/* =============================================
   HARSH DESHPANDE · PORTFOLIO
   GitHub-dark base + #6F00FF violet accent
   Single stylesheet, theme via [data-theme]
   ============================================= */

:root {
    /* GitHub dark palette */
    --bg-main: #0d1117;
    --bg-card: #161b22;
    --bg-card-alt: #1c2128;
    --bg-nav: rgba(13, 17, 23, 0.82);
    --border: #30363d;
    --border-muted: #21262d;

    --text-primary: #f0f6fc;
    --text-body: #c9d1d9;
    --text-muted: #8b949e;

    /* violet accent */
    --accent: #6f00ff;
    --accent-hover: #8a3dff;
    --accent-ink: #c9a7ff;        /* readable accent for text on dark */
    --accent-soft: rgba(111, 0, 255, 0.12);
    --accent-glow: rgba(111, 0, 255, 0.38);

    /* github semantic colors */
    --green: #3fb950;
    --blue: #58a6ff;
    --yellow: #d29922;
    --red: #f85149;

    --radius: 16px;
    --radius-lg: 24px;
    --shadow: 0 8px 24px rgba(1, 4, 9, 0.55);
    --shadow-glow: 0 0 0 1px rgba(111, 0, 255, 0.4), 0 8px 32px var(--accent-glow);

    --font-body: 'Inter', -apple-system, 'Segoe UI', sans-serif;
    --font-display: 'Space Grotesk', 'Inter', sans-serif;
    --font-mono: 'JetBrains Mono', 'SFMono-Regular', Consolas, monospace;

    --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="light"] {
    --bg-main: #ffffff;
    --bg-card: #f6f8fa;
    --bg-card-alt: #eef1f4;
    --bg-nav: rgba(255, 255, 255, 0.82);
    --border: #d0d7de;
    --border-muted: #eaeef2;

    --text-primary: #1f2328;
    --text-body: #424a53;
    --text-muted: #656d76;

    --accent: #6f00ff;
    --accent-hover: #5b00d6;
    --accent-ink: #5a00cc;
    --accent-soft: rgba(111, 0, 255, 0.08);
    --accent-glow: rgba(111, 0, 255, 0.22);

    --green: #1a7f37;
    --blue: #0969da;
    --yellow: #9a6700;
    --red: #cf222e;

    --shadow: 0 4px 16px rgba(31, 35, 40, 0.08);
}

/* ============ reset & base ============ */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

html {
    scroll-behavior: smooth;
    scroll-padding-top: 90px;
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-main);
    color: var(--text-body);
    line-height: 1.65;
    font-size: 1rem;
    overflow-x: hidden;
    transition: background-color var(--transition), color var(--transition);
}

.container { max-width: 1080px; margin: 0 auto; padding: 0 1.5rem; }

a { color: var(--blue); text-decoration: none; }
strong { color: var(--text-primary); font-weight: 600; }

::selection { background: var(--accent); color: #fff; }

/* ============ nav ============ */
.navbar {
    position: sticky;
    top: 0;
    z-index: 50;
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 0.75rem 1.5rem;
    max-width: 1080px;
    margin: 0.75rem auto 0;
    background: var(--bg-nav);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.05rem;
    color: var(--text-primary);
}

.brand-mark {
    display: grid;
    place-items: center;
    width: 32px;
    height: 32px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--accent), var(--accent-hover));
    color: #fff;
    font-size: 1rem;
}

.brand .accent, .accent { color: var(--accent-ink); }

.nav-links {
    display: flex;
    gap: 0.4rem;
    list-style: none;
    margin-left: auto;
}

.nav-link {
    color: var(--text-muted);
    font-family: var(--font-mono);
    font-size: 0.85rem;
    padding: 0.4rem 0.7rem;
    border-radius: 8px;
    transition: color var(--transition), background-color var(--transition);
}

.nav-link:hover { color: var(--text-primary); background: var(--bg-card-alt); }
.nav-link.active { color: var(--accent-ink); background: var(--accent-soft); }

.nav-actions { display: flex; align-items: center; gap: 0.6rem; }

.theme-toggle {
    display: grid;
    place-items: center;
    width: 36px;
    height: 36px;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    transition: color var(--transition), border-color var(--transition);
}
.theme-toggle:hover { color: var(--accent-ink); border-color: var(--accent); }
.theme-toggle svg { width: 17px; height: 17px; }

/* moon in dark (indicates current mode) */
[data-theme="dark"] .icon-sun { display: none; }
[data-theme="light"] .icon-moon { display: none; }

/* ============ buttons ============ */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.65rem 1.25rem;
    border-radius: 12px;
    font-weight: 600;
    font-size: 0.92rem;
    border: 1px solid transparent;
    cursor: pointer;
    transition: transform var(--transition), background-color var(--transition),
                border-color var(--transition), box-shadow var(--transition);
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent), var(--accent-hover));
    color: #fff;
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

.btn-ghost {
    background: transparent;
    border-color: var(--border);
    color: var(--text-body);
}
.btn-ghost:hover {
    border-color: var(--accent);
    color: var(--accent-ink);
    transform: translateY(-2px);
}

.btn-sm { padding: 0.4rem 0.9rem; font-size: 0.85rem; }

/* ============ hero ============ */
.hero {
    position: relative;
    padding-top: 3.5rem;
}

.hero-glow {
    position: absolute;
    top: -120px;
    left: 50%;
    transform: translateX(-50%);
    width: 720px;
    height: 420px;
    background: radial-gradient(ellipse at center, var(--accent-glow) 0%, transparent 65%);
    pointer-events: none;
    z-index: -1;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.15fr 1fr;
    gap: 1.25rem;
    align-items: stretch;
}

.hero-intro { padding: 2.25rem; }

.mono-label {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--accent-ink);
}

.hero-name {
    font-family: var(--font-display);
    font-size: clamp(2.4rem, 6vw, 3.6rem);
    font-weight: 700;
    line-height: 1.1;
    color: var(--text-primary);
    margin: 0.9rem 0 0.6rem;
}

.gradient-text {
    background: linear-gradient(100deg, var(--accent-ink), var(--accent) 55%, var(--blue));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}

.hero-role {
    font-family: var(--font-display);
    font-size: 1.25rem;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.hero-tagline { color: var(--text-muted); margin-bottom: 1.25rem; max-width: 34rem; }

.hero-meta { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 1.5rem; }

.meta-chip {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-muted);
    background: var(--bg-card-alt);
    border: 1px solid var(--border-muted);
    border-radius: 999px;
    padding: 0.3rem 0.8rem;
}

.hero-actions { display: flex; flex-wrap: wrap; gap: 0.75rem; }

/* terminal card */
.terminal {
    padding: 0;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    background: #010409;
    border-color: var(--border-muted);
}

.term-bar {
    display: flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0.7rem 1rem;
    background: var(--bg-card-alt);
    border-bottom: 1px solid var(--border-muted);
}

.dot { width: 11px; height: 11px; border-radius: 50%; }
.dot-red { background: var(--red); }
.dot-yellow { background: var(--yellow); }
.dot-green { background: var(--green); }

.term-title {
    margin-left: 0.5rem;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
}

.term-body {
    flex: 1;
    padding: 1.25rem;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    line-height: 1.9;
    color: var(--text-body);
    white-space: pre-wrap;
    min-height: 240px;
}

.term-cmd { color: var(--text-primary); }
.term-out { color: var(--accent-ink); }

.cursor {
    display: inline-block;
    color: var(--accent-ink);
    animation: blink 1s step-end infinite;
}

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

/* stats */
.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
    margin-top: 1.25rem;
}

.stat-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.2rem;
    padding: 1.4rem;
    text-align: center;
}

.stat-number {
    font-family: var(--font-display);
    font-size: 2.4rem;
    font-weight: 700;
    color: var(--text-primary);
}

.stat-label {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

/* ============ cards ============ */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.card:hover { border-color: color-mix(in srgb, var(--accent) 45%, var(--border)); }

/* ============ marquee ============ */
.marquee {
    margin: 2.5rem 0 0;
    padding: 0.8rem 0;
    border-block: 1px solid var(--border-muted);
    overflow: hidden;
    -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
    mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}

.marquee-track {
    display: flex;
    width: max-content;
    animation: marquee 34s linear infinite;
}

.marquee-track span {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    letter-spacing: 0.18em;
    color: var(--text-muted);
    padding-right: 2.5rem;
    white-space: nowrap;
}

.marquee-track i { font-style: normal; color: var(--accent); }

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

/* ============ sections ============ */
.section { padding-top: 5rem; }

.section-title {
    font-family: var(--font-display);
    font-size: 1.9rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1.75rem;
}

.section-title .mono-label { margin-right: 0.5rem; }

.section-foot { margin-top: 1.5rem; text-align: center; }

/* ============ about ============ */
.bento-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
}

.card-title {
    font-family: var(--font-display);
    font-size: 1.15rem;
    color: var(--text-primary);
    margin-bottom: 0.9rem;
}

.card p + p { margin-top: 0.75rem; }

.check-list { list-style: none; }
.check-list li {
    position: relative;
    padding: 0.3rem 0 0.3rem 1.5rem;
    color: var(--text-muted);
}
.check-list li::before {
    content: "▸";
    position: absolute;
    left: 0;
    color: var(--accent-ink);
    font-family: var(--font-mono);
}

.cert-row { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 1rem; }

.pill {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.76rem;
    color: var(--text-body);
    background: var(--bg-card-alt);
    border: 1px solid var(--border-muted);
    border-radius: 999px;
    padding: 0.22rem 0.7rem;
    transition: border-color var(--transition), color var(--transition);
}

.pill:hover { border-color: var(--accent); color: var(--accent-ink); }

.quote-card {
    grid-column: 1 / -1;
    background:
        linear-gradient(135deg, var(--accent-soft), transparent 55%),
        var(--bg-card);
}

blockquote {
    font-family: var(--font-display);
    font-size: 1.15rem;
    color: var(--text-primary);
    text-align: center;
    padding: 0.5rem 1rem;
}

/* ============ timeline ============ */
.timeline {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.timeline::before {
    content: "";
    position: absolute;
    top: 8px;
    bottom: 8px;
    left: 13px;
    width: 2px;
    background: linear-gradient(var(--accent), var(--border-muted));
}

.timeline-item {
    position: relative;
    padding-left: 3rem;
}

.timeline-marker {
    position: absolute;
    top: 26px;
    left: 4px;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--bg-main);
    border: 2px solid var(--accent);
    box-shadow: 0 0 12px var(--accent-glow);
}

.timeline-card { padding: 1.5rem 1.75rem; }

.timeline-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 0.6rem;
}

.timeline-header h3 {
    font-family: var(--font-display);
    font-size: 1.15rem;
    color: var(--text-primary);
}

.company { color: var(--text-muted); font-size: 0.92rem; }

.year-badge {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--accent-ink);
    background: var(--accent-soft);
    border: 1px solid color-mix(in srgb, var(--accent) 40%, transparent);
    border-radius: 999px;
    padding: 0.25rem 0.8rem;
    white-space: nowrap;
}

.bullet-list { list-style: none; }
.bullet-list li {
    position: relative;
    padding: 0.28rem 0 0.28rem 1.3rem;
}
.bullet-list li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.85em;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent);
}

.tech-stack { display: flex; flex-wrap: wrap; gap: 0.45rem; margin-top: 1rem; }

/* ============ skills ============ */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.25rem;
}

.skill-card h4 {
    font-family: var(--font-display);
    font-size: 1.02rem;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
}

.skill-icon { font-size: 1.4rem; margin-bottom: 0.4rem; }

.skill-wide { grid-column: 1 / -1; }

/* ============ projects ============ */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.25rem;
}

.project-card { display: flex; flex-direction: column; gap: 0.6rem; }

.project-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow);
}

.project-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 0.75rem;
}

.project-tag {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--accent-ink);
    background: var(--accent-soft);
    border-radius: 8px;
    padding: 0.2rem 0.6rem;
}

.project-links { display: flex; gap: 0.75rem; }
.project-links a {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-muted);
    transition: color var(--transition);
}
.project-links a:hover { color: var(--accent-ink); }

.project-card h3 {
    font-family: var(--font-display);
    font-size: 1.2rem;
    color: var(--text-primary);
}

.project-card p { color: var(--text-muted); font-size: 0.92rem; }

.project-more {
    align-items: center;
    justify-content: center;
    flex-direction: row;
    color: var(--text-muted);
    font-family: var(--font-mono);
    font-size: 0.9rem;
    border-style: dashed;
}

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

.project-more-arrow { font-size: 1.2rem; transition: transform var(--transition); }
.project-more:hover .project-more-arrow { transform: translateX(4px); }

/* ============ contact ============ */
.contact-card {
    text-align: center;
    padding: 3.5rem 2rem;
    background:
        radial-gradient(ellipse at 50% 0%, var(--accent-soft), transparent 60%),
        var(--bg-card);
}

.contact-heading {
    font-family: var(--font-display);
    font-size: clamp(1.8rem, 4.5vw, 2.6rem);
    font-weight: 700;
    color: var(--text-primary);
    margin: 0.9rem 0 0.75rem;
}

.contact-sub {
    color: var(--text-muted);
    max-width: 34rem;
    margin: 0 auto 1.75rem;
}

.contact-actions { justify-content: center; }

/* ============ footer ============ */
.footer {
    border-top: 1px solid var(--border-muted);
    margin-top: 5rem;
    padding: 2.5rem 1.5rem;
    text-align: center;
}

.footer-quote {
    font-family: var(--font-display);
    font-size: 1.05rem;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.footer-meta {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--text-muted);
}

/* ============ reveal on scroll ============ */
.reveal {
    opacity: 0;
    transform: translateY(22px);
    transition: opacity 0.6s ease, transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    transition-delay: var(--d, 0s);
}

.reveal.visible { opacity: 1; transform: none; }

/* ============ responsive ============ */
@media (max-width: 860px) {
    .hero-grid { grid-template-columns: 1fr; }
    .bento-2 { grid-template-columns: 1fr; }
    .hero-stats { grid-template-columns: 1fr; }
    .nav-links { display: none; }
    .navbar { justify-content: space-between; }
}

@media (max-width: 480px) {
    .nav-cta { display: none; }
    .hero-intro { padding: 1.5rem; }
    .timeline-card { padding: 1.25rem; }
}

/* ============ reduced motion ============ */
@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    .marquee-track { animation: none; }
    .cursor { animation: none; }
    .reveal { opacity: 1; transform: none; transition: none; }
    .btn, .card, .project-card { transition: none; }
    .btn:hover, .project-card:hover { transform: none; }
}