/* =========================================================
   ATU SOLUTIONS — light minimal-premium
   Palette: warm paper · deep forest · brass hairline
   ========================================================= */

:root {
  --paper:      #F5F3EE;
  --paper-2:    #FBFAF7;
  --surface:    #FFFFFF;
  --ink:        #10242E;   /* near-black, petrol-tinted */
  --ink-soft:   #46545C;
  --ink-mute:   #82909A;
  --green:      #00577D;   /* ATU brand petrol blue */
  --green-2:    #014965;   /* deeper petrol (hover / small caps) */
  --brand-deep: #013B54;   /* dark petrol band */
  --brass:      #B08D57;   /* micro luxury accent */
  --line:       rgba(16, 36, 46, 0.10);
  --line-soft:  rgba(16, 36, 46, 0.06);

  /* --font-serif holds the display/heading face (Montserrat) */
  --font-serif: "Montserrat", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-sans:  "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  --container: 1180px;
  --pad: clamp(20px, 5vw, 48px);
  --radius: 14px;

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

/* ---------- reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-sans);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }

.container { width: 100%; max-width: var(--container); margin: 0 auto; padding-inline: var(--pad); }

/* ---------- typography helpers ---------- */
.eyebrow {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--green-2);
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 22px;
}
.eyebrow::before {
  content: "";
  width: 26px; height: 1px;
  background: var(--brass);
}

.section-title {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: clamp(28px, 4.2vw, 46px);
  line-height: 1.12;
  letter-spacing: -0.015em;
  color: var(--ink);
  max-width: 18ch;
}
.section-lead {
  margin-top: 20px;
  color: var(--ink-soft);
  font-size: clamp(16px, 1.4vw, 19px);
  max-width: 56ch;
}

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.01em;
  padding: 15px 26px;
  border-radius: 100px;
  transition: transform .4s var(--ease), background .3s var(--ease), color .3s var(--ease), box-shadow .4s var(--ease);
  white-space: nowrap;
}
.btn-solid {
  background: var(--green);
  color: var(--paper-2);
  box-shadow: 0 1px 2px rgba(1,59,84,.2);
}
.btn-solid:hover {
  background: var(--green-2);
  transform: translateY(-2px);
  box-shadow: 0 12px 28px -12px rgba(1,59,84,.55);
}
.btn-ghost {
  color: var(--ink);
  border: 1px solid var(--line);
  background: transparent;
}
.btn-ghost:hover { border-color: var(--green); transform: translateY(-2px); }
.btn-sm { padding: 11px 20px; font-size: 14px; }
.btn-block { width: 100%; }

/* =========================================================
   HEADER
   ========================================================= */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  transition: background .4s var(--ease), box-shadow .4s var(--ease), border-color .4s var(--ease);
  border-bottom: 1px solid transparent;
}
.site-header.scrolled {
  background: rgba(245, 243, 238, 0.82);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--line-soft);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 74px;
}
.brand { display: inline-flex; align-items: center; }
.brand-logo { height: 50px; width: auto; max-width: none; flex: none; display: block; }

.nav { display: flex; gap: 28px; margin-inline: auto; padding-inline: 24px; }
.nav a {
  font-size: 15px;
  color: var(--ink-soft);
  position: relative;
  transition: color .3s var(--ease);
}
.nav a::after {
  content: "";
  position: absolute; left: 0; bottom: -6px;
  width: 0; height: 1px; background: var(--brass);
  transition: width .35s var(--ease);
}
.nav a:hover { color: var(--ink); }
.nav a:hover::after { width: 100%; }

.header-actions { display: flex; align-items: center; gap: 18px; }
.lang-toggle {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 13px; font-weight: 500; letter-spacing: .06em;
  color: var(--ink-mute);
}
.lang-opt { transition: color .3s var(--ease); }
.lang-opt.is-active { color: var(--green); font-weight: 600; }
.lang-sep { opacity: .4; }

.menu-toggle { display: none; flex-direction: column; gap: 5px; width: 26px; }
.menu-toggle span { height: 1.6px; width: 100%; background: var(--ink); transition: transform .3s var(--ease), opacity .3s var(--ease); }

/* =========================================================
   HERO
   ========================================================= */
.hero { padding-top: 150px; padding-bottom: 40px; }
.hero-inner {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: clamp(32px, 6vw, 80px);
  align-items: center;
}
.hero-title {
  font-family: var(--font-serif);
  font-weight: 300;
  font-size: clamp(38px, 6vw, 66px);
  line-height: 1.06;
  letter-spacing: -0.02em;
  margin-bottom: 26px;
}
.hero-lead {
  color: var(--ink-soft);
  font-size: clamp(16px, 1.5vw, 19px);
  max-width: 52ch;
  margin-bottom: 34px;
}
.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; }

/* hero visual card */
.hero-visual { display: flex; justify-content: center; }
.hv-card {
  width: 100%;
  max-width: 360px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 34px 32px;
  box-shadow: 0 40px 80px -50px rgba(1,59,84,.5);
  position: relative;
  overflow: hidden;
}
.hv-card::before {
  content: "";
  position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--green), var(--brass));
  z-index: 2;
}

/* ---- animated pallet-wrapping scene ---- */
.pallet-wrap {
  position: relative;
  margin: 6px 0 20px;
  background:
    radial-gradient(120% 90% at 50% 0%, rgba(0,87,125,.06), transparent 70%);
  border-radius: 10px;
}
.pallet-scene { width: 100%; height: auto; display: block; overflow: visible; }

.ps-shadow { fill: rgba(1,59,84,.10); animation: psShadow 4s var(--ease) infinite; transform-origin: 150px 252px; }
.ps-stack { animation: psFloat 4s var(--ease) infinite; transform-origin: 150px 240px; }

.ps-pallet rect { fill: #C9BFA9; }
.ps-pallet rect:first-child { fill: #B9AE96; }

.ps-boxes rect { fill: #E8E0D0; stroke: rgba(20,32,28,.10); stroke-width: 1; }
.ps-boxes line { stroke: rgba(20,32,28,.12); stroke-width: 1; }

.ps-film-body { fill: rgba(0,87,125,.14); stroke: rgba(0,87,125,.30); stroke-width: 1; }
.ps-wrapline {
  stroke: rgba(0,87,125,.55); stroke-width: 2; stroke-linecap: round;
  fill: none; stroke-dasharray: 156; stroke-dashoffset: 156;
  animation: psWrap 4s var(--ease) infinite;
}
.ps-sheen { fill: url(#sheenGrad); animation: psSheen 3.6s var(--ease) infinite; }

@keyframes psFloat  { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-6px); } }
@keyframes psShadow { 0%,100% { transform: scaleX(1); opacity:.10; } 50% { transform: scaleX(.9); opacity:.06; } }
@keyframes psWrap   { 0% { stroke-dashoffset:156; } 45%,100% { stroke-dashoffset:0; } }
@keyframes psSheen  { 0% { transform: translateX(0); } 55%,100% { transform: translateX(340px); } }

/* floating stat chips */
.hv-chip {
  position: absolute;
  display: inline-flex; align-items: baseline; gap: 6px;
  padding: 8px 13px; border-radius: 100px;
  background: var(--surface);
  border: 1px solid var(--line);
  box-shadow: 0 12px 30px -14px rgba(1,59,84,.5);
  font-size: 12px; color: var(--ink-soft);
  animation: psFloat 4s var(--ease) infinite;
}
.hv-chip b { font-size: 15px; font-weight: 600; }
.hv-chip--cost { top: 14%; right: -6px; animation-delay: .3s; }
.hv-chip--cost b { color: var(--brass); }
.hv-chip--film { bottom: 20%; left: -8px; animation-delay: .9s; }
.hv-chip--film b { color: var(--green); }

.hv-readout { display: grid; gap: 13px; padding-top: 22px; border-top: 1px solid var(--line-soft); }
.hv-readout-row { display: flex; justify-content: space-between; align-items: baseline; font-size: 14px; }
.hv-readout-row span { color: var(--ink-mute); }
.hv-readout-row b { font-weight: 600; color: var(--ink); font-variant-numeric: tabular-nums; }

@media (prefers-reduced-motion: reduce) {
  .ps-shadow, .ps-stack, .ps-sheen, .hv-chip { animation: none; }
  .ps-wrapline { animation: none; stroke-dashoffset: 0; }
}

/* =========================================================
   INTERACTIVE PROCESS (auto-advancing stepper)
   ========================================================= */
.process {
  display: grid; grid-template-columns: 1.35fr 1fr;
  gap: clamp(30px, 5vw, 68px); align-items: center;
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: clamp(30px, 4vw, 56px);
  margin-bottom: clamp(44px, 6vw, 72px);
  box-shadow: 0 30px 70px -55px rgba(1,59,84,.4);
  overflow: hidden;
  background-image: radial-gradient(90% 120% at 100% 0%, rgba(0,87,125,.05), transparent 60%);
}
.process-stage { position: relative; min-height: 240px; }
.process-panel { display: none; }
.process-panel.is-active { display: block; animation: procIn .55s var(--ease); }
@keyframes procIn { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: none; } }
.process-ghost {
  display: block;
  font-family: var(--font-serif); font-weight: 600;
  font-size: clamp(64px, 11vw, 132px); line-height: .85;
  color: rgba(0,87,125,.13); letter-spacing: -0.03em;
  margin-bottom: 6px;
}
.process-icon { width: 40px; height: 40px; color: var(--green); margin-bottom: 16px; }
.process-icon svg { width: 100%; height: 100%; display: block; }
.process-content h3 {
  font-family: var(--font-serif); font-weight: 500;
  font-size: clamp(28px, 3.6vw, 44px); line-height: 1.05; letter-spacing: -0.01em;
  margin-bottom: 14px;
}
.process-content p { color: var(--ink-soft); font-size: clamp(15px, 1.5vw, 18px); max-width: 46ch; }

.process-nav { display: grid; gap: 10px; }
.process-step {
  display: grid; grid-template-columns: auto 1fr; align-items: center;
  gap: 6px 16px; text-align: left;
  padding: 16px 20px; border: 1px solid var(--line); border-radius: 12px;
  background: transparent; cursor: pointer;
  transition: border-color .3s var(--ease), background .3s var(--ease), transform .3s var(--ease);
}
.process-step:hover { border-color: rgba(0,87,125,.35); transform: translateX(3px); }
.process-step.is-active { border-color: var(--green); background: var(--paper-2); }
.ps-index { font-family: var(--font-serif); color: var(--brass); font-size: 15px; letter-spacing: .08em; }
.ps-label { font-weight: 500; color: var(--ink); font-size: 16.5px; }
.ps-track { grid-column: 1 / -1; height: 3px; background: var(--line); border-radius: 3px; overflow: hidden; margin-top: 6px; }
.ps-fill { display: block; height: 100%; width: 0; background: var(--green); border-radius: 3px; }
.process-step.is-active .ps-fill { animation: psFill 5s linear forwards; }
@keyframes psFill { from { width: 0; } to { width: 100%; } }

@media (prefers-reduced-motion: reduce) {
  .process-step.is-active .ps-fill { animation: none; width: 100%; }
  .process-panel.is-active { animation: none; }
}

/* trust strip */
.trust-strip {
  margin-top: 84px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  padding: 40px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.trust-item { display: flex; flex-direction: column; gap: 8px; }
.trust-num {
  font-family: var(--font-serif);
  font-size: clamp(34px, 4vw, 48px);
  font-weight: 300;
  line-height: 1;
  color: var(--ink);
  letter-spacing: -0.01em;
}
.trust-unit { font-size: .55em; vertical-align: super; color: var(--green-2); }
.trust-label { font-size: 13.5px; color: var(--ink-soft); max-width: 22ch; }

/* =========================================================
   SECTIONS
   ========================================================= */
.section { padding: clamp(72px, 11vw, 140px) 0; }
.section-alt { background: var(--paper-2); }
.section-head { margin-bottom: clamp(40px, 6vw, 68px); max-width: 760px; }

/* products */
/* product catalog */
.catalog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
.catalog-card {
  background: var(--surface);
  padding: clamp(28px, 3vw, 40px);
  transition: background .4s var(--ease);
}
.catalog-card:hover { background: var(--paper-2); }
.catalog-icon {
  width: 56px; height: 56px; border-radius: 13px;
  background: rgba(0,87,125,.07);
  display: grid; place-items: center;
  margin-bottom: 22px;
  transition: transform .5s var(--ease);
}
.catalog-card:hover .catalog-icon { transform: translateY(-3px); }
.catalog-icon .pv { width: 38px; height: 38px; display: block; }
.pv-stroke { fill: none; stroke: var(--green); stroke-width: 2.5; stroke-linecap: round; stroke-linejoin: round; }
.pv-fill { fill: rgba(0,87,125,.12); stroke: var(--green); stroke-width: 2.5; stroke-linejoin: round; }
.pv-brass { fill: var(--brass); }
.pv-brass-line { fill: none; stroke: var(--brass); stroke-width: 2.2; stroke-linecap: round; }
.catalog-card h3 {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: clamp(20px, 2.1vw, 25px);
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}
.catalog-intro { color: var(--ink-soft); font-size: 15px; margin-bottom: 20px; }
.catalog-list { display: grid; gap: 10px; }
.catalog-list li {
  position: relative; padding-left: 20px;
  font-size: 14.5px; color: var(--ink-soft);
}
.catalog-list li::before {
  content: ""; position: absolute; left: 0; top: 8px;
  width: 6px; height: 6px; border-radius: 50%; background: var(--brass);
}

/* steps */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(24px, 4vw, 48px);
  margin-bottom: clamp(56px, 8vw, 96px);
}
.step { position: relative; padding-top: 34px; border-top: 1px solid var(--line); }
.step-num {
  font-family: var(--font-serif);
  font-size: 15px; color: var(--brass); letter-spacing: .1em;
  position: absolute; top: -1px; padding-top: 12px;
}
.step h3 {
  font-family: var(--font-serif);
  font-weight: 400; font-size: clamp(22px, 2.4vw, 27px);
  margin: 14px 0 12px;
}
.step p { color: var(--ink-soft); font-size: 15.5px; }

/* pillars */
.pillars {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 1px; background: var(--line);
  border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden;
}
.pillar { background: var(--paper-2); padding: clamp(28px, 3.5vw, 40px); }
.pillar h4 {
  font-size: 13px; font-weight: 600; letter-spacing: .12em;
  text-transform: uppercase; color: var(--green-2); margin-bottom: 14px;
}
.pillar p { color: var(--ink-soft); font-size: 15.5px; }

/* results band */
.results { background: var(--brand-deep); color: var(--paper); position: relative; overflow: hidden; }
.results-watermark {
  position: absolute; right: -60px; top: 50%; transform: translateY(-50%);
  width: min(46vw, 560px); opacity: .05; pointer-events: none;
  filter: brightness(0) invert(1);
}
.results-inner {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(36px, 6vw, 76px); align-items: center;
}
.results-num {
  font-family: var(--font-serif);
  font-weight: 300;
  font-size: clamp(64px, 11vw, 128px);
  line-height: .9;
  letter-spacing: -0.03em;
  color: var(--paper);
  white-space: nowrap;
  display: block;
  margin-bottom: 22px;
}
.results-copy h2 {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: clamp(24px, 3vw, 36px);
  line-height: 1.2;
  max-width: 22ch;
  margin-bottom: 18px;
}
.results-copy p { color: rgba(246,244,239,.72); max-width: 48ch; margin-bottom: 28px; }
.results .btn-solid { background: var(--paper); color: var(--green); }
.results .btn-solid:hover { background: #fff; box-shadow: 0 12px 28px -12px rgba(0,0,0,.5); }

/* what-we-reduce card */
.reduce-card {
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.14);
  border-radius: var(--radius);
  padding: clamp(28px, 3.5vw, 40px);
  backdrop-filter: blur(2px);
}
.reduce-card h3 {
  font-size: 12px; font-weight: 600; letter-spacing: .16em; text-transform: uppercase;
  color: var(--brass); margin-bottom: 22px;
}
.reduce-list { display: grid; gap: 2px; }
.reduce-list li {
  display: flex; align-items: center; gap: 16px;
  padding: 16px 0; border-top: 1px solid rgba(255,255,255,.12);
  font-size: 16px; color: var(--paper);
}
.reduce-list li:last-child { border-bottom: 1px solid rgba(255,255,255,.12); }
.reduce-list li::before {
  content: ""; flex: none; width: 18px; height: 18px; border-radius: 50%;
  background:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23013B54' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E") center/12px no-repeat,
    var(--brass);
}

/* =========================================================
   CONTACT
   ========================================================= */
.contact-inner {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: clamp(40px, 6vw, 80px);
  align-items: start;
}
.contact-list { margin-top: 40px; display: grid; gap: 2px; }
.contact-list li {
  display: grid; grid-template-columns: 120px 1fr;
  align-items: baseline;
  gap: 16px;
  padding: 18px 0;
  border-top: 1px solid var(--line);
  font-size: 16px;
}
.contact-list li:last-child { border-bottom: 1px solid var(--line); }
.contact-key { font-size: 13px; letter-spacing: .08em; text-transform: uppercase; color: var(--ink-mute); }
.contact-list a { transition: color .3s var(--ease); }
.contact-list a:hover { color: var(--green); }

.contact-form {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: clamp(28px, 4vw, 40px);
  box-shadow: 0 40px 80px -60px rgba(1,59,84,.4);
}
.hp-field { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.field { margin-bottom: 18px; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field label {
  display: block; font-size: 13px; font-weight: 500;
  letter-spacing: .03em; color: var(--ink-soft); margin-bottom: 8px;
}
.field input, .field textarea {
  width: 100%;
  font-family: inherit; font-size: 15.5px; color: var(--ink);
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 13px 15px;
  transition: border-color .3s var(--ease), background .3s var(--ease), box-shadow .3s var(--ease);
}
.field input:focus, .field textarea:focus {
  outline: none;
  border-color: var(--green);
  background: var(--surface);
  box-shadow: 0 0 0 4px rgba(1,59,84,.07);
}
.field textarea { resize: vertical; }
.contact-form .btn { margin-top: 6px; }
.form-note { margin-top: 16px; font-size: 13.5px; color: var(--ink-mute); text-align: center; }
.form-note.is-success { color: var(--green-2); font-weight: 500; }
.form-note.is-error { color: #b0483f; }

/* =========================================================
   FOOTER
   ========================================================= */
.site-footer { background: #0A1E28; color: rgba(246,244,239,.7); padding: clamp(56px, 7vw, 84px) 0 28px; }
.footer-inner { display: grid; grid-template-columns: 1.2fr 2fr; gap: 48px; padding-bottom: 48px; }
.footer-logo { height: 46px; width: auto; display: block; margin-bottom: 18px; }
.footer-brand p { margin-top: 16px; max-width: 34ch; font-size: 14.5px; line-height: 1.6; }
.footer-cols { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.footer-col { display: flex; flex-direction: column; gap: 12px; }
.footer-col-title { font-size: 12px; letter-spacing: .14em; text-transform: uppercase; color: rgba(246,244,239,.45); margin-bottom: 6px; }
.footer-col a, .footer-col span { font-size: 14.5px; color: rgba(246,244,239,.7); transition: color .3s var(--ease); }
.footer-col a:hover { color: var(--brass); }
.footer-bottom {
  display: flex; justify-content: space-between; align-items: center;
  padding-top: 28px; border-top: 1px solid rgba(246,244,239,.12);
  font-size: 13px; color: rgba(246,244,239,.5);
}

/* =========================================================
   INDUSTRIES
   ========================================================= */
.industry-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 1px; background: var(--line);
  border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden;
}
.industry {
  background: var(--surface); padding: clamp(26px, 3vw, 38px);
  transition: background .4s var(--ease);
}
.industry:hover { background: var(--paper-2); }
.industry-icon {
  width: 34px; height: 34px; margin-bottom: 20px; color: var(--green);
}
.industry-icon svg { width: 100%; height: 100%; display: block; }
.industry h3 {
  font-family: var(--font-serif); font-weight: 400;
  font-size: clamp(19px, 2vw, 23px); margin-bottom: 10px;
}
.industry p { color: var(--ink-soft); font-size: 15px; }

/* =========================================================
   FAQ
   ========================================================= */
.faq-inner { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: clamp(32px, 5vw, 64px); align-items: start; }
.faq-list { border-top: 1px solid var(--line); }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-q {
  width: 100%; text-align: left;
  display: flex; align-items: center; justify-content: space-between; gap: 20px;
  padding: 24px 0; font-family: var(--font-sans);
  font-size: clamp(16px, 1.6vw, 18px); font-weight: 500; color: var(--ink);
}
.faq-q:hover { color: var(--green); }
.faq-icon { flex: none; position: relative; width: 16px; height: 16px; }
.faq-icon::before, .faq-icon::after {
  content: ""; position: absolute; background: var(--green); transition: transform .35s var(--ease);
}
.faq-icon::before { top: 50%; left: 0; width: 100%; height: 1.5px; transform: translateY(-50%); }
.faq-icon::after  { left: 50%; top: 0; width: 1.5px; height: 100%; transform: translateX(-50%); }
.faq-item.open .faq-icon::after { transform: translateX(-50%) scaleY(0); }
.faq-a { overflow: hidden; height: 0; transition: height .4s var(--ease); }
.faq-a-inner { padding: 0 0 26px; color: var(--ink-soft); font-size: 15.5px; max-width: 62ch; }

/* =========================================================
   SCROLL PROGRESS ("film" pull)
   ========================================================= */
.scroll-progress {
  position: fixed; top: 0; left: 0; z-index: 200;
  height: 3px; width: 0%;
  background: linear-gradient(90deg, var(--green), var(--brass));
  transition: width .1s linear;
  pointer-events: none;
}

/* =========================================================
   SAVINGS CALCULATOR
   ========================================================= */
.calc {
  display: grid; grid-template-columns: 0.9fr 1.1fr;
  gap: 1px; background: var(--line);
  border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden;
  box-shadow: 0 40px 90px -60px rgba(1,59,84,.4);
}
.calc-inputs { background: var(--surface); padding: clamp(28px, 3.5vw, 44px); }
.calc-results { background: var(--paper); padding: clamp(28px, 3.5vw, 44px); display: flex; flex-direction: column; }

.calc-field { margin-bottom: 30px; }
.calc-field label {
  display: flex; justify-content: space-between; align-items: baseline; gap: 12px;
  font-size: 14.5px; color: var(--ink-soft); margin-bottom: 14px;
}
.calc-field output {
  font-family: var(--font-serif); font-size: 20px; color: var(--green);
  font-variant-numeric: tabular-nums; white-space: nowrap;
}
.calc-disclaimer { font-size: 12.5px; line-height: 1.55; color: var(--ink-mute); margin-top: 4px; }

/* range input */
.calc-field input[type="range"] {
  -webkit-appearance: none; appearance: none;
  width: 100%; height: 4px; border-radius: 4px; cursor: pointer;
  background: var(--line); outline: none;
}
.calc-field input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none;
  width: 22px; height: 22px; border-radius: 50%;
  background: var(--green); border: 3px solid var(--surface);
  box-shadow: 0 2px 8px rgba(1,59,84,.4);
  transition: transform .15s var(--ease);
}
.calc-field input[type="range"]::-webkit-slider-thumb:hover { transform: scale(1.12); }
.calc-field input[type="range"]::-moz-range-thumb {
  width: 22px; height: 22px; border-radius: 50%;
  background: var(--green); border: 3px solid var(--surface);
  box-shadow: 0 2px 8px rgba(1,59,84,.4);
}

/* hero number */
.calc-hero { margin-bottom: 26px; }
.calc-hero-label { display: block; font-size: 12px; letter-spacing: .14em; text-transform: uppercase; color: var(--ink-mute); margin-bottom: 8px; }
.calc-hero-num {
  font-family: var(--font-serif); font-weight: 300;
  font-size: clamp(44px, 6.5vw, 68px); line-height: 1; color: var(--green);
  letter-spacing: -0.02em; font-variant-numeric: tabular-nums;
}
.calc-hero-num em { font-style: normal; font-size: .45em; color: var(--ink-soft); }

/* stat tiles */
.calc-tiles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: 10px; overflow: hidden; margin-bottom: 28px; }
.calc-tile { background: var(--surface); padding: 16px 14px; display: flex; flex-direction: column; gap: 4px; }
.calc-tile b { font-family: var(--font-serif); font-weight: 400; font-size: 24px; color: var(--ink); font-variant-numeric: tabular-nums; }
.calc-tile span { font-size: 12px; color: var(--ink-mute); }

/* comparison bars */
.calc-bar { margin-bottom: 28px; }
.calc-bar-row { display: grid; grid-template-columns: 62px 1fr auto; align-items: center; gap: 14px; margin-bottom: 12px; }
.calc-bar-label { font-size: 13px; color: var(--ink-soft); }
.calc-bar-track { position: relative; height: 14px; background: var(--line-soft); border-radius: 4px; overflow: hidden; }
.calc-bar-fill { position: absolute; left: 0; top: 0; height: 100%; width: 0; border-radius: 4px; transition: width .6s var(--ease); }
.calc-bar-now { background: #B9C2C6; }
.calc-bar-atu { background: var(--green); }
.calc-bar-val { font-size: 13.5px; font-weight: 600; color: var(--ink); font-variant-numeric: tabular-nums; white-space: nowrap; }
.calc-bar-caption { font-size: 12px; color: var(--ink-mute); margin-top: 4px; }

.calc-results .btn { margin-top: auto; }

/* =========================================================
   TECHNICAL FILM CALCULATOR
   ========================================================= */
.tcalc {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 40px 90px -60px rgba(1,59,84,.4);
}
.tcalc-tabs { display: flex; border-bottom: 1px solid var(--line); background: var(--paper-2); }
.tcalc-tab {
  flex: 1;
  padding: 18px 16px;
  font-family: inherit; font-size: 14.5px; font-weight: 500;
  color: var(--ink-mute);
  position: relative;
  transition: color .3s var(--ease), background .3s var(--ease);
}
.tcalc-tab:hover { color: var(--ink); }
.tcalc-tab.is-active { color: var(--green); background: var(--surface); }
.tcalc-tab.is-active::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -1px; height: 2px;
  background: var(--green);
}
.tcalc-tab + .tcalc-tab { border-left: 1px solid var(--line); }

.tcalc-panel { display: none; padding: clamp(26px, 3.5vw, 40px); }
.tcalc-panel.is-active { display: block; animation: tcalcIn .4s var(--ease); }
@keyframes tcalcIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }

.tcalc-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px 22px; margin-bottom: 26px; }
.tcalc-field label { display: block; font-size: 13.5px; font-weight: 500; color: var(--ink-soft); margin-bottom: 8px; }
.tcalc-field input {
  width: 100%; font-family: inherit; font-size: 16px; color: var(--ink);
  background: var(--paper-2);
  border: 1px solid var(--line); border-radius: 10px;
  padding: 12px 14px;
  transition: border-color .3s var(--ease), background .3s var(--ease), box-shadow .3s var(--ease);
  font-variant-numeric: tabular-nums;
}
.tcalc-field input:focus {
  outline: none; border-color: var(--green); background: var(--surface);
  box-shadow: 0 0 0 4px rgba(0,87,125,.08);
}

.tcalc-outs { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.tcalc-out {
  background: var(--green); color: var(--paper);
  border-radius: 10px; padding: 16px 20px;
  display: flex; flex-direction: column; gap: 6px;
}
.tcalc-out span { font-size: 12px; letter-spacing: .06em; text-transform: uppercase; opacity: .72; }
.tcalc-out b {
  font-family: var(--font-serif); font-weight: 400; font-size: 26px; line-height: 1;
  font-variant-numeric: tabular-nums;
}
.tcalc-out--soft { background: var(--paper-2); color: var(--ink); border: 1px solid var(--line); }
.tcalc-out--soft span { opacity: 1; color: var(--ink-mute); }
.tcalc-out--soft b { color: var(--ink); }

.tcalc-note { margin-top: 22px; font-size: 13px; color: var(--ink-mute); text-align: center; }

/* =========================================================
   PRODUCT FINDER
   ========================================================= */
.finder {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 40px 90px -60px rgba(1,59,84,.4);
}
.finder-options {
  display: flex; flex-wrap: wrap; gap: 10px;
  padding: clamp(20px, 2.5vw, 28px);
  background: var(--paper-2);
  border-bottom: 1px solid var(--line);
}
.finder-opt {
  font-family: inherit; font-size: 14.5px; font-weight: 500;
  color: var(--ink-soft); background: var(--surface);
  border: 1px solid var(--line); border-radius: 100px;
  padding: 11px 20px;
  transition: background .3s var(--ease), color .3s var(--ease), border-color .3s var(--ease), transform .3s var(--ease);
}
.finder-opt:hover { border-color: var(--green); color: var(--ink); transform: translateY(-1px); }
.finder-opt.is-active { background: var(--green); color: var(--paper); border-color: var(--green); }
.finder-result { padding: clamp(28px, 3.5vw, 44px); }
.finder-rec { display: none; }
.finder-rec.is-active { display: block; animation: tcalcIn .4s var(--ease); }
.finder-rec-tag {
  display: inline-block; font-size: 12px; letter-spacing: .14em;
  text-transform: uppercase; color: var(--brass); margin-bottom: 14px;
}
.finder-rec h3 {
  font-family: var(--font-serif); font-weight: 400;
  font-size: clamp(22px, 2.6vw, 30px); margin-bottom: 14px; letter-spacing: -0.01em;
}
.finder-rec p { color: var(--ink-soft); font-size: 16px; max-width: 60ch; margin-bottom: 20px; }
.finder-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 26px; }
.finder-tags li {
  font-size: 12.5px; letter-spacing: .03em; color: var(--green-2);
  border: 1px solid var(--line); padding: 6px 13px; border-radius: 100px;
}

/* =========================================================
   FILM GRADES: STANDARD vs SUPER POWER
   ========================================================= */
.grades { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.grade-card {
  position: relative; background: var(--surface);
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: clamp(28px, 3.5vw, 40px);
}
.grade-card--featured { border-color: var(--green); box-shadow: 0 30px 70px -50px rgba(1,59,84,.5); }
.grade-ribbon {
  position: absolute; top: 0; right: 24px;
  background: var(--brass); color: #fff;
  font-size: 11px; font-weight: 600; letter-spacing: .1em; text-transform: uppercase;
  padding: 6px 14px; border-radius: 0 0 8px 8px;
}
.grade-head { display: flex; align-items: center; gap: 12px; margin-bottom: 26px; }
.grade-name { font-family: var(--font-serif); font-weight: 400; font-size: clamp(24px, 3vw, 32px); letter-spacing: -0.01em; }
.grade-tag {
  font-size: 11px; letter-spacing: .1em; text-transform: uppercase; color: var(--ink-mute);
  border: 1px solid var(--line); padding: 5px 11px; border-radius: 100px;
}
.grade-tag--gold { color: var(--brass); border-color: rgba(176,141,87,.45); }

.stretch-viz { margin-bottom: 24px; }
.stretch-cap { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; margin-bottom: 12px; }
.stretch-cap span { font-size: 13px; color: var(--ink-mute); }
.stretch-cap b { font-family: var(--font-serif); font-weight: 400; font-size: 24px; color: var(--green); }
.stretch-track { height: 16px; background: var(--paper-2); border: 1px solid var(--line-soft); border-radius: 6px; overflow: hidden; }
.stretch-bar { display: flex; height: 100%; }
.stretch-base { flex: none; background: var(--green); height: 100%; }
.stretch-ext {
  flex: 1;
  background: repeating-linear-gradient(90deg, rgba(0,87,125,.30) 0, rgba(0,87,125,.30) 6px, rgba(0,87,125,.15) 6px, rgba(0,87,125,.15) 12px);
  transform: scaleX(0); transform-origin: left;
  transition: transform 1s var(--ease) .25s;
}
.reveal.in .stretch-ext { transform: scaleX(1); }

.grade-stats { display: grid; gap: 0; }
.grade-stats li {
  display: flex; justify-content: space-between; align-items: baseline;
  padding: 13px 0; border-top: 1px solid var(--line-soft); font-size: 14.5px;
}
.grade-stats li:first-child { border-top: none; }
.grade-stats span { color: var(--ink-mute); }
.grade-stats b { font-weight: 600; color: var(--ink); font-variant-numeric: tabular-nums; }
.grade-win { color: var(--green) !important; }

.grades-note {
  display: flex; align-items: center; justify-content: space-between; gap: 28px;
  margin-top: 28px; padding-top: 26px; border-top: 1px solid var(--line);
}
.grades-note p { color: var(--ink-soft); font-size: 15px; max-width: 72ch; }
.grades-note .btn { flex: none; }

/* =========================================================
   CERTIFICATIONS
   ========================================================= */
.certs {
  margin-top: clamp(40px, 5vw, 60px); padding-top: 34px;
  border-top: 1px solid var(--line);
  display: flex; align-items: center; gap: 28px; flex-wrap: wrap;
}
.certs-label { font-size: 12px; letter-spacing: .14em; text-transform: uppercase; color: var(--ink-mute); }
.certs-badges { display: flex; gap: 16px; flex-wrap: wrap; }
.cert-badge {
  display: flex; align-items: center; gap: 14px;
  background: var(--surface); border: 1px solid var(--line);
  border-radius: 12px; padding: 14px 20px;
}
.cert-seal { width: 42px; height: 42px; flex: none; }
.cs-ring { fill: none; stroke: var(--green); stroke-width: 2; }
.cs-check { fill: none; stroke: var(--brass); stroke-width: 3; stroke-linecap: round; stroke-linejoin: round; }
.cs-ribbon { fill: none; stroke: var(--green); stroke-width: 2; stroke-linejoin: round; }
.cs-leaf { fill: rgba(0,87,125,.15); stroke: var(--green); stroke-width: 2; stroke-linejoin: round; }
.cs-stem { fill: none; stroke: var(--green); stroke-width: 2; stroke-linecap: round; }
.cert-text b { display: block; font-size: 16px; color: var(--ink); }
.cert-text span { font-size: 13px; color: var(--ink-mute); }

/* =========================================================
   LEGAL PAGES
   ========================================================= */
.legal { padding-top: 130px; padding-bottom: clamp(60px, 9vw, 110px); }
.legal-inner { max-width: 820px; }
.legal-title {
  font-family: var(--font-serif); font-weight: 300;
  font-size: clamp(34px, 5vw, 52px); line-height: 1.08; letter-spacing: -0.02em;
  margin-bottom: 14px;
}
.legal-updated { color: var(--ink-mute); font-size: 14px; margin-bottom: clamp(36px, 5vw, 54px); }
.legal-body section { margin-bottom: 36px; }
.legal-body h2 {
  font-family: var(--font-serif); font-weight: 400;
  font-size: clamp(20px, 2.4vw, 26px); letter-spacing: -0.01em;
  margin-bottom: 14px;
}
.legal-body p { color: var(--ink-soft); font-size: 16px; margin-bottom: 12px; }
.legal-body a { color: var(--green); text-decoration: underline; text-underline-offset: 3px; }
.legal-body a:hover { color: var(--green-2); }
.legal-list { margin: 6px 0 0; display: grid; gap: 9px; }
.legal-list li {
  position: relative; padding-left: 20px; color: var(--ink-soft); font-size: 16px;
}
.legal-list li::before {
  content: ""; position: absolute; left: 0; top: 9px;
  width: 6px; height: 6px; border-radius: 50%; background: var(--brass);
}
.legal-list li b { color: var(--ink); }
.site-footer .footer-credit a { color: rgba(246,244,239,.7); transition: color .3s var(--ease); }
.site-footer .footer-credit a:hover { color: var(--brass); }

/* =========================================================
   REVEAL ANIMATION
   ========================================================= */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .9s var(--ease), transform .9s var(--ease); }
.reveal.in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
  .reveal { opacity: 1; transform: none; }
}

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width: 960px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-visual { justify-content: flex-start; }
  .hv-card { max-width: 100%; }
  .contact-inner { grid-template-columns: 1fr; }
  .results-inner { grid-template-columns: 1fr; gap: 40px; }
  .industry-grid { grid-template-columns: repeat(2, 1fr); }
  .catalog-grid { grid-template-columns: repeat(2, 1fr); }
  .faq-inner { grid-template-columns: 1fr; gap: 24px; }
  .calc { grid-template-columns: 1fr; }
  .grades-note { flex-direction: column; align-items: flex-start; gap: 18px; }
}

@media (max-width: 760px) {
  .nav { display: none; }
  .menu-toggle { display: flex; }
  .header-actions .btn-sm { display: none; }

  .site-header .nav.open {
    display: flex;
    position: fixed;
    top: 74px; left: 0; right: 0;
    flex-direction: column;
    gap: 0;
    background: var(--paper-2);
    border-bottom: 1px solid var(--line);
    padding: 8px var(--pad) 20px;
  }
  .site-header .nav.open a { padding: 16px 0; border-bottom: 1px solid var(--line-soft); font-size: 17px; }

  .catalog-grid { grid-template-columns: 1fr; }
  .industry-grid { grid-template-columns: 1fr; }
  .grades { grid-template-columns: 1fr; }
  .certs { flex-direction: column; align-items: flex-start; gap: 18px; }
  .process { grid-template-columns: 1fr; gap: 26px; }
  .process-stage { min-height: 200px; }
  .steps { grid-template-columns: 1fr; gap: 30px; }
  .pillars { grid-template-columns: 1fr; }
  .tcalc-grid { grid-template-columns: 1fr; }
  .tcalc-tab { padding: 15px 8px; font-size: 13px; }
  .trust-strip { grid-template-columns: repeat(2, 1fr); gap: 30px 24px; }
  .field-row { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; gap: 32px; }
  .footer-cols { grid-template-columns: 1fr 1fr; }
  .contact-list li { grid-template-columns: 100px 1fr; }
}

@media (max-width: 420px) {
  .trust-strip { grid-template-columns: 1fr; }
  .footer-cols { grid-template-columns: 1fr; }
}