/* ==========================================================================
   evps.pl — Karol Szarafinowski
   ========================================================================== */

:root {
  --bg: #fbfaff;
  --bg-tint: #f5f3ff;
  --surface: #ffffff;
  --surface-2: #f7f6fb;
  --text: #13111c;
  --text-2: #4b4860;
  --muted: #7c7891;
  --border: #ebe8f3;
  --shadow: 0 10px 30px -12px rgba(76, 29, 149, .18);
  --shadow-lg: 0 30px 60px -20px rgba(76, 29, 149, .28);

  --pink: #ec4899;
  --violet: #8b5cf6;
  --blue: #3b82f6;
  --green: #10b981;
  --orange: #f97316;
  --teal: #14b8a6;
  --grad: linear-gradient(135deg, var(--pink) 0%, var(--violet) 100%);
  --grad-soft: linear-gradient(135deg, rgba(236, 72, 153, .12), rgba(139, 92, 246, .12));

  --radius: 18px;
  --radius-sm: 12px;
  --font: "Plus Jakarta Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --container: 1180px;
  --nav-h: 72px;

  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0c0a14;
    --bg-tint: #110e1c;
    --surface: #171423;
    --surface-2: #1e1a2d;
    --text: #f3f1fa;
    --text-2: #c2bdd6;
    --muted: #8d88a6;
    --border: #2a2540;
    --shadow: 0 10px 30px -12px rgba(0, 0, 0, .6);
    --shadow-lg: 0 30px 60px -20px rgba(0, 0, 0, .7);
    --grad-soft: linear-gradient(135deg, rgba(236, 72, 153, .18), rgba(139, 92, 246, .2));
    color-scheme: dark;
  }
}

:root[data-theme="dark"] {
  --bg: #0c0a14;
  --bg-tint: #110e1c;
  --surface: #171423;
  --surface-2: #1e1a2d;
  --text: #f3f1fa;
  --text-2: #c2bdd6;
  --muted: #8d88a6;
  --border: #2a2540;
  --shadow: 0 10px 30px -12px rgba(0, 0, 0, .6);
  --shadow-lg: 0 30px 60px -20px rgba(0, 0, 0, .7);
  --grad-soft: linear-gradient(135deg, rgba(236, 72, 153, .18), rgba(139, 92, 246, .2));
  color-scheme: dark;
}

/* ---------- Base ---------- */

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

html { scroll-behavior: smooth; scroll-padding-top: calc(var(--nav-h) + 12px); -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  transition: background-color .3s, color .3s;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 { margin: 0; line-height: 1.15; letter-spacing: -.02em; }
p { margin: 0; }
ul { margin: 0; padding: 0; list-style: none; }
button, input, select, textarea { font: inherit; color: inherit; }

.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 24px; }

.ico {
  width: 1.15em; height: 1.15em; flex: none;
  fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round;
}

.gradient-text {
  background: var(--grad);
  -webkit-background-clip: text; background-clip: text;
  color: transparent;
}

.skip-link {
  position: absolute; left: 16px; top: -60px; z-index: 100;
  padding: 10px 16px; border-radius: 10px; background: var(--violet); color: #fff; font-weight: 600;
}
.skip-link:focus { top: 12px; }

:focus-visible { outline: 2px solid var(--violet); outline-offset: 3px; border-radius: 6px; }

/* ---------- Buttons, chips, pills ---------- */

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5em;
  padding: 13px 24px; border-radius: 999px; border: 1px solid transparent;
  font-weight: 600; font-size: 15px; cursor: pointer; white-space: nowrap;
  transition: transform .2s, box-shadow .2s, background-color .2s, border-color .2s;
}
.btn:hover { transform: translateY(-2px); }
.btn--primary { background: var(--grad); color: #fff; box-shadow: 0 10px 24px -10px rgba(139, 92, 246, .7); }
.btn--primary:hover { box-shadow: 0 16px 30px -10px rgba(236, 72, 153, .6); }
.btn--ghost { background: var(--surface); border-color: var(--border); color: var(--text); box-shadow: var(--shadow); }
.btn--ghost:hover { border-color: var(--violet); }
.btn--light { background: #fff; color: #4c1d95; }
.btn--sm { padding: 9px 18px; font-size: 14px; }
.btn--block { width: 100%; }
.btn .ico { transition: transform .2s; }
.btn:hover .ico:last-child { transform: translateX(3px); }

.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  padding: 6px 14px; border-radius: 999px; font-size: 13px; font-weight: 600; color: #fff;
  background: var(--violet);
}
.chip--violet { background: var(--violet); }
.chip--pink { background: var(--pink); }
.chip--blue { background: var(--blue); }
.chip--green { background: var(--green); }
.chip--orange { background: var(--orange); }
.chip--teal { background: var(--teal); }
.chips--soft .chip {
  background: var(--surface); color: var(--text-2); border: 1px solid var(--border); font-weight: 500;
  transition: border-color .2s, color .2s, transform .2s;
}
.chips--soft .chip:hover { border-color: var(--violet); color: var(--violet); transform: translateY(-2px); }

.pill {
  display: inline-block; padding: 5px 14px; border-radius: 999px;
  background: var(--grad-soft); color: var(--violet); font-size: 13px; font-weight: 700; letter-spacing: .02em;
}

.tags { display: flex; flex-wrap: wrap; gap: 6px; }
.tag {
  padding: 3px 10px; border-radius: 999px; font-size: 12px; font-weight: 600;
  background: var(--surface-2); color: var(--text-2); border: 1px solid var(--border);
}
.tag--pink { background: var(--grad); color: #fff; border-color: transparent; }

.ticks { display: grid; gap: 8px; }
.ticks li { position: relative; padding-left: 28px; font-size: 14px; color: var(--text-2); }
.ticks li::before {
  content: ""; position: absolute; left: 0; top: 2px; width: 18px; height: 18px; border-radius: 50%;
  background: var(--grad-soft) ;
}
.ticks li::after {
  content: ""; position: absolute; left: 6px; top: 6px; width: 5px; height: 8px;
  border: solid var(--violet); border-width: 0 2px 2px 0; transform: rotate(45deg);
}
.ticks--inline { grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }

.icon-btn {
  display: inline-grid; place-items: center; width: 40px; height: 40px; border-radius: 12px;
  background: var(--surface); border: 1px solid var(--border); cursor: pointer;
  transition: border-color .2s, color .2s;
}
.icon-btn:hover { border-color: var(--violet); color: var(--violet); }
.lang-btn { font-size: 13px; font-weight: 700; letter-spacing: .04em; }

/* ---------- Nav ---------- */

.nav {
  position: sticky; top: 0; z-index: 50; height: var(--nav-h);
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  backdrop-filter: saturate(160%) blur(14px); -webkit-backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid transparent; transition: border-color .3s, box-shadow .3s;
}
.nav.is-scrolled { border-color: var(--border); box-shadow: 0 6px 20px -16px rgba(0, 0, 0, .3); }
.nav__inner { height: 100%; display: flex; align-items: center; gap: 24px; }

.logo { display: inline-flex; align-items: center; gap: 10px; color: var(--text); }
.logo__mark { width: 40px; height: 40px; flex: none; transition: transform .3s cubic-bezier(.2, .8, .2, 1); }
.logo__word { width: 74px; height: 26px; overflow: visible; }
.logo__word text { font-family: var(--font); font-weight: 800; font-size: 22px; letter-spacing: -.04em; fill: currentColor; }
.logo__tld { fill: url(#grad); }
.logo-signal { animation: signal 2.4s linear infinite; }
.logo-node { transform-origin: 30.5px 20px; animation: node 2.4s ease-in-out infinite; }
.logo:hover .logo__mark { transform: rotate(-6deg) scale(1.06); }
@keyframes signal { to { stroke-dashoffset: -7; } }
@keyframes node { 0%, 100% { transform: scale(1); opacity: 1; } 50% { transform: scale(.75); opacity: .75; } }

.nav__links { display: flex; gap: 4px; margin-left: auto; }
.nav__links a {
  padding: 8px 12px; border-radius: 10px; font-size: 14px; font-weight: 500; color: var(--text-2);
  transition: color .2s, background-color .2s;
}
.nav__links a:hover, .nav__links a.is-active { color: var(--violet); background: var(--grad-soft); }

.nav__actions { display: flex; align-items: center; gap: 8px; }
.nav__burger { display: none; }
.ico--moon, .ico--close { display: none; }
:root[data-theme="dark"] .ico--sun { display: none; }
:root[data-theme="dark"] .ico--moon { display: block; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .ico--sun { display: none; }
  :root:not([data-theme="light"]) .ico--moon { display: block; }
}

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

.hero { position: relative; padding: 64px 0 96px; overflow: hidden; }
.hero__blob { position: absolute; border-radius: 50%; filter: blur(80px); opacity: .5; pointer-events: none; }
.hero__blob--1 { width: 520px; height: 520px; right: -120px; top: -160px; background: rgba(236, 72, 153, .35); }
.hero__blob--2 { width: 460px; height: 460px; left: -180px; bottom: -200px; background: rgba(139, 92, 246, .3); }

.hero__inner { position: relative; display: grid; grid-template-columns: 1.05fr 1fr; gap: 48px; align-items: center; }

.status {
  display: inline-flex; align-items: center; gap: 8px; padding: 6px 14px 6px 10px; border-radius: 999px;
  background: var(--surface); border: 1px solid var(--border); font-size: 13px; font-weight: 600; color: var(--text-2);
  box-shadow: var(--shadow);
}
.status__dot { position: relative; width: 8px; height: 8px; border-radius: 50%; background: var(--green); }
.status__dot::after {
  content: ""; position: absolute; inset: -4px; border-radius: 50%; background: var(--green); opacity: .4;
  animation: ping 1.8s ease-out infinite;
}

.hero__hello { margin-top: 28px; font-size: 22px; font-weight: 500; color: var(--muted); }
.hero__name { margin-top: 6px; font-size: clamp(44px, 7vw, 80px); font-weight: 800; letter-spacing: -.035em; line-height: 1.02; }
.hero__role { margin-top: 14px; font-size: clamp(20px, 2.6vw, 28px); font-weight: 700; min-height: 1.4em; }
.caret { display: inline-block; width: 3px; height: .95em; margin-left: 3px; vertical-align: -.1em; background: var(--violet); animation: blink 1s steps(1) infinite; }
.hero__lead { margin-top: 18px; max-width: 540px; font-size: 17px; color: var(--text-2); }
.hero .chips { margin-top: 24px; }
.hero__cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }

.hero__social { display: flex; align-items: center; gap: 10px; margin-top: 30px; font-size: 14px; color: var(--muted); }
.social {
  display: grid; place-items: center; width: 38px; height: 38px; border-radius: 50%;
  background: var(--surface); border: 1px solid var(--border); color: var(--text-2);
  transition: color .2s, border-color .2s, transform .2s;
}
.social:hover { color: var(--violet); border-color: var(--violet); transform: translateY(-2px); }

.hero__visual { display: flex; justify-content: center; }
.portrait { position: relative; width: min(420px, 82vw); aspect-ratio: 1; }
.portrait__ring {
  position: absolute; inset: -14px; border-radius: 50%;
  background: conic-gradient(from 0deg, var(--pink), var(--violet), var(--blue), var(--pink));
  animation: spin 14s linear infinite;
}
.portrait__ring::after { content: ""; position: absolute; inset: 8px; border-radius: 50%; background: var(--bg); }
.portrait__img { position: relative; width: 100%; height: 100%; object-fit: cover; border-radius: 50%; box-shadow: var(--shadow-lg); }

.float-card {
  position: absolute; z-index: 2; display: flex; align-items: center; gap: 10px;
  padding: 12px 14px; border-radius: 16px; background: var(--surface); border: 1px solid var(--border);
  box-shadow: var(--shadow-lg); font-size: 13px; line-height: 1.3; animation: float 6s ease-in-out infinite;
}
.float-card strong { display: block; font-size: 15px; }
.float-card small { display: block; color: var(--muted); font-size: 12px; }
.float-card__icon {
  display: grid; place-items: center; width: 38px; height: 38px; border-radius: 12px; background: var(--grad); color: #fff;
}
.float-card__icon--alt { background: linear-gradient(135deg, var(--blue), var(--teal)); }

.float-card--code {
  top: 2%; right: -14%; display: block; padding: 12px 14px 14px; background: #16131f; border-color: #2a2540; color: #e9e6f5;
  animation-delay: -2s;
}
.float-card--code pre { margin: 6px 0 0; font-family: var(--mono); font-size: 11.5px; line-height: 1.6; }
.code-dots { display: flex; gap: 5px; }
.code-dots i { width: 9px; height: 9px; border-radius: 50%; background: #ff5f57; }
.code-dots i:nth-child(2) { background: #febc2e; }
.code-dots i:nth-child(3) { background: #28c840; }
.c-var { color: #f9a8d4; } .c-kw { color: #c4b5fd; } .c-cls { color: #93c5fd; } .c-str { color: #86efac; } .c-num { color: #fdba74; }

.float-card--stat { bottom: 10%; left: -10%; flex-direction: column; align-items: flex-start; gap: 0; animation-delay: -4s; }
.float-card--stat strong { font-size: 28px; font-weight: 800; }
.float-card--cert { bottom: -2%; right: 0; }

.orb {
  position: absolute; z-index: 2; display: grid; place-items: center; width: 44px; height: 44px; border-radius: 50%;
  color: #fff; box-shadow: var(--shadow-lg); animation: float 5s ease-in-out infinite;
}
.orb--1 { top: 34%; left: -6%; background: var(--violet); animation-delay: -1s; }
.orb--2 { top: -2%; left: 18%; background: var(--pink); animation-delay: -3s; }

/* ---------- Sections ---------- */

.section { padding: 104px 0; }
.section--tint { background: var(--bg-tint); }
.section__head { max-width: 680px; margin: 0 auto 56px; text-align: center; }
.section__head h2 { margin-top: 14px; font-size: clamp(32px, 4.4vw, 48px); font-weight: 800; }
.section__head p { margin-top: 14px; font-size: 17px; color: var(--text-2); }
.center { margin-top: 40px; text-align: center; }

/* ---------- About ---------- */

.about { display: grid; grid-template-columns: .9fr 1.1fr; gap: 64px; align-items: center; }
.about__photo { position: relative; max-width: 440px; justify-self: center; }
.about__photo img { border-radius: 28px; box-shadow: var(--shadow-lg); aspect-ratio: 1; object-fit: cover; }
.about__photo::before {
  content: ""; position: absolute; inset: 18px -18px -18px 18px; border-radius: 28px; background: var(--grad); opacity: .25; z-index: -1;
}
.float-card--about-top { top: 22px; right: -28px; }
.float-card--about-bottom { bottom: 22px; left: -28px; animation-delay: -3s; }

.about__text h3 { font-size: clamp(24px, 3vw, 32px); font-weight: 800; }
.about__text p { margin-top: 16px; color: var(--text-2); }

.highlights { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 30px; }
.highlights li {
  display: flex; align-items: flex-start; gap: 12px; padding: 16px; border-radius: 16px;
  background: var(--surface); border: 1px solid var(--border); transition: border-color .2s, transform .2s;
}
.highlights li:hover { border-color: var(--violet); transform: translateY(-2px); }
.highlights strong { display: block; font-size: 15px; }
.highlights small { display: block; margin-top: 2px; font-size: 13px; line-height: 1.5; color: var(--muted); }
.highlights__icon {
  display: grid; place-items: center; flex: none; width: 38px; height: 38px; border-radius: 12px; background: var(--grad-soft); color: var(--violet);
}
.about__cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }

.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: 80px; }
.stat {
  display: flex; flex-direction: column; align-items: center; gap: 6px; padding: 28px 16px; text-align: center;
  border-radius: var(--radius); background: var(--surface); border: 1px solid var(--border); box-shadow: var(--shadow);
}
.stat strong { font-size: 30px; font-weight: 800; }
.stat > span:last-child { font-size: 14px; color: var(--muted); }
.stat__icon { display: grid; place-items: center; width: 52px; height: 52px; border-radius: 16px; color: #fff; margin-bottom: 6px; }
.stat__icon .ico, .card__icon .ico { width: 24px; height: 24px; }
.stat__icon--blue { background: var(--blue); } .stat__icon--violet { background: var(--violet); }
.stat__icon--green { background: var(--green); } .stat__icon--orange { background: var(--orange); }

/* ---------- Service cards ---------- */

.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.card {
  position: relative; display: flex; flex-direction: column; gap: 14px; padding: 30px;
  border-radius: var(--radius); background: var(--surface); border: 1px solid var(--border); box-shadow: var(--shadow);
  transition: transform .3s, box-shadow .3s, border-color .3s;
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: color-mix(in srgb, var(--violet) 40%, var(--border)); }
.card h3 { font-size: 20px; font-weight: 700; }
.card p { font-size: 15px; color: var(--text-2); }
.card .ticks { margin-top: 4px; }
.card__icon { display: grid; place-items: center; width: 52px; height: 52px; border-radius: 16px; color: #fff; }
.card__icon--violet { background: var(--violet); } .card__icon--pink { background: var(--pink); }
.card__icon--green { background: var(--green); } .card__icon--orange { background: var(--orange); }
.card__icon--blue { background: var(--blue); } .card__icon--teal { background: var(--teal); }

/* ---------- Calculator ---------- */

.calc {
  display: grid; grid-template-columns: 1.25fr 1fr; overflow: hidden;
  border-radius: 28px; background: var(--surface); border: 1px solid var(--border); box-shadow: var(--shadow-lg);
}
.calc__inputs { display: grid; gap: 26px; padding: 40px; }
.range { display: grid; grid-template-columns: 1fr auto; gap: 10px 16px; align-items: center; }
.range label { display: flex; align-items: center; gap: 8px; font-size: 15px; font-weight: 600; }
.range label .ico { color: var(--violet); }
.range output {
  min-width: 72px; padding: 4px 12px; border-radius: 10px; text-align: center;
  background: var(--grad-soft); color: var(--violet); font-weight: 700; font-variant-numeric: tabular-nums;
}
.range input { grid-column: 1 / -1; }

input[type="range"] {
  --p: 50%;
  width: 100%; height: 8px; margin: 0; border-radius: 999px; cursor: pointer; appearance: none; -webkit-appearance: none;
  background: linear-gradient(90deg, var(--pink), var(--violet)) 0 / var(--p) 100% no-repeat, var(--surface-2);
  border: 1px solid var(--border);
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none; width: 22px; height: 22px; border-radius: 50%;
  background: #fff; border: 3px solid var(--violet); box-shadow: 0 4px 10px rgba(139, 92, 246, .4); transition: transform .15s;
}
input[type="range"]::-moz-range-thumb {
  width: 18px; height: 18px; border-radius: 50%; background: #fff; border: 3px solid var(--violet); box-shadow: 0 4px 10px rgba(139, 92, 246, .4);
}
input[type="range"]:active::-webkit-slider-thumb { transform: scale(1.15); }
.calc__note { font-size: 13px; color: var(--muted); }

.calc__result {
  position: relative; display: flex; flex-direction: column; justify-content: center; gap: 22px; padding: 40px;
  background: var(--grad); color: #fff; overflow: hidden;
}
.calc__result::before {
  content: ""; position: absolute; width: 320px; height: 320px; right: -120px; top: -120px; border-radius: 50%;
  background: rgba(255, 255, 255, .12);
}
.calc__metric { position: relative; display: flex; flex-direction: column; }
.calc__metric > span { font-size: 14px; opacity: .85; }
.calc__metric strong { font-size: 30px; font-weight: 800; letter-spacing: -.02em; font-variant-numeric: tabular-nums; }
.calc__metric small { font-size: 13px; opacity: .8; }
.calc__metric--main strong { font-size: clamp(38px, 4.4vw, 52px); line-height: 1.1; }
.calc__result .btn { position: relative; align-self: flex-start; }

/* ---------- Work ---------- */

.feature {
  display: grid; grid-template-columns: .8fr 1.2fr; overflow: hidden; margin-bottom: 24px;
  border-radius: 24px; background: var(--surface); border: 1px solid var(--border); box-shadow: var(--shadow);
}
.feature__visual {
  position: relative; min-height: 280px; display: grid; place-items: end center; padding: 32px 32px 0;
  background: linear-gradient(135deg, #1e1b4b, #4c1d95 55%, #be185d);
}
.feature__glyph {
  position: absolute; top: 24px; left: 24px; display: grid; place-items: center; width: 52px; height: 52px; border-radius: 16px;
  background: rgba(255, 255, 255, .14); color: #fff; backdrop-filter: blur(6px);
}
.feature__glyph .ico { width: 26px; height: 26px; }
.mini-chart { display: flex; align-items: flex-end; gap: 10px; width: 100%; max-width: 320px; height: 190px; }
.mini-chart i {
  flex: 1; height: var(--h); border-radius: 10px 10px 0 0; background: linear-gradient(180deg, #f9a8d4, rgba(196, 181, 253, .35));
  transform-origin: bottom; transform: scaleY(.15); transition: transform 1s cubic-bezier(.2, .8, .2, 1);
}
.mini-chart i:nth-child(2) { transition-delay: .08s; } .mini-chart i:nth-child(3) { transition-delay: .16s; }
.mini-chart i:nth-child(4) { transition-delay: .24s; } .mini-chart i:nth-child(5) { transition-delay: .32s; }
.mini-chart i:nth-child(6) { transition-delay: .4s; } .mini-chart i:nth-child(7) { transition-delay: .48s; }
.feature.is-visible .mini-chart i, html:not(.js) .mini-chart i { transform: scaleY(1); }

.feature__body { display: flex; flex-direction: column; gap: 16px; padding: 40px; }
.feature__body h3 { font-size: clamp(24px, 3vw, 30px); font-weight: 800; }
.feature__body p { color: var(--text-2); }

.work {
  display: flex; flex-direction: column; overflow: hidden; border-radius: var(--radius);
  background: var(--surface); border: 1px solid var(--border); box-shadow: var(--shadow); transition: transform .3s, box-shadow .3s;
}
.work:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.work__cover { display: grid; place-items: center; height: 150px; color: #fff; position: relative; overflow: hidden; }
.work__cover::after {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(circle at 20% 20%, rgba(255, 255, 255, .25), transparent 45%),
              repeating-linear-gradient(135deg, rgba(255, 255, 255, .06) 0 2px, transparent 2px 14px);
}
.work__cover .ico { width: 48px; height: 48px; stroke-width: 1.6; transition: transform .4s; }
.work:hover .work__cover .ico { transform: scale(1.12) rotate(-4deg); }
.work__cover--violet { background: linear-gradient(135deg, #7c3aed, #a855f7); }
.work__cover--pink { background: linear-gradient(135deg, #db2777, #f472b6); }
.work__cover--orange { background: linear-gradient(135deg, #ea580c, #fb923c); }
.work__cover--blue { background: linear-gradient(135deg, #2563eb, #60a5fa); }
.work__cover--green { background: linear-gradient(135deg, #059669, #34d399); }
.work__cover--teal { background: linear-gradient(135deg, #0d9488, #2dd4bf); }
.work__body { display: flex; flex-direction: column; gap: 12px; padding: 24px; }
.work__body h3 { font-size: 19px; font-weight: 700; }
.work__body p { font-size: 15px; color: var(--text-2); }

/* ---------- Open source ---------- */

.repo, .cert {
  display: flex; flex-direction: column; gap: 14px; padding: 28px; border-radius: var(--radius);
  background: var(--surface); border: 1px solid var(--border); box-shadow: var(--shadow); transition: transform .3s, box-shadow .3s, border-color .3s;
}
.repo:hover, .cert:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: var(--violet); }
.repo__head { display: flex; align-items: center; gap: 10px; font-family: var(--mono); font-size: 14px; color: var(--text-2); }
.repo__head strong { color: var(--text); }
.repo__ext { margin-left: auto; color: var(--muted); }
.repo p { flex: 1; font-size: 15px; color: var(--text-2); }

.cert { position: relative; overflow: hidden; background: var(--grad); color: #fff; border-color: transparent; }
.cert::before { content: ""; position: absolute; width: 220px; height: 220px; right: -70px; bottom: -90px; border-radius: 50%; background: rgba(255, 255, 255, .14); }
.cert__icon { display: grid; place-items: center; width: 52px; height: 52px; border-radius: 16px; background: rgba(255, 255, 255, .2); }
.cert__icon .ico { width: 26px; height: 26px; }
.cert__label { font-size: 13px; font-weight: 600; opacity: .85; text-transform: uppercase; letter-spacing: .08em; }
.cert strong { font-size: 28px; font-weight: 800; margin-top: -10px; }
.cert p { position: relative; flex: 1; font-size: 15px; opacity: .92; }
.cert__link { position: relative; display: inline-flex; align-items: center; gap: 6px; font-weight: 700; }

/* ---------- Stack ---------- */

.stack { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 20px; }
.stack__group { padding: 26px; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--border); }
.stack__group h3 { margin-bottom: 16px; font-size: 15px; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); }

/* ---------- Contact ---------- */

.contact { display: grid; grid-template-columns: .9fr 1.1fr; gap: 32px; }
.contact__info, .contact__form {
  padding: 36px; border-radius: 24px; background: var(--surface); border: 1px solid var(--border); box-shadow: var(--shadow);
}
.contact__info h3 { font-size: 24px; font-weight: 800; }
.contact__info > p { margin-top: 12px; color: var(--text-2); }
.contact__list { display: grid; gap: 14px; margin-top: 28px; }
.contact__list li { display: flex; align-items: center; gap: 14px; padding: 14px; border-radius: 16px; background: var(--surface-2); }
.contact__list small { display: block; font-size: 12px; color: var(--muted); }
.contact__list a { font-weight: 600; }
.contact__list a:hover { color: var(--violet); }
.contact__icon { display: grid; place-items: center; width: 44px; height: 44px; border-radius: 14px; color: #fff; }
.contact__icon--violet { background: var(--violet); } .contact__icon--blue { background: var(--blue); } .contact__icon--pink { background: var(--pink); } .contact__icon--green { background: var(--green); } .contact__icon--orange { background: var(--orange); }

.contact__form { display: grid; gap: 18px; }

.contact__mail {
  position: relative; display: flex; flex-direction: column; align-items: flex-start; justify-content: center; gap: 16px; overflow: hidden;
  padding: 44px; border-radius: 24px; background: var(--surface); border: 1px solid var(--border); box-shadow: var(--shadow);
}
.contact__mail::before {
  content: ""; position: absolute; width: 360px; height: 360px; right: -140px; top: -160px; border-radius: 50%;
  background: var(--grad); opacity: .12; pointer-events: none;
}
.contact__mail-icon { display: grid; place-items: center; width: 56px; height: 56px; border-radius: 18px; background: var(--grad); color: #fff; }
.contact__mail-icon .ico { width: 26px; height: 26px; }
.contact__mail h3 { font-size: 26px; font-weight: 800; }
.contact__mail p { max-width: 460px; color: var(--text-2); }
.contact__mail-address {
  font-size: clamp(20px, 2.6vw, 30px); font-weight: 800; letter-spacing: -.02em; word-break: break-all;
  background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.contact__mail-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 4px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field { display: grid; gap: 8px; font-size: 14px; font-weight: 600; }
.field input, .field select, .field textarea {
  width: 100%; padding: 13px 16px; border-radius: var(--radius-sm); border: 1px solid var(--border);
  background: var(--surface-2); font-size: 15px; font-weight: 400; transition: border-color .2s, box-shadow .2s;
}
.field textarea { resize: vertical; min-height: 130px; }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--violet); box-shadow: 0 0 0 4px rgba(139, 92, 246, .15);
}
.consent { display: flex; align-items: flex-start; gap: 10px; font-size: 13px; color: var(--muted); }
.consent input { margin-top: 3px; accent-color: var(--violet); }

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

.footer { padding: 72px 0 28px; background: #0f0c19; color: #c9c4dd; }
.footer .logo { color: #fff; }
.footer__inner { display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 40px; }
.footer__brand p { margin-top: 16px; max-width: 360px; font-size: 14px; }
.footer__social { display: flex; gap: 10px; margin-top: 20px; }
.footer .social { background: #1b172a; border-color: #2a2540; color: #c9c4dd; }
.footer__col { display: flex; flex-direction: column; gap: 10px; font-size: 14px; }
.footer__col h4 { margin-bottom: 6px; color: #fff; font-size: 15px; }
.footer__col a:hover, .footer__bottom a:hover { color: #f9a8d4; }
.footer__bottom {
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  margin-top: 48px; padding-top: 24px; border-top: 1px solid #2a2540; font-size: 13px; color: #8d88a6;
}

/* ---------- Reveal on scroll ---------- */

.js .reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s cubic-bezier(.2, .8, .2, 1); }
.js .reveal.is-visible { opacity: 1; transform: none; }

/* ---------- Animations ---------- */

@keyframes ping { 0% { transform: scale(.6); opacity: .5; } 100% { transform: scale(2.2); opacity: 0; } }
@keyframes blink { 50% { opacity: 0; } }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
  .js .reveal { opacity: 1; transform: none; }
  .mini-chart i { transform: none; }
}

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

@media (max-width: 1080px) {
  .nav__links a { padding: 8px 8px; }
  .float-card--code { right: -4%; }
}

@media (max-width: 960px) {
  .nav__burger { display: inline-grid; }
  .nav__actions { margin-left: auto; }
  .nav__cta { display: none; }
  .nav__links {
    position: fixed; inset: var(--nav-h) 0 auto 0; flex-direction: column; gap: 2px; padding: 12px 16px 20px;
    background: var(--bg); border-bottom: 1px solid var(--border); box-shadow: var(--shadow-lg);
    transform: translateY(-12px); opacity: 0; visibility: hidden; transition: opacity .25s, transform .25s, visibility .25s;
  }
  .nav__links a { padding: 12px 14px; font-size: 16px; }
  .nav.is-open .nav__links { transform: none; opacity: 1; visibility: visible; }
  .nav.is-open .ico--open { display: none; }
  .nav.is-open .ico--close { display: block; }

  .hero { padding-top: 40px; }
  .hero__inner, .about, .calc, .feature, .contact { grid-template-columns: 1fr; }
  .hero__visual { order: -1; margin-bottom: 24px; }
  .portrait { width: min(340px, 70vw); }
  .about { gap: 48px; }
  .cards { grid-template-columns: repeat(2, 1fr); }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .footer__inner { grid-template-columns: 1fr 1fr; }
  .footer__brand { grid-column: 1 / -1; }
}

@media (max-width: 640px) {
  .container { padding: 0 16px; }
  .section { padding: 72px 0; }
  .section__head { margin-bottom: 40px; }
  .cards { grid-template-columns: 1fr; }
  .form-row, .highlights { grid-template-columns: 1fr; }
  .calc__inputs, .calc__result, .feature__body, .contact__info, .contact__form, .contact__mail { padding: 24px; }
  .float-card--code { display: none; }
  .float-card--stat { left: -4%; padding: 10px 12px; }
  .float-card--stat strong { font-size: 22px; }
  .float-card--cert { right: -4%; }
  .about__photo::before { inset: 12px -12px -12px 12px; }
  .float-card--about-top { right: -8px; }
  .float-card--about-bottom { left: -8px; }
  .orb { width: 38px; height: 38px; }
  .orb--1 { left: -2%; }
  .stats { gap: 12px; margin-top: 56px; }
  .stat { padding: 20px 10px; }
  .stat strong { font-size: 24px; }
  .hero__cta .btn { flex: 1 1 auto; }
}