/* ================================================================
   DRESDEN BAU GMBH – Main Stylesheet
   Architecture: Mobile-first, CSS Custom Properties, BEM-ish naming
   Color palette:
     --color-slate      : #1e2d3d  (primary dark)
     --color-steel      : #2c5f8a  (steel blue)
     --color-steel-lt   : #3a7cbf  (lighter steel blue)
     --color-accent     : #f07c20  (safety orange – CTAs)
     --color-accent-dk  : #d4661a  (darker orange hover)
     --color-surface    : #f4f6f8  (light background)
     --color-white      : #ffffff
     --color-text       : #1e2d3d
     --color-text-muted : #5a6a7a
================================================================ */

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

html {
  scroll-behavior: smooth;          /* smooth anchor scrolling */
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  color: var(--color-text);
  background-color: var(--color-white);
  line-height: 1.65;
  overflow-x: hidden;
}

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

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

ul {
  list-style: none;
}

address {
  font-style: normal;
}

/* ---------------------------------------------------------------
   1. CUSTOM PROPERTIES (Design Tokens)
--------------------------------------------------------------- */
:root {
  /* Colors */
  --color-slate:      #1e2d3d;
  --color-steel:      #2c5f8a;
  --color-steel-lt:   #3a7cbf;
  --color-accent:     #f07c20;
  --color-accent-dk:  #d4661a;
  --color-surface:    #f4f6f8;
  --color-surface-dk: #e8ecf0;
  --color-white:      #ffffff;
  --color-text:       #1e2d3d;
  --color-text-muted: #5a6a7a;
  --color-text-light: #8a9aaa;
  --color-border:     #d0d9e2;
  --color-success:    #22a06b;
  --color-error:      #d9534f;

  /* Typography */
  --font-heading: 'Montserrat', sans-serif;
  --font-body:    'Inter', sans-serif;

  /* Spacing */
  --space-xs:   0.25rem;   /*  4px */
  --space-sm:   0.5rem;    /*  8px */
  --space-md:   1rem;      /* 16px */
  --space-lg:   1.5rem;    /* 24px */
  --space-xl:   2rem;      /* 32px */
  --space-2xl:  3rem;      /* 48px */
  --space-3xl:  4rem;      /* 64px */
  --space-4xl:  6rem;      /* 96px */

  /* Layout */
  --container-max: 1200px;
  --container-pad: 1.25rem;

  /* Border radius */
  --radius-sm:  0.25rem;
  --radius-md:  0.5rem;
  --radius-lg:  1rem;
  --radius-xl:  1.5rem;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm:  0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.05);
  --shadow-md:  0 4px 12px rgba(0,0,0,.10), 0 2px 4px rgba(0,0,0,.06);
  --shadow-lg:  0 10px 30px rgba(0,0,0,.12), 0 4px 10px rgba(0,0,0,.07);
  --shadow-xl:  0 20px 50px rgba(0,0,0,.16);

  /* Transitions */
  --transition-fast:   150ms ease;
  --transition-base:   250ms ease;
  --transition-slow:   400ms ease;

  /* Header */
  --header-h: 4.5rem;
}

/* ---------------------------------------------------------------
   2. UTILITY CLASSES
--------------------------------------------------------------- */

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

/* Section defaults */
.section {
  padding-block: var(--space-4xl);
}

/* Alternating section backgrounds */
.about   { background: var(--color-white); }
.services { background: var(--color-surface); }
.projects { background: var(--color-slate); color: var(--color-white); }
.contact  { background: var(--color-white); }

/* Section header typography */
.section__eyebrow {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
}

.section__title {
  font-family: var(--font-heading);
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 800;
  line-height: 1.2;
  color: inherit;
  margin-bottom: var(--space-md);
}

/* Override title color on dark section */
.projects .section__title {
  color: var(--color-white);
}

.section__lead {
  font-size: 1.0625rem;
  color: var(--color-text-muted);
  max-width: 60ch;
  margin-inline: auto;
}

.section__header {
  text-align: center;
  margin-bottom: var(--space-3xl);
}

/* Accent text color */
.text--accent { color: var(--color-accent); }

/* ---------------------------------------------------------------
   3. BUTTONS
--------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1;
  border: 2px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition:
    background-color var(--transition-base),
    border-color var(--transition-base),
    color var(--transition-base),
    transform var(--transition-fast),
    box-shadow var(--transition-base);
  white-space: nowrap;
  user-select: none;
}

.btn:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 3px;
}

/* Active press effect */
.btn:active { transform: translateY(1px); }

/* Primary (steel blue) */
.btn--primary {
  background-color: var(--color-steel);
  color: var(--color-white);
  border-color: var(--color-steel);
}
.btn--primary:hover {
  background-color: var(--color-steel-lt);
  border-color: var(--color-steel-lt);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

/* Accent (safety orange) – primary CTA */
.btn--accent {
  background-color: var(--color-accent);
  color: var(--color-white);
  border-color: var(--color-accent);
}
.btn--accent:hover {
  background-color: var(--color-accent-dk);
  border-color: var(--color-accent-dk);
  box-shadow: 0 6px 20px rgba(240,124,32,.35);
  transform: translateY(-2px);
}

/* Outline (transparent + border) */
.btn--outline {
  background-color: transparent;
  color: var(--color-white);
  border-color: rgba(255,255,255,.55);
}
.btn--outline:hover {
  background-color: rgba(255,255,255,.1);
  border-color: var(--color-white);
  transform: translateY(-2px);
}

/* Ghost (minimal) */
.btn--ghost {
  background-color: transparent;
  color: var(--color-text-muted);
  border-color: var(--color-border);
}
.btn--ghost:hover {
  background-color: var(--color-surface);
  color: var(--color-text);
}

/* Sizes */
.btn--sm  { padding: 0.5rem 1rem; font-size: 0.875rem; }
.btn--lg  { padding: 0.875rem 2.25rem; font-size: 1rem; }
.btn--full { width: 100%; }

/* Loading state */
.btn--loading {
  opacity: 0.8;
  pointer-events: none;
  cursor: default;
}

.btn__spinner {
  width: 1em;
  height: 1em;
  border: 2px solid rgba(255,255,255,.35);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* ---------------------------------------------------------------
   4. COOKIE CONSENT BANNER
--------------------------------------------------------------- */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 9000;
  background: var(--color-slate);
  color: var(--color-white);
  padding: var(--space-lg) var(--space-md);
  box-shadow: 0 -4px 24px rgba(0,0,0,.25);
  transform: translateY(0);
  transition: transform var(--transition-slow);
}

.cookie-banner.is-hidden {
  transform: translateY(110%);
  pointer-events: none;
}

.cookie-banner__inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

.cookie-banner__text strong {
  font-size: 1rem;
  display: block;
  margin-bottom: var(--space-xs);
}

.cookie-banner__text p {
  font-size: 0.875rem;
  color: rgba(255,255,255,.75);
  max-width: 75ch;
}

.cookie-banner__text a {
  color: var(--color-accent);
  text-decoration: underline;
}

.cookie-banner__actions {
  display: flex;
  gap: var(--space-sm);
  flex-shrink: 0;
}

/* Tablet: side-by-side layout */
@media (min-width: 640px) {
  .cookie-banner__inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

/* ---------------------------------------------------------------
   5. SITE HEADER
--------------------------------------------------------------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-h);
  background: transparent;
  transition:
    background-color var(--transition-base),
    box-shadow var(--transition-base),
    backdrop-filter var(--transition-base);
}

/* Scrolled state – added by JS */
.site-header.is-scrolled {
  background-color: rgba(30, 45, 61, 0.97);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow-md);
}

.header__inner {
  display: flex;
  align-items: center;
  height: 100%;
  gap: var(--space-xl);
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  color: var(--color-white);
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  flex-shrink: 0;
  text-decoration: none;
}

.logo__icon {
  color: var(--color-accent);
  font-size: 1.5rem;
  line-height: 1;
}

.logo__gmbh {
  font-weight: 400;
  font-size: 0.75em;
  opacity: 0.75;
}

/* Desktop nav (hidden on mobile) */
.site-nav {
  display: none;
  margin-left: auto;
}

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

.site-nav__link {
  color: rgba(255,255,255,.85);
  font-size: 0.9375rem;
  font-weight: 500;
  transition: color var(--transition-fast);
  position: relative;
}

.site-nav__link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  border-radius: var(--radius-full);
  transition: width var(--transition-base);
}

.site-nav__link:hover {
  color: var(--color-white);
}

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

/* Header CTA (desktop) */
.header__cta {
  display: none;
  margin-left: var(--space-md);
  flex-shrink: 0;
}

/* Hamburger button */
.hamburger {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  width: 26px;
  height: 20px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  margin-left: auto;
  flex-shrink: 0;
}

.hamburger__bar {
  display: block;
  width: 100%;
  height: 2.5px;
  background: var(--color-white);
  border-radius: var(--radius-full);
  transition: transform var(--transition-base), opacity var(--transition-base);
}

/* Animate hamburger → X */
.hamburger.is-open .hamburger__bar:nth-child(1) {
  transform: translateY(8.75px) rotate(45deg);
}
.hamburger.is-open .hamburger__bar:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.hamburger.is-open .hamburger__bar:nth-child(3) {
  transform: translateY(-8.75px) rotate(-45deg);
}

/* Mobile nav drawer */
.mobile-nav {
  display: block;
  background: var(--color-slate);
  overflow: hidden;
  max-height: 0;
  transition: max-height var(--transition-slow);
}

.mobile-nav.is-open {
  max-height: 30rem;
}

.mobile-nav__list {
  display: flex;
  flex-direction: column;
  padding: var(--space-md) var(--space-md) var(--space-xl);
  gap: var(--space-xs);
}

.mobile-nav__link {
  display: block;
  padding: var(--space-sm) var(--space-md);
  color: rgba(255,255,255,.85);
  font-size: 1rem;
  font-weight: 500;
  border-radius: var(--radius-md);
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.mobile-nav__link:hover {
  background: rgba(255,255,255,.08);
  color: var(--color-white);
}

.mobile-nav__cta {
  margin-top: var(--space-sm);
  text-align: center;
}

/* Desktop breakpoint: show full nav */
@media (min-width: 900px) {
  .site-nav      { display: flex; }
  .header__cta   { display: inline-flex; }
  .hamburger     { display: none; }
  .mobile-nav    { display: none !important; }
}

/* ---------------------------------------------------------------
   6. HERO SECTION
--------------------------------------------------------------- */
.hero {
  position: relative;
  min-height: 100svh;      /* full viewport height */
  display: flex;
  align-items: center;
  padding-top: var(--header-h);

  /* ===== HERO BACKGROUND IMAGE =====
     Replace this URL with your own high-quality image.
     Recommended: 1920×1080px, WebP format for performance.
  ===================================*/
  background-image: url('https://images.unsplash.com/photo-1541888946425-d81bb19240f5?w=1920&auto=format&fit=crop&q=80');
  background-size: cover;
  background-position: center top;
  background-repeat: no-repeat;
  color: var(--color-white);
  overflow: hidden;
}

/* Dark gradient overlay for legibility */
.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(30, 45, 61, 0.90) 0%,
    rgba(44, 95, 138, 0.65) 60%,
    rgba(30, 45, 61, 0.82) 100%
  );
  z-index: 0;
}

.hero__content {
  position: relative;
  z-index: 1;
  padding-block: var(--space-4xl);
  max-width: 780px;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  background: rgba(240,124,32,.85);
  color: var(--color-white);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: var(--space-xs) var(--space-md);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-lg);
}

.hero__headline {
  font-family: var(--font-heading);
  font-size: clamp(2.5rem, 7vw, 5rem);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-xl);
  text-shadow: 0 2px 20px rgba(0,0,0,.3);
}

.hero__sub {
  font-size: clamp(1rem, 1.8vw, 1.175rem);
  line-height: 1.7;
  color: rgba(255,255,255,.88);
  max-width: 60ch;
  margin-bottom: var(--space-2xl);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  margin-bottom: var(--space-3xl);
}

/* Trust bar */
.hero__trust {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-lg) var(--space-xl);
  align-items: center;
  border-top: 1px solid rgba(255,255,255,.2);
  padding-top: var(--space-xl);
}

.trust-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.trust-item__number {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 900;
  color: var(--color-accent);
  line-height: 1;
}

.trust-item__label {
  font-size: 0.8125rem;
  color: rgba(255,255,255,.7);
  font-weight: 500;
}

.trust-divider {
  width: 1px;
  height: 2.5rem;
  background: rgba(255,255,255,.2);
  display: none;
}

@media (min-width: 480px) {
  .trust-divider { display: block; }
}

/* Scroll arrow */
.hero__scroll-arrow {
  position: absolute;
  bottom: var(--space-xl);
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  color: rgba(255,255,255,.6);
  animation: bounce 2s ease-in-out infinite;
  transition: color var(--transition-fast);
}

.hero__scroll-arrow:hover { color: var(--color-accent); }

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%       { transform: translateX(-50%) translateY(8px); }
}

/* ---------------------------------------------------------------
   7. ABOUT SECTION
--------------------------------------------------------------- */
.about__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3xl);
  align-items: center;
}

@media (min-width: 768px) {
  .about__grid {
    grid-template-columns: 1fr 1fr;
  }
}

.about__img-wrapper {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}

.about__img-wrapper img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.5s ease;
}

.about__img-wrapper:hover img {
  transform: scale(1.03);
}

/* Floating experience badge */
.about__badge {
  position: absolute;
  bottom: var(--space-lg);
  right: var(--space-lg);
  background: var(--color-accent);
  color: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--space-md) var(--space-lg);
  text-align: center;
  box-shadow: var(--shadow-lg);
  line-height: 1.2;
}

.about__badge-number {
  display: block;
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 900;
}

.about__badge-text {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  opacity: 0.9;
}

/* About body text */
.about__body .section__eyebrow { margin-bottom: var(--space-xs); }
.about__body .section__title   { margin-bottom: var(--space-lg); }

.about__body p {
  color: var(--color-text-muted);
  margin-bottom: var(--space-md);
}

/* USP checklist */
.about__usp-list {
  margin-block: var(--space-xl);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.about__usp-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  font-size: 0.9375rem;
  color: var(--color-text);
  font-weight: 500;
}

.usp-icon {
  color: var(--color-accent);
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 0.1em;
}

/* ---------------------------------------------------------------
   8. SERVICES SECTION
--------------------------------------------------------------- */
.services__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
}

@media (min-width: 600px) {
  .services__grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .services__grid { grid-template-columns: repeat(3, 1fr); }
}

.service-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  transition:
    transform var(--transition-base),
    box-shadow var(--transition-base),
    border-color var(--transition-base);
  cursor: default;
  outline: none; /* handled via :focus-visible */
}

.service-card:hover,
.service-card:focus-visible {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-accent);
}

.service-card:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
}

/* Service icon */
.service-card__icon {
  width: 3rem;
  height: 3rem;
  color: var(--color-steel);
  margin-bottom: var(--space-lg);
  transition: color var(--transition-base);
}

.service-card:hover .service-card__icon,
.service-card:focus-visible .service-card__icon {
  color: var(--color-accent);
}

.service-card__icon svg {
  width: 100%;
  height: 100%;
}

.service-card__title {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-slate);
  margin-bottom: var(--space-sm);
}

.service-card__text {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.65;
  margin-bottom: var(--space-md);
}

.service-card__items {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.service-card__items li {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  padding-left: 1.25rem;
  position: relative;
}

.service-card__items li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-weight: 600;
}

.services__cta {
  text-align: center;
  margin-top: var(--space-3xl);
  padding: var(--space-2xl);
  background: var(--color-white);
  border-radius: var(--radius-lg);
  border: 1px dashed var(--color-accent);
}

.services__cta p {
  color: var(--color-text-muted);
  margin-bottom: var(--space-md);
  font-size: 1rem;
}

/* ---------------------------------------------------------------
   9. PROJECTS / TESTIMONIALS SECTION
--------------------------------------------------------------- */
.projects__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
  margin-bottom: var(--space-4xl);
}

@media (min-width: 680px) {
  .projects__grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .projects__grid { grid-template-columns: repeat(3, 1fr); }
}

.project-card {
  background: rgba(255,255,255,.05);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid rgba(255,255,255,.1);
  transition:
    transform var(--transition-base),
    box-shadow var(--transition-base);
}

.project-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 50px rgba(0,0,0,.35);
}

.project-card__img-wrapper {
  position: relative;
  overflow: hidden;
  aspect-ratio: 3 / 2;
}

.project-card__img-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.55s ease;
}

.project-card:hover .project-card__img-wrapper img {
  transform: scale(1.07);
}

.project-card__tag {
  position: absolute;
  top: var(--space-md);
  left: var(--space-md);
  background: var(--color-accent);
  color: var(--color-white);
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
}

.project-card__body {
  padding: var(--space-lg) var(--space-xl);
}

.project-card__title {
  font-family: var(--font-heading);
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: var(--space-xs);
}

.project-card__meta {
  font-size: 0.8125rem;
  color: var(--color-accent);
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.project-card__text {
  font-size: 0.875rem;
  color: rgba(255,255,255,.7);
  line-height: 1.65;
}

/* Testimonials */
.testimonials__title {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: var(--space-xl);
  text-align: center;
}

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

@media (min-width: 680px) {
  .testimonials__grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .testimonials__grid { grid-template-columns: repeat(3, 1fr); }
}

.testimonial-card {
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  transition: background-color var(--transition-base), transform var(--transition-base);
}

.testimonial-card:hover {
  background: rgba(255,255,255,.10);
  transform: translateY(-4px);
}

.testimonial-card__stars {
  color: var(--color-accent);
  font-size: 1.125rem;
  letter-spacing: 2px;
  margin-bottom: var(--space-md);
}

.testimonial-card__quote {
  font-size: 0.9375rem;
  color: rgba(255,255,255,.85);
  line-height: 1.7;
  font-style: italic;
  margin-bottom: var(--space-lg);
}

.testimonial-card__author {
  border-top: 1px solid rgba(255,255,255,.12);
  padding-top: var(--space-md);
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.testimonial-card__author strong {
  color: var(--color-white);
  font-size: 0.9375rem;
}

.testimonial-card__author span {
  font-size: 0.8125rem;
  color: rgba(255,255,255,.55);
}

/* ---------------------------------------------------------------
   10. CONTACT SECTION
--------------------------------------------------------------- */
.contact__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3xl);
  align-items: start;
}

@media (min-width: 900px) {
  .contact__grid {
    grid-template-columns: 1fr 1.4fr;
  }
}

.contact__info .section__eyebrow { margin-bottom: var(--space-xs); }
.contact__info .section__title   { margin-bottom: var(--space-md); }

.contact__info > p {
  color: var(--color-text-muted);
  margin-bottom: var(--space-2xl);
  max-width: 45ch;
}

.contact__details {
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
}

.contact__detail-item {
  display: flex;
  gap: var(--space-md);
  align-items: flex-start;
}

.contact__detail-icon {
  flex-shrink: 0;
  width: 2.5rem;
  height: 2.5rem;
  background: var(--color-surface);
  color: var(--color-steel);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  margin-top: 0.1em;
}

.contact__detail-item a {
  color: var(--color-steel);
  text-decoration: underline;
  text-decoration-color: transparent;
  transition: text-decoration-color var(--transition-fast), color var(--transition-fast);
}
.contact__detail-item a:hover {
  color: var(--color-accent);
  text-decoration-color: var(--color-accent);
}

/* ---------------------------------------------------------------
   11. CONTACT FORM
--------------------------------------------------------------- */
.contact-form {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

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

@media (min-width: 480px) {
  .form-row { grid-template-columns: 1fr 1fr; }
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.form-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text);
}

.form-optional {
  font-weight: 400;
  color: var(--color-text-light);
}

.required {
  color: var(--color-accent);
  margin-left: 1px;
}

/* Input / Select / Textarea */
.form-input {
  padding: 0.75rem 1rem;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 0.9375rem;
  color: var(--color-text);
  background: var(--color-white);
  width: 100%;
  transition:
    border-color var(--transition-fast),
    box-shadow var(--transition-fast);
  appearance: none;
  -webkit-appearance: none;
}

.form-input::placeholder {
  color: var(--color-text-light);
}

.form-input:focus {
  outline: none;
  border-color: var(--color-steel);
  box-shadow: 0 0 0 3px rgba(44,95,138,.15);
}

/* Validation states */
.form-input.is-invalid {
  border-color: var(--color-error);
  box-shadow: 0 0 0 3px rgba(217,83,79,.12);
}
.form-input.is-valid {
  border-color: var(--color-success);
}

.form-error {
  font-size: 0.8125rem;
  color: var(--color-error);
  min-height: 1.1em;
  display: block;
}

/* Select arrow */
.form-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%235a6a7a' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
  cursor: pointer;
}

/* Textarea */
.form-textarea {
  resize: vertical;
  min-height: 130px;
}

/* Checkbox group */
.form-group--checkbox {
  flex-direction: column;
}

.form-checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  font-size: 0.875rem;
  color: var(--color-text-muted);
  cursor: pointer;
  line-height: 1.5;
}

.form-checkbox-label a {
  color: var(--color-steel);
  text-decoration: underline;
}

/* Hide native checkbox */
.form-checkbox {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

/* Custom checkbox */
.form-checkbox-custom {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 1.125rem;
  height: 1.125rem;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-white);
  margin-top: 0.1em;
  transition:
    background-color var(--transition-fast),
    border-color var(--transition-fast);
}

.form-checkbox:checked + .form-checkbox-custom {
  background: var(--color-accent);
  border-color: var(--color-accent);
}

.form-checkbox:checked + .form-checkbox-custom::after {
  content: '';
  display: block;
  width: 0.3125rem;
  height: 0.5625rem;
  border: 2px solid white;
  border-top: none;
  border-left: none;
  transform: rotate(45deg) translate(-1px, -1px);
}

.form-checkbox:focus-visible + .form-checkbox-custom {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
}

.form-note {
  font-size: 0.8125rem;
  color: var(--color-text-light);
  text-align: center;
}

/* Form success message */
.form-success {
  background: rgba(34, 160, 107, .08);
  border: 1px solid var(--color-success);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
}

.form-success__icon {
  font-size: 2rem;
  color: var(--color-success);
  background: rgba(34, 160, 107, .12);
  width: 3.5rem;
  height: 3.5rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-sm);
}

.form-success strong {
  font-size: 1.125rem;
  color: var(--color-success);
}

.form-success p {
  color: var(--color-text-muted);
  font-size: 0.9375rem;
}

/* ---------------------------------------------------------------
   12. FOOTER
--------------------------------------------------------------- */
.site-footer {
  background: var(--color-slate);
  color: rgba(255,255,255,.75);
}

.footer__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2xl);
  padding-block: var(--space-4xl);
}

@media (min-width: 640px) {
  .footer__grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .footer__grid { grid-template-columns: 2fr 1fr 1fr 1.5fr; }
}

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

.footer__tagline {
  font-size: 0.9rem;
  line-height: 1.65;
  color: rgba(255,255,255,.6);
  max-width: 32ch;
}

.footer__nav-title {
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-white);
  margin-bottom: var(--space-md);
}

.footer__nav-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer__nav-list a {
  font-size: 0.9rem;
  color: rgba(255,255,255,.6);
  transition: color var(--transition-fast);
}

.footer__nav-list a:hover {
  color: var(--color-accent);
}

/* Mandatory legal links get extra emphasis */
.footer__legal-link {
  font-weight: 600 !important;
  color: rgba(255,255,255,.8) !important;
}

.footer__legal-link:hover {
  color: var(--color-accent) !important;
}

.footer__address {
  margin-top: var(--space-xl);
  font-size: 0.875rem;
  color: rgba(255,255,255,.5);
  line-height: 1.8;
}

.footer__address a {
  color: rgba(255,255,255,.5);
  transition: color var(--transition-fast);
}

.footer__address a:hover {
  color: var(--color-accent);
}

/* Footer bottom bar */
.footer__bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  padding-block: var(--space-lg);
}

.footer__bottom-inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  align-items: center;
  text-align: center;
}

@media (min-width: 640px) {
  .footer__bottom-inner {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

.footer__copy {
  font-size: 0.8125rem;
  color: rgba(255,255,255,.4);
}

.footer__bottom-legal {
  font-size: 0.8125rem;
  color: rgba(255,255,255,.4);
  display: flex;
  gap: var(--space-xs);
}

.footer__bottom-legal a {
  color: rgba(255,255,255,.55);
  transition: color var(--transition-fast);
}

.footer__bottom-legal a:hover {
  color: var(--color-accent);
}

/* ---------------------------------------------------------------
   13. SCROLL REVEAL ANIMATION
   Elements with `.reveal` start invisible and slide up,
   becoming visible via IntersectionObserver in JS.
--------------------------------------------------------------- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition:
    opacity 0.6s ease,
    transform 0.6s ease;
}

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

/* Stagger delay for grid children (cascade effect) */
.services__grid  .reveal:nth-child(2),
.projects__grid  .reveal:nth-child(2),
.testimonials__grid .testimonial-card:nth-child(2) {
  transition-delay: 0.1s;
}

.services__grid  .reveal:nth-child(3),
.projects__grid  .reveal:nth-child(3),
.testimonials__grid .testimonial-card:nth-child(3) {
  transition-delay: 0.2s;
}

.services__grid  .reveal:nth-child(4) { transition-delay: 0.15s; }
.services__grid  .reveal:nth-child(5) { transition-delay: 0.25s; }
.services__grid  .reveal:nth-child(6) { transition-delay: 0.30s; }

/* ---------------------------------------------------------------
   14. SCROLLBAR STYLING (Webkit)
--------------------------------------------------------------- */
::-webkit-scrollbar               { width: 10px; }
::-webkit-scrollbar-track         { background: var(--color-surface-dk); }
::-webkit-scrollbar-thumb         { background: var(--color-steel); border-radius: var(--radius-full); }
::-webkit-scrollbar-thumb:hover   { background: var(--color-accent); }

/* ---------------------------------------------------------------
   15. FOCUS VISIBLE GLOBAL OVERRIDE
   Ensures keyboard users always see a visible focus ring.
--------------------------------------------------------------- */
:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* ---------------------------------------------------------------
   16. PRINT STYLES (basic)
--------------------------------------------------------------- */
@media print {
  .site-header,
  .cookie-banner,
  .hero__scroll-arrow,
  .hamburger { display: none !important; }

  body { color: #000; }
  a    { text-decoration: underline; }
}