/* CSS Variables for Theme */
:root {
    --primary-blue: #004d7a;
    --primary-green: #2d5a27;
    --accent-color: #008cba;
    --text-dark: #333333;
    --text-light: #f4f4f4;
    --bg-light: #f9f9f9;
    --bg-white: #ffffff;
    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Open Sans', sans-serif;
    --transition-speed: 0.3s;
}

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

html {
    scroll-behavior: smooth;
}

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

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

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

/* Typography */
.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--primary-blue);
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background-color: var(--primary-green);
    margin: 10px auto 0;
    border-radius: 2px;
}

/* Buttons */
.cta-button {
    display: inline-block;
    padding: 12px 30px;
    background-color: var(--primary-green);
    color: var(--bg-white);
    font-family: var(--font-heading);
    font-weight: 600;
    border-radius: 30px;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all var(--transition-speed) ease;
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.cta-button:hover {
    background-color: var(--accent-color);
    transform: translateY(-3px);
    box-shadow: 0 6px 12px rgba(0,0,0,0.2);
}

/* Header & Navbar */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    transition: background-color var(--transition-speed) ease, padding var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
    padding: 20px 0;
    background-color: transparent;
}

header.scrolled {
    background-color: rgba(255, 255, 255, 0.95);
    padding: 15px 0;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

header.scrolled .logo,
header.scrolled .nav-links a {
    color: var(--primary-blue);
}

header.scrolled .hamburger .bar {
    background-color: var(--primary-blue);
}

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

.logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--bg-white);
    transition: color var(--transition-speed) ease;
}

.nav-links {
    display: flex;
    gap: 30px;
}

.nav-links a {
    color: var(--bg-white);
    font-weight: 600;
    font-size: 0.95rem;
    text-transform: uppercase;
    transition: color var(--transition-speed) ease;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 0;
    background-color: var(--primary-green);
    transition: width var(--transition-speed) ease;
}

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

.nav-links a:hover, .nav-links a.active {
    color: var(--primary-green);
}

.nav-links a.active::after {
    width: 100%;
}

/* Hamburger Menu */
.hamburger {
    display: none;
    cursor: pointer;
}

.hamburger .bar {
    display: block;
    width: 25px;
    height: 3px;
    margin: 5px auto;
    transition: all 0.3s ease-in-out;
    background-color: var(--bg-white);
}

/* Hero Section */
.hero {
    height: 100vh;
    min-height: 600px;
    background-image: url('./assets/images/hero_bg.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed; /* Parallax effect */
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    text-align: center;
    color: var(--bg-white);
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(rgba(0, 77, 122, 0.4), rgba(0, 0, 0, 0.6));
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    padding: 0 20px;
}

.hero-title {
    font-size: 3.5rem;
    margin-bottom: 20px;
    animation: slideDown 1s ease-out forwards;
    opacity: 0;
    transform: translateY(-30px);
}

.hero-subtitle {
    font-size: 1.2rem;
    margin-bottom: 40px;
    animation: slideUp 1s ease-out 0.3s forwards;
    opacity: 0;
    transform: translateY(30px);
}

.hero .cta-button {
    animation: fadeIn 1s ease-out 0.6s forwards;
    opacity: 0;
}

/* Blog Section */
.blog-section {
    padding: 80px 0;
    background-color: var(--bg-light);
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.blog-card {
    background-color: var(--bg-white);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    transition: transform var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
    display: flex;
    flex-direction: column;
}

.blog-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.15);
}

.card-image {
    height: 220px;
    overflow: hidden;
}

.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

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

.card-content {
    padding: 25px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.card-content h3 {
    font-size: 1.25rem;
    margin-bottom: 15px;
    color: var(--primary-blue);
}

.card-content p {
    color: #666;
    margin-bottom: 20px;
    flex-grow: 1;
}

.read-more {
    align-self: flex-start;
    font-family: var(--font-heading);
    font-weight: 600;
    color: var(--primary-green);
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 1px;
    position: relative;
    transition: color var(--transition-speed) ease;
}

.read-more::after {
    content: '→';
    margin-left: 5px;
    transition: margin-left var(--transition-speed) ease;
}

.read-more:hover {
    color: var(--accent-color);
}

.read-more:hover::after {
    margin-left: 10px;
}

/* Newsletter Section */
.newsletter {
    background-color: var(--primary-blue);
    color: var(--bg-white);
    padding: 60px 0;
    text-align: center;
}

.newsletter h2 {
    font-size: 2rem;
    margin-bottom: 15px;
}

.newsletter p {
    margin-bottom: 30px;
    opacity: 0.9;
}

.newsletter-form {
    display: flex;
    justify-content: center;
    max-width: 500px;
    margin: 0 auto;
    gap: 10px;
}

.newsletter-form input {
    flex-grow: 1;
    padding: 12px 20px;
    border-radius: 30px;
    border: none;
    font-family: var(--font-body);
    font-size: 1rem;
    outline: none;
}

.newsletter-form .cta-button {
    border-radius: 30px;
}

/* Footer */
footer {
    background-color: #1a1a1a;
    color: #ccc;
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand h3 {
    color: var(--bg-white);
    font-size: 1.5rem;
    margin-bottom: 15px;
}

.footer-links h4, .footer-social h4 {
    color: var(--bg-white);
    margin-bottom: 20px;
    font-size: 1.1rem;
}

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

.footer-links a {
    transition: color var(--transition-speed) ease;
}

.footer-links a:hover {
    color: var(--primary-green);
}

.social-icons {
    display: flex;
    gap: 15px;
}

.social-icons a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: #333;
    border-radius: 50%;
    color: var(--bg-white);
    transition: background-color var(--transition-speed) ease, transform var(--transition-speed) ease;
}

.social-icons a:hover {
    background-color: var(--primary-green);
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid #333;
    font-size: 0.9rem;
}

/* Animations */
@keyframes slideDown {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    to {
        opacity: 1;
    }
}

.fade-in {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive Design */
@media (max-width: 992px) {
    .blog-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .hero-title {
        font-size: 2.8rem;
    }
}

@media (max-width: 768px) {
    .hamburger {
        display: block;
    }

    .hamburger.active .bar:nth-child(2) {
        opacity: 0;
    }

    .hamburger.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

    .hamburger.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

    .nav-links {
        position: fixed;
        left: -100%;
        top: 70px;
        gap: 0;
        flex-direction: column;
        background-color: rgba(255, 255, 255, 0.98);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 10px rgba(0,0,0,0.1);
    }

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

    .nav-links li {
        margin: 15px 0;
    }

    .nav-links a {
        color: var(--primary-blue);
        font-size: 1.1rem;
    }
    
    header {
        background-color: rgba(255, 255, 255, 0.95);
        padding: 15px 0;
    }
    
    .logo {
        color: var(--primary-blue);
    }
    
    .hamburger .bar {
        background-color: var(--primary-blue);
    }

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

    .hero-title {
        font-size: 2.2rem;
    }

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

    .social-icons {
        justify-content: center;
    }

    .newsletter-form {
        flex-direction: column;
    }

    .newsletter-form .cta-button {
        width: 100%;
    }
}