/* ============================================================
   SYSTENO DESIGN SYSTEM
   Premium B2B — Architectural · Precise · Mature
   v3 — Elevation Pass: Readability · Hierarchy · Contrast
   ============================================================ */

/* --- RESET & BASE --- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  /* Core Palette */
  --primary: rgb(35, 78, 90);
  --primary-deep: rgb(22, 52, 62);
  --primary-light: rgb(45, 98, 112);
  --secondary: rgb(12, 153, 149);
  --secondary-muted: rgba(12, 153, 149, 0.15);
  --secondary-glow: rgba(12, 153, 149, 0.08);

  /* Surface System */
  --surface-light: rgb(232, 232, 232);
  --surface-dark: rgb(89, 89, 89);
  --surface-white: #fafafa;
  --surface-warm: #f4f3f1;
  --surface-slate: #e8e7e5;
  --surface-deep: rgb(28, 38, 42);
  --surface-midnight: rgb(18, 26, 30);

  /* Text Hierarchy — READABILITY UPGRADE */
  --text-primary: rgb(24, 28, 30);
  --text-secondary: rgb(58, 66, 72);
  --text-tertiary: rgb(100, 108, 114);
  --text-inverse: #f7f6f4;
  --text-inverse-muted: rgba(247, 246, 244, 0.75);
  --text-inverse-subtle: rgba(247, 246, 244, 0.55);

  /* Borders & Dividers */
  --border-subtle: rgba(35, 78, 90, 0.08);
  --border-light: rgba(35, 78, 90, 0.12);
  --border-medium: rgba(35, 78, 90, 0.2);
  --border-inverse: rgba(255, 255, 255, 0.12);
  --border-inverse-light: rgba(255, 255, 255, 0.07);

  /* Typographic Scale — AUTHORITY UPGRADE */
  --font-display: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', monospace;

  --text-hero: clamp(3.4rem, 6.5vw, 6.2rem);
  --text-display: clamp(2.6rem, 4.5vw, 4.4rem);
  --text-heading: clamp(1.9rem, 3.2vw, 3rem);
  --text-subheading: clamp(1.3rem, 2.1vw, 1.85rem);
  --text-body-lg: 1.1875rem;
  --text-body: 1rem;
  --text-caption: 0.9375rem;
  --text-label: 0.8125rem;
  --text-micro: 0.75rem;

  /* Spacing Scale */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;
  --space-3xl: 8rem;
  --space-4xl: 12rem;

  /* Grid */
  --grid-max: 1320px;
  --grid-narrow: 880px;
  --grid-gap: 2rem;
  --grid-padding: clamp(1.5rem, 4vw, 4rem);

  /* Motion */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --duration-fast: 200ms;
  --duration-base: 400ms;
  --duration-slow: 700ms;

  /* Elevation */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05), 0 1px 2px rgba(0, 0, 0, 0.07);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.07), 0 2px 6px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.1), 0 4px 14px rgba(0, 0, 0, 0.05);
  --shadow-glow: 0 0 48px rgba(12, 153, 149, 0.12);
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.65;
  color: var(--text-primary);
  background: var(--surface-white);
  overflow-x: hidden;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

/* --- TYPOGRAPHY — REFINED --- */

.t-hero {
  font-size: var(--text-hero);
  font-weight: 300;
  line-height: 1.05;
  letter-spacing: -0.03em;
  font-feature-settings: 'ss01' on, 'ss03' on;
}

.t-display {
  font-size: var(--text-display);
  font-weight: 300;
  line-height: 1.1;
  letter-spacing: -0.025em;
}

.t-heading {
  font-size: var(--text-heading);
  font-weight: 400;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.t-subheading {
  font-size: var(--text-subheading);
  font-weight: 400;
  line-height: 1.35;
  letter-spacing: -0.01em;
}

.t-body-lg {
  font-size: var(--text-body-lg);
  line-height: 1.75;
}

.t-body {
  font-size: var(--text-body);
  line-height: 1.65;
}

.t-caption {
  font-size: var(--text-caption);
  line-height: 1.55;
  color: var(--text-secondary);
}

.t-label {
  font-size: var(--text-label);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  line-height: 1.2;
}

.t-micro {
  font-size: var(--text-micro);
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.t-mono {
  font-family: var(--font-mono);
  font-size: var(--text-caption);
  letter-spacing: 0;
  font-weight: 400;
}

/* --- LAYOUT --- */

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

.container--narrow {
  max-width: var(--grid-narrow);
}

.section {
  padding: var(--space-3xl) 0;
}

.section--compact {
  padding: var(--space-2xl) 0;
}

.section--spacious {
  padding: var(--space-4xl) 0;
}

/* --- NAVIGATION --- */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 0 var(--grid-padding);
  transition: background var(--duration-base) var(--ease-out),
    border-color var(--duration-base) var(--ease-out),
    backdrop-filter var(--duration-base) var(--ease-out);
  background: transparent;
  border-bottom: 1px solid transparent;
}

.nav.is-scrolled {
  background: rgba(250, 250, 250, 0.94);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  border-bottom-color: var(--border-subtle);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.03);
}

.nav__inner {
  max-width: var(--grid-max);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
  transition: height var(--duration-base) var(--ease-out);
}

.nav.is-scrolled .nav__inner {
  height: 64px;
}

.nav__logo {
  display: flex;
  align-items: center;
  z-index: 10;
}

.nav__logo-img {
  height: 40px;
  width: auto;
  filter: brightness(0) invert(1);
  transition: filter var(--duration-base) var(--ease-out);
}

.nav.is-scrolled .nav__logo-img {
  filter: none;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 2.75rem;
  list-style: none;
}

.nav__link {
  font-size: var(--text-caption);
  font-weight: 500;
  letter-spacing: 0.015em;
  color: rgba(255, 255, 255, 0.85);
  transition: color var(--duration-fast) var(--ease-out);
  position: relative;
}

.nav.is-scrolled .nav__link {
  color: var(--text-secondary);
}

.nav__link:hover,
.nav.is-scrolled .nav__link:hover {
  color: var(--secondary);
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1.5px;
  background: var(--secondary);
  transition: width var(--duration-base) var(--ease-out);
}

.nav__link:hover::after {
  width: 100%;
}

.nav__cta {
  font-size: var(--text-caption);
  font-weight: 600;
  letter-spacing: 0.015em;
  padding: 0.6875rem 1.75rem;
  border: 1.5px solid rgba(255, 255, 255, 0.3);
  border-radius: 3px;
  color: #fff;
  transition: all var(--duration-fast) var(--ease-out);
}

.nav.is-scrolled .nav__cta {
  color: var(--primary);
  border-color: var(--border-medium);
}

.nav__cta:hover {
  background: var(--secondary);
  border-color: var(--secondary);
  color: #fff;
}

.nav__mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  padding: 4px 0;
  z-index: 10;
}

.nav__mobile-toggle span {
  display: block;
  width: 100%;
  height: 1.5px;
  background: var(--text-inverse);
  transition: all var(--duration-base) var(--ease-out);
}

.nav.is-scrolled .nav__mobile-toggle span {
  background: var(--text-primary);
}

/* Mobile Nav Open State */
.nav.is-open .nav__mobile-toggle span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}

.nav.is-open .nav__mobile-toggle span:nth-child(2) {
  opacity: 0;
}

.nav.is-open .nav__mobile-toggle span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* --- HERO — ELEVATED --- */

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: flex-end;
  background: var(--primary-deep);
  overflow: hidden;
  padding-bottom: var(--space-3xl);
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero__bg-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 40%;
}

.hero__bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(165deg,
      rgba(22, 52, 62, 0.45) 0%,
      rgba(22, 52, 62, 0.58) 25%,
      rgba(22, 52, 62, 0.78) 55%,
      rgba(22, 52, 62, 0.94) 80%,
      rgba(22, 52, 62, 1) 100%);
  z-index: 1;
}

.hero__bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 45% at 75% 25%, rgba(12, 153, 149, 0.08) 0%, transparent 65%),
    radial-gradient(ellipse 50% 50% at 15% 85%, rgba(35, 78, 90, 0.2) 0%, transparent 55%),
    radial-gradient(circle at 90% 60%, rgba(12, 153, 149, 0.04) 0%, transparent 40%);
  z-index: 2;
}

.hero__grid-pattern {
  position: absolute;
  inset: 0;
  z-index: 1;
  opacity: 0.025;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.5) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.5) 1px, transparent 1px);
  background-size: 80px 80px;
}

.hero__content {
  position: relative;
  z-index: 5;
  max-width: var(--grid-max);
  margin: 0 auto;
  padding: 0 var(--grid-padding);
  width: 100%;
}

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: var(--space-lg);
}

.hero__eyebrow-line {
  width: 56px;
  height: 1.5px;
  background: var(--secondary);
}

.hero__eyebrow-text {
  font-size: var(--text-label);
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--secondary);
}

.hero__title {
  font-size: var(--text-hero);
  font-weight: 300;
  line-height: 1.02;
  letter-spacing: -0.035em;
  color: var(--text-inverse);
  max-width: 960px;
  margin-bottom: var(--space-lg);
}

.hero__title strong {
  font-weight: 600;
}

.hero__subtitle {
  font-size: clamp(1.0625rem, 1.5vw, 1.25rem);
  line-height: 1.7;
  color: var(--text-inverse-muted);
  max-width: 600px;
  margin-bottom: var(--space-xl);
}

.hero__actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.hero__stats {
  position: absolute;
  right: var(--grid-padding);
  bottom: var(--space-3xl);
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
  z-index: 5;
}

.hero__stat {
  text-align: right;
}

.hero__stat-value {
  font-size: clamp(2.4rem, 4vw, 3.6rem);
  font-weight: 300;
  letter-spacing: -0.035em;
  color: var(--text-inverse);
  line-height: 1;
  margin-bottom: 0.375rem;
}

.hero__stat-value .accent {
  color: var(--secondary);
}

.hero__stat-label {
  font-size: var(--text-micro);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-inverse-muted);
}

.hero__scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 5;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  opacity: 0.5;
}

.hero__scroll-line {
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, var(--secondary), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {

  0%,
  100% {
    opacity: 0.3;
    transform: scaleY(0.6);
  }

  50% {
    opacity: 1;
    transform: scaleY(1);
  }
}

/* --- BUTTONS — ELEVATED --- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-size: var(--text-caption);
  font-weight: 600;
  letter-spacing: 0.02em;
  padding: 1rem 2.25rem;
  border-radius: 3px;
  transition: all var(--duration-fast) var(--ease-out);
  position: relative;
  overflow: hidden;
}

.btn--primary {
  background: var(--secondary);
  color: #fff;
  border: 1.5px solid var(--secondary);
  box-shadow: 0 2px 8px rgba(12, 153, 149, 0.2);
}

.btn--primary:hover {
  background: rgb(10, 133, 130);
  border-color: rgb(10, 133, 130);
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(12, 153, 149, 0.35);
}

.btn--outline {
  background: transparent;
  color: var(--text-inverse);
  border: 1.5px solid rgba(255, 255, 255, 0.25);
}

.btn--outline:hover {
  border-color: var(--secondary);
  color: var(--secondary);
}

.btn--outline-dark {
  background: transparent;
  color: var(--primary);
  border: 1.5px solid var(--border-medium);
}

.btn--outline-dark:hover {
  border-color: var(--secondary);
  color: var(--secondary);
}

.btn__arrow {
  width: 16px;
  height: 16px;
  transition: transform var(--duration-fast) var(--ease-out);
}

.btn:hover .btn__arrow {
  transform: translateX(4px);
}

/* --- SECTION COMPONENTS — STRONGER HIERARCHY --- */

.section-header {
  margin-bottom: var(--space-2xl);
}

.section-header--center {
  text-align: center;
}

.section-header__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: var(--space-md);
}

.section-header__eyebrow-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--secondary);
}

.section-header__eyebrow-text {
  font-size: var(--text-label);
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--secondary);
}

.section-header__title {
  font-size: var(--text-display);
  font-weight: 300;
  line-height: 1.08;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  margin-bottom: var(--space-md);
}

.section-header__title strong {
  font-weight: 600;
}

.section-header__desc {
  font-size: var(--text-body-lg);
  line-height: 1.75;
  color: var(--text-secondary);
  max-width: 660px;
}

.section-header--center .section-header__desc {
  margin: 0 auto;
}

/* Inverted (Dark backgrounds) — READABILITY FIXED */
.on-dark .section-header__title {
  color: var(--text-inverse);
}

.on-dark .section-header__desc {
  color: var(--text-inverse-muted);
}

/* --- PROPOSITION SECTION --- */

.proposition {
  background: var(--surface-white);
}

.proposition__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
}

.proposition__visual {
  position: relative;
  aspect-ratio: 4/3;
  background: var(--surface-warm);
  border-radius: 6px;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.proposition__visual-inner {
  position: absolute;
  inset: 0;
}

.proposition__photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.9) contrast(1.05);
  transition: transform var(--duration-slow) var(--ease-out);
}

.proposition__visual:hover .proposition__photo {
  transform: scale(1.03);
}

.proposition__content {
  padding-right: var(--space-lg);
}

.proposition__lead {
  font-size: var(--text-body-lg);
  line-height: 1.75;
  color: var(--text-secondary);
  margin-bottom: var(--space-lg);
}

.proposition__capabilities {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.capability {
  display: flex;
  gap: var(--space-md);
  padding: var(--space-md) calc(var(--space-md) + 0.25rem);
  border: 1px solid var(--border-light);
  border-radius: 4px;
  transition: all var(--duration-base) var(--ease-out);
}

.capability:hover {
  border-color: var(--secondary-muted);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.capability__icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--secondary-glow);
  border-radius: 4px;
}

.capability__icon svg {
  width: 22px;
  height: 22px;
  color: var(--secondary);
}

.capability__content h4 {
  font-size: var(--text-body);
  font-weight: 700;
  margin-bottom: 0.375rem;
  color: var(--text-primary);
}

.capability__content p {
  font-size: var(--text-caption);
  line-height: 1.65;
  color: var(--text-secondary);
}

/* --- GEBÄUDE NAVIGATOR (Dark feature) --- */

.navigator-section {
  background: var(--surface-deep);
  position: relative;
  overflow: hidden;
}

.navigator-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 40% at 80% 20%, rgba(12, 153, 149, 0.06) 0%, transparent 70%);
}

.navigator__grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--space-3xl);
  align-items: center;
  position: relative;
  z-index: 1;
}

.navigator__badges {
  display: flex;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
  flex-wrap: wrap;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 1rem;
  font-size: var(--text-micro);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-radius: 3px;
  border: 1px solid var(--border-inverse);
  color: var(--text-inverse-muted);
}

.badge--accent {
  border-color: rgba(12, 153, 149, 0.4);
  color: var(--secondary);
  background: rgba(12, 153, 149, 0.06);
}

.badge__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--secondary);
}

.navigator__title {
  font-size: var(--text-heading);
  font-weight: 300;
  line-height: 1.12;
  letter-spacing: -0.025em;
  color: var(--text-inverse);
  margin-bottom: var(--space-md);
}

.navigator__title strong {
  font-weight: 600;
  color: var(--secondary);
}

.navigator__desc {
  font-size: var(--text-body-lg);
  line-height: 1.75;
  color: var(--text-inverse-muted);
  margin-bottom: var(--space-xl);
}

.navigator__metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border-inverse);
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: var(--space-xl);
}

.metric {
  background: rgba(28, 38, 42, 0.95);
  padding: var(--space-md) var(--space-md);
  text-align: center;
}

.metric__value {
  font-size: clamp(1.75rem, 2.8vw, 2.4rem);
  font-weight: 400;
  letter-spacing: -0.025em;
  color: var(--secondary);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.metric__label {
  font-size: var(--text-micro);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-inverse-muted);
  margin-bottom: 0.25rem;
}

.metric__sub {
  font-size: var(--text-micro);
  color: var(--text-inverse-subtle);
  letter-spacing: 0.02em;
}

.navigator__visual {
  position: relative;
}

.navigator__photo-container {
  border-radius: 6px;
  overflow: hidden;
  margin-bottom: var(--space-md);
  box-shadow: var(--shadow-lg);
}

.navigator__photo {
  width: 100%;
  height: auto;
  display: block;
  filter: saturate(0.9) contrast(1.08);
}

.navigator__interface {
  background: rgba(28, 38, 42, 0.75);
  border: 1px solid var(--border-inverse);
  border-radius: 6px;
  padding: var(--space-md);
  backdrop-filter: blur(12px);
}

.navigator__interface-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: var(--space-sm);
  border-bottom: 1px solid var(--border-inverse-light);
  margin-bottom: var(--space-md);
}

.navigator__interface-title {
  font-size: var(--text-caption);
  font-weight: 600;
  color: var(--text-inverse);
}

.navigator__interface-status {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: var(--text-micro);
  font-weight: 600;
  color: var(--secondary);
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--secondary);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {

  0%,
  100% {
    opacity: 1;
  }

  50% {
    opacity: 0.4;
  }
}

.navigator__interface-rows {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.interface-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  background: rgba(255, 255, 255, 0.04);
  border-radius: 4px;
  border: 1px solid var(--border-inverse-light);
  transition: background var(--duration-fast) var(--ease-out);
}

.interface-row:hover {
  background: rgba(255, 255, 255, 0.07);
}

.interface-row__left {
  display: flex;
  align-items: center;
  gap: 0.875rem;
}

.interface-row__icon {
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(12, 153, 149, 0.12);
  border-radius: 4px;
}

.interface-row__icon svg {
  width: 16px;
  height: 16px;
  color: var(--secondary);
}

.interface-row__label {
  font-size: var(--text-caption);
  font-weight: 500;
  color: var(--text-inverse);
}

.interface-row__sub {
  font-size: var(--text-micro);
  font-weight: 600;
  color: var(--text-inverse-subtle);
  margin-top: 2px;
  letter-spacing: 0.08em;
}

.interface-row__value {
  font-family: var(--font-mono);
  font-size: var(--text-caption);
  font-weight: 500;
  color: var(--secondary);
}

/* --- PROCESS SECTION — REFINED --- */

.process {
  background: var(--surface-warm);
}

.process__timeline {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  position: relative;
}

.process__timeline::before {
  content: '';
  position: absolute;
  top: 48px;
  left: calc(100% / 6);
  right: calc(100% / 6);
  height: 1.5px;
  background: var(--border-medium);
}

.process__step {
  padding: 0 var(--space-lg);
  text-align: center;
  position: relative;
}

.process__step-number {
  width: 60px;
  height: 60px;
  margin: 0 auto var(--space-md);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--primary);
  border-radius: 50%;
  font-size: var(--text-body-lg);
  font-weight: 700;
  color: var(--primary);
  background: var(--surface-warm);
  position: relative;
  z-index: 1;
  transition: all var(--duration-base) var(--ease-out);
}

.process__step:hover .process__step-number {
  border-color: var(--secondary);
  color: var(--secondary);
  box-shadow: 0 0 0 8px var(--secondary-glow);
}

.process__step-title {
  font-size: var(--text-body-lg);
  font-weight: 700;
  margin-bottom: 0.625rem;
  color: var(--text-primary);
}

.process__step-desc {
  font-size: var(--text-caption);
  line-height: 1.65;
  color: var(--text-secondary);
}

/* --- ADVANTAGES SECTION (Dark) — CONTRAST FIXED --- */

.advantages {
  background: var(--surface-dark);
  position: relative;
}

.advantages__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: rgba(255, 255, 255, 0.08);
}

.advantage {
  background: var(--surface-dark);
  padding: var(--space-xl) calc(var(--space-xl) + 0.5rem);
  transition: background var(--duration-base) var(--ease-out);
}

.advantage:hover {
  background: rgba(105, 105, 105, 0.95);
}

.advantage__number {
  font-family: var(--font-mono);
  font-size: var(--text-label);
  font-weight: 500;
  color: var(--secondary);
  margin-bottom: var(--space-sm);
  letter-spacing: 0.1em;
}

.advantage__title {
  font-size: var(--text-subheading);
  font-weight: 500;
  letter-spacing: -0.01em;
  color: #fff;
  margin-bottom: 0.875rem;
}

.advantage__desc {
  font-size: var(--text-caption);
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.8);
}

/* --- HEAT SUPPLY SECTION --- */

.supply {
  background: var(--surface-white);
}

.supply__grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: var(--space-3xl);
  align-items: start;
}

.supply__services {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.supply__service {
  padding: var(--space-lg) 0;
  border-bottom: 1px solid var(--border-light);
  cursor: default;
  transition: border-color var(--duration-fast) var(--ease-out);
}

.supply__service:first-child {
  padding-top: 0;
}

.supply__service:hover {
  border-color: var(--secondary-muted);
}

.supply__service-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.5rem;
}

.supply__service-title {
  font-size: var(--text-body-lg);
  font-weight: 600;
  color: var(--text-primary);
}

.supply__service-arrow {
  width: 20px;
  height: 20px;
  color: var(--text-tertiary);
  transition: all var(--duration-fast) var(--ease-out);
}

.supply__service:hover .supply__service-arrow {
  color: var(--secondary);
  transform: translateX(4px);
}

.supply__service-desc {
  font-size: var(--text-caption);
  line-height: 1.65;
  color: var(--text-secondary);
  max-width: 540px;
}

.supply__map-card {
  background: var(--surface-warm);
  border-radius: 6px;
  overflow: hidden;
  position: sticky;
  top: 96px;
  box-shadow: var(--shadow-md);
}

.supply__map-visual {
  aspect-ratio: 16/10;
  background: var(--primary);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.supply__map-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.8) contrast(1.1);
}

.supply__map-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(22, 52, 62, 0.15) 0%, rgba(22, 52, 62, 0.85) 100%);
}

.supply__map-label {
  position: absolute;
  bottom: var(--space-md);
  left: var(--space-md);
  z-index: 2;
}

.supply__map-label h4 {
  font-size: var(--text-body-lg);
  font-weight: 600;
  color: #fff;
}

.supply__map-label p {
  font-size: var(--text-micro);
  color: rgba(255, 255, 255, 0.8);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 500;
}

.supply__map-details {
  padding: var(--space-lg);
}

.supply__map-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-sm);
}

.supply__map-stat {
  padding: var(--space-sm) calc(var(--space-sm) + 0.25rem);
  background: var(--surface-white);
  border-radius: 4px;
  border: 1px solid var(--border-subtle);
}

.supply__map-stat-value {
  font-size: var(--text-subheading);
  font-weight: 500;
  letter-spacing: -0.015em;
  color: var(--primary);
  margin-bottom: 0.1875rem;
}

.supply__map-stat-label {
  font-size: var(--text-micro);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-secondary);
}

/* --- TRUST SECTION — ELEVATED --- */

.trust {
  background: var(--surface-light);
}

.trust__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
}

.trust__item {
  text-align: center;
  padding: var(--space-xl) var(--space-md);
  border-radius: 6px;
  transition: all var(--duration-base) var(--ease-out);
}

.trust__item:hover {
  background: rgba(255, 255, 255, 0.6);
}

.trust__icon {
  width: 52px;
  height: 52px;
  margin: 0 auto var(--space-md);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--primary);
  border-radius: 50%;
  color: var(--primary);
  transition: all var(--duration-base) var(--ease-out);
}

.trust__item:hover .trust__icon {
  border-color: var(--secondary);
  color: var(--secondary);
  box-shadow: 0 0 0 8px var(--secondary-glow);
}

.trust__icon svg {
  width: 24px;
  height: 24px;
}

.trust__item-title {
  font-size: var(--text-body-lg);
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.trust__item-desc {
  font-size: var(--text-caption);
  line-height: 1.65;
  color: var(--text-secondary);
}

/* --- CONTACT SECTION --- */

.contact {
  background: var(--primary-deep);
  position: relative;
  overflow: hidden;
}

.contact::before {
  content: '';
  position: absolute;
  top: -100px;
  right: -100px;
  width: 400px;
  height: 400px;
  border: 1px solid var(--border-inverse-light);
  border-radius: 50%;
}

.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  position: relative;
  z-index: 1;
}

.contact__info {
  padding-right: var(--space-xl);
}

.contact__detail {
  padding: var(--space-lg) 0;
  border-bottom: 1px solid var(--border-inverse-light);
}

.contact__detail:first-child {
  padding-top: 0;
  border-top: none;
}

.contact__detail-label {
  font-size: var(--text-micro);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-inverse-muted);
  margin-bottom: 0.5rem;
}

.contact__detail-value {
  font-size: var(--text-body-lg);
  color: var(--text-inverse);
  line-height: 1.6;
}

.contact__detail-value a {
  transition: color var(--duration-fast) var(--ease-out);
}

.contact__detail-value a:hover {
  color: var(--secondary);
}

.contact__form {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-inverse);
  border-radius: 6px;
  padding: var(--space-xl);
}

.contact__form-title {
  font-size: var(--text-subheading);
  font-weight: 500;
  color: var(--text-inverse);
  margin-bottom: var(--space-lg);
}

.form-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-sm);
  margin-bottom: var(--space-sm);
}

.form-row--full {
  grid-template-columns: 1fr;
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: 0.4375rem;
}

.form-field label {
  font-size: var(--text-micro);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-inverse-muted);
}

.form-field input,
.form-field textarea,
.form-field select {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-inverse);
  border-radius: 3px;
  padding: 0.8125rem 1.125rem;
  font-family: var(--font-body);
  font-size: var(--text-caption);
  color: var(--text-inverse);
  transition: border-color var(--duration-fast) var(--ease-out),
    background var(--duration-fast) var(--ease-out);
  outline: none;
  width: 100%;
}

.form-field input::placeholder,
.form-field textarea::placeholder {
  color: var(--text-inverse-subtle);
}

.form-field input:focus,
.form-field textarea:focus,
.form-field select:focus {
  border-color: var(--secondary);
  background: rgba(255, 255, 255, 0.08);
}

.form-field textarea {
  min-height: 140px;
  resize: vertical;
}

.form-field select {
  appearance: none;
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12' fill='none'%3E%3Cpath d='M3 5l3 3 3-3' stroke='%23888' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
}

.form-submit {
  margin-top: var(--space-md);
}

/* --- FOOTER --- */

.footer {
  background: var(--surface-midnight);
  padding: var(--space-2xl) 0 var(--space-md);
}

.footer__upper {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: var(--space-2xl);
  padding-bottom: var(--space-2xl);
  border-bottom: 1px solid var(--border-inverse-light);
  margin-bottom: var(--space-md);
}

.footer__brand-logo {
  display: flex;
  align-items: center;
  margin-bottom: var(--space-md);
}

.footer__brand-logo-img {
  height: 34px;
  width: auto;
  filter: brightness(0) invert(1);
  opacity: 0.85;
}

.footer__brand-desc {
  font-size: var(--text-caption);
  line-height: 1.65;
  color: var(--text-inverse-muted);
  margin-bottom: var(--space-md);
}

.footer__brand-tagline {
  font-family: var(--font-mono);
  font-size: var(--text-micro);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--secondary);
}

.footer__col-title {
  font-size: var(--text-micro);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-inverse-muted);
  margin-bottom: var(--space-md);
}

.footer__links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer__links a {
  font-size: var(--text-caption);
  color: rgba(255, 255, 255, 0.55);
  transition: color var(--duration-fast) var(--ease-out);
}

.footer__links a:hover {
  color: var(--secondary);
}

.footer__lower {
  padding: var(--space-md) 0;
  border-top: 1px solid var(--border-inverse-light);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer__legal {
  font-size: var(--text-micro);
  color: rgba(255, 255, 255, 0.35);
  letter-spacing: 0.05em;
}

.footer__legal-links {
  display: flex;
  gap: var(--space-md);
}

.footer__legal-links a {
  font-size: var(--text-micro);
  color: rgba(255, 255, 255, 0.35);
  transition: color var(--duration-fast) var(--ease-out);
}

.footer__legal-links a:hover {
  color: var(--secondary);
}

/* --- EXPERTS SECTION --- */

.experts__grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--space-3xl);
  align-items: center;
}

.experts__text {
  font-size: var(--text-body-lg);
  line-height: 1.75;
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
}

.experts__text:last-of-type {
  margin-bottom: 0;
}

.experts__visual {
  position: relative;
  border-radius: 6px;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.experts__photo {
  width: 100%;
  height: auto;
  display: block;
  filter: saturate(0.9) contrast(1.05);
  transition: transform var(--duration-slow) var(--ease-out);
}

.experts__visual:hover .experts__photo {
  transform: scale(1.03);
}

/* --- CTA SECTION — STRONG PRESENCE --- */

.cta-section {
  background: var(--primary);
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 50% 80% at 80% 50%, rgba(12, 153, 149, 0.14) 0%, transparent 70%);
}

.cta-section__inner {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 740px;
  margin: 0 auto;
}

.cta-section__title {
  font-size: var(--text-heading);
  font-weight: 400;
  letter-spacing: -0.025em;
  color: #fff;
  margin-bottom: var(--space-md);
}

.cta-section__text {
  font-size: var(--text-body-lg);
  line-height: 1.75;
  color: rgba(255, 255, 255, 0.82);
  margin-bottom: var(--space-xl);
}

/* --- PROCESS STEP IMAGES --- */

.process__step-image {
  width: 100%;
  height: auto;
  max-height: 220px;
  object-fit: cover;
  border-radius: 6px;
  margin-top: var(--space-md);
  filter: saturate(0.85) contrast(1.05);
  transition: transform var(--duration-slow) var(--ease-out);
  box-shadow: var(--shadow-sm);
}

.process__step:hover .process__step-image {
  transform: scale(1.02);
}

/* --- SCROLL ANIMATIONS --- */

[data-reveal] {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity var(--duration-slow) var(--ease-out),
    transform var(--duration-slow) var(--ease-out);
}

[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

[data-reveal]:nth-child(2) {
  transition-delay: 80ms;
}

[data-reveal]:nth-child(3) {
  transition-delay: 160ms;
}

[data-reveal]:nth-child(4) {
  transition-delay: 240ms;
}

/* --- MOBILE NAV OVERLAY --- */

.nav__overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--primary-deep);
  z-index: 5;
  align-items: center;
  justify-content: center;
}

.nav.is-open .nav__overlay {
  display: flex;
}

.nav__overlay .nav__links {
  flex-direction: column;
  gap: var(--space-lg);
  text-align: center;
}

.nav__overlay .nav__link {
  font-size: var(--text-subheading);
  color: var(--text-inverse);
}

.nav__overlay .nav__cta {
  margin-top: var(--space-md);
  font-size: var(--text-body);
  padding: 0.875rem 2.5rem;
  color: var(--text-inverse);
  border-color: rgba(255, 255, 255, 0.25);
}

/* --- RESPONSIVE --- */

@media (max-width: 1024px) {

  .proposition__grid,
  .navigator__grid,
  .supply__grid,
  .contact__grid,
  .experts__grid {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }

  .footer__upper {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
  }

  .hero__stats {
    position: relative;
    right: auto;
    bottom: auto;
    flex-direction: row;
    gap: var(--space-xl);
    margin-top: var(--space-2xl);
  }

  .hero__stat {
    text-align: left;
  }

  .advantages__grid {
    grid-template-columns: 1fr;
  }

  .trust__grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .supply__map-card {
    position: static;
  }

  .proposition__content {
    padding-right: 0;
  }

  .contact__info {
    padding-right: 0;
  }
}

/* --- TABLET / SMALL LAPTOP --- */

@media (max-width: 768px) {

  /* --- NAV: Mobile-first header --- */
  .nav__links-desktop {
    display: none;
  }

  .nav__mobile-toggle {
    display: flex;
  }

  .nav__inner {
    height: 64px;
  }

  .nav.is-scrolled .nav__inner {
    height: 56px;
  }

  .nav__logo-img {
    height: 32px;
  }

  /* --- HERO: Composed for mobile --- */
  .hero {
    min-height: 100svh;
    padding-bottom: var(--space-xl);
    align-items: flex-end;
  }

  .hero__title {
    font-size: clamp(2.2rem, 8vw, 3.2rem);
    letter-spacing: -0.03em;
    line-height: 1.06;
    max-width: 100%;
    margin-bottom: var(--space-md);
  }

  .hero__subtitle {
    font-size: 1rem;
    line-height: 1.65;
    max-width: 100%;
    margin-bottom: var(--space-lg);
  }

  .hero__eyebrow {
    margin-bottom: var(--space-md);
  }

  .hero__eyebrow-line {
    width: 32px;
  }

  .hero__eyebrow-text {
    font-size: 0.6875rem;
    letter-spacing: 0.14em;
  }

  .hero__stats {
    flex-direction: row;
    gap: var(--space-lg);
    flex-wrap: wrap;
    margin-top: var(--space-xl);
    padding-top: var(--space-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
  }

  .hero__stat-value {
    font-size: clamp(1.6rem, 6vw, 2.4rem);
    margin-bottom: 0.25rem;
  }

  .hero__stat-label {
    font-size: 0.6875rem;
    letter-spacing: 0.1em;
  }

  .hero__actions {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-sm);
    width: 100%;
  }

  .hero__actions .btn {
    justify-content: center;
    padding: 1rem 1.5rem;
    font-size: 0.9375rem;
    width: 100%;
  }

  .hero__scroll-indicator {
    display: none;
  }

  /* --- SECTION SPACING: Mobile rhythm --- */
  .section {
    padding: var(--space-xl) 0;
  }

  .section--compact {
    padding: var(--space-lg) 0;
  }

  .section--spacious {
    padding: var(--space-2xl) 0;
  }

  .section-header {
    margin-bottom: var(--space-xl);
  }

  .section-header__title {
    font-size: clamp(1.8rem, 6vw, 2.8rem);
    line-height: 1.1;
    margin-bottom: var(--space-sm);
  }

  .section-header__desc {
    font-size: 1rem;
    line-height: 1.7;
  }

  .section-header__eyebrow {
    margin-bottom: var(--space-sm);
  }

  /* --- PROPOSITION: Mobile stack --- */
  .proposition__visual {
    aspect-ratio: 16/10;
    order: -1;
  }

  .proposition__lead {
    font-size: 1rem;
    margin-bottom: var(--space-lg);
  }

  .capability {
    padding: var(--space-md);
  }

  .capability__content p {
    font-size: var(--text-caption);
    line-height: 1.6;
  }

  /* --- NAVIGATOR: Mobile readability --- */
  .navigator__title {
    font-size: clamp(1.5rem, 5vw, 2.2rem);
  }

  .navigator__desc {
    font-size: 1rem;
  }

  .navigator__badges {
    gap: 0.5rem;
    margin-bottom: var(--space-md);
  }

  .navigator__metrics {
    grid-template-columns: 1fr;
  }

  .metric {
    padding: var(--space-md);
    text-align: left;
    display: flex;
    align-items: baseline;
    gap: var(--space-sm);
    flex-wrap: wrap;
  }

  .metric__value {
    font-size: 1.5rem;
    margin-bottom: 0;
  }

  .metric__label {
    font-size: 0.75rem;
  }

  .navigator__photo-container {
    margin-bottom: var(--space-sm);
  }

  .navigator__interface {
    padding: var(--space-sm);
  }

  .navigator__interface-header {
    padding-bottom: 0.75rem;
    margin-bottom: 0.75rem;
  }

  .interface-row {
    padding: 0.625rem 0.75rem;
  }

  .interface-row__icon {
    width: 28px;
    height: 28px;
  }

  .interface-row__icon svg {
    width: 14px;
    height: 14px;
  }

  .interface-row__label {
    font-size: 0.875rem;
  }

  .interface-row__sub {
    font-size: 0.625rem;
  }

  .interface-row__value {
    font-size: 0.8125rem;
  }

  /* --- ADVANTAGES: Mobile cards --- */
  .advantage {
    padding: var(--space-lg) var(--space-md);
  }

  .advantage__title {
    font-size: 1.15rem;
    margin-bottom: 0.625rem;
  }

  .advantage__desc {
    font-size: 0.9375rem;
    line-height: 1.65;
  }

  /* --- EXPERTS: Mobile flow --- */
  .experts__text {
    font-size: 1rem;
    line-height: 1.7;
    margin-bottom: var(--space-sm);
  }

  .experts__visual {
    order: -1;
    margin-bottom: var(--space-sm);
  }

  /* --- PROCESS: Mobile timeline --- */
  .process__timeline {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }

  .process__timeline::before {
    display: none;
  }

  .process__step {
    text-align: left;
    padding: 0;
    display: grid;
    grid-template-columns: 52px 1fr;
    grid-template-rows: auto auto;
    gap: 0 var(--space-md);
  }

  .process__step-number {
    margin: 0;
    grid-row: 1 / 2;
    grid-column: 1 / 2;
    width: 52px;
    height: 52px;
    align-self: start;
  }

  .process__step-content {
    grid-row: 1 / 2;
    grid-column: 2 / 3;
  }

  .process__step-image {
    grid-row: 2 / 3;
    grid-column: 1 / -1;
    width: 100%;
    max-height: 200px;
    margin-top: var(--space-md);
  }

  .process__step-title {
    font-size: 1.0625rem;
    margin-bottom: 0.375rem;
  }

  .process__step-desc {
    font-size: 0.9375rem;
  }

  /* --- SUPPLY: Mobile layout --- */
  .supply__map-stats {
    grid-template-columns: repeat(2, 1fr);
  }

  .supply__service {
    padding: var(--space-md) 0;
  }

  .supply__service-title {
    font-size: 1rem;
  }

  .supply__service-desc {
    font-size: 0.9375rem;
  }

  /* --- TRUST: Mobile stack --- */
  .trust__grid {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .trust__item {
    text-align: left;
    display: flex;
    gap: var(--space-md);
    padding: var(--space-md) 0;
    border-bottom: 1px solid var(--border-light);
    border-radius: 0;
  }

  .trust__item:last-child {
    border-bottom: none;
  }

  .trust__item:hover {
    background: none;
  }

  .trust__icon {
    margin: 0;
    flex-shrink: 0;
    width: 48px;
    height: 48px;
  }

  .trust__item-title {
    font-size: 1rem;
    margin-bottom: 0.25rem;
  }

  .trust__item-desc {
    font-size: 0.9375rem;
    line-height: 1.6;
  }

  /* --- CTA: Mobile presence --- */
  .cta-section__title {
    font-size: clamp(1.5rem, 5vw, 2rem);
  }

  .cta-section__text {
    font-size: 1rem;
    line-height: 1.7;
  }

  .cta-section__inner .btn {
    width: 100%;
    justify-content: center;
  }

  /* --- CONTACT: Mobile usability --- */
  .contact__grid {
    gap: var(--space-xl);
  }

  .contact__detail {
    padding: var(--space-md) 0;
  }

  .contact__detail-value {
    font-size: 1rem;
  }

  .contact__form {
    padding: var(--space-lg);
  }

  .contact__form-title {
    font-size: 1.25rem;
    margin-bottom: var(--space-md);
  }

  .form-row {
    grid-template-columns: 1fr;
    gap: var(--space-sm);
  }

  .form-field input,
  .form-field textarea,
  .form-field select {
    padding: 0.875rem 1rem;
    font-size: 1rem;
  }

  .form-field label {
    font-size: 0.75rem;
  }

  .form-submit .btn {
    width: 100%;
    justify-content: center;
    padding: 1rem 1.5rem;
    font-size: 1rem;
  }

  /* --- FOOTER: Mobile compact --- */
  .footer {
    padding: var(--space-xl) 0 var(--space-md);
  }

  .footer__upper {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg) var(--space-md);
    padding-bottom: var(--space-lg);
  }

  .footer__brand {
    grid-column: 1 / -1;
    margin-bottom: var(--space-sm);
  }

  .footer__brand-logo-img {
    height: 28px;
  }

  .footer__brand-desc {
    font-size: 0.9375rem;
    max-width: 320px;
  }

  .footer__col-title {
    font-size: 0.6875rem;
    margin-bottom: var(--space-sm);
  }

  .footer__links {
    gap: 0.625rem;
  }

  .footer__links a {
    font-size: 0.9375rem;
  }

  .footer__lower {
    flex-direction: column;
    gap: var(--space-sm);
    text-align: center;
    padding-top: var(--space-md);
  }

  .footer__legal {
    font-size: 0.6875rem;
  }

  .footer__legal-links a {
    font-size: 0.6875rem;
  }
}

/* --- SMALL PHONE (≤480px) --- */

@media (max-width: 480px) {

  :root {
    --grid-padding: 1.25rem;
  }

  /* Nav tighter */
  .nav {
    padding: 0 1.25rem;
  }

  .nav__inner {
    height: 56px;
  }

  .nav.is-scrolled .nav__inner {
    height: 52px;
  }

  .nav__logo-img {
    height: 28px;
  }

  /* Hero: smaller phone refinement */
  .hero__title {
    font-size: clamp(1.85rem, 7.5vw, 2.6rem);
    letter-spacing: -0.025em;
  }

  .hero__subtitle {
    font-size: 0.9375rem;
  }

  .hero__stats {
    gap: var(--space-md);
  }

  .hero__stat-value {
    font-size: 1.5rem;
  }

  .hero__stat-label {
    font-size: 0.625rem;
  }

  /* Section headers: tighter */
  .section-header__title {
    font-size: clamp(1.5rem, 6.5vw, 2.2rem);
  }

  /* Capabilities: tighter */
  .capability {
    padding: var(--space-sm);
    gap: var(--space-sm);
  }

  .capability__icon {
    width: 40px;
    height: 40px;
  }

  .capability__icon svg {
    width: 18px;
    height: 18px;
  }

  .capability__content h4 {
    font-size: 0.9375rem;
  }

  .capability__content p {
    font-size: 0.875rem;
  }

  /* Navigator metrics inline */
  .metric {
    padding: var(--space-sm) var(--space-md);
  }

  .metric__value {
    font-size: 1.25rem;
  }

  /* Advantages: tighter */
  .advantage {
    padding: var(--space-md);
  }

  .advantage__title {
    font-size: 1.0625rem;
  }

  .advantage__desc {
    font-size: 0.875rem;
  }

  /* Process: smaller numbers */
  .process__step {
    grid-template-columns: 44px 1fr;
    gap: 0 var(--space-sm);
  }

  .process__step-number {
    width: 44px;
    height: 44px;
    font-size: 0.875rem;
  }

  .process__step-title {
    font-size: 1rem;
  }

  .process__step-desc {
    font-size: 0.875rem;
  }

  /* Supply stats: keep 2-col but tighter */
  .supply__map-stat {
    padding: 0.75rem;
  }

  .supply__map-stat-value {
    font-size: 1.125rem;
  }

  .supply__map-stat-label {
    font-size: 0.625rem;
  }

  .supply__map-details {
    padding: var(--space-md);
  }

  /* Trust items tighter */
  .trust__item {
    gap: var(--space-sm);
  }

  .trust__icon {
    width: 42px;
    height: 42px;
  }

  .trust__icon svg {
    width: 20px;
    height: 20px;
  }

  .trust__item-title {
    font-size: 0.9375rem;
  }

  .trust__item-desc {
    font-size: 0.875rem;
  }

  /* Contact form tighter */
  .contact__form {
    padding: var(--space-md);
  }

  .contact__detail-label {
    font-size: 0.6875rem;
  }

  .contact__detail-value {
    font-size: 0.9375rem;
  }

  /* Footer: single column on small phones */
  .footer__upper {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }

  /* CTA tighter */
  .cta-section__title {
    font-size: 1.375rem;
  }

  .cta-section__text {
    font-size: 0.9375rem;
  }

  /* Navigator interface: compact */
  .navigator__interface {
    padding: 0.75rem;
  }

  .interface-row {
    padding: 0.5rem 0.625rem;
    gap: 0.5rem;
  }

  .interface-row__left {
    gap: 0.5rem;
  }

  .interface-row__label {
    font-size: 0.8125rem;
  }

  .interface-row__value {
    font-size: 0.75rem;
  }

  /* Buttons: full-width on small phones */
  .btn {
    padding: 0.875rem 1.25rem;
    font-size: 0.9375rem;
  }
}