/* ==========================================================================
   CISAICO — CIS Servicios, Automatización y Control
   Design system: "Blueprint Industrial" — dark schematic hero/CTA sections
   on white/light content sections, teal accent pulled from the brand mark.
   ========================================================================== */

@import url('assets/fonts/fonts.css');

:root{
  /* palette */
  --ink: #0e1517;
  --ink-2: #131c1f;
  --ink-3: #1a2528;
  --line-on-ink: rgba(233,242,242,0.12);
  --line-on-ink-soft: rgba(233,242,242,0.06);

  --paper: #ffffff;
  --paper-2: #f4f7f7;
  --paper-3: #eaf0f0;
  --line-on-paper: rgba(14,21,23,0.10);

  /* brand colors — Pantone 19-4524 (Shaded Spruce) + Pantone Orange 021 C */
  --teal: #00585e;
  --teal-light: #64a3a8;
  --teal-dark: #003b3f;
  --teal-glow: rgba(0,88,94,0.4);

  --orange: #fe5000;
  --orange-dark: #cc4000;

  --text-on-ink: #eef4f4;
  --text-on-ink-muted: rgba(238,244,244,0.66);
  --text-on-paper: #131c1e;
  --text-on-paper-muted: rgba(19,28,30,0.62);

  /* type — Michroma is the brand display typeface. Inter carries body copy since
     Michroma is a display-only face not meant for long-form reading. */
  --font-display: 'Michroma', 'Space Grotesk', 'Segoe UI', Arial, sans-serif;
  --font-body: 'Inter', 'Segoe UI', Arial, sans-serif;
  --font-mono: 'Michroma', 'Space Grotesk', ui-monospace, Consolas, monospace;

  /* rhythm */
  --container: 1240px;
  --pad: clamp(20px, 5vw, 64px);
  --section-pad: clamp(56px, 7vw, 104px);
  --radius: 4px;
  --ease: cubic-bezier(.16,.84,.24,1);
}

*, *::before, *::after{ box-sizing: border-box; }
html{
  scroll-behavior: smooth;
  scrollbar-color: var(--teal) var(--paper-2);
  overflow-x: hidden;
  width: 100%;
}
html, body{ margin:0; padding:0; }
body{
  background: var(--paper);
  color: var(--text-on-paper);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
ul{ margin:0; padding:0; list-style:none; }
button{ font-family:inherit; cursor:pointer; }
h1,h2,h3,h4{ font-family: var(--font-display); margin:0; font-weight:400; letter-spacing:0; overflow-wrap:break-word; }
p{ margin:0; text-align:justify; text-align-last:left; overflow-wrap:break-word; }
section{ position:relative; }

.container{
  width:100%;
  max-width: var(--container);
  margin-inline:auto;
  padding-inline: var(--pad);
}

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

/* focus visibility for keyboard users */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible{
  outline: 2px solid var(--teal);
  outline-offset: 3px;
}

/* ==========================================================================
   Reveal defensive CSS — never let content stay invisible if JS is stale
   ========================================================================== */
.reveal{ opacity:1; transform:none; }
.reveal[data-split]{ opacity:1; transform:none; }
.js-ready .reveal{ opacity:0; transform: translateY(28px); }
.js-ready .reveal.is-visible{ opacity:1; transform:none; transition: opacity .9s var(--ease), transform .9s var(--ease); }
.js-ready .reveal.d1{ transition-delay:.08s; }
.js-ready .reveal.d2{ transition-delay:.16s; }
.js-ready .reveal.d3{ transition-delay:.24s; }
.js-ready .reveal.d4{ transition-delay:.32s; }

/* ==========================================================================
   Eyebrow / index labels — schematic numbering motif
   ========================================================================== */
.eyebrow{
  display:flex; align-items:center; gap:10px;
  font-family: var(--font-mono); font-size:12.5px; letter-spacing:.16em;
  text-transform:uppercase; font-weight:600; color: var(--teal);
  margin-bottom:18px;
}
.eyebrow::before{
  content:''; width:24px; height:1px; background: var(--teal);
}
.on-ink .eyebrow{ color: var(--teal-light); }

.section-head{ max-width: 640px; margin-bottom: clamp(40px,6vw,72px); }
.section-head h2{ font-size: clamp(30px, 4vw, 46px); line-height:1.12; }
.section-head .lede{ margin-top:16px; font-size:17px; color: var(--text-on-paper-muted); max-width:52ch; }
.on-ink .section-head .lede{ color: var(--text-on-ink-muted); }

/* ==========================================================================
   Header
   ========================================================================== */
.site-header{
  position:fixed; inset:0 0 auto 0; z-index:100;
  padding: 18px 0;
  transition: background-color .4s var(--ease), padding .4s var(--ease), border-color .4s var(--ease);
  border-bottom: 1px solid transparent;
}
.site-header .container{ display:flex; align-items:center; justify-content:space-between; gap:24px; }
.site-header.is-scrolled{
  background: rgba(14,21,23,0.86);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  padding: 12px 0;
  border-bottom-color: var(--line-on-ink);
}
.brand{ display:flex; align-items:center; gap:16px; }
.brand img{
  height:104px; width:auto; padding:4px; background: var(--paper);
  border-radius:10px; border:1px solid var(--teal-light);
  box-shadow: 0 10px 28px -8px var(--teal-glow);
}
.brand-word{ display:flex; flex-direction:column; line-height:1.05; }
.brand-word strong{ font-family:var(--font-display); font-size:22px; font-weight:400; color:var(--text-on-ink); letter-spacing:.02em; }
.brand-word span{ font-family:var(--font-mono); font-size:11px; letter-spacing:.14em; color: var(--teal-light); text-transform:uppercase; margin-top:5px; }

.main-nav{ display:flex; align-items:center; gap:2px; }
.main-nav a{
  font-size:13.5px; font-weight:500; color: var(--text-on-ink-muted);
  padding:10px 14px; border-radius: 999px; transition: color .25s, background-color .25s;
  text-align:center; white-space:nowrap;
}
.main-nav a:hover{ color: var(--text-on-ink); background: var(--line-on-ink-soft); }

.header-actions{ display:flex; align-items:center; gap:14px; }
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  font-family: var(--font-body); font-size:13.5px; font-weight:600;
  padding: 12px 22px; border-radius: 999px; border:1px solid transparent;
  transition: transform .35s var(--ease), background-color .3s, border-color .3s, color .3s, box-shadow .3s;
  white-space:nowrap;
}
.btn-primary{ background: var(--teal); color:#08151a; }
.btn-primary:hover{ background: var(--teal-light); transform: translateY(-2px); box-shadow: 0 10px 24px -8px var(--teal-glow); }
.btn-ghost-ink{ border-color: var(--line-on-ink); color: var(--text-on-ink); }
.btn-ghost-ink:hover{ border-color: var(--teal-light); color:#fff; transform: translateY(-2px); }
.btn-ghost-paper{ border-color: var(--line-on-paper); color: var(--text-on-paper); }
.btn-ghost-paper:hover{ border-color: var(--teal); color: var(--teal-dark); transform: translateY(-2px); }
.btn-block{ width:100%; }
.btn-sm{ padding:9px 16px; font-size:12.5px; }

.icon-btn{
  display:flex; align-items:center; justify-content:center; flex-shrink:0;
  width:42px; height:42px; border-radius:50%;
  border:1px solid var(--line-on-ink); color: var(--text-on-ink);
  transition: border-color .25s, color .25s, transform .35s var(--ease), background-color .3s;
}
.icon-btn:hover{ border-color:#25D366; color:#25D366; background: rgba(37,211,102,0.08); transform: translateY(-2px); }

.nav-toggle{
  display:none; width:42px; height:42px; border-radius:50%;
  border:1px solid var(--line-on-ink); background:transparent;
  position:relative; flex-shrink:0;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after{
  content:''; position:absolute; left:12px; right:12px; height:1.5px; background: var(--text-on-ink);
  transition: transform .3s var(--ease), opacity .3s var(--ease);
}
.nav-toggle span{ top:50%; transform: translateY(-50%); }
.nav-toggle span::before{ top:-7px; }
.nav-toggle span::after{ top:7px; }
.nav-toggle.is-open span{ background: transparent; }
.nav-toggle.is-open span::before{ top:0; transform: rotate(45deg); }
.nav-toggle.is-open span::after{ top:0; transform: rotate(-45deg); }

/* ==========================================================================
   Hero
   ========================================================================== */
.hero{
  position:relative;
  min-height: 100vh;
  display:flex; align-items:center;
  background: radial-gradient(120% 90% at 82% 8%, #16333a 0%, var(--ink-2) 46%, var(--ink) 100%);
  color: var(--text-on-ink);
  overflow:hidden;
  padding-top: 165px;
  padding-bottom: 64px;
}
.hero-grid-canvas{ position:absolute; inset:0; width:100%; height:100%; opacity:.55; }
.hero::after{
  content:'';
  position:absolute; inset:0;
  background: linear-gradient(180deg, transparent 55%, var(--ink) 100%);
  pointer-events:none;
}
.hero .container{ position:relative; z-index:2; display:grid; grid-template-columns: 1.3fr .7fr; gap:56px; align-items:start; }
.hero-copy, .hero-panel{ min-width:0; }

.hero-copy .eyebrow{ color: var(--teal-light); }
.hero-copy h1{
  font-size: clamp(30px, 5vw, 62px);
  line-height:1.04;
  letter-spacing:0;
  max-width: 15ch;
}
.hero-copy h1 em{ font-style:normal; color: var(--teal-light); }
.hero-copy .sub{
  margin-top:26px; font-size:18px; color: var(--text-on-ink-muted); max-width:46ch;
}
.hero-tags{
  display:flex; flex-wrap:wrap; gap:10px 22px; margin-top:28px;
  font-family: var(--font-mono); font-size:11.5px; letter-spacing:.1em; text-transform:uppercase;
  color: var(--text-on-ink-muted);
}
.hero-tags span{ display:flex; align-items:center; gap:8px; }
.hero-tags span::before{ content:''; width:5px; height:5px; border-radius:50%; background: var(--teal); }
.hero-cta{ display:flex; gap:14px; margin-top:40px; flex-wrap:wrap; }

.hero-panel{
  border:1px solid var(--line-on-ink);
  background: rgba(238,244,244,0.03);
  backdrop-filter: blur(6px);
  border-radius: 6px;
  padding: 28px 26px;
}
.hero-panel-head{ display:flex; justify-content:space-between; align-items:center; margin-bottom:22px; }
.hero-panel-head span{ font-family:var(--font-mono); font-size:11px; letter-spacing:.12em; text-transform:uppercase; color:var(--text-on-ink-muted); }
.hero-stat-grid{ display:grid; grid-template-columns:1fr 1fr; gap:22px 18px; }
.hero-stat b{
  display:block; font-family:var(--font-display); font-size: clamp(26px,3vw,34px);
  color:#fff; font-weight:400; line-height:1;
}
.hero-stat span{ display:block; margin-top:8px; font-size:12.5px; color: var(--text-on-ink-muted); line-height:1.4; }

.scroll-cue{
  position:absolute; left:50%; bottom:26px; transform:translateX(-50%);
  display:flex; flex-direction:column; align-items:center; gap:10px;
  font-family: var(--font-mono); font-size:10.5px; letter-spacing:.16em; text-transform:uppercase;
  color: var(--text-on-ink-muted); z-index:3;
}
.scroll-cue .line{ width:1px; height:34px; background: linear-gradient(var(--teal-light), transparent); position:relative; overflow:hidden; }
.scroll-cue .line::after{
  content:''; position:absolute; top:-34px; left:0; width:100%; height:34px; background: linear-gradient(#fff, transparent);
  animation: scrollcue 2.2s ease-in-out infinite;
}
@keyframes scrollcue{ to{ top:34px; } }

/* ==========================================================================
   Marquee strip (clients / trust)
   ========================================================================== */
.marquee-strip{
  background: var(--ink); border-top:1px solid var(--line-on-ink); border-bottom:1px solid var(--line-on-ink);
  padding: 22px 0; overflow:hidden;
}
.marquee-track{ display:flex; width:max-content; gap:64px; animation: marquee 34s linear infinite; }
.marquee-strip:hover .marquee-track{ animation-play-state: paused; }
.marquee-track img{
  height:44px; width:auto; padding:9px 18px; background: var(--paper);
  border-radius:6px; border:1px solid var(--line-on-ink);
  filter: grayscale(1); opacity:.72; transition: opacity .3s, filter .3s, border-color .3s;
}
.marquee-track img:hover{ opacity:1; filter:none; border-color: var(--teal); }
@keyframes marquee{ from{ transform:translateX(0); } to{ transform:translateX(-50%); } }

/* ==========================================================================
   Generic section skins
   ========================================================================== */
.section{ padding-block: var(--section-pad); }
.on-ink{ background: var(--ink); color: var(--text-on-ink); }
.on-paper{ background: var(--paper); color: var(--text-on-paper); }
.on-paper-2{ background: var(--paper-2); color: var(--text-on-paper); }

.bp-corners{ position:relative; }
.bp-corners::before, .bp-corners::after{
  content:''; position:absolute; width:14px; height:14px; border: 1.5px solid var(--teal); opacity:.55;
}
.bp-corners::before{ top:-1px; left:-1px; border-right:none; border-bottom:none; }
.bp-corners::after{ bottom:-1px; right:-1px; border-left:none; border-top:none; }

/* ==========================================================================
   About / Quiénes somos
   ========================================================================== */
.about{ display:grid; grid-template-columns: .95fr 1.05fr; gap:64px; align-items:start; }
.about > *{ min-width:0; }
.about-visual{ position:sticky; top:110px; }
.about-frame{
  position:relative; border-radius:6px; overflow:hidden; border:1px solid var(--line-on-paper);
  aspect-ratio: 4/5; background: var(--ink);
}
.about-frame img{ width:100%; height:100%; object-fit:cover; opacity:.92; }
.about-frame .tag{
  position:absolute; left:18px; bottom:18px; background: rgba(14,21,23,0.78);
  color:#fff; font-family:var(--font-mono); font-size:11px; letter-spacing:.08em; text-transform:uppercase;
  padding:9px 13px; border-radius:4px; border:1px solid var(--line-on-ink);
}
.about-badge{
  position:absolute; top:18px; right:18px; background: var(--teal); color:#08151a;
  width:78px; height:78px; border-radius:50%; display:flex; flex-direction:column; align-items:center; justify-content:center;
  text-align:center; font-family:var(--font-display); box-shadow:0 14px 30px -10px rgba(0,0,0,.5);
}
.about-badge b{ font-size:19px; line-height:1; font-weight:400; }
.about-badge span{ font-size:8px; letter-spacing:.06em; text-transform:uppercase; margin-top:3px; }

.about-body p{ font-size:16.5px; color: var(--text-on-paper-muted); max-width:56ch; }
.about-body p + p{ margin-top:16px; }
.about-list{ margin-top:34px; display:grid; grid-template-columns:1fr 1fr; gap:14px 22px; }
.about-list li{
  display:flex; gap:12px; align-items:flex-start; font-size:14.5px; color: var(--text-on-paper);
  padding:14px 0; border-top:1px solid var(--line-on-paper);
}
.about-list li:nth-last-child(-n+2){ border-bottom:1px solid var(--line-on-paper); }
.about-list b{
  font-family:var(--font-mono); color: var(--teal-dark); font-size:12px; flex-shrink:0; padding-top:2px;
}

/* ==========================================================================
   Services
   ========================================================================== */
.services-grid{ display:grid; grid-template-columns: repeat(3, 1fr); gap:1px; background: var(--line-on-paper); border:1px solid var(--line-on-paper); }
.service-card{
  background: var(--paper); padding: 34px 28px; position:relative; overflow:hidden;
  transition: background-color .4s var(--ease);
  min-height: 232px; display:flex; flex-direction:column;
}
.service-card:hover{ background: var(--paper-2); }
.service-card .idx{
  font-family: var(--font-mono); font-size:12px; color: var(--orange); letter-spacing:.08em;
}
.service-card h3{ font-size:19px; margin-top:16px; line-height:1.28; }
.service-card p{ margin-top:12px; font-size:14px; color: var(--text-on-paper-muted); line-height:1.55; }
.service-card .icon{
  position:absolute; right:-14px; bottom:-14px; width:92px; height:92px; opacity:.06;
  transition: opacity .4s, transform .5s var(--ease);
}
.service-card:hover .icon{ opacity:.14; transform: scale(1.08) rotate(4deg); }

/* Manufactura strip */
.manu-wrap{ margin-top: 88px; display:grid; grid-template-columns: .8fr 1.2fr; gap:56px; align-items:center; }
.manu-wrap > *{ min-width:0; }
.manu-copy h3{ font-size: clamp(24px,3vw,32px); line-height:1.2; }
.manu-copy p{ margin-top:14px; color: var(--text-on-paper-muted); font-size:15.5px; max-width:44ch; }
.manu-list{ margin-top:24px; display:flex; flex-direction:column; gap:12px; }
.manu-list li{ display:flex; gap:10px; font-size:14.5px; align-items:flex-start; }
.manu-list li::before{ content:'—'; color: var(--teal); flex-shrink:0; font-weight:700; }
.manu-gallery{ display:grid; grid-template-columns: repeat(4,1fr); gap:12px; }
.manu-gallery a{ display:block; border-radius:4px; overflow:hidden; aspect-ratio:1; position:relative; }
.manu-gallery img{ width:100%; height:100%; object-fit:cover; transition: transform .6s var(--ease); }
.manu-gallery a:hover img{ transform: scale(1.08); }
.manu-gallery a:nth-child(1){ grid-row: span 2; aspect-ratio: 1/2.08; }

/* ==========================================================================
   Sectores (client logos)
   ========================================================================== */
.sector-groups{ display:flex; flex-direction:column; gap:0; }
.sector-group{ padding-block:28px; border-top:1px solid var(--line-on-ink); display:grid; grid-template-columns: 240px 1fr; gap:32px; align-items:center; }
.sector-groups .sector-group:last-child{ border-bottom:1px solid var(--line-on-ink); }
.sector-group h4{ font-size:16px; color:#fff; display:flex; align-items:center; gap:10px; }
.sector-group h4 span{ font-family:var(--font-mono); font-size:11px; color: var(--teal-light); }
.sector-logos{ display:flex; flex-wrap:wrap; gap:14px; align-items:center; }
.sector-logos img{
  height:36px; width:auto; max-width:128px; object-fit:contain;
  padding:11px 18px; background: var(--paper); border-radius:6px; border:1px solid var(--line-on-ink);
  filter: grayscale(1); opacity:.8; transition: opacity .3s, filter .3s, transform .3s, border-color .3s;
}
.sector-logos img:hover{ opacity:1; filter:none; transform: translateY(-2px); border-color: var(--teal); }

/* ==========================================================================
   Casos de éxito
   ========================================================================== */
.cases-rail{
  display:flex; gap:22px; overflow-x:auto; padding-bottom:24px; scroll-snap-type:x proximity;
  margin-inline: calc(var(--pad) * -1); padding-inline: var(--pad);
  scrollbar-width: thin;
}
.case-card{
  flex: 0 0 min(84vw, 380px); scroll-snap-align:start;
  border:1px solid var(--line-on-paper); border-radius:6px; overflow:hidden; background:#fff;
  display:flex; flex-direction:column;
}
.case-media{ position:relative; aspect-ratio:4/3; overflow:hidden; background:var(--ink); }
.case-media img{ width:100%; height:100%; object-fit:cover; transition: transform .7s var(--ease); }
.case-card:hover .case-media img{ transform: scale(1.06); }
.case-tag{
  position:absolute; top:12px; left:12px; background: rgba(14,21,23,0.82); color:#fff;
  font-family:var(--font-mono); font-size:10.5px; letter-spacing:.08em; text-transform:uppercase;
  padding:6px 10px; border-radius:3px;
}
.case-body{ padding:22px 22px 24px; flex:1; display:flex; flex-direction:column; }
.case-idx{ font-family:var(--font-mono); font-size:11.5px; color: var(--orange-dark); letter-spacing:.08em; }
.case-body h3{ font-size:18px; margin-top:10px; line-height:1.28; }
.case-loc{ margin-top:8px; font-size:12.5px; color: var(--text-on-paper-muted); display:flex; align-items:center; gap:6px; }
.case-body p{ margin-top:12px; font-size:13.8px; color: var(--text-on-paper-muted); line-height:1.55; flex:1; }
.case-tech{ margin-top:16px; padding-top:14px; border-top:1px solid var(--line-on-paper); display:flex; align-items:center; gap:10px; }
.case-tech span{ font-family:var(--font-mono); font-size:10px; text-transform:uppercase; letter-spacing:.08em; color: var(--text-on-paper-muted); }
.case-tech img{ height:16px; width:auto; opacity:.75; }

/* Before/after comparison slider */
.compare{
  position:relative; aspect-ratio:4/3; overflow:hidden; border-radius:4px; cursor: ew-resize;
  touch-action:none; user-select:none; background:var(--ink);
}
.compare img{ position:absolute; inset:0; width:100%; height:100%; object-fit:cover; pointer-events:none; }
.compare .after-wrap{ position:absolute; inset:0; width:50%; overflow:hidden; }
.compare .after-wrap img{ width: var(--compare-w, 200%); max-width:none; height:100%; }
.compare .handle{
  position:absolute; top:0; bottom:0; left:50%; width:2px; background:#fff; transform:translateX(-1px);
  box-shadow: 0 0 0 1px rgba(0,0,0,.25);
}
.compare .handle::after{
  content:'\2194'; position:absolute; top:50%; left:50%; transform:translate(-50%,-50%);
  width:38px; height:38px; border-radius:50%; background:#fff; color:var(--ink);
  display:flex; align-items:center; justify-content:center; font-size:16px; box-shadow:0 6px 18px rgba(0,0,0,.35);
}
.compare .lbl{
  position:absolute; bottom:10px; font-family:var(--font-mono); font-size:10px; letter-spacing:.08em; text-transform:uppercase;
  color:#fff; background:rgba(14,21,23,0.7); padding:5px 9px; border-radius:3px; pointer-events:none;
}
.compare .lbl.before{ left:10px; }
.compare .lbl.after{ right:10px; }

.cases-nav{ display:flex; justify-content:flex-end; gap:10px; margin-top:8px; }
.cases-nav button{
  width:42px; height:42px; border-radius:50%; border:1px solid var(--line-on-paper); background:#fff;
  display:flex; align-items:center; justify-content:center; transition: border-color .25s, transform .25s;
}
.cases-nav button:hover{ border-color: var(--teal); transform: translateY(-2px); }

/* ==========================================================================
   Redes industriales (architecture diagram)
   ========================================================================== */
.network-wrap{ display:grid; grid-template-columns: 1fr 1.05fr; gap:64px; align-items:center; }
.network-wrap > *{ min-width:0; }
.network-copy .lede{ margin-top:16px; color: var(--text-on-ink-muted); font-size:16px; max-width:48ch; }
.protocol-tags{ display:flex; flex-wrap:wrap; gap:10px; margin-top:28px; }
.protocol-tags span{
  font-family:var(--font-mono); font-size:11.5px; letter-spacing:.05em; color: var(--text-on-ink);
  border:1px solid var(--line-on-ink); padding:8px 14px; border-radius:999px;
}

.diagram{ border:1px solid var(--line-on-ink); border-radius:8px; padding:28px; background: rgba(238,244,244,0.025); }
.diagram-level{ padding:18px 4px; position:relative; }
.diagram-level + .diagram-level{ border-top:1px dashed var(--line-on-ink); }
.diagram-level-head{ display:flex; align-items:center; justify-content:space-between; margin-bottom:14px; }
.diagram-level-head h5{ font-family:var(--font-mono); font-size:11.5px; letter-spacing:.1em; text-transform:uppercase; color: var(--teal-light); font-weight:600; }
.diagram-level-head small{ font-family:var(--font-mono); font-size:10px; color: var(--text-on-ink-muted); }
.diagram-nodes{ display:flex; flex-wrap:wrap; gap:10px; }
.node{
  display:flex; align-items:center; gap:8px; border:1px solid var(--line-on-ink); border-radius:6px;
  padding:10px 14px; font-size:12.5px; color: var(--text-on-ink); background: rgba(14,21,23,0.5);
  transition: border-color .3s, background-color .3s;
}
.node:hover{ border-color: var(--teal); background: rgba(63,146,157,0.1); }
.node .dot{ width:7px; height:7px; border-radius:50%; background: var(--teal); flex-shrink:0; }
.node.big{ padding:12px 18px; font-weight:600; }

/* ==========================================================================
   Partners
   ========================================================================== */
.partners-grid{ display:grid; grid-template-columns: repeat(4, 1fr); border:1px solid var(--line-on-paper); }
.partner-cell{
  aspect-ratio: 3/2; display:flex; align-items:center; justify-content:center; padding:24px;
  border-right:1px solid var(--line-on-paper); border-bottom:1px solid var(--line-on-paper);
  background:#fff; transition: background-color .3s;
}
.partner-cell:hover{ background: var(--paper-2); }
.partner-cell img{
  max-height:38px; max-width:100%; width:auto; object-fit:contain;
  filter:grayscale(1); opacity:.55; transition: opacity .3s, filter .3s;
}
.partner-cell:hover img{ filter:none; opacity:1; }

/* ==========================================================================
   Contact / CTA
   ========================================================================== */
.contact-wrap{ display:grid; grid-template-columns: 1fr .95fr; gap:64px; }
.contact-wrap > *{ min-width:0; }
.contact-info h2{ font-size: clamp(30px,4vw,44px); line-height:1.14; }
.contact-info .lede{ margin-top:18px; color: var(--text-on-ink-muted); font-size:16.5px; max-width:44ch; }
.contact-cards{ margin-top:36px; display:flex; flex-direction:column; gap:1px; background: var(--line-on-ink); border:1px solid var(--line-on-ink); border-radius:6px; overflow:hidden; }
.contact-card{ display:flex; align-items:center; gap:16px; padding:18px 20px; background: var(--ink); transition: background-color .3s; }
.contact-card:hover{ background: var(--ink-3); }
.contact-card .ic{
  width:42px; height:42px; border-radius:50%; border:1px solid var(--line-on-ink); flex-shrink:0;
  display:flex; align-items:center; justify-content:center; color: var(--teal-light);
}
.contact-card b{ display:block; font-size:14.5px; color:#fff; }
.contact-card span{ display:block; margin-top:2px; font-size:12.5px; color: var(--text-on-ink-muted); }

.contact-form{
  background: var(--ink-2); border:1px solid var(--line-on-ink); border-radius:8px; padding: 30px;
}
.contact-form h3{ font-size:18px; color:#fff; }
.contact-form .hint{ margin-top:8px; font-size:12.5px; color: var(--text-on-ink-muted); }
.field{ margin-top:18px; }
.field label{ display:block; font-family:var(--font-mono); font-size:10.5px; letter-spacing:.1em; text-transform:uppercase; color: var(--text-on-ink-muted); margin-bottom:8px; }
.field input, .field select, .field textarea{
  width:100%; background: rgba(238,244,244,0.04); border:1px solid var(--line-on-ink); border-radius:4px;
  padding:12px 14px; color:#fff; font-family:var(--font-body); font-size:14px; transition: border-color .25s, background-color .25s;
}
.field input:focus, .field select:focus, .field textarea:focus{ border-color: var(--teal); background: rgba(238,244,244,0.06); outline:none; }
.field textarea{ resize:vertical; min-height:96px; }
.field select option{ background: var(--ink); }
.form-actions{ margin-top:22px; display:flex; align-items:center; gap:16px; flex-wrap:wrap; }
.form-note{ font-size:11.5px; color: var(--text-on-ink-muted); }
.form-status{ margin-top:14px; font-size:13px; color: var(--teal-light); min-height:1em; }

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer{ background: var(--ink); border-top:1px solid var(--line-on-ink); padding-top: 64px; }
.footer-top{ display:grid; grid-template-columns: 1.3fr .8fr .8fr 1fr; gap:40px; padding-bottom:48px; }
.footer-brand .brand{ margin-bottom:16px; }
.footer-brand p{ font-size:14px; color: var(--text-on-ink-muted); max-width:34ch; }
.footer-col h5{ font-family:var(--font-mono); font-size:11px; letter-spacing:.1em; text-transform:uppercase; color: var(--text-on-ink-muted); margin-bottom:16px; }
.footer-col ul{ display:flex; flex-direction:column; gap:11px; }
.footer-col a{ font-size:14px; color: var(--text-on-ink); transition: color .25s; }
.footer-col a:hover{ color: var(--teal-light); }
.footer-bottom{
  border-top:1px solid var(--line-on-ink); padding:22px 0; display:flex; justify-content:space-between; align-items:center;
  flex-wrap:wrap; gap:12px; font-size:12.5px; color: var(--text-on-ink-muted);
}
.footer-bottom a{ color: var(--text-on-ink-muted); }
.footer-bottom a:hover{ color:#fff; }

.back-to-top{
  position:fixed; right:24px; bottom:24px; z-index:60;
  width:48px; height:48px; border-radius:50%; background: var(--orange); color:#1a0800;
  display:flex; align-items:center; justify-content:center; box-shadow: 0 12px 26px -8px rgba(0,0,0,.5);
  opacity:0; pointer-events:none; transform: translateY(10px);
  transition: opacity .35s var(--ease), transform .35s var(--ease);
}
.back-to-top.is-visible{ opacity:1; pointer-events:auto; transform:none; }

/* ==========================================================================
   Mobile nav drawer
   ========================================================================== */
.mobile-drawer{
  position:fixed; inset:0; z-index:99; background: var(--ink);
  display:flex; flex-direction:column; padding: 100px 28px 40px;
  transform: translateY(-100%); transition: transform .5s var(--ease), visibility 0s linear .5s;
  visibility:hidden; pointer-events:none;
}
.mobile-drawer.is-open{ transform:none; visibility:visible; pointer-events:auto; transition: transform .5s var(--ease); }
.mobile-drawer nav{ display:flex; flex-direction:column; gap:6px; }
.mobile-drawer a{ font-family:var(--font-display); font-size:25px; font-weight:400; color:#fff; padding:12px 0; border-bottom:1px solid var(--line-on-ink); }
.mobile-drawer .drawer-actions{ margin-top:auto; display:flex; flex-direction:column; gap:12px; }
.mobile-drawer .drawer-actions .btn{ white-space:normal; font-size:14.5px; padding:14px 16px; text-align:center; }

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 980px){
  .main-nav{ display:none; }
  .header-actions .btn-primary{ display:none; }
  .nav-toggle{ display:block; }

  .site-header .container{ flex-wrap:nowrap; }
  .brand{ gap:10px; min-width:0; }
  .brand img{ height:48px; padding:2px; flex-shrink:0; }
  .brand-word{ min-width:0; }
  .brand-word strong{ font-size:16px; }
  .brand-word span{ font-size:8.5px; white-space:normal; }
  .header-actions{ gap:8px; }

  .hero{ padding-top:120px; }
  .hero .container{ grid-template-columns:1fr; gap:44px; align-items:end; }
  .hero-cta{ justify-content:center; }
  .hero-panel{ margin-top:8px; }

  .about{ grid-template-columns:1fr; }
  .about-visual{ position:static; }
  .about-frame{ aspect-ratio: 16/9; }

  .services-grid{ grid-template-columns: 1fr 1fr; }
  .manu-wrap{ grid-template-columns:1fr; }
  .manu-gallery{ grid-template-columns: repeat(2,1fr); }
  .manu-gallery a:nth-child(1){ grid-row:auto; aspect-ratio:1; }

  .sector-group{ grid-template-columns:1fr; gap:14px; }

  .network-wrap{ grid-template-columns:1fr; }

  .partners-grid{ grid-template-columns: repeat(3,1fr); }

  .contact-wrap{ grid-template-columns:1fr; }

  .footer-top{ grid-template-columns:1fr 1fr; row-gap:36px; }
}

@media (max-width: 620px){
  .hero-copy h1{ font-size: clamp(22px, calc(9.2vw - 4px), 74px); max-width:none; }
  .services-grid{ grid-template-columns:1fr; }
  .partners-grid{ grid-template-columns: repeat(2,1fr); }
  .footer-top{ grid-template-columns:1fr; }
  .hero-stat-grid{ grid-template-columns:1fr 1fr; }
  .about-list{ grid-template-columns:1fr; }
  .case-card{ flex-basis: 86vw; }
}

@media (prefers-contrast: more){
  :root{ --line-on-ink: rgba(255,255,255,0.3); --line-on-paper: rgba(0,0,0,0.3); }
}