/* ===========================================
   Features – Editorial Magazine
   =========================================== */

/* ---------- PAGE HEADER ---------- */

.feat-page-header {
    position: relative;
    overflow: hidden;
    border-bottom: var(--rule-dark);
}

.feat-header-top-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 14px var(--space-xl);
    border-bottom: var(--rule);
}

.feat-breadcrumb {
    font-family: var(--font-body);
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--stone);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    display: flex;
    align-items: center;
    gap: 8px;
}

.feat-breadcrumb a {
    color: var(--stone);
    text-decoration: none;
    transition: color var(--transition);
}

.feat-breadcrumb a:hover { color: var(--terracotta); }
.feat-breadcrumb a:focus-visible {
    outline: 2px solid var(--terracotta);
    outline-offset: 2px;
}

.crumb-sep { color: var(--sand); }

.feat-count {
    font-family: var(--font-body);
    font-size: 0.65rem;
    font-weight: 600;
    color: var(--sand);
    letter-spacing: 0.18em;
    text-transform: uppercase;
}

.feat-header-body {
    position: relative;
    max-width: var(--max-w);
    margin: 0 auto;
    padding: var(--space-3xl) var(--space-xl) var(--space-4xl);
    overflow: hidden;
}

.feat-watermark {
    position: absolute;
    bottom: -0.15em;
    right: var(--space-xl);
    font-family: var(--font-display);
    font-size: clamp(5rem, 14vw, 12rem);
    font-weight: 800;
    font-style: italic;
    color: var(--cloud);
    letter-spacing: -0.04em;
    line-height: 1;
    pointer-events: none;
    user-select: none;
    white-space: nowrap;
    opacity: 0.5;
}

.feat-header-text {
    position: relative;
    z-index: 1;
    max-width: 640px;
}

.feat-header-text h1 {
    font-family: var(--font-display);
    font-size: clamp(2.8rem, 7vw, 5rem);
    font-weight: 800;
    font-style: italic;
    color: var(--ink);
    margin-bottom: 16px;
    line-height: 1.05;
}

.feat-header-desc {
    font-family: var(--font-body);
    font-size: 1.05rem;
    color: var(--ink-muted);
    line-height: 1.85;
    max-width: 520px;
    font-weight: 300;
}

/* ---------- CATEGORY SECTIONS ---------- */

.feat-categories {
    max-width: var(--max-w);
    margin: 0 auto;
}

.feat-category {
    display: grid;
    grid-template-columns: 240px 1fr;
    border-bottom: var(--rule-dark);
}

.feat-category-sidebar {
    padding: var(--space-2xl) var(--space-xl);
    border-right: var(--rule);
    position: relative;
}

.feat-category-label {
    font-family: var(--font-body);
    font-size: 0.6rem;
    font-weight: 600;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--stone);
    margin-bottom: 8px;
}

.feat-category-name {
    font-family: var(--font-display);
    font-size: clamp(1.4rem, 2.5vw, 1.8rem);
    font-weight: 700;
    font-style: italic;
    color: var(--ink);
    line-height: 1.2;
}

.feat-category-count {
    display: inline-block;
    margin-top: 12px;
    font-family: var(--font-body);
    font-size: 0.65rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--sand);
    padding: 4px 12px;
    border: var(--rule);
    border-radius: 2px;
}

.feat-category-cards {
    display: flex;
    flex-direction: column;
}

/* ---------- FEATURE CARD ---------- */

.feat-card {
    border-bottom: var(--hairline);
}

.feat-card:last-child { border-bottom: none; }

.feat-card-summary {
    display: grid;
    grid-template-columns: 48px 1fr auto auto;
    align-items: center;
    gap: 0;
    padding: 20px var(--space-xl);
    cursor: pointer;
    transition: background-color var(--transition);
}

.feat-card-summary:hover { background: var(--parchment); }
.feat-card-summary:focus-visible {
    outline: 2px solid var(--terracotta);
    outline-offset: -2px;
}

.feat-card.open .feat-card-summary {
    background: var(--parchment);
}

.feat-card-num {
    font-family: var(--font-display);
    font-size: 0.85rem;
    font-weight: 400;
    font-style: italic;
    color: var(--sand);
    letter-spacing: -0.02em;
}

.feat-card-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding-right: var(--space-lg);
}

.feat-card-name {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--ink);
    line-height: 1.3;
}

.feat-card-name .module-en {
    font-family: var(--font-body);
    font-size: 0.6rem;
    font-weight: 600;
    color: var(--sand);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-left: 10px;
}

.feat-card-desc {
    font-family: var(--font-body);
    font-size: 0.85rem;
    color: var(--stone);
    line-height: 1.6;
    font-weight: 300;
}

.feat-card-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 0 var(--space-lg);
}

.status-badge {
    display: inline-block;
    font-family: var(--font-body);
    font-size: 0.6rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    padding: 4px 12px;
    border-radius: 2px;
    white-space: nowrap;
}

.status-live {
    color: var(--forest);
    background: rgba(45, 95, 62, 0.08);
    border: 1px solid rgba(45, 95, 62, 0.2);
}

.status-beta {
    color: var(--terracotta);
    background: rgba(196, 88, 50, 0.06);
    border: 1px solid rgba(196, 88, 50, 0.2);
}

.feat-card-toggle {
    width: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.feat-card-toggle::after {
    content: '+';
    font-family: var(--font-display);
    font-size: 1.3rem;
    font-weight: 400;
    color: var(--sand);
    transition: color var(--transition), transform var(--transition);
    line-height: 1;
}

.feat-card.open .feat-card-toggle::after {
    content: '−';
    color: var(--terracotta);
}

.feat-card-summary:hover .feat-card-toggle::after {
    color: var(--ink);
}

/* ---------- EXPAND DETAIL ---------- */

.feat-card-detail {
    display: none;
    background: var(--warm-white);
    border-top: var(--hairline);
}

.feat-card.open .feat-card-detail {
    display: block;
}

.feat-expand {
    display: grid;
    grid-template-columns: 1fr 280px;
    gap: 0;
    padding: var(--space-xl) var(--space-xl) var(--space-xl) calc(48px + var(--space-xl));
}

.feat-expand-desc p {
    font-family: var(--font-body);
    font-size: 0.9rem;
    line-height: 1.9;
    color: var(--ink-muted);
    font-weight: 300;
    max-width: 520px;
}

.feat-expand-attrs {
    border-left: var(--rule);
    padding-left: var(--space-lg);
    margin-left: var(--space-lg);
    display: flex;
    flex-direction: column;
}

.attr-pair {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 9px 0;
    border-bottom: var(--hairline);
    gap: 16px;
}

.attr-pair:last-child { border-bottom: none; }

.attr-k {
    font-family: var(--font-body);
    font-size: 0.7rem;
    font-weight: 400;
    color: var(--stone);
    letter-spacing: 0.04em;
    white-space: nowrap;
}

.attr-v {
    font-family: var(--font-display);
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--ink);
    letter-spacing: -0.01em;
}

.attr-v i.fa-check {
    font-size: 0.65rem;
    color: var(--forest);
}

/* ---------- HIGHLIGHT BANNER ---------- */

.feat-highlight {
    border-bottom: var(--rule-dark);
    background: var(--parchment);
}

.feat-highlight-inner {
    max-width: var(--max-w);
    margin: 0 auto;
    padding: var(--space-3xl) var(--space-xl);
}

.feat-highlight-label {
    font-family: var(--font-body);
    font-size: 0.6rem;
    font-weight: 600;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--stone);
    margin-bottom: var(--space-xl);
}

.feat-highlight-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
}

.feat-highlight-item {
    padding: 0 var(--space-xl);
    border-right: var(--rule);
}

.feat-highlight-item:first-child { padding-left: 0; }
.feat-highlight-item:last-child { border-right: none; padding-right: 0; }

.feat-highlight-num {
    font-family: var(--font-display);
    font-size: clamp(2.4rem, 5vw, 3.6rem);
    font-weight: 800;
    font-style: italic;
    color: var(--ink);
    line-height: 1;
    letter-spacing: -0.03em;
    margin-bottom: 8px;
}

.feat-highlight-num .accent { color: var(--terracotta); }

.feat-highlight-text {
    font-family: var(--font-body);
    font-size: 0.8rem;
    color: var(--stone);
    line-height: 1.6;
    font-weight: 400;
}

/* ---------- CTA ---------- */

.feat-cta-section {
    background: var(--ink);
}

.feat-cta-bar {
    max-width: var(--max-w);
    margin: 0 auto;
    padding: var(--space-2xl) var(--space-xl);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-xl);
}

.feat-cta-left span {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 700;
    font-style: italic;
    color: var(--cream);
    letter-spacing: -0.01em;
}

.feat-cta-right {
    display: flex;
    gap: 12px;
    flex-shrink: 0;
}

/* ---------- RESPONSIVE: 1024px ---------- */

@media (max-width: 1024px) {
    .feat-header-body {
        padding: var(--space-2xl) var(--space-xl) var(--space-3xl);
    }

    .feat-category {
        grid-template-columns: 200px 1fr;
    }

    .feat-category-sidebar {
        padding: var(--space-xl) var(--space-lg);
    }

    .feat-expand {
        grid-template-columns: 1fr 240px;
        padding-left: calc(48px + var(--space-lg));
    }

    .feat-highlight-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* ---------- RESPONSIVE: 768px ---------- */

@media (max-width: 768px) {
    .feat-header-top-bar {
        padding: 14px var(--space-lg);
    }

    .feat-header-body {
        padding: var(--space-2xl) var(--space-lg) var(--space-3xl);
    }

    .feat-watermark {
        right: var(--space-lg);
        font-size: clamp(3.5rem, 18vw, 7rem);
    }

    .feat-category {
        grid-template-columns: 1fr;
    }

    .feat-category-sidebar {
        padding: var(--space-xl) var(--space-lg) var(--space-md);
        border-right: none;
        border-bottom: var(--hairline);
        display: flex;
        align-items: baseline;
        gap: var(--space-md);
        flex-wrap: wrap;
    }

    .feat-category-name {
        font-size: 1.2rem;
    }

    .feat-category-count {
        margin-top: 0;
    }

    .feat-card-summary {
        grid-template-columns: 36px 1fr auto;
        padding: 16px var(--space-lg);
        gap: 0;
    }

    .feat-card-meta { padding: 0 var(--space-sm); }
    .feat-card-toggle { width: 32px; }

    .feat-card-desc { display: none; }

    .feat-card-name .module-en { display: none; }

    .feat-expand {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
        padding: var(--space-lg);
    }

    .feat-expand-attrs {
        border-left: none;
        border-top: var(--hairline);
        padding-left: 0;
        margin-left: 0;
        padding-top: var(--space-md);
    }

    .feat-highlight-inner {
        padding: var(--space-2xl) var(--space-lg);
    }

    .feat-highlight-grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-xl) 0;
    }

    .feat-highlight-item {
        padding: 0 var(--space-lg);
    }

    .feat-highlight-item:nth-child(2) { border-right: none; }
    .feat-highlight-item:nth-child(3) { padding-left: 0; }
    .feat-highlight-item:nth-child(3),
    .feat-highlight-item:nth-child(4) {
        padding-top: var(--space-xl);
        border-top: var(--rule);
    }

    .feat-cta-bar {
        flex-direction: column;
        align-items: flex-start;
        padding: var(--space-xl) var(--space-lg);
        gap: var(--space-lg);
    }

    .feat-cta-right {
        flex-direction: column;
        width: 100%;
    }

    .feat-cta-right .btn {
        text-align: center;
        justify-content: center;
    }
}

/* ---------- RESPONSIVE: 480px ---------- */

@media (max-width: 480px) {
    .feat-card-summary {
        grid-template-columns: 32px 1fr auto;
    }

    .feat-card-num { font-size: 0.75rem; }
    .feat-card-name { font-size: 0.95rem; }

    .feat-highlight-grid {
        grid-template-columns: 1fr;
    }

    .feat-highlight-item {
        padding: var(--space-lg) 0;
        border-right: none;
        border-bottom: var(--rule);
    }

    .feat-highlight-item:first-child { padding-top: 0; }
    .feat-highlight-item:last-child { border-bottom: none; padding-bottom: 0; }
    .feat-highlight-item:nth-child(3),
    .feat-highlight-item:nth-child(4) {
        padding-top: var(--space-lg);
        border-top: none;
    }
}