/* ═══════════════════════════════════════════════════
   HIRAL RAJGOR PORTFOLIO — app.css
   Theme: Dark editorial minimal — engineered precision
   Fonts: Syne (display) + DM Sans (body) + DM Mono (code/accent)
═══════════════════════════════════════════════════ */

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

:root {
    --bg:         #0a0a0a;
    --bg-2:       #111111;
    --bg-3:       #161616;
    --surface:    #1a1a1a;
    --border:     #222222;
    --border-2:   #2e2e2e;
    --accent:     #e8ff47;      /* electric lime */
    --accent-2:   #4fffb0;      /* mint for secondary */
    --text:       #f0f0f0;
    --text-2:     #a0a0a0;
    --text-3:     #606060;
    --navy:       #1B3A5C;
    --font-display: 'Syne', sans-serif;
    --font-body:    'DM Sans', sans-serif;
    --font-mono:    'DM Mono', monospace;
    --radius:     4px;
    --radius-lg:  8px;
    --max-w:      1160px;
    --section-gap: 120px;
}

html { font-size: 16px; scroll-behavior: smooth; }

body {
    background: var(--bg);
    color: var(--text);
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img { display: block; width: 100%; height: 100%; object-fit: cover; }
strong { font-weight: 600; }
em { font-style: italic; }

/* ── CONTAINER ───────────────────────────────────── */
.container {
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 0 40px;
}

@media (max-width: 768px) { .container { padding: 0 20px; } }

/* ── SECTION SPACING ─────────────────────────────── */
.section { padding: var(--section-gap) 0; }

/* ── SECTION LABELS ──────────────────────────────── */
.section-label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    color: var(--accent);
    text-transform: uppercase;
    margin-bottom: 16px;
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    line-height: 1.1;
    color: var(--text);
    margin-bottom: 16px;
}

.section-sub {
    color: var(--text-2);
    font-size: 1.05rem;
    max-width: 520px;
}

.section-header { margin-bottom: 64px; }

.section-header-row {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 56px;
    gap: 24px;
}

/* ── BUTTONS ─────────────────────────────────────── */
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--accent);
    color: #0a0a0a;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 0.875rem;
    letter-spacing: 0.02em;
    padding: 14px 28px;
    border-radius: var(--radius);
    border: none;
    cursor: pointer;
    transition: background 0.2s, transform 0.15s;
}
.btn-primary:hover { background: #d4eb2f; transform: translateY(-1px); }

.btn-ghost {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: transparent;
    color: var(--text);
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 0.875rem;
    padding: 13px 26px;
    border-radius: var(--radius);
    border: 1px solid var(--border-2);
    cursor: pointer;
    transition: border-color 0.2s, color 0.2s, transform 0.15s;
}
.btn-ghost:hover { border-color: var(--text-2); color: var(--accent); transform: translateY(-1px); }

.btn-full { width: 100%; justify-content: center; }

/* ── TAGS ────────────────────────────────────────── */
.tag {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    padding: 4px 10px;
    border-radius: 2px;
    background: var(--bg-3);
    border: 1px solid var(--border);
    color: var(--text-2);
    letter-spacing: 0.04em;
}

/* ── REVEAL ANIMATIONS ───────────────────────────── */
.reveal {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 0.65s ease, transform 0.65s ease;
}
.reveal.visible { opacity: 1; transform: translateY(0); }
.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }
.delay-5 { transition-delay: 0.5s; }

/* ══════════════════════════════════════════════════
   NAVBAR
══════════════════════════════════════════════════ */
#navbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    background: rgba(10,10,10,0);
    border-bottom: 1px solid transparent;
    transition: background 0.3s, border-color 0.3s;
}
#navbar.scrolled {
    background: rgba(10,10,10,0.92);
    border-bottom-color: var(--border);
    backdrop-filter: blur(12px);
}

.nav-inner {
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 0 40px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--text);
    letter-spacing: -0.02em;
}
.nav-logo .dot { color: var(--accent); }

.nav-links { display: flex; align-items: center; gap: 32px; }
.nav-links a {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-2);
    transition: color 0.2s;
}
.nav-links a:hover { color: var(--text); }
.nav-links .nav-cta {
    background: var(--accent);
    color: #0a0a0a;
    font-weight: 700;
    padding: 8px 18px;
    border-radius: var(--radius);
    font-size: 0.8rem;
}
.nav-links .nav-cta:hover { background: #d4eb2f; color: #0a0a0a; }

.nav-hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}
.nav-hamburger span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--text);
    transition: transform 0.2s, opacity 0.2s;
}

.nav-mobile {
    display: none;
    flex-direction: column;
    padding: 16px 40px 24px;
    border-top: 1px solid var(--border);
    background: rgba(10,10,10,0.96);
    gap: 16px;
}
.nav-mobile a { font-size: 1rem; color: var(--text-2); }
.nav-mobile a:hover { color: var(--accent); }
.nav-mobile.open { display: flex; }

@media (max-width: 768px) {
    .nav-links { display: none; }
    .nav-hamburger { display: flex; }
    .nav-inner { padding: 0 20px; }
}

/* ══════════════════════════════════════════════════
   HERO
══════════════════════════════════════════════════ */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding-top: 64px;
}

.hero-bg-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(var(--border) 1px, transparent 1px),
        linear-gradient(90deg, var(--border) 1px, transparent 1px);
    background-size: 60px 60px;
    opacity: 0.3;
    mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 30%, transparent 100%);
}

.hero-inner {
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 80px 40px;
    position: relative;
    z-index: 1;
}

.hero-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--accent);
    letter-spacing: 0.08em;
    border: 1px solid rgba(232, 255, 71, 0.3);
    padding: 6px 14px;
    border-radius: 100px;
    margin-bottom: 32px;
}
.tag-dot {
    width: 6px; height: 6px;
    border-radius: 50%;
    background: var(--accent);
    animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.4; transform: scale(0.8); }
}

.hero-name {
    font-family: var(--font-display);
    font-size: clamp(4rem, 10vw, 8rem);
    font-weight: 800;
    line-height: 0.95;
    letter-spacing: -0.03em;
    color: var(--text);
    margin-bottom: 28px;
}
.hero-name-accent { color: var(--accent); }

.hero-title {
    font-family: var(--font-mono);
    font-size: clamp(0.75rem, 1.5vw, 0.9rem);
    color: var(--text-2);
    letter-spacing: 0.05em;
    margin-bottom: 24px;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
}
.hero-title-sep { color: var(--border-2); }

.hero-sub {
    font-size: clamp(1rem, 2vw, 1.15rem);
    color: var(--text-2);
    max-width: 580px;
    line-height: 1.7;
    margin-bottom: 40px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 72px;
}

.hero-stats {
    display: flex;
    align-items: center;
    gap: 0;
    flex-wrap: wrap;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    display: inline-flex;
}

.stat {
    padding: 20px 32px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    border-right: 1px solid var(--border);
}
.stat:last-child { border-right: none; }

.stat-num {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 800;
    color: var(--text);
    line-height: 1;
}
.stat-plus { font-size: 1.2rem; color: var(--accent); font-weight: 700; }
.stat-label { font-size: 0.72rem; color: var(--text-3); font-family: var(--font-mono); letter-spacing: 0.05em; }
.stat-perf {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--accent-2);
    line-height: 1;
}
.stat-divider { display: none; }

.hero-scroll-hint {
    position: absolute;
    bottom: 40px;
    right: 40px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    opacity: 0.4;
}
.hero-scroll-hint span {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    letter-spacing: 0.15em;
    writing-mode: vertical-rl;
    color: var(--text-2);
}
.scroll-line {
    width: 1px;
    height: 60px;
    background: linear-gradient(to bottom, var(--text-2), transparent);
    animation: scrollDrop 2s ease-in-out infinite;
}
@keyframes scrollDrop {
    0% { transform: scaleY(0); transform-origin: top; }
    50% { transform: scaleY(1); transform-origin: top; }
    100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ══════════════════════════════════════════════════
   ABOUT
══════════════════════════════════════════════════ */
.about { background: var(--bg-2); }

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 80px;
    align-items: start;
}

.about-photo-wrap {
    position: relative;
    margin-top: 40px;
    max-width: 280px;
}

.photo-placeholder {
    width: 100%;
    aspect-ratio: 4/5;
    background: var(--surface);
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-3);
    border-radius: var(--radius);
}

.photo-accent {
    position: absolute;
    inset: -8px -8px 8px 8px;
    border: 1px solid var(--accent);
    border-radius: var(--radius);
    z-index: -1;
    opacity: 0.4;
}

.about-lead {
    font-family: var(--font-display);
    font-size: 1.3rem;
    font-weight: 600;
    line-height: 1.5;
    color: var(--text);
    margin-bottom: 24px;
}

.about-body {
    color: var(--text-2);
    margin-bottom: 20px;
    line-height: 1.8;
}
.about-body strong { color: var(--text); }
.about-body em { color: var(--accent-2); font-style: normal; font-weight: 500; }

.about-links { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 40px; margin-top: 32px; }

.about-meta {
    border-top: 1px solid var(--border);
    padding-top: 24px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.meta-item { display: flex; gap: 16px; }
.meta-key {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--text-3);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    min-width: 80px;
    padding-top: 2px;
}
.meta-val { font-size: 0.9rem; color: var(--text-2); }
.meta-link:hover { color: var(--accent); }

/* ══════════════════════════════════════════════════
   EXPERTISE STRIP (marquee)
══════════════════════════════════════════════════ */
.expertise-strip {
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    background: var(--bg-3);
    padding: 18px 0;
    overflow: hidden;
}
.strip-track {
    display: flex;
    align-items: center;
    gap: 24px;
    white-space: nowrap;
    animation: marquee 30s linear infinite;
    width: max-content;
}
.strip-track span {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--text-2);
    letter-spacing: 0.04em;
}
.strip-dot { color: var(--accent) !important; }

@keyframes marquee {
    from { transform: translateX(0); }
    to { transform: translateX(-50%); }
}

/* ══════════════════════════════════════════════════
   PROJECTS
══════════════════════════════════════════════════ */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.project-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: border-color 0.2s, transform 0.2s;
    display: flex;
    flex-direction: column;
}
.project-card:hover { border-color: var(--border-2); transform: translateY(-4px); }

.project-img-wrap {
    position: relative;
    aspect-ratio: 16/9;
    overflow: hidden;
}
.project-img-placeholder {
    width: 100%; height: 100%;
    background: var(--bg-3);
    display: flex;
    align-items: center;
    justify-content: center;
}
.project-img-label {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--text-3);
    letter-spacing: 0.08em;
    text-transform: uppercase;
}
.project-img-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.5);
    opacity: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.2s;
}
.project-card:hover .project-img-overlay { opacity: 1; }
.project-live-btn {
    background: var(--accent);
    color: #0a0a0a;
    font-weight: 700;
    font-size: 0.8rem;
    padding: 8px 18px;
    border-radius: var(--radius);
    font-family: var(--font-display);
}

.project-body { padding: 24px; flex: 1; display: flex; flex-direction: column; gap: 10px; }
.project-meta { display: flex; justify-content: space-between; align-items: center; }
.project-domain { font-family: var(--font-mono); font-size: 0.7rem; color: var(--accent); text-transform: uppercase; letter-spacing: 0.06em; }
.project-year { font-family: var(--font-mono); font-size: 0.7rem; color: var(--text-3); }
.project-title { font-family: var(--font-display); font-size: 1.05rem; font-weight: 700; color: var(--text); line-height: 1.3; }
.project-desc { font-size: 0.875rem; color: var(--text-2); line-height: 1.6; flex: 1; }
.project-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.project-read { font-family: var(--font-mono); font-size: 0.75rem; color: var(--accent); margin-top: 4px; transition: letter-spacing 0.2s; }
.project-read:hover { letter-spacing: 0.05em; }

/* ══════════════════════════════════════════════════
   SKILLS
══════════════════════════════════════════════════ */
.skills { background: var(--bg-2); }
.skills-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; }

.skill-group {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 28px;
}
.skill-group-icon {
    font-family: var(--font-mono);
    font-size: 1.2rem;
    color: var(--accent);
    margin-bottom: 16px;
    opacity: 0.7;
}
.skill-group h3 {
    font-family: var(--font-display);
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--text);
}
.skill-group ul { list-style: none; display: flex; flex-direction: column; gap: 12px; }
.skill-group ul li {
    display: flex;
    flex-direction: column;
    gap: 5px;
    font-size: 0.82rem;
    color: var(--text-2);
}
.skill-group ul li:not(:has(.skill-bar)) {
    padding: 6px 0;
    border-bottom: 1px solid var(--border);
    font-family: var(--font-mono);
    font-size: 0.75rem;
}
.skill-bar {
    height: 2px;
    background: var(--border);
    border-radius: 1px;
    overflow: hidden;
}
.skill-fill {
    height: 100%;
    width: 0;
    background: linear-gradient(90deg, var(--accent), var(--accent-2));
    border-radius: 1px;
    transition: width 1.2s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ══════════════════════════════════════════════════
   TIMELINE
══════════════════════════════════════════════════ */
.timeline {
    position: relative;
    padding-left: 32px;
    border-left: 1px solid var(--border);
}
.timeline-item {
    position: relative;
    padding-bottom: 56px;
}
.timeline-item:last-child { padding-bottom: 0; }
.timeline-marker {
    position: absolute;
    left: -40px;
    top: 6px;
    width: 10px; height: 10px;
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 0 3px var(--bg), 0 0 0 5px var(--border);
}
.timeline-date {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--accent);
    letter-spacing: 0.06em;
    margin-bottom: 10px;
}
.timeline-content h3 {
    font-family: var(--font-display);
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 4px;
}
.timeline-company {
    font-size: 0.875rem;
    color: var(--text-2);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 10px;
}
.timeline-remote {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    background: rgba(232,255,71,0.1);
    color: var(--accent);
    padding: 2px 8px;
    border-radius: 100px;
    border: 1px solid rgba(232,255,71,0.2);
}
.timeline-content p { font-size: 0.9rem; color: var(--text-2); line-height: 1.7; margin-bottom: 14px; }
.timeline-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.timeline-tags span { @extend .tag; }

/* ══════════════════════════════════════════════════
   BLOG PREVIEW
══════════════════════════════════════════════════ */
.blog-preview { background: var(--bg-2); }
.blog-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }

.blog-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 28px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    transition: border-color 0.2s, transform 0.2s;
}
.blog-card:hover { border-color: var(--border-2); transform: translateY(-3px); }

.blog-card-meta { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.blog-tag {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--accent);
    background: rgba(232,255,71,0.08);
    padding: 3px 8px;
    border-radius: 2px;
}
.blog-date { font-family: var(--font-mono); font-size: 0.7rem; color: var(--text-3); }
.blog-read-time { font-family: var(--font-mono); font-size: 0.7rem; color: var(--text-3); }

.blog-card-title { font-family: var(--font-display); font-size: 1rem; font-weight: 700; line-height: 1.35; }
.blog-card-title a { color: var(--text); transition: color 0.2s; }
.blog-card-title a:hover { color: var(--accent); }
.blog-card-excerpt, .blog-card p { font-size: 0.85rem; color: var(--text-2); line-height: 1.65; flex: 1; }
.blog-read { font-family: var(--font-mono); font-size: 0.75rem; color: var(--accent); margin-top: auto; transition: letter-spacing 0.2s; }
.blog-read:hover { letter-spacing: 0.04em; }

.blog-empty { opacity: 0.5; font-family: var(--font-mono); font-size: 0.85rem; color: var(--text-2); }

/* ══════════════════════════════════════════════════
   CONTACT
══════════════════════════════════════════════════ */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 80px;
    align-items: start;
}
.contact-sub { color: var(--text-2); margin: 20px 0 40px; line-height: 1.75; }
.contact-details { display: flex; flex-direction: column; gap: 12px; }
.contact-link {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--text-2);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: color 0.2s;
}
.contact-link:hover { color: var(--accent); }

.contact-form { display: flex; flex-direction: column; gap: 20px; }
.form-group { display: flex; flex-direction: column; gap: 8px; }
.form-group label {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-3);
}
.form-group input,
.form-group textarea {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 14px 16px;
    color: var(--text);
    font-family: var(--font-body);
    font-size: 0.9rem;
    transition: border-color 0.2s;
    outline: none;
    resize: vertical;
}
.form-group input:focus,
.form-group textarea:focus { border-color: var(--accent); }
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--text-3); }
.form-success { color: var(--accent-2); font-size: 0.875rem; font-family: var(--font-mono); padding: 12px; border: 1px solid rgba(79,255,176,0.2); border-radius: var(--radius); background: rgba(79,255,176,0.05); }
.form-error { color: #ff6b6b; font-size: 0.875rem; font-family: var(--font-mono); padding: 12px; border: 1px solid rgba(255,107,107,0.2); border-radius: var(--radius); }

/* ══════════════════════════════════════════════════
   FOOTER
══════════════════════════════════════════════════ */
footer {
    border-top: 1px solid var(--border);
    background: var(--bg-2);
    padding: 48px 0;
}
.footer-inner {
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 0 40px;
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    align-items: center;
    gap: 32px;
}
.footer-logo { font-family: var(--font-display); font-size: 1.4rem; font-weight: 800; display: block; margin-bottom: 8px; }
.footer-logo .dot { color: var(--accent); }
.footer-left p { font-size: 0.8rem; color: var(--text-3); line-height: 1.6; }
.footer-links { display: flex; flex-wrap: wrap; gap: 20px; justify-content: center; }
.footer-links a { font-family: var(--font-mono); font-size: 0.75rem; color: var(--text-3); transition: color 0.2s; }
.footer-links a:hover { color: var(--accent); }
.footer-copy { text-align: right; }
.footer-copy p { font-family: var(--font-mono); font-size: 0.7rem; color: var(--text-3); }

/* ══════════════════════════════════════════════════
   BLOG PAGES
══════════════════════════════════════════════════ */
.blog-hero { padding: 140px 0 60px; background: var(--bg); }
.page-title { font-family: var(--font-display); font-size: clamp(2.5rem, 6vw, 4.5rem); font-weight: 800; line-height: 1.05; letter-spacing: -0.02em; margin: 12px 0 16px; }
.page-sub { color: var(--text-2); font-size: 1.05rem; max-width: 500px; }

.blog-filters { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 48px; }
.filter-btn {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    padding: 8px 16px;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    color: var(--text-2);
    background: transparent;
    transition: all 0.2s;
    cursor: pointer;
}
.filter-btn:hover, .filter-btn.active { background: var(--accent); color: #0a0a0a; border-color: var(--accent); font-weight: 600; }

.blog-featured {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 48px;
    margin-bottom: 64px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}
.blog-featured-img { aspect-ratio: 4/3; }
.blog-img-placeholder { width: 100%; height: 100%; background: var(--bg-3); display: flex; align-items: center; justify-content: center; }
.blog-img-placeholder span { font-family: var(--font-mono); font-size: 0.72rem; color: var(--text-3); text-transform: uppercase; letter-spacing: 0.08em; }
.blog-featured-body { padding: 40px 40px 40px 0; display: flex; flex-direction: column; gap: 16px; justify-content: center; }
.blog-featured-body h2 { font-family: var(--font-display); font-size: 1.6rem; font-weight: 700; line-height: 1.25; }
.blog-featured-body h2 a { color: var(--text); transition: color 0.2s; }
.blog-featured-body h2 a:hover { color: var(--accent); }
.blog-featured-body p { color: var(--text-2); font-size: 0.95rem; line-height: 1.7; }

.blog-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }

.blog-card-img { aspect-ratio: 16/9; border-radius: var(--radius) var(--radius) 0 0; overflow: hidden; }
.blog-card { padding: 0; overflow: hidden; }
.blog-card-body { padding: 20px 24px 24px; }

.blog-empty-state { text-align: center; padding: 80px 0; }
.empty-icon { font-size: 3rem; margin-bottom: 20px; }
.blog-empty-state h3 { font-family: var(--font-display); font-size: 1.4rem; margin-bottom: 12px; }
.blog-empty-state p { color: var(--text-2); max-width: 460px; margin: 0 auto; }

.pagination-wrap { display: flex; justify-content: center; margin-top: 64px; }

/* ══════════════════════════════════════════════════
   SINGLE POST
══════════════════════════════════════════════════ */
.post-single {}
.post-hero { padding: 120px 0 48px; background: var(--bg-2); }
.post-back { font-family: var(--font-mono); font-size: 0.75rem; color: var(--text-3); display: inline-block; margin-bottom: 32px; transition: color 0.2s; }
.post-back:hover { color: var(--accent); }
.post-header { max-width: 720px; }
.post-title { font-family: var(--font-display); font-size: clamp(1.8rem, 4vw, 3rem); font-weight: 800; line-height: 1.1; letter-spacing: -0.02em; margin: 16px 0; }
.post-excerpt { font-size: 1.1rem; color: var(--text-2); line-height: 1.7; }
.post-cover { max-height: 480px; overflow: hidden; margin-top: 48px; }
.post-cover img { width: 100%; height: 100%; object-fit: cover; }

.post-layout {
    display: grid;
    grid-template-columns: 220px 1fr;
    gap: 64px;
    padding: 64px 0;
    align-items: start;
}

.post-toc {
    position: sticky;
    top: 88px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 20px;
}
.toc-title { font-family: var(--font-mono); font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-3); margin-bottom: 16px; }
#toc-list { display: flex; flex-direction: column; gap: 8px; }
#toc-list a { font-size: 0.8rem; color: var(--text-2); transition: color 0.2s; line-height: 1.4; display: block; }
#toc-list a:hover, #toc-list a.toc-active { color: var(--accent); }
#toc-list .toc-sub { padding-left: 12px; font-size: 0.75rem; }

/* Post content typography */
.post-content { max-width: 720px; }
.post-content h2 { font-family: var(--font-display); font-size: 1.6rem; font-weight: 700; color: var(--text); margin: 48px 0 16px; padding-top: 16px; border-top: 1px solid var(--border); }
.post-content h3 { font-family: var(--font-display); font-size: 1.2rem; font-weight: 700; color: var(--text); margin: 32px 0 12px; }
.post-content p { color: var(--text-2); margin-bottom: 20px; line-height: 1.8; font-size: 1rem; }
.post-content strong { color: var(--text); font-weight: 600; }
.post-content a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }
.post-content ul, .post-content ol { color: var(--text-2); margin: 16px 0 20px 24px; display: flex; flex-direction: column; gap: 8px; }
.post-content li { line-height: 1.7; font-size: 0.95rem; }
.post-content pre { background: var(--bg-3); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 24px; overflow-x: auto; margin: 28px 0; }
.post-content code { font-family: var(--font-mono); font-size: 0.85rem; color: var(--accent-2); }
.post-content pre code { color: var(--text-2); font-size: 0.82rem; line-height: 1.7; }
.post-content blockquote { border-left: 3px solid var(--accent); padding: 16px 24px; background: var(--surface); border-radius: 0 var(--radius) var(--radius) 0; margin: 24px 0; color: var(--text-2); font-style: italic; }
.post-content table { width: 100%; border-collapse: collapse; margin: 24px 0; font-size: 0.875rem; }
.post-content th { background: var(--surface); padding: 12px 16px; text-align: left; font-family: var(--font-mono); font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--text-3); border-bottom: 1px solid var(--border); }
.post-content td { padding: 12px 16px; color: var(--text-2); border-bottom: 1px solid var(--border); }

.post-tags { display: flex; flex-wrap: wrap; gap: 8px; padding: 32px 0; border-top: 1px solid var(--border); }

.post-author {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 28px;
    margin: 40px 0;
}
.author-photo-placeholder {
    width: 52px; height: 52px;
    border-radius: 50%;
    background: var(--accent);
    color: #0a0a0a;
    font-family: var(--font-display);
    font-weight: 800;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.author-name { font-family: var(--font-display); font-weight: 700; margin-bottom: 6px; }
.author-bio { font-size: 0.85rem; color: var(--text-2); margin-bottom: 12px; }
.author-links { display: flex; gap: 16px; }
.author-links a { font-family: var(--font-mono); font-size: 0.72rem; color: var(--accent); text-transform: uppercase; letter-spacing: 0.06em; }

.related-posts h3 { font-family: var(--font-display); font-size: 1.1rem; font-weight: 700; margin-bottom: 20px; }
.related-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.related-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 20px; display: flex; flex-direction: column; gap: 8px; transition: border-color 0.2s; }
.related-card:hover { border-color: var(--border-2); }
.related-card h4 { font-family: var(--font-display); font-size: 0.95rem; font-weight: 700; color: var(--text); line-height: 1.35; }

/* ══════════════════════════════════════════════════
   CASE STUDY
══════════════════════════════════════════════════ */
.case-hero { padding: 120px 0 56px; background: var(--bg-2); }
.case-header { max-width: 760px; }
.case-meta-row { display: flex; align-items: center; gap: 32px; flex-wrap: wrap; margin-top: 32px; }
.case-meta { display: flex; flex-direction: column; gap: 4px; }
.case-meta span { font-family: var(--font-mono); font-size: 0.65rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-3); }
.case-meta strong { font-size: 0.875rem; color: var(--text); }

.case-gallery { padding: 48px 0; overflow: hidden; }
.gallery-track { display: flex; gap: 16px; padding: 0 40px; overflow-x: auto; scroll-snap-type: x mandatory; -webkit-overflow-scrolling: touch; }
.gallery-track::-webkit-scrollbar { display: none; }
.gallery-item { min-width: 640px; max-width: 640px; aspect-ratio: 16/9; border-radius: var(--radius-lg); overflow: hidden; scroll-snap-align: start; background: var(--surface); border: 1px solid var(--border); }

.case-gallery-placeholder { padding: 48px 0; }
.gallery-placeholder-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 16px; }
.gallery-ph {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    aspect-ratio: 16/9;
}
.gallery-ph.main { aspect-ratio: 16/9; }
.gallery-ph span { font-family: var(--font-mono); font-size: 0.7rem; color: var(--text-3); text-transform: uppercase; letter-spacing: 0.08em; }

.case-body { padding: 64px 0 32px; max-width: 760px; }
.case-body h2 { font-family: var(--font-display); font-size: 1.5rem; font-weight: 700; margin: 40px 0 14px; color: var(--text); }
.case-body h3 { font-family: var(--font-display); font-size: 1.1rem; font-weight: 700; margin: 28px 0 10px; color: var(--text); }
.case-body p { color: var(--text-2); margin-bottom: 18px; line-height: 1.8; }
.case-body ul, .case-body ol { color: var(--text-2); margin: 12px 0 20px 22px; display: flex; flex-direction: column; gap: 8px; }
.case-body li { line-height: 1.7; }
.case-body strong { color: var(--text); }
.case-body code { font-family: var(--font-mono); font-size: 0.85rem; background: var(--bg-3); padding: 2px 6px; border-radius: 2px; color: var(--accent-2); }

.case-next { display: flex; flex-direction: column; gap: 8px; padding: 40px 0; border-top: 1px solid var(--border); margin-top: 40px; }
.case-next span { font-family: var(--font-mono); font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-3); }
.case-next a { font-family: var(--font-display); font-size: 1.4rem; font-weight: 700; color: var(--text); transition: color 0.2s; }
.case-next a:hover { color: var(--accent); }

/* ══════════════════════════════════════════════════
   RESPONSIVE
══════════════════════════════════════════════════ */
@media (max-width: 1024px) {
    .projects-grid { grid-template-columns: repeat(2, 1fr); }
    .skills-grid { grid-template-columns: repeat(2, 1fr); }
    .blog-list { grid-template-columns: repeat(2, 1fr); }
    .blog-grid { grid-template-columns: repeat(2, 1fr); }
    .about-grid { grid-template-columns: 1fr; gap: 48px; }
    .about-photo-wrap { max-width: 220px; }
    .timeline { padding-left: 24px; }
    .timeline-marker { left: -32px; }
    .footer-inner { grid-template-columns: 1fr 1fr; }
    .footer-copy { text-align: left; }
}

@media (max-width: 768px) {
    :root { --section-gap: 72px; }
    .projects-grid { grid-template-columns: 1fr; }
    .skills-grid { grid-template-columns: 1fr; }
    .blog-list, .blog-grid { grid-template-columns: 1fr; }
    .blog-featured { grid-template-columns: 1fr; }
    .blog-featured-body { padding: 24px; }
    .contact-grid { grid-template-columns: 1fr; gap: 48px; }
    .hero-stats { display: grid; grid-template-columns: 1fr 1fr; border-radius: var(--radius-lg); }
    .stat { border-right: none; border-bottom: 1px solid var(--border); }
    .stat:nth-child(even) { border-left: 1px solid var(--border); }
    .post-layout { grid-template-columns: 1fr; }
    .post-toc { display: none; }
    .footer-inner { grid-template-columns: 1fr; }
    .footer-links { justify-content: flex-start; }
    .section-header-row { flex-direction: column; align-items: flex-start; }
    .related-grid { grid-template-columns: 1fr; }
    .hero-inner { padding: 80px 20px; }
    .gallery-item { min-width: 90vw; }
}

/* ── PAGINATION ─────────────────────────────────── */
nav[aria-label="Pagination"] {
    display: flex;
    justify-content: center;
    gap: 8px;
    flex-wrap: wrap;
}
nav[aria-label="Pagination"] span,
nav[aria-label="Pagination"] a {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    padding: 8px 14px;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    color: var(--text-2);
    background: var(--surface);
    transition: all 0.2s;
}
nav[aria-label="Pagination"] a:hover {
    border-color: var(--accent);
    color: var(--accent);
}
nav[aria-label="Pagination"] span[aria-current="page"] span {
    background: var(--accent);
    color: #0a0a0a;
    border-color: var(--accent);
    font-weight: 700;
}