/* ============================================================
   swsw.cz — Swaczyna Software
   Palette: deep navy base (from brand #20283C), brand paper
   #F3F2ED, copper accent (Java warmth), periwinkle secondary.
   Type: Bricolage Grotesque (display) / Instrument Sans (body)
   / JetBrains Mono (labels, annotations, data).
   ============================================================ */

:root {
  --bg: #141a2a;
  --bg-elev: #1b2336;
  --navy: #20283c;          /* brand navy */
  --paper: #f3f2ed;         /* brand light */
  --muted: #a9afc0;
  --muted-2: rgba(243, 242, 237, 0.45);
  --line: rgba(243, 242, 237, 0.1);
  --copper: #e29a5c;
  --copper-bright: #f0b37e;
  --rose: #d588a0;
  --peri: #8fa3e8;
  --live: #7ed9a2;
  --grad: linear-gradient(100deg, var(--copper-bright), var(--rose) 48%, var(--peri));
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --font-display: "Bricolage Grotesque", "Instrument Sans", sans-serif;
  --font-body: "Instrument Sans", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;
}

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

html {
  scroll-padding-top: 96px;
}
@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}

body {
  background: var(--bg);
  color: var(--paper);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

::selection { background: rgba(226, 154, 92, 0.35); color: var(--paper); }

:focus-visible {
  outline: 2px solid var(--copper);
  outline-offset: 3px;
  border-radius: 4px;
}

img, svg { display: block; max-width: 100%; }

.mono { font-family: var(--font-mono); }

.wrap {
  max-width: 1140px;
  margin-inline: auto;
  padding-inline: clamp(20px, 5vw, 48px);
}

/* ============ ambient background ============ */

.beams {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
}

.beam {
  position: absolute;
  width: 160%;
  height: 380px;
  left: -30%;
  background: linear-gradient(90deg,
    transparent 0%,
    rgba(226, 154, 92, 0.055) 30%,
    rgba(213, 136, 160, 0.05) 55%,
    rgba(143, 163, 232, 0.06) 75%,
    transparent 100%);
  transform: rotate(-12deg);
}
.beam-a { top: -140px; animation: beam-drift 22s ease-in-out infinite alternate; }
.beam-b { top: 42%; opacity: 0.6; animation: beam-drift 30s ease-in-out infinite alternate-reverse; }

@keyframes beam-drift {
  from { transform: rotate(-12deg) translateX(-4%); }
  to   { transform: rotate(-12deg) translateX(4%); }
}

.glow {
  position: absolute;
  width: 900px;
  height: 900px;
  border-radius: 50%;
}
.glow-copper {
  top: -320px;
  right: -240px;
  background: radial-gradient(closest-side, rgba(226, 154, 92, 0.1), transparent 70%);
  animation: glow-drift 26s ease-in-out infinite alternate;
}
.glow-peri {
  bottom: -380px;
  left: -300px;
  background: radial-gradient(closest-side, rgba(143, 163, 232, 0.09), transparent 70%);
  animation: glow-drift 32s ease-in-out infinite alternate-reverse;
}

@keyframes glow-drift {
  from { transform: translate(0, 0) scale(1); }
  to   { transform: translate(-60px, 40px) scale(1.08); }
}

.dotgrid {
  position: absolute;
  inset: 0 0 auto 0;
  height: 100vh;
  background-image: radial-gradient(rgba(243, 242, 237, 0.05) 1px, transparent 1.3px);
  background-size: 26px 26px;
  -webkit-mask-image: radial-gradient(ellipse 75% 55% at 60% 0%, black, transparent 72%);
  mask-image: radial-gradient(ellipse 75% 55% at 60% 0%, black, transparent 72%);
}

/* ============ header ============ */

.site-head {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  transition: background-color 0.35s ease, border-color 0.35s ease, backdrop-filter 0.35s ease;
  border-bottom: 1px solid transparent;
}
.site-head.scrolled {
  background: rgba(20, 26, 42, 0.78);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border-bottom-color: var(--line);
}

.head-inner {
  max-width: 1140px;
  margin-inline: auto;
  padding: 0 clamp(20px, 5vw, 48px);
  height: 72px;
  display: flex;
  align-items: center;
  gap: 2rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
  color: var(--paper);
}
.brand-mark { width: 34px; height: 26px; color: var(--copper); }
.brand-word {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.01em;
}
.brand-tld { color: var(--copper); }

.head-nav {
  display: flex;
  gap: 1.7rem;
  margin-left: auto;
}
.head-nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
  position: relative;
  transition: color 0.25s ease;
}
.head-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -5px;
  height: 1.5px;
  background: var(--grad);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s var(--ease-out);
}
.head-nav a:hover { color: var(--paper); }
.head-nav a:hover::after { transform: scaleX(1); }

.head-tools {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.lang-toggle {
  display: flex;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 3px;
}
.lang-toggle button {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  padding: 0.32rem 0.68rem;
  border: 0;
  border-radius: 999px;
  background: none;
  color: var(--muted);
  cursor: pointer;
  transition: background-color 0.25s ease, color 0.25s ease;
}
.lang-toggle button[aria-pressed="true"] {
  background: rgba(226, 154, 92, 0.16);
  color: var(--copper-bright);
}
.lang-toggle button:hover { color: var(--paper); }
.lang-toggle button[aria-pressed="true"]:hover { color: var(--copper-bright); }

/* ============ buttons ============ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  white-space: nowrap;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  border-radius: 10px;
  padding: 0.8rem 1.5rem;
  transition: transform 0.25s var(--ease-out), box-shadow 0.25s ease,
    background-color 0.25s ease, border-color 0.25s ease, color 0.25s ease;
}
.btn-primary {
  background: var(--copper);
  color: var(--bg);
}
.btn-primary:hover {
  background: var(--copper-bright);
  transform: translateY(-2px);
  box-shadow: 0 10px 32px rgba(226, 154, 92, 0.32);
}
.btn-ghost {
  border: 1px solid var(--line);
  color: var(--paper);
}
.btn-ghost:hover {
  border-color: rgba(226, 154, 92, 0.55);
  color: var(--copper-bright);
  transform: translateY(-2px);
}
.btn-small {
  padding: 0.5rem 1.05rem;
  font-size: 0.86rem;
  border-radius: 8px;
  background: var(--copper);
  color: var(--bg);
}
.btn-small:hover {
  background: var(--copper-bright);
  transform: translateY(-1px);
}

/* ============ hero ============ */

.hero {
  padding-top: clamp(140px, 22vh, 210px);
  padding-bottom: clamp(4rem, 9vh, 6rem);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.12fr 0.88fr;
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: center;
}

.eyebrow {
  font-size: 0.85rem;
  color: var(--copper);
  letter-spacing: 0.01em;
  margin-bottom: 1.3rem;
}

.hero-h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.7rem, 5.6vw, 4.4rem);
  line-height: 1.04;
  letter-spacing: -0.025em;
  text-wrap: balance;
}

.grad-text {
  background: var(--grad);
  background-size: 200% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: grad-shift 7s ease-in-out infinite alternate;
}
@keyframes grad-shift {
  from { background-position: 0% 50%; }
  to   { background-position: 100% 50%; }
}

.lede {
  color: var(--muted);
  font-size: 1.12rem;
  max-width: 560px;
  margin-top: 1.5rem;
}

.hero-status {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  margin-top: 1.7rem;
  padding: 0.5rem 1rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 0.8rem;
  color: var(--muted);
}
.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--live);
  animation: dot-ripple 2.4s ease-out infinite;
}
@keyframes dot-ripple {
  0%   { box-shadow: 0 0 0 0 rgba(126, 217, 162, 0.5); }
  70%  { box-shadow: 0 0 0 9px rgba(126, 217, 162, 0); }
  100% { box-shadow: 0 0 0 0 rgba(126, 217, 162, 0); }
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-top: 2.1rem;
}

/* the drawn logo — signature element */
.hero-mark { position: relative; }
.hero-mark svg {
  width: 100%;
  max-width: 460px;
  margin-inline: auto;
  color: rgba(243, 242, 237, 0.5);
  filter: drop-shadow(0 0 24px rgba(143, 163, 232, 0.12));
  animation: floaty 7.5s ease-in-out infinite;
}
@keyframes floaty {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-9px); }
}
.mark-pulse { opacity: 0; }
.mark-node {
  transform-box: fill-box;
  transform-origin: center;
  animation: node-pulse 2.6s ease-in-out infinite;
  filter: drop-shadow(0 0 7px rgba(226, 154, 92, 0.75));
}
@keyframes node-pulse {
  0%, 100% { transform: scale(1); }
  50%      { transform: scale(1.25); }
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  margin-top: clamp(3.5rem, 9vh, 5.5rem);
  padding-top: 2.2rem;
  border-top: 1px solid var(--line);
}
.stat-num {
  display: block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.9rem;
  letter-spacing: -0.02em;
}
.stat-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--muted-2);
  margin-top: 0.35rem;
  letter-spacing: 0.02em;
}

/* ============ marquee ============ */

.marquee {
  border-block: 1px solid var(--line);
  padding-block: 1.1rem;
  overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent, black 12%, black 88%, transparent);
  mask-image: linear-gradient(90deg, transparent, black 12%, black 88%, transparent);
}
.marquee-track {
  display: flex;
  width: max-content;
  animation: marquee 42s linear infinite;
}
.marquee:hover .marquee-track { animation-play-state: paused; }
.marquee-track span {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--muted-2);
  white-space: nowrap;
  position: relative;
  padding-right: 3.2rem;
}
.marquee-track span::after {
  content: "";
  position: absolute;
  right: 1.45rem;
  top: 50%;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--copper);
  opacity: 0.45;
  transform: translateY(-50%);
}
@keyframes marquee {
  to { transform: translateX(-50%); }
}

/* ============ sections ============ */

.section { padding-block: clamp(5rem, 12vh, 8rem); }

.anno {
  font-size: 0.88rem;
  color: var(--copper);
  margin-bottom: 1rem;
}

.section h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.9rem, 3.8vw, 2.8rem);
  letter-spacing: -0.02em;
  line-height: 1.12;
  margin-bottom: clamp(2.2rem, 5vh, 3.2rem);
  text-wrap: balance;
}

/* ============ services ============ */

.card-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.2rem;
}

.card {
  position: relative;
  overflow: hidden;
  background: linear-gradient(180deg, rgba(243, 242, 237, 0.04), rgba(243, 242, 237, 0.015));
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 1.8rem 1.5rem;
  transition: transform 0.35s var(--ease-out), border-color 0.35s ease, box-shadow 0.35s ease;
}
.card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 2px;
  background: var(--grad);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.45s var(--ease-out);
}
.card:hover {
  transform: translateY(-5px);
  border-color: rgba(226, 154, 92, 0.4);
  box-shadow: 0 16px 44px rgba(0, 0, 0, 0.35);
}
.card:hover::before { transform: scaleX(1); }

.card-icon {
  width: 34px;
  height: 34px;
  color: var(--copper);
  margin-bottom: 1.1rem;
}
.card h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.14rem;
  letter-spacing: -0.01em;
  margin-bottom: 0.55rem;
}
.card p {
  font-size: 0.93rem;
  color: var(--muted);
}

/* ============ experience / timeline ============ */

.timeline {
  list-style: none;
  position: relative;
  padding-left: 40px;
  max-width: 760px;
}
.timeline::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: linear-gradient(180deg,
    var(--copper),
    rgba(243, 242, 237, 0.14) 22%,
    rgba(243, 242, 237, 0.14) 90%,
    transparent);
}

.entry {
  position: relative;
  padding-bottom: 3.2rem;
}
.entry:last-child { padding-bottom: 0; }
.entry::before {
  content: "";
  position: absolute;
  left: -37px;
  top: 7px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  border: 2px solid var(--copper);
  background: var(--bg);
}
.entry.current::before {
  background: var(--copper);
  animation: dot-ripple-copper 2.4s ease-out infinite;
}
@keyframes dot-ripple-copper {
  0%   { box-shadow: 0 0 0 0 rgba(226, 154, 92, 0.45); }
  70%  { box-shadow: 0 0 0 10px rgba(226, 154, 92, 0); }
  100% { box-shadow: 0 0 0 0 rgba(226, 154, 92, 0); }
}

.t-meta {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  flex-wrap: wrap;
}
.t-year {
  font-size: 0.84rem;
  color: var(--copper);
}
.t-chip {
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--live);
  border: 1px solid rgba(126, 217, 162, 0.45);
  background: rgba(126, 217, 162, 0.08);
  border-radius: 999px;
  padding: 0.14rem 0.6rem;
}

.entry h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.28rem;
  letter-spacing: -0.015em;
  margin-top: 0.5rem;
}
.t-co {
  color: var(--peri);
  font-weight: 600;
  font-size: 0.98rem;
  margin-top: 0.1rem;
}
.t-desc {
  color: var(--muted);
  font-size: 0.95rem;
  max-width: 620px;
  margin-top: 0.65rem;
}
.t-tech {
  font-size: 0.78rem;
  color: var(--muted-2);
  margin-top: 0.7rem;
}

/* ============ stack ============ */

.stack-groups {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.6rem 3.5rem;
}
.stack-group h3 {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--peri);
  letter-spacing: 0.02em;
  margin-bottom: 1rem;
}
.chips {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}
.chips li {
  border: 1px solid var(--line);
  background: rgba(243, 242, 237, 0.03);
  border-radius: 999px;
  padding: 0.4rem 0.85rem;
  font-size: 0.87rem;
  color: var(--muted);
  transition: border-color 0.25s ease, color 0.25s ease, transform 0.25s var(--ease-out);
}
.chips li:hover {
  border-color: rgba(226, 154, 92, 0.5);
  color: var(--copper-bright);
  transform: translateY(-2px);
}

/* ============ contact ============ */

.section-contact {
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(32, 40, 60, 0.35), transparent 55%);
}
.contact-h2 {
  font-size: clamp(2.4rem, 5.2vw, 3.7rem) !important;
  margin-bottom: 1.2rem !important;
}
.section-contact .lede { margin-top: 0; }

.contact-rows {
  margin-top: 3rem;
  max-width: 780px;
  display: grid;
  gap: 1.5rem;
}
.contact-row {
  display: flex;
  align-items: baseline;
  gap: 1.5rem;
  flex-wrap: wrap;
  border-bottom: 1px solid var(--line);
  padding-bottom: 1.4rem;
}
.c-label {
  flex: 0 0 88px;
  font-size: 0.8rem;
  color: var(--copper);
}
.c-value {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.25rem, 3.2vw, 1.9rem);
  letter-spacing: -0.015em;
  color: var(--paper);
  text-decoration: none;
  background: var(--grad);
  background-repeat: no-repeat;
  background-position: left bottom;
  background-size: 0% 2px;
  padding-bottom: 4px;
  transition: background-size 0.45s var(--ease-out), color 0.3s ease;
  overflow-wrap: anywhere;
}
a.c-value:hover {
  background-size: 100% 2px;
  color: var(--copper-bright);
}
.c-plain {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 1.05rem;
  color: var(--muted);
  background: none;
}

/* ============ footer ============ */

.site-foot {
  border-top: 1px solid var(--line);
  padding-block: 3.2rem 2.4rem;
}
.foot-inner {
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
  align-items: flex-start;
}
.foot-logo { width: 168px; height: auto; opacity: 0.92; }
.foot-note { font-size: 0.78rem; color: var(--muted-2); }
.foot-copy { font-size: 0.85rem; color: var(--muted); }

/* ============ scroll reveal ============ */

.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.7s ease, transform 0.7s var(--ease-out);
}
.reveal.in-view {
  opacity: 1;
  transform: none;
}

/* ============ responsive ============ */

@media (max-width: 1000px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-mark svg { max-width: 320px; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .card-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 820px) {
  .head-nav { display: none; }
  .head-tools { margin-left: auto; }
}

@media (max-width: 700px) {
  .stack-groups { grid-template-columns: 1fr; gap: 2.2rem; }
}

@media (max-width: 480px) {
  .head-tools .btn-small { display: none; }
}

@media (max-width: 560px) {
  .hero { padding-top: 120px; }
  .card-grid { grid-template-columns: 1fr; }
  .hero-stats { gap: 1.4rem; }
  .stat-num { font-size: 1.55rem; }
  .c-label { flex-basis: 100%; }
  .contact-row { gap: 0.4rem; }
}

/* ============ reduced motion ============ */

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
  .marquee-track { animation: none; }
  .reveal { opacity: 1 !important; transform: none !important; }
  .mark-pulse { opacity: 0 !important; }
}