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

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

:root {
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --accent-color: #e74c3c;
    --text-dark: #333;
    --text-light: #666;
    --bg-light: #f8f9fa;
    --white: #ffffff;
    --border-color: #e0e0e0;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

body {
    font-family: 'Avenir', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--white);
    overflow-x: hidden;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

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

/* ===================================
   HEADER & NAVIGATION
   =================================== */

.header {
    background-color: var(--white);
    padding: 20px 0;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

.logo-section {
    display: flex;
    align-items: center;
    gap: 15px;
}

.logo-img {
    width: 80px;
    height: 80px;
    object-fit: cover;
    border-radius: 4px;
}

.logo-text h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 5px;
}

.logo-text h1 a:hover {
    color: var(--secondary-color);
}

.subtitle {
    font-size: 0.9rem;
    color: var(--text-light);
    font-weight: 300;
}

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

.nav-list a {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-dark);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 10px 0;
    position: relative;
}

.nav-list a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--secondary-color);
    transition: width 0.3s ease;
}

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

.nav-list a.active {
    color: var(--secondary-color);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--primary-color);
    transition: all 0.3s ease;
}

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

.hero {
    position: relative;
    background-image: url('assets/hero-bg.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--white);
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(44, 62, 80, 0.8), rgba(52, 152, 219, 0.7));
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    padding: 60px 20px;
}

.hero-image {
    width: 200px;
    height: 200px;
    margin: 0 auto 30px;
    border-radius: 50%;
    overflow: hidden;
    border: 5px solid var(--white);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
}

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

.hero-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 10px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: 1.2rem;
    font-weight: 300;
    letter-spacing: 2px;
    margin-bottom: 30px;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
}

.social-links {
    display: flex;
    gap: 20px;
    justify-content: center;
    margin-top: 30px;
}

.social-links a {
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.social-links a:hover {
    background-color: var(--white);
    transform: translateY(-5px);
}

.social-links img {
    width: 20px;
    height: 20px;
    filter: brightness(0) invert(1);
}

.social-links a:hover img {
    filter: none;
}

/* ===================================
   WELCOME SECTION
   =================================== */

.welcome {
    padding: 80px 20px;
    background-color: var(--white);
}

.welcome h2 {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.tagline {
    text-align: center;
    font-size: 1.2rem;
    color: var(--text-light);
    margin-bottom: 40px;
}

.cta-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    margin-bottom: 60px;
}

.btn {
    display: inline-block;
    padding: 15px 40px;
    font-size: 1rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-radius: 4px;
    transition: all 0.3s ease;
    cursor: pointer;
}

.btn-primary {
    background-color: var(--secondary-color);
    color: var(--white);
    border: 2px solid var(--secondary-color);
}

.btn-primary:hover {
    background-color: transparent;
    color: var(--secondary-color);
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(52, 152, 219, 0.3);
}

.intro-text {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.intro-text p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-light);
}

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

.footer {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 60px 20px 30px;
}

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

.footer-section h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--secondary-color);
}

.footer-section p {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.8);
}

.footer-section a {
    color: rgba(255, 255, 255, 0.8);
}

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

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

.footer-social a {
    width: 35px;
    height: 35px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.footer-social a:hover {
    background-color: var(--secondary-color);
    transform: translateY(-3px);
}

.footer-social img {
    width: 18px;
    height: 18px;
    filter: brightness(0) invert(1);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
}

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

@media (max-width: 768px) {
    .header .container {
        flex-direction: column;
        gap: 20px;
    }

    .mobile-menu-toggle {
        display: flex;
        position: absolute;
        right: 20px;
        top: 30px;
    }

    .nav {
        width: 100%;
    }

    .nav-list {
        flex-direction: column;
        gap: 15px;
        display: none;
        width: 100%;
        padding: 20px 0;
    }

    .nav-list.active {
        display: flex;
    }

    .hero {
        min-height: 500px;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .welcome h2 {
        font-size: 2rem;
    }

    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 80%;
        max-width: 300px;
        text-align: center;
    }

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

@media (max-width: 480px) {
    .logo-img {
        width: 60px;
        height: 60px;
    }

    .logo-text h1 {
        font-size: 1.2rem;
    }

    .subtitle {
        font-size: 0.8rem;
    }

    .hero-image {
        width: 150px;
        height: 150px;
    }

    .hero-title {
        font-size: 1.6rem;
    }

    .welcome {
        padding: 50px 20px;
    }

    .intro-text p {
        font-size: 1rem;
    }
}

/* ===================================
   ANIMATIONS
   =================================== */

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-content,
.welcome {
    animation: fadeIn 1s ease-out;
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}