/* ==========================================================================
   WRITING — index and article pages
   ========================================================================== */

.writing-page {
    background-image:
        radial-gradient(circle at 12% 8%, rgba(16, 185, 129, 0.07) 0%, transparent 36%),
        radial-gradient(circle at 88% 18%, rgba(0, 243, 255, 0.05) 0%, transparent 38%),
        radial-gradient(circle at 50% 90%, rgba(245, 158, 11, 0.03) 0%, transparent 44%);
}

.writing-page main {
    padding-top: 68px;
}

.writing-page .portfolio-footer {
    margin-top: 0;
}

/* --------------------------------------------------------------------------
   Writing index
   -------------------------------------------------------------------------- */

.writing-hero {
    position: relative;
    overflow: hidden;
    padding: 96px 0 64px;
    border-bottom: 1px solid var(--border-glass);
}

.writing-hero::before {
    content: "";
    position: absolute;
    top: -180px;
    right: -120px;
    width: 520px;
    height: 520px;
    border: 1px solid rgba(16, 185, 129, 0.12);
    border-radius: 50%;
    pointer-events: none;
}

.writing-hero::after {
    content: "";
    position: absolute;
    top: -80px;
    right: -20px;
    width: 300px;
    height: 300px;
    border: 1px solid rgba(0, 243, 255, 0.1);
    border-radius: 50%;
    pointer-events: none;
}

.writing-hero-inner {
    position: relative;
    z-index: 1;
    max-width: 980px;
}

.writing-hero .section-badge {
    margin-bottom: 22px;
}

.writing-hero h1 {
    max-width: 900px;
    font-family: var(--font-heading);
    font-size: clamp(2.4rem, 5.4vw, 4.4rem);
    line-height: 1.04;
    letter-spacing: -0.035em;
    color: var(--text-white);
    margin-bottom: 24px;
}

.writing-hero-deck {
    max-width: 740px;
    color: var(--text-secondary);
    font-size: 17px;
    line-height: 1.75;
}

.writing-hero-actions {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
    margin-top: 30px;
}

.writing-rss-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 9px 14px;
    border: 1px solid rgba(16, 185, 129, 0.3);
    border-radius: 999px;
    background: rgba(16, 185, 129, 0.08);
    color: #a7f3d0;
    font-family: var(--font-mono);
    font-size: 12px;
    text-decoration: none;
    transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.writing-rss-link:hover {
    background: rgba(16, 185, 129, 0.15);
    border-color: rgba(16, 185, 129, 0.5);
    transform: translateY(-1px);
}

.writing-count {
    color: var(--text-dim);
    font-family: var(--font-mono);
    font-size: 12px;
}

.writing-index {
    padding: 56px 0 88px;
}

.writing-featured {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 32px;
    align-items: center;
    padding: 34px 36px;
    border: 1px solid rgba(16, 185, 129, 0.24);
    border-radius: 18px;
    background:
        linear-gradient(135deg, rgba(16, 185, 129, 0.08) 0%, rgba(0, 243, 255, 0.03) 48%, rgba(14, 22, 40, 0.8) 100%);
    text-decoration: none;
    color: inherit;
    transition: border-color 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
}

.writing-featured:hover {
    border-color: rgba(16, 185, 129, 0.45);
    transform: translateY(-2px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
}

.writing-featured-copy h2 {
    font-family: var(--font-heading);
    font-size: clamp(1.5rem, 2.8vw, 2.25rem);
    line-height: 1.16;
    letter-spacing: -0.025em;
    color: var(--text-white);
    margin: 14px 0 12px;
}

.writing-featured-copy p {
    max-width: 720px;
    color: var(--text-secondary);
    font-size: 15.5px;
}

.writing-featured-mark {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 18px;
    color: rgba(16, 185, 129, 0.55);
}

.writing-featured-mark span {
    font-family: var(--font-mono);
    font-size: 12px;
    letter-spacing: 0.08em;
    color: var(--text-dim);
}

.writing-featured-mark .bi-icon {
    width: 52px;
    height: 52px;
    opacity: 0.45;
}

.writing-meta {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    color: var(--text-dim);
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.02em;
}

.writing-category {
    display: inline-flex;
    align-items: center;
    padding: 3px 8px;
    border-radius: 999px;
    border: 1px solid rgba(16, 185, 129, 0.28);
    background: rgba(16, 185, 129, 0.1);
    color: #a7f3d0;
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.writing-read {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 18px;
    color: #34d399;
    font-family: var(--font-heading);
    font-size: 13.5px;
    font-weight: 600;
}

.writing-section-head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 16px;
    margin: 56px 0 20px;
}

.writing-section-head h2 {
    font-family: var(--font-heading);
    font-size: 1.35rem;
    letter-spacing: -0.015em;
    color: var(--text-white);
}

.writing-section-head span {
    color: var(--text-dim);
    font-family: var(--font-mono);
    font-size: 11px;
}

.writing-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
}

.writing-card {
    display: flex;
    flex-direction: column;
    min-height: 100%;
    padding: 26px;
    border: 1px solid var(--border-glass);
    border-radius: 14px;
    background: rgba(14, 22, 40, 0.72);
    color: inherit;
    text-decoration: none;
    transition: border-color 0.22s ease, background 0.22s ease, transform 0.22s ease;
}

.writing-card:hover {
    border-color: rgba(16, 185, 129, 0.32);
    background: rgba(19, 29, 54, 0.8);
    transform: translateY(-2px);
}

.writing-card h3 {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    line-height: 1.25;
    letter-spacing: -0.018em;
    color: var(--text-white);
    margin: 14px 0 10px;
}

.writing-card p {
    color: var(--text-secondary);
    font-size: 14.5px;
    line-height: 1.65;
    flex-grow: 1;
}

.writing-card-foot {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-top: 22px;
    padding-top: 14px;
    border-top: 1px solid rgba(255, 255, 255, 0.07);
    color: var(--text-dim);
    font-family: var(--font-mono);
    font-size: 11px;
}

.writing-card-foot .writing-read {
    margin-top: 0;
    font-size: 12px;
}

.writing-cta {
    padding: 56px 0;
    border-top: 1px solid var(--border-glass);
    background: rgba(10, 15, 29, 0.5);
}

.writing-cta-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
}

.writing-cta-label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-dim);
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.writing-cta h2 {
    max-width: 680px;
    font-family: var(--font-heading);
    font-size: clamp(1.4rem, 2.6vw, 2rem);
    line-height: 1.2;
    letter-spacing: -0.02em;
    color: var(--text-white);
}

/* --------------------------------------------------------------------------
   Article page
   -------------------------------------------------------------------------- */

.article-shell {
    padding-bottom: 40px;
}

.article-header {
    padding: 64px 0 44px;
    border-bottom: 1px solid var(--border-glass);
}

.article-header-inner {
    max-width: 900px;
}

.article-back {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 28px;
    color: var(--text-dim);
    font-family: var(--font-mono);
    font-size: 11.5px;
    text-decoration: none;
    transition: color 0.2s ease;
}

.article-back:hover {
    color: #34d399;
}

.article-meta {
    margin-bottom: 18px;
}

.article-header h1 {
    max-width: 860px;
    font-family: var(--font-heading);
    font-size: clamp(2.1rem, 4.4vw, 3.5rem);
    line-height: 1.08;
    letter-spacing: -0.035em;
    color: var(--text-white);
    margin-bottom: 20px;
}

.article-deck {
    max-width: 760px;
    color: var(--text-secondary);
    font-size: 18px;
    line-height: 1.7;
}

.article-byline {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 24px;
    color: var(--text-dim);
    font-family: var(--font-mono);
    font-size: 11.5px;
}

.article-byline strong {
    color: var(--text-primary);
    font-weight: 600;
}

.article-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 280px;
    gap: 56px;
    align-items: start;
    padding: 52px 0 36px;
}

.article-body {
    max-width: 760px;
    color: #cbd5e1;
    font-size: 16.5px;
    line-height: 1.82;
}

.article-body p {
    margin: 1.15em 0;
}

.article-body .article-lead {
    margin-top: 0;
    padding-bottom: 1.1em;
    border-bottom: 1px solid rgba(255, 255, 255, 0.07);
    color: #e2e8f0;
    font-size: 1.12em;
    line-height: 1.75;
}

.article-body h2 {
    margin: 2.4em 0 0.65em;
    font-family: var(--font-heading);
    font-size: 1.55rem;
    line-height: 1.25;
    letter-spacing: -0.02em;
    color: var(--text-white);
}

.article-body h3 {
    margin: 1.9em 0 0.5em;
    font-family: var(--font-heading);
    font-size: 1.15rem;
    line-height: 1.35;
    letter-spacing: -0.01em;
    color: #f1f5f9;
}

.article-body ul,
.article-body ol {
    margin: 1.1em 0 1.3em;
    padding-left: 1.35em;
}

.article-body li {
    margin: 0.45em 0;
    padding-left: 0.2em;
}

.article-body li::marker {
    color: #34d399;
}

.article-body strong {
    color: #f8fafc;
    font-weight: 600;
}

.article-body em {
    color: #e2e8f0;
}

.article-body a {
    color: #34d399;
    text-decoration: underline;
    text-underline-offset: 3px;
}

.article-body code {
    padding: 2px 5px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 5px;
    background: rgba(255, 255, 255, 0.05);
    color: #a7f3d0;
    font-family: var(--font-mono);
    font-size: 0.86em;
}

.article-body pre {
    margin: 1.4em 0;
    padding: 18px;
    overflow-x: auto;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 10px;
    background: rgba(5, 8, 17, 0.8);
}

.article-body pre code {
    padding: 0;
    border: 0;
    background: transparent;
    color: #d1fae5;
}

.article-body blockquote {
    margin: 1.6em 0;
    padding: 4px 0 4px 20px;
    border-left: 3px solid rgba(16, 185, 129, 0.45);
    color: var(--text-secondary);
    font-style: italic;
}

.article-callout {
    margin: 1.8em 0;
    padding: 18px 20px;
    border: 1px solid rgba(16, 185, 129, 0.22);
    border-left: 3px solid var(--emerald);
    border-radius: 10px;
    background: rgba(16, 185, 129, 0.07);
    color: #d1fae5;
    font-size: 14.5px;
    line-height: 1.7;
}

.article-callout strong {
    color: #ecfdf5;
}

.article-checklist {
    list-style: none;
    padding-left: 0;
}

.article-checklist li {
    position: relative;
    padding-left: 26px;
}

.article-checklist li::before {
    content: "✓";
    position: absolute;
    left: 0;
    top: 0.05em;
    color: #34d399;
    font-weight: 700;
}

.article-aside {
    position: sticky;
    top: 96px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.article-aside-card {
    padding: 20px;
    border: 1px solid var(--border-glass);
    border-radius: 14px;
    background: rgba(14, 22, 40, 0.7);
}

.article-aside-label {
    display: block;
    margin-bottom: 10px;
    color: var(--text-dim);
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.article-aside-card > strong {
    display: block;
    color: var(--text-white);
    font-family: var(--font-heading);
    font-size: 15px;
}

.article-aside-card p {
    margin: 8px 0 14px;
    color: var(--text-secondary);
    font-size: 12.5px;
    line-height: 1.6;
}

.article-aside-card > a {
    color: #34d399;
    font-family: var(--font-heading);
    font-size: 12.5px;
    font-weight: 600;
    text-decoration: none;
}

.article-aside-card > a:hover {
    text-decoration: underline;
    text-underline-offset: 3px;
}

.article-aside-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
    list-style: none;
    margin: 0;
    padding: 0;
}

.article-aside-list a {
    color: var(--text-secondary);
    font-size: 12.5px;
    line-height: 1.45;
    text-decoration: none;
    transition: color 0.2s ease;
}

.article-aside-list a:hover {
    color: #34d399;
}

.article-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding-top: 26px;
    padding-bottom: 56px;
    border-top: 1px solid var(--border-glass);
}

.article-footer a {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    color: var(--text-dim);
    font-family: var(--font-mono);
    font-size: 11.5px;
    text-decoration: none;
    transition: color 0.2s ease;
}

.article-footer a:hover {
    color: #34d399;
}

/* --------------------------------------------------------------------------
   Responsive
   -------------------------------------------------------------------------- */

@media (max-width: 1024px) {
    .article-layout {
        grid-template-columns: 1fr;
        gap: 36px;
    }

    .article-aside {
        position: static;
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 860px) {
    .writing-hero {
        padding: 72px 0 48px;
    }

    .writing-hero h1 {
        font-size: clamp(2.15rem, 8vw, 3.2rem);
    }

    .writing-index {
        padding: 40px 0 64px;
    }

    .writing-featured {
        grid-template-columns: 1fr;
        padding: 26px;
    }

    .writing-featured-mark {
        display: none;
    }

    .writing-grid {
        grid-template-columns: 1fr;
    }

    .writing-cta-inner {
        align-items: flex-start;
        flex-direction: column;
    }

    .writing-cta-inner .btn {
        width: 100%;
        justify-content: center;
    }

    .article-header {
        padding: 48px 0 36px;
    }

    .article-header h1 {
        font-size: clamp(1.9rem, 7vw, 2.7rem);
    }

    .article-deck {
        font-size: 16.5px;
    }

    .article-layout {
        padding-top: 36px;
    }

    .article-body {
        font-size: 16px;
    }
}

@media (max-width: 600px) {
    .writing-hero {
        padding: 56px 0 40px;
    }

    .writing-hero-deck {
        font-size: 15.5px;
    }

    .writing-section-head {
        align-items: flex-start;
        flex-direction: column;
        gap: 6px;
        margin-top: 40px;
    }

    .writing-featured {
        padding: 22px;
    }

    .writing-card {
        padding: 22px;
    }

    .article-header {
        padding-top: 40px;
    }

    .article-byline {
        line-height: 1.6;
    }

    .article-aside {
        grid-template-columns: 1fr;
    }

    .article-footer {
        align-items: flex-start;
        flex-direction: column;
    }
}