/* ========================================
   Libretto Design System (Combined)
   ======================================== */
:root {
    --color-white: #FFFFFF;
    --color-sage-lighter: #F4F8F4;
    --color-sage: #6F8F72;
    --color-sage-light: #E8F0E9;
    --color-sage-dark: #5A7A5D;
    --color-amber: #F2A65A;
    --color-amber-dark: #E8954A;
    --color-amber-light: #FEF3E7;
    --color-charcoal: #333333;
    --color-gray: #666666;
    --color-muted: #999999;
    --color-border: #E5E5E5;
    --color-border-light: #EBEBEB;
    
    --font-serif: 'Noto Serif KR', serif;
    --font-sans: 'Pretendard', -apple-system, BlinkMacSystemFont, sans-serif;
    
    --font-size-body: 16px;
    --font-size-h1: 28px;
    --font-size-h2: 24px;
    --font-size-h3: 18px;
    --font-size-base: 15px;
    --font-size-small: 14px;
    --font-size-xs: 12px;
    
    --line-height-body: 1.7;
    --line-height-heading: 1.4;
    
    --max-width-page: 1200px; /* Aligned with index page max-width */
    --header-height: 64px;
    
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    --spacing-3xl: 64px;
    
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    font-size: var(--font-size-body);
    line-height: var(--line-height-body);
    color: var(--color-charcoal);
    background-color: var(--color-white);
    -webkit-font-smoothing: antialiased;
}

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

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

/* ========================================
   Header Styles
   ======================================== */
.header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--color-white);
    border-bottom: 1px solid var(--color-border-light);
    height: var(--header-height);
}

.header__inner {
    max-width: var(--max-width-page);
    margin: 0 auto;
    padding: 0 var(--spacing-2xl);
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.header__logo {
    font-family: var(--font-serif);
    font-size: 22px;
    font-weight: 600;
    color: var(--color-sage);
    letter-spacing: -0.02em;
    flex-shrink: 0;
}

.header__nav {
    display: flex;
    gap: var(--spacing-xl);
}

.header__nav-link {
    font-family: var(--font-sans);
    font-size: 15px;
    font-weight: 500;
    color: var(--color-gray);
    transition: color 0.2s;
    white-space: nowrap;
    position: relative;
}

.header__nav-link:hover,
.header__nav-link.active {
    color: var(--color-charcoal);
}

.header__nav-link .nav-text-ko { display: inline; }
.header__nav-link .nav-text-en { display: none; }
.header__nav-link:hover .nav-text-ko { display: none; }
.header__nav-link:hover .nav-text-en { display: inline; }

.header__actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex-shrink: 0;
}

/* Guest/Logged-in States */
.header__guest, .header__logged-in {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.header__actions--guest .header__logged-in { display: none; }
.header__actions--logged-in .header__guest { display: none; }

.header__icon-btn {
    width: 40px;
    height: 40px;
    border: none;
    background: transparent;
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-gray);
    transition: all 0.2s;
    position: relative;
    flex-shrink: 0;
}

.header__icon-btn:hover {
    background: var(--color-sage-lighter);
    color: var(--color-charcoal);
}

.notification-dot {
    position: absolute;
    top: 8px;
    right: 8px;
    width: 8px;
    height: 8px;
    background: var(--color-amber);
    border-radius: 50%;
    border: 2px solid var(--color-white);
}

.header__login-btn {
    padding: 8px 16px;
    font-family: var(--font-sans);
    font-size: 14px;
    font-weight: 500;
    color: var(--color-sage);
    background: transparent;
    border: 1px solid var(--color-sage);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
    flex-shrink: 0;
}

.header__login-btn:hover {
    background: var(--color-sage);
    color: var(--color-white);
}

.header__subscribe-btn {
    padding: 8px 16px;
    font-family: var(--font-sans);
    font-size: 14px;
    font-weight: 600;
    color: var(--color-white);
    background: var(--color-amber);
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: background 0.2s;
    white-space: nowrap;
    flex-shrink: 0;
}

.header__subscribe-btn:hover {
    background: var(--color-amber-dark);
}

.header__user {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--color-sage-light);
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-sage);
    font-family: var(--font-sans);
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.2s;
    flex-shrink: 0;
}

.header__hamburger {
    display: none;
    width: 40px;
    height: 40px;
    align-items: center;
    justify-content: center;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--color-charcoal);
    flex-shrink: 0;
}

/* Mobile Menu */
.mobile-menu-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 199;
}

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

.mobile-menu {
    display: none;
    position: fixed;
    top: 0;
    right: -300px;
    width: 300px;
    height: 100vh;
    background: var(--color-white);
    z-index: 200;
    box-shadow: -4px 0 20px rgba(0, 0, 0, 0.1);
    transition: right 0.3s ease;
    overflow-y: auto;
}

.mobile-menu.active { right: 0; }

.mobile-menu__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--color-border-light);
}

.mobile-menu__logo {
    font-family: var(--font-serif);
    font-size: 20px;
    font-weight: 600;
    color: var(--color-sage);
}

.mobile-menu__close {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--color-gray);
    border-radius: 8px;
    transition: all 0.2s;
}

.mobile-menu__close:hover {
    background: var(--color-sage-lighter);
    color: var(--color-charcoal);
}

.mobile-menu__nav { padding: var(--spacing-lg); }

.mobile-menu__link {
    display: block;
    padding: var(--spacing-md) 0;
    font-family: var(--font-sans);
    font-size: 16px;
    font-weight: 500;
    color: var(--color-charcoal);
    border-bottom: 1px solid var(--color-border-light);
    transition: color 0.2s;
}

.mobile-menu__link:hover,
.mobile-menu__link.active { color: var(--color-sage); }

.mobile-menu__link .nav-text-en { display: none; }
.mobile-menu__link:hover .nav-text-en { display: inline; }
.mobile-menu__link:hover .nav-text-ko { display: none; }

.mobile-menu__actions {
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.mobile-menu__subscribe-btn, .mobile-menu__login-btn {
    display: block;
    width: 100%;
    padding: 12px;
    font-family: var(--font-sans);
    font-size: 15px;
    border-radius: 8px;
    cursor: pointer;
    text-align: center;
    transition: all 0.2s;
}

.mobile-menu__subscribe-btn {
    font-weight: 600;
    color: var(--color-white);
    background: var(--color-amber);
    border: none;
}
.mobile-menu__subscribe-btn:hover { background: var(--color-amber-dark); }

.mobile-menu__login-btn {
    font-weight: 500;
    color: var(--color-sage);
    background: var(--color-white);
    border: 1px solid var(--color-sage);
}
.mobile-menu__login-btn:hover {
    background: var(--color-sage);
    color: var(--color-white);
}

/* ========================================
   Footer Styles
   ======================================== */
.footer {
    background: var(--color-sage-lighter);
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
    margin-top: var(--spacing-3xl);
}

.footer__inner {
    max-width: var(--max-width-page);
    margin: 0 auto;
    padding: 0 var(--spacing-2xl);
}

.footer__top {
    display: flex;
    justify-content: space-between;
    gap: var(--spacing-3xl);
    padding-bottom: var(--spacing-xl);
    border-bottom: 1px solid var(--color-border);
    margin-bottom: var(--spacing-lg);
}

.footer__brand { max-width: 320px; }

.footer__logo {
    font-family: var(--font-serif);
    font-size: 24px;
    font-weight: 600;
    color: var(--color-sage);
    margin-bottom: var(--spacing-sm);
}

.footer__tagline {
    font-family: var(--font-sans);
    font-size: var(--font-size-small);
    color: var(--color-gray);
    line-height: 1.6;
}

.footer__links {
    display: flex;
    gap: var(--spacing-3xl);
}

.footer__link-group { min-width: 100px; }

.footer__link-group h4 {
    font-family: var(--font-sans);
    font-size: 13px;
    font-weight: 600;
    color: var(--color-charcoal);
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.footer__link-group a {
    display: block;
    font-family: var(--font-sans);
    font-size: var(--font-size-small);
    color: var(--color-gray);
    margin-bottom: var(--spacing-sm);
    transition: color 0.2s;
}

.footer__link-group a:hover { color: var(--color-sage); }

.footer__bottom { text-align: center; }

.footer__copyright {
    font-family: var(--font-sans);
    font-size: var(--font-size-xs);
    color: var(--color-muted);
}

/* Minimal Footer */
.footer--minimal {
    background: var(--color-white);
    border-top: 1px solid var(--color-border-light);
    padding: var(--spacing-lg) 0;
    margin-top: 0;
}
.footer--minimal .footer__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.footer--minimal .footer__copyright { text-align: left; }
.footer--minimal .footer__legal-links {
    display: flex;
    gap: var(--spacing-lg);
}
.footer--minimal .footer__legal-links a {
    font-family: var(--font-sans);
    font-size: var(--font-size-xs);
    color: var(--color-muted);
    transition: color 0.2s;
}
.footer--minimal .footer__legal-links a:hover { color: var(--color-sage); }

/* ========================================
   Index / Component Styles (from index.html)
   ======================================== */

.hero { padding: var(--spacing-2xl) 0 var(--spacing-md); }
.hero__inner {
    max-width: var(--max-width-page);
    margin: 0 auto;
    padding: 0 var(--spacing-2xl);
}
.hero__main {
    display: grid;
    grid-template-columns: 1fr 340px;
    gap: var(--spacing-2xl);
}

/* Main Feature */
.main-feature { position: relative; }
.main-feature__slide { display: none; cursor: pointer; }
.main-feature__slide.active { display: block; }

.main-feature__image-wrap {
    position: relative;
    margin-bottom: var(--spacing-lg);
}
.main-feature__image {
    width: 100%;
    aspect-ratio: 2 / 1;
    background: linear-gradient(135deg, var(--color-sage) 0%, var(--color-sage-dark) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255, 255, 255, 0.4);
    font-size: 12px;
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: opacity 0.2s;
}
.main-feature__slide:hover .main-feature__image { opacity: 0.95; }

.main-feature__badge {
    position: absolute;
    top: var(--spacing-md);
    left: var(--spacing-md);
    padding: 5px 10px;
    background: var(--color-amber);
    color: var(--color-white);
    font-size: 11px;
    font-weight: 600;
    border-radius: var(--radius-sm);
}

.main-feature__dots {
    position: absolute;
    bottom: var(--spacing-md);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
    z-index: 10;
}
.main-feature__dot {
    width: 8px;
    height: 8px;
    background: rgba(255, 255, 255, 0.5);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.3s;
}
.main-feature__dot:hover { background: rgba(255, 255, 255, 0.8); }
.main-feature__dot.active {
    background: var(--color-white);
    width: 24px;
    border-radius: 4px;
}

.main-feature__category {
    font-size: var(--font-size-xs);
    font-weight: 500;
    color: var(--color-sage);
    margin-bottom: var(--spacing-xs);
}
.main-feature__title {
    font-size: var(--font-size-h1);
    font-weight: 700;
    color: var(--color-charcoal);
    line-height: 1.35;
    margin-bottom: var(--spacing-sm);
    transition: color 0.2s;
}
.main-feature__slide:hover .main-feature__title { color: var(--color-sage); }
.main-feature__excerpt {
    font-size: var(--font-size-base);
    color: var(--color-gray);
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
}
.main-feature__meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-small);
}
.main-feature__author { font-weight: 600; color: var(--color-charcoal); }
.main-feature__time { color: var(--color-muted); }

/* Trending */
.trending {
    border-left: 1px solid var(--color-border-light);
    padding-left: var(--spacing-2xl);
}
.trending__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-lg);
}
.trending__title {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--color-charcoal);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}
.trending__title svg {
    width: 18px;
    height: 18px;
    color: var(--color-amber);
}
.trending__more {
    font-size: var(--font-size-small);
    color: var(--color-muted);
    transition: color 0.2s;
}
.trending__more:hover { color: var(--color-sage); }

.trending__item {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid var(--color-border-light);
    transition: all 0.2s;
}
.trending__item:first-child { padding-top: 0; }
.trending__item:last-child { border-bottom: none; padding-bottom: 0; }
.trending__item:hover { padding-left: var(--spacing-sm); }
.trending__rank {
    font-size: var(--font-size-base);
    font-weight: 700;
    color: var(--color-amber);
    width: 20px;
    flex-shrink: 0;
}
.trending__item:nth-child(n+4) .trending__rank { color: var(--color-muted); }
.trending__content { flex: 1; min-width: 0; }
.trending__item-title {
    font-size: var(--font-size-base);
    font-weight: 500;
    color: var(--color-charcoal);
    line-height: 1.45;
    margin-bottom: 4px;
    transition: color 0.2s;
}
.trending__item:hover .trending__item-title { color: var(--color-sage); }
.trending__item-meta {
    font-size: var(--font-size-small);
    color: var(--color-muted);
}

/* Premium Section */
.premium-section {
    background: var(--color-sage-lighter);
    padding: var(--spacing-xl) 0;
}
.premium-section__inner {
    max-width: var(--max-width-page);
    margin: 0 auto;
    padding: 0 var(--spacing-2xl);
}
.premium-section__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-lg);
}
.premium-section__title {
    font-size: var(--font-size-h3);
    font-weight: 600;
    color: var(--color-charcoal);
}
.premium-section__more {
    font-size: var(--font-size-small);
    color: var(--color-muted);
    transition: color 0.2s;
}
.premium-section__more:hover { color: var(--color-sage); }

.premium-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-xl);
}

.premium-card {
    display: block;
    transition: transform 0.2s;
}
.premium-card:hover { transform: translateY(-4px); }

.premium-card__cover {
    width: 100%;
    aspect-ratio: 4 / 3;
    background: linear-gradient(135deg, var(--color-sage-light) 0%, var(--color-sage) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    font-size: 11px;
    margin-bottom: var(--spacing-md);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: box-shadow 0.2s;
}
.premium-card:hover .premium-card__cover { box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12); }

.premium-card__status {
    font-size: var(--font-size-xs);
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
}
.premium-card__status--ongoing { color: var(--color-amber-dark); }
.premium-card__status--complete { color: var(--color-sage); }

.premium-card__title {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--color-charcoal);
    line-height: 1.45;
    margin-bottom: var(--spacing-sm);
    transition: color 0.2s;
}
.premium-card:hover .premium-card__title { color: var(--color-sage); }

.premium-card__footer {
    display: flex;
    justify-content: space-between;
    font-size: var(--font-size-small);
}
.premium-card__author { color: var(--color-muted); }
.premium-card__price { font-weight: 600; color: var(--color-sage); }

/* Authors Section */
.authors-section {
    padding: var(--spacing-xl) 0;
    overflow: hidden;
}
.authors-section__inner {
    max-width: var(--max-width-page);
    margin: 0 auto;
    padding: 0 var(--spacing-2xl);
}
.authors-section__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-lg);
}
.authors-section__title {
    font-size: var(--font-size-h3);
    font-weight: 600;
    color: var(--color-charcoal);
}
.authors-section__more {
    font-size: var(--font-size-small);
    color: var(--color-muted);
    transition: color 0.2s;
}
.authors-section__more:hover { color: var(--color-sage); }

.authors-slider {
    position: relative;
    overflow: hidden;
}
.authors-slider::before,
.authors-slider::after {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    width: 120px;
    z-index: 10;
    pointer-events: none;
}
.authors-slider::before {
    left: 0;
    background: linear-gradient(to right, var(--color-white) 0%, transparent 100%);
}
.authors-slider::after {
    right: 0;
    background: linear-gradient(to left, var(--color-white) 0%, transparent 100%);
}

.authors-track {
    display: flex;
    gap: var(--spacing-lg);
    animation: slideAuthors 35s linear infinite;
    padding: var(--spacing-sm) 0;
}
.authors-track:hover { animation-play-state: paused; }

@keyframes slideAuthors {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

.author-card {
    text-align: center;
    flex-shrink: 0;
    width: 120px;
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    transition: all 0.2s;
}
.author-card:hover { background: var(--color-sage-lighter); }

.author-card__avatar {
    width: 56px;
    height: 56px;
    margin: 0 auto var(--spacing-sm);
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-sage) 0%, var(--color-sage-dark) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    font-weight: 600;
    color: var(--color-white);
    transition: transform 0.2s;
}
.author-card:hover .author-card__avatar { transform: scale(1.05); }
.author-card__name {
    font-size: var(--font-size-small);
    font-weight: 600;
    color: var(--color-charcoal);
    margin-bottom: 2px;
    transition: color 0.2s;
}
.author-card:hover .author-card__name { color: var(--color-sage); }
.author-card__field { font-size: var(--font-size-xs); color: var(--color-muted); }

/* Latest Section */
.latest-section {
    padding: var(--spacing-xl) 0 var(--spacing-2xl);
}
.latest-section__inner {
    max-width: var(--max-width-page);
    margin: 0 auto;
    padding: 0 var(--spacing-2xl);
}
.latest-section__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-lg);
}
.latest-section__title-group {
    display: flex;
    flex-direction: column;
    gap: 2px;
}
.latest-section__label {
    font-size: var(--font-size-xs);
    font-weight: 500;
    color: var(--color-sage);
    text-transform: uppercase;
    letter-spacing: 0.03em;
}
.latest-section__title {
    font-size: var(--font-size-h3);
    font-weight: 600;
    color: var(--color-charcoal);
}
.latest-section__more {
    font-size: var(--font-size-small);
    color: var(--color-muted);
    display: flex;
    align-items: center;
    gap: 4px;
    transition: color 0.2s;
}
.latest-section__more:hover { color: var(--color-sage); }
.latest-section__more svg { width: 14px; height: 14px; }

.insight-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-2xl);
}
.insight-card {
    display: block;
    transition: transform 0.2s;
}
.insight-card:hover { transform: translateY(-4px); }

.insight-card__thumb {
    width: 100%;
    aspect-ratio: 16 / 9;
    background: var(--color-sage-lighter);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-sage);
    font-size: 11px;
    margin-bottom: var(--spacing-md);
    overflow: hidden;
    border-radius: var(--radius-md);
    transition: box-shadow 0.2s;
}
.insight-card:hover .insight-card__thumb { box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08); }
.insight-card__thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s;
}
.insight-card:hover .insight-card__thumb img { transform: scale(1.03); }

.insight-card__category {
    font-size: var(--font-size-xs);
    font-weight: 500;
    color: var(--color-sage);
    margin-bottom: var(--spacing-xs);
}
.insight-card__title {
    font-size: var(--font-size-body);
    font-weight: 600;
    color: var(--color-charcoal);
    line-height: 1.5;
    margin-bottom: var(--spacing-sm);
    transition: color 0.2s;
}
.insight-card:hover .insight-card__title { color: var(--color-sage); }
.insight-card__meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-small);
    color: var(--color-muted);
}
.insight-card__author { color: var(--color-gray); }
.insight-card__divider {
    width: 3px;
    height: 3px;
    background: var(--color-muted);
    border-radius: 50%;
}

/* Newsletter */
.newsletter {
    background: linear-gradient(135deg, var(--color-sage) 0%, var(--color-sage-dark) 100%);
    padding: var(--spacing-3xl) 0;
}
.newsletter__inner {
    max-width: 600px;
    margin: 0 auto;
    padding: 0 var(--spacing-2xl);
    text-align: center;
}
.newsletter__title {
    font-family: var(--font-serif);
    font-size: var(--font-size-h2);
    font-weight: 600;
    color: var(--color-white);
    margin-bottom: var(--spacing-md);
}
.newsletter__desc {
    font-size: var(--font-size-base);
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: var(--spacing-xl);
}
.newsletter__form {
    display: flex;
    gap: var(--spacing-sm);
}
.newsletter__input {
    flex: 1;
    padding: 14px 18px;
    font-size: var(--font-size-base);
    font-family: var(--font-sans);
    border: none;
    border-radius: var(--radius-sm);
    outline: none;
    background: var(--color-white);
    transition: box-shadow 0.2s;
}
.newsletter__input:focus { box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.3); }
.newsletter__input::placeholder { color: var(--color-muted); }

.newsletter__btn {
    padding: 14px 28px;
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--color-sage);
    background: var(--color-white);
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
}
.newsletter__btn:hover {
    background: var(--color-sage-lighter);
    transform: translateY(-2px);
}

/* Responsive */
@media (max-width: 1024px) {
    .hero__main { grid-template-columns: 1fr; }
    .trending {
        border-left: none;
        border-top: 1px solid var(--color-border-light);
        padding-left: 0;
        padding-top: var(--spacing-xl);
        margin-top: var(--spacing-xl);
    }
    .premium-grid { grid-template-columns: repeat(2, 1fr); }
    .insight-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .header__inner,
    .hero__inner,
    .premium-section__inner,
    .authors-section__inner,
    .latest-section__inner,
    .footer__inner {
        padding: 0 var(--spacing-lg);
    }
    
    .header__nav { display: none; }
    .header__hamburger { display: flex; }
    .mobile-menu { display: block; }
    .header__subscribe-btn { display: none; }
    
    .main-feature__image { aspect-ratio: 16 / 9; }
    
    .premium-grid { grid-template-columns: 1fr; gap: var(--spacing-lg); }
    .premium-card { display: flex; gap: var(--spacing-md); }
    .premium-card__cover {
        width: 100px;
        height: 75px;
        aspect-ratio: auto;
        flex-shrink: 0;
        margin-bottom: 0;
        border-radius: var(--radius-md);
    }
    .premium-card__body { flex: 1; min-width: 0; }
    
    .insight-grid { grid-template-columns: 1fr; }
    .newsletter__form { flex-direction: column; }
    .authors-slider::before, .authors-slider::after { width: 60px; }
    
    .footer__top { flex-direction: column; gap: var(--spacing-xl); }
    .footer__brand { max-width: 100%; }
    .footer__links { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--spacing-xl); }
}

@media (max-width: 600px) {
    .footer__links { grid-template-columns: repeat(2, 1fr); }
    .footer--minimal .footer__inner { flex-direction: column; gap: var(--spacing-md); text-align: center; }
    .footer--minimal .footer__copyright { text-align: center; }
}