/* ============================================
   GLOBAL STYLES & RESET
   ============================================ */

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

:root {
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --accent-color: #e74c3c;
    --light-bg: #ecf0f1;
    --dark-text: #2c3e50;
    --light-text: #ffffff;
    --border-radius: 12px;
    --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--dark-text);
    background-color: #ffffff;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ============================================
   NAVIGATION BAR
   ============================================ */

.navbar {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(44, 62, 80, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    transition: var(--transition);
}

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

.logo {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 2px;
}

.logo h1 {
    font-size: 24px;
    font-weight: 700;
    color: var(--light-text);
    letter-spacing: 0.5px;
}

.logo-subtitle {
    font-size: 12px;
    color: var(--secondary-color);
    font-weight: 600;
    letter-spacing: 1px;
}

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

.nav-link {
    color: var(--light-text);
    text-decoration: none;
    font-weight: 500;
    font-size: 16px;
    transition: var(--transition);
    position: relative;
}

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

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

.cta-nav {
    background: var(--secondary-color);
    padding: 10px 20px;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.cta-nav:hover {
    background: var(--accent-color);
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(52, 152, 219, 0.3);
}

/* ============================================
   HERO SECTION
   ============================================ */

.hero {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    margin-top: 0;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    z-index: 1;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(44, 62, 80, 0.7) 0%, rgba(52, 152, 219, 0.5) 100%);
    z-index: 2;
    opacity: 0.85;
}

.hero-content {
    position: relative;
    z-index: 3;
    text-align: center;
    color: var(--light-text);
    max-width: 700px;
    padding: 40px;
    animation: fadeInUp 1s ease-out;
}

.hero-title {
    font-size: 56px;
    font-weight: 700;
    margin-bottom: 20px;
    text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.4);
    letter-spacing: -1px;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 24px;
    margin-bottom: 40px;
    text-shadow: 1px 1px 4px rgba(0, 0, 0, 0.3);
    font-weight: 300;
}

.cta-button {
    display: inline-block;
    padding: 16px 40px;
    background: var(--secondary-color);
    color: var(--light-text);
    text-decoration: none;
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: 18px;
    transition: var(--transition);
    box-shadow: 0 8px 24px rgba(52, 152, 219, 0.4);
    border: none;
    cursor: pointer;
}

.cta-button:hover {
    background: var(--accent-color);
    transform: scale(1.05);
    box-shadow: 0 12px 32px rgba(231, 76, 60, 0.4);
}

/* ============================================
   SECTION STYLES
   ============================================ */

section {
    padding: 80px 0;
}

.section-title {
    font-size: 42px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 50px;
    color: var(--dark-text);
    position: relative;
    padding-bottom: 20px;
}

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

.section-subtitle {
    text-align: center;
    font-size: 18px;
    color: #7f8c8d;
    margin-bottom: 40px;
}

/* ============================================
   ABOUT SECTION
   ============================================ */

.about {
    background: linear-gradient(135deg, #f8f9fa 0%, #ecf0f1 100%);
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.about-content p {
    font-size: 18px;
    line-height: 1.8;
    margin-bottom: 20px;
    color: #555;
}

/* ============================================
   SERVICES SECTION
   ============================================ */

.services {
    background: #ffffff;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    margin-top: 50px;
}

.service-card {
    background: #ffffff;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: var(--transition);
    border: 1px solid #ecf0f1;
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(52, 152, 219, 0.15);
}

.service-image {
    width: 100%;
    height: 250px;
    overflow: hidden;
    background: linear-gradient(135deg, var(--secondary-color), var(--accent-color));
}

.service-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.service-card:hover .service-image img {
    transform: scale(1.08);
}

.service-card h3 {
    font-size: 24px;
    font-weight: 600;
    padding: 25px 25px 10px;
    color: var(--dark-text);
}

.service-card p {
    padding: 0 25px 25px;
    color: #666;
    font-size: 16px;
    line-height: 1.7;
}

/* ============================================
   PORTFOLIO SECTION
   ============================================ */

.portfolio {
    background: linear-gradient(135deg, #f8f9fa 0%, #ecf0f1 100%);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.portfolio-item {
    position: relative;
    overflow: hidden;
    border-radius: var(--border-radius);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
    aspect-ratio: 1;
    cursor: pointer;
    transition: var(--transition);
}

.portfolio-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.portfolio-item:hover img {
    transform: scale(1.1);
}

.portfolio-item::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(52, 152, 219, 0.3);
    opacity: 0;
    transition: var(--transition);
}

.portfolio-item:hover::after {
    opacity: 1;
}

/* ============================================
   WHY US SECTION
   ============================================ */

.why-us {
    background: #ffffff;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.benefit-card {
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
    padding: 40px 30px;
    border-radius: var(--border-radius);
    text-align: center;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
    transition: var(--transition);
    border: 1px solid #ecf0f1;
}

.benefit-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 32px rgba(52, 152, 219, 0.12);
    background: linear-gradient(135deg, #f0f8ff 0%, #f8f9fa 100%);
}

.benefit-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--secondary-color), var(--accent-color));
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    font-weight: bold;
    margin: 0 auto 20px;
    box-shadow: 0 4px 12px rgba(52, 152, 219, 0.3);
}

.benefit-card h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--dark-text);
}

.benefit-card p {
    color: #666;
    font-size: 16px;
    line-height: 1.6;
}

/* ============================================
   CONTACT SECTION
   ============================================ */

.contact {
    background: linear-gradient(135deg, #f8f9fa 0%, #ecf0f1 100%);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    margin-top: 50px;
}

.contact-form-container h3,
.contact-info-container h3 {
    font-size: 28px;
    font-weight: 600;
    margin-bottom: 30px;
    color: var(--dark-text);
}

.contact-form {
    background: white;
    padding: 40px;
    border-radius: var(--border-radius);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--dark-text);
    font-size: 15px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #ecf0f1;
    border-radius: var(--border-radius);
    font-family: inherit;
    font-size: 16px;
    transition: var(--transition);
    background: #f8f9fa;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--secondary-color);
    background: white;
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

.submit-button {
    width: 100%;
    padding: 14px 20px;
    background: linear-gradient(135deg, var(--secondary-color), var(--accent-color));
    color: white;
    border: none;
    border-radius: var(--border-radius);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 4px 16px rgba(52, 152, 219, 0.3);
}

.submit-button:hover {
    transform: scale(1.02);
    box-shadow: 0 8px 24px rgba(52, 152, 219, 0.4);
}

.success-message {
    background: #d4edda;
    border: 2px solid #28a745;
    color: #155724;
    padding: 30px;
    border-radius: var(--border-radius);
    text-align: center;
}

.success-message h4 {
    font-size: 24px;
    margin-bottom: 10px;
}

.contact-info {
    background: white;
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
    margin-bottom: 30px;
}

.contact-info p {
    margin-bottom: 15px;
    font-size: 16px;
    line-height: 1.8;
}

.contact-info a {
    color: var(--secondary-color);
    text-decoration: none;
    transition: var(--transition);
    font-weight: 600;
}

.contact-info a:hover {
    color: var(--accent-color);
}

.map-container {
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}

/* ============================================
   FOOTER
   ============================================ */

.footer {
    background: var(--primary-color);
    color: var(--light-text);
    padding: 50px 0 20px;
}

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

.footer-section h4 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--secondary-color);
}

.footer-section p {
    color: #bdc3c7;
    line-height: 1.8;
    margin-bottom: 10px;
}

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

.footer-section ul li {
    margin-bottom: 10px;
}

.footer-section a {
    color: #bdc3c7;
    text-decoration: none;
    transition: var(--transition);
}

.footer-section a:hover {
    color: var(--secondary-color);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 20px;
    text-align: center;
    color: #95a5a6;
}

/* ============================================
   ERROR MESSAGE STYLING
   ============================================ */

.error-message {
    color: #ff6b6b;
    margin-top: 5px;
    font-size: 14px;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-5px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

@media (max-width: 768px) {
    .nav-menu {
        gap: 15px;
    }

    .nav-link {
        font-size: 14px;
    }

    .hero-title {
        font-size: 36px;
    }

    .hero-subtitle {
        font-size: 18px;
    }

    .section-title {
        font-size: 32px;
    }

    .services-grid,
    .benefits-grid {
        grid-template-columns: 1fr;
    }

    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: 30px;
    }

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

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

@media (max-width: 480px) {
    .nav-container {
        height: auto;
        flex-direction: column;
        padding: 15px 20px;
        gap: 15px;
    }

    .nav-menu {
        flex-direction: column;
        gap: 10px;
        width: 100%;
    }

    .nav-link {
        display: block;
        padding: 10px 0;
    }

    .hero-title {
        font-size: 28px;
    }

    .hero-subtitle {
        font-size: 16px;
    }

    .cta-button {
        padding: 12px 30px;
        font-size: 16px;
    }

    .section-title {
        font-size: 24px;
        margin-bottom: 30px;
    }

    .contact-form {
        padding: 25px;
    }

    section {
        padding: 50px 0;
    }
}