/* ============================================================
   Enginerd — terminal-flavored design system.
   Shared by every page. Keep page-specific CSS out of templates.
   ============================================================ */

/* --- Reset & tokens ---------------------------------------- */

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

:root {
    --bg: #0d1117;
    --bg-secondary: #161b22;
    --text: #c9d1d9;
    --text-secondary: #8b949e;
    --accent: #58a6ff;
    --accent-hover: #79c0ff;
    --border: #30363d;
    --code-bg: #161b22;
    --success: #3fb950;
    --term-red: #ff7b72;
    --term-blue: #a5d6ff;
    --term-muted: #6e7681;

    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica', Arial, sans-serif;
    --font-mono: 'SF Mono', 'Consolas', 'Liberation Mono', 'Courier New', monospace;
}

body {
    font-family: var(--font-sans);
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 20px;
}

a {
    color: var(--accent);
    text-decoration: none;
    transition: color 0.2s;
}

a:hover {
    color: var(--accent-hover);
}

/* --- Header / nav ------------------------------------------ */

header {
    border-bottom: 1px solid var(--border);
    padding: 20px 0;
    margin-bottom: 60px;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 24px;
    font-weight: 700;
    color: var(--accent);
    font-family: var(--font-mono);
    display: flex;
    align-items: center;
    gap: 8px;
}

.logo::before {
    content: '$ ';
    color: var(--text-secondary);
}

.logo-cursor {
    display: inline-block;
    width: 2px;
    height: 20px;
    background: var(--accent);
    animation: blink 1s step-end infinite;
    margin-left: 2px;
}

@keyframes blink {
    50% { opacity: 0; }
}

nav ul {
    display: flex;
    gap: 30px;
    list-style: none;
}

nav ul a {
    color: var(--text);
    font-size: 14px;
}

nav ul a:hover {
    color: var(--accent);
}

nav ul a::before {
    content: './';
    color: var(--text-secondary);
    font-family: var(--font-mono);
    font-size: 12px;
    margin-right: 2px;
}

/* --- Hero --------------------------------------------------- */

.hero {
    margin-bottom: 60px;
    padding: 40px 0;
    display: flex;
    gap: 40px;
    align-items: flex-start;
}

.hero-avatar {
    flex-shrink: 0;
    width: 120px;
    height: 120px;
    border-radius: 12px;
    border: 2px solid var(--border);
    overflow: hidden;
}

.hero-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.hero-content {
    flex: 1;
}

.hero h1 {
    font-size: 42px;
    margin-bottom: 16px;
    font-weight: 700;
    line-height: 1.2;
}

.hero p {
    font-size: 20px;
    color: var(--text-secondary);
    max-width: 700px;
    margin-bottom: 24px;
}

.tags {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.tag {
    background: var(--bg-secondary);
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 13px;
    color: var(--accent);
    border: 1px solid var(--border);
}

/* --- About card (floating /* about */ label) --------------- */

.about-section {
    margin-bottom: 60px;
    padding: 30px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
}

.about-section::before {
    content: '/* about */';
    display: block;
    margin-bottom: 16px;
    color: var(--text-secondary);
    font-family: var(--font-mono);
    font-size: 14px;
    font-style: italic;
}

.about-section p {
    color: var(--text);
    line-height: 1.8;
    font-size: 16px;
}

.about-section p + p {
    margin-top: 16px;
}

/* --- Mission block ----------------------------------------- */

.goals-section {
    margin-bottom: 60px;
    padding: 25px 30px;
    border-left: 3px solid var(--accent);
    background: linear-gradient(90deg, rgba(88, 166, 255, 0.05) 0%, transparent 100%);
    border-radius: 0 8px 8px 0;
}

.goals-section .goals-prefix {
    color: var(--accent);
    font-family: var(--font-mono);
    font-style: normal;
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 1px;
    display: block;
    margin-bottom: 10px;
}

.goals-section p {
    color: var(--text-secondary);
    font-size: 17px;
    font-style: italic;
    line-height: 1.7;
}

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

.cta-row {
    display: flex;
    gap: 16px;
    margin-bottom: 60px;
    flex-wrap: wrap;
}

.cta-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 500;
    transition: background 0.2s, color 0.2s, border-color 0.2s, transform 0.2s;
}

.cta-btn::after {
    content: ' \2192';
}

.cta-btn-primary {
    background: var(--accent);
    color: var(--bg);
}

.cta-btn-primary:hover {
    background: var(--accent-hover);
    color: var(--bg);
    transform: translateY(-1px);
}

.cta-btn-secondary {
    background: var(--bg-secondary);
    color: var(--text);
    border: 1px solid var(--border);
}

.cta-btn-secondary:hover {
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-1px);
}

/* --- Section titles (> prefix) ----------------------------- */

.section-title {
    font-size: 28px;
    margin-bottom: 30px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 10px;
}

.section-title::before {
    content: '>';
    color: var(--accent);
    font-family: var(--font-mono);
}

/* --- Skills grid ------------------------------------------- */

.skills-section {
    margin-bottom: 60px;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 10px;
}

.skill-item {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 10px 14px;
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--text);
    text-align: center;
    transition: border-color 0.2s, color 0.2s;
}

.skill-item:hover {
    border-color: var(--accent);
    color: var(--accent);
}

/* --- Reading list ------------------------------------------ */

.reading-section {
    margin-bottom: 60px;
}

.reading-list {
    display: grid;
    gap: 16px;
}

.reading-item {
    display: flex;
    gap: 16px;
    align-items: center;
    padding: 16px 20px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
}

.reading-icon {
    font-size: 24px;
    flex-shrink: 0;
}

.reading-info h4 {
    font-size: 15px;
    color: var(--text);
    margin-bottom: 4px;
}

.reading-info p {
    font-size: 13px;
    color: var(--text-secondary);
}

.reading-status {
    margin-left: auto;
    font-size: 12px;
    padding: 4px 10px;
    border-radius: 4px;
    font-weight: 600;
    flex-shrink: 0;
}

.status-reading {
    background: rgba(88, 166, 255, 0.15);
    color: var(--accent);
}

.status-queued {
    background: rgba(139, 148, 158, 0.15);
    color: var(--text-secondary);
}

/* --- Terminal window (reusable chrome) --------------------- */

.terminal-window {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
    margin-bottom: 20px;
}

.terminal-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 16px;
    background: rgba(0, 0, 0, 0.3);
    border-bottom: 1px solid var(--border);
}

.terminal-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--border);
}

.terminal-dot:nth-child(1) { background: #ff5f57; }
.terminal-dot:nth-child(2) { background: #febc2e; }
.terminal-dot:nth-child(3) { background: #28c840; }

.terminal-title {
    color: var(--text-secondary);
    font-size: 12px;
    font-family: var(--font-mono);
    margin-left: 8px;
}

.terminal-body {
    padding: 20px;
    font-family: var(--font-mono);
    font-size: 14px;
    line-height: 1.8;
}

.terminal-line {
    margin-bottom: 4px;
}

.terminal-prompt {
    color: var(--success);
}

.terminal-prompt::after {
    content: ' ~ $ ';
    color: var(--text-secondary);
}

.terminal-cmd {
    color: var(--text);
}

.terminal-value {
    color: var(--term-blue);
}

.terminal-output {
    color: var(--text-secondary);
    padding-left: 20px;
}

.terminal-output a {
    color: var(--accent);
    text-decoration: none;
    border-bottom: 1px dashed var(--accent);
}

.terminal-output a:hover {
    border-bottom-style: solid;
}

.terminal-comment {
    color: var(--term-muted);
    font-style: italic;
}

.terminal-blank {
    height: 12px;
}

/* --- Page header (used by blog/projects/about COMING SOON + blog listings) - */

.page-header {
    margin-bottom: 50px;
}

.page-header h1 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 12px;
}

.page-header p {
    font-size: 18px;
    color: var(--text-secondary);
}

.coming-soon-label {
    display: inline-block;
    margin: 12px 0;
    padding: 6px 14px;
    border: 1px solid var(--accent);
    border-radius: 4px;
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--accent);
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

/* --- Post cards (blog listing + featured posts) ------------ */

.posts-grid {
    display: grid;
    gap: 30px;
    margin-bottom: 60px;
}

.post-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 30px;
    transition: border-color 0.2s, transform 0.2s;
    display: block;
    color: inherit;
}

.post-card:hover {
    border-color: var(--accent);
    color: inherit;
    transform: translateY(-2px);
}

.post-meta {
    display: flex;
    gap: 15px;
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.post-card h3 {
    font-size: 22px;
    margin-bottom: 12px;
    color: var(--text);
}

.post-card p {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 15px;
}

.post-topics {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.topic-tag {
    font-size: 12px;
    color: var(--accent);
    background: rgba(88, 166, 255, 0.1);
    padding: 4px 10px;
    border-radius: 4px;
}

/* --- Blog filter row (tag filter on /blog when live) ------- */

.tag-filter {
    margin-bottom: 40px;
    color: var(--text-secondary);
    font-size: 13px;
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    align-items: center;
}

.filter-tag {
    font-family: var(--font-mono);
    color: var(--accent);
    background: rgba(88, 166, 255, 0.1);
    padding: 4px 10px;
    border-radius: 4px;
}

.filter-tag:hover {
    background: rgba(88, 166, 255, 0.2);
}

/* --- Project cards (projects listing) ---------------------- */

.projects-grid {
    display: grid;
    gap: 30px;
    margin-bottom: 60px;
}

.project-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 30px;
    transition: border-color 0.2s, transform 0.2s;
}

.project-card:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
}

.project-card-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 15px;
    margin-bottom: 12px;
}

.project-card-header h3 {
    font-size: 22px;
    color: var(--text);
    margin: 0;
}

.project-card p {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 15px;
}

.project-status {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 4px;
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    flex-shrink: 0;
}

.status-active {
    background: rgba(63, 185, 80, 0.15);
    color: var(--success);
}

.status-wip {
    background: rgba(210, 153, 34, 0.15);
    color: #d29922;
}

.status-archived {
    background: rgba(139, 148, 158, 0.15);
    color: var(--text-secondary);
}

.project-card-footer {
    margin-top: 20px;
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.project-link {
    color: var(--accent);
    font-size: 14px;
}

.project-link:hover {
    color: var(--accent-hover);
}

/* --- Article (single blog post) ---------------------------- */

.article-header {
    margin-bottom: 40px;
    padding-bottom: 30px;
    border-bottom: 1px solid var(--border);
}

.article-meta {
    display: flex;
    gap: 15px;
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.article-header h1 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 16px;
    line-height: 1.2;
}

.article-description {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.6;
}

.article-topics {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.article-content {
    font-size: 16px;
    line-height: 1.8;
}

.article-content p {
    margin-bottom: 20px;
}

.article-content h2 {
    font-size: 26px;
    margin: 40px 0 16px;
    font-weight: 600;
}

.article-content h3 {
    font-size: 20px;
    margin: 30px 0 12px;
    font-weight: 600;
}

.article-content ul,
.article-content ol {
    margin: 0 0 20px 24px;
}

.article-content li {
    margin-bottom: 6px;
}

.article-content blockquote {
    border-left: 3px solid var(--accent);
    padding: 10px 20px;
    margin: 20px 0;
    background: rgba(88, 166, 255, 0.05);
    color: var(--text-secondary);
    font-style: italic;
}

.article-content hr {
    border: none;
    border-top: 1px solid var(--border);
    margin: 40px 0;
}

/* --- Inline code (terminal pill) --------------------------- */

code {
    background: var(--code-bg);
    color: var(--accent);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 2px 6px;
    font-family: var(--font-mono);
    font-size: 0.9em;
}

/* --- Block code (terminal-flavored box) -------------------- */

pre {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 16px 20px;
    overflow-x: auto;
    margin: 20px 0;
    font-family: var(--font-mono);
    font-size: 13px;
    line-height: 1.6;
}

pre code {
    background: none;
    border: none;
    padding: 0;
    color: var(--text);
    font-size: inherit;
}

/* --- Comments section -------------------------------------- */

.comments-section {
    margin-top: 60px;
    padding-top: 40px;
    border-top: 1px solid var(--border);
}

.comments-section h2 {
    font-size: 22px;
    margin-bottom: 24px;
}

#comments-list {
    margin-bottom: 40px;
}

.comment {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 16px;
}

.comment-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: 10px;
    font-size: 13px;
    gap: 10px;
}

.comment-author {
    color: var(--accent);
    font-family: var(--font-mono);
}

.comment-date {
    color: var(--text-secondary);
}

.comment-content {
    color: var(--text);
    line-height: 1.7;
    white-space: pre-wrap;
}

.no-comments {
    color: var(--text-secondary);
    font-style: italic;
}

.comment-form {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 24px;
}

.comment-form h3 {
    font-size: 18px;
    margin-bottom: 20px;
}

.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    color: var(--text-secondary);
    font-size: 13px;
    font-family: var(--font-mono);
}

.form-group input,
.form-group textarea {
    width: 100%;
    background: var(--bg);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 10px 12px;
    font-family: var(--font-sans);
    font-size: 14px;
}

.form-group textarea {
    font-family: var(--font-mono);
    resize: vertical;
    min-height: 120px;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
}

.btn-primary {
    background: var(--accent);
    color: var(--bg);
    border: none;
    padding: 10px 20px;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
}

.btn-primary:hover {
    background: var(--accent-hover);
}

.btn-primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

#form-message {
    margin-top: 12px;
    font-size: 13px;
}

#form-message.success {
    color: var(--success);
}

#form-message.error {
    color: var(--term-red);
}

/* Honeypot: off-screen, invisible, keyboard-skipped. */
.hp-field {
    position: absolute;
    left: -9999px;
    top: auto;
    width: 1px;
    height: 1px;
    overflow: hidden;
    opacity: 0;
    pointer-events: none;
}

/* --- Admin panel ------------------------------------------- */

.admin-section {
    margin-bottom: 40px;
}

.admin-section h2 {
    font-size: 20px;
    margin-bottom: 20px;
    font-weight: 600;
}

.admin-comment {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 16px;
}

.admin-comment .comment-info {
    display: flex;
    gap: 20px;
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 10px;
    font-family: var(--font-mono);
}

.admin-comment .comment-actions {
    margin-top: 16px;
    display: flex;
    gap: 10px;
}

.btn-approve,
.btn-delete {
    padding: 6px 14px;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: var(--bg);
    color: var(--text);
    font-size: 13px;
    font-family: var(--font-mono);
    cursor: pointer;
    transition: border-color 0.2s, color 0.2s;
}

.btn-approve:hover {
    border-color: var(--success);
    color: var(--success);
}

.btn-delete:hover {
    border-color: var(--term-red);
    color: var(--term-red);
}

/* --- Footer ------------------------------------------------ */

footer {
    border-top: 1px solid var(--border);
    padding: 40px 0;
    margin-top: 80px;
    text-align: center;
    color: var(--text-secondary);
    font-size: 14px;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 20px;
}

.social-links a {
    color: var(--text-secondary);
}

.social-links a:hover {
    color: var(--accent);
}

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

@media (max-width: 768px) {
    .hero {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .hero h1 {
        font-size: 32px;
    }

    .hero p {
        font-size: 18px;
    }

    .tags {
        justify-content: center;
    }

    nav ul {
        gap: 15px;
    }

    .page-header h1 {
        font-size: 28px;
    }

    .article-header h1 {
        font-size: 28px;
    }

    .cta-row {
        flex-direction: column;
    }

    .cta-btn {
        justify-content: center;
    }

    .reading-item {
        flex-direction: column;
        text-align: center;
    }

    .reading-status {
        margin-left: 0;
    }

    .comment-header {
        flex-direction: column;
        gap: 2px;
    }
}