/* ============================================================
   Portfolio — design system
   Fonts: Space Grotesk (display) + JetBrains Mono (accents)
   Accent: Telegram blue. Light default + dark toggle.
   ============================================================ */

:root {
  --accent: #229ED9;
  --accent-2: #1c7cb0;
  --good: #16a34a;
  --warn: #d97706;

  --maxw: 1120px;
  --radius: 16px;
  --radius-sm: 10px;

  --font-display: "Space Grotesk", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", monospace;

  --ease: cubic-bezier(.22, 1, .36, 1);
}

/* Light theme (default) */
:root,
[data-theme="light"] {
  --bg: #fbfbfd;
  --bg-soft: #f3f4f7;
  --bg-elev: #ffffff;
  --border: #e6e8ee;
  --border-strong: #d3d7e0;
  --text: #11141a;
  --text-soft: #3c424d;
  --muted: #6b7280;
  --hero-glow: rgba(34, 158, 217, .14);
  --card-glow: rgba(17, 20, 26, .04);
}

/* Dark theme */
[data-theme="dark"] {
  --bg: #0d1117;
  --bg-soft: #131822;
  --bg-elev: #161c27;
  --border: #232b39;
  --border-strong: #2f3a4d;
  --text: #e6e9ef;
  --text-soft: #c2c8d2;
  --muted: #8b94a3;
  --hero-glow: rgba(34, 158, 217, .22);
  --card-glow: rgba(0, 0, 0, .25);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-display);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  transition: background .3s var(--ease), color .3s var(--ease);
}

a { color: inherit; text-decoration: none; }
.mono { font-family: var(--font-mono); }

/* ---------- Layout ---------- */
.container { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.section { padding: 88px 0; }
.section--soft { background: var(--bg-soft); }
.section__head { max-width: 640px; margin-bottom: 40px; }
.section__tag {
  font-family: var(--font-mono); font-size: .8rem; color: var(--accent);
  letter-spacing: .08em; text-transform: uppercase; font-weight: 600;
}
.section__head h2 {
  font-size: clamp(1.7rem, 3.5vw, 2.5rem); font-weight: 700;
  margin: 10px 0 10px; letter-spacing: -.02em; line-height: 1.15;
}
.section__head p { color: var(--muted); margin: 0; font-size: 1.05rem; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 13px 22px; border-radius: var(--radius-sm);
  font-weight: 600; font-size: .97rem; cursor: pointer; border: none;
  transition: transform .15s var(--ease), background .2s, border-color .2s, box-shadow .2s;
  font-family: var(--font-display);
}
.btn--primary { background: var(--accent); color: #fff; box-shadow: 0 6px 20px -8px var(--accent); }
.btn--primary:hover { background: var(--accent-2); transform: translateY(-2px); }
.btn--ghost { background: transparent; color: var(--text); border: 1px solid var(--border-strong); }
.btn--ghost:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }
.btn--sm { padding: 9px 16px; font-size: .88rem; }

/* ---------- Nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav__inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.nav__brand { font-weight: 700; font-size: 1.1rem; letter-spacing: -.02em; }
.nav__brand span { color: var(--accent); }
.nav__links { display: flex; align-items: center; gap: 26px; }
.nav__links a {
  color: var(--text-soft); font-size: .92rem; font-weight: 500; position: relative;
  transition: color .2s;
}
.nav__links a:hover { color: var(--text); }
.nav__links a.active { color: var(--accent); }
.nav__links a.active::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -22px; height: 2px; background: var(--accent);
}
.theme-toggle {
  background: var(--bg-elev); border: 1px solid var(--border); border-radius: 999px;
  width: 38px; height: 38px; cursor: pointer; font-size: 1rem; color: var(--text);
  display: inline-flex; align-items: center; justify-content: center; transition: border-color .2s;
}
.theme-toggle:hover { border-color: var(--accent); }
@media (max-width: 720px) {
  .nav__links a:not(.btn):not(.theme-toggle) { display: none; }
}

/* ---------- Hero ---------- */
.hero { position: relative; overflow: hidden; padding: 96px 0 72px; }
.hero__bg {
  position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background:
    radial-gradient(60% 60% at 70% 0%, var(--hero-glow), transparent 70%),
    radial-gradient(40% 40% at 10% 20%, color-mix(in srgb, var(--accent) 8%, transparent), transparent 70%);
}
.hero__inner { position: relative; z-index: 1; max-width: 820px; }
.hero__badge {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-mono); font-size: .82rem; color: var(--good);
  background: color-mix(in srgb, var(--good) 12%, transparent);
  padding: 6px 14px; border-radius: 999px; margin-bottom: 24px; font-weight: 600;
}
.hero__badge .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--good); box-shadow: 0 0 0 0 var(--good); animation: pulse 2s infinite; }
@keyframes pulse { 0%{box-shadow:0 0 0 0 color-mix(in srgb,var(--good) 60%,transparent)} 70%{box-shadow:0 0 0 8px transparent} 100%{box-shadow:0 0 0 0 transparent} }
.hero h1 {
  font-size: clamp(2.2rem, 6vw, 3.8rem); font-weight: 700;
  line-height: 1.05; letter-spacing: -.03em; margin: 0 0 22px;
}
.hero h1 .accent { color: var(--accent); }
.hero__lead { font-size: clamp(1.05rem, 2vw, 1.25rem); color: var(--text-soft); max-width: 640px; margin: 0 0 32px; }
.hero__cta { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 44px; }

/* Stats bar (Fiverr-trust style) */
.statsbar {
  display: flex; flex-wrap: wrap; gap: 8px 26px;
  padding: 18px 22px; background: var(--bg-elev); border: 1px solid var(--border);
  border-radius: var(--radius); max-width: 760px;
}
.statsbar__item { display: flex; align-items: center; gap: 8px; font-size: .9rem; color: var(--text-soft); }
.statsbar__item strong { color: var(--text); font-weight: 700; }
.statsbar__item .ic { color: var(--accent); }

/* ---------- Trust strip ---------- */
.trust { padding: 26px 0; border-bottom: 1px solid var(--border); background: var(--bg-elev); }
.trust__inner { display: flex; flex-wrap: wrap; gap: 14px 34px; align-items: center; justify-content: center; color: var(--muted); font-size: .88rem; }
.trust__inner b { color: var(--text-soft); font-weight: 600; }
.trust__sep { color: var(--border-strong); }

/* ---------- Services ---------- */
.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; }
.card {
  background: var(--bg-elev); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 26px; transition: border-color .2s, transform .15s var(--ease), box-shadow .25s;
}
.card:hover { border-color: var(--border-strong); transform: translateY(-3px); box-shadow: 0 20px 40px -24px var(--card-glow); }
.service__icon { font-size: 1.8rem; margin-bottom: 14px; }
.service h3 { margin: 0 0 6px; font-size: 1.2rem; font-weight: 700; }
.service__outcome { color: var(--accent); font-size: .92rem; font-weight: 600; margin: 0 0 14px; }
.service ul { margin: 0 0 14px; padding-left: 18px; color: var(--text-soft); font-size: .94rem; }
.service ul li { margin-bottom: 5px; }
.service__time { font-family: var(--font-mono); font-size: .8rem; color: var(--muted); }

/* ---------- Projects ---------- */
.projects-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(330px, 1fr)); gap: 20px; }
.projects-grid.has-hover .project-card:not(:hover) { opacity: .45; transform: scale(.985); }
.project-card {
  background: var(--bg-elev); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 24px; display: flex; flex-direction: column; transition: opacity .25s var(--ease), transform .25s var(--ease), border-color .2s;
}
.project-card:hover { border-color: var(--accent); }
.project-card__top { display: flex; justify-content: space-between; align-items: flex-start; gap: 10px; margin-bottom: 12px; }
.project-card__emoji { font-size: 1.5rem; }
.badge { font-size: .72rem; font-weight: 700; padding: 4px 10px; border-radius: 999px; white-space: nowrap; }
.badge--live { background: color-mix(in srgb, var(--good) 14%, transparent); color: var(--good); }
.badge--wip { background: color-mix(in srgb, var(--warn) 14%, transparent); color: var(--warn); }
.project-card h3 { margin: 0 0 10px; font-size: 1.15rem; font-weight: 700; }
.project-card__metric {
  font-family: var(--font-mono); font-size: .95rem; font-weight: 600; color: var(--text);
  background: var(--bg-soft); border: 1px solid var(--border); border-radius: var(--radius-sm);
  padding: 10px 12px; margin-bottom: 12px;
}
.project-card__metric .num { color: var(--accent); }
.project-card p { color: var(--muted); font-size: .92rem; margin: 0 0 14px; }
.tags { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 16px; }
.tag {
  font-family: var(--font-mono); font-size: .72rem; color: var(--text-soft);
  background: var(--bg-soft); border: 1px solid var(--border); padding: 3px 8px; border-radius: 6px;
}
.project-card__links { margin-top: auto; display: flex; gap: 14px; flex-wrap: wrap; }
.project-card__links a { font-size: .9rem; font-weight: 600; }
.link--accent { color: var(--accent); }
.link--accent:hover { color: var(--accent-2); }
.link--muted { color: var(--muted); cursor: default; }

/* ---------- Process ---------- */
.process { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 20px; counter-reset: step; }
.step {
  position: relative; padding: 26px 22px 22px; background: var(--bg-elev);
  border: 1px solid var(--border); border-radius: var(--radius);
}
.step::before {
  counter-increment: step; content: "0" counter(step);
  font-family: var(--font-mono); font-size: 1.1rem; font-weight: 700; color: var(--accent);
}
.step h3 { margin: 12px 0 6px; font-size: 1.08rem; font-weight: 700; }
.step p { margin: 0; color: var(--muted); font-size: .92rem; }

/* ---------- Pricing ---------- */
.price-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 18px; }
.price-card {
  background: var(--bg-elev); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 24px; display: flex; flex-direction: column; position: relative;
}
.price-card--featured { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent), 0 20px 40px -24px var(--accent); }
.price-card__flag {
  position: absolute; top: -11px; left: 24px; background: var(--accent); color: #fff;
  font-size: .7rem; font-weight: 700; padding: 4px 10px; border-radius: 999px; letter-spacing: .04em;
}
.price-card h3 { margin: 0 0 4px; font-size: 1.1rem; font-weight: 700; }
.price-card__for { color: var(--muted); font-size: .82rem; margin: 0 0 16px; }
.price-card__price { font-family: var(--font-mono); font-size: 1.7rem; font-weight: 700; color: var(--text); }
.price-card__price small { font-size: .8rem; color: var(--muted); font-weight: 500; }
.price-card ul { margin: 14px 0 18px; padding-left: 18px; color: var(--text-soft); font-size: .9rem; }
.price-card ul li { margin-bottom: 6px; }
.price-card__time { font-family: var(--font-mono); font-size: .78rem; color: var(--muted); margin-bottom: 16px; }
.price-note { color: var(--muted); font-size: .88rem; margin-top: 22px; }
.price-note b { color: var(--text-soft); }

/* ---------- FAQ ---------- */
.faq { max-width: 820px; }
.faq__item { border-bottom: 1px solid var(--border); }
.faq__q {
  width: 100%; background: none; border: none; text-align: left; cursor: pointer;
  font-family: var(--font-display); font-size: 1.02rem; font-weight: 600; color: var(--text);
  padding: 20px 0; display: flex; justify-content: space-between; gap: 16px; align-items: center;
}
.faq__q .pm { color: var(--accent); font-size: 1.3rem; transition: transform .2s; flex-shrink: 0; }
.faq__item.open .pm { transform: rotate(45deg); }
.faq__a { max-height: 0; overflow: hidden; transition: max-height .3s var(--ease); color: var(--text-soft); }
.faq__a-inner { padding: 0 0 20px; font-size: .96rem; }

/* ---------- Security ---------- */
.security {
  background: linear-gradient(135deg, color-mix(in srgb, var(--accent) 10%, var(--bg-elev)), var(--bg-elev));
  border: 1px solid var(--border); border-radius: var(--radius); padding: 34px;
}
.security__grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 20px; margin-top: 20px; }
.security__item h4 { margin: 0 0 4px; font-size: .98rem; font-weight: 700; }
.security__item p { margin: 0; color: var(--muted); font-size: .88rem; }
.security__item .ic { color: var(--good); margin-right: 6px; }

/* ---------- About ---------- */
.about { display: grid; grid-template-columns: 1.1fr .9fr; gap: 50px; align-items: start; }
@media (max-width: 760px) { .about { grid-template-columns: 1fr; gap: 30px; } }
.about__copy p { color: var(--text-soft); font-size: 1.02rem; margin: 0 0 16px; }
.about__bullets { list-style: none; padding: 0; margin: 18px 0 0; }
.about__bullets li { padding: 10px 0; border-top: 1px solid var(--border); color: var(--text-soft); }
.about__bullets li:first-child { border-top: none; }
.about__bullets b { color: var(--text); }
.timeline { position: relative; padding-left: 24px; }
.timeline::before { content: ""; position: absolute; left: 5px; top: 6px; bottom: 6px; width: 2px; background: var(--border); }
.timeline__item { position: relative; padding-bottom: 22px; }
.timeline__item::before {
  content: ""; position: absolute; left: -24px; top: 6px; width: 12px; height: 12px;
  border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 3px var(--bg);
}
.timeline__when { font-family: var(--font-mono); font-size: .78rem; color: var(--accent); }
.timeline__item h4 { margin: 4px 0 2px; font-size: 1rem; font-weight: 700; }
.timeline__item p { margin: 0; color: var(--muted); font-size: .88rem; }

/* ---------- Contact ---------- */
.contact { display: grid; grid-template-columns: 1fr 1.1fr; gap: 40px; align-items: start; }
@media (max-width: 760px) { .contact { grid-template-columns: 1fr; } }
.contact__copy h2 { font-size: clamp(1.6rem, 3vw, 2.1rem); font-weight: 700; margin: 0 0 12px; letter-spacing: -.02em; }
.contact__copy p { color: var(--muted); margin: 0 0 14px; }
.contact__points { list-style: none; padding: 0; margin: 18px 0 0; }
.contact__points li { display: flex; gap: 10px; padding: 8px 0; color: var(--text-soft); font-size: .94rem; }
.contact__points .ic { color: var(--accent); }
.form {
  background: var(--bg-elev); border: 1px solid var(--border); border-radius: var(--radius); padding: 26px;
}
.form__row { margin-bottom: 16px; }
.form__row label { display: block; font-size: .85rem; font-weight: 600; margin-bottom: 6px; color: var(--text-soft); }
.form input, .form select, .form textarea {
  width: 100%; padding: 11px 13px; border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong); background: var(--bg); color: var(--text);
  font-family: var(--font-display); font-size: .94rem; transition: border-color .2s;
}
.form input:focus, .form select:focus, .form textarea:focus { outline: none; border-color: var(--accent); }
.form textarea { min-height: 90px; resize: vertical; }
.form__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 520px) { .form__grid { grid-template-columns: 1fr; } }
.form__msg { font-size: .9rem; margin-top: 6px; }
.form__msg.ok { color: var(--good); }
.form__msg.err { color: var(--warn); }
.form__note { font-size: .78rem; color: var(--muted); margin-top: 12px; }
.form__note a { color: var(--accent); }

/* ---------- Footer ---------- */
.footer { border-top: 1px solid var(--border); padding: 30px 0; color: var(--muted); font-size: .9rem; }
.footer__inner { display: flex; justify-content: space-between; gap: 14px; flex-wrap: wrap; align-items: center; }
.footer a:hover { color: var(--accent); }

/* ---------- Case study page ---------- */
.case { padding: 60px 0 80px; }
.case__back { display: inline-flex; gap: 6px; align-items: center; color: var(--muted); font-size: .9rem; margin-bottom: 24px; }
.case__back:hover { color: var(--accent); }
.case__head__tag { font-family: var(--font-mono); color: var(--accent); font-size: .82rem; letter-spacing: .08em; text-transform: uppercase; }
.case h1 { font-size: clamp(1.9rem, 4vw, 2.8rem); font-weight: 700; letter-spacing: -.02em; margin: 10px 0 14px; line-height: 1.1; }
.case__sub { color: var(--text-soft); font-size: 1.1rem; max-width: 700px; margin: 0 0 28px; }
.case__meta { display: flex; flex-wrap: wrap; gap: 10px 26px; font-family: var(--font-mono); font-size: .84rem; color: var(--muted); margin-bottom: 30px; }
.case__meta b { color: var(--text); font-weight: 600; }
.case__demo {
  background: var(--bg-elev); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 20px; margin-bottom: 40px; display: flex; flex-wrap: wrap; gap: 16px; align-items: center; justify-content: space-between;
}
.case__demo__left h3 { margin: 0 0 4px; font-size: 1.05rem; }
.case__demo__left p { margin: 0; color: var(--muted); font-size: .9rem; }
.case__body { max-width: 760px; }
.case__body h2 { font-size: 1.4rem; font-weight: 700; margin: 40px 0 12px; letter-spacing: -.01em; }
.case__body h2 .num { font-family: var(--font-mono); color: var(--accent); font-size: .95rem; margin-right: 8px; }
.case__body p { color: var(--text-soft); font-size: 1.02rem; margin: 0 0 14px; }
.case__body ul { color: var(--text-soft); padding-left: 20px; }
.case__pull {
  border-left: 3px solid var(--accent); padding: 6px 0 6px 20px; margin: 22px 0;
  color: var(--text); font-size: 1.1rem; font-weight: 500;
}
.case__bench { background: var(--bg-soft); border: 1px solid var(--border); border-radius: var(--radius); padding: 22px; margin: 22px 0; }
.case__bench h4 { margin: 0 0 10px; font-size: .98rem; }
.case__bench ul { margin: 0; }
.case__bench li { margin-bottom: 6px; }
.case__bench a { color: var(--accent); }
.case__cta { margin-top: 44px; padding: 30px; background: linear-gradient(135deg, color-mix(in srgb, var(--accent) 12%, var(--bg-elev)), var(--bg-elev)); border: 1px solid var(--border); border-radius: var(--radius); }

/* ---------- Animations ---------- */
@keyframes fadeUp { from { opacity: 0; transform: translateY(18px); } to { opacity: 1; transform: none; } }
.reveal { opacity: 0; }
.reveal.in { animation: fadeUp .7s var(--ease) both; }
.d1 { animation-delay: .08s; } .d2 { animation-delay: .16s; } .d3 { animation-delay: .24s; }
.d4 { animation-delay: .32s; } .d5 { animation-delay: .40s; } .d6 { animation-delay: .48s; }

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; }
}