/* ============================================
   AERODYNE ENGINEERING SERVICE - STYLESHEET
   Professional Engineering Company Website
   ============================================ */

/* CSS Variables - Color Palette */
:root {
    --primary-blue: #1a4d7a;
    --deep-blue: #0d3a5f;
    --light-blue: #2d6ba0;
    --accent-blue: #4a90c2;
    --white: #ffffff;
    --light-gray: #f5f7fa;
    --medium-gray: #e8ecef;
    --dark-gray: #6c757d;
    --text-dark: #2c3e50;
    --text-light: #5a6c7d;
    
    /* Typography */
    --font-heading: 'Poppins', 'Montserrat', sans-serif;
    --font-body: 'Roboto', 'Open Sans', sans-serif;
    
    /* Spacing */
    --section-padding: 80px 0;
    --container-max-width: 1200px;
    
    /* Transitions */
    --transition-smooth: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--white);
    overflow-x: hidden;
}

.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 20px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-dark);
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 50px;
    color: var(--primary-blue);
    position: relative;
    padding-bottom: 15px;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-blue), var(--accent-blue));
    border-radius: 2px;
}

/* ============================================
   HEADER / HERO SECTION
   ============================================ */
.hero-section {
    background: linear-gradient(135deg, var(--light-gray) 0%, var(--white) 100%);
    background-image: url('static/BG1.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(13, 58, 95, 0.6);
    z-index: 0;
}

/* Navigation */
.navbar {
    position: relative;
    z-index: 100;
    padding: 20px 0;
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

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

.logo-container {
    display: flex;
    align-items: center;
}

.logo {
    height: 90px;
    width: auto;
    max-width: 240px;
    object-fit: contain;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
    align-items: center;
}

.nav-link {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    font-size: 1rem;
    transition: var(--transition-smooth);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-blue);
    transition: var(--transition-smooth);
}

.nav-link:hover {
    color: var(--primary-blue);
}

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

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
}

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

/* Hero Content */
.hero-content {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    z-index: 1;
    padding: 60px 0;
}

.company-name {
    font-size: 3.5rem;
    color: var(--white);
    margin-bottom: 20px;
    font-weight: 700;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.tagline {
    font-size: 1.5rem;
    color: var(--white);
    margin-bottom: 40px;
    font-weight: 400;
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.3);
}

.cta-button {
    display: inline-block;
    padding: 15px 40px;
    background: var(--primary-blue);
    color: var(--white);
    text-decoration: none;
    border-radius: 5px;
    font-weight: 500;
    font-size: 1.1rem;
    transition: var(--transition-smooth);
    box-shadow: 0 4px 15px rgba(26, 77, 122, 0.3);
}

.cta-button:hover {
    background: var(--deep-blue);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(26, 77, 122, 0.4);
}

/* ============================================
   ABOUT SECTION
   ============================================ */
.about-section {
    padding: var(--section-padding);
    background: var(--white);
}

.about-content {
    max-width: 900px;
    margin: 0 auto;
}

.about-text {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-light);
    text-align: center;
}

/* ============================================
   VISION & MISSION SECTION
   ============================================ */
.vision-mission-section {
    padding: var(--section-padding);
    background: var(--light-gray);
}

.vm-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
    max-width: 1000px;
    margin: 0 auto;
}

.vm-card {
    background: var(--white);
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    transition: var(--transition-smooth);
    text-align: center;
}

.vm-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

.vm-image {
    width: 100%;
    height: 220px;
    object-fit: cover;
    border-radius: 8px;
    margin-bottom: 20px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
}

.vm-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, var(--primary-blue), var(--accent-blue));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 2rem;
}

.vm-title {
    font-size: 1.8rem;
    color: var(--primary-blue);
    margin-bottom: 20px;
}

.vm-text {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--text-light);
}

/* ============================================
   DOMAINS SECTION
   ============================================ */
.domains-section {
    padding: var(--section-padding);
    background: var(--white);
}

.domains-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
    max-width: 1100px;
    margin: 0 auto;
}

.domain-card {
    background: var(--light-gray);
    padding: 40px;
    border-radius: 10px;
    border-left: 5px solid var(--primary-blue);
    transition: var(--transition-smooth);
}

.domain-card:hover {
    transform: translateX(5px);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

.domain-header {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 25px;
}

.domain-icon {
    width: 60px;
    height: 60px;
    background: var(--primary-blue);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.8rem;
}

.domain-title {
    font-size: 1.8rem;
    color: var(--primary-blue);
}

.domain-list {
    list-style: none;
}

.domain-list li {
    padding: 12px 0;
    color: var(--text-light);
    font-size: 1rem;
    display: flex;
    align-items: center;
    gap: 12px;
}

.domain-list li i {
    color: var(--accent-blue);
    font-size: 1rem;
}

/* ============================================
   SERVICES SECTION
   ============================================ */
.services-section {
    padding: var(--section-padding);
    background: var(--light-gray);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 30px;
    max-width: 1100px;
    margin: 0 auto;
}

.service-item {
    background: var(--white);
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    transition: var(--transition-smooth);
    box-shadow: 0 3px 15px rgba(0, 0, 0, 0.06);
    border: 2px solid transparent;
    cursor: pointer;
}

.service-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 8px 30px rgba(26, 77, 122, 0.2);
    border-color: var(--primary-blue);
    background: linear-gradient(135deg, var(--white) 0%, var(--light-gray) 100%);
}

.service-item:hover i {
    transform: scale(1.15) rotate(5deg);
    color: var(--accent-blue);
}

.service-item:hover h4 {
    color: var(--primary-blue);
}

.service-item i {
    font-size: 2.5rem;
    color: var(--primary-blue);
    margin-bottom: 20px;
    transition: var(--transition-smooth);
}

.service-item h4 {
    font-size: 1.2rem;
    color: var(--text-dark);
    margin-bottom: 12px;
}

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

/* ============================================
   APPROACH SECTION
   ============================================ */
.approach-section {
    padding: var(--section-padding);
    background: var(--white);
}

.approach-content {
    max-width: 900px;
    margin: 0 auto;
}

.approach-text {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-light);
    text-align: center;
}

.approach-text strong {
    color: var(--primary-blue);
    font-weight: 600;
}

/* ============================================
   CLIENTS SECTION
   ============================================ */
.clients-section {
    padding: var(--section-padding);
    background: var(--light-gray);
}

.clients-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    max-width: 1100px;
    margin: 0 auto;
}

.client-card {
    background: var(--white);
    padding: 35px;
    border-radius: 10px;
    text-align: center;
    transition: var(--transition-smooth);
    box-shadow: 0 3px 15px rgba(0, 0, 0, 0.06);
}

.client-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 25px rgba(0, 0, 0, 0.12);
}

.client-card i {
    font-size: 2.5rem;
    color: var(--primary-blue);
    margin-bottom: 20px;
}

.client-card h4 {
    font-size: 1.3rem;
    color: var(--text-dark);
    margin-bottom: 12px;
}

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

/* ============================================
   WHY CHOOSE US SECTION
   ============================================ */
.why-choose-section {
    padding: var(--section-padding);
    background: var(--white);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    max-width: 1100px;
    margin: 0 auto;
}

.feature-card {
    background: var(--light-gray);
    padding: 35px;
    border-radius: 10px;
    text-align: center;
    transition: var(--transition-smooth);
    border-top: 4px solid var(--primary-blue);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 25px rgba(0, 0, 0, 0.12);
    background: var(--white);
}

.feature-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, var(--primary-blue), var(--accent-blue));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 2rem;
}

.feature-card h4 {
    font-size: 1.3rem;
    color: var(--text-dark);
    margin-bottom: 12px;
}

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

/* ============================================
   COMMITMENT SECTION
   ============================================ */
.commitment-section {
    padding: var(--section-padding);
    background: var(--light-gray);
}

.commitment-content {
    max-width: 1100px;
    margin: 0 auto;
}

.commitment-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.commitment-item {
    background: var(--white);
    padding: 35px;
    border-radius: 10px;
    text-align: center;
    transition: var(--transition-smooth);
    box-shadow: 0 3px 15px rgba(0, 0, 0, 0.06);
}

.commitment-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 25px rgba(0, 0, 0, 0.12);
}

.commitment-item i {
    font-size: 2.5rem;
    color: var(--primary-blue);
    margin-bottom: 20px;
}

.commitment-item h4 {
    font-size: 1.3rem;
    color: var(--text-dark);
    margin-bottom: 12px;
}

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

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background: var(--deep-blue);
    color: var(--white);
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

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

.footer-logo-img {
    height: 90px;
    width: auto;
    max-width: 220px;
    object-fit: contain;
    margin-bottom: 15px;
    filter: brightness(0) invert(1);
}

.footer-tagline {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.8);
    font-style: italic;
}

.footer-title {
    font-size: 1.2rem;
    margin-bottom: 15px;
    color: var(--white);
}

.footer-text {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.95rem;
}

.footer-link {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: var(--transition-smooth);
}

.footer-link:hover {
    color: var(--white);
    text-decoration: underline;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 15px;
}

.social-link {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    text-decoration: none;
    transition: var(--transition-smooth);
    font-size: 1.1rem;
}

.social-link:hover {
    background: var(--accent-blue);
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 968px) {
    .vm-grid {
        grid-template-columns: 1fr;
    }
    
    .domains-grid {
        grid-template-columns: 1fr;
    }
    
    .company-name {
        font-size: 2.5rem;
    }
    
    .tagline {
        font-size: 1.2rem;
    }
}

@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: var(--white);
        width: 100%;
        text-align: center;
        transition: var(--transition-smooth);
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 20px 0;
        gap: 0;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-menu li {
        padding: 15px 0;
        width: 100%;
    }
    
    .nav-link {
        display: block;
        width: 100%;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .company-name {
        font-size: 2rem;
    }
    
    .tagline {
        font-size: 1.1rem;
    }
    
    .services-grid,
    .clients-grid,
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .commitment-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .section-title {
        font-size: 1.8rem;
        margin-bottom: 30px;
    }
    
    .company-name {
        font-size: 1.8rem;
    }
    
    .tagline {
        font-size: 1rem;
    }
    
    .vm-card,
    .domain-card,
    .service-item,
    .client-card,
    .feature-card,
    .commitment-item {
        padding: 25px;
    }
    
    .hero-content {
        padding: 40px 0;
    }
}