/* ============================================
   RESET & BASE STYLES
   ============================================ */

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

:root {
    /* Color Palette - Premium Monotone */
    --color-primary: #0f172a;
    --color-secondary: #1e293b;
    --color-tertiary: #334155;
    --color-text-primary: #0f172a;
    --color-text-secondary: #64748b;
    --color-text-light: #94a3b8;
    --color-bg: #ffffff;
    --color-bg-alt: #f8fafc;
    --color-border: #e2e8f0;
    --color-accent: rgba(15, 23, 42, 0.05);
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-heading: 'Playfair Display', serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;
    --spacing-4xl: 8rem;
    --spacing-5xl: 10rem;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;
    
    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 10px;
    
    /* Container */
    --container-width: 1280px;
    --container-padding: 1.5rem;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 100px;
}

body {
    font-family: var(--font-primary);
    font-size: 16px;
    line-height: 1.7;
    color: var(--color-text-primary);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-base);
}

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

.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.95);
    border-bottom: 1px solid var(--color-border);
    backdrop-filter: blur(10px);
}

.nav__container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.nav__content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem 0;
}

.nav__logo {
    display: flex;
    align-items: center;
    transition: opacity var(--transition-base);
}

.nav__logo:hover {
    opacity: 0.7;
}

.nav__logo-img {
    height: 36px;
    width: auto;
}

.nav__menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
    width: 32px;
    height: 32px;
    justify-content: center;
    align-items: center;
    position: relative;
}

.nav__menu-toggle-line {
    width: 24px;
    height: 2px;
    background-color: var(--color-text-primary);
    transition: all var(--transition-base);
    position: absolute;
}

.nav__menu-toggle-line:nth-child(1) {
    top: 10px;
}

.nav__menu-toggle-line:nth-child(2) {
    top: 15px;
}

.nav__menu-toggle-line:nth-child(3) {
    top: 20px;
}

.nav__menu-toggle--active .nav__menu-toggle-line:nth-child(1) {
    top: 15px;
    transform: rotate(45deg);
}

.nav__menu-toggle--active .nav__menu-toggle-line:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}

.nav__menu-toggle--active .nav__menu-toggle-line:nth-child(3) {
    top: 15px;
    transform: rotate(-45deg);
}

.nav__list {
    display: flex;
    list-style: none;
    gap: var(--spacing-xl);
    align-items: center;
    margin: 0;
    padding: 0;
}

.nav__item {
    margin: 0;
}

.nav__link {
    color: var(--color-text-secondary);
    font-weight: 500;
    font-size: 14px;
    padding: var(--spacing-xs) 0;
    position: relative;
    display: block;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.nav__link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-primary);
    transition: width var(--transition-base);
}

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

.nav__link:hover::after {
    width: 100%;
}

/* ============================================
   HERO SECTION - COMPLETELY REDESIGNED
   ============================================ */

.hero {
    padding: var(--spacing-5xl) 0 var(--spacing-4xl);
    background: linear-gradient(to bottom, var(--color-bg-alt) 0%, var(--color-bg) 100%);
    margin-top: 73px;
}

.hero__container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.hero__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-4xl);
    align-items: center;
}

.hero__text-block {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.hero__label {
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--color-text-secondary);
}

.hero__title {
    font-family: var(--font-heading);
    font-size: clamp(3rem, 7vw, 5.5rem);
    font-weight: 700;
    line-height: 1.05;
    color: var(--color-primary);
    letter-spacing: -0.03em;
    display: flex;
    flex-direction: column;
    gap: 0;
}

.hero__title-line {
    display: block;
}

.hero__title-line--accent {
    color: var(--color-secondary);
}

.hero__description {
    font-size: 18px;
    line-height: 1.8;
    color: var(--color-text-secondary);
    max-width: 500px;
}

.hero__actions {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.hero__cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    border-radius: var(--radius-md);
    font-size: 15px;
    font-weight: 600;
    transition: all var(--transition-base);
    font-family: inherit;
    border: 1px solid transparent;
}

.hero__cta--primary {
    background-color: var(--color-primary);
    color: var(--color-bg);
}

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

.hero__cta--secondary {
    background-color: transparent;
    color: var(--color-primary);
    border-color: var(--color-border);
}

.hero__cta--secondary:hover {
    border-color: var(--color-primary);
    background-color: var(--color-accent);
}

.hero__visual {
    display: flex;
    gap: var(--spacing-xl);
    justify-content: flex-end;
}

.hero__stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--spacing-xl);
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    min-width: 150px;
}

.hero__stat-number {
    font-family: var(--font-heading);
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1;
    margin-bottom: var(--spacing-xs);
}

.hero__stat-label {
    font-size: 13px;
    color: var(--color-text-secondary);
    text-align: center;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ============================================
   OVERVIEW SECTION - COMPLETELY REDESIGNED
   ============================================ */

.overview {
    padding: var(--spacing-5xl) 0;
    background-color: var(--color-bg);
}

.overview__container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.overview__intro {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--spacing-4xl);
}

.overview__heading {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.02em;
}

.overview__lead {
    font-size: 18px;
    line-height: 1.8;
    color: var(--color-text-secondary);
}

.overview__content {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: var(--spacing-4xl);
    align-items: start;
}

.overview__image-block {
    position: sticky;
    top: 120px;
}

.overview__image {
    width: 100%;
    height: auto;
    border-radius: var(--radius-md);
    object-fit: cover;
}

.overview__image-overlay {
    display: none;
}

.overview__text-block {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2xl);
}

.overview__text-item {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    padding-bottom: var(--spacing-xl);
    border-bottom: 1px solid var(--color-border);
}

.overview__text-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.overview__text-title {
    font-family: var(--font-heading);
    font-size: 24px;
    font-weight: 700;
    color: var(--color-primary);
    letter-spacing: -0.01em;
}

.overview__text-content {
    font-size: 16px;
    line-height: 1.8;
    color: var(--color-text-secondary);
}

/* ============================================
   BONUSES SECTION - COMPLETELY REDESIGNED
   ============================================ */

.bonuses {
    padding: var(--spacing-3xl) 0;
    background-color: var(--color-bg-alt);
}

.bonuses__container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.bonuses__header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.bonuses__label {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xs);
}

.bonuses__title {
    font-family: var(--font-heading);
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1.2;
    letter-spacing: -0.02em;
}

.bonuses__list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    max-width: 1000px;
    margin: 0 auto;
}

.bonus-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: var(--spacing-lg);
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.bonus-item:hover {
    border-color: var(--color-primary);
    transform: translateY(-4px);
    box-shadow: 0 4px 20px rgba(15, 23, 42, 0.08);
}

.bonus-item__number {
    display: none;
}

.bonus-item__visual {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    background-color: var(--color-accent);
    border-radius: var(--radius-sm);
    margin-bottom: var(--spacing-md);
}

.bonus-item__icon {
    width: 32px;
    height: 32px;
}

.bonus-item__content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    flex: 1;
}

.bonus-item__title {
    font-family: var(--font-heading);
    font-size: 20px;
    font-weight: 700;
    color: var(--color-primary);
    letter-spacing: -0.01em;
    margin-bottom: var(--spacing-xs);
}

.bonus-item__description {
    font-size: 14px;
    line-height: 1.6;
    color: var(--color-text-secondary);
}

/* ============================================
   ARTICLES SECTION - COMPLETELY REDESIGNED
   ============================================ */

.main {
    padding: var(--spacing-5xl) 0;
    background-color: var(--color-bg);
}

.main__container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.articles__header {
    text-align: center;
    margin-bottom: var(--spacing-4xl);
}

.articles__label {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-sm);
}

.articles__title {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1.2;
    letter-spacing: -0.02em;
}

.articles__list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
    max-width: 1000px;
    margin: 0 auto;
}

.article-item {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: var(--spacing-xl);
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: all var(--transition-base);
}

.article-item:hover {
    border-color: var(--color-primary);
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(15, 23, 42, 0.1);
}

.article-item--featured {
    grid-template-columns: 300px 1fr;
    border-width: 2px;
}

.article-item__link {
    display: contents;
    color: inherit;
}

.article-item__media {
    position: relative;
    overflow: hidden;
    width: 300px;
    height: 100%;
    min-height: 200px;
    flex-shrink: 0;
}

.article-item--featured .article-item__media {
    width: 300px;
    height: 100%;
    min-height: 200px;
}

.article-item__image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.article-item:hover .article-item__image {
    transform: scale(1.08);
}

.article-item__badge {
    position: absolute;
    top: var(--spacing-md);
    left: var(--spacing-md);
    background-color: var(--color-primary);
    color: var(--color-bg);
    padding: 6px 14px;
    border-radius: var(--radius-sm);
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.article-item__body {
    display: flex;
    flex-direction: column;
    padding: var(--spacing-xl);
    gap: var(--spacing-md);
}

.article-item__title {
    font-family: var(--font-heading);
    font-size: 24px;
    font-weight: 700;
    color: var(--color-primary);
    letter-spacing: -0.01em;
    line-height: 1.3;
}

.article-item--featured .article-item__title {
    font-size: 28px;
}

.article-item__description {
    font-size: 15px;
    line-height: 1.7;
    color: var(--color-text-secondary);
    flex: 1;
}

.article-item__footer {
    display: flex;
    gap: var(--spacing-md);
    font-size: 13px;
    color: var(--color-text-light);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-border);
}

.article-item__author {
    font-weight: 500;
}

.article-item__date {
    color: var(--color-text-secondary);
}

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

.footer {
    background-color: var(--color-primary);
    color: var(--color-bg);
    padding: var(--spacing-4xl) 0 var(--spacing-xl);
}

.footer__container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.footer__content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}

.footer__section {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.footer__title {
    font-family: var(--font-heading);
    font-size: 20px;
    font-weight: 700;
    color: var(--color-bg);
    letter-spacing: -0.01em;
}

.footer__text {
    font-size: 15px;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.8);
}

.footer__list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer__item {
    margin: 0;
}

.footer__link {
    color: rgba(255, 255, 255, 0.8);
    font-size: 15px;
    transition: color var(--transition-base);
}

.footer__link:hover {
    color: var(--color-bg);
}

.footer__bottom {
    padding-top: var(--spacing-xl);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.footer__copyright {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
}

/* ============================================
   ARTICLE PAGE STYLES
   ============================================ */

.article-page {
    padding: var(--spacing-4xl) 0;
    background-color: var(--color-bg);
    margin-top: 73px;
}

.article-main {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.back-button {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--color-text-secondary);
    font-size: 14px;
    font-weight: 500;
    margin-bottom: var(--spacing-xl);
    transition: color var(--transition-base);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.back-button:hover {
    color: var(--color-primary);
}

.article-main h1 {
    font-family: var(--font-heading);
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 700;
    color: var(--color-primary);
    margin: var(--spacing-lg) 0;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

.article-text {
    margin-top: var(--spacing-xl);
}

.article-text p {
    font-size: 17px;
    line-height: 1.9;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
}

.article-text p:last-child {
    margin-bottom: 0;
}

.article-text h2 {
    font-family: var(--font-heading);
    font-size: 28px;
    font-weight: 700;
    color: var(--color-primary);
    margin-top: var(--spacing-2xl);
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.01em;
    line-height: 1.3;
}

.article-text h2:first-of-type {
    margin-top: var(--spacing-xl);
}

.article-text ul {
    margin-left: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.article-text ul li {
    font-size: 17px;
    line-height: 1.9;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-sm);
}

.category-tag {
    display: inline-block;
    background-color: var(--color-primary);
    color: var(--color-bg);
    padding: 6px 14px;
    border-radius: var(--radius-sm);
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--spacing-md);
}

.post-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 14px;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-lg);
}

.post-meta .separator {
    color: var(--color-border);
}

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

@media (max-width: 1024px) {
    .hero__grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-3xl);
    }
    
    .hero__visual {
        justify-content: center;
    }
    
    .overview__content {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
    }
    
    .overview__image-block {
        position: static;
    }
    
    .bonuses__list {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-md);
    }
    
    .article-item {
        grid-template-columns: 250px 1fr;
    }
    
    .article-item__media {
        width: 250px;
        height: 100%;
        min-height: 200px;
    }
    
    .article-item--featured {
        grid-template-columns: 250px 1fr;
    }
    
    .article-item--featured .article-item__media {
        width: 250px;
        height: 100%;
        min-height: 200px;
    }
}

@media (max-width: 768px) {
    :root {
        --container-padding: 1rem;
        --spacing-xl: 2rem;
        --spacing-2xl: 3rem;
        --spacing-3xl: 3rem;
        --spacing-4xl: 4rem;
        --spacing-5xl: 5rem;
    }
    
    .nav__menu-toggle {
        display: flex;
    }
    
    .nav__list {
        position: fixed;
        top: 73px;
        left: 0;
        right: 0;
        background-color: var(--color-bg);
        flex-direction: column;
        gap: 0;
        padding: var(--spacing-md) 0;
        border-top: 1px solid var(--color-border);
        transform: translateX(-100%);
        transition: transform var(--transition-base);
        z-index: 999;
        box-shadow: 0 10px 30px rgba(15, 23, 42, 0.1);
    }
    
    .nav__list--active {
        transform: translateX(0);
    }
    
    .nav__item {
        width: 100%;
        text-align: center;
        padding: var(--spacing-md) 0;
        border-bottom: 1px solid var(--color-border);
    }
    
    .nav__item:last-child {
        border-bottom: none;
    }
    
    .nav__link {
        display: block;
        width: 100%;
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: 16px;
    }
    
    .nav__link::after {
        display: none;
    }
    
    .hero {
        padding: var(--spacing-4xl) 0;
    }
    
    .hero__visual {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .hero__stat {
        width: 100%;
    }
    
    .overview__text-block {
        gap: var(--spacing-xl);
    }
    
    .bonuses__list {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .article-item {
        grid-template-columns: 1fr;
    }
    
    .article-item--featured {
        grid-template-columns: 1fr;
    }
    
    .article-item__media {
        width: 100%;
        height: 200px;
    }
    
    .article-item--featured .article-item__media {
        width: 100%;
        height: 200px;
    }
    
    .footer__content {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
}

@media (max-width: 480px) {
    .hero__actions {
        flex-direction: column;
    }
    
    .hero__cta {
        width: 100%;
    }
    
    .hero__stat {
        min-width: auto;
        width: 100%;
    }
}