/* ============================================================
   Dinbyte Studio — style.css
   Palette: deep navy #0A2647 · accent #2C74B3 · bright white
   ============================================================ */

:root {
  --bg: #0A2647;
  --bg-deep: #071B36;
  --bg-ink: #051226;
  --panel: rgba(169, 204, 236, 0.035);
  --line: rgba(169, 204, 236, 0.14);
  --line-strong: rgba(169, 204, 236, 0.30);
  --white: #F4F8FD;
  --body: #B9CCE0;
  --ice: #A9CCEC;
  --accent: #2C74B3;
  --accent-bright: #4C93D6;
  --accent-soft: #8FC1EF;
  --serif: "Fraunces", Georgia, "Times New Roman", serif;
  --sans: "Archivo", "Segoe UI", "Helvetica Neue", sans-serif;
  --mono: "IBM Plex Mono", "Consolas", monospace;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--body);
  font: 400 17px/1.7 var(--sans);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

/* Atmosphere: soft glows + grain */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(1000px 620px at 82% -10%, rgba(44, 116, 179, 0.18), transparent 62%),
    radial-gradient(820px 520px at -12% 42%, rgba(44, 116, 179, 0.10), transparent 58%);
}
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 80;
  pointer-events: none;
  opacity: 0.05;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)'/%3E%3C/svg%3E");
}

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

a { color: inherit; }
:focus-visible { outline: 2px solid var(--accent-soft); outline-offset: 3px; border-radius: 3px; }

.container { width: min(1180px, 92%); margin-inline: auto; }

.skip-link {
  position: absolute;
  left: 16px;
  top: -60px;
  z-index: 200;
  padding: 10px 18px;
  background: var(--accent);
  color: #fff;
  font: 600 13px var(--sans);
  text-decoration: none;
  border-radius: 8px;
  transition: top 0.25s ease;
}
.skip-link:focus { top: 14px; }

/* ---------- Header ---------- */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  transition: background 0.3s ease, border-color 0.3s ease;
  border-bottom: 1px solid transparent;
}
.site-header.scrolled {
  background: rgba(5, 18, 38, 0.82);
  -webkit-backdrop-filter: blur(14px) saturate(1.3);
  backdrop-filter: blur(14px) saturate(1.3);
  border-bottom-color: var(--line);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
  gap: 24px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--white);
}
.brand-mark { flex: none; display: block; }
.brand-name {
  font: 600 15px/1 var(--sans);
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
.brand-name small {
  display: block;
  margin-top: 4px;
  font: 500 9.5px var(--mono);
  letter-spacing: 0.42em;
  color: var(--accent-soft);
}
.nav-list {
  display: flex;
  align-items: center;
  gap: 34px;
  list-style: none;
}
.nav-link {
  font: 500 13px/1 var(--sans);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--ice);
  text-decoration: none;
  padding: 10px 2px;
  transition: color 0.25s ease;
}
.nav-link:hover { color: var(--white); }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font: 600 13px/1 var(--sans);
  letter-spacing: 0.09em;
  text-transform: uppercase;
  padding: 16px 27px;
  border-radius: 10px;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease, border-color 0.25s ease, color 0.25s ease;
}
.btn .arrow { transition: transform 0.25s ease; }
.btn:hover .arrow { transform: translateX(4px); }
.btn-primary {
  background: linear-gradient(135deg, #2C74B3, #1E5C97);
  color: #fff;
  box-shadow: 0 12px 32px -14px rgba(44, 116, 179, 0.65);
}
.btn-primary:hover {
  transform: translateY(-2px);
  background: linear-gradient(135deg, #3A83C4, #2468A8);
  box-shadow: 0 18px 42px -16px rgba(44, 116, 179, 0.75);
}
.btn-ghost {
  border-color: var(--line-strong);
  color: var(--white);
}
.btn-ghost:hover {
  border-color: var(--accent-soft);
  background: rgba(44, 116, 179, 0.10);
  transform: translateY(-2px);
}
.header-cta { padding: 13px 22px; }

.nav-toggle {
  display: none;
  width: 46px;
  height: 46px;
  border: 1px solid var(--line-strong);
  border-radius: 10px;
  background: transparent;
  cursor: pointer;
  position: relative;
}
.nav-toggle span {
  position: absolute;
  left: 13px;
  right: 13px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: transform 0.3s ease, top 0.3s ease;
}
.nav-toggle span:nth-child(1) { top: 17px; }
.nav-toggle span:nth-child(2) { top: 26px; }
.nav-open .nav-toggle span:nth-child(1) { top: 21px; transform: rotate(45deg); }
.nav-open .nav-toggle span:nth-child(2) { top: 21px; transform: rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 150px 0 70px;
  overflow: hidden;
}
.hero-net {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.6;
  pointer-events: none;
  -webkit-mask-image: linear-gradient(180deg, transparent 0, #000 10%, #000 80%, transparent 100%);
  mask-image: linear-gradient(180deg, transparent 0, #000 10%, #000 80%, transparent 100%);
}
.nlink {
  stroke: rgba(143, 193, 239, 0.30);
  fill: none;
  stroke-width: 1.2;
  stroke-dasharray: 3 7;
  animation: dash 16s linear infinite;
}
@keyframes dash { to { stroke-dashoffset: -220; } }
.nnode { fill: var(--accent-soft); opacity: 0.9; }
.nring {
  fill: none;
  stroke: var(--line);
  stroke-width: 1;
  transform-box: fill-box;
  transform-origin: center;
  animation: breathe 7s ease-in-out infinite;
}
@keyframes breathe {
  0%, 100% { opacity: 0.5; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.04); }
}
.ncore {
  fill: #ECF4FC;
  transform-box: fill-box;
  transform-origin: center;
  animation: pulse 4.5s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 0.75; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.18); }
}

.hero-inner { position: relative; }
.kicker {
  display: flex;
  align-items: center;
  gap: 14px;
  font: 500 12px var(--mono);
  letter-spacing: 0.30em;
  text-transform: uppercase;
  color: var(--accent-soft);
  margin-bottom: 26px;
}
.kicker::before {
  content: "";
  width: 36px;
  height: 1px;
  background: var(--accent-bright);
  flex: none;
}
.hero h1 {
  font: 500 clamp(2.7rem, 5.6vw, 4.6rem)/1.08 var(--serif);
  letter-spacing: -0.01em;
  color: var(--white);
  max-width: 860px;
  text-wrap: balance;
}
.hero h1 em {
  font-style: italic;
  color: var(--accent-soft);
}
.hero .lead {
  margin-top: 28px;
  max-width: 705px;
  font-size: 1.11rem;
  line-height: 1.78;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 42px;
}
.hero-meta {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-top: 76px;
  padding-top: 30px;
  border-top: 1px solid var(--line);
}
.hero-meta .m-label {
  font: 500 11px var(--mono);
  letter-spacing: 0.30em;
  text-transform: uppercase;
  color: var(--accent-soft);
  margin-bottom: 8px;
}
.hero-meta .m-text { font-size: 0.93rem; }

[data-rise] {
  opacity: 0;
  transform: translateY(26px);
  animation: rise 0.9s cubic-bezier(0.22, 1, 0.36, 1) forwards;
  animation-delay: var(--d, 0s);
}
@keyframes rise { to { opacity: 1; transform: none; } }

/* ---------- Ticker ---------- */
.ticker {
  border-block: 1px solid var(--line);
  background: var(--bg-deep);
  padding: 17px 0;
  overflow: hidden;
}
.ticker-track {
  display: flex;
  width: max-content;
  animation: tickermove 42s linear infinite;
}
.ticker-group { display: flex; align-items: center; padding-right: 56px; }
.tk {
  display: flex;
  align-items: center;
  font: 400 12px var(--mono);
  letter-spacing: 0.24em;
  color: var(--ice);
  white-space: nowrap;
}
.tk::after {
  content: "◆";
  font-size: 8px;
  color: var(--accent-bright);
  margin: 0 28px;
  opacity: 0.75;
}
@keyframes tickermove { to { transform: translateX(-50%); } }

/* ---------- Sections ---------- */
.section { padding: 112px 0; }
.section-head { max-width: 780px; margin-bottom: 58px; }
.section-title {
  font: 500 clamp(2rem, 3.6vw, 2.95rem)/1.16 var(--serif);
  letter-spacing: -0.008em;
  color: var(--white);
  text-wrap: balance;
}
.section-intro {
  margin-top: 20px;
  font-size: 1.06rem;
  max-width: 660px;
}

/* ---------- About ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 5fr 7fr;
  gap: 68px;
  align-items: start;
}
.about-aside .section-head { margin-bottom: 34px; }
.about-points { list-style: none; }
.about-points li {
  display: flex;
  gap: 18px;
  align-items: baseline;
  padding: 18px 0;
  border-top: 1px solid var(--line);
  font-size: 0.98rem;
  color: var(--ice);
}
.about-points li:last-child { border-bottom: 1px solid var(--line); }
.about-points .n {
  font: 400 12px var(--mono);
  color: var(--accent-bright);
  letter-spacing: 0.1em;
  flex: none;
}
.about-copy p { margin-bottom: 22px; font-size: 1.045rem; }
.about-copy strong { color: var(--white); font-weight: 600; }
.about-quote {
  margin-top: 38px;
  padding: 34px 38px;
  border-left: 2px solid var(--accent-bright);
  border-radius: 0 16px 16px 0;
  background: linear-gradient(90deg, rgba(44, 116, 179, 0.12), transparent 72%);
}
.about-quote p {
  font: italic 500 clamp(1.45rem, 2.5vw, 1.95rem)/1.32 var(--serif);
  color: var(--white);
  margin: 0;
}
.about-quote cite {
  display: block;
  margin-top: 16px;
  font: 400 11px var(--mono);
  font-style: normal;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--ice);
}

/* ---------- Services ---------- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 22px;
}
.service-card {
  position: relative;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 38px 32px 32px;
  background: linear-gradient(180deg, rgba(169, 204, 236, 0.05), rgba(169, 204, 236, 0.012));
  overflow: hidden;
  transition: transform 0.35s ease, border-color 0.35s ease, box-shadow 0.35s ease;
}
.service-card:hover {
  transform: translateY(-6px);
  border-color: rgba(76, 147, 214, 0.45);
  box-shadow: 0 28px 64px -28px rgba(44, 116, 179, 0.45);
}
.service-num {
  position: absolute;
  top: 30px;
  right: 30px;
  font: 400 12.5px var(--mono);
  letter-spacing: 0.18em;
  color: var(--ice);
  opacity: 0.65;
}
.service-icon {
  width: 54px;
  height: 54px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  color: var(--accent-soft);
  background: rgba(44, 116, 179, 0.15);
  border: 1px solid rgba(76, 147, 214, 0.28);
  margin-bottom: 26px;
}
.service-card h3 {
  font: 500 1.42rem/1.28 var(--serif);
  color: var(--white);
  margin-bottom: 14px;
  padding-right: 34px;
}
.service-desc { font-size: 0.97rem; }
.service-list {
  list-style: none;
  margin-top: auto;
  padding-top: 24px;
  border-top: 1px dashed var(--line);
  display: grid;
  gap: 11px;
}
.service-list li {
  display: flex;
  gap: 12px;
  align-items: baseline;
  font-size: 0.9rem;
  color: var(--ice);
}
.service-list li::before {
  content: "";
  width: 5px;
  height: 5px;
  background: var(--accent-bright);
  transform: rotate(45deg);
  flex: none;
  position: relative;
  top: -1px;
}

/* ---------- Industries ---------- */
.industries {
  background: var(--bg-deep);
  border-block: 1px solid var(--line);
}
.ind-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 22px;
}
.ind-cell {
  display: flex;
  flex-direction: column;
  gap: 16px;
  min-height: 305px;
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 32px 30px 28px;
  background: var(--panel);
  transition: transform 0.35s ease, border-color 0.35s ease, box-shadow 0.35s ease;
}
.ind-cell:hover {
  transform: translateY(-5px);
  border-color: rgba(76, 147, 214, 0.45);
  box-shadow: 0 24px 58px -26px rgba(44, 116, 179, 0.42);
}
.ind-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  color: var(--accent-soft);
}
.ind-index {
  font: 400 12px var(--mono);
  letter-spacing: 0.18em;
  color: var(--ice);
  opacity: 0.65;
}
.ind-cell h3 {
  font: 500 1.28rem/1.3 var(--serif);
  color: var(--white);
}
.ind-cell p { font-size: 0.94rem; }
.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: auto;
  padding-top: 10px;
}
.chip {
  font: 500 10.5px var(--mono);
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--ice);
  border: 1px solid var(--line);
  padding: 6px 12px;
  border-radius: 999px;
  white-space: nowrap;
}
.ind-cell--cta {
  background: linear-gradient(150deg, rgba(44, 116, 179, 0.34), rgba(44, 116, 179, 0.08));
  border-color: rgba(76, 147, 214, 0.42);
  justify-content: center;
}
.ind-cell--cta h3 { font-size: 1.5rem; }
.ind-cell--cta .arrow-link {
  margin-top: 18px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font: 600 12.5px var(--sans);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--white);
  text-decoration: none;
}
.ind-cell--cta .arrow-link .arrow { transition: transform 0.25s ease; }
.ind-cell--cta .arrow-link:hover .arrow { transform: translateX(4px); }

/* ---------- Contact ---------- */
.contact {
  position: relative;
  text-align: center;
  padding: 138px 0;
  overflow: hidden;
}
.contact::before, .contact::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  border: 1px solid var(--line);
  border-radius: 50%;
  pointer-events: none;
}
.contact::before { width: 560px; height: 560px; }
.contact::after { width: 820px; height: 820px; opacity: 0.5; }
.contact .kicker { justify-content: center; }
.contact .kicker::after {
  content: "";
  width: 36px;
  height: 1px;
  background: var(--accent-bright);
  flex: none;
}
.contact-inner { position: relative; max-width: 720px; margin-inline: auto; }
.contact .section-intro { margin-inline: auto; }
.email-link {
  display: inline-block;
  position: relative;
  margin-top: 40px;
  font: 500 clamp(1.35rem, 3.4vw, 2.1rem)/1.3 var(--mono);
  color: var(--white);
  text-decoration: none;
  padding-bottom: 10px;
  word-break: break-all;
}
.email-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-bright), var(--accent-soft));
  transform: scaleX(0.32);
  transform-origin: left;
  transition: transform 0.45s cubic-bezier(0.22, 1, 0.36, 1);
}
.email-link:hover::after { transform: scaleX(1); }
.contact-note {
  margin-top: 22px;
  font: 400 12px var(--mono);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ice);
}
.contact-channels {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-top: 30px;
}
.contact-channels .fab-row {
  width: 100%;
  justify-content: center;
  text-align: center;
  border: 1px solid var(--line);
}

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--line);
  background: var(--bg-ink);
  padding-top: 68px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2.3fr 1fr 1fr 1.25fr;
  gap: 48px;
  padding-bottom: 60px;
}
.footer-brand p {
  margin-top: 20px;
  font-size: 0.95rem;
  max-width: 320px;
}
.footer-title {
  font: 500 11px var(--mono);
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--accent-soft);
  margin-bottom: 22px;
}
.footer-links { list-style: none; display: grid; gap: 12px; }
.footer-links a {
  color: var(--body);
  font-size: 0.95rem;
  text-decoration: none;
  transition: color 0.2s ease;
}
.footer-links a:hover { color: var(--white); text-decoration: underline; text-underline-offset: 4px; }
.share { display: flex; flex-wrap: wrap; gap: 12px; }
.share a {
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 11px;
  display: grid;
  place-items: center;
  color: var(--ice);
  transition: color 0.25s ease, border-color 0.25s ease, background 0.25s ease, transform 0.25s ease;
}
.share a:hover {
  color: #fff;
  border-color: var(--accent-bright);
  background: rgba(44, 116, 179, 0.16);
  transform: translateY(-3px);
}
.footer-bottom {
  border-top: 1px solid var(--line);
  padding: 24px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  font: 400 11.5px var(--mono);
  letter-spacing: 0.10em;
  color: var(--ice);
}

/* ---------- Floating contact widget ---------- */
.contact-fab {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 90;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 14px;
}
.fab-panel {
  position: absolute;
  bottom: 76px;
  right: 0;
  width: 268px;
  background: rgba(5, 18, 38, 0.97);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  border: 1px solid var(--line-strong);
  border-radius: 16px;
  padding: 18px 14px 14px;
  box-shadow: 0 30px 70px -20px rgba(2, 10, 24, 0.9);
  opacity: 0;
  transform: translateY(12px) scale(0.97);
  transform-origin: bottom right;
  pointer-events: none;
  transition: opacity 0.28s ease, transform 0.28s cubic-bezier(0.22, 1, 0.36, 1);
}
.contact-fab.open .fab-panel {
  opacity: 1;
  transform: none;
  pointer-events: auto;
}
.fab-panel-title {
  font: 500 10.5px var(--mono);
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--accent-soft);
  padding: 0 10px 12px;
}
.fab-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 9px 10px;
  border-radius: 12px;
  text-decoration: none;
  color: var(--body);
  transition: background 0.2s ease, color 0.2s ease;
}
button.fab-row {
  width: 100%;
  background: none;
  border: 0;
  font: inherit;
  text-align: left;
  cursor: pointer;
}
.fab-row:hover { background: rgba(44, 116, 179, 0.15); color: var(--white); }
.fab-ico {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  flex: none;
}
.fab-ico--wa  { background: rgba(37, 211, 102, 0.14); color: #25D366; }
.fab-ico--ms  { background: rgba(0, 132, 255, 0.15); color: #54A9FF; }
.fab-ico--li  { background: rgba(10, 102, 194, 0.18); color: #6BA8E8; }
.fab-ico--x   { background: rgba(244, 248, 253, 0.10); color: var(--white); }
.fab-ico--em  { background: rgba(44, 116, 179, 0.18); color: var(--accent-soft); }
.fab-row-text { display: flex; flex-direction: column; line-height: 1.32; }
.fab-row-text strong { color: var(--white); font: 600 0.9rem var(--sans); }
.fab-row-text small  { color: var(--ice); font-size: 0.76rem; }
.fab-btn {
  position: relative;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  border: none;
  background: linear-gradient(135deg, #2C74B3, #1E5C97);
  color: #fff;
  display: grid;
  place-items: center;
  cursor: pointer;
  box-shadow: 0 14px 36px -10px rgba(44, 116, 179, 0.75);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.fab-btn:hover {
  transform: translateY(-3px) scale(1.04);
  box-shadow: 0 20px 44px -12px rgba(44, 116, 179, 0.85);
}
.fab-btn::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 1px solid rgba(76, 147, 214, 0.65);
  animation: ping 2.6s ease-out infinite;
  pointer-events: none;
}
@keyframes ping {
  0% { transform: scale(1); opacity: 0.7; }
  70%, 100% { transform: scale(1.5); opacity: 0; }
}
.fab-btn .ico-close { display: none; }
.contact-fab.open .ico-chat { display: none; }
.contact-fab.open .ico-close { display: block; }
.contact-fab.open .fab-btn::before { animation: none; opacity: 0; }

/* ---------- Reveal on scroll ---------- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.8s ease, transform 0.8s cubic-bezier(0.22, 1, 0.36, 1);
  transition-delay: var(--d, 0s);
}
.reveal.in { opacity: 1; transform: none; }

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .nav-toggle { display: block; }
  .header-cta { display: none; }
  .site-nav {
    position: fixed;
    top: 76px;
    left: 0;
    right: 0;
    z-index: 99;
    background: rgba(5, 18, 38, 0.97);
    -webkit-backdrop-filter: blur(16px);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--line);
    padding: 12px 4vw 28px;
    opacity: 0;
    transform: translateY(-10px);
    pointer-events: none;
    transition: opacity 0.3s ease, transform 0.3s ease;
  }
  .nav-open .site-nav { opacity: 1; transform: none; pointer-events: auto; }
  .nav-list { flex-direction: column; align-items: stretch; gap: 4px; }
  .nav-link { display: block; padding: 15px 6px; font-size: 15px; border-bottom: 1px solid var(--line); }
  .about-grid { grid-template-columns: 1fr; gap: 44px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .section { padding: 86px 0; }
  .hero { padding: 128px 0 56px; }
  .hero-meta { grid-template-columns: 1fr; gap: 18px; margin-top: 56px; }
  .footer-grid { grid-template-columns: 1fr; gap: 40px; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
  .contact { padding: 104px 0; }
  .contact-channels { grid-template-columns: 1fr; }
  .btn { width: 100%; justify-content: center; }
  .hero-actions .btn { width: auto; flex: 1 1 auto; }
  .contact-fab { right: 16px; bottom: 16px; }
  .fab-panel { width: min(268px, calc(100vw - 32px)); }
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .ticker-track { animation: none; }
  [data-rise] { opacity: 1; transform: none; animation: none; }
  .reveal { opacity: 1; transform: none; }
  .fab-btn::before { animation: none; opacity: 0; }
}