/* ==========================================================================
   Walker Bau - Redesign Stylesheet
   Aesthetik: Navy + Stahl-Geometrie + vertikale Linien (Geruestbau als Leitmotiv)
   ========================================================================== */

:root {
  --walker-navy: #0A1E4F;
  --walker-navy-deep: #061433;
  --walker-blue: #1B3FD6;
  --walker-blue-light: #E8ECFB;
  --walker-steel: #E8EBF2;
  --walker-steel-dark: #C4CAD6;
  --walker-ink: #0E1220;
  --walker-slate: #4A5166;
  --walker-white: #FFFFFF;
  --walker-off: #F7F8FB;

  --container: 1240px;
  --gutter: 48px;
  --section-py: 96px;

  --font-head: "Archivo", -apple-system, system-ui, sans-serif;
  --font-body: "Inter", -apple-system, system-ui, sans-serif;
}

/* Reset */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  color: var(--walker-slate);
  background: var(--walker-white);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; height: auto; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }

h1, h2, h3, h4, h5 {
  font-family: var(--font-head);
  color: var(--walker-ink);
  letter-spacing: -0.02em;
  line-height: 1.05;
  margin: 0 0 0.6em;
  font-weight: 800;
}
h1 { font-size: clamp(2.6rem, 5vw, 4.8rem); font-weight: 900; }
h2 { font-size: clamp(2rem, 3.5vw, 3.2rem); }
h3 { font-size: 1.5rem; font-weight: 700; letter-spacing: -0.015em; }
p { margin: 0 0 1em; }

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
  position: relative;
}

/* Vertical steel edge lines - Geruestbau leitmotiv */
.container::before,
.container::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  width: 1px;
  background: var(--walker-steel-dark);
  opacity: 0.5;
}
.container::before { left: 24px; }
.container::after { right: 24px; }

section { padding: var(--section-py) 0; position: relative; }

/* Section label with number */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  font-family: var(--font-head);
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--walker-navy);
  margin-bottom: 24px;
}
.eyebrow::before {
  content: "";
  width: 28px;
  height: 1px;
  background: var(--walker-navy);
}
.eyebrow .num {
  display: inline-block;
  padding: 4px 8px;
  background: var(--walker-navy);
  color: var(--walker-white);
  font-weight: 800;
  letter-spacing: 0.08em;
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 18px 32px;
  font-family: var(--font-head);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  border: 1px solid transparent;
  border-radius: 0;
  transition: transform .2s ease, background-color .2s ease, color .2s ease;
}
.btn svg { width: 18px; height: 18px; }
.btn-primary {
  background: var(--walker-navy);
  color: var(--walker-white);
  border-color: var(--walker-navy);
}
.btn-primary:hover { background: var(--walker-navy-deep); transform: translateY(-2px); }
.btn-ghost {
  background: transparent;
  color: var(--walker-navy);
  border-color: var(--walker-navy);
}
.btn-ghost:hover { background: var(--walker-navy); color: var(--walker-white); }
.btn-inline {
  padding: 0;
  background: transparent;
  color: var(--walker-navy);
  border: none;
  border-bottom: 1px solid var(--walker-navy);
  padding-bottom: 4px;
  letter-spacing: 0.08em;
}
.btn-inline:hover { color: var(--walker-blue); border-color: var(--walker-blue); }

/* ===== HEADER ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--walker-white);
  border-bottom: 1px solid var(--walker-steel-dark);
}
.site-header .container::before,
.site-header .container::after { display: none; }
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 0;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 14px;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 1.15rem;
  color: var(--walker-ink);
  letter-spacing: -0.02em;
}
.nav-logo svg { width: 34px; height: 34px; }
.nav-logo .logo-mark {
  background: var(--walker-navy);
  color: var(--walker-white);
  width: 38px;
  height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
}
.nav-logo small {
  display: block;
  font-family: var(--font-body);
  font-size: 0.65rem;
  font-weight: 500;
  color: var(--walker-slate);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-top: 2px;
}
.nav-menu {
  display: flex;
  gap: 36px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-menu a {
  font-family: var(--font-head);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--walker-ink);
  position: relative;
  padding: 8px 0;
}
.nav-menu a:hover,
.nav-menu a.active { color: var(--walker-navy); }
.nav-menu a.active::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  height: 2px;
  width: 100%;
  background: var(--walker-navy);
}
.nav-cta { display: flex; align-items: center; gap: 16px; }
.nav-phone {
  font-family: var(--font-head);
  font-weight: 700;
  color: var(--walker-navy);
  font-size: 0.9rem;
  letter-spacing: 0.02em;
}
.nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--walker-navy);
  padding: 10px;
  color: var(--walker-navy);
}
.nav-toggle svg { width: 20px; height: 20px; }

/* ===== HERO ===== */
.hero {
  background: var(--walker-off);
  padding: 120px 0 100px;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  top: 0; bottom: 0;
  right: 8%;
  width: 1px;
  background: var(--walker-steel-dark);
  opacity: 0.6;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 80px;
  align-items: end;
}
.hero-content h1 {
  margin-bottom: 28px;
}
.hero-content h1 .accent {
  color: var(--walker-navy);
  display: inline-block;
  position: relative;
}
.hero-content h1 .accent::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 4px;
  width: 100%;
  height: 6px;
  background: var(--walker-blue);
  opacity: 0.2;
  z-index: -1;
}
.hero-content p.lead {
  font-size: 1.2rem;
  color: var(--walker-slate);
  max-width: 560px;
  margin-bottom: 40px;
}
.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.hero-meta {
  border-left: 2px solid var(--walker-navy);
  padding: 20px 0 20px 28px;
}
.hero-meta .label {
  font-family: var(--font-head);
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--walker-navy);
  display: block;
  margin-bottom: 10px;
}
.hero-meta .big {
  font-family: var(--font-head);
  font-size: 3rem;
  font-weight: 900;
  color: var(--walker-ink);
  line-height: 1;
  margin-bottom: 10px;
}
.hero-meta p {
  font-size: 0.95rem;
  margin-bottom: 24px;
}
.hero-meta-list {
  list-style: none;
  padding: 0;
  margin: 0;
  border-top: 1px solid var(--walker-steel-dark);
}
.hero-meta-list li {
  display: flex;
  justify-content: space-between;
  padding: 14px 0;
  border-bottom: 1px solid var(--walker-steel-dark);
  font-size: 0.88rem;
}
.hero-meta-list li span:first-child {
  font-family: var(--font-head);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--walker-slate);
}
.hero-meta-list li span:last-child {
  font-family: var(--font-head);
  font-weight: 700;
  color: var(--walker-ink);
}

/* ===== STATS BAR ===== */
.stats {
  padding: 0;
  background: var(--walker-navy);
  color: var(--walker-white);
}
.stats .container::before,
.stats .container::after { background: rgba(255,255,255,0.12); }
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  padding: 60px 0;
}
.stat {
  padding: 0 32px;
  border-left: 1px solid rgba(255,255,255,0.12);
}
.stat:first-child { border-left: none; }
.stat .num {
  font-family: var(--font-head);
  font-size: 3.4rem;
  font-weight: 900;
  line-height: 1;
  color: var(--walker-white);
  margin-bottom: 10px;
}
.stat .label {
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: rgba(255,255,255,0.75);
  letter-spacing: 0.02em;
}

/* ===== SECTION HEADER ===== */
.section-header {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 60px;
  margin-bottom: 64px;
  align-items: end;
}
.section-header h2 { margin: 0; }
.section-header p {
  font-size: 1.05rem;
  max-width: 520px;
  margin: 0;
}

/* ===== FEATURE GRID ===== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-top: 1px solid var(--walker-steel-dark);
  border-left: 1px solid var(--walker-steel-dark);
}
.feature {
  padding: 44px 36px;
  border-right: 1px solid var(--walker-steel-dark);
  border-bottom: 1px solid var(--walker-steel-dark);
  position: relative;
  background: var(--walker-white);
  transition: background-color .25s ease;
}
.feature:hover { background: var(--walker-off); }
.feature .num {
  font-family: var(--font-head);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--walker-navy);
  margin-bottom: 28px;
  display: block;
}
.feature .icon {
  width: 44px;
  height: 44px;
  color: var(--walker-navy);
  margin-bottom: 22px;
}
.feature h3 { margin-bottom: 14px; }
.feature p { font-size: 0.95rem; margin-bottom: 20px; }
.feature a.more {
  font-family: var(--font-head);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--walker-navy);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.feature a.more svg { width: 14px; height: 14px; }
.feature a.more:hover { color: var(--walker-blue); }
.feature.highlight {
  background: var(--walker-navy);
  color: var(--walker-white);
}
.feature.highlight:hover { background: var(--walker-navy-deep); }
.feature.highlight h3 { color: var(--walker-white); }
.feature.highlight p { color: rgba(255,255,255,0.78); }
.feature.highlight .num,
.feature.highlight .icon { color: var(--walker-white); }
.feature.highlight a.more { color: var(--walker-white); }
.feature.highlight .usp-tag {
  display: inline-block;
  padding: 4px 10px;
  background: var(--walker-blue);
  color: var(--walker-white);
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 18px;
}

/* ===== USP BLOCK ===== */
.usp {
  background: var(--walker-off);
}
.usp-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.usp-visual {
  position: relative;
  aspect-ratio: 4/5;
  background: var(--walker-navy);
  overflow: hidden;
}
.usp-visual::before,
.usp-visual::after {
  content: "";
  position: absolute;
  background: rgba(255,255,255,0.08);
}
.usp-visual::before {
  top: 0; bottom: 0;
  left: 33.33%;
  width: 1px;
}
.usp-visual::after {
  top: 0; bottom: 0;
  left: 66.66%;
  width: 1px;
}
.usp-visual-inner {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 48px;
  color: var(--walker-white);
}
.usp-visual-inner .hline {
  position: absolute;
  left: 0; right: 0;
  height: 1px;
  background: rgba(255,255,255,0.08);
}
.usp-visual-inner .hline.top { top: 33.33%; }
.usp-visual-inner .hline.bot { top: 66.66%; }
.usp-visual-inner .big-num {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 10rem;
  line-height: 0.85;
  color: var(--walker-white);
  margin: 0;
  letter-spacing: -0.05em;
}
.usp-visual-inner .tag {
  align-self: flex-end;
  font-family: var(--font-head);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 8px 14px;
  background: var(--walker-blue);
}
.usp-content h2 { margin-bottom: 24px; }
.usp-list {
  list-style: none;
  padding: 0;
  margin: 32px 0;
}
.usp-list li {
  display: flex;
  gap: 16px;
  padding: 18px 0;
  border-bottom: 1px solid var(--walker-steel-dark);
  align-items: flex-start;
}
.usp-list li svg {
  width: 22px;
  height: 22px;
  color: var(--walker-blue);
  flex-shrink: 0;
  margin-top: 2px;
}
.usp-list li strong {
  font-family: var(--font-head);
  font-weight: 700;
  color: var(--walker-ink);
  display: block;
  margin-bottom: 4px;
}
.usp-list li span { font-size: 0.92rem; }

/* ===== CTA SPLIT ===== */
.cta-split {
  background: var(--walker-navy);
  color: var(--walker-white);
  padding: 0;
}
.cta-split .container::before,
.cta-split .container::after { background: rgba(255,255,255,0.1); }
.cta-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 80px;
  padding: 100px 0;
  align-items: center;
}
.cta-content h2 {
  color: var(--walker-white);
  margin-bottom: 28px;
  font-size: clamp(1.8rem, 3vw, 2.8rem);
}
.cta-content p {
  color: rgba(255,255,255,0.78);
  font-size: 1.08rem;
  max-width: 520px;
  margin-bottom: 36px;
}
.cta-split .btn-primary {
  background: var(--walker-white);
  color: var(--walker-navy);
  border-color: var(--walker-white);
}
.cta-split .btn-primary:hover {
  background: var(--walker-blue);
  color: var(--walker-white);
  border-color: var(--walker-blue);
}
.cta-split .btn-ghost {
  color: var(--walker-white);
  border-color: rgba(255,255,255,0.4);
}
.cta-split .btn-ghost:hover {
  background: var(--walker-white);
  color: var(--walker-navy);
  border-color: var(--walker-white);
}
.cta-info {
  border-left: 1px solid rgba(255,255,255,0.15);
  padding-left: 48px;
}
.cta-info .label {
  font-family: var(--font-head);
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: rgba(255,255,255,0.6);
  display: block;
  margin-bottom: 8px;
}
.cta-info .big {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 1.5rem;
  color: var(--walker-white);
  margin-bottom: 28px;
  display: block;
}
.cta-info .big a:hover { color: var(--walker-blue); }

/* ===== PAGE HEADER (Subpages) ===== */
.page-header {
  background: var(--walker-off);
  padding: 120px 0 80px;
  border-bottom: 1px solid var(--walker-steel-dark);
}
.page-header .eyebrow { color: var(--walker-navy); }
.page-header h1 { margin-bottom: 24px; }
.page-header p.lead {
  font-size: 1.2rem;
  max-width: 760px;
}
.breadcrumbs {
  list-style: none;
  padding: 0;
  margin: 0 0 40px;
  display: flex;
  gap: 12px;
  font-family: var(--font-head);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--walker-slate);
}
.breadcrumbs li::after {
  content: "/";
  margin-left: 12px;
  color: var(--walker-steel-dark);
}
.breadcrumbs li:last-child::after { content: none; }
.breadcrumbs li:last-child { color: var(--walker-navy); }

/* ===== CONTENT BLOCKS ===== */
.prose {
  max-width: 760px;
}
.prose h2 { margin-top: 2em; margin-bottom: 0.6em; }
.prose h3 { margin-top: 1.8em; margin-bottom: 0.5em; }
.prose p { margin-bottom: 1.2em; font-size: 1.05rem; }
.prose ul {
  padding-left: 0;
  list-style: none;
  margin: 1.5em 0;
}
.prose ul li {
  padding: 14px 0 14px 36px;
  border-bottom: 1px solid var(--walker-steel-dark);
  position: relative;
  font-size: 1rem;
}
.prose ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 22px;
  width: 20px;
  height: 1px;
  background: var(--walker-navy);
}

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}
.two-col.reversed > *:first-child { order: 2; }

.spec-card {
  background: var(--walker-off);
  border: 1px solid var(--walker-steel-dark);
  padding: 40px;
  position: relative;
}
.spec-card .eyebrow { margin-bottom: 20px; }
.spec-card dl {
  margin: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border-top: 1px solid var(--walker-steel-dark);
}
.spec-card dt,
.spec-card dd {
  padding: 16px 0;
  border-bottom: 1px solid var(--walker-steel-dark);
  font-size: 0.9rem;
}
.spec-card dt {
  font-family: var(--font-head);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.72rem;
  color: var(--walker-slate);
}
.spec-card dd {
  margin: 0;
  text-align: right;
  font-family: var(--font-head);
  font-weight: 700;
  color: var(--walker-ink);
}

/* ===== REFERENCES ===== */
.ref-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}
.ref-card {
  background: var(--walker-white);
  border: 1px solid var(--walker-steel-dark);
  display: flex;
  flex-direction: column;
  transition: transform .25s ease;
}
.ref-card:hover { transform: translateY(-4px); }
.ref-card-visual {
  aspect-ratio: 4/3;
  background: var(--walker-navy);
  position: relative;
  overflow: hidden;
}
.ref-card-visual::before,
.ref-card-visual::after {
  content: "";
  position: absolute;
  background: rgba(255,255,255,0.08);
}
.ref-card-visual::before {
  left: 50%;
  top: 0; bottom: 0;
  width: 1px;
}
.ref-card-visual::after {
  top: 50%;
  left: 0; right: 0;
  height: 1px;
}
.ref-card-visual .ref-year {
  position: absolute;
  top: 24px;
  left: 24px;
  font-family: var(--font-head);
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--walker-white);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.ref-card-visual .ref-icon {
  position: absolute;
  right: 24px;
  bottom: 24px;
  width: 40px;
  height: 40px;
  color: rgba(255,255,255,0.5);
}
.ref-card-body {
  padding: 28px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.ref-card-body .tag {
  font-family: var(--font-head);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--walker-navy);
  margin-bottom: 12px;
}
.ref-card-body h3 {
  font-size: 1.25rem;
  margin-bottom: 10px;
}
.ref-card-body p {
  font-size: 0.92rem;
  flex: 1;
  margin-bottom: 16px;
}
.ref-card-body .more {
  font-family: var(--font-head);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--walker-navy);
  display: inline-flex;
  gap: 6px;
  align-items: center;
}
.ref-card-body .more svg { width: 14px; height: 14px; }

/* ===== CONTACT ===== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
}
.contact-info .eyebrow { margin-bottom: 24px; }
.contact-info h2 { margin-bottom: 28px; }
.contact-blocks {
  margin-top: 48px;
  border-top: 1px solid var(--walker-steel-dark);
}
.contact-block {
  padding: 28px 0;
  border-bottom: 1px solid var(--walker-steel-dark);
  display: flex;
  gap: 20px;
}
.contact-block svg {
  width: 22px;
  height: 22px;
  color: var(--walker-navy);
  flex-shrink: 0;
  margin-top: 4px;
}
.contact-block .label {
  font-family: var(--font-head);
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--walker-slate);
  display: block;
  margin-bottom: 4px;
}
.contact-block strong {
  font-family: var(--font-head);
  font-weight: 700;
  color: var(--walker-ink);
  font-size: 1.05rem;
}
.contact-form {
  background: var(--walker-off);
  padding: 48px;
  border: 1px solid var(--walker-steel-dark);
}
.contact-form h3 { margin-bottom: 28px; }
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 16px;
}
.form-field { margin-bottom: 16px; }
.form-field label {
  display: block;
  font-family: var(--font-head);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--walker-slate);
  margin-bottom: 6px;
}
.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid var(--walker-steel-dark);
  background: var(--walker-white);
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--walker-ink);
  border-radius: 0;
  transition: border-color .2s ease;
}
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--walker-navy);
}
.form-field textarea { resize: vertical; min-height: 120px; }

/* ===== FOOTER ===== */
.site-footer {
  background: var(--walker-ink);
  color: rgba(255,255,255,0.75);
  padding: 80px 0 32px;
}
.site-footer .container::before,
.site-footer .container::after { background: rgba(255,255,255,0.1); }
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 60px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.footer-brand {
  max-width: 340px;
}
.footer-brand .logo-mark {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 1.15rem;
  color: var(--walker-white);
  margin-bottom: 20px;
}
.footer-brand .logo-mark .box {
  background: var(--walker-blue);
  color: var(--walker-white);
  width: 38px;
  height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.footer-brand p { font-size: 0.92rem; margin-bottom: 20px; }
.footer-col h4 {
  font-family: var(--font-head);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--walker-white);
  margin-bottom: 20px;
}
.footer-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.footer-col li {
  padding: 6px 0;
  font-size: 0.92rem;
}
.footer-col li a:hover { color: var(--walker-white); }
.footer-bottom {
  padding-top: 32px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
  font-size: 0.82rem;
  color: rgba(255,255,255,0.5);
}
.footer-bottom a:hover { color: var(--walker-white); }
.footer-bottom .legal { display: flex; gap: 24px; }

/* ===== MOBILE MENU ===== */
.nav-menu-mobile {
  display: none;
  position: fixed;
  top: 0; left: 0;
  width: 100%;
  height: 100vh;
  background: var(--walker-navy);
  color: var(--walker-white);
  padding: 100px 40px 40px;
  z-index: 200;
  flex-direction: column;
  gap: 0;
}
.nav-menu-mobile.open { display: flex; }
.nav-menu-mobile a {
  padding: 22px 0;
  border-bottom: 1px solid rgba(255,255,255,0.15);
  font-family: var(--font-head);
  font-size: 1.3rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--walker-white);
}
.nav-close {
  position: absolute;
  top: 24px;
  right: 40px;
  background: transparent;
  border: 1px solid rgba(255,255,255,0.4);
  color: var(--walker-white);
  padding: 10px;
}
.nav-close svg { width: 20px; height: 20px; }

/* ===== RESPONSIVE ===== */
@media (max-width: 968px) {
  :root { --section-py: 72px; --gutter: 28px; }
  .hero { padding: 80px 0 72px; }
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 56px;
  }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 40px 0; padding: 48px 0; }
  .stat { padding: 0 20px; border-left: 1px solid rgba(255,255,255,0.12); }
  .stat:nth-child(3) { border-left: none; }
  .section-header { grid-template-columns: 1fr; gap: 20px; margin-bottom: 48px; }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .usp-grid { grid-template-columns: 1fr; gap: 56px; }
  .usp-visual-inner .big-num { font-size: 7rem; }
  .cta-grid { grid-template-columns: 1fr; gap: 48px; padding: 72px 0; }
  .cta-info { border-left: none; padding-left: 0; border-top: 1px solid rgba(255,255,255,0.15); padding-top: 32px; }
  .ref-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; gap: 48px; }
  .two-col { grid-template-columns: 1fr; gap: 48px; }
  .two-col.reversed > *:first-child { order: 0; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
  .nav-menu { display: none; }
  .nav-toggle { display: inline-flex; }
  .nav-phone { display: none; }
}

@media (max-width: 768px) {
  :root { --section-py: 64px; --gutter: 20px; }
  .container::before { left: 12px; }
  .container::after { right: 12px; }
  .hero-content p.lead { font-size: 1.05rem; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn { justify-content: center; }
  .features-grid { grid-template-columns: 1fr; }
  .ref-grid { grid-template-columns: 1fr; }
  .contact-form { padding: 32px 24px; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; align-items: flex-start; gap: 12px; }
}

@media (max-width: 480px) {
  h1 { font-size: 2.2rem; }
  h2 { font-size: 1.7rem; }
  .stat .num { font-size: 2.4rem; }
  .usp-visual-inner { padding: 28px; }
  .usp-visual-inner .big-num { font-size: 5rem; }
  .spec-card { padding: 28px 24px; }
  .spec-card dl { grid-template-columns: 1fr; }
  .spec-card dd { text-align: left; }
}