:root {
    --color-background: #FFFFFF;
    --color-surface: #F5F5F7;
    --color-text-primary: #1A1A1A;
    --color-text-secondary: #555555;
    --color-accent-primary: #002FA7;
    --color-accent-secondary: #FF4F00;
    --color-border: #E5E5E5;
    --font-heading: 'Playfair Display', serif;
    --font-body: 'Manrope', sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background-color: var(--color-background);
    color: var(--color-text-primary);
    line-height: 1.6;
}

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

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

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

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

@media (min-width: 768px) {
    .container {
        padding: 0 48px;
    }
}

/* ==================== 
   Header 
   ==================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    transition: box-shadow 0.3s ease;
}

.header.scrolled {
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
}

.header-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

@media (min-width: 768px) {
    .header-container {
        padding: 0 48px;
    }
}

.logo {
    display: flex;
    flex-direction: column;
}

.logo-text {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-accent-primary);
    letter-spacing: -0.02em;
}

.logo-tagline {
    font-size: 0.7rem;
    color: var(--color-text-secondary);
    letter-spacing: 0.02em;
    margin-top: -2px;
}

.advertorial {
    display: none;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.2em;
    color: #999;
}

@media (min-width: 768px) {
    .advertorial {
        display: block;
    }
}

.header-buttons {
    display: flex;
    gap: 12px;
}

.btn-primary {
    background-color: var(--color-text-primary);
    color: white;
    padding: 10px 24px;
    border: none;
    border-radius: 50px;
    font-family: var(--font-body);
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    cursor: pointer;
    transition: background-color 0.3s ease, transform 0.2s ease;
}

.btn-primary:hover {
    background-color: var(--color-accent-secondary);
    transform: translateY(-2px);
}

.btn-outline {
    background-color: transparent;
    color: var(--color-text-primary);
    padding: 10px 24px;
    border: 1px solid var(--color-border);
    border-radius: 50px;
    font-family: var(--font-body);
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    cursor: pointer;
    transition: background-color 0.3s ease, border-color 0.3s ease;
    display: none;
}

@media (min-width: 640px) {
    .btn-outline {
        display: block;
    }
}

.btn-outline:hover {
    background-color: var(--color-surface);
    border-color: var(--color-text-primary);
}

/* ==================== 
   Hero Section 
   ==================== */
.hero {
    position: relative;
    min-height: 85vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

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

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, rgba(0,0,0,0.5) 0%, rgba(0,0,0,0) 70%);
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
    width: 100%;
}

@media (min-width: 768px) {
    .hero-content {
        padding: 0 48px;
    }
}

.hero-title {
    font-size: 3rem;
    color: white;
    margin-bottom: 16px;
    animation: fadeInUp 0.8s ease forwards;
}

@media (min-width: 768px) {
    .hero-title {
        font-size: 4.5rem;
    }
}

.hero-subtitle {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.9);
    max-width: 500px;
    animation: fadeInUp 0.8s ease 0.2s forwards;
    opacity: 0;
}

@media (min-width: 768px) {
    .hero-subtitle {
        font-size: 1.25rem;
    }
}

/* ==================== 
   Articles Section 
   ==================== */
.articles-section {
    padding: 80px 0;
    background: white;
}

@media (min-width: 768px) {
    .articles-section {
        padding: 120px 0;
    }
}

.section-header {
    margin-bottom: 48px;
}

.section-label {
    display: block;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--color-accent-secondary);
    margin-bottom: 12px;
}

.section-title {
    font-size: 2.5rem;
}

@media (min-width: 768px) {
    .section-title {
        font-size: 3rem;
    }
}

.articles-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
}

@media (min-width: 768px) {
    .articles-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 48px;
    }
}

@media (min-width: 1024px) {
    .articles-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .article-card.featured {
        grid-column: span 2;
    }
}

.article-card {
    cursor: pointer;
    transition: transform 0.5s cubic-bezier(0.25, 0.1, 0.25, 1);
}

.article-card:hover {
    transform: translateY(-8px);
}

.article-image {
    aspect-ratio: 4/3;
    overflow: hidden;
    border-radius: 4px;
    margin-bottom: 16px;
}

.article-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(30%);
    transition: transform 0.7s cubic-bezier(0.25, 0.1, 0.25, 1), filter 0.5s ease;
}

.article-card:hover .article-image img {
    transform: scale(1.08);
    filter: grayscale(0%);
}

.article-content {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.article-date {
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-accent-secondary);
}

.article-title {
    font-size: 1.25rem;
    transition: color 0.3s ease;
}

@media (min-width: 768px) {
    .article-title {
        font-size: 1.5rem;
    }
}

.article-card:hover .article-title {
    color: var(--color-accent-primary);
}

.article-excerpt {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    line-height: 1.7;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ==================== 
   Footer 
   ==================== */
.footer {
    background: white;
    border-top: 1px solid var(--color-border);
    padding: 64px 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 48px;
}

@media (min-width: 768px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

.footer-logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-accent-primary);
    display: block;
    margin-bottom: 24px;
}

.footer-contact {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    line-height: 1.8;
}

.footer-contact .company-name {
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: 8px;
}

.footer-contact a {
    transition: color 0.3s ease;
}

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

.footer-disclaimer h4 {
    font-family: var(--font-body);
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 16px;
}

.footer-disclaimer p {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    line-height: 1.8;
}

.footer-bottom {
    margin-top: 48px;
    padding-top: 32px;
    border-top: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    gap: 16px;
    align-items: center;
}

@media (min-width: 768px) {
    .footer-bottom {
        flex-direction: row;
        justify-content: space-between;
    }
}

.footer-bottom p {
    font-size: 0.75rem;
    color: #999;
}

.footer-bottom a {
    font-size: 0.75rem;
    color: var(--color-text-secondary);
    transition: color 0.3s ease;
}

.footer-bottom a:hover {
    color: var(--color-accent-primary);
}

/* ==================== 
   Modal 
   ==================== */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: white;
    border-radius: 8px;
    padding: 40px;
    width: 100%;
    max-width: 450px;
    position: relative;
    transform: translateY(20px);
    transition: transform 0.3s ease;
}

.modal-overlay.active .modal {
    transform: translateY(0);
}

.modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: #999;
    cursor: pointer;
    transition: color 0.3s ease;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-close:hover {
    color: var(--color-text-primary);
}

.modal-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 8px;
}

.modal-subtitle {
    text-align: center;
    color: var(--color-text-secondary);
    margin-bottom: 32px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 8px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    font-family: var(--font-body);
    font-size: 0.95rem;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-accent-primary);
    box-shadow: 0 0 0 3px rgba(0, 47, 167, 0.1);
}

.form-group textarea {
    resize: none;
}

.form-checkbox {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 24px;
}

.form-checkbox input {
    width: 20px;
    height: 20px;
    margin-top: 2px;
    cursor: pointer;
    accent-color: var(--color-text-primary);
}

.form-checkbox label {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    cursor: pointer;
}

.btn-submit {
    width: 100%;
    padding: 14px 24px;
    background: var(--color-text-primary);
    color: white;
    border: none;
    font-family: var(--font-body);
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.btn-submit:hover {
    background: var(--color-accent-secondary);
}

/* ==================== 
   Toast 
   ==================== */
.toast {
    position: fixed;
    top: 100px;
    left: 50%;
    transform: translateX(-50%) translateY(-20px);
    background: var(--color-text-primary);
    color: white;
    padding: 16px 32px;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    z-index: 3000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s ease;
}

.toast.success {
    background: #10b981;
}

.toast.error {
    background: #ef4444;
}

.toast.active {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

/* ==================== 
   Animations 
   ==================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

/* ==================== 
   Article Page Styles 
   ==================== */
.article-page-header {
    padding-top: 120px;
    padding-bottom: 48px;
}

.article-page-date {
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-accent-secondary);
    margin-bottom: 16px;
}

.article-page-title {
    font-size: 2.5rem;
    line-height: 1.15;
    margin-bottom: 24px;
}

@media (min-width: 768px) {
    .article-page-title {
        font-size: 3.5rem;
    }
}

.article-page-excerpt {
    font-size: 1.1rem;
    color: var(--color-text-secondary);
    line-height: 1.7;
    max-width: 800px;
}

.article-page-image {
    max-width: 1000px;
    margin: 0 auto 48px;
    padding: 0 24px;
}

@media (min-width: 768px) {
    .article-page-image {
        padding: 0 48px;
    }
}

.article-page-image img {
    width: 100%;
    border-radius: 4px;
}

.article-page-content {
    max-width: 720px;
    margin: 0 auto;
    padding: 0 24px 80px;
}

@media (min-width: 768px) {
    .article-page-content {
        padding: 0 48px 80px;
    }
}

.article-page-content h2 {
    font-size: 1.75rem;
    margin-top: 48px;
    margin-bottom: 16px;
}

.article-page-content p {
    font-size: 1.1rem;
    color: var(--color-text-secondary);
    line-height: 1.9;
    margin-bottom: 20px;
}

.article-page-content ul {
    margin-bottom: 20px;
    padding-left: 24px;
}

.article-page-content ul li {
    font-size: 1.1rem;
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: 8px;
}

/* ==================== 
   Carousel Section 
   ==================== */
.carousel-section {
    padding: 64px 0;
    background: var(--color-surface);
}

.carousel-title {
    font-size: 2rem;
    margin-bottom: 40px;
}

@media (min-width: 768px) {
    .carousel-title {
        font-size: 2.5rem;
    }
}

.carousel-container {
    position: relative;
}

.carousel-track {
    display: flex;
    gap: 24px;
    overflow-x: auto;
    scroll-behavior: smooth;
    scrollbar-width: none;
    -ms-overflow-style: none;
    padding-bottom: 16px;
}

.carousel-track::-webkit-scrollbar {
    display: none;
}

.carousel-item {
    flex: 0 0 300px;
    cursor: pointer;
    transition: transform 0.3s ease;
}

@media (min-width: 768px) {
    .carousel-item {
        flex: 0 0 350px;
    }
}

.carousel-item:hover {
    transform: translateY(-4px);
}

.carousel-item .article-image {
    aspect-ratio: 4/3;
    margin-bottom: 12px;
}

.carousel-item .article-title {
    font-size: 1.1rem;
}

.carousel-nav {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-top: 32px;
}

.carousel-btn {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: white;
    border: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background-color 0.3s ease, border-color 0.3s ease, color 0.3s ease;
    font-size: 1.25rem;
}

.carousel-btn:hover {
    background: var(--color-text-primary);
    border-color: var(--color-text-primary);
    color: white;
}

/* ==================== 
   Subscribe CTA Section 
   ==================== */
.subscribe-cta {
    padding: 80px 0;
    background: var(--color-surface);
    text-align: center;
}

.subscribe-cta h2 {
    font-size: 2rem;
    margin-bottom: 16px;
}

@media (min-width: 768px) {
    .subscribe-cta h2 {
        font-size: 2.5rem;
    }
}

.subscribe-cta p {
    color: var(--color-text-secondary);
    margin-bottom: 32px;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.subscribe-cta form {
    max-width: 400px;
    margin: 0 auto;
}

.subscribe-cta .form-group input {
    background: white;
}

.subscribe-cta .form-checkbox {
    justify-content: center;
}

.subscribe-cta .btn-submit {
    width: auto;
    padding: 14px 40px;
    border-radius: 50px;
}

/* ==================== 
   Privacy Page Styles 
   ==================== */
.privacy-content {
    max-width: 720px;
    margin: 0 auto;
    padding: 120px 24px 80px;
}

@media (min-width: 768px) {
    .privacy-content {
        padding: 140px 48px 80px;
    }
}

.privacy-content h1 {
    font-size: 2.5rem;
    margin-bottom: 32px;
}

@media (min-width: 768px) {
    .privacy-content h1 {
        font-size: 3rem;
    }
}

.privacy-content h2 {
    font-size: 1.5rem;
    margin-top: 40px;
    margin-bottom: 16px;
}

.privacy-content p {
    font-size: 1rem;
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin-bottom: 16px;
}

.privacy-content ul {
    margin-bottom: 16px;
    padding-left: 24px;
}

.privacy-content ul li {
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: 8px;
}