/* ==========================================================================
   TPM Services Terrassement - Styles
   Industrial Refined Design System
   ========================================================================== */

/* --------------------------------------------------------------------------
   CSS Variables - Design Tokens
   -------------------------------------------------------------------------- */
:root {
  /* Couleurs principales - Palette Terre de Nouvelle-Calédonie */
  --color-earth: #C45C26;
  --color-earth-dark: #8B3D1A;
  --color-earth-light: #E07B3E;
  --color-laterite: #A0522D;

  /* Neutres */
  --color-charcoal: #1A1A1A;
  --color-graphite: #2D2D2D;
  --color-slate: #4A4A4A;
  --color-concrete: #6B6B6B;
  --color-dust: #9B9B9B;
  --color-sand: #F5F0EB;
  --color-cream: #FAF8F5;
  --color-white: #FFFFFF;

  /* Typographie */
  --font-display: 'Bebas Neue', 'Arial Black', sans-serif;
  --font-heading: 'Barlow Condensed', 'Arial Narrow', sans-serif;
  --font-body: 'Barlow', 'Helvetica Neue', sans-serif;

  /* Espacements */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;
  --space-3xl: 10rem;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 300ms ease;
  --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);

  /* Ombres */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.15);
  --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.2);
  --shadow-brutal: 8px 8px 0 var(--color-charcoal);

  /* Angles - signature visuelle */
  --skew-angle: -3deg;
  --clip-diagonal: polygon(0 0, 100% 0, 100% 85%, 0 100%);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.6;
  color: var(--color-charcoal);
  background-color: var(--color-cream);
  overflow-x: hidden;
}

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

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

ul, ol {
  list-style: none;
}

/* --------------------------------------------------------------------------
   Typography
   -------------------------------------------------------------------------- */
h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: 0.02em;
}

.display-title {
  font-family: var(--font-display);
  font-size: clamp(3rem, 10vw, 8rem);
  font-weight: 400;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  line-height: 0.9;
}

.section-title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  text-transform: uppercase;
  position: relative;
  display: inline-block;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -0.5rem;
  left: 0;
  width: 60px;
  height: 4px;
  background: var(--color-earth);
  transform: skewX(var(--skew-angle));
}

.section-subtitle {
  font-family: var(--font-body);
  font-size: 1.125rem;
  font-weight: 400;
  color: var(--color-slate);
  max-width: 600px;
  margin-top: var(--space-md);
}

.section-subtitle--centered {
  text-align: center;
  margin-left: auto;
  margin-right: auto;
}

/* --------------------------------------------------------------------------
   Layout Components
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

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

.section--dark {
  background: var(--color-charcoal);
  color: var(--color-white);
}

.section--earth {
  background: var(--color-earth);
  color: var(--color-white);
}

.grid {
  display: grid;
  gap: var(--space-lg);
}

.grid--2 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.grid--3 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.grid--4 { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 1rem 2rem;
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.btn--primary {
  background: var(--color-earth);
  color: var(--color-white);
  transform: skewX(var(--skew-angle));
}

.btn--primary > * {
  transform: skewX(calc(var(--skew-angle) * -1));
}

.btn--primary:hover {
  background: var(--color-earth-dark);
  transform: skewX(var(--skew-angle)) translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn--outline {
  background: transparent;
  color: var(--color-white);
  border: 2px solid var(--color-white);
}

.btn--outline:hover {
  background: var(--color-white);
  color: var(--color-charcoal);
}

.btn--dark {
  background: var(--color-charcoal);
  color: var(--color-white);
}

.btn--dark:hover {
  background: var(--color-graphite);
}

/* --------------------------------------------------------------------------
   Header & Navigation
   -------------------------------------------------------------------------- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: var(--space-sm) 0;
  background: rgba(26, 26, 26, 0.95);
  backdrop-filter: blur(10px);
  transition: all var(--transition-base);
}

.header.scrolled {
  padding: var(--space-xs) 0;
  box-shadow: var(--shadow-md);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.logo__img {
  height: 50px;
  width: auto;
}

.logo__text {
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--color-white);
  letter-spacing: 0.1em;
}

.nav {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.nav__list {
  display: flex;
  gap: var(--space-lg);
}

.nav__link {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-white);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  position: relative;
  padding: var(--space-xs) 0;
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-earth);
  transition: width var(--transition-base);
}

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

.nav__cta {
  margin-left: var(--space-sm);
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-xs);
}

.menu-toggle span {
  display: block;
  width: 28px;
  height: 2px;
  background: var(--color-white);
  transition: all var(--transition-fast);
}

/* --------------------------------------------------------------------------
   Hero Section
   -------------------------------------------------------------------------- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  background: var(--color-charcoal);
  overflow: hidden;
  padding-bottom: 120px; /* Espace pour la barre de stats */
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 1;
}

.hero__bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(26, 26, 26, 0.95) 0%,
    rgba(26, 26, 26, 0.7) 50%,
    rgba(196, 92, 38, 0.3) 100%
  );
  z-index: 2;
}

.hero__bg-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.6;
}

/* Texture overlay */
.hero__bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 400 400' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
  opacity: 0.03;
  z-index: 3;
  pointer-events: none;
}

.hero__content {
  position: relative;
  z-index: 10;
  padding-top: 120px;
  width: 100%;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-xs) var(--space-sm);
  background: var(--color-earth);
  color: var(--color-white);
  font-family: var(--font-heading);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-md);
  transform: skewX(var(--skew-angle));
  animation: slideIn 0.8s ease-out;
}

.hero__badge > * {
  transform: skewX(calc(var(--skew-angle) * -1));
}

.hero__title {
  color: var(--color-white);
  margin-bottom: var(--space-md);
  animation: fadeUp 0.8s ease-out 0.2s both;
}

.hero__title span {
  display: block;
  color: var(--color-earth-light);
}

.hero__description {
  font-size: 1.25rem;
  color: var(--color-dust);
  max-width: 550px;
  margin-bottom: var(--space-lg);
  animation: fadeUp 0.8s ease-out 0.4s both;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  align-items: center;
  animation: fadeUp 0.8s ease-out 0.6s both;
}

.hero__actions .btn {
  min-width: 200px;
  justify-content: center;
}

.hero__actions .btn--outline {
  padding: 1rem 2rem;
  transform: skewX(var(--skew-angle));
}

.hero__actions .btn--outline:hover {
  transform: skewX(var(--skew-angle)) translateY(-2px);
}

/* Diagonal accent */
.hero__accent {
  position: absolute;
  right: -10%;
  bottom: 0;
  width: 50%;
  height: 120%;
  background: var(--color-earth);
  transform: skewX(-15deg);
  opacity: 0.1;
  z-index: 1;
}

/* Stats bar */
.hero__stats {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(26, 26, 26, 0.95);
  backdrop-filter: blur(10px);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: var(--space-lg) 0;
  z-index: 10;
}

.hero__stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--space-lg);
  text-align: center;
}

.stat__number {
  font-family: var(--font-display);
  font-size: 2.5rem;
  color: var(--color-earth-light);
  line-height: 1;
}

.stat__label {
  font-size: 0.875rem;
  color: var(--color-dust);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-top: var(--space-xs);
}

/* --------------------------------------------------------------------------
   About Section
   -------------------------------------------------------------------------- */
.about {
  position: relative;
  background: var(--color-cream);
}

.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  align-items: center;
}

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

.about__text {
  font-size: 1.125rem;
  color: var(--color-slate);
  margin-bottom: var(--space-md);
}

.about__features {
  margin-top: var(--space-lg);
}

.feature {
  display: flex;
  gap: var(--space-md);
  padding: var(--space-md) 0;
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
}

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

.feature__icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-earth);
  color: var(--color-white);
  font-size: 1.25rem;
  transform: skewX(var(--skew-angle));
}

.feature__content h4 {
  font-size: 1.125rem;
  margin-bottom: var(--space-xs);
}

.feature__content p {
  font-size: 0.9375rem;
  color: var(--color-concrete);
}

.about__image {
  position: relative;
}

.about__image-wrapper {
  position: relative;
  overflow: hidden;
}

.about__image-wrapper::before {
  content: '';
  position: absolute;
  top: -20px;
  right: -20px;
  width: 100%;
  height: 100%;
  border: 4px solid var(--color-earth);
  transform: skewX(var(--skew-angle));
  z-index: -1;
}

.about__image-wrapper img {
  width: 100%;
  height: auto;
  transform: skewX(var(--skew-angle));
}

/* --------------------------------------------------------------------------
   Services Section
   -------------------------------------------------------------------------- */
.services {
  background: var(--color-charcoal);
  color: var(--color-white);
  position: relative;
  overflow: hidden;
}

.services::before {
  content: '';
  position: absolute;
  top: 0;
  left: -5%;
  width: 40%;
  height: 100%;
  background: var(--color-earth);
  transform: skewX(-15deg);
  opacity: 0.05;
}

.services__header {
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.services__header .section-title::after {
  left: 50%;
  transform: translateX(-50%) skewX(var(--skew-angle));
}

.services__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-lg);
}

.service-card {
  background: var(--color-graphite);
  padding: var(--space-lg);
  position: relative;
  overflow: hidden;
  transition: all var(--transition-base);
  border-left: 4px solid transparent;
}

.service-card:hover {
  border-left-color: var(--color-earth);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.service-card__number {
  font-family: var(--font-display);
  font-size: 4rem;
  color: var(--color-earth);
  opacity: 0.3;
  line-height: 1;
  position: absolute;
  top: var(--space-sm);
  right: var(--space-md);
}

.service-card__icon {
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-earth);
  margin-bottom: var(--space-md);
  font-size: 1.5rem;
  transform: skewX(var(--skew-angle));
}

.service-card__icon svg {
  transform: skewX(calc(var(--skew-angle) * -1));
}

.service-card__title {
  font-size: 1.5rem;
  margin-bottom: var(--space-sm);
}

.service-card__description {
  color: var(--color-dust);
  font-size: 0.9375rem;
  line-height: 1.7;
}

/* --------------------------------------------------------------------------
   Equipment Section
   -------------------------------------------------------------------------- */
.equipment {
  background: var(--color-sand);
  position: relative;
}

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

.equipment__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--space-lg);
}

.equipment-card {
  background: var(--color-white);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
}

.equipment-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.equipment-card__image {
  position: relative;
  height: 240px;
  overflow: hidden;
  background: var(--color-cream);
}

.equipment-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.equipment-card:hover .equipment-card__image img {
  transform: scale(1.05);
}

.equipment-card__badge {
  position: absolute;
  top: var(--space-sm);
  left: var(--space-sm);
  padding: var(--space-xs) var(--space-sm);
  background: var(--color-earth);
  color: var(--color-white);
  font-family: var(--font-heading);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  transform: skewX(var(--skew-angle));
}

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

.equipment-card__title {
  font-size: 1.375rem;
  margin-bottom: var(--space-sm);
  color: var(--color-charcoal);
}

.equipment-card__description {
  font-size: 0.9375rem;
  color: var(--color-concrete);
  margin-bottom: var(--space-md);
  line-height: 1.7;
}

.equipment-card__options {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  margin-bottom: var(--space-md);
}

.equipment-card__option {
  padding: var(--space-xs) var(--space-sm);
  background: var(--color-sand);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-slate);
}

.equipment-card__cta {
  width: 100%;
  justify-content: center;
  background: var(--color-charcoal);
  color: var(--color-white);
}

.equipment-card__cta,
.equipment-card__cta:hover {
  transform: none;
}

.equipment-card__cta:hover {
  background: var(--color-earth);
}

/* --------------------------------------------------------------------------
   Contact Section
   -------------------------------------------------------------------------- */
.contact {
  background: var(--color-cream);
}

.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: var(--space-2xl);
}

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

.contact__text {
  font-size: 1.125rem;
  color: var(--color-slate);
  margin-bottom: var(--space-lg);
}

.contact-details {
  margin-top: var(--space-lg);
}

.contact-detail {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  padding: var(--space-md) 0;
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
}

.contact-detail:last-child {
  border-bottom: none;
}

.contact-detail__icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-charcoal);
  color: var(--color-white);
  font-size: 1.25rem;
  transform: skewX(var(--skew-angle));
}

.contact-detail__content h4 {
  font-size: 1rem;
  margin-bottom: var(--space-xs);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.contact-detail__content p,
.contact-detail__content a {
  font-size: 1.125rem;
  color: var(--color-slate);
}

.contact-detail__content a:hover {
  color: var(--color-earth);
}

/* Contact Form */
.contact__form-wrapper {
  background: var(--color-white);
  padding: var(--space-xl);
  box-shadow: var(--shadow-md);
  position: relative;
}

.contact__form-wrapper::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--color-earth);
}

.form__title {
  font-size: 1.5rem;
  margin-bottom: var(--space-lg);
}

.form__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

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

.form__group--full {
  grid-column: 1 / -1;
}

.form__label {
  display: block;
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-charcoal);
  margin-bottom: var(--space-xs);
}

.form__label span {
  color: var(--color-earth);
}

.form__input,
.form__select,
.form__textarea {
  width: 100%;
  padding: var(--space-sm) var(--space-md);
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--color-charcoal);
  background: var(--color-sand);
  border: 2px solid transparent;
  transition: all var(--transition-fast);
}

.form__input:focus,
.form__select:focus,
.form__textarea:focus {
  outline: none;
  border-color: var(--color-earth);
  background: var(--color-white);
}

.form__select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%234A4A4A' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-sm) center;
  padding-right: var(--space-xl);
}

.form__textarea {
  min-height: 150px;
  resize: vertical;
}

.form__submit {
  width: 100%;
  padding: var(--space-md) var(--space-xl);
  font-size: 1.125rem;
}

/* --------------------------------------------------------------------------
   Realisations Section
   -------------------------------------------------------------------------- */
.realisations {
  background: var(--color-charcoal);
  color: var(--color-white);
}

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

.realisations__header .section-title::after {
  background: var(--color-earth-light);
}

.realisations__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.realisation-card {
  position: relative;
  overflow: hidden;
  cursor: pointer;
  height: 280px;
}

.realisation-card__image {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
}

.realisation-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.realisation-card:hover .realisation-card__image img {
  transform: scale(1.1);
}

.realisation-card__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(26, 26, 26, 0.9) 0%,
    rgba(26, 26, 26, 0.2) 60%,
    transparent 100%
  );
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  padding: var(--space-lg);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.realisation-card:hover .realisation-card__overlay {
  opacity: 1;
}

.realisation-card__tag {
  display: inline-block;
  padding: var(--space-xs) var(--space-sm);
  background: var(--color-earth);
  color: var(--color-white);
  font-family: var(--font-heading);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  transform: skewX(var(--skew-angle)) translateY(20px);
  transition: transform var(--transition-base);
}

.realisation-card:hover .realisation-card__tag {
  transform: skewX(var(--skew-angle)) translateY(0);
}

.realisation-card__zoom {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-white);
  color: var(--color-charcoal);
  border-radius: 50%;
  transform: translateY(20px);
  opacity: 0;
  transition: all var(--transition-base);
}

.realisation-card:hover .realisation-card__zoom {
  transform: translateY(0);
  opacity: 1;
}

.realisation-card__zoom:hover {
  background: var(--color-earth);
  color: var(--color-white);
}

/* --------------------------------------------------------------------------
   Lightbox
   -------------------------------------------------------------------------- */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(0, 0, 0, 0.95);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
}

.lightbox.active {
  opacity: 1;
  visibility: visible;
}

.lightbox__content {
  max-width: 90vw;
  max-height: 90vh;
  position: relative;
}

.lightbox__image {
  max-width: 90vw;
  max-height: 85vh;
  object-fit: contain;
  border-radius: 4px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
  transform: scale(0.9);
  transition: transform var(--transition-base);
}

.lightbox.active .lightbox__image {
  transform: scale(1);
}

.lightbox__close {
  position: absolute;
  top: var(--space-lg);
  right: var(--space-lg);
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 2px solid rgba(255, 255, 255, 0.3);
  color: var(--color-white);
  cursor: pointer;
  transition: all var(--transition-fast);
  z-index: 10;
}

.lightbox__close:hover {
  background: var(--color-earth);
  border-color: var(--color-earth);
}

.lightbox__nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.1);
  border: none;
  color: var(--color-white);
  cursor: pointer;
  transition: all var(--transition-fast);
  z-index: 10;
}

.lightbox__nav:hover {
  background: var(--color-earth);
}

.lightbox__nav--prev {
  left: var(--space-lg);
}

.lightbox__nav--next {
  right: var(--space-lg);
}

/* Responsive realisations */
@media (max-width: 1024px) {
  .realisations__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .realisation-card {
    height: 240px;
  }
}

@media (max-width: 600px) {
  .realisations__grid {
    grid-template-columns: 1fr;
  }

  .realisation-card {
    height: 220px;
  }

  .realisation-card__overlay {
    opacity: 1;
  }

  .realisation-card__tag {
    transform: skewX(var(--skew-angle)) translateY(0);
  }

  .realisation-card__zoom {
    transform: translateY(0);
    opacity: 1;
  }

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

  .lightbox__nav--prev {
    left: var(--space-sm);
  }

  .lightbox__nav--next {
    right: var(--space-sm);
  }
}

/* --------------------------------------------------------------------------
   CTA Section
   -------------------------------------------------------------------------- */
.cta-section {
  background: var(--color-earth);
  padding: var(--space-2xl) 0;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: 0;
  right: -10%;
  width: 50%;
  height: 100%;
  background: rgba(255, 255, 255, 0.05);
  transform: skewX(-15deg);
}

.cta-content {
  text-align: center;
  position: relative;
  z-index: 2;
}

.cta-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.5rem);
  color: var(--color-white);
  margin-bottom: var(--space-sm);
  letter-spacing: 0.05em;
}

.cta-text {
  font-size: 1.25rem;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: var(--space-lg);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.cta-section .btn--primary {
  background: var(--color-white);
  color: var(--color-earth);
}

.cta-section .btn--primary:hover {
  background: var(--color-charcoal);
  color: var(--color-white);
}

.btn--large {
  padding: 1.25rem 2.5rem;
  font-size: 1.25rem;
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.footer {
  background: var(--color-charcoal);
  color: var(--color-white);
  padding: var(--space-2xl) 0 var(--space-md);
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: var(--space-xl);
  margin-bottom: var(--space-2xl);
}

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

.footer__logo {
  height: 60px;
  margin-bottom: var(--space-md);
}

.footer__description {
  color: var(--color-dust);
  font-size: 0.9375rem;
  line-height: 1.7;
}

.footer__title {
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-sm);
  border-bottom: 2px solid var(--color-earth);
  display: inline-block;
}

.footer__links li {
  margin-bottom: var(--space-sm);
}

.footer__links a {
  color: var(--color-dust);
  font-size: 0.9375rem;
  transition: color var(--transition-fast);
}

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

.footer__contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
  color: var(--color-dust);
  font-size: 0.9375rem;
}

.footer__contact-icon {
  color: var(--color-earth);
  flex-shrink: 0;
  margin-top: 2px;
}

.footer__bottom {
  padding-top: var(--space-md);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.footer__copyright {
  color: var(--color-dust);
  font-size: 0.875rem;
  text-align: center;
}

.footer__copyright a {
  color: var(--color-earth-light);
  transition: color var(--transition-fast);
}

.footer__copyright a:hover {
  color: var(--color-white);
}

/* --------------------------------------------------------------------------
   Animations
   -------------------------------------------------------------------------- */
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: skewX(var(--skew-angle)) translateX(-30px);
  }
  to {
    opacity: 1;
    transform: skewX(var(--skew-angle)) translateX(0);
  }
}

/* Scroll animations */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* --------------------------------------------------------------------------
   Responsive Design
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .about__grid,
  .contact__grid {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }

  .about__content,
  .contact__info {
    padding-right: 0;
  }

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

@media (max-width: 768px) {
  :root {
    --space-2xl: 4rem;
    --space-xl: 3rem;
  }

  .nav__list {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-charcoal);
    flex-direction: column;
    padding: var(--space-md);
    gap: 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
  }

  .nav__list.open {
    display: flex;
  }

  .nav__link {
    padding: var(--space-sm) 0;
    display: block;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  }

  .nav__cta {
    display: none;
  }

  .menu-toggle {
    display: flex;
  }

  .menu-toggle.open span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }

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

  .menu-toggle.open span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
  }

  .hero {
    padding-bottom: 100px;
  }

  .hero__content {
    padding-top: 100px;
  }

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

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

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

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

  .footer__bottom {
    text-align: center;
  }

  .footer__copyright {
    line-height: 1.6;
  }
}

@media (max-width: 480px) {
  .hero {
    padding-bottom: 180px;
  }

  .hero__actions {
    flex-direction: column;
  }

  .hero__actions .btn {
    width: 100%;
    min-width: auto;
  }

  .hero__stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
  }

  .stat__number {
    font-size: 2rem;
  }

  .stat__label {
    font-size: 0.75rem;
  }

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

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

/* --------------------------------------------------------------------------
   Utility Classes
   -------------------------------------------------------------------------- */
/* Screen reader only (for honeypot anti-spam) */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.text-center { text-align: center; }
.text-earth { color: var(--color-earth); }
.text-white { color: var(--color-white); }
.bg-earth { background-color: var(--color-earth); }
.bg-dark { background-color: var(--color-charcoal); }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }