/* =========================================================
   Srujana Solutions Inc. — s²inc
   Design tokens: "exponential grid" system
   ========================================================= */

:root{
  /* color */
  --ink:        #0E1526;
  --ink-2:      #1A2233;
  --ink-soft:   #4B5568;
  --mist:       #EEF1F6;
  --mist-2:     #E2E6EE;
  --white:      #FFFFFF;
  --amber:      #FFB020;
  --amber-dim:  #7A5416;
  --teal:       #2FD3C7;
  --line:       rgba(14,21,38,0.10);
  --line-dark:  rgba(255,255,255,0.12);

  /* type */
  --font-display: 'Space Grotesk', 'Arial Narrow', sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'IBM Plex Mono', 'SFMono-Regular', Consolas, monospace;

  /* scale */
  --step-1: clamp(1.9rem, 6vw + 0.6rem, 3.4rem);
  --step-2: clamp(1.5rem, 4vw + 0.5rem, 2.3rem);
  --step-3: clamp(1.15rem, 2.4vw + 0.4rem, 1.5rem);

  /* layout */
  --maxw: 1180px;
  --pad: 20px;
  --radius: 14px;
  --radius-sm: 8px;

  --ease: cubic-bezier(.22,.61,.36,1);
}

*, *::before, *::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
[id]{ scroll-margin-top: 88px; }
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  *, *::before, *::after{ animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
}

body{
  margin:0;
  font-family: var(--font-body);
  color: var(--ink-2);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  line-height: 1.55;
}

img, svg{ display:block; max-width:100%; }
a{ color: inherit; text-decoration: none; }
ul{ margin:0; padding:0; list-style:none; }
button{ font-family: inherit; }

h1,h2,h3,h4{
  font-family: var(--font-display);
  color: var(--ink);
  line-height: 1.08;
  margin: 0 0 0.5em 0;
  letter-spacing: -0.01em;
}
h1{ font-size: var(--step-1); }
h2{ font-size: var(--step-2); }
h3{ font-size: 1.2rem; }
p{ margin: 0 0 1em 0; }

.container{
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 var(--pad);
}

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--amber-dim);
  background: rgba(255,176,32,0.14);
  border: 1px solid rgba(255,176,32,0.3);
  padding: 6px 12px;
  border-radius: 100px;
  margin-bottom: 16px;
}
.eyebrow::before{
  content:"";
  width:6px; height:6px; border-radius:1px;
  background: var(--amber);
}
section.on-dark .eyebrow{
  color: #FFD98A;
  background: rgba(255,176,32,0.12);
  border-color: rgba(255,176,32,0.35);
}

:focus-visible{
  outline: 2.5px solid var(--teal);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  font-family: var(--font-body);
  font-weight:600;
  font-size: 0.95rem;
  padding: 13px 24px;
  border-radius: 100px;
  border: 1.5px solid transparent;
  cursor:pointer;
  transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease), background 0.2s var(--ease), border-color .2s var(--ease);
  white-space: nowrap;
}
.btn-primary{
  background: var(--ink);
  color: var(--white);
}
.btn-primary:hover{
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(14,21,38,0.28);
}
.btn-accent{
  background: var(--amber);
  color: var(--ink);
}
.btn-accent:hover{
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(255,176,32,0.35);
}
.btn-ghost{
  background: transparent;
  color: var(--ink);
  border-color: var(--line);
}
.btn-ghost:hover{ border-color: var(--ink); }
.on-dark .btn-ghost{ color: var(--white); border-color: var(--line-dark); }
.on-dark .btn-ghost:hover{ border-color: var(--white); }
.btn-block{ width:100%; }

/* =========================================================
   HEADER
   ========================================================= */
.site-header{
  position: sticky;
  top:0;
  z-index: 100;
  background: rgba(255,255,255,0.88);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--line);
}
.header-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height: 68px;
}

.logo{
  display:flex;
  align-items:center;
  gap:10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.3rem;
  color: var(--ink);
}
.logo-mark{
  width: 34px; height:34px;
  border-radius: 8px;
  background: var(--ink);
  display:grid;
  place-items:center;
  flex-shrink:0;
}
.logo-mark svg{ width: 20px; height:20px; }
.logo-word sup{
  font-size: 0.55em;
  color: var(--amber);
  margin-left: 1px;
  top: -0.6em;
}
.logo-tag{
  display:block;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.08em;
  color: var(--ink-soft);
  font-weight: 500;
  text-transform: uppercase;
  margin-top: -2px;
}

.nav-toggle{
  display:flex;
  flex-direction:column;
  justify-content:center;
  align-items:center;
  gap:5px;
  width: 42px; height:42px;
  background: transparent;
  border: 1.5px solid var(--line);
  border-radius: 10px;
  cursor:pointer;
}
.nav-toggle span{
  width: 18px; height:2px;
  background: var(--ink);
  transition: transform .25s var(--ease), opacity .25s var(--ease);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1){ transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2){ opacity:0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3){ transform: translateY(-7px) rotate(-45deg); }

.main-nav{
  position:absolute;
  top: 68px; left:0; right:0;
  background: var(--white);
  border-bottom: 1px solid var(--line);
  max-height:0;
  overflow:hidden;
  transition: max-height .35s var(--ease);
  box-shadow: 0 12px 24px rgba(14,21,38,0.06);
}
.main-nav.is-open{ max-height: 480px; }
.main-nav ul{ padding: 8px var(--pad) 18px; }
.main-nav a{
  display:flex;
  align-items:center;
  justify-content: space-between;
  padding: 13px 4px;
  font-weight:600;
  color: var(--ink-2);
  border-bottom: 1px solid var(--line);
  font-size: 0.98rem;
}
.main-nav li:last-child a{ border-bottom:none; }
.main-nav a.active{ color: var(--ink); }
.main-nav a.active::after{
  content:"";
  width:6px;height:6px;border-radius:50%;
  background: var(--amber);
}
.nav-cta{ padding: 14px 4px 4px; }

@media (min-width: 880px){
  .nav-toggle{ display:none; }
  .main-nav{
    position:static;
    max-height:none;
    overflow:visible;
    background:transparent;
    border:none;
    box-shadow:none;
  }
  .main-nav ul{
    display:flex;
    align-items:center;
    gap: 30px;
    padding:0;
  }
  .main-nav a{
    border:none;
    padding: 6px 0;
    position:relative;
  }
  .main-nav a::before{
    content:"";
    position:absolute;
    left:0; right:0; bottom:-4px;
    height:2px;
    background: var(--amber);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform .25s var(--ease);
  }
  .main-nav a:hover::before,
  .main-nav a.active::before{ transform: scaleX(1); }
  .main-nav a.active::after{ display:none; }
  .nav-cta{ padding:0; margin-left: 4px; }
  .header-row{ display:grid; grid-template-columns: auto 1fr auto; align-items:center; gap: 24px; }
  .main-nav{ justify-self:center; }
}

/* =========================================================
   HERO / EXPONENTIAL GRID SIGNATURE
   ========================================================= */
.hero{
  position:relative;
  background: var(--ink);
  color: var(--white);
  overflow:hidden;
  padding: 56px 0 64px;
}
.hero::after{
  content:"";
  position:absolute;
  inset:0;
  background:
    radial-gradient(600px 300px at 85% 0%, rgba(47,211,199,0.16), transparent 60%),
    radial-gradient(500px 260px at 10% 100%, rgba(255,176,32,0.14), transparent 60%);
  pointer-events:none;
}
.hero-grid{
  position:relative;
  z-index:1;
  display:grid;
  gap: 40px;
}
.hero h1{ color: var(--white); }
.hero h1 sup{
  color: var(--amber);
  font-size: 0.5em;
}
.hero-sub{
  color: rgba(255,255,255,0.72);
  font-size: 1.05rem;
  max-width: 46ch;
}
.hero-ctas{
  display:flex;
  flex-wrap:wrap;
  gap: 12px;
  margin-top: 8px;
}

/* the doubling-square motif: 1, 2, 4, 8, 16 */
.expo-grid{
  position:relative;
  z-index:1;
  display:flex;
  align-items:flex-end;
  gap: clamp(6px, 1.6vw, 14px);
  height: 150px;
}
.expo-col{ display:flex; flex-direction:column-reverse; gap: 6px; flex:1; }
.expo-col span{
  display:block;
  width:100%;
  aspect-ratio: 1;
  border-radius: 4px;
  background: linear-gradient(135deg, var(--teal), rgba(47,211,199,0.35));
  opacity: 0;
  transform: scale(.4);
  animation: pop .5s var(--ease) forwards;
}
.expo-col:nth-child(5) span{ background: linear-gradient(135deg, var(--amber), rgba(255,176,32,0.4)); }
.expo-col:nth-child(1) span:nth-child(1){ animation-delay: .05s; }
.expo-col:nth-child(2) span:nth-child(1){ animation-delay: .1s; }
.expo-col:nth-child(2) span:nth-child(2){ animation-delay: .16s; }
.expo-col:nth-child(3) span{ animation-delay: .2s; }
.expo-col:nth-child(3) span:nth-child(2){ animation-delay: .26s; }
.expo-col:nth-child(3) span:nth-child(3){ animation-delay: .32s; }
.expo-col:nth-child(3) span:nth-child(4){ animation-delay: .38s; }
.expo-col:nth-child(4) span{ animation-delay: .3s; }
.expo-col:nth-child(4) span:nth-child(n+5){ animation-delay: .44s; }
.expo-col:nth-child(5) span{ animation-delay: .5s; }
@keyframes pop{ to{ opacity:1; transform:scale(1); } }
.expo-caption{
  display:flex;
  justify-content:space-between;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: rgba(255,255,255,0.45);
  margin-top: 10px;
  letter-spacing: 0.04em;
}

@media (min-width: 960px){
  .hero-grid{ grid-template-columns: 1.1fr 0.9fr; align-items:center; gap: 48px; }
  .expo-grid{ height: 220px; }
}

/* =========================================================
   STAT / TRUST BAR
   ========================================================= */
.stat-bar{
  background: var(--mist);
  border-bottom: 1px solid var(--line);
}
.stat-row{
  display:grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  padding: 28px 0;
}
.stat{ text-align:left; }
.stat-num{
  font-family: var(--font-display);
  font-size: 1.7rem;
  color: var(--ink);
  font-weight:700;
}
.stat-num sup{ color: var(--amber-dim); font-size:0.55em; }
.stat-label{
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--ink-soft);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
@media (min-width: 720px){
  .stat-row{ grid-template-columns: repeat(4, 1fr); }
}

/* =========================================================
   SECTIONS
   ========================================================= */
section{ padding: 64px 0; }
section.on-dark{ background: var(--ink); color: rgba(255,255,255,0.85); }
section.on-dark h2, section.on-dark h3{ color: var(--white); }
section.on-mist{ background: var(--mist); }
.section-head{
  max-width: 640px;
  margin-bottom: 40px;
}
.section-head p{ color: var(--ink-soft); font-size: 1.02rem; }
.on-dark .section-head p{ color: rgba(255,255,255,0.65); }

.section-head.split{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  align-items:flex-end;
  gap: 20px;
}

/* ---------- card grids ---------- */
.grid{ display:grid; gap: 20px; }
.grid-2{ grid-template-columns: 1fr; }
.grid-3{ grid-template-columns: 1fr; }
.grid-4{ grid-template-columns: 1fr; }
@media (min-width: 640px){
  .grid-2{ grid-template-columns: repeat(2, 1fr); }
  .grid-4{ grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 960px){
  .grid-3{ grid-template-columns: repeat(3, 1fr); }
  .grid-4{ grid-template-columns: repeat(4, 1fr); }
}

.card{
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 24px;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), border-color .25s var(--ease);
}
.card:hover{
  transform: translateY(-4px);
  box-shadow: 0 16px 32px rgba(14,21,38,0.09);
  border-color: rgba(14,21,38,0.16);
}
.card-icon{
  width: 44px; height:44px;
  border-radius: 10px;
  background: var(--mist);
  display:grid;
  place-items:center;
  margin-bottom: 18px;
}
.card-icon svg{ width:22px; height:22px; }
.card h3{ margin-bottom: 8px; }
.card p{ color: var(--ink-soft); font-size: 0.94rem; margin-bottom: 14px; }
.card-list{ display:flex; flex-direction:column; gap:8px; }
.card-list li{
  font-size: 0.86rem;
  color: var(--ink-soft);
  display:flex;
  gap:8px;
  align-items:flex-start;
}
.card-list li::before{
  content:"";
  width:5px; height:5px;
  margin-top:7px;
  border-radius:1px;
  background: var(--teal);
  flex-shrink:0;
}
.card-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-weight:600;
  font-size:0.88rem;
  color: var(--ink);
  margin-top: 8px;
}
.card-link svg{ width:14px; height:14px; transition: transform .2s var(--ease); }
.card:hover .card-link svg{ transform: translateX(3px); }

.card.on-ink{
  background: var(--ink-2);
  border-color: rgba(255,255,255,0.08);
}
.card.on-ink h3, .card.on-ink p{ color: rgba(255,255,255,0.9); }
.card.on-ink .card-icon{ background: rgba(255,255,255,0.08); }

/* ---------- process (real sequence: numbering makes sense) ---------- */
.process-list{ display:flex; flex-direction:column; }
.process-item{
  display:grid;
  grid-template-columns: 56px 1fr;
  gap: 18px;
  padding: 26px 0;
  border-top: 1px solid var(--line);
}
.process-item:last-child{ border-bottom: 1px solid var(--line); }
.process-num{
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--amber-dim);
  padding-top: 3px;
}
.process-item h3{ margin-bottom: 6px; }
.process-item p{ color: var(--ink-soft); margin:0; max-width: 60ch; }

/* ---------- timeline (about page, real chronology) ---------- */
.timeline{ position:relative; padding-left: 22px; border-left: 2px solid var(--line); display:flex; flex-direction:column; gap: 34px; }
.timeline-item{ position:relative; }
.timeline-item::before{
  content:"";
  position:absolute;
  left:-27.5px; top:4px;
  width:11px;height:11px;
  border-radius:50%;
  background: var(--amber);
  border: 3px solid var(--white);
  box-shadow: 0 0 0 2px var(--line);
}
.timeline-year{
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--ink-soft);
  letter-spacing: 0.04em;
}

/* ---------- values ---------- */
.value-item{ padding: 22px 0; border-top: 1px solid var(--line); display:grid; grid-template-columns: 1fr; gap:6px; }
.value-item:last-child{ border-bottom: 1px solid var(--line); }
@media (min-width: 720px){
  .value-item{ grid-template-columns: 220px 1fr; gap: 24px; align-items:baseline; }
}

/* ---------- quote / testimonial ---------- */
.quote-block{
  background: var(--mist);
  border-radius: var(--radius);
  padding: 34px 26px;
  position:relative;
}
.quote-block blockquote{
  font-family: var(--font-display);
  font-size: 1.25rem;
  color: var(--ink);
  margin: 0 0 18px 0;
  line-height:1.4;
}
.quote-person{ font-weight:700; font-size:0.9rem; }
.quote-role{ font-family: var(--font-mono); font-size: 0.75rem; color: var(--ink-soft); }

/* ---------- CTA banner ---------- */
.cta-banner{
  background: var(--ink);
  border-radius: 20px;
  padding: 44px 26px;
  text-align:left;
  position:relative;
  overflow:hidden;
}
.cta-banner::before{
  content:"";
  position:absolute; inset:0;
  background: radial-gradient(420px 220px at 90% 10%, rgba(255,176,32,0.18), transparent 60%);
}
.cta-banner *{ position:relative; z-index:1; }
.cta-banner h2{ color:var(--white); margin-bottom: 10px; }
.cta-banner p{ color: rgba(255,255,255,0.68); max-width: 52ch; }
.cta-actions{ display:flex; flex-wrap:wrap; gap: 12px; margin-top: 18px; }

/* ---------- case studies (work page) ---------- */
.case-card{
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0;
  overflow:hidden;
  display:flex;
  flex-direction:column;
}
.case-top{
  background: var(--ink);
  color:var(--white);
  padding: 26px 24px;
}
.case-top .eyebrow{ margin-bottom:10px; }
.case-metrics{
  display:grid;
  grid-template-columns: repeat(3,1fr);
  border-top:1px solid var(--line);
}
.case-metric{ padding: 18px 14px; text-align:center; border-right:1px solid var(--line); }
.case-metric:last-child{ border-right:none; }
.case-metric-num{ font-family: var(--font-display); font-weight:700; font-size:1.3rem; color: var(--ink); }
.case-metric-label{ font-family: var(--font-mono); font-size:0.62rem; color:var(--ink-soft); text-transform:uppercase; }
.case-body{ padding: 22px 24px 26px; flex:1; }
.case-body h4{ font-family: var(--font-mono); font-size:0.72rem; text-transform:uppercase; letter-spacing:0.05em; color: var(--ink-soft); margin: 14px 0 6px; }
.case-body h4:first-child{ margin-top:0; }
.case-body p{ font-size:0.92rem; color: var(--ink-soft); margin-bottom: 4px; }

/* ---------- FAQ (contact page) ---------- */
.faq-item{ border-top: 1px solid var(--line); }
.faq-item:last-child{ border-bottom: 1px solid var(--line); }
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 16px;
  padding: 20px 2px;
  background:none;
  border:none;
  text-align:left;
  font-family: var(--font-display);
  font-size: 1rem;
  color: var(--ink);
  cursor:pointer;
}
.faq-q svg{ flex-shrink:0; width:18px; height:18px; transition: transform .25s var(--ease); }
.faq-item[data-open="true"] .faq-q svg{ transform: rotate(45deg); }
.faq-a{
  max-height:0;
  overflow:hidden;
  transition: max-height .3s var(--ease);
}
.faq-a p{ color: var(--ink-soft); padding: 0 2px 20px; margin:0; font-size:0.94rem; }

/* ---------- forms ---------- */
.form-card{
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px 24px;
}
.form-row{ display:flex; flex-direction:column; gap:6px; margin-bottom: 18px; }
.form-row.two{ display:grid; grid-template-columns: 1fr; gap: 18px; }
@media (min-width: 640px){
  .form-row.two{ grid-template-columns: 1fr 1fr; }
}
label{
  font-size: 0.82rem;
  font-weight:600;
  color: var(--ink);
}
input, select, textarea{
  font-family: var(--font-body);
  font-size: 0.96rem;
  padding: 13px 14px;
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--line);
  background: var(--white);
  color: var(--ink-2);
  width:100%;
  transition: border-color .2s var(--ease);
}
input:focus, select:focus, textarea:focus{ border-color: var(--ink); outline: none; }
textarea{ resize: vertical; min-height: 120px; }
.form-note{ font-size:0.78rem; color: var(--ink-soft); margin-top: 14px; }
.form-success{
  display:none;
  background: rgba(47,211,199,0.14);
  border: 1px solid rgba(47,211,199,0.4);
  color: #0E6E66;
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  margin-bottom: 18px;
}
.form-success.is-visible{ display:block; }
.form-error{
  display:none;
  background: rgba(214,69,69,0.1);
  border: 1px solid rgba(214,69,69,0.35);
  color: #B23A3A;
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  margin-bottom: 18px;
}
.form-error.is-visible{ display:block; }
.hp-field{
  position: absolute;
  left: -9999px;
  top: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}
.btn:disabled{ opacity: 0.7; cursor: not-allowed; }

/* ---------- office / contact info ---------- */
.info-row{
  display:flex;
  gap: 14px;
  padding: 18px 0;
  border-top: 1px solid var(--line);
}
.info-row:last-child{ border-bottom: 1px solid var(--line); }
.info-icon{
  width: 38px; height:38px;
  border-radius: 9px;
  background: var(--mist);
  display:grid;
  place-items:center;
  flex-shrink:0;
}
.info-icon svg{ width:18px;height:18px; }
.info-row h4{ font-family: var(--font-body); font-weight:700; font-size:0.92rem; margin:0 0 2px; color: var(--ink); }
.info-row p{ margin:0; font-size:0.88rem; color: var(--ink-soft); }

/* ---------- badges / logos strip ---------- */
.logo-strip{
  display:flex;
  flex-wrap:wrap;
  gap: 14px 28px;
  align-items:center;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.05em;
  color: var(--ink-soft);
  text-transform:uppercase;
}
.logo-strip span{ opacity: .8; }

/* =========================================================
   PAGE HEADER (inner pages)
   ========================================================= */
.page-hero{
  background: var(--ink);
  color: var(--white);
  padding: 48px 0 40px;
  position:relative;
  overflow:hidden;
}
.page-hero::after{
  content:"";
  position:absolute; inset:0;
  background: radial-gradient(500px 260px at 90% 0%, rgba(47,211,199,0.16), transparent 60%);
  pointer-events:none;
}
.page-hero *{ position:relative; z-index:1; }
.page-hero h1{ color: var(--white); }
.page-hero .hero-sub{ margin-top: 10px; }
.breadcrumb{
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: rgba(255,255,255,0.5);
  letter-spacing: 0.04em;
  margin-bottom: 14px;
}
.breadcrumb a{ color: rgba(255,255,255,0.75); }
.breadcrumb a:hover{ color: var(--white); }

/* =========================================================
   FOOTER
   ========================================================= */
.site-footer{
  background: var(--ink);
  color: rgba(255,255,255,0.6);
  padding: 56px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns: 1fr;
  gap: 36px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--line-dark);
}
@media (min-width: 720px){
  .footer-grid{ grid-template-columns: 1.3fr 1fr 1fr 1fr; gap: 24px; }
}
.footer-brand .logo{ color: var(--white); margin-bottom: 12px; }
.footer-brand .logo-mark{ background: rgba(255,255,255,0.1); }
.footer-brand p{ font-size: 0.88rem; max-width: 34ch; color: rgba(255,255,255,0.55); }
.footer-social{ display:flex; gap:10px; margin-top: 16px; }
.footer-social a{
  width:36px; height:36px;
  border-radius: 9px;
  border: 1px solid var(--line-dark);
  display:grid; place-items:center;
  transition: border-color .2s var(--ease), background .2s var(--ease);
}
.footer-social a:hover{ border-color: var(--teal); background: rgba(47,211,199,0.08); }
.footer-social svg{ width:16px; height:16px; }

.footer-col h5{
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(255,255,255,0.9);
  margin: 0 0 16px;
}
.footer-col ul{ display:flex; flex-direction:column; gap: 11px; }
.footer-col a{ font-size: 0.88rem; transition: color .2s var(--ease); }
.footer-col a:hover{ color: var(--white); }

.footer-bottom{
  display:flex;
  flex-direction:column;
  gap: 10px;
  padding: 22px 0 30px;
  font-size: 0.78rem;
  color: rgba(255,255,255,0.45);
}
@media (min-width: 720px){
  .footer-bottom{ flex-direction:row; justify-content:space-between; align-items:center; }
}
.footer-bottom a{ color: rgba(255,255,255,0.6); }
.footer-legal{ display:flex; gap: 18px; flex-wrap:wrap; }

/* utility */
.mt-0{ margin-top:0; }
.text-center{ text-align:center; margin-left:auto; margin-right:auto; }
.hide-mobile{ display:none; }
@media (min-width: 720px){ .hide-mobile{ display:initial; } }