/* ============================================================
   3DPrintPoint — B2B Redesign 2026
   Light industrial system: Warm-Weiß / Ink / Gold-Akzent.
   Tokens angelehnt an das Shop-Designsystem (#f4f1ec / #b8952e / #181613).
   ============================================================ */

:root {
  --paper: #f6f4ef;        /* warmes Off-White, Flächen */
  --card: #ffffff;         /* Karten */
  --ink: #191613;          /* Primärtext, dunkle Bänder */
  --ink-2: #57514a;        /* Sekundärtext (AA auf paper/card) */
  --ink-3: #8a8279;        /* Tertiär/Metadaten */
  --line: #e7e1d7;         /* Hairlines */
  --line-strong: #d8d0c3;
  --gold: #b8952e;         /* Brand-Gold: Flächen, große Ziffern */
  --gold-deep: #8a6d1f;    /* Gold als Text auf hellem Grund (AA) */
  --gold-soft: #f3ecda;    /* Gold-Tint für Tags */
  --dark: #15120e;         /* dunkle Sektionen */
  --dark-card: #1e1a15;
  --dark-line: #332d25;
  --dark-text: #f4f1ec;
  --dark-text-2: #b5ac9f;
  --focus: #1a6ce0;
  --radius: 14px;
  --radius-sm: 9px;
  --inner: 1180px;
  --narrow: 780px;
  --shadow-card: 0 1px 2px rgba(25, 22, 19, 0.04), 0 8px 28px rgba(25, 22, 19, 0.05);
}

/* ── Base ── */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0;
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16.5px;
  line-height: 1.65;
  color: var(--ink);
  background: var(--card);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; }
a { color: inherit; }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 3px; border-radius: 3px; }

.inner { max-width: var(--inner); margin: 0 auto; padding: 0 clamp(1.1rem, 4vw, 2.5rem); }

.visually-hidden {
  position: absolute; width: 1px; height: 1px; margin: -1px;
  padding: 0; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.a11y-skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 200;
  background: var(--ink); color: #fff; padding: 0.7rem 1.2rem;
  border-radius: 0 0 var(--radius-sm) 0; text-decoration: none; font-weight: 600;
}
.a11y-skip-link:focus { left: 0; }

/* ── Typo ── */
h1, h2, h3, h4 { margin: 0; line-height: 1.15; letter-spacing: -0.015em; }
p { margin: 0; }
.display {
  font-size: clamp(2.35rem, 4.6vw, 3.9rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.06;
}
.nw { white-space: nowrap; }
.h2 {
  font-size: clamp(1.8rem, 3.4vw, 2.7rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.08;
}
.lead { font-size: clamp(1.08rem, 1.6vw, 1.25rem); color: var(--ink-2); line-height: 1.6; }
.kicker {
  display: inline-block;
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold-deep);
  margin-bottom: 1.1rem;
}
.kicker-dark { color: var(--gold); }
.chev { display: inline-block; transition: transform 0.2s ease; }
a:hover .chev { transform: translateX(3px); }

/* ── Buttons ── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
  padding: 0.85rem 1.7rem;
  border-radius: var(--radius-sm);
  font-weight: 600; font-size: 1rem; text-decoration: none;
  transition: background 0.18s ease, color 0.18s ease, border-color 0.18s ease, transform 0.18s ease;
}
.btn-primary { background: var(--ink); color: #fff; }
.btn-primary:hover { background: #2e2922; transform: translateY(-1px); }
.btn-quiet { background: transparent; color: var(--ink); border: 1px solid var(--line-strong); }
.btn-quiet:hover { border-color: var(--ink); }
.btn-block { width: 100%; }

/* ── Nav ── */
#nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}
#nav.scrolled { border-bottom-color: var(--line); box-shadow: 0 4px 24px rgba(25, 22, 19, 0.05); }
.nav-inner {
  max-width: var(--inner); margin: 0 auto;
  padding: 0.9rem clamp(1.1rem, 4vw, 2.5rem);
  display: flex; align-items: center; justify-content: space-between; gap: 1.5rem;
}
.nav-logo {
  display: inline-flex; align-items: center; gap: 0.6rem;
  font-weight: 700; font-size: 1.1rem; letter-spacing: -0.02em; text-decoration: none;
}
.nav-links { display: flex; align-items: center; gap: clamp(0.9rem, 2vw, 1.7rem); }
.nav-link {
  text-decoration: none; font-size: 0.95rem; font-weight: 500; color: var(--ink-2);
  transition: color 0.15s ease;
}
.nav-link:hover { color: var(--ink); }
.nav-cta {
  text-decoration: none; font-size: 0.95rem; font-weight: 600;
  background: var(--ink); color: #fff;
  padding: 0.55rem 1.15rem; border-radius: var(--radius-sm);
  transition: background 0.18s ease;
}
.nav-cta:hover { background: #2e2922; }
.nav-burger { display: none; }

/* ── Hero ── */
.hero {
  position: relative;
  background:
    linear-gradient(to bottom, rgba(246, 244, 239, 0) 55%, var(--card) 100%),
    repeating-linear-gradient(to right, rgba(25, 22, 19, 0.035) 0 1px, transparent 1px 64px),
    repeating-linear-gradient(to bottom, rgba(25, 22, 19, 0.035) 0 1px, transparent 1px 64px),
    var(--paper);
  padding: clamp(4rem, 8vw, 7rem) 0 clamp(3rem, 6vw, 5rem);
  overflow: hidden;
}
.hero-grid {
  display: grid; grid-template-columns: 1.04fr 0.96fr;
  gap: clamp(2rem, 5vw, 4.5rem); align-items: center;
}
.hero-copy .display { margin: 0 0 1.4rem; }
.hero-copy .lead { max-width: 34rem; }
.hero-ctas { display: flex; flex-wrap: wrap; gap: 0.9rem; margin-top: 2.2rem; }
.hero-proof {
  list-style: none; display: flex; flex-wrap: wrap; gap: 0.6rem 1.8rem;
  margin: 2.4rem 0 0; padding: 1.1rem 0 0;
  border-top: 1px solid var(--line-strong);
}
.hero-proof li {
  font-size: 0.88rem; font-weight: 600; color: var(--ink-2);
  display: inline-flex; align-items: center; gap: 0.5rem;
}
.hero-proof li::before {
  content: ""; width: 6px; height: 6px; border-radius: 50%;
  background: var(--gold); flex: none;
}
.hero-figure { margin: 0; min-width: 0; }
.hero-figure img {
  width: 100%; aspect-ratio: 4 / 3; object-fit: cover;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  box-shadow: 0 24px 60px rgba(25, 22, 19, 0.14);
}
.hero-figure figcaption { font-size: 0.84rem; color: var(--ink-3); margin-top: 0.85rem; }

/* Hero-Intro-Animation */
.hi { opacity: 0; transform: translateY(16px); animation: hiIn 0.7s cubic-bezier(0.2, 0.7, 0.2, 1) forwards; }
.hi-1 { animation-delay: 0.05s; } .hi-2 { animation-delay: 0.14s; }
.hi-3 { animation-delay: 0.23s; } .hi-4 { animation-delay: 0.32s; } .hi-5 { animation-delay: 0.41s; }
@keyframes hiIn { to { opacity: 1; transform: none; } }

/* Scroll-Reveal */
.rv { opacity: 0; transform: translateY(14px); transition: opacity 0.6s ease, transform 0.6s cubic-bezier(0.2, 0.7, 0.2, 1); transition-delay: var(--d, 0s); }
.rv.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .hi, .rv { opacity: 1; transform: none; animation: none; transition: none; }
}

/* ── Stats ── */
.stats { border-bottom: 1px solid var(--line); background: var(--card); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.stat {
  padding: clamp(1.6rem, 3vw, 2.4rem) 1rem;
  text-align: center;
  border-left: 1px solid var(--line);
}
.stat:first-child { border-left: 0; }
.stat b {
  display: block; font-size: clamp(1.7rem, 3vw, 2.4rem); font-weight: 700;
  letter-spacing: -0.03em; font-variant-numeric: tabular-nums;
}
.stat b small { font-size: 0.55em; font-weight: 600; color: var(--gold-deep); letter-spacing: 0; }
.stat span { display: block; font-size: 0.85rem; color: var(--ink-2); margin-top: 0.35rem; }

/* ── Sections ── */
.section { padding: clamp(4.5rem, 8vw, 7.5rem) 0; background: var(--card); }
.section-alt { background: var(--paper); }
.section-head { max-width: 46rem; margin-bottom: clamp(2.5rem, 5vw, 4rem); }
.section-head-center { margin-left: auto; margin-right: auto; text-align: center; }
.section-sub { color: var(--ink-2); margin-top: 1.3rem; font-size: 1.05rem; }

/* ── Leistungen: Säulen ── */
.pillars { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(1.2rem, 2.5vw, 2rem); }
.pillar {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: clamp(1.7rem, 3vw, 2.5rem);
  box-shadow: var(--shadow-card);
  display: flex; flex-direction: column;
}
.section .pillar { background: var(--paper); box-shadow: none; }
.pillar-tag {
  display: inline-block; font-size: 0.74rem; font-weight: 600;
  letter-spacing: 0.1em; text-transform: uppercase;
  background: var(--ink); color: #fff;
  padding: 0.3rem 0.7rem; border-radius: 99px; margin-bottom: 1.2rem;
}
.pillar-tag-gold { background: var(--gold); color: var(--ink); }
.pillar-head h3 { font-size: 1.5rem; letter-spacing: -0.02em; }
.pillar-head p { color: var(--ink-2); margin-top: 0.7rem; }
.pillar-items { margin-top: 1.8rem; flex: 1; }
.p-item { padding: 1.15rem 0; border-top: 1px solid var(--line); }
.p-item h4 { font-size: 1.04rem; font-weight: 600; }
.p-item p { font-size: 0.95rem; color: var(--ink-2); margin-top: 0.35rem; }
.pillar-link {
  margin-top: 1.6rem; display: inline-flex; align-items: center; gap: 0.45rem;
  font-weight: 600; text-decoration: none; color: var(--gold-deep); font-size: 1rem;
}
.pillar-link:hover { text-decoration: underline; text-underline-offset: 4px; }

/* ── Werkstoffe ── */
.mat-cols { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(1.2rem, 2.5vw, 2rem); }
.mat-col {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: clamp(1.5rem, 2.6vw, 2.2rem);
}
.mat-col-title {
  font-size: 1.15rem; display: flex; align-items: baseline; gap: 0.7rem;
  padding-bottom: 1.1rem; border-bottom: 1px solid var(--line);
}
.mat-col-title span {
  font-size: 0.76rem; font-weight: 600; color: var(--gold-deep);
  text-transform: uppercase; letter-spacing: 0.1em;
}
.mat { display: grid; grid-template-columns: 11rem 1fr; gap: 1rem; padding: 0.95rem 0; border-bottom: 1px solid var(--line); }
.mat:last-child { border-bottom: 0; padding-bottom: 0; }
.mat b { font-weight: 600; font-size: 0.98rem; }
.mat span { font-size: 0.92rem; color: var(--ink-2); }
.mat-more { margin-top: 2rem; color: var(--ink-2); font-size: 0.98rem; }
.mat-more a { color: var(--gold-deep); font-weight: 600; text-decoration: none; }
.mat-more a:hover { text-decoration: underline; text-underline-offset: 4px; }

/* ── Ablauf ── */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: clamp(1.2rem, 2.5vw, 2rem); }
.step { position: relative; padding-top: 1.4rem; border-top: 2px solid var(--line-strong); }
.step-n {
  position: absolute; top: -0.85rem; left: 0;
  background: var(--card); padding-right: 0.7rem;
  font-weight: 700; font-size: 0.95rem; color: var(--gold-deep);
  font-variant-numeric: tabular-nums;
}
.step h3 { font-size: 1.1rem; }
.step p { font-size: 0.94rem; color: var(--ink-2); margin-top: 0.5rem; }
.steps-note {
  margin-top: clamp(2.2rem, 4vw, 3rem); padding: 1.1rem 1.4rem;
  background: var(--gold-soft); border-radius: var(--radius-sm);
  font-size: 0.97rem; color: var(--ink);
}
.steps-note a { color: var(--gold-deep); font-weight: 600; }

/* ── Fertigung (dark) ── */
.specs { background: var(--dark); color: var(--dark-text); padding: clamp(4.5rem, 8vw, 7.5rem) 0; }
.specs .h2 { color: var(--dark-text); }
.machine-figure { margin: 0 0 clamp(2rem, 4vw, 3rem); }
.machine-figure img {
  width: 100%; max-height: 520px; object-fit: cover; object-position: center 35%;
  border-radius: var(--radius); border: 1px solid var(--dark-line);
}
.machine-figure figcaption { font-size: 0.84rem; color: var(--dark-text-2); margin-top: 0.85rem; }
.spec-cols { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(1.2rem, 2.5vw, 2rem); }
.spec-col {
  background: var(--dark-card); border: 1px solid var(--dark-line);
  border-radius: var(--radius); padding: clamp(1.6rem, 3vw, 2.3rem);
}
.cap {
  display: inline-block; font-size: 0.74rem; font-weight: 600;
  letter-spacing: 0.12em; text-transform: uppercase; color: var(--gold);
  margin-bottom: 0.9rem;
}
.spec-col h3 { font-size: 1.35rem; margin-bottom: 1.2rem; }
.spec-row {
  display: flex; justify-content: space-between; align-items: baseline; gap: 1.5rem;
  padding: 0.75rem 0; border-top: 1px solid var(--dark-line);
  font-size: 0.95rem;
}
.spec-row span { color: var(--dark-text-2); }
.spec-row strong { font-weight: 600; text-align: right; font-variant-numeric: tabular-nums; }

/* ── Netzwerk-Galerie (in dunkler Fertigungs-Sektion) ── */
.net-gallery {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: clamp(1rem, 2vw, 1.6rem);
  margin-top: clamp(2rem, 4vw, 3rem);
}
.net-gallery figure { margin: 0; }
.net-gallery img {
  width: 100%; aspect-ratio: 1 / 1; object-fit: cover;
  border-radius: var(--radius); border: 1px solid var(--dark-line);
}
.net-gallery figcaption { font-size: 0.84rem; color: var(--dark-text-2); margin-top: 0.7rem; }
.net-note { margin-top: 1.6rem; font-size: 0.84rem; color: var(--dark-text-2); }

/* ── Beispiele ── */
.cases { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(1.2rem, 2.5vw, 2rem); align-items: start; }
.case {
  border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden;
  background: var(--card); box-shadow: var(--shadow-card);
  display: flex; flex-direction: column;
}
.case-media img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }
.case-body { padding: clamp(1.3rem, 2.4vw, 1.9rem); display: flex; flex-direction: column; flex: 1; }
.case-tag {
  align-self: flex-start;
  font-size: 0.72rem; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase;
  background: var(--paper); border: 1px solid var(--line-strong); color: var(--ink-2);
  padding: 0.25rem 0.65rem; border-radius: 99px; margin-bottom: 0.9rem;
}
.case-tag-gold { background: var(--gold-soft); border-color: #e2d4a8; color: var(--gold-deep); }
.case h3 { font-size: 1.2rem; }
.case p { font-size: 0.95rem; color: var(--ink-2); margin-top: 0.5rem; }
.case-specs { margin-top: auto; padding-top: 1.1rem; }
.cs {
  display: flex; justify-content: space-between; gap: 1rem;
  font-size: 0.9rem; padding: 0.5rem 0; border-top: 1px solid var(--line);
}
.cs span { color: var(--ink-3); }
.cs strong { font-weight: 600; font-variant-numeric: tabular-nums; }
.case-metal { background: linear-gradient(180deg, #fffdf7 0%, var(--card) 60%); }
.cases-note { margin-top: 1.8rem; font-size: 0.88rem; color: var(--ink-3); }

/* ── Privat-Band ── */
.privat { background: var(--paper); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.privat-inner {
  display: flex; align-items: center; justify-content: space-between; gap: 2rem; flex-wrap: wrap;
  padding-top: clamp(2.2rem, 4vw, 3.2rem); padding-bottom: clamp(2.2rem, 4vw, 3.2rem);
}
.privat h2 { font-size: 1.35rem; letter-spacing: -0.02em; }
.privat p { color: var(--ink-2); font-size: 0.98rem; margin-top: 0.4rem; max-width: 36rem; }
.privat-links { display: flex; gap: 1.6rem; flex-wrap: wrap; }
.privat-links a {
  font-weight: 600; text-decoration: none; color: var(--gold-deep); font-size: 1rem;
  display: inline-flex; align-items: center; gap: 0.4rem;
}
.privat-links a:hover { text-decoration: underline; text-underline-offset: 4px; }

/* ── FAQ ── */
.faq-list { max-width: var(--narrow); margin: 0 auto; }
.faq-item { border-bottom: 1px solid var(--line-strong); }
.faq-h { margin: 0; }
.faq-q {
  width: 100%; display: flex; justify-content: space-between; align-items: center; gap: 1.5rem;
  background: none; border: 0; cursor: pointer; text-align: left;
  font: inherit; font-weight: 600; font-size: 1.07rem; color: var(--ink);
  padding: 1.25rem 0.2rem;
}
.faq-q:hover { color: var(--gold-deep); }
.faq-ico { position: relative; flex: none; width: 14px; height: 14px; }
.faq-ico::before, .faq-ico::after {
  content: ""; position: absolute; background: currentColor; transition: transform 0.25s ease;
}
.faq-ico::before { left: 0; top: 6px; width: 14px; height: 2px; }
.faq-ico::after { left: 6px; top: 0; width: 2px; height: 14px; }
.faq-q[aria-expanded="true"] .faq-ico::after { transform: scaleY(0); }
.faq-a { padding: 0 2.6rem 1.4rem 0.2rem; color: var(--ink-2); font-size: 0.99rem; }

/* ── Kontakt ── */
.contact { padding: clamp(4.5rem, 8vw, 7.5rem) 0; background: var(--card); }
.contact-card {
  background: var(--dark); color: var(--dark-text);
  border-radius: calc(var(--radius) + 6px);
  padding: clamp(2rem, 4.5vw, 3.8rem);
  display: grid; grid-template-columns: 1.15fr 0.85fr; gap: clamp(2rem, 4vw, 4rem);
  align-items: center;
}
.contact-card .h2 { color: var(--dark-text); margin-bottom: 1.1rem; }
.contact-card .kicker { color: var(--gold); }
.contact-copy p { color: var(--dark-text-2); max-width: 32rem; }
.contact-points { list-style: none; margin: 1.7rem 0 0; padding: 0; display: grid; gap: 0.65rem; }
.contact-points li { display: flex; align-items: center; gap: 0.7rem; font-size: 0.97rem; }
.contact-points li::before {
  content: ""; flex: none; width: 7px; height: 7px; border-radius: 50%; background: var(--gold);
}
.contact-actions { display: grid; gap: 0.8rem; }
.contact-actions .btn-primary { background: var(--gold); color: var(--ink); font-size: 1.05rem; padding: 1rem 1.7rem; }
.contact-actions .btn-primary:hover { background: #c9a63e; }
.contact-actions .btn-quiet { color: var(--dark-text); border-color: var(--dark-line); font-size: 1.05rem; padding: 1rem 1.7rem; }
.contact-actions .btn-quiet:hover { border-color: var(--dark-text-2); }
.contact-addr { font-size: 0.88rem; color: var(--dark-text-2); text-align: center; margin-top: 0.5rem; line-height: 1.6; }

/* ── Newsletter ── */
.nl { background: var(--paper); border-top: 1px solid var(--line); padding: clamp(3rem, 5vw, 4.5rem) 0; }
.nl-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: clamp(1.5rem, 4vw, 3.5rem); align-items: center; }
.nl h2 { font-size: 1.4rem; letter-spacing: -0.02em; }
.nl p { color: var(--ink-2); margin-top: 0.4rem; font-size: 0.97rem; }
.nl-row { display: flex; gap: 0.7rem; flex-wrap: wrap; }
.nl-row input {
  flex: 1 1 11rem; min-width: 0;
  padding: 0.8rem 1rem; font: inherit; font-size: 0.98rem;
  border: 1px solid var(--line-strong); border-radius: var(--radius-sm);
  background: var(--card); color: var(--ink);
}
.nl-row input:focus-visible { outline-offset: 0; }
.nl-row button {
  padding: 0.8rem 1.5rem; font: inherit; font-weight: 600; font-size: 0.98rem;
  background: var(--ink); color: #fff; border: 0; border-radius: var(--radius-sm); cursor: pointer;
  transition: background 0.18s ease;
}
.nl-row button:hover { background: #2e2922; }
.nl-row button:disabled { opacity: 0.6; cursor: wait; }
.nl-fine { font-size: 0.8rem; color: var(--ink-3); margin-top: 0.8rem; }
.nl-fine a { color: var(--ink-2); }
.nl-msg { font-size: 0.95rem; margin-bottom: 0.6rem; min-height: 0; }
.nl-msg.success { color: #1a7a3c; }
.nl-msg.error { color: #b3261e; }

/* ── Footer ── */
footer { background: var(--dark); color: var(--dark-text-2); padding: clamp(3.5rem, 6vw, 5rem) 0 2rem; }
.f-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: clamp(1.8rem, 4vw, 3rem); }
.f-brand { display: flex; align-items: center; gap: 0.6rem; font-weight: 700; color: var(--dark-text); font-size: 1.05rem; }
.f-desc { font-size: 0.92rem; margin-top: 0.9rem; max-width: 20rem; }
.f-col h4 {
  font-size: 0.78rem; font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--dark-text); margin-bottom: 1rem;
}
.f-col ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.55rem; }
.f-col a { text-decoration: none; font-size: 0.93rem; transition: color 0.15s ease; }
.f-col a:hover { color: var(--dark-text); }
.f-bottom {
  display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap;
  margin-top: clamp(2.5rem, 5vw, 3.5rem); padding-top: 1.5rem;
  border-top: 1px solid var(--dark-line); font-size: 0.84rem;
}

/* ── Responsive ── */
@media (max-width: 1020px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-figure { max-width: 640px; }
  .f-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 880px) {
  .pillars, .mat-cols, .spec-cols, .cases { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr 1fr; row-gap: 2.5rem; }
  .contact-card { grid-template-columns: 1fr; }
  .nl-grid { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
  .net-gallery { grid-template-columns: 1fr; }
  .net-gallery img { aspect-ratio: 16 / 9; }
  .nav-burger {
    display: inline-flex; flex-direction: column; justify-content: center; gap: 5px;
    width: 42px; height: 42px; padding: 0 9px;
    background: none; border: 1px solid var(--line-strong); border-radius: var(--radius-sm);
    cursor: pointer;
  }
  .nav-burger span { display: block; height: 2px; background: var(--ink); border-radius: 2px; transition: transform 0.25s ease; }
  .nav-burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(3.5px) rotate(45deg); }
  .nav-burger[aria-expanded="true"] span:nth-child(2) { transform: translateY(-3.5px) rotate(-45deg); }
  .nav-links {
    position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--card); border-bottom: 1px solid var(--line);
    padding: 0.6rem clamp(1.1rem, 4vw, 2.5rem) 1.2rem;
    display: none;
  }
  .nav-links.open { display: flex; }
  .nav-link { padding: 0.8rem 0.2rem; font-size: 1.05rem; border-bottom: 1px solid var(--line); }
  .nav-cta { margin-top: 1rem; text-align: center; padding: 0.85rem 1rem; }
}
@media (max-width: 560px) {
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .stat { border-left: 0; border-top: 1px solid var(--line); }
  .stat:nth-child(1), .stat:nth-child(2) { border-top: 0; }
  .stat:nth-child(even) { border-left: 1px solid var(--line); }
  .steps { grid-template-columns: 1fr; }
  .mat { grid-template-columns: 1fr; gap: 0.25rem; }
  .hero-ctas .btn { width: 100%; }
  .f-grid { grid-template-columns: 1fr; }
}