/* ─────────────────────────────────────────
   博思智策 — Apple-style Design System
   ───────────────────────────────────────── */

:root {
  --white:   #ffffff;
  --bg:      #fbfbfd;
  --bg2:     #f5f5f7;
  --line:    #d2d2d7;
  --text:    #1d1d1f;
  --sub:     #6e6e73;
  --faint:   #a1a1a6;
  --accent:  #0071e3;
  --accent2: #00a8cc;
  --radius:  18px;
  --radius-sm: 10px;
}

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

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  background: var(--white);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display",
               "Noto Sans TC", "PingFang TC", sans-serif;
  font-size: 17px;
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* ── SCROLLBAR ── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg2); }
::-webkit-scrollbar-thumb { background: var(--line); border-radius: 3px; }

/* ─────────────────── NAV ─────────────────── */
#nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 500;
  height: 48px;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 22px;
  background: rgba(255,255,255,.85);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid rgba(0,0,0,.08);
  transition: background .3s;
}

.nav-brand {
  display: flex; align-items: center; gap: 8px;
  text-decoration: none;
}
.nav-hex {
  width: 28px; height: 28px;
  background: linear-gradient(135deg, var(--accent2), var(--accent));
  clip-path: polygon(50% 0%,100% 25%,100% 75%,50% 100%,0% 75%,0% 25%);
  display: flex; align-items: center; justify-content: center;
  font-size: .7rem; font-weight: 700; color: #fff;
}
.nav-brand-name {
  font-size: .82rem; font-weight: 600; letter-spacing: -.01em;
  color: var(--text);
}

.nav-links {
  display: flex; gap: 28px; list-style: none;
  position: absolute; left: 50%; transform: translateX(-50%);
}
.nav-links a {
  color: var(--text); text-decoration: none;
  font-size: .76rem; letter-spacing: -.01em;
  opacity: .8; transition: opacity .2s;
}
.nav-links a:hover { opacity: 1; }

.nav-right { display: flex; align-items: center; gap: 8px; }
.nav-cta {
  display: inline-flex; align-items: center;
  background: var(--accent); color: #fff;
  padding: 6px 16px; border-radius: 980px;
  font-size: .76rem; font-weight: 500;
  text-decoration: none;
  transition: background .2s, transform .15s;
}
.nav-cta:hover { background: #0077ed; transform: scale(1.02); }

/* ─────────────────── HERO ─────────────────── */
#hero {
  min-height: 100svh;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  text-align: center;
  padding: 96px 24px 80px;
  position: relative; overflow: hidden;
  background: var(--white);
}

.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: .76rem; font-weight: 500; letter-spacing: .04em;
  text-transform: uppercase; color: var(--accent2);
  margin-bottom: 20px;
  animation: fadeUp .8s ease both;
}
.hero-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent2);
  animation: pulse 2s infinite;
}
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:.3} }

.hero-title {
  font-size: clamp(3rem, 7vw, 6rem);
  font-weight: 700;
  letter-spacing: -.03em;
  line-height: 1.05;
  margin-bottom: 20px;
  animation: fadeUp .8s .1s ease both;
  max-width: 820px;
}
.hero-title .accent {
  background: linear-gradient(135deg, var(--accent2), var(--accent));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}

.hero-sub {
  font-size: clamp(.95rem, 1.8vw, 1.3rem);
  color: var(--sub);
  max-width: 560px;
  line-height: 1.6;
  margin-bottom: 36px;
  font-weight: 400;
  animation: fadeUp .8s .18s ease both;
}

.hero-cta-group {
  display: flex; align-items: center; gap: 14px; flex-wrap: wrap;
  justify-content: center;
  animation: fadeUp .8s .26s ease both;
}
.btn-primary {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--accent); color: #fff;
  padding: 14px 28px; border-radius: 980px;
  font-size: .9rem; font-weight: 500;
  text-decoration: none; border: none; cursor: pointer;
  transition: background .2s, transform .15s, box-shadow .2s;
  box-shadow: 0 4px 20px rgba(0,113,227,.3);
}
.btn-primary:hover { background: #0077ed; transform: translateY(-2px); box-shadow: 0 8px 28px rgba(0,113,227,.4); }

.btn-secondary {
  display: inline-flex; align-items: center; gap: 4px;
  color: var(--accent); font-size: .9rem; font-weight: 500;
  text-decoration: none; padding: 14px 4px;
  transition: opacity .2s;
}
.btn-secondary:hover { opacity: .7; }
.btn-arrow { transition: transform .2s; }
.btn-secondary:hover .btn-arrow { transform: translateX(3px); }

/* Hero image */
.hero-img-band {
  width: 100%; max-width: 1100px;
  margin-top: 60px;
  border-radius: var(--radius);
  overflow: hidden;
  position: relative;
  box-shadow: 0 40px 80px rgba(0,0,0,.12);
  animation: fadeUp .9s .34s ease both;
}
.hero-img-band img {
  width: 100%; display: block;
  aspect-ratio: 21/9; object-fit: cover;
}
.hero-img-band::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(0deg, rgba(0,0,0,.06) 0%, transparent 60%);
  pointer-events: none;
}

/* Hero stats bar */
.hero-stats {
  display: flex; gap: 48px; margin-top: 56px; flex-wrap: wrap;
  justify-content: center;
  animation: fadeUp .8s .42s ease both;
}
.stat { text-align: center; }
.stat-n {
  font-size: 2.4rem; font-weight: 700;
  letter-spacing: -.03em; line-height: 1;
  background: linear-gradient(135deg, var(--accent2), var(--accent));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
.stat-l { font-size: .76rem; color: var(--sub); margin-top: 4px; }

/* Hero BG decoration */
.hero-bg-orb {
  position: absolute; border-radius: 50%; pointer-events: none;
  filter: blur(80px);
}
.orb1 { width: 600px; height: 400px; top: -100px; right: -150px; background: rgba(0,168,204,.05); }
.orb2 { width: 400px; height: 400px; bottom: -100px; left: -100px; background: rgba(0,113,227,.04); }

@keyframes fadeUp { from{opacity:0;transform:translateY(28px)} to{opacity:1;transform:translateY(0)} }

/* ─────────────────── SECTION COMMONS ─────────────────── */
section { padding: 100px 24px; }

.section-inner { max-width: 1080px; margin: 0 auto; }

.eyebrow {
  font-size: .76rem; font-weight: 600; letter-spacing: .08em;
  text-transform: uppercase; color: var(--accent2);
  margin-bottom: 12px;
}
.section-title {
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 700; letter-spacing: -.03em;
  line-height: 1.08; color: var(--text);
}
.section-title .accent { color: var(--accent); }
.section-desc {
  color: var(--sub); margin-top: 16px;
  font-size: 1.05rem; max-width: 560px; line-height: 1.65;
}
.sh-center { text-align: center; }
.sh-center .section-desc { margin-left: auto; margin-right: auto; }

/* ─────────────────── ABOUT ─────────────────── */
#about { background: var(--bg2); }

.about-layout {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 64px; align-items: start;
  max-width: 1080px; margin: 0 auto;
}

.about-img {
  border-radius: var(--radius); overflow: hidden;
  box-shadow: 0 20px 60px rgba(0,0,0,.1);
  aspect-ratio: 4/3;
}
.about-img img { width: 100%; height: 100%; object-fit: cover; display: block; }

.about-info-block { padding-top: 8px; }

.info-table { margin-top: 28px; }
.irow {
  display: flex; gap: 16px; padding: 14px 0;
  border-bottom: 1px solid var(--line);
}
.irow:first-child { border-top: 1px solid var(--line); }
.ilabel { font-size: .8rem; color: var(--faint); min-width: 80px; padding-top: 2px; }
.ival { font-size: .9rem; color: var(--sub); flex: 1; }

.iso-badges { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 24px; }
.iso-badge {
  background: var(--white); border: 1px solid var(--line);
  border-radius: 6px; padding: 5px 12px;
  font-size: .72rem; font-weight: 600; color: var(--text);
  letter-spacing: .02em;
}

/* Values grid below image */
.val-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 20px; }
.vc {
  background: var(--white); border-radius: var(--radius-sm);
  padding: 18px; border: 1px solid var(--line);
  transition: box-shadow .25s, transform .25s;
}
.vc:hover { box-shadow: 0 8px 24px rgba(0,0,0,.08); transform: translateY(-2px); }
.vt { font-size: .82rem; font-weight: 600; color: var(--text); margin-bottom: 4px; }
.vd { font-size: .76rem; color: var(--sub); line-height: 1.55; }

/* ─────────────────── TECH ─────────────────── */
#tech { background: var(--white); }

.tech-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 16px; margin-top: 56px;
}
.tc {
  background: var(--bg2); border-radius: var(--radius);
  padding: 28px; border: 1px solid transparent;
  transition: border-color .25s, box-shadow .25s, transform .25s;
}
.tc:hover {
  border-color: var(--line);
  box-shadow: 0 12px 32px rgba(0,0,0,.07);
  transform: translateY(-4px);
}
.tc-icon {
  width: 44px; height: 44px; border-radius: 10px;
  background: var(--white); border: 1px solid var(--line);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 16px;
}
.tc-icon svg { width: 22px; height: 22px; }
.tc h3 { font-size: .95rem; font-weight: 600; color: var(--text); margin-bottom: 6px; }
.tc p { font-size: .82rem; color: var(--sub); line-height: 1.55; }
.tc-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 14px; }
.tag {
  background: var(--white); border: 1px solid var(--line);
  border-radius: 4px; padding: 3px 8px;
  font-size: .68rem; color: var(--sub); letter-spacing: .02em;
}

/* ─────────────────── SERVICES ─────────────────── */
#services { background: var(--bg2); }

.svc-grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 16px; margin-top: 56px;
}
.svc-card {
  background: var(--white); border-radius: var(--radius);
  padding: 28px 24px; border: 1px solid var(--line);
  transition: box-shadow .25s, transform .25s;
}
.svc-card:hover { box-shadow: 0 16px 40px rgba(0,0,0,.08); transform: translateY(-4px); }
.svc-icon-wrap { margin-bottom: 16px; }
.svc-icon-wrap svg { width: 36px; height: 36px; display: block; }
.svc-num {
  font-size: 2.8rem; font-weight: 700; letter-spacing: -.04em;
  color: var(--line); line-height: 1; margin-bottom: 10px;
}
.svc-name { font-size: .95rem; font-weight: 600; color: var(--text); margin-bottom: 4px; }
.svc-en { font-size: .72rem; color: var(--faint); margin-bottom: 10px; letter-spacing: .02em; }
.svc-desc { font-size: .82rem; color: var(--sub); line-height: 1.65; }

/* ─────────────────── CASES ─────────────────── */
#cases { background: var(--white); }

.cases-header {
  display: flex; align-items: flex-end; justify-content: space-between;
  margin-bottom: 40px; flex-wrap: wrap; gap: 16px;
}
.cases-pager-top {
  display: flex; align-items: center; gap: 8px;
}
.pager-btn {
  width: 36px; height: 36px; border-radius: 50%;
  border: 1px solid var(--line); background: var(--white);
  color: var(--text); font-size: .9rem;
  cursor: pointer; display: flex; align-items: center; justify-content: center;
  transition: background .2s, border-color .2s;
}
.pager-btn:hover:not(:disabled) { background: var(--bg2); border-color: var(--sub); }
.pager-btn:disabled { opacity: .3; cursor: default; }
.pager-count { font-size: .8rem; color: var(--sub); min-width: 52px; text-align: center; }

.cases-page { display: none; }
.cases-page.active { display: grid; grid-template-columns: repeat(3,1fr); gap: 16px; }

.cc {
  background: var(--white); border-radius: var(--radius);
  overflow: hidden; border: 1px solid var(--line);
  transition: box-shadow .25s, transform .25s;
}
.cc:hover { box-shadow: 0 16px 48px rgba(0,0,0,.1); transform: translateY(-4px); }
.cc-img {
  width: 100%; aspect-ratio: 16/9;
  object-fit: cover; display: block;
}
.cc-body { padding: 20px 20px 22px; }
.cc-domain {
  font-size: .68rem; font-weight: 600; letter-spacing: .08em;
  text-transform: uppercase; color: var(--accent2); margin-bottom: 6px;
}
.cc-title { font-size: .95rem; font-weight: 600; color: var(--text); margin-bottom: 8px; }
.cc-desc { font-size: .8rem; color: var(--sub); line-height: 1.6; }
.cc-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 12px; }
.cc-tag {
  background: var(--bg2); border-radius: 4px;
  padding: 3px 8px; font-size: .66rem; color: var(--sub);
}

/* ─────────────────── PROCESS ─────────────────── */
#process { background: var(--bg2); }

.process-steps {
  display: grid; grid-template-columns: repeat(5,1fr);
  gap: 0; margin-top: 56px; position: relative;
}
.process-steps::before {
  content: '';
  position: absolute; top: 24px; left: 10%; right: 10%; height: 1px;
  background: linear-gradient(90deg, transparent, var(--line), transparent);
}
.step { text-align: center; padding: 0 12px; }
.step-num {
  width: 48px; height: 48px; border-radius: 50%;
  border: 1px solid var(--line); background: var(--white);
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 14px;
  font-size: .9rem; font-weight: 600; color: var(--text);
  position: relative; z-index: 1;
  transition: background .25s, border-color .25s, box-shadow .25s;
}
.step:hover .step-num {
  background: var(--accent); color: #fff;
  border-color: var(--accent);
  box-shadow: 0 4px 16px rgba(0,113,227,.3);
}
.step-title { font-size: .84rem; font-weight: 600; color: var(--text); margin-bottom: 4px; }
.step-desc { font-size: .74rem; color: var(--sub); line-height: 1.55; }

/* ─────────────────── CONTACT ─────────────────── */
#contact { background: var(--white); }

.contact-layout {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 80px; align-items: start;
  max-width: 1080px; margin: 0 auto;
}
.contact-card {
  background: var(--bg2); border-radius: var(--radius);
  overflow: hidden;
}
.contact-card-img {
  width: 100%; aspect-ratio: 16/10; object-fit: cover; display: block;
}
.contact-card-body { padding: 32px; }
.contact-card-title {
  font-size: 1.3rem; font-weight: 600; letter-spacing: -.02em;
  margin-bottom: 20px; color: var(--text);
}
.ci {
  display: flex; align-items: flex-start; gap: 12px;
  padding: 12px 0; border-bottom: 1px solid var(--line);
}
.ci:last-child { border: none; }
.ci-icon {
  width: 36px; height: 36px; border-radius: 8px;
  background: var(--white); border: 1px solid var(--line);
  display: flex; align-items: center; justify-content: center;
  font-size: .85rem; flex-shrink: 0;
}
.ci-label { font-size: .72rem; color: var(--faint); margin-bottom: 2px; }
.ci-val { font-size: .88rem; color: var(--sub); }
.ci-val a { color: var(--accent); text-decoration: none; }
.ci-val a:hover { text-decoration: underline; }

/* Right: tagline block */
.contact-tagline { padding-top: 16px; }
.contact-tagline .section-title { font-size: clamp(1.8rem,3.5vw,2.8rem); }
.contact-tagline .section-desc { font-size: .95rem; margin-top: 14px; }
.contact-cta { margin-top: 32px; }

/* ─────────────────── FOOTER ─────────────────── */
footer {
  background: var(--bg2);
  border-top: 1px solid var(--line);
  padding: 40px 44px;
}
.footer-inner {
  max-width: 1080px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 16px;
}
.footer-brand { font-size: .84rem; font-weight: 600; color: var(--text); }
.footer-brand span { color: var(--accent2); }
.footer-tag { font-size: .74rem; color: var(--faint); letter-spacing: .06em; }
.footer-copy { font-size: .74rem; color: var(--faint); }

/* ─────────────────── REVEAL ─────────────────── */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .65s ease, transform .65s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ─────────────────── RESPONSIVE ─────────────────── */
@media (max-width: 960px) {
  .nav-links { display: none; }
  .about-layout { grid-template-columns: 1fr; gap: 36px; }
  .tech-grid { grid-template-columns: 1fr 1fr; }
  .svc-grid { grid-template-columns: 1fr 1fr; }
  .cases-page.active { grid-template-columns: 1fr 1fr; }
  .process-steps { grid-template-columns: 1fr 1fr; gap: 24px; }
  .process-steps::before { display: none; }
  .contact-layout { grid-template-columns: 1fr; gap: 40px; }
}

@media (max-width: 600px) {
  section { padding: 72px 20px; }
  .tech-grid, .svc-grid { grid-template-columns: 1fr; }
  .cases-page.active { grid-template-columns: 1fr; }
  .val-grid { grid-template-columns: 1fr; }
  .hero-stats { gap: 28px; }
  .hero-title { letter-spacing: -.02em; }
}

/* ─────────────────── TOOLCHAIN ─────────────────── */
#toolchain { background: var(--bg2); }

.tool-groups {
  display: grid; grid-template-columns: repeat(4,1fr);
  gap: 16px; margin-top: 56px;
}
.tool-group {
  background: var(--white); border-radius: var(--radius);
  padding: 24px 20px; border: 1px solid var(--line);
}
.tool-group-title {
  font-size: .72rem; font-weight: 600; letter-spacing: .08em;
  text-transform: uppercase; color: var(--accent2); margin-bottom: 14px;
}
.tool-list { display: flex; flex-wrap: wrap; gap: 8px; }
.tool-chip {
  background: var(--bg2); border: 1px solid var(--line);
  border-radius: 6px; padding: 5px 10px;
  font-size: .75rem; color: var(--sub); font-weight: 500;
}

/* ─────────────────── SECURITY ─────────────────── */
#security { background: var(--white); }

.security-grid {
  display: grid; grid-template-columns: repeat(4,1fr);
  gap: 16px; margin-top: 56px;
}
.sec-card {
  background: var(--bg2); border-radius: var(--radius);
  padding: 28px 22px; border: 1px solid var(--line);
  transition: box-shadow .25s, transform .25s;
}
.sec-card:hover { box-shadow: 0 12px 32px rgba(0,0,0,.07); transform: translateY(-3px); }
.sec-icon {
  width: 44px; height: 44px; border-radius: 10px;
  background: var(--white); border: 1px solid var(--line);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem; margin-bottom: 16px;
}
.sec-title { font-size: .95rem; font-weight: 600; color: var(--text); margin-bottom: 6px; }
.sec-desc { font-size: .8rem; color: var(--sub); line-height: 1.65; }

/* ISO badge group */
.iso-group {
  display: flex; flex-wrap: wrap; gap: 10px; margin-top: 40px;
  justify-content: center;
}
.iso-card {
  background: var(--white); border: 1px solid var(--line);
  border-radius: var(--radius-sm); padding: 14px 22px;
  text-align: center;
}
.iso-card-name { font-size: 1rem; font-weight: 700; color: var(--text); letter-spacing: -.01em; }
.iso-card-desc { font-size: .72rem; color: var(--sub); margin-top: 3px; }

/* ─────────────────── PARTNERS ─────────────────── */
#partners { background: var(--bg2); }

.partner-intro { text-align: center; margin-bottom: 48px; }
.partner-categories {
  display: grid; grid-template-columns: repeat(5,1fr);
  gap: 12px; margin-top: 40px;
}
.pcat {
  background: var(--white); border: 1px solid var(--line);
  border-radius: var(--radius-sm); padding: 18px 14px;
  text-align: center; transition: box-shadow .25s, transform .25s;
}
.pcat:hover { box-shadow: 0 8px 24px rgba(0,0,0,.07); transform: translateY(-2px); }
.pcat-icon { font-size: 1.6rem; margin-bottom: 8px; }
.pcat-name { font-size: .8rem; font-weight: 600; color: var(--text); margin-bottom: 4px; }
.pcat-count { font-size: .72rem; color: var(--sub); }

/* ─────────────────── ROADMAP ─────────────────── */
#roadmap { background: var(--white); }

.roadmap-track {
  position: relative; margin-top: 64px;
  padding-left: 32px;
}
.roadmap-track::before {
  content: ''; position: absolute; left: 8px; top: 0; bottom: 0;
  width: 1px; background: linear-gradient(180deg, var(--accent) 0%, var(--line) 100%);
}
.rm-item {
  position: relative; padding: 0 0 52px 40px;
}
.rm-item:last-child { padding-bottom: 0; }
.rm-dot {
  position: absolute; left: -32px; top: 4px;
  width: 18px; height: 18px; border-radius: 50%;
  border: 2px solid var(--white);
  background: var(--accent);
  box-shadow: 0 0 0 3px rgba(0,113,227,.15);
}
.rm-item:not(:first-child) .rm-dot { background: var(--line); box-shadow: none; }
.rm-period {
  font-size: .72rem; font-weight: 600; letter-spacing: .08em;
  text-transform: uppercase; color: var(--accent2); margin-bottom: 6px;
}
.rm-item:not(:first-child) .rm-period { color: var(--faint); }
.rm-title { font-size: 1.2rem; font-weight: 700; letter-spacing: -.02em; color: var(--text); margin-bottom: 8px; }
.rm-item:not(:first-child) .rm-title { color: var(--sub); }
.rm-desc { font-size: .88rem; color: var(--sub); line-height: 1.7; max-width: 560px; }
.rm-tags { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 12px; }
.rm-tag {
  background: rgba(0,113,227,.08); border: 1px solid rgba(0,113,227,.18);
  border-radius: 4px; padding: 3px 9px;
  font-size: .7rem; color: var(--accent); font-weight: 500;
}

/* ─────────────────── PROCESS DELIVERABLES ─────────────────── */
.deliver-grid {
  display: grid; grid-template-columns: repeat(3,1fr);
  gap: 12px; margin-top: 48px;
}
.dv {
  background: var(--white); border: 1px solid var(--line);
  border-radius: var(--radius-sm); padding: 20px;
}
.dv-num { font-size: .7rem; font-weight: 700; color: var(--accent2); margin-bottom: 6px; letter-spacing: .06em; }
.dv-title { font-size: .88rem; font-weight: 600; color: var(--text); margin-bottom: 4px; }
.dv-desc { font-size: .76rem; color: var(--sub); line-height: 1.55; }

/* ─────────────────── RESPONSIVE additions ─────────────────── */
@media (max-width: 960px) {
  .tool-groups { grid-template-columns: 1fr 1fr; }
  .security-grid { grid-template-columns: 1fr 1fr; }
  .partner-categories { grid-template-columns: repeat(3,1fr); }
  .deliver-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px) {
  .tool-groups, .security-grid { grid-template-columns: 1fr; }
  .partner-categories { grid-template-columns: 1fr 1fr; }
  .deliver-grid { grid-template-columns: 1fr; }
}

/* roadmap 2-col responsive */
@media (max-width: 960px) {
  #roadmap .section-inner > div { grid-template-columns: 1fr !important; gap: 36px; }
}

/* ─────────────────── LOGO IMAGE ─────────────────── */
.nav-logo-img {
  height: 36px;
  width: auto;
  display: block;
  object-fit: contain;
}
.nav-hex { display: none; }
.nav-brand-name { display: none; }

.footer-logo-img {
  height: 26px;
  width: auto;
  display: block;
  object-fit: contain;
  opacity: .7;
  transition: opacity .2s;
}
.footer-logo-img:hover { opacity: 1; }

/* ─────────────────── LOGO SVG sizing ─────────────────── */
.nav-logo-img {
  height: 44px !important;
  width: auto;
}
.footer-logo-img {
  height: 36px !important;
  width: auto;
}

/* ─────────────────── FOOTER SOCIAL ─────────────────── */
.footer-social-link {
  display: inline-flex; align-items: center; gap: 6px;
  color: var(--sub); text-decoration: none;
  font-size: .8rem; font-weight: 500;
  padding: 6px 12px; border-radius: 6px;
  border: 1px solid var(--line);
  transition: color .2s, border-color .2s, background .2s;
}
.footer-social-link:hover {
  color: #1877f2;
  border-color: #1877f2;
  background: rgba(24,119,242,.05);
}

.ci-icon svg { display: block; }