/* ==========================================================================
   Base styles
   ========================================================================== */

:root {
  /* Colors */
  --color-primary: #1e56a0;
  --color-primary-light: #3a7fd5;
  --color-primary-dark: #0f3b78;
  --color-secondary: #f5f7fa;
  --color-text: #1a1a2e;
  --color-text-light: #4a4a68;
  --color-white: #ffffff;
  --color-light-gray: #f8f9fa;
  --color-border: #e9ecef;
  --color-success: #28a745;
  --color-error: #dc3545;

  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 3rem;
  --spacing-xl: 5rem;
  
  /* Border radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-medium: 0.3s ease;
  --transition-slow: 0.5s ease;
  
  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

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

body {
  font-family: var(--font-primary);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* Dark theme */
.dark-theme,
.dark-pref body {
  --color-primary: #4e89e8;
  --color-primary-light: #6a9eef;
  --color-primary-dark: #2d6ad8;
  --color-secondary: #1a1a2e;
  --color-text: #f0f0f0;
  --color-text-light: #c5c5d2;
  --color-white: #121225;
  --color-light-gray: #1e1e32;
  --color-border: #2f2f4a;
  --color-success: #5cb85c;
  --color-error: #d9534f;
  
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.25);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.3);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  margin-top: 0;
  margin-bottom: var(--spacing-sm);
  line-height: 1.2;
  font-weight: 600;
  color: var(--color-text);
}

h1 {
  font-size: 2.5rem;
}

h2 {
  font-size: 2rem;
}

h3 {
  font-size: 1.5rem;
}

h4 {
  font-size: 1.25rem;
}

p {
  margin-top: 0;
  margin-bottom: var(--spacing-sm);
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-primary-light);
}

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

/* Container */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* ==========================================================================
   Layout
   ========================================================================== */

/* Section styles */
section {
  padding: var(--spacing-xl) 0;
}

.section-header {
  margin-bottom: var(--spacing-lg);
  text-align: center;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.section-title {
  font-size: 2.25rem;
  margin-bottom: var(--spacing-xs);
}

.section-subtitle {
  font-size: 1.25rem;
  color: var(--color-text-light);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

/* ==========================================================================
   Components
   ========================================================================== */

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  font-weight: 500;
  line-height: 1.4;
  text-align: center;
  text-decoration: none;
  white-space: nowrap;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  border: 1px solid transparent;
}

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

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

.btn--secondary {
  background-color: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn--secondary:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: var(--color-white);
  box-shadow: var(--shadow-sm);
  z-index: 1000;
  transition: background-color var(--transition-medium), box-shadow var(--transition-medium);
  padding: 1rem 0;
}

.header.scrolled {
  padding: 0.75rem 0;
  box-shadow: var(--shadow-md);
}

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

.logo {
  display: block;
}

.logo img {
  height: 40px;
  width: auto;
}

/* Navigation */
.nav__list {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav__item:not(:last-child) {
  margin-right: var(--spacing-sm);
}

.nav__link {
  display: block;
  padding: 0.5rem;
  color: var(--color-text);
  font-weight: 500;
  transition: color var(--transition-fast);
}

.nav__link:hover, 
.nav__link.active {
  color: var(--color-primary);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.nav-toggle__line {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-text);
  transition: all var(--transition-fast);
}

.nav-toggle__line:not(:last-child) {
  margin-bottom: 5px;
}

/* Language Switch */
.language-switch {
  display: flex;
  align-items: center;
  margin-left: var(--spacing-sm);
  font-size: 0.875rem;
  font-weight: 500;
}

.language-switch span {
  margin: 0 0.25rem;
  color: var(--color-text-light);
}

.language-link {
  padding: 0.25rem;
  color: var(--color-text-light);
  transition: color var(--transition-fast);
}

.language-link:hover {
  color: var(--color-primary);
}

.language-link.active {
  color: var(--color-primary);
  font-weight: 600;
}

/* Theme Switch */
.theme-switch {
  margin-left: var(--spacing-sm);
}

.theme-switch__label {
  position: relative;
  display: inline-block;
  width: 50px;
  height: 26px;
  cursor: pointer;
}

.theme-switch__input {
  opacity: 0;
  width: 0;
  height: 0;
}

.theme-switch__toggle {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--color-light-gray);
  border-radius: 34px;
  transition: var(--transition-fast);
}

.theme-switch__toggle:before {
  position: absolute;
  content: "";
  height: 20px;
  width: 20px;
  left: 3px;
  bottom: 3px;
  background-color: var(--color-white);
  border-radius: 50%;
  transition: var(--transition-fast);
}

.theme-switch__input:checked + .theme-switch__toggle {
  background-color: var(--color-primary);
}

.theme-switch__input:checked + .theme-switch__toggle:before {
  transform: translateX(24px);
}

/* Hero section */
.hero {
  padding-top: calc(var(--spacing-xl) + 60px);
  padding-bottom: var(--spacing-xl);
  background-color: var(--color-secondary);
}

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

.hero__content {
  flex: 1;
}

.hero__image {
  flex: 1;
  display: flex;
  justify-content: flex-end;
}

.hero__title {
  font-size: 3rem;
  margin-bottom: var(--spacing-sm);
}

.hero__subtitle {
  font-size: 1.25rem;
  color: var(--color-text-light);
  margin-bottom: var(--spacing-md);
}

.hero__cta {
  display: flex;
  gap: var(--spacing-sm);
}

/* Services section */
.services__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: var(--spacing-md);
}

.service-card {
  padding: var(--spacing-md);
  background-color: var(--color-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-medium), box-shadow var(--transition-medium);
}

.service-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.service-card__icon {
  margin-bottom: var(--spacing-sm);
  color: var(--color-primary);
}

.service-card__title {
  margin-bottom: var(--spacing-xs);
}

.service-card__description {
  color: var(--color-text-light);
  margin-bottom: var(--spacing-sm);
}

.service-card__link {
  display: inline-block;
  font-weight: 500;
  position: relative;
}

.service-card__link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-primary);
  transition: width var(--transition-medium);
}

.service-card__link:hover::after {
  width: 100%;
}

/* Why Us section */
.why-us {
  background-color: var(--color-secondary);
}

.why-us__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: var(--spacing-md);
}

.feature {
  text-align: center;
  padding: var(--spacing-md);
  background-color: var(--color-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-medium);
}

.feature:hover {
  transform: translateY(-5px);
}

.feature__icon {
  margin-bottom: var(--spacing-sm);
  color: var(--color-primary);
  display: flex;
  justify-content: center;
}

.feature__title {
  margin-bottom: var(--spacing-xs);
}

.feature__description {
  color: var(--color-text-light);
}

/* Projects section */
.projects__slider {
  overflow: hidden;
  margin-bottom: var(--spacing-md);
}

.project-card {
  display: flex;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  background-color: var(--color-white);
}

.project-card__image {
  flex: 1;
  min-width: 300px;
}

.project-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.project-card__content {
  flex: 1;
  padding: var(--spacing-md);
}

.project-card__title {
  margin-bottom: var(--spacing-xs);
}

.project-card__description {
  color: var(--color-text-light);
  margin-bottom: var(--spacing-sm);
}

.project-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: var(--spacing-sm);
}

.tag {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background-color: var(--color-secondary);
  color: var(--color-text-light);
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
}

.project-card__link {
  font-weight: 500;
}

.projects__controls,
.testimonials__controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
}

.slider-button {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: none;
  background-color: var(--color-white);
  color: var(--color-text);
  box-shadow: var(--shadow-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.slider-button:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
}

.slider-dots {
  display: flex;
  gap: 0.5rem;
}

.slider-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: none;
  background-color: var(--color-border);
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.slider-dot.active,
.slider-dot:hover {
  background-color: var(--color-primary);
}

/* Testimonials section */
.testimonials {
  background-color: var(--color-secondary);
}

.testimonials__slider {
  overflow: hidden;
  margin-bottom: var(--spacing-md);
}

.testimonial {
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-md);
  box-shadow: var(--shadow-md);
}

.testimonial__quote {
  font-size: 1.125rem;
  line-height: 1.6;
  margin-bottom: var(--spacing-md);
  position: relative;
  padding: 0 var(--spacing-sm);
}

.testimonial__quote::before,
.testimonial__quote::after {
  content: '"';
  font-size: 2rem;
  color: var(--color-primary);
  opacity: 0.3;
}

.testimonial__quote::before {
  position: absolute;
  left: -var(--spacing-sm);
  top: -0.5rem;
}

.testimonial__quote::after {
  position: relative;
  line-height: 0;
  margin-left: 0.25rem;
}

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

.testimonial__author-image {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  object-fit: cover;
}

.testimonial__author-name {
  font-weight: 600;
  margin-bottom: 0;
}

.testimonial__author-title {
  font-size: 0.875rem;
  color: var(--color-text-light);
  margin-bottom: 0;
}

/* CTA section */
.cta {
  padding: var(--spacing-xl) 0;
}

.cta__inner {
  background-color: var(--color-primary);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  text-align: center;
  color: var(--color-white);
}

.cta__title {
  color: var(--color-white);
  margin-bottom: var(--spacing-sm);
}

.cta__text {
  font-size: 1.125rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: var(--spacing-md);
}

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

.cta .btn--primary:hover {
  background-color: var(--color-light-gray);
}

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

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

.footer__brand {
  max-width: 300px;
}

.footer__tagline {
  margin-top: var(--spacing-xs);
  color: rgba(255, 255, 255, 0.7);
}

.footer__social {
  margin-top: var(--spacing-sm);
  display: flex;
  gap: var(--spacing-sm);
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.1);
  color: var(--color-white);
  transition: background-color var(--transition-fast);
}

.social-link:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
}

.footer__heading {
  font-size: 1.125rem;
  margin-bottom: var(--spacing-sm);
  color: var(--color-white);
}

.footer__menu {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer__menu li:not(:last-child) {
  margin-bottom: 0.5rem;
}

.footer__menu a {
  color: rgba(255, 255, 255, 0.7);
  transition: color var(--transition-fast);
}

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

.footer__contact-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer__contact-list li {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 1rem;
  color: rgba(255, 255, 255, 0.7);
}

.footer__contact-list svg {
  flex-shrink: 0;
  margin-top: 3px;
  color: var(--color-primary);
}

.footer__bottom {
  padding-top: var(--spacing-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(--spacing-sm);
}

.footer__copyright {
  color: rgba(255, 255, 255, 0.5);
  margin: 0;
}

.footer__bottom-links {
  display: flex;
  gap: var(--spacing-md);
}

.footer__bottom-links a {
  color: rgba(255, 255, 255, 0.5);
  transition: color var(--transition-fast);
}

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

/* ==========================================================================
   Animations & Effects
   ========================================================================== */

/* Fade in animation */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  opacity: 0;
  animation: fadeIn 0.8s ease forwards;
}

/* Custom cursor */
.custom-cursor {
  position: fixed;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background-color: rgba(30, 86, 160, 0.3);
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  transition: all 0.1s ease;
  display: none;
}

.cursor-active .custom-cursor {
  display: block;
}

/* ==========================================================================
   Media Queries
   ========================================================================== */

@media (max-width: 1200px) {
  html {
    font-size: 15px;
  }
  
  .hero__title {
    font-size: 2.5rem;
  }
}

@media (max-width: 992px) {
  .hero__inner {
    flex-direction: column;
  }
  
  .hero__content {
    text-align: center;
    margin-bottom: var(--spacing-lg);
  }
  
  .hero__cta {
    justify-content: center;
  }
  
  .footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
  }
  
  .projects__slider,
  .testimonials__slider {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scroll-snap-type: x mandatory;
    display: flex;
    gap: var(--spacing-md);
  }
  
  .project-card,
  .testimonial {
    min-width: 85%;
    scroll-snap-align: start;
  }
}

@media (max-width: 768px) {
  html {
    font-size: 14px;
  }
  
  section {
    padding: var(--spacing-lg) 0;
  }
  
  .nav {
    position: fixed;
    top: 60px;
    left: 0;
    width: 100%;
    height: 0;
    background-color: var(--color-white);
    overflow: hidden;
    transition: height var(--transition-medium);
    box-shadow: var(--shadow-sm);
  }
  
  .nav.active {
    height: auto;
  }
  
  .nav__list {
    flex-direction: column;
    padding: var(--spacing-md);
  }
  
  .nav__item:not(:last-child) {
    margin-right: 0;
    margin-bottom: var(--spacing-xs);
  }
  
  .nav-toggle {
    display: block;
  }
  
  .project-card {
    flex-direction: column;
  }
  
  .project-card__image {
    min-width: 100%;
  }
  
  .footer__grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }
  
  .footer__bottom {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .nav-toggle.active .nav-toggle__line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }
  
  .nav-toggle.active .nav-toggle__line:nth-child(2) {
    opacity: 0;
  }
  
  .nav-toggle.active .nav-toggle__line:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
  }
}

@media (max-width: 576px) {
  .hero__title {
    font-size: 2rem;
  }
  
  .section-title {
    font-size: 1.75rem;
  }
  
  .hero__cta {
    flex-direction: column;
    gap: var(--spacing-xs);
  }
  
  .services__grid,
  .why-us__grid {
    grid-template-columns: 1fr;
  }
  
  .project-card,
  .testimonial {
    min-width: 95%;
  }
}
/* ==========================================================================
   Shared content components (2026 update)
   ========================================================================== */

.logo img { height: 36px; }

.page-hero {
  padding-top: calc(var(--spacing-xl) + 60px);
  padding-bottom: var(--spacing-lg);
  background-color: var(--color-secondary);
  text-align: center;
}
.page-hero__inner { max-width: 820px; margin: 0 auto; }
.page-hero__title { font-size: 2.75rem; margin-bottom: var(--spacing-sm); }
.page-hero__subtitle { font-size: 1.2rem; color: var(--color-text-light); margin-bottom: 0; }
.page-hero__meta { margin-top: var(--spacing-sm); font-size: 0.875rem; color: var(--color-text-light); }

.breadcrumbs { font-size: 0.875rem; color: var(--color-text-light); margin-bottom: var(--spacing-sm); }
.breadcrumbs ol { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; justify-content: center; gap: 0.35rem; }
.breadcrumbs li + li::before { content: "/"; margin-right: 0.35rem; color: var(--color-border); }
.breadcrumbs a { color: var(--color-text-light); }
.breadcrumbs a:hover { color: var(--color-primary); }

/* Long-form text */
.prose { max-width: 780px; margin: 0 auto; font-size: 1.0625rem; line-height: 1.75; }
.prose h2 { font-size: 1.75rem; margin-top: var(--spacing-lg); }
.prose h3 { font-size: 1.3rem; margin-top: var(--spacing-md); }
.prose h2:first-child { margin-top: 0; }
.prose ul, .prose ol { padding-left: 1.5rem; margin: 0 0 var(--spacing-sm); }
.prose li { margin-bottom: 0.4rem; }
.prose a { text-decoration: underline; text-underline-offset: 2px; }
.prose code { font-size: 0.9em; background: var(--color-light-gray); padding: 0.1em 0.35em; border-radius: var(--radius-sm); }
.prose .lead { font-size: 1.2rem; color: var(--color-text-light); }
.table-wrap { overflow-x: auto; margin: 0 0 var(--spacing-md); -webkit-overflow-scrolling: touch; }
.prose table { width: 100%; border-collapse: collapse; font-size: 0.95rem; min-width: 520px; }
.prose th, .prose td { text-align: left; vertical-align: top; padding: 0.6rem 0.75rem; border-bottom: 1px solid var(--color-border); }
.prose th { background: var(--color-secondary); font-weight: 600; }
.callout { background: var(--color-secondary); border-left: 4px solid var(--color-primary); border-radius: var(--radius-sm); padding: var(--spacing-sm) var(--spacing-md); margin: var(--spacing-md) 0; }
.callout p:last-child { margin-bottom: 0; }
.toc { background: var(--color-secondary); border-radius: var(--radius-md); padding: var(--spacing-sm) var(--spacing-md); margin-bottom: var(--spacing-md); }
.toc strong { display: block; margin-bottom: 0.4rem; }
.toc ol { margin: 0; }
.related { max-width: 780px; margin: var(--spacing-lg) auto 0; padding-top: var(--spacing-md); border-top: 1px solid var(--color-border); }
.related h2 { font-size: 1.35rem; }
.related ul { padding-left: 1.25rem; }

/* Cards (guides, portfolio, services hub) */
.card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(300px, 100%), 1fr)); gap: var(--spacing-md); }
.card { display: flex; flex-direction: column; background: var(--color-white); border: 1px solid var(--color-border); border-radius: var(--radius-md); padding: var(--spacing-md); box-shadow: var(--shadow-sm); transition: transform var(--transition-medium), box-shadow var(--transition-medium); }
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.card__kicker { font-size: 0.8rem; font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase; color: var(--color-primary); margin-bottom: 0.4rem; }
.card__title { font-size: 1.25rem; margin-bottom: 0.5rem; }
.card__title a { color: var(--color-text); }
.card__title a:hover { color: var(--color-primary); }
.card__text { color: var(--color-text-light); flex: 1; }
.card__link { font-weight: 500; margin-top: var(--spacing-xs); }
.card .project-card__tags { margin-bottom: var(--spacing-sm); }
.section--alt { background-color: var(--color-secondary); }

/* Process steps */
.steps { list-style: none; counter-reset: step; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(min(230px, 100%), 1fr)); gap: var(--spacing-md); }
.steps li { counter-increment: step; background: var(--color-white); border-radius: var(--radius-md); padding: var(--spacing-md); box-shadow: var(--shadow-sm); }
.steps li::before { content: counter(step, decimal-leading-zero); display: block; font-size: 1.5rem; font-weight: 700; color: var(--color-primary); margin-bottom: 0.5rem; }
.steps h3 { font-size: 1.15rem; margin-bottom: 0.4rem; }
.steps p { color: var(--color-text-light); margin: 0; }

/* Service intro aside (replaces missing photos) */
.service-aside { background: var(--color-secondary); border-radius: var(--radius-lg); padding: var(--spacing-md); }
.service-aside h3 { font-size: 1.15rem; }
.service-aside ul { padding-left: 1.25rem; margin: 0; }
.service-aside li { margin-bottom: 0.4rem; color: var(--color-text-light); }

/* Hero illustration */
.hero__art { width: 100%; max-width: 560px; color: var(--color-primary); }
.hero__art svg { width: 100%; height: auto; display: block; }

/* FAQ using native details/summary */
details.faq-item .faq-item__answer,
details.faq-item .faq-answer { max-height: none; overflow: visible; }
details.faq-item > summary { list-style: none; }
details.faq-item > summary::-webkit-details-marker { display: none; }
details.faq-item > summary { padding-right: 3rem; }
details.faq-item[open] > summary::after { content: '\2212'; }

/* 404 */
.error-section { padding-top: calc(var(--spacing-xl) + 60px); text-align: center; min-height: 60vh; }
.error-code { font-size: 6rem; line-height: 1; color: var(--color-primary); margin-bottom: var(--spacing-xs); }
.error-title { font-size: 2rem; }
.error-description { color: var(--color-text-light); max-width: 560px; margin: 0 auto var(--spacing-md); }
.error-actions { display: flex; flex-wrap: wrap; gap: var(--spacing-sm); justify-content: center; margin-bottom: var(--spacing-lg); }
.error-links { list-style: none; padding: 0; display: flex; flex-wrap: wrap; justify-content: center; gap: 0.5rem 1.5rem; }

/* Calculator */
.calc { background: var(--color-white); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: var(--spacing-md); box-shadow: var(--shadow-sm); margin: var(--spacing-md) 0; }
.calc fieldset { border: 0; padding: 0; margin: 0 0 var(--spacing-sm); }
.calc legend { font-weight: 600; margin-bottom: 0.5rem; font-size: 1.05rem; }
.calc__grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(220px, 100%), 1fr)); gap: 0.75rem 1rem; }
.calc label { display: block; font-size: 0.9rem; font-weight: 500; margin-bottom: 0.25rem; }
.calc input { width: 100%; padding: 0.55rem 0.7rem; font: inherit; font-size: 1rem; color: var(--color-text); background: var(--color-white); border: 1px solid var(--color-border); border-radius: var(--radius-sm); }
.calc input:focus { outline: 2px solid var(--color-primary-light); outline-offset: 1px; }
.calc__results { background: var(--color-secondary); border-radius: var(--radius-md); padding: var(--spacing-sm) var(--spacing-md); margin-top: var(--spacing-sm); }
.calc__results dl { display: grid; grid-template-columns: 1fr auto; gap: 0.4rem 1rem; margin: 0; }
.calc__results dt { color: var(--color-text-light); }
.calc__results dd { margin: 0; font-weight: 600; text-align: right; font-variant-numeric: tabular-nums; }
.calc__results .calc__total { font-size: 1.15rem; color: var(--color-primary); }
.calc__note { font-size: 0.875rem; color: var(--color-text-light); margin-top: 0.75rem; margin-bottom: 0; }

/* Contact (email based) */
.contact-email { font-size: 1.25rem; font-weight: 600; word-break: break-all; }
.form-note { font-size: 0.875rem; color: var(--color-text-light); margin: 0; }

.footer__note { color: rgba(255, 255, 255, 0.55); font-size: 0.875rem; margin-top: var(--spacing-sm); }
.footer__contact-list a { color: rgba(255, 255, 255, 0.7); }
.footer__contact-list a:hover { color: var(--color-white); }
.theme-switch__input:focus-visible + .theme-switch__toggle { outline: 2px solid var(--color-primary-light); outline-offset: 2px; }

@media (max-width: 1100px) {
  .nav__item:not(:last-child) { margin-right: 0.25rem; }
  .nav__link { padding: 0.5rem 0.4rem; font-size: 0.95rem; }
}
@media (max-width: 992px) {
  .page-hero__title { font-size: 2.25rem; }
  .hero__image { justify-content: center; }
}
@media (max-width: 900px) and (min-width: 769px) {
  .nav__link { font-size: 0.875rem; padding: 0.4rem 0.3rem; }
}
@media (max-width: 768px) {
  .page-hero__title { font-size: 1.9rem; }
  .prose { font-size: 1rem; }
  .nav { top: 64px; }
  .nav.active { height: auto; max-height: calc(100vh - 64px); overflow-y: auto; }
  .header__inner { gap: 0.5rem; }
  .language-switch, .theme-switch { margin-left: 0; }
  .logo { margin-right: auto; }
  .error-code { font-size: 4.5rem; }
}

/* Logo variants + skip link */
.logo { display: flex; align-items: center; }
.logo__img--dark { display: none; }
.dark-theme .header .logo__img--light, .dark-pref .header .logo__img--light { display: none; }
.dark-theme .header .logo__img--dark, .dark-pref .header .logo__img--dark { display: block; }
.skip-link { position: absolute; left: -9999px; top: 0; z-index: 2000; background: var(--color-primary); color: #fff; padding: 0.5rem 1rem; border-radius: 0 0 var(--radius-sm) 0; }
.skip-link:focus { left: 0; color: #fff; }
.custom-cursor--grow { width: 40px; height: 40px; background-color: rgba(30, 86, 160, 0.18); }
@media (prefers-reduced-motion: reduce) { .fade-in { animation: none; opacity: 1; } html { scroll-behavior: auto; } }
.visually-hidden { position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
summary.faq-item__question { display: block; font-weight: 600; font-size: 1.1rem; line-height: 1.4; }
.info-card ul { padding-left: 1.2rem; margin: 0; }
.info-card li { margin-bottom: 0.3rem; }
.steps li.fade-in, .card.fade-in { animation-duration: 0.6s; }
/* Footer keeps a dark background in both themes (it used --color-text, which turns light in dark mode) */
.footer { background-color: #1a1a2e; }
.dark-theme .footer, .dark-pref .footer { background-color: #0b0b18; border-top: 1px solid var(--color-border); }
.nav-toggle { -webkit-tap-highlight-color: transparent; }
.footer, .footer__heading { color: #ffffff; }
.cta__inner, .cta__title { color: #ffffff; }
.prose td:first-child { white-space: nowrap; }