousel-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1s ease-in-out;
}

.hero-carousel-slide.active {
    opacity: 1;
}

.hero-carousel-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-carousel-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.4);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    width: 100%;
    padding: 2rem 0;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.hero-title {
    font-size: clamp(1.75rem, 5vw, 4.5rem);
    font-weight: 700;
    font-family: 'Space Grotesk', sans-serif;
    margin-bottom: 1.5rem;
    line-height: 1.2;
    color: #ffffff;
    text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.7);
    text-align: center;
    margin-left: auto;
    margin-right: auto;
    padding: 0 1rem;
}

.hero-subtitle {
    font-size: 1.4rem;
    margin-bottom: 1rem;
    color: #ffffff;
    opacity: 0.95;
    font-weight: 400;
    text-shadow: 1px 1px 4px rgba(0, 0, 0, 0.6);
}

.hero-subtitle-large {
    font-size: 2rem;
    margin-bottom: 2rem;
    color: #ffffff;
    opacity: 0.95;
    font-weight: 500;
    text-shadow: 1px 1px 4px rgba(0, 0, 0, 0.6);
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 4rem;
    justify-content: center;
}

.btn {
    padding: 1rem 2.5rem;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-block;
    font-size: 1.1rem;
}

.btn-primary {
    background: var(--accent-color);
    color: white;
    box-shadow: 0 4px 16px rgba(74, 144, 226, 0.3);
}

.btn-primary:hover {
    background: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(74, 144, 226, 0.4);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.15);
    color: white;
    border: 2px solid white;
    backdrop-filter: blur(10px);
}

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

.hero-stats {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 3rem;
    margin-top: 3rem;
}

.stat-item {
    text-align: center;
    padding: 0 1rem;
    position: relative;
}

.stat-item:not(:last-child)::after {
    content: '';
    position: absolute;
    right: -1.5rem;
    top: 50%;
    transform: translateY(-50%);
    width: 1px;
    height: 40px;
    background: rgba(255, 255, 255, 0.3);
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: #ffffff;
    text-shadow: 2px 2px 6px rgba(0, 0, 0, 0.7);
}

.stat-label {
    font-size: 1rem;
    color: #ffffff;
    opacity: 0.9;
    text-shadow: 1px 1px 4px rgba(0, 0, 0, 0.6);
}

/* Features Section */
.features {
    padding: 8rem 0;
    background: var(--bg-white);
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: 3rem;
    font-weight: 700;
    font-family: 'Space Grotesk', sans-serif;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.section-header p {
    font-size: 1.25rem;
    color: var(--text-light);
    max-width: 700px;
    margin: 0 auto;
}

.features-with-image {
    display: flex;
    gap: 4rem;
    align-items: center;
}

.features-grid {
    flex: 1;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.features-image {
    flex: 0 0 45%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.features-image img {
    width: 100%;
    height: auto;
    max-width: 500px;
    border-radius: 1rem;
    box-shadow: var(--shadow-md);
}

.feature-card {
    padding: 2rem;
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}

.feature-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
    color: white;
}

.feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: 0.75rem;
    color: var(--text-dark);
    font-family: 'Space Grotesk', sans-serif;
}

.feature-card p {
    color: var(--text-light);
    line-height: 1.6;
    font-size: 0.95rem;
}

/* Applications Section */
.applications {
    padding: 8rem 0;
    background: var(--bg-light);
}

.applications-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2.5rem;
}

.application-card {
    background: var(--bg-white);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
}

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

.application-image {
    height: 280px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-light);
}

.application-image img {
    width: 100%;
    height: 280px;
    object-fit: contain;
}

.application-content {
    padding: 2rem;
    flex: 1;
}

.application-content h3 {
    font-size: 1.75rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
    font-family: 'Space Grotesk', sans-serif;
}

.application-content p {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

/* Footer */
.footer {
    background: var(--primary-color);
    color: white;
    padding: 4rem 0 2rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 4rem;
    margin-bottom: 3rem;
}

.footer-column h3,
.footer-column h4 {
    margin-bottom: 1.5rem;
    font-family: 'Space Grotesk', sans-serif;
}

.footer-logo {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    font-family: Arial, sans-serif;
    color: #ffffff;
}

.footer-column p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.8;
    margin-bottom: 1.5rem;
    font-size: 1.05rem;
}

.footer-column h4 {
    font-size: 1.2rem;
    color: #ffffff;
}

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

.footer-column ul li {
    margin-bottom: 0.75rem;
}

.footer-column ul li a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color 0.3s ease;
    font-size: 1.05rem;
}

.footer-column ul li a:hover {
    color: white;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.social-links a:hover {
    background: var(--accent-color);
    transform: translateY(-2px);
}

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

.footer-bottom p {
    color: rgba(255, 255, 255, 0.6);
}

.footer-links {
    display: flex;
    gap: 2rem;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.6);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: white;
}

/* Responsive Design */
@media (max-width: 968px) {
    .container {
        padding: 0 1.5rem;
    }

    .hamburger {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: var(--bg-white);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: var(--shadow-md);
        padding: 2rem 0;
        gap: 1.5rem;
    }

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

    .hero {
        min-height: 85vh;
        padding-top: 70px;
    }

    .hero-title {
        font-size: clamp(1.5rem, 6vw, 2.5rem);
        line-height: 1.3;
        margin-bottom: 1.25rem;
    }

    .hero-subtitle-large {
        font-size: 1.3rem;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
        width: 100%;
        padding: 0 1rem;
        margin-bottom: 3rem;
    }

    .hero-buttons .btn {
        width: 100%;
        max-width: 300px;
        text-align: center;
    }

    .hero-stats {
        flex-direction: column;
        gap: 1.5rem;
        margin-top: 2rem;
    }

    .stat-item:not(:last-child)::after {
        display: none;
    }

    .stat-number {
        font-size: 1.75rem;
    }

    .stat-label {
        font-size: 0.95rem;
    }

    .features-with-image {
        flex-direction: column;
    }

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

    .features-image {
        flex: 0 0 auto;
        width: 100%;
    }

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

    .application-image {
        height: 250px;
    }

    .application-image img {
        height: 250px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

    .section-header h2 {
        font-size: 2rem;
    }

    .logo-image {
        height: 35px;
    }

    body:has(.hero) .logo-image {
        height: 35px;
    }
}

@media (max-width: 640px) {
    .container {
        padding: 0 1rem;
    }

    .hero {
        min-height: 80vh;
    }

    .hero-title {
        font-size: 1.5rem;
        line-height: 1.3;
        padding: 0 0.5rem;
    }

    .hero-content {
        padding: 1rem 0;
    }

    .hero-buttons {
        margin-bottom: 2rem;
        gap: 1rem;
    }

    .btn {
        padding: 0.875rem 2rem;
        font-size: 1rem;
    }

    .hero-stats {
        gap: 1rem;
        margin-top: 1.5rem;
    }

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

    .features {
        padding: 4rem 0;
    }

    .section-header h2 {
        font-size: 1.75rem;
    }

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

    .applications {
        padding: 4rem 0;
    }

    .footer {
        padding: 3rem 0 1.5rem;
    }
}