/* ================================================================
   Marcin Firmuga — Portfolio
   style.css
   ================================================================ */

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

:root {
    --bg:        #080808;
    --bg-2:      #0e0e0e;
    --bg-3:      #141414;
    --border:    rgba(255,255,255,.07);
    --border-h:  rgba(255,255,255,.16);
    --text:      #e2e2e2;
    --muted:     #5a5a5a;
    --muted-2:   #3a3a3a;
    --green:     #22c55e;
    --green-dim: rgba(34,197,94,.1);
    --green-bd:  rgba(34,197,94,.2);
    --red:       #ef4444;
    --mono:      'JetBrains Mono', 'Courier New', monospace;
    --sans:      'Inter', system-ui, sans-serif;
    --heading:   'Space Grotesk', system-ui, sans-serif;
    --radius:    10px;
    --transition: .2s ease;
}

html { font-size: 15px; scroll-behavior: smooth; }

body {
    font-family: var(--sans);
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

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

/* ── Layout ────────────────────────────────────────────────── */
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 28px; }

/* ── Reveal on scroll ─────────────────────────────────────── */
.reveal {
    opacity: 0;
    transform: translateY(18px);
    transition: opacity .55s ease, transform .55s ease;
}
.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ── Nav ──────────────────────────────────────────────────── */
nav {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(8,8,8,.9);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border);
}
.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 54px;
}
.nav-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: var(--heading);
    font-weight: 600;
    font-size: 14px;
    letter-spacing: -.01em;
    cursor: default;
}
.dot-live {
    width: 7px; height: 7px;
    background: var(--green);
    border-radius: 50%;
    animation: pulse-dot 2.4s ease-in-out infinite;
}
@keyframes pulse-dot {
    0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(34,197,94,.4); }
    50%       { opacity: .4; box-shadow: 0 0 0 5px rgba(34,197,94,0); }
}
.nav-links {
    display: flex;
    align-items: center;
    gap: 26px;
    list-style: none;
    font-size: 13px;
    color: var(--muted);
}
.nav-links a { transition: color var(--transition); }
.nav-links a:hover { color: var(--text); }
.nav-gh {
    font-size: 11px;
    font-family: var(--mono);
    color: var(--muted);
    border: 1px solid var(--border);
    padding: 5px 12px;
    border-radius: 6px;
    transition: border-color var(--transition), color var(--transition);
}
.nav-gh:hover { border-color: var(--border-h); color: var(--text); }

/* ── Hero ─────────────────────────────────────────────────── */
.hero {
    padding: 96px 0 80px;
    border-bottom: 1px solid var(--border);
    position: relative;
}
.hero::before {
    content: '';
    position: absolute;
    top: 0; left: 50%; right: 0; bottom: 0;
    background: radial-gradient(ellipse at 80% 40%, rgba(34,197,94,.04) 0%, transparent 65%);
    pointer-events: none;
}
.hero-eyebrow {
    font-family: var(--mono);
    font-size: 11px;
    letter-spacing: .14em;
    text-transform: uppercase;
    color: var(--green);
    margin-bottom: 24px;
    opacity: 0;
    animation: fade-up .6s ease .1s forwards;
}
.hero-name {
    font-family: var(--heading);
    font-size: clamp(52px, 9vw, 92px);
    font-weight: 700;
    letter-spacing: -.04em;
    line-height: .93;
    margin-bottom: 28px;
    opacity: 0;
    animation: fade-up .65s ease .2s forwards;
}
.hero-name .green { color: var(--green); }
.hero-sub {
    font-size: 17px;
    color: rgba(226,226,226,.58);
    line-height: 1.6;
    max-width: 520px;
    margin-bottom: 36px;
    opacity: 0;
    animation: fade-up .65s ease .35s forwards;
}
.hero-sub strong { color: rgba(226,226,226,.85); font-weight: 500; }
.hero-cta {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
    opacity: 0;
    animation: fade-up .65s ease .45s forwards;
}
@keyframes fade-up {
    from { opacity: 0; transform: translateY(14px); }
    to   { opacity: 1; transform: translateY(0); }
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--green);
    color: #000;
    font-weight: 600;
    font-size: 13px;
    padding: 10px 20px;
    border-radius: 8px;
    transition: background var(--transition), transform .15s;
}
.btn-primary:hover { background: #16a34a; transform: translateY(-1px); }
.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    border: 1px solid var(--border);
    color: var(--muted);
    font-size: 13px;
    padding: 10px 18px;
    border-radius: 8px;
    transition: border-color var(--transition), color var(--transition);
}
.btn-secondary:hover { border-color: var(--border-h); color: var(--text); }

/* ── Stats bar ────────────────────────────────────────────── */
.stats-bar {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    border-bottom: 1px solid var(--border);
}
.stat {
    padding: 26px 22px;
    border-right: 1px solid var(--border);
    transition: background var(--transition);
}
.stat:last-child { border-right: none; }
.stat:hover { background: var(--bg-2); }
.stat-num {
    font-family: var(--heading);
    font-size: 34px;
    font-weight: 700;
    letter-spacing: -.035em;
    color: var(--text);
    line-height: 1;
    margin-bottom: 6px;
}
.stat-num .accent { color: var(--green); }
.stat-num .hot    { color: #f87171; }
.stat-label {
    font-size: 11px;
    font-family: var(--mono);
    color: var(--muted);
    letter-spacing: .02em;
    line-height: 1.4;
}

/* ── Sections ─────────────────────────────────────────────── */
section { border-bottom: 1px solid var(--border); }
.section { padding: 72px 0; }
.section-label {
    font-family: var(--mono);
    font-size: 10px;
    letter-spacing: .18em;
    text-transform: uppercase;
    color: var(--muted-2);
    margin-bottom: 40px;
}

/* ── About ────────────────────────────────────────────────── */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1.65fr;
    gap: 64px;
    align-items: start;
}
.about-title {
    font-family: var(--heading);
    font-size: 38px;
    font-weight: 700;
    letter-spacing: -.03em;
    line-height: 1.08;
}
.about-title em { font-style: normal; color: var(--green); }

.timeline { display: flex; flex-direction: column; margin-top: 28px; }
.tl-item {
    display: grid;
    grid-template-columns: 78px 1fr;
    gap: 14px;
    padding: 14px 0;
    border-top: 1px solid var(--border);
    transition: padding-left var(--transition);
}
.tl-item:first-child { border-top: none; padding-top: 0; }
.tl-item:hover { padding-left: 4px; }
.tl-date {
    font-family: var(--mono);
    font-size: 11px;
    color: var(--muted);
    padding-top: 2px;
}
.tl-text {
    font-size: 13px;
    line-height: 1.6;
    color: rgba(226,226,226,.75);
}
.tl-text strong { color: var(--text); font-weight: 500; }
code.inline {
    font-family: var(--mono);
    font-size: 11px;
    background: var(--bg-3);
    padding: 1px 5px;
    border-radius: 3px;
}

.about-body { font-size: 14px; line-height: 1.78; color: rgba(226,226,226,.7); }
.about-body p + p { margin-top: 18px; }
.about-body strong { color: rgba(226,226,226,.9); font-weight: 500; }

/* ── Project ──────────────────────────────────────────────── */
.project-header {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    margin-bottom: 40px;
    flex-wrap: wrap;
    gap: 12px;
}
.project-title {
    font-family: var(--heading);
    font-size: 38px;
    font-weight: 700;
    letter-spacing: -.03em;
}
.version-badge {
    font-family: var(--mono);
    font-size: 11px;
    letter-spacing: .06em;
    color: var(--green);
    background: var(--green-dim);
    border: 1px solid var(--green-bd);
    padding: 4px 10px;
    border-radius: 5px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    background: var(--border);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    margin-bottom: 24px;
}
.feat {
    background: var(--bg-2);
    padding: 20px 18px;
    border-left: 2px solid transparent;
    transition: background var(--transition), border-left-color var(--transition);
    cursor: default;
}
.feat:hover {
    background: var(--bg-3);
    border-left-color: var(--green);
}
.feat-tag {
    font-family: var(--mono);
    font-size: 9px;
    letter-spacing: .13em;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 8px;
}
.feat-tag.new { color: var(--green); }
.feat-tag.red { color: #f87171; }
.feat-name {
    font-size: 13px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 5px;
    letter-spacing: -.01em;
}
.feat-desc {
    font-size: 11px;
    color: var(--muted);
    line-height: 1.58;
}

.tree-block {
    background: var(--bg-2);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px 22px;
    position: relative;
    overflow: hidden;
}
.tree-block::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 2px; height: 100%;
    background: linear-gradient(to bottom, var(--green), transparent);
}
.tree-block pre {
    font-family: var(--mono);
    font-size: 12px;
    line-height: 1.8;
    color: rgba(226,226,226,.65);
    overflow-x: auto;
    padding-left: 8px;
}
.c-green { color: var(--green); }
.c-muted { color: var(--muted); }
.c-red   { color: #f87171; }
.c-text  { color: var(--text); }
.c-blue  { color: #60a5fa; }

.project-links {
    display: flex;
    gap: 10px;
    margin-top: 24px;
    flex-wrap: wrap;
}

/* ── Stack ────────────────────────────────────────────────── */
.stack-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(155px, 1fr));
    gap: 8px;
}
.stack-item {
    background: var(--bg-2);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 13px 15px;
    transition: border-color var(--transition), background var(--transition);
}
.stack-item:hover { border-color: var(--border-h); background: var(--bg-3); }
.stack-name {
    font-family: var(--mono);
    font-size: 12px;
    color: var(--text);
    margin-bottom: 3px;
}
.stack-note { font-size: 11px; color: var(--muted); }

/* ── Series ───────────────────────────────────────────────── */
.series-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
}
.series-card {
    background: var(--bg-2);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    position: relative;
    overflow: hidden;
    transition: border-color var(--transition), transform var(--transition);
}
.series-card::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0; right: 0;
    height: 2px;
    background: var(--green);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform .3s ease;
}
.series-card:hover { border-color: var(--border-h); transform: translateY(-2px); }
.series-card:hover::after { transform: scaleX(1); }
.series-day {
    font-family: var(--mono);
    font-size: 10px;
    letter-spacing: .14em;
    text-transform: uppercase;
    color: var(--green);
    margin-bottom: 12px;
}
.series-name {
    font-family: var(--heading);
    font-size: 19px;
    font-weight: 600;
    letter-spacing: -.02em;
    margin-bottom: 10px;
}
.series-desc {
    font-size: 12px;
    color: var(--muted);
    line-height: 1.62;
}
.series-count {
    margin-top: 16px;
    font-family: var(--mono);
    font-size: 10px;
    color: var(--muted-2);
}

/* ── Reach ────────────────────────────────────────────────── */
.reach-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    background: var(--border);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}
.reach-item {
    background: var(--bg-2);
    padding: 24px;
    transition: background var(--transition);
}
.reach-item:hover { background: var(--bg-3); }
.reach-num {
    font-family: var(--heading);
    font-size: 28px;
    font-weight: 700;
    letter-spacing: -.03em;
    color: var(--text);
    margin-bottom: 5px;
}
.reach-num span { color: var(--green); }
.reach-label { font-size: 11px; color: var(--muted); line-height: 1.5; }

/* ── Connect ──────────────────────────────────────────────── */
.connect-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: start;
}
.connect-title {
    font-family: var(--heading);
    font-size: 38px;
    font-weight: 700;
    letter-spacing: -.03em;
    line-height: 1.05;
    margin-bottom: 14px;
}
.connect-sub {
    font-size: 13px;
    color: var(--muted);
    line-height: 1.68;
    margin-bottom: 24px;
}
.links-list { list-style: none; display: flex; flex-direction: column; gap: 3px; }
.links-list a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 11px 13px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 13px;
    transition: border-color var(--transition), background var(--transition);
}
.links-list a:hover { border-color: var(--border-h); background: var(--bg-2); }
.link-left { display: flex; align-items: center; gap: 10px; }
.link-platform { color: var(--text); font-weight: 500; }
.link-handle { font-family: var(--mono); font-size: 11px; color: var(--muted); }
.link-arrow { color: var(--muted-2); font-size: 11px; transition: color var(--transition); }
.links-list a:hover .link-arrow { color: var(--text); }

.looking-card {
    background: var(--bg-2);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 26px;
}
.looking-label {
    font-family: var(--mono);
    font-size: 10px;
    letter-spacing: .14em;
    text-transform: uppercase;
    color: var(--green);
    margin-bottom: 14px;
}
.looking-title {
    font-family: var(--heading);
    font-size: 19px;
    font-weight: 600;
    letter-spacing: -.02em;
    margin-bottom: 14px;
}
.looking-list { list-style: none; display: flex; flex-direction: column; gap: 9px; }
.looking-list li {
    font-size: 13px;
    color: rgba(226,226,226,.65);
    display: flex;
    align-items: flex-start;
    gap: 8px;
}
.looking-list li::before {
    content: '→';
    color: var(--green);
    font-size: 11px;
    margin-top: 2px;
    flex-shrink: 0;
}
.looking-note {
    margin-top: 18px;
    padding-top: 16px;
    border-top: 1px solid var(--border);
    font-size: 11px;
    color: var(--muted-2);
    font-family: var(--mono);
}

/* ── Terminal widget (bottom-right corner) ─────────────────── */
.term-widget {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 200;
    width: 240px;
    background: rgba(10,10,10,.96);
    border: 1px solid rgba(34,197,94,.25);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: 0 8px 32px rgba(0,0,0,.5);
    font-family: var(--mono);
    font-size: 12px;
    transition: transform var(--transition);
}
.term-widget:hover { transform: translateY(-2px); }
.term-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 9px 12px;
    background: rgba(34,197,94,.06);
    border-bottom: 1px solid rgba(34,197,94,.15);
    cursor: pointer;
    user-select: none;
}
.term-dots { display: flex; gap: 5px; }
.term-dots span {
    width: 8px; height: 8px;
    border-radius: 50%;
}
.term-dots .td-r { background: #ff5f57; }
.term-dots .td-y { background: #febc2e; }
.term-dots .td-g { background: #28c840; }
.term-title {
    font-size: 10px;
    letter-spacing: .08em;
    text-transform: uppercase;
    color: var(--green);
    flex: 1;
    text-align: center;
}
.term-toggle {
    color: var(--muted);
    font-size: 11px;
    transition: transform .25s ease;
}
.term-widget.collapsed .term-toggle { transform: rotate(180deg); }
.term-body {
    padding: 12px 14px;
    line-height: 1.7;
    color: rgba(226,226,226,.65);
    max-height: 160px;
    overflow: hidden;
    transition: max-height .35s ease, padding .35s ease;
}
.term-widget.collapsed .term-body { max-height: 0; padding: 0 14px; }
.term-line { display: flex; gap: 8px; }
.term-prompt { color: var(--green); }
.term-out    { color: rgba(226,226,226,.45); }
.term-cursor {
    display: inline-block;
    width: 7px;
    height: 13px;
    background: var(--green);
    vertical-align: text-bottom;
    animation: blink .9s step-end infinite;
}
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:0} }

/* ── Footer ───────────────────────────────────────────────── */
footer { padding: 28px 0; }
.footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 11px;
    color: var(--muted-2);
    font-family: var(--mono);
    flex-wrap: wrap;
    gap: 12px;
}
.footer-inner a { transition: color var(--transition); }
.footer-inner a:hover { color: var(--text); }
.footer-sep { opacity: .3; }

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 900px) {
    .features-grid { grid-template-columns: repeat(2,1fr); }
}
@media (max-width: 768px) {
    .stats-bar      { grid-template-columns: repeat(2,1fr); }
    .about-grid     { grid-template-columns: 1fr; gap: 32px; }
    .features-grid  { grid-template-columns: 1fr; }
    .series-grid    { grid-template-columns: 1fr; }
    .reach-grid     { grid-template-columns: repeat(2,1fr); }
    .connect-inner  { grid-template-columns: 1fr; gap: 32px; }
    .nav-links      { display: none; }
    .hero-name      { font-size: 48px; }
    .term-widget    { display: none; }
}
@media (max-width: 480px) {
    .reach-grid { grid-template-columns: 1fr; }
    .stats-bar  { grid-template-columns: 1fr 1fr; }
}