/* ============================================================
   CONOR GRIFFIN — PORTFOLIO
   Aesthetic: Dark editorial with warm amber accent
   Fonts: System font stacks (no external requests)
   ============================================================ */

:root {
    --bg:        #0e0e0f;
    --surface:   #161618;
    --surface2:  #1e1e21;
    --border:    #2a2a2e;
    --text:      #e8e8e4;
    --text-muted:#8a8a82;
    --accent:    #e8a430;
    --accent2:   #c8742a;
    --code-bg:   #13131a;
    --kw:        #c792ea;
    --cls:       #82aaff;
    --fn:        #82cfff;
    --str:       #c3e88d;
    --radius:    10px;
    --radius-lg: 18px;
    --nav-h:     64px;
    --transition: 0.25s cubic-bezier(0.4,0,0.2,1);
}

.light {
    --bg:        #f7f5f0;
    --surface:   #ffffff;
    --surface2:  #f0ede6;
    --border:    #ddd9d0;
    --text:      #1a1a18;
    --text-muted:#6b6b60;
    --accent:    #c8742a;
    --accent2:   #a05520;
    --code-bg:   #1a1a2e;
}

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

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
    transition: background var(--transition), color var(--transition);
    overflow-x: hidden;
}

.mono { font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', Consolas, monospace; }

a { color: inherit; text-decoration: none; }

ul { list-style: none; }

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 32px;
}

/* ── NAV ─────────────────────────────────────────────────── */
#navbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    height: var(--nav-h);
    background: rgba(14,14,15,0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    transition: background var(--transition);
}

.light #navbar {
    background: rgba(247,245,240,0.9);
}

.nav-inner {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 32px;
    height: 100%;
    display: flex;
    align-items: center;
    gap: 40px;
}

.nav-logo {
    font-family: 'Palatino Linotype', Palatino, 'Book Antiqua', Georgia, serif;
    font-size: 1.4rem;
    color: var(--text);
    margin-right: auto;
    letter-spacing: -0.02em;
}

.nav-logo .dot { color: var(--accent); }

.nav-links {
    display: flex;
    gap: 32px;
}

.nav-links a {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-muted);
    letter-spacing: 0.02em;
    transition: color var(--transition);
}

.nav-links a:hover { color: var(--text); }

#theme-toggle {
    background: none;
    border: 1px solid var(--border);
    color: var(--text-muted);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition);
}

#theme-toggle:hover {
    border-color: var(--accent);
    color: var(--accent);
}

/* ── HERO ─────────────────────────────────────────────────── */
#hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: var(--nav-h);
    position: relative;
    overflow: hidden;
}

.hero-inner {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 32px;
    position: relative;
    z-index: 2;
    padding-top: 80px;
    padding-bottom: 80px;
}

.hero-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--surface2);
    border: 1px solid var(--border);
    border-radius: 99px;
    padding: 6px 16px;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 36px;
    letter-spacing: 0.04em;
    animation: fadeUp 0.6s ease both;
}

.hero-tag .mono { color: var(--accent); font-size: 0.75rem; }

.hero-name {
    font-family: 'Palatino Linotype', Palatino, 'Book Antiqua', Georgia, serif;
    font-size: clamp(4rem, 10vw, 8.5rem);
    line-height: 0.9;
    letter-spacing: -0.03em;
    color: var(--text);
    margin-bottom: 32px;
    animation: fadeUp 0.6s 0.1s ease both;
}

.hero-name em {
    font-style: italic;
    color: var(--accent);
}

.hero-sub {
    font-size: clamp(1rem, 2vw, 1.2rem);
    color: var(--text-muted);
    max-width: 520px;
    line-height: 1.7;
    margin-bottom: 48px;
    animation: fadeUp 0.6s 0.2s ease both;
}

.hero-cta {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    animation: fadeUp 0.6s 0.3s ease both;
}

.btn-primary {
    background: var(--accent);
    color: #0e0e0f;
    padding: 14px 32px;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 0.95rem;
    transition: all var(--transition);
    border: 2px solid var(--accent);
}

.btn-primary:hover {
    background: var(--accent2);
    border-color: var(--accent2);
    transform: translateY(-2px);
}

.btn-ghost {
    padding: 14px 32px;
    border-radius: var(--radius);
    font-weight: 500;
    font-size: 0.95rem;
    border: 2px solid var(--border);
    color: var(--text-muted);
    transition: all var(--transition);
}

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

/* Hero decoration */
.hero-deco {
    position: absolute;
    top: 0; right: 0;
    width: 55%;
    height: 100%;
    pointer-events: none;
}

.deco-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: linear-gradient(to left, rgba(0,0,0,0.6), transparent);
}

.deco-circle {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
}

.c1 {
    width: 500px; height: 500px;
    background: radial-gradient(circle, rgba(232,164,48,0.12), transparent 70%);
    top: 10%; right: 5%;
}

.c2 {
    width: 300px; height: 300px;
    background: radial-gradient(circle, rgba(200,116,42,0.08), transparent 70%);
    bottom: 20%; right: 30%;
}

/* ── SECTIONS ─────────────────────────────────────────────── */
section {
    padding: 100px 0;
    border-top: 1px solid var(--border);
}

.section-label {
    font-size: 0.75rem;
    color: var(--accent);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    margin-bottom: 16px;
}

.section-title {
    font-family: 'Palatino Linotype', Palatino, 'Book Antiqua', Georgia, serif;
    font-size: clamp(2rem, 4vw, 2.8rem);
    letter-spacing: -0.02em;
    color: var(--text);
    margin-bottom: 56px;
}

/* ── ABOUT ────────────────────────────────────────────────── */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 340px;
    gap: 80px;
    align-items: start;
}

.about-text h2 {
    font-family: 'Palatino Linotype', Palatino, 'Book Antiqua', Georgia, serif;
    font-size: clamp(1.6rem, 3vw, 2.2rem);
    letter-spacing: -0.02em;
    margin-bottom: 24px;
    line-height: 1.2;
}

.about-text p {
    color: var(--text-muted);
    font-size: 1.05rem;
    margin-bottom: 16px;
    max-width: 580px;
}

.about-stats {
    display: flex;
    flex-direction: column;
    gap: 32px;
    padding: 32px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
}

.stat {}

.stat-num {
    display: block;
    font-family: 'Palatino Linotype', Palatino, 'Book Antiqua', Georgia, serif;
    font-size: 3rem;
    color: var(--accent);
    line-height: 1;
    margin-bottom: 6px;
}

.stat-unit {
    font-size: 1.5rem;
    color: var(--text-muted);
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    letter-spacing: 0.02em;
}

/* ── PROJECTS ─────────────────────────────────────────────── */
.project-featured {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 48px;
    margin-bottom: 32px;
    cursor: pointer;
    transition: border-color var(--transition), transform var(--transition);
    position: relative;
    overflow: hidden;
}

.project-featured::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--accent), var(--accent2));
}

.project-featured:hover {
    border-color: var(--accent);
    transform: translateY(-3px);
}

.project-tag {
    font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', Consolas, monospace;
    font-size: 0.7rem;
    color: var(--accent);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 12px;
}

.project-featured-content h3 {
    font-family: 'Palatino Linotype', Palatino, 'Book Antiqua', Georgia, serif;
    font-size: 2rem;
    letter-spacing: -0.02em;
    margin-bottom: 16px;
}

.project-featured-content p {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.7;
    margin-bottom: 24px;
}

.tech-stack {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 28px;
}

.tech-stack span {
    font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', Consolas, monospace;
    font-size: 0.72rem;
    padding: 4px 10px;
    background: var(--surface2);
    border: 1px solid var(--border);
    border-radius: 4px;
    color: var(--text-muted);
}

.btn-outline {
    background: none;
    border: 1px solid var(--border);
    color: var(--text);
    padding: 10px 20px;
    border-radius: var(--radius);
    font-size: 0.875rem;
    cursor: pointer;
    transition: all var(--transition);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
}

.btn-outline:hover {
    border-color: var(--accent);
    color: var(--accent);
}

/* Code window */
.code-window {
    background: var(--code-bg);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    overflow: hidden;
    font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', Consolas, monospace;
    font-size: 0.82rem;
}

.code-titlebar {
    background: var(--surface2);
    padding: 10px 16px;
    display: flex;
    gap: 6px;
    border-bottom: 1px solid var(--border);
}

.code-titlebar span {
    width: 10px; height: 10px;
    border-radius: 50%;
    background: var(--border);
}

.code-titlebar span:nth-child(1) { background: #ff5f57; }
.code-titlebar span:nth-child(2) { background: #febc2e; }
.code-titlebar span:nth-child(3) { background: #28c840; }

.code-body {
    padding: 20px 24px;
    line-height: 1.9;
    color: #a0a0b0;
}

.code-line { white-space: nowrap; }
.indent { padding-left: 20px; }
.indent2 { padding-left: 40px; }

.kw { color: var(--kw); }
.cls { color: var(--cls); }
.fn { color: var(--fn); }
.str { color: var(--str); }

.code-cursor {
    display: inline-block;
    color: var(--accent);
    animation: blink 1.1s step-end infinite;
    padding-left: 4px;
}

/* Project grid */
.project-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);
    padding: 32px;
    cursor: pointer;
    transition: all var(--transition);
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.project-card:hover {
    border-color: var(--accent);
    transform: translateY(-4px);
}

.project-card-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 4px;
}

.project-status {
    font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', Consolas, monospace;
    font-size: 0.65rem;
    padding: 3px 8px;
    border-radius: 99px;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.project-status.active   { background: rgba(130,207,255,0.1); color: #82cfff; border: 1px solid rgba(130,207,255,0.2); }
.project-status.research { background: rgba(232,164,48,0.1);  color: var(--accent); border: 1px solid rgba(232,164,48,0.2); }
.project-status.live     { background: rgba(40,200,64,0.1);   color: #28c840; border: 1px solid rgba(40,200,64,0.2); }

.project-card h3 {
    font-family: 'Palatino Linotype', Palatino, 'Book Antiqua', Georgia, serif;
    font-size: 1.3rem;
    letter-spacing: -0.01em;
}

.project-card p {
    font-size: 0.875rem;
    color: var(--text-muted);
    line-height: 1.65;
    flex: 1;
}

/* ── EXPERIENCE ───────────────────────────────────────────── */
.timeline {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.timeline-item {
    display: grid;
    grid-template-columns: 220px 1fr;
    gap: 40px;
    padding: 32px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    transition: border-color var(--transition);
}

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

.timeline-meta {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding-top: 4px;
}

.timeline-date {
    font-size: 0.78rem;
    color: var(--text-muted);
    letter-spacing: 0.02em;
}

.timeline-badge {
    display: inline-block;
    background: rgba(232,164,48,0.1);
    color: var(--accent);
    font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', Consolas, monospace;
    font-size: 0.7rem;
    padding: 3px 10px;
    border-radius: 99px;
    border: 1px solid rgba(232,164,48,0.25);
    width: fit-content;
}

.timeline-content h3 {
    font-family: 'Palatino Linotype', Palatino, 'Book Antiqua', Georgia, serif;
    font-size: 1.4rem;
    margin-bottom: 4px;
    letter-spacing: -0.01em;
}

.timeline-content .at { color: var(--accent); }

.timeline-sub {
    font-size: 0.82rem;
    color: var(--text-muted);
    font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', Consolas, monospace;
    margin-bottom: 16px;
}

.timeline-content ul {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.timeline-content li {
    font-size: 0.92rem;
    color: var(--text-muted);
    padding-left: 16px;
    position: relative;
    line-height: 1.6;
}

.timeline-content li::before {
    content: '—';
    position: absolute;
    left: 0;
    color: var(--accent);
    font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', Consolas, monospace;
}

/* ── SKILLS ───────────────────────────────────────────────── */
.skills-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
}

.skill-group {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 28px;
}

.skill-group h4 {
    font-size: 0.8rem;
    font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', Consolas, monospace;
    color: var(--accent);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 16px;
}

.skill-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.skill-chips span {
    font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', Consolas, monospace;
    font-size: 0.78rem;
    padding: 6px 14px;
    background: var(--surface2);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text-muted);
    transition: all var(--transition);
}

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

.skill-chips.small span { font-size: 0.72rem; padding: 4px 10px; }

/* ── EDUCATION ────────────────────────────────────────────── */
.edu-card {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 48px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 40px;
    align-items: start;
}

.edu-left h3 {
    font-family: 'Palatino Linotype', Palatino, 'Book Antiqua', Georgia, serif;
    font-size: 1.5rem;
    margin-bottom: 8px;
}

.edu-school {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 8px;
}

.edu-date {
    font-size: 0.78rem;
    color: var(--accent);
}

.edu-right h4 {
    font-size: 0.78rem;
    font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', Consolas, monospace;
    color: var(--text-muted);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 16px;
}

/* ── FOOTER / CONTACT ─────────────────────────────────────── */
#contact {
    padding: 80px 0 40px;
    border-top: 1px solid var(--border);
}

.contact-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    margin-bottom: 64px;
}

.contact-left h2 {
    font-family: 'Palatino Linotype', Palatino, 'Book Antiqua', Georgia, serif;
    font-size: clamp(2.5rem, 5vw, 4rem);
    letter-spacing: -0.03em;
    margin-bottom: 16px;
    line-height: 1;
}

.contact-left p {
    color: var(--text-muted);
    font-size: 1rem;
    max-width: 340px;
}

.contact-links {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 20px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 20px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 0.9rem;
    transition: all var(--transition);
}

.contact-item:hover {
    border-color: var(--accent);
    color: var(--accent);
    transform: translateX(4px);
}

.contact-item .mono {
    font-size: 0.7rem;
    color: var(--accent);
    width: 24px;
}

.footer-bottom {
    border-top: 1px solid var(--border);
    padding-top: 24px;
    font-size: 0.78rem;
    color: var(--text-muted);
    text-align: center;
}

/* ── MODAL ────────────────────────────────────────────────── */
.modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.7);
    z-index: 500;
    backdrop-filter: blur(4px);
    align-items: center;
    justify-content: center;
    padding: 24px;
}

.modal-overlay.open {
    display: flex;
}

.modal-box {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    max-width: 640px;
    width: 100%;
    padding: 48px;
    position: relative;
    max-height: 85vh;
    overflow-y: auto;
    animation: scaleIn 0.2s ease;
}

.modal-close {
    position: absolute;
    top: 16px; right: 16px;
    background: none;
    border: 1px solid var(--border);
    color: var(--text-muted);
    width: 32px; height: 32px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition);
}

.modal-close:hover { border-color: var(--accent); color: var(--accent); }

#modal-body .modal-tag {
    font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', Consolas, monospace;
    font-size: 0.7rem;
    color: var(--accent);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 12px;
}

#modal-body h3 {
    font-family: 'Palatino Linotype', Palatino, 'Book Antiqua', Georgia, serif;
    font-size: 1.9rem;
    letter-spacing: -0.02em;
    margin-bottom: 20px;
}

#modal-body p {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.75;
    margin-bottom: 16px;
}

#modal-body ul {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 24px;
}

#modal-body li {
    font-size: 0.9rem;
    color: var(--text-muted);
    padding-left: 20px;
    position: relative;
    line-height: 1.6;
}

#modal-body li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--accent);
    font-size: 0.8rem;
}

#modal-body .modal-stack-label {
    font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', Consolas, monospace;
    font-size: 0.72rem;
    color: var(--text-muted);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 10px;
}

/* ── SCROLL TO TOP ────────────────────────────────────────── */
#scroll-top {
    position: fixed;
    bottom: 28px;
    right: 28px;
    width: 42px;
    height: 42px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 50%;
    color: var(--text-muted);
    font-size: 1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: all var(--transition);
    z-index: 90;
}

#scroll-top.visible {
    opacity: 1;
    pointer-events: all;
}

#scroll-top:hover {
    border-color: var(--accent);
    color: var(--accent);
}

/* ── ANIMATIONS ───────────────────────────────────────────── */
@keyframes fadeUp {
    from { opacity: 0; transform: translateY(24px); }
    to   { opacity: 1; transform: translateY(0); }
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50%       { opacity: 0; }
}

@keyframes scaleIn {
    from { opacity: 0; transform: scale(0.96); }
    to   { opacity: 1; transform: scale(1); }
}

/* Scroll reveal */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ── RESPONSIVE ───────────────────────────────────────────── */
@media (max-width: 900px) {
    .about-grid { grid-template-columns: 1fr; gap: 40px; }
    .about-stats { flex-direction: row; justify-content: space-around; }
    .project-featured { grid-template-columns: 1fr; }
    .project-featured-visual { display: none; }
    .project-grid { grid-template-columns: 1fr; }
    .skills-layout { grid-template-columns: 1fr; }
    .edu-card { grid-template-columns: 1fr; gap: 32px; }
    .contact-inner { grid-template-columns: 1fr; gap: 40px; }
    .timeline-item { grid-template-columns: 1fr; gap: 16px; }
}

@media (max-width: 640px) {
    .nav-links { display: none; }
    .container { padding: 0 20px; }
    .hero-inner { padding: 60px 20px; }
    .modal-box { padding: 32px 24px; }
    .project-featured { padding: 28px; }
}