/* ══════════════════════════════════════════
   Some Wild Ideas — Site Stylesheet
   ══════════════════════════════════════════ */

/* ── Reset & Base ── */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
    --color-bg: #fafafa;
    --color-surface: #ffffff;
    --color-text: #2c3e50;
    --color-text-light: #6b7c8d;
    --color-text-muted: #95a5a6;
    --color-heading: #1a252f;
    --color-accent: #2980b9;
    --color-accent-light: #e8f4f8;
    --color-border: #ecf0f1;
    --color-dark: #1a1a2e;
    --color-dark-surface: #16213e;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-heading: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-serif: 'Georgia', 'Times New Roman', serif;
    --max-width: 780px;
    --max-width-wide: 1100px;
}

html { font-size: 17px; scroll-behavior: smooth; }

body {
    font-family: var(--font-body);
    line-height: 1.75;
    color: var(--color-text);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ── Navigation ── */
.site-nav {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
    padding: 0.8rem 2rem;
}

.nav-inner {
    max-width: var(--max-width-wide);
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.7rem;
    text-decoration: none;
    color: var(--color-heading);
}

.nav-brand img {
    width: 36px;
    height: 36px;
    border-radius: 8px;
}

.nav-brand span {
    font-weight: 700;
    font-size: 1.05rem;
    letter-spacing: -0.02em;
}

.nav-links {
    display: flex;
    gap: 2rem;
    list-style: none;
}

.nav-links a {
    text-decoration: none;
    color: var(--color-text-light);
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.2s;
}

.nav-links a:hover { color: var(--color-accent); }
.nav-links a.active { color: var(--color-heading); }

/* ── Homepage Hero ── */
.hero {
    background: linear-gradient(135deg, var(--color-dark) 0%, var(--color-dark-surface) 50%, #0f3460 100%);
    color: white;
    padding: 6rem 2rem 5rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: radial-gradient(ellipse at 30% 20%, rgba(100, 200, 255, 0.06) 0%, transparent 60%),
                radial-gradient(ellipse at 70% 80%, rgba(255, 180, 48, 0.04) 0%, transparent 50%);
}

.hero-content { position: relative; z-index: 1; }

.hero-logo {
    width: 90px;
    height: 90px;
    border-radius: 20px;
    margin-bottom: 1.5rem;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
}

.hero h1 {
    font-size: 3rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    margin-bottom: 0.5rem;
    line-height: 1.1;
}

.hero-tagline {
    font-size: 1.15rem;
    color: rgba(255, 255, 255, 0.65);
    font-weight: 400;
    letter-spacing: 0.02em;
    margin-bottom: 0.5rem;
}

.hero-description {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.5);
    max-width: 500px;
    margin: 1.5rem auto 0;
    line-height: 1.6;
}

/* ── Articles List ── */
.articles-section {
    max-width: var(--max-width-wide);
    margin: 0 auto;
    padding: 4rem 2rem;
}

.section-label {
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-muted);
    margin-bottom: 2rem;
}

.article-card {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 2.5rem;
    background: var(--color-surface);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06), 0 4px 16px rgba(0, 0, 0, 0.04);
    transition: box-shadow 0.3s, transform 0.2s;
    text-decoration: none;
    color: inherit;
    margin-bottom: 2rem;
}

.article-card:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08), 0 8px 30px rgba(0, 0, 0, 0.06);
    transform: translateY(-2px);
}

.article-card-image {
    width: 100%;
    height: 100%;
    min-height: 280px;
    object-fit: cover;
}

.article-card-content {
    padding: 2.5rem 2.5rem 2.5rem 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.article-card-date {
    font-size: 0.82rem;
    color: var(--color-text-muted);
    font-weight: 500;
    margin-bottom: 0.6rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.article-card-title {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--color-heading);
    margin-bottom: 0.3rem;
    letter-spacing: -0.02em;
    line-height: 1.25;
}

.article-card-subtitle {
    font-size: 1rem;
    color: var(--color-accent);
    font-style: italic;
    margin-bottom: 1rem;
}

.article-card-excerpt {
    font-size: 0.95rem;
    color: var(--color-text-light);
    line-height: 1.65;
}

.read-more {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    margin-top: 1.2rem;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-accent);
    text-decoration: none;
}

.read-more::after { content: ' →'; }

/* ── Article Page ── */
.article-hero {
    background: linear-gradient(135deg, var(--color-dark) 0%, var(--color-dark-surface) 100%);
    color: white;
    padding: 5rem 2rem 4rem;
    text-align: center;
}

.article-hero h1 {
    font-size: 2.8rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    max-width: var(--max-width);
    margin: 0 auto 0.4rem;
    line-height: 1.15;
}

.article-hero .subtitle {
    font-size: 1.15rem;
    color: rgba(255, 255, 255, 0.6);
    font-style: italic;
    margin-bottom: 1.5rem;
}

.article-meta {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.45);
}

.article-meta .author { font-weight: 600; color: rgba(255, 255, 255, 0.7); }

/* ── Article Body ── */
.article-body {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 3rem 2rem 5rem;
}

.article-body h2 {
    font-size: 1.7rem;
    font-weight: 700;
    margin: 3rem 0 1.2rem;
    color: var(--color-heading);
    letter-spacing: -0.02em;
    border-bottom: 3px solid var(--color-accent-light);
    padding-bottom: 0.5rem;
}

.article-body h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin: 2rem 0 0.8rem;
    color: var(--color-text);
}

.article-body p {
    margin: 1.1rem 0;
    text-align: justify;
}

.article-body .lede {
    font-size: 1.35rem;
    line-height: 1.7;
    font-weight: 400;
    color: var(--color-heading);
    font-family: var(--font-serif);
    border-left: 4px solid var(--color-accent);
    padding-left: 1.5rem;
    margin: 2rem 0 2.5rem;
    letter-spacing: -0.01em;
}

.article-body blockquote {
    border-left: 4px solid var(--color-accent);
    margin: 2rem 0;
    padding: 1.2rem 1.8rem;
    background: var(--color-accent-light);
    border-radius: 0 8px 8px 0;
    font-family: var(--font-serif);
    font-style: italic;
    color: #34495e;
}

.article-body blockquote p { margin: 0; text-align: left; }

.article-body img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin: 1.5rem 0 0.4rem;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
}

.article-body figure {
    margin: 2rem 0;
}

.article-body figcaption {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    text-align: center;
    margin-top: 0.5rem;
    font-style: italic;
}

/* Screenshot grids */
.phone-screenshots {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.2rem;
    margin: 2rem 0;
}

.phone-screenshots figure { margin: 0; }
.phone-screenshots img { width: 100%; margin: 0; }

.web-screenshot {
    margin: 2rem 0;
}

.web-screenshot img { width: 100%; }

/* ── Companion Documents Sidebar ── */
.companion-docs {
    background: linear-gradient(135deg, #f8f9fa 0%, var(--color-accent-light) 100%);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 2rem;
    margin: 2.5rem 0;
}

.companion-docs h4 {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-text-muted);
    margin-bottom: 1rem;
}

.companion-doc-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1.2rem;
}

.companion-doc-item:last-child { margin-bottom: 0; }

a.companion-doc-item {
    border-radius: 8px;
    padding: 0.8rem;
    margin-left: -0.8rem;
    margin-right: -0.8rem;
    transition: background 0.2s;
}

a.companion-doc-item:hover {
    background: rgba(41, 128, 185, 0.08);
}

a.companion-doc-item:hover .doc-info h5 {
    color: var(--color-accent);
}

.doc-icon {
    width: 40px;
    height: 40px;
    background: var(--color-accent);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.1rem;
    flex-shrink: 0;
}

.doc-info h5 {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--color-heading);
    margin-bottom: 0.2rem;
}

.doc-info p {
    font-size: 0.85rem;
    color: var(--color-text-light);
    line-height: 1.5;
    margin: 0;
    text-align: left;
}

/* ── TSR Callout ── */
.tsr-callout {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 80%, #2d1b69 100%);
    color: #e0e0f0;
    border-radius: 12px;
    padding: 2rem 2.2rem;
    margin: 2rem 0;
    position: relative;
    overflow: hidden;
}

.tsr-callout::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 4px;
    background: linear-gradient(90deg, #ff6b6b, #ffd93d, #6bcbff);
}

.tsr-header {
    font-size: 1.15rem;
    font-weight: 700;
    color: #ffd93d;
    margin-bottom: 0.8rem;
    letter-spacing: -0.01em;
}

.tsr-callout p {
    margin: 0;
    color: #c8c8e0;
    text-align: left;
    line-height: 1.7;
}

.tsr-callout strong {
    color: #ff6b6b;
    font-weight: 700;
    font-size: 1.1em;
}

.tsr-sidenote {
    background: #f0f7ff;
    border-left: 4px solid #ffd93d;
    border-radius: 0 10px 10px 0;
    padding: 1.3rem 1.8rem;
    margin: 1.5rem 0 2rem;
    font-size: 0.92rem;
    font-style: italic;
    color: #4a5568;
}

.tsr-sidenote p {
    margin: 0;
    text-align: left;
}

/* ── References ── */
.references {
    margin-top: 4rem;
    padding-top: 2rem;
    border-top: 2px solid var(--color-border);
}

.references h2 {
    font-size: 1.3rem;
    border-bottom: none !important;
    margin-bottom: 1.5rem;
}

.reference-item {
    font-size: 0.9rem;
    color: var(--color-text-light);
    margin: 0.7rem 0;
    padding-left: 1.5rem;
    text-indent: -1.5rem;
    text-align: left;
}

/* ── Footer ── */
.site-footer {
    background: var(--color-dark);
    color: rgba(255, 255, 255, 0.5);
    padding: 3rem 2rem;
    text-align: center;
    font-size: 0.85rem;
}

.footer-inner {
    max-width: var(--max-width-wide);
    margin: 0 auto;
}

.footer-brand {
    font-weight: 700;
    color: rgba(255, 255, 255, 0.8);
    font-size: 1rem;
    margin-bottom: 0.3rem;
}

.footer-newsletter { margin-bottom: 2.5rem; text-align: center; }

.footer-newsletter-title { font-weight: 700; color: rgba(255,255,255,0.8); font-size: 1.1rem; margin-bottom: 0.3rem; }

.footer-newsletter-desc { color: rgba(255,255,255,0.45); font-size: 0.9rem; margin-bottom: 1rem; }

.newsletter-form { display: flex; gap: 0.5rem; max-width: 420px; margin: 0 auto; }

.newsletter-form input[type="email"] { flex: 1; padding: 0.7rem 1rem; border: 1px solid rgba(255,255,255,0.15); border-radius: 8px; background: rgba(255,255,255,0.08); color: white; font-family: var(--font-body); font-size: 0.9rem; }

.newsletter-form input[type="email"]::placeholder { color: rgba(255,255,255,0.35); }

.newsletter-form button { padding: 0.7rem 1.5rem; border: none; border-radius: 8px; background: var(--color-accent); color: white; font-weight: 600; font-size: 0.9rem; cursor: pointer; transition: background 0.2s; }

.newsletter-form button:hover { background: #2471a3; }

.newsletter-note { font-size: 0.8rem; color: rgba(255,255,255,0.5); margin-top: 0.5rem; }

.footer-links { display: flex; gap: 4rem; justify-content: center; margin-bottom: 2.5rem; }

.footer-col { display: flex; flex-direction: column; gap: 0.4rem; }

.footer-col-title { font-weight: 600; color: rgba(255,255,255,0.7); font-size: 0.85rem; margin-bottom: 0.3rem; }

.footer-col a { color: rgba(255,255,255,0.45); text-decoration: none; font-size: 0.85rem; transition: color 0.2s; }

.footer-col a:hover { color: rgba(255,255,255,0.8); }

.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding-top: 1.5rem; }

/* ── Comments Section ── */
.comments-section { max-width: var(--max-width); margin: 2rem auto; padding: 0 2rem 3rem; }

.comments-title { font-size: 1.3rem; font-weight: 700; color: var(--color-heading); margin-bottom: 1.5rem; }

.comment { border-bottom: 1px solid var(--color-border); padding: 1.2rem 0; }

.comment:last-child { border-bottom: none; }

.comment-meta { font-size: 0.85rem; color: var(--color-text-muted); margin-bottom: 0.4rem; }

.comment-meta strong { color: var(--color-text); }

.comment-body { font-size: 0.95rem; color: var(--color-text); line-height: 1.65; }

.comment-form { margin-top: 2rem; }

.comment-form label { display: block; font-size: 0.85rem; font-weight: 500; color: var(--color-text); margin-bottom: 0.3rem; }

.comment-form input, .comment-form textarea { width: 100%; padding: 0.7rem 1rem; border: 1px solid var(--color-border); border-radius: 8px; font-family: var(--font-body); font-size: 0.9rem; margin-bottom: 1rem; background: var(--color-surface); color: var(--color-text); }

.comment-form textarea { min-height: 120px; resize: vertical; }

.comment-form button { padding: 0.7rem 2rem; border: none; border-radius: 8px; background: var(--color-accent); color: white; font-weight: 600; font-size: 0.9rem; cursor: pointer; transition: background 0.2s; }

.comment-form button:hover { background: #2471a3; }

.comment-form .honeypot { position: absolute; left: -9999px; }

.comment-notice { padding: 1rem; background: var(--color-accent-light); border-radius: 8px; color: var(--color-text); font-size: 0.9rem; margin-top: 1rem; }

/* ── Share Buttons ── */
.share-buttons { max-width: var(--max-width); margin: 0 auto; padding: 2rem 2rem 0; text-align: center; }

/* ── About Page ── */
.about-content {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 4rem 2rem 5rem;
}

.about-content h1 {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--color-heading);
    margin-bottom: 2rem;
    letter-spacing: -0.02em;
}

.about-content p {
    margin: 1.2rem 0;
    color: var(--color-text);
    line-height: 1.8;
}

/* ── Responsive ── */
@media (max-width: 768px) {
    html { font-size: 16px; }

    .hero h1 { font-size: 2.2rem; }
    .hero-logo { width: 70px; height: 70px; }

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

    .article-card-image { min-height: 200px; }

    .article-card-content {
        padding: 1.5rem;
    }

    .article-hero h1 { font-size: 2rem; }

    .article-body { padding: 2rem 1.2rem 3rem; }

    .phone-screenshots {
        grid-template-columns: 1fr;
    }

    .nav-links { gap: 1rem; }

    .site-nav { padding: 0.8rem 1rem; }

    .footer-links { flex-direction: column; gap: 2rem; }

    .newsletter-form { flex-direction: column; }

    .newsletter-form input[type="email"],
    .newsletter-form button { width: 100%; }
}

@media (max-width: 480px) {
    .hero { padding: 4rem 1.5rem 3rem; }
    .hero h1 { font-size: 1.8rem; }
    .article-hero h1 { font-size: 1.7rem; }
    .article-body h2 { font-size: 1.4rem; }
}