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

:root {
    --primary-blue: #0EA5E9;
    --light-blue: #E0F2FE;
    --dark-blue: #0284C7;
    --text-dark: #1E293B;
    --text-light: #64748B;
    --white: #FFFFFF;
    --gray-bg: #F8FAFC;
}

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

/* Header */
header {
    background: linear-gradient(135deg, var(--primary-blue), var(--dark-blue));
    color: var(--white);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo h1 {
    font-size: 1.5rem;
    font-weight: 700;
}

.logo p {
    font-size: 0.85rem;
    opacity: 0.9;
}

nav {
    display: flex;
    gap: 2rem;
}

nav a {
    color: var(--white);
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    position: relative;
    transition: all 0.3s ease;
}

nav a::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--white);
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

nav a:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-2px);
}

nav a:hover::before {
    width: 70%;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--white);
    font-size: 1.5rem;
    cursor: pointer;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--light-blue), var(--white));
    padding: 4rem 1rem;
    text-align: center;
}

.hero h2 {
    font-size: 2.5rem;
    color: var(--dark-blue);
    margin-bottom: 1rem;
}

.hero p {
    font-size: 1.2rem;
    color: var(--text-light);
    max-width: 700px;
    margin: 0 auto 2rem;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    padding: 0.875rem 2rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
    display: inline-block;
}

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

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

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

.btn-secondary:hover {
    background: var(--light-blue);
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 3rem 1rem;
}

/* Section Styles */
.section {
    margin-bottom: 4rem;
}

.section-title {
    font-size: 2rem;
    color: var(--dark-blue);
    margin-bottom: 2rem;
    text-align: center;
}

/* Cards Grid */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.card {
    background: var(--white);
    border-radius: 12px;
    padding: 2rem;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    transition: all 0.3s;
    border: 1px solid var(--light-blue);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 15px rgba(14, 165, 233, 0.2);
}

.card-icon {
    font-size: 2.5rem;
    color: var(--primary-blue);
    margin-bottom: 1rem;
}

.card h3 {
    color: var(--dark-blue);
    margin-bottom: 0.5rem;
    font-size: 1.3rem;
}

.card p {
    color: var(--text-light);
    margin-bottom: 1rem;
}

.card-badge {
    display: inline-block;
    background: var(--light-blue);
    color: var(--primary-blue);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

/* Notes Section */
.notes-item {
    background: var(--white);
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 1rem;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}

.notes-info h4 {
    color: var(--dark-blue);
    margin-bottom: 0.5rem;
}

.notes-info p {
    color: var(--text-light);
    font-size: 0.9rem;
}

.price {
    font-size: 1.5rem;
    color: var(--primary-blue);
    font-weight: 700;
}

/* News Section */
.news-item {
    background: var(--white);
    border-left: 4px solid var(--primary-blue);
    padding: 1.5rem;
    margin-bottom: 1rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.news-date {
    color: var(--primary-blue);
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.news-item h4 {
    color: var(--dark-blue);
    margin-bottom: 0.5rem;
}

/* Footer */
footer {
    background: var(--dark-blue);
    color: var(--white);
    padding: 3rem 1rem 1rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3 {
    margin-bottom: 1rem;
    color: var(--light-blue);
}

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

.footer-section li {
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: var(--white);
    text-decoration: none;
    opacity: 0.9;
}

.footer-section a:hover {
    opacity: 1;
    color: var(--light-blue);
}

.social-links {
    display: flex;
    gap: 1rem;
    font-size: 1.5rem;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.1);
    opacity: 0.8;
}

/* Mobile Menu */
.mobile-nav {
    display: none;
    position: fixed;
    top: 0;
    left: -100%;
    width: 80%;
    max-width: 300px;
    height: 100vh;
    background: var(--white);
    box-shadow: 2px 0 10px rgba(0,0,0,0.1);
    transition: left 0.3s;
    z-index: 2000;
    padding: 2rem;
}

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

.mobile-nav a {
    display: block;
    color: var(--dark-blue);
    padding: 1rem 0;
    text-decoration: none;
    border-bottom: 1px solid var(--light-blue);
}

.mobile-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    z-index: 1500;
}

.mobile-overlay.active {
    display: block;
}

/* Responsive */
@media (max-width: 768px) {
    nav {
        display: none;
    }

    .mobile-menu-btn {
        display: block;
    }

    .mobile-nav {
        display: block;
    }

    .hero h2 {
        font-size: 1.8rem;
    }

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

    .notes-item {
        flex-direction: column;
        text-align: center;
    }

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

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

.fade-in {
    animation: fadeIn 0.6s ease-out;
}