/* Common CSS for crypto section - reusable across index/cluster/tag pages */

/* Crypto Section Variables */
:root {
    --crypto-primary: #37aee2;
    --crypto-primary-dark: #1e96c8;
    --crypto-accent: #f77fbe;
    --crypto-text: #10232b;
    --crypto-text-light: #666;
    --crypto-bg: #fbfcff;
    --crypto-border: #e0e0e0;
    --crypto-card-bg: #fff;
}

/* Crypto Section Typography */
.crypto-section-title {
    font-size: 42px;
    font-weight: 700;
    margin: 0 0 32px;
    color: var(--crypto-text);
    font-family: GothamPro-Medium;
    text-align: center;
}

@media (max-width: 768px) {
    .crypto-section-title {
        font-size: 32px;
        margin: 0 0 24px;
    }
}

.crypto-section-subtitle {
    font-size: 18px;
    line-height: 1.6;
    color: var(--crypto-text-light);
    margin: 0 0 40px;
    text-align: center;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

/* Article Grid Layout */
.crypto-articles-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 32px;
    margin-bottom: 60px;
}

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

@media (min-width: 1200px) {
    .crypto-articles-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Cluster Navigation Component */
.crypto-clusters {
    margin: 40px 0 60px;
}

.crypto-clusters__title {
    font-size: 28px;
    font-weight: 700;
    margin: 0 0 24px;
    color: var(--crypto-text);
    text-align: center;
}

.crypto-clusters__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
}

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

@media (min-width: 992px) {
    .crypto-clusters__grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.crypto-cluster-card {
    background: var(--crypto-card-bg);
    border: 2px solid var(--crypto-border);
    border-radius: 12px;
    padding: 24px;
    text-decoration: none;
    transition: all 0.3s;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.crypto-cluster-card:hover {
    border-color: var(--crypto-primary);
    box-shadow: 0 8px 24px rgba(55, 174, 226, 0.15);
    transform: translateY(-2px);
}

.crypto-cluster-card__icon {
    font-size: 32px;
    line-height: 1;
}

.crypto-cluster-card__name {
    font-size: 20px;
    font-weight: 700;
    color: var(--crypto-text);
    margin: 0;
}

.crypto-cluster-card__description {
    font-size: 14px;
    line-height: 1.6;
    color: var(--crypto-text-light);
    margin: 0;
    flex: 1;
}

.crypto-cluster-card__meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 13px;
    color: #999;
    padding-top: 12px;
    border-top: 1px solid var(--crypto-border);
}

.crypto-cluster-card__count {
    font-weight: 600;
    color: var(--crypto-primary);
}

.crypto-cluster-card__arrow {
    color: var(--crypto-primary);
    font-size: 18px;
}

/* Filter/Sort Bar */
.crypto-filter-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 32px;
    padding: 20px;
    background: var(--crypto-card-bg);
    border-radius: 12px;
    border: 1px solid var(--crypto-border);
}

.crypto-filter-bar__group {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
}

.crypto-filter-bar__label {
    font-size: 14px;
    font-weight: 600;
    color: var(--crypto-text);
}

.crypto-filter-bar__button {
    padding: 8px 16px;
    border: 1px solid var(--crypto-border);
    background: #fff;
    color: var(--crypto-text-light);
    font-size: 14px;
    font-weight: 500;
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.2s;
    font-family: GothamPro;
}

.crypto-filter-bar__button:hover {
    border-color: var(--crypto-primary);
    color: var(--crypto-primary);
}

.crypto-filter-bar__button--active {
    background: var(--crypto-primary);
    border-color: var(--crypto-primary);
    color: #fff;
}

.crypto-filter-bar__button--active:hover {
    background: var(--crypto-primary-dark);
    border-color: var(--crypto-primary-dark);
}

/* Pagination */
.crypto-pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    margin: 60px 0 40px;
}

.crypto-pagination__link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border: 1px solid var(--crypto-border);
    background: #fff;
    color: var(--crypto-text);
    text-decoration: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    transition: all 0.2s;
}

.crypto-pagination__link:hover {
    border-color: var(--crypto-primary);
    color: var(--crypto-primary);
}

.crypto-pagination__link--active {
    background: var(--crypto-primary);
    border-color: var(--crypto-primary);
    color: #fff;
}

.crypto-pagination__link--disabled {
    opacity: 0.4;
    cursor: not-allowed;
    pointer-events: none;
}

.crypto-pagination__ellipsis {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    color: var(--crypto-text-light);
}

/* Empty State */
.crypto-empty-state {
    text-align: center;
    padding: 80px 20px;
}

.crypto-empty-state__icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    opacity: 0.3;
}

.crypto-empty-state__title {
    font-size: 24px;
    font-weight: 700;
    color: var(--crypto-text);
    margin: 0 0 12px;
}

.crypto-empty-state__text {
    font-size: 16px;
    color: var(--crypto-text-light);
    margin: 0 0 24px;
}

.crypto-empty-state__link {
    display: inline-block;
    padding: 12px 24px;
    background: var(--crypto-primary);
    color: #fff;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    transition: all 0.2s;
}

.crypto-empty-state__link:hover {
    background: var(--crypto-primary-dark);
}

/* Loading Skeleton */
.crypto-skeleton {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: crypto-skeleton-loading 1.5s infinite;
    border-radius: 8px;
}

@keyframes crypto-skeleton-loading {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}

.crypto-skeleton--title {
    height: 32px;
    margin-bottom: 16px;
}

.crypto-skeleton--text {
    height: 16px;
    margin-bottom: 8px;
}

.crypto-skeleton--image {
    padding-top: 56.25%;
    margin-bottom: 16px;
}

/* =============================================
   Hero Section (index page)
   ============================================= */
.crypto-hero {
    text-align: center;
    padding: 40px 0 48px;
}

.crypto-hero__title {
    font-size: 48px;
    font-weight: 700;
    color: var(--crypto-text);
    font-family: GothamPro-Medium;
    margin: 0 0 16px;
    line-height: 1.2;
}

.crypto-hero__subtitle {
    font-size: 18px;
    line-height: 1.6;
    color: var(--crypto-text-light);
    max-width: 700px;
    margin: 0 auto;
}

@media (max-width: 768px) {
    .crypto-hero__title {
        font-size: 32px;
    }
    .crypto-hero__subtitle {
        font-size: 16px;
    }
}

/* Featured Articles (index page) */
.crypto-featured {
    margin-bottom: 60px;
}

.crypto-featured__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
}

@media (min-width: 768px) {
    .crypto-featured__grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Article Card - Featured modifier */
.crypto-article-card--featured {
    border: 2px solid var(--crypto-border);
    border-radius: 12px;
    overflow: hidden;
    transition: all 0.3s;
}

.crypto-article-card--featured:hover {
    border-color: var(--crypto-primary);
    box-shadow: 0 8px 24px rgba(55, 174, 226, 0.12);
}

/* =============================================
   Cluster Header (cluster page)
   ============================================= */
.crypto-cluster-header {
    text-align: center;
    padding: 24px 0 40px;
}

.crypto-cluster-header__title {
    font-size: 42px;
    font-weight: 700;
    color: var(--crypto-text);
    font-family: GothamPro-Medium;
    margin: 0 0 16px;
    line-height: 1.2;
}

.crypto-cluster-header__description {
    font-size: 18px;
    line-height: 1.6;
    color: var(--crypto-text-light);
    max-width: 700px;
    margin: 0 auto 16px;
}

.crypto-cluster-header__stats {
    font-size: 14px;
    color: #999;
}

@media (max-width: 768px) {
    .crypto-cluster-header__title {
        font-size: 30px;
    }
    .crypto-cluster-header__description {
        font-size: 16px;
    }
}

/* =============================================
   Pillar Article Card (cluster page)
   ============================================= */
.crypto-pillar {
    margin-bottom: 48px;
}

.crypto-pillar-card {
    background: var(--crypto-card-bg);
    border: 2px solid var(--crypto-primary);
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.3s;
}

.crypto-pillar-card:hover {
    box-shadow: 0 12px 32px rgba(55, 174, 226, 0.18);
}

.crypto-pillar-card__link {
    display: flex;
    text-decoration: none;
    color: inherit;
}

.crypto-pillar-card__image-wrapper {
    flex: 0 0 45%;
    max-width: 45%;
}

.crypto-pillar-card__image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.crypto-pillar-card__content {
    flex: 1;
    padding: 32px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.crypto-pillar-card__badge {
    display: inline-block;
    background: var(--crypto-primary);
    color: #fff;
    padding: 4px 12px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 12px;
    align-self: flex-start;
}

.crypto-pillar-card__title {
    font-size: 28px;
    font-weight: 700;
    color: var(--crypto-text);
    margin: 0 0 12px;
    line-height: 1.3;
}

.crypto-pillar-card__excerpt {
    font-size: 16px;
    line-height: 1.6;
    color: var(--crypto-text-light);
    margin: 0 0 16px;
}

.crypto-pillar-card__meta {
    display: flex;
    gap: 16px;
    font-size: 14px;
    color: #999;
}

@media (max-width: 768px) {
    .crypto-pillar-card__link {
        flex-direction: column;
    }
    .crypto-pillar-card__image-wrapper {
        flex: none;
        max-width: 100%;
    }
    .crypto-pillar-card__content {
        padding: 20px;
    }
    .crypto-pillar-card__title {
        font-size: 22px;
    }
}

/* =============================================
   Cluster Layout (main + sidebar)
   ============================================= */
.crypto-cluster-layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
    margin-bottom: 48px;
}

@media (min-width: 992px) {
    .crypto-cluster-layout {
        grid-template-columns: 1fr 300px;
    }
}

.crypto-cluster-sidebar {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

/* Two-column article grid (for cluster page) */
.crypto-articles-grid--two-col {
    grid-template-columns: 1fr;
}

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

/* Cluster Intro Text */
.crypto-cluster-intro {
    border-top: 1px solid var(--crypto-border);
    padding-top: 32px;
    margin-bottom: 40px;
}

.crypto-cluster-intro__text {
    font-size: 16px;
    line-height: 1.7;
    color: var(--crypto-text-light);
    max-width: 800px;
}

.crypto-cluster-intro__text p {
    margin: 0 0 16px;
}

/* =============================================
   Author Profile (author page)
   ============================================= */
.crypto-author-header {
    margin-bottom: 48px;
}

.crypto-author-header__inner {
    display: flex;
    gap: 32px;
    align-items: flex-start;
}

.crypto-author-header__avatar-wrapper {
    flex-shrink: 0;
}

.crypto-author-header__avatar {
    width: 128px;
    height: 128px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--crypto-border);
}

.crypto-author-header__name {
    font-size: 36px;
    font-weight: 700;
    color: var(--crypto-text);
    margin: 0 0 12px;
    line-height: 1.2;
}

.crypto-author-header__credentials {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 16px;
}

.crypto-author-header__credential {
    display: inline-block;
    padding: 4px 12px;
    background: #e7f3ff;
    color: var(--crypto-primary-dark);
    border-radius: 4px;
    font-size: 13px;
    font-weight: 600;
}

.crypto-author-header__bio {
    font-size: 16px;
    line-height: 1.7;
    color: var(--crypto-text-light);
    margin-bottom: 16px;
}

.crypto-author-header__socials {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.crypto-author-header__social-link {
    display: inline-block;
    padding: 6px 16px;
    border: 1px solid var(--crypto-border);
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
    color: var(--crypto-text);
    text-decoration: none;
    transition: all 0.2s;
}

.crypto-author-header__social-link:hover {
    border-color: var(--crypto-primary);
    color: var(--crypto-primary);
}

@media (max-width: 575px) {
    .crypto-author-header__inner {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    .crypto-author-header__name {
        font-size: 28px;
    }
    .crypto-author-header__credentials {
        justify-content: center;
    }
    .crypto-author-header__socials {
        justify-content: center;
    }
}

/* =============================================
   Tags Cloud
   ============================================= */
.crypto-tags-cloud {
    margin: 48px 0 20px;
    text-align: center;
}

.crypto-tags-cloud__list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
}

.crypto-tag-pill__count {
    display: inline-block;
    margin-left: 4px;
    font-size: 11px;
    opacity: 0.7;
}

/* Tag Pills */
.crypto-tag-pill {
    display: inline-block;
    padding: 6px 14px;
    background: #e7f3ff;
    color: #0066cc;
    border-radius: 16px;
    font-size: 13px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s;
}

.crypto-tag-pill:hover {
    background: #0066cc;
    color: #fff;
}

.crypto-tag-pill--large {
    padding: 8px 18px;
    font-size: 14px;
}

/* Utility Classes */
.crypto-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 15px;
}

.crypto-text-center {
    text-align: center;
}

.crypto-text-muted {
    color: var(--crypto-text-light);
}

.crypto-mb-0 {
    margin-bottom: 0 !important;
}

.crypto-mb-8 {
    margin-bottom: 8px;
}

.crypto-mb-16 {
    margin-bottom: 16px;
}

.crypto-mb-24 {
    margin-bottom: 24px;
}

.crypto-mb-32 {
    margin-bottom: 32px;
}

.crypto-mb-40 {
    margin-bottom: 40px;
}

.crypto-mt-0 {
    margin-top: 0 !important;
}

.crypto-mt-16 {
    margin-top: 16px;
}

.crypto-mt-24 {
    margin-top: 24px;
}

.crypto-mt-32 {
    margin-top: 32px;
}

.crypto-mt-40 {
    margin-top: 40px;
}