/* CSS Custom Properties (Variables) */
:root {
  /* Colors */
  --color-primary: #10b981; /* Lime green */
  --color-primary-dark: #059669;
  --color-primary-light: #34d399;
  --color-secondary: #1f2937; /* Dark gray */
  --color-secondary-light: #374151;
  --color-accent: #f59e0b; /* Amber */
  --color-text: #111827; /* Very dark gray */
  --color-text-secondary: #6b7280; /* Medium gray */
  --color-text-light: #9ca3af; /* Light gray */
  --color-background: #fafafa; /* Off-white */
  --color-background-secondary: #f9fafb;
  --color-border: #e5e7eb;
  --color-border-light: #f3f4f6;
  --color-white: #ffffff;
  --color-black: #000000;

  /* Typography */
  --font-family-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-family-mono: 'JetBrains Mono', 'SF Mono', Monaco, 'Cascadia Code', monospace;

  --font-size-xs: 0.75rem; /* 12px */
  --font-size-sm: 0.875rem; /* 14px */
  --font-size-base: 1rem; /* 16px */
  --font-size-lg: 1.125rem; /* 18px */
  --font-size-xl: 1.25rem; /* 20px */
  --font-size-2xl: 1.5rem; /* 24px */
  --font-size-3xl: 1.875rem; /* 30px */
  --font-size-4xl: 2.25rem; /* 36px */
  --font-size-5xl: 3rem; /* 48px */
  --font-size-6xl: 3.75rem; /* 60px */

  --font-weight-light: 300;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;

  --line-height-tight: 1.25;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;

  /* Spacing */
  --spacing-1: 0.25rem; /* 4px */
  --spacing-2: 0.5rem; /* 8px */
  --spacing-3: 0.75rem; /* 12px */
  --spacing-4: 1rem; /* 16px */
  --spacing-5: 1.25rem; /* 20px */
  --spacing-6: 1.5rem; /* 24px */
  --spacing-8: 2rem; /* 32px */
  --spacing-10: 2.5rem; /* 40px */
  --spacing-12: 3rem; /* 48px */
  --spacing-16: 4rem; /* 64px */
  --spacing-20: 5rem; /* 80px */
  --spacing-24: 6rem; /* 96px */
  --spacing-32: 8rem; /* 128px */

  /* Layout */
  --container-max-width: 1200px;
  --header-height: 4rem;
  --border-radius-sm: 0.25rem; /* 4px */
  --border-radius-md: 0.5rem; /* 8px */
  --border-radius-lg: 0.75rem; /* 12px */
  --border-radius-xl: 1rem; /* 16px */
  --border-radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-normal: 300ms ease-in-out;
  --transition-slow: 500ms ease-in-out;
}

/* CSS Reset & Base Styles */
*, *::before, *::after {
  box-sizing: border-box;
}

* {
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  line-height: var(--line-height-normal);
  -webkit-text-size-adjust: 100%;
  -moz-tab-size: 4;
  tab-size: 4;
}

body {
  font-family: var(--font-family-primary);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-normal);
  color: var(--color-text);
  background-color: var(--color-background);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: var(--font-weight-semibold);
  line-height: var(--line-height-tight);
  color: var(--color-text);
}

h1 {
  font-size: var(--font-size-5xl);
}

h2 {
  font-size: var(--font-size-4xl);
}

h3 {
  font-size: var(--font-size-3xl);
}

h4 {
  font-size: var(--font-size-2xl);
}

h5 {
  font-size: var(--font-size-xl);
}

h6 {
  font-size: var(--font-size-lg);
}

p {
  margin-bottom: var(--spacing-4);
  line-height: var(--line-height-relaxed);
}

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

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

a:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Lists */
ul, ol {
  padding-left: var(--spacing-6);
}

li {
  margin-bottom: var(--spacing-2);
}

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

/* Form Elements */
input, textarea, select {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
}

/* Utility Classes */
.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;
}

.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-4);
}

@media (min-width: 640px) {
  .container {
    padding: 0 var(--spacing-6);
  }
}

@media (min-width: 1024px) {
  .container {
    padding: 0 var(--spacing-8);
  }
}

/* Section Titles */
.section-title {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-bold);
  text-align: center;
  margin-bottom: var(--spacing-4);
  color: var(--color-text);
}

.section-subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  text-align: center;
  margin-bottom: var(--spacing-12);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-3) var(--spacing-6);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  line-height: var(--line-height-tight);
  text-decoration: none;
  border: none;
  border-radius: var(--border-radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  min-height: 44px; /* Minimum touch target */
}

.btn:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

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

.btn--primary:hover {
  background-color: var(--color-primary);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

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

.btn--secondary:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn--full {
  width: 100%;
}

/* Header & Navigation */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  z-index: 1000;
  transition: transform var(--transition-normal);
}

.header--hidden {
  transform: translateY(-100%);
}

.nav {
  height: var(--header-height);
}

.nav__container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-4);
}

@media (min-width: 640px) {
  .nav__container {
    padding: 0 var(--spacing-6);
  }
}

@media (min-width: 1024px) {
  .nav__container {
    padding: 0 var(--spacing-8);
  }
}

.nav__logo {
  display: flex;
  align-items: center;
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
}

.nav__logo-image {
  height: 2rem;
  width: auto;
  margin-right: var(--spacing-2);
}

.nav__logo-svg {
  height: 3.75rem;
  width: 3.75rem;
  margin-right: var(--spacing-2);
  flex-shrink: 0;
  transition: transform 0.3s ease;
}

.nav__logo-svg:hover {
  transform: scale(1.05);
}

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

@media (min-width: 768px) {
  .nav__list {
    display: flex;
    gap: var(--spacing-8);
  }
}

.nav__item {
  margin: 0;
}

.nav__link {
  color: var(--color-text-secondary);
  font-weight: var(--font-weight-medium);
  padding: var(--spacing-2);
  border-radius: var(--border-radius-sm);
  transition: color var(--transition-fast);
}

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

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

.nav__toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

@media (min-width: 768px) {
  .nav__toggle {
    display: none;
  }
}

.nav__toggle-line {
  width: 100%;
  height: 2px;
  background-color: var(--color-text);
  margin: 2px 0;
  transition: all var(--transition-fast);
  transform-origin: center;
}

.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(7px, -6px);
}

/* Hero Section */
.hero {
  padding: calc(var(--header-height) + var(--spacing-16)) 0 var(--spacing-20);
  background: linear-gradient(135deg, var(--color-background) 0%, var(--color-background-secondary) 100%);
}

.hero__container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-4);
}

@media (min-width: 640px) {
  .hero__container {
    padding: 0 var(--spacing-6);
  }
}

@media (min-width: 1024px) {
  .hero__container {
    padding: 0 var(--spacing-8);
  }
}





.hero__title {
  font-size: var(--font-size-5xl);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  margin-bottom: var(--spacing-6);
  color: var(--color-text);
}

@media (min-width: 768px) {
  .hero__title {
    font-size: var(--font-size-6xl);
  }
}

.hero__subtitle {
  font-size: var(--font-size-xl);
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-8);
  max-width: 600px;
}

.hero__contact-row {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: var(--spacing-4);
  margin-bottom: var(--spacing-8);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.hero__contact-link {
  color: var(--color-primary);
  font-weight: var(--font-weight-medium);
}

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

.hero__location {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-2);
  color: var(--color-text-secondary);
  font-weight: var(--font-weight-medium);
}

.hero__actions {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-4);
  align-items: center;
}

@media (min-width: 480px) {
  .hero__actions {
    flex-direction: row;
    justify-content: flex-start;
    align-items: flex-start;
  }
}

.hero__visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

@media (min-width: 768px) {
  .hero__visual {
    justify-content: flex-end;
  }
}

.hero__image {
  max-width: 100%;
  height: auto;
  /*border-radius: var(--border-radius-lg);*/
  /*box-shadow: var(--shadow-lg);*/
}

.hero__svg-icon {
  max-width: 100%;
  height: auto;
  filter: drop-shadow(var(--shadow-lg));
  transition: transform 0.3s ease;
}

.hero__svg-icon:hover {
  transform: scale(1.05);
}

/* New hero layout columns */
.hero__content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-4);
}

@media (min-width: 768px) {
  .hero__content {
    flex-direction: row;
    gap: var(--spacing-8);
  }
}

.hero__left-column {
  flex: 2;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-6);
}

.hero__right-column {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
}

@media (min-width: 768px) {
  .hero__right-column {
    justify-content: flex-end;
  }
}

/* Services Section */
.services {
  padding: var(--spacing-20) 0;
}

.services__container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-4);
}

@media (min-width: 640px) {
  .services__container {
    padding: 0 var(--spacing-6);
  }
}

@media (min-width: 1024px) {
  .services__container {
    padding: 0 var(--spacing-8);
  }
}

.services__grid {
  display: grid;
  gap: var(--spacing-8);
}

@media (min-width: 768px) {
  .services__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.service-card {
  background-color: var(--color-white);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-8);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
  border: 1px solid var(--color-border-light);
}

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

.service-card__icon {
  width: auto;
  margin-bottom: var(--spacing-4);
  display: flex;
  align-items: center;
  justify-content: center;
}

.service-card__icon img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.service-card__title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--spacing-4);
  color: var(--color-text);
}

.service-card__description {
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-6);
  line-height: var(--line-height-relaxed);
}

.service-card__features {
  list-style: none;
  padding: 0;
}

.service-card__features li {
  position: relative;
  padding-left: var(--spacing-6);
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  margin-bottom: var(--spacing-2);
}

.service-card__features li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-weight: var(--font-weight-bold);
}

/* Cases Section */
.cases {
  padding: var(--spacing-20) 0;
  background-color: var(--color-background-secondary);
}

.cases__container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-4);
}

@media (min-width: 640px) {
  .cases__container {
    padding: 0 var(--spacing-6);
  }
}

@media (min-width: 1024px) {
  .cases__container {
    padding: 0 var(--spacing-8);
  }
}

.cases__grid {
  display: grid;
  gap: var(--spacing-8);
}

@media (min-width: 768px) {
  .cases__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.case-card {
  background-color: var(--color-white);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
  border: 1px solid var(--color-border-light);
}

.case-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.case-card__thumbnail {
  position: relative;
  width: 100%;
  height: 200px;
  overflow: hidden;
}

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

.case-card:hover .case-card__thumbnail img {
  transform: scale(1.05);
}

.case-card__overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(16, 185, 129, 0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition-normal);
}

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

.case-card__link {
  color: var(--color-white);
  font-weight: var(--font-weight-semibold);
  padding: var(--spacing-3) var(--spacing-6);
  border: 2px solid var(--color-white);
  border-radius: var(--border-radius-md);
  transition: all var(--transition-fast);
}

.case-card__link:hover {
  background-color: var(--color-white);
  color: var(--color-primary);
}

.case-card__content {
  padding: var(--spacing-6);
}

.case-card__title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--spacing-3);
  color: var(--color-text);
}

.case-card__description {
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-4);
  font-size: var(--font-size-sm);
  line-height: var(--line-height-relaxed);
}

.case-card__metrics {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-2);
  margin-bottom: var(--spacing-4);
}

.metric {
  background-color: var(--color-primary);
  color: var(--color-white);
  padding: var(--spacing-1) var(--spacing-3);
  border-radius: var(--border-radius-full);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
}

.case-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-2);
}

.tag {
  background-color: var(--color-background-secondary);
  color: var(--color-text-secondary);
  padding: var(--spacing-1) var(--spacing-3);
  border-radius: var(--border-radius-full);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
}

/* Demo Section */
.demo {
  padding: var(--spacing-20) 0;
}

.demo__container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-4);
}

@media (min-width: 640px) {
  .demo__container {
    padding: 0 var(--spacing-6);
  }
}

@media (min-width: 1024px) {
  .demo__container {
    padding: 0 var(--spacing-8);
  }
}

.demo__grid {
  display: grid;
  gap: var(--spacing-8);
}

@media (min-width: 768px) {
  .demo__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.demo-item {
  background-color: var(--color-white);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-6);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border-light);
}

.demo-item__title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--spacing-4);
  text-align: center;
  color: var(--color-text);
}

.demo-item__video {
  width: 100%;
  border-radius: var(--border-radius-md);
  margin-top: var(--spacing-4);
}

/* Process Section */
.process {
  padding: var(--spacing-20) 0;
  background-color: var(--color-background-secondary);
}

.process__container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-4);
}

@media (min-width: 640px) {
  .process__container {
    padding: 0 var(--spacing-6);
  }
}

@media (min-width: 1024px) {
  .process__container {
    padding: 0 var(--spacing-8);
  }
}

.process__steps {
  display: flex;
  gap: var(--spacing-8);
  overflow-x: auto;
  overflow-y: hidden;
  padding: 0 var(--spacing-4);
  margin: 0 -var(--spacing-4);
  scrollbar-width: thin;
  scrollbar-color: var(--color-border) transparent;
}

.process__steps::-webkit-scrollbar {
  height: 6px;
}

.process__steps::-webkit-scrollbar-track {
  background: transparent;
}

.process__steps::-webkit-scrollbar-thumb {
  background-color: var(--color-border);
  border-radius: var(--border-radius-sm);
}

.process__steps::-webkit-scrollbar-thumb:hover {
  background-color: var(--color-border-light);
}

@media (min-width: 768px) {
  .process__steps {
    padding: 0 var(--spacing-6);
    margin: 0 -var(--spacing-6);
  }
}

@media (min-width: 1200px) {
  .process__steps {
    justify-content: center;
    flex-wrap: wrap;
    overflow-x: visible;
    padding: 0;
    margin: 0;
  }

  .process-step {
    flex: 0 0 auto;
    min-width: 300px;
    max-width: 350px;
  }
}

.process-step {
  text-align: center;
  padding: var(--spacing-8);
  background-color: var(--color-white);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border-light);
  position: relative;
  flex: 0 0 300px;
  min-width: 280px;
}

.process-step::before {
  content: "";
  position: absolute;
  top: -1px;
  left: -1px;
  right: -1px;
  bottom: -1px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  border-radius: var(--border-radius-lg);
  z-index: -1;
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.process-step:hover::before {
  opacity: 0.1;
}

.process-step__number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 4rem;
  height: 4rem;
  background-color: var(--color-primary);
  color: var(--color-white);
  border-radius: var(--border-radius-full);
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--spacing-6);
}

.process-step__title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--spacing-4);
  color: var(--color-text);
}

.process-step__description {
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-6);
  font-size: var(--font-size-sm);
  line-height: var(--line-height-relaxed);
}

.process-step__tasks {
  list-style: none;
  padding: 0;
  text-align: left;
}

.process-step__tasks li {
  position: relative;
  padding-left: var(--spacing-6);
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  margin-bottom: var(--spacing-2);
}

.process-step__tasks li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-weight: var(--font-weight-bold);
}

/* About Section */
.about {
  padding: var(--spacing-20) 0;
}

.about__container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-4);
}

@media (min-width: 640px) {
  .about__container {
    padding: 0 var(--spacing-6);
  }
}

@media (min-width: 1024px) {
  .about__container {
    padding: 0 var(--spacing-8);
  }
}

.about__content {
  display: grid;
  gap: var(--spacing-12);
  align-items: center;
}

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

.about__text {
  order: 2;
}

@media (min-width: 768px) {
  .about__text {
    order: 1;
  }
}

.about__description {
  font-size: var(--font-size-lg);
  line-height: var(--line-height-relaxed);
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-6);
}

.about__skills {
  margin-bottom: var(--spacing-8);
}

.about__skills-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--spacing-4);
  color: var(--color-text);
}

.about__skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: var(--spacing-3);
}

.skill-tag {
  background-color: var(--color-background-secondary);
  color: var(--color-text-secondary);
  padding: var(--spacing-2) var(--spacing-4);
  border-radius: var(--border-radius-md);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  text-align: center;
  border: 1px solid var(--color-border);
  align-content: center;
}

.about__photo {
  order: 1;
  display: flex;
  justify-content: center;
}

@media (min-width: 768px) {
  .about__photo {
    order: 2;
    justify-content: flex-end;
  }
}

.about__image {
  width: 100%;
  max-width: 350px;
  object-fit: cover;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
}

.about__social {
  display: flex;
  justify-content: center;
  gap: var(--spacing-4);
}

@media (min-width: 768px) {
  .about__social {
    justify-content: flex-start;
  }
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 3rem;
  height: 3rem;
  background-color: var(--color-background-secondary);
  border-radius: var(--border-radius-md);
  transition: all var(--transition-fast);
  border: 1px solid var(--color-border);
}

.social-link:hover {
  background-color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.social-icon {
  width: 1.5rem;
  height: 1.5rem;
  fill: var(--color-text-secondary);
  transition: fill var(--transition-fast);
}

.social-link:hover .social-icon {
  fill: var(--color-white);
}

/* Contacts Section */
.contacts {
  padding: var(--spacing-20) 0;
  background-color: var(--color-background-secondary);
}

.contacts__container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-4);
}

@media (min-width: 640px) {
  .contacts__container {
    padding: 0 var(--spacing-6);
  }
}

@media (min-width: 1024px) {
  .contacts__container {
    padding: 0 var(--spacing-8);
  }
}

.contacts__content {
  display: grid;
  gap: var(--spacing-12);
}

@media (min-width: 768px) {
  .contacts__content {
    grid-template-columns: 1fr 2fr;
  }
}

.contacts__info {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-6);
}

.contact-item {
  padding: var(--spacing-6);
  background-color: var(--color-white);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border-light);
}

.contact-item__title {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-2);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.contact-item__link {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-primary);
  transition: color var(--transition-fast);
}

.contact-item__link:hover {
  color: var(--color-primary-dark);
}

.brief-form {
  background-color: var(--color-white);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-8);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border-light);
}

.brief-form__title {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--spacing-2);
  color: var(--color-text);
}

.brief-form__description {
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-8);
  font-size: var(--font-size-sm);
  line-height: var(--line-height-relaxed);
}

.brief-form__fields {
  display: grid;
  gap: var(--spacing-6);
  margin-bottom: var(--spacing-8);
}

@media (min-width: 480px) {
  .brief-form__fields {
    grid-template-columns: repeat(2, 1fr);
  }
}

.form-group {
  display: flex;
  flex-direction: column;
}

.form-group:last-child {
  grid-column: 1 / -1;
}

.form-label {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text);
  margin-bottom: var(--spacing-2);
}

.form-input,
.form-select,
.form-textarea {
  padding: var(--spacing-3) var(--spacing-4);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-md);
  font-size: var(--font-size-base);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  background-color: var(--color-white);
  color: var(--color-text);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
}

.form-textarea {
  resize: vertical;
  min-height: 100px;
}

/* Стили для опций в комбо-боксах брифа */
.form-select {
  color: var(--color-text);
  background-color: var(--color-background-secondary);
}

.form-select option {
  color: var(--color-text);
  padding: var(--spacing-2) var(--spacing-4);
}

/* Общий стиль для всех браузеров */
select.form-select option {
  color: var(--color-text);
}

.brief-form__note {
  text-align: center;
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.brief-form__download-link {
  color: var(--color-primary);
  font-weight: var(--font-weight-medium);
}

/* Footer */
.footer {
  background-color: var(--color-secondary);
  color: var(--color-white);
  padding: var(--spacing-12) 0 var(--spacing-8);
}

.footer__container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-4);
}

@media (min-width: 640px) {
  .footer__container {
    padding: 0 var(--spacing-6);
  }
}

@media (min-width: 1024px) {
  .footer__container {
    padding: 0 var(--spacing-8);
  }
}

.footer__content {
  display: grid;
  gap: var(--spacing-8);
  margin-bottom: var(--spacing-8);
}

@media (min-width: 768px) {
  .footer__content {
    grid-template-columns: 2fr 1fr 1fr 1fr;
  }
}

.footer__section {
  display: flex;
  flex-direction: column;
}

.footer__logo {
  display: flex;
  align-items: center;
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-white);
  margin-bottom: var(--spacing-4);
}

.footer__logo-image {
  max-width: var(--spacing-12);
  height: auto;
  margin-right: var(--spacing-2);
}

.footer__logo-image:hover {
  transform: scale(1.05);
}

.footer__description {
  color: rgba(255, 255, 255, 0.7);
  font-size: var(--font-size-sm);
  line-height: var(--line-height-relaxed);
}

.footer__title {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--spacing-4);
  color: var(--color-white);
}

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

.footer__links li {
  margin-bottom: var(--spacing-3);
}

.footer__link {
  color: rgba(255, 255, 255, 0.7);
  font-size: var(--font-size-sm);
  transition: color var(--transition-fast);
}

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

.footer__contacts {
  display: flex;
  flex-direction: column;
}

.footer__contact-link {
  color: rgba(255, 255, 255, 0.7);
  font-size: var(--font-size-sm);
  transition: color var(--transition-fast);
}

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

.footer__contact-text {
  color: rgba(255, 255, 255, 0.7);
  font-size: var(--font-size-sm);
  margin-bottom: var(--spacing-2);
  margin: 0 0 var(--spacing-2) 0;
}

.footer__contacts-list {
  list-style: none;
  padding: 0;
  margin: var(--spacing-2) 0 0 0;
}

.footer__contacts-list li {
  margin-bottom: var(--spacing-2);
}

.footer__bottom {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-4);
  padding-top: var(--spacing-8);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

@media (min-width: 768px) {
  .footer__bottom {
    flex-direction: row;
    justify-content: space-between;
  }
}

.footer__copyright {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.5);
}

.footer__legal {
  display: flex;
  gap: var(--spacing-6);
}

.footer__legal-link {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.5);
  transition: color var(--transition-fast);
}

.footer__legal-link:hover {
  color: var(--color-white);
}

/* Responsive Design */
@media (max-width: 479px) {
  :root {
    --font-size-6xl: 2.5rem;
    --font-size-5xl: 2rem;
    --font-size-4xl: 1.75rem;
    --font-size-3xl: 1.5rem;
  }

  .hero {
    padding: calc(var(--header-height) + var(--spacing-12)) 0 var(--spacing-16);
  }

  .section-title {
    font-size: var(--font-size-3xl);
  }

  .hero__title {
    font-size: var(--font-size-4xl);
  }

  .hero__subtitle {
    font-size: var(--font-size-lg);
  }
}

@media (min-width: 481px) and (max-width: 767px) {
  .hero__contact-row {
    flex-direction: column;
    gap: var(--spacing-2);
  }

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

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

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

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

@media (min-width: 768px) and (max-width: 900px) {
  .services__grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

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

/* Print Styles */
@media print {
  .header,
  .nav,
  .hero__actions,
  .demo,
  .contacts,
  .footer {
    display: none !important;
  }

  body {
    font-size: 12pt;
    line-height: 1.4;
  }

  h1, h2, h3, h4, h5, h6 {
    page-break-after: avoid;
  }

  .section-title,
  .section-subtitle {
    color: var(--color-black) !important;
  }
}

/* Dark mode support (optional) */
@media (prefers-color-scheme: dark) {
  :root {
    --color-background: #111827;
    --color-background-secondary: #1f2937;
    --color-text: #f9fafb;
    --color-text-secondary: #d1d5db;
    --color-white: #1f2937;
    --color-border: #374151;
    --color-border-light: #4b5563;
  }

  .header {
    background-color: rgba(31, 41, 55, 0.95); /* Dark background for header in dark mode */
  }
}

/* Case Study Pages Styles */
.case-hero {
  padding: calc(var(--header-height) + var(--spacing-16)) 0 var(--spacing-20);
  background: linear-gradient(135deg, var(--color-background) 0%, var(--color-background-secondary) 100%);
}

.case-hero__container {
  display: grid;
  gap: var(--spacing-12);
  align-items: center;
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-4);
}

@media (min-width: 640px) {
  .case-hero__container {
    padding: 0 var(--spacing-6);
  }
}

@media (min-width: 1024px) {
  .case-hero__container {
    padding: 0 var(--spacing-8);
  }
}

@media (min-width: 768px) {
  .case-hero__container {
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-16);
  }
}

.case-hero__content {
  order: 2;
}

@media (min-width: 768px) {
  .case-hero__content {
    order: 1;
  }
}

.case-hero__title {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  margin-bottom: var(--spacing-4);
  color: var(--color-text);
}

.case-hero__subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-8);
  max-width: 600px;
  line-height: var(--line-height-relaxed);
}

.case-hero__metrics {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-4);
  margin-bottom: var(--spacing-8);
}

.metric-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: var(--spacing-6);
  background-color: var(--color-white);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border-light);
  min-width: 120px;
}

.metric-item__value {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  line-height: var(--line-height-tight);
}

.metric-item__label {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  text-align: center;
  margin-top: var(--spacing-1);
}

.case-hero__image {
  order: 1;
  display: flex;
  justify-content: center;
}

@media (min-width: 768px) {
  .case-hero__image {
    order: 2;
    justify-content: flex-end;
  }
}

.case-hero__img {
  width: 100%;
  max-width: 400px;
  height: auto;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
}

.breadcrumb {
  margin-bottom: var(--spacing-8);
  padding: 0 var(--spacing-4);
}

@media (min-width: 640px) {
  .breadcrumb {
    padding: 0 var(--spacing-6);
  }
}

@media (min-width: 1024px) {
  .breadcrumb {
    padding: 0 var(--spacing-8);
  }
}

.breadcrumb__link {
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

.breadcrumb__separator {
  color: var(--color-text-light);
  margin: 0 var(--spacing-2);
}

.breadcrumb__current {
  color: var(--color-text);
  font-weight: var(--font-weight-medium);
}

.case-section {
  padding: var(--spacing-20) 0;
}

.case-section--gray {
  background-color: var(--color-background-secondary);
}

.case-section > * {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-4);
}

@media (min-width: 640px) {
  .case-section > * {
    padding: 0 var(--spacing-6);
  }
}

@media (min-width: 1024px) {
  .case-section > * {
    padding: 0 var(--spacing-8);
  }
}

.case-challenge {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 var(--spacing-4);
}

@media (min-width: 640px) {
  .case-challenge {
    padding: 0 var(--spacing-6);
  }
}

@media (min-width: 1024px) {
  .case-challenge {
    padding: 0 var(--spacing-8);
  }
}

.case-challenge__content {
  text-align: center;
}

.case-challenge__text {
  font-size: var(--font-size-lg);
  line-height: var(--line-height-relaxed);
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-8);
}

.case-challenge__list {
  list-style: none;
  padding: 0;
  display: grid;
  gap: var(--spacing-4);
  text-align: left;
  max-width: 600px;
  margin: 0 auto;
}

.case-challenge__list li {
  position: relative;
  padding-left: var(--spacing-8);
  color: var(--color-text-secondary);
}

.case-challenge__list li::before {
  content: "❌";
  position: absolute;
  left: 0;
  color: #ef4444;
  font-weight: var(--font-weight-bold);
}

.case-solution {
  max-width: 1000px;
  margin: 0 auto;
  display: grid;
  gap: var(--spacing-12);
  padding: 0 var(--spacing-4);
}

@media (min-width: 640px) {
  .case-solution {
    padding: 0 var(--spacing-6);
  }
}

@media (min-width: 1024px) {
  .case-solution {
    padding: 0 var(--spacing-8);
  }
}

@media (min-width: 768px) {
  .case-solution {
    grid-template-columns: 6fr 4fr;
  }
}

.case-solution__content {
  order: 2;
}

@media (min-width: 768px) {
  .case-solution__content {
    order: 1;
  }
}

.case-solution__text {
  font-size: var(--font-size-lg);
  line-height: var(--line-height-relaxed);
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-6);
}

.case-solution__list {
  list-style: none;
  padding: 0;
}

.case-solution__list li {
  position: relative;
  padding-left: var(--spacing-8);
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-3);
  line-height: var(--line-height-relaxed);
}

.case-solution__list li::before {
  content: "✅";
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-weight: var(--font-weight-bold);
}

.case-solution__tech {
  order: 1;
  background-color: var(--color-white);
  padding: var(--spacing-8);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border-light);
}

@media (min-width: 768px) {
  .case-solution__tech {
    order: 2;
  }
}

.case-solution__tech-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--spacing-6);
  color: var(--color-text);
  text-align: center;
}

.tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-3);
  justify-content: center;
}

.tech-tag {
  background-color: var(--color-primary);
  color: var(--color-white);
  padding: var(--spacing-2) var(--spacing-4);
  border-radius: var(--border-radius-full);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
}

.case-process {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 var(--spacing-4);
}

@media (min-width: 640px) {
  .case-process {
    padding: 0 var(--spacing-6);
  }
}

@media (min-width: 1024px) {
  .case-process {
    padding: 0 var(--spacing-8);
  }
}

.process-timeline {
  position: relative;
}

.process-timeline::before {
  content: "";
  position: absolute;
  left: 2rem;
  top: 4rem;
  bottom: 4rem;
  width: 2px;
  background-color: var(--color-border);
}

@media (min-width: 768px) {
  .process-timeline::before {
    left: 3rem;
  }
}

.timeline-item {
  position: relative;
  margin-bottom: var(--spacing-12);
  display: flex;
  gap: var(--spacing-6);
}

.timeline-item:last-child {
  margin-bottom: 0;
}

.timeline-item__marker {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 4rem;
  height: 4rem;
  background-color: var(--color-primary);
  color: var(--color-white);
  border-radius: var(--border-radius-full);
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  flex-shrink: 0;
  z-index: 1;
}

.timeline-item__content {
  padding-top: var(--spacing-2);
  flex: 1;
}

.timeline-item__title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--spacing-2);
  color: var(--color-text);
}

.timeline-item__text {
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
}

.case-results {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 var(--spacing-4);
}

@media (min-width: 640px) {
  .case-results {
    padding: 0 var(--spacing-6);
  }
}

@media (min-width: 1024px) {
  .case-results {
    padding: 0 var(--spacing-8);
  }
}

.results-grid {
  display: grid;
  gap: var(--spacing-8);
}

@media (min-width: 768px) {
  .results-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.result-item {
  background-color: var(--color-white);
  padding: var(--spacing-8);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border-light);
  text-align: center;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.result-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.result-item__icon {
  font-size: 2rem;
  margin-bottom: var(--spacing-4);
}

.result-item__title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--spacing-3);
  color: var(--color-text);
}

.result-item__text {
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
  font-size: var(--font-size-sm);
}

.case-demo {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
  padding: 0 var(--spacing-4);
}

@media (min-width: 640px) {
  .case-demo {
    padding: 0 var(--spacing-6);
  }
}

@media (min-width: 1024px) {
  .case-demo {
    padding: 0 var(--spacing-8);
  }
}

.case-demo__video {
  width: 100%;
  border-radius: var(--border-radius-lg);
  margin-bottom: var(--spacing-4);
}

.case-demo__caption {
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  font-style: italic;
}

.case-cta {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: var(--color-white);
  padding: var(--spacing-20) 0;
  text-align: center;
}

.case-cta__content {
  max-width: 600px;
  margin: 0 auto;
  padding: 0 var(--spacing-4);
}

@media (min-width: 640px) {
  .case-cta__content {
    padding: 0 var(--spacing-6);
  }
}

@media (min-width: 1024px) {
  .case-cta__content {
    padding: 0 var(--spacing-8);
  }
}

.case-cta__title {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--spacing-4);
  color: var(--color-white);
}

.case-cta__text {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-8);
  opacity: 0.9;
}

.case-cta__actions {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-4);
  align-items: center;
}

@media (min-width: 480px) {
  .case-cta__actions {
    flex-direction: row;
    justify-content: center;
  }
}

/* Mobile Navigation Styles for Case Pages */
.nav__list--active {
  display: flex;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background-color: var(--color-white);
  flex-direction: column;
  padding: var(--spacing-4) 0;
  box-shadow: var(--shadow-lg);
  border-top: 1px solid var(--color-border);
}

@media (min-width: 768px) {
  .nav__list--active {
    position: static;
    box-shadow: none;
    border: none;
    padding: 0;
    flex-direction: row;
    background-color: transparent;
  }
}

.nav__list--active .nav__link {
  padding: var(--spacing-3) var(--spacing-6);
  border-radius: 0;
}

@media (min-width: 768px) {
  .nav__list--active .nav__link {
    padding: var(--spacing-2);
    border-radius: var(--border-radius-sm);
  }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* 404 Error Page Styles */
.error-404 {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 60vh;
  text-align: center;
  padding: var(--spacing-8) 0;
}

.error-404__content {
  max-width: 600px;
  margin-bottom: var(--spacing-8);
}

.error-404__title {
  font-size: var(--font-size-6xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  margin-bottom: var(--spacing-4);
  line-height: 1;
}

.error-404__subtitle {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
  margin-bottom: var(--spacing-6);
}

.error-404__description {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--spacing-8);
}

.error-404__actions {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-4);
  align-items: center;
}

.error-404__actions .btn {
  min-width: 200px;
}

.error-404__visual {
  margin-top: var(--spacing-8);
}

.error-404__icon {
  width: 120px;
  height: 120px;
  color: var(--color-primary);
  opacity: 0.3;
  margin: 0 auto;
}

.error-404__icon svg {
  width: 100%;
  height: 100%;
}

/* Responsive 404 styles */
@media (min-width: 768px) {
  .error-404 {
    flex-direction: row;
    text-align: left;
    gap: var(--spacing-12);
  }

  .error-404__content {
    flex: 1;
    margin-bottom: 0;
  }

  .error-404__visual {
    flex: 1;
    margin-top: 0;
  }

  .error-404__icon {
    width: 200px;
    height: 200px;
  }

  .error-404__actions {
    flex-direction: row;
    justify-content: flex-start;
  }

  .error-404__actions .btn {
    min-width: 180px;
  }
}

@media (min-width: 1024px) {
  .error-404__title {
    font-size: 8rem;
  }

  .error-404__subtitle {
    font-size: var(--font-size-4xl);
  }

  .error-404__icon {
    width: 250px;
    height: 250px;
  }
}

/* Modal: site-wide message dialog */
.modal {
  display: none;
  position: fixed;
  z-index: 1100;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  opacity: 0;
  transition: opacity 0.2s ease;
}

.modal--visible {
  display: block;
  opacity: 1;
}

.modal__dialog {
  position: absolute;
  left: 50%;
  top: 10%;
  transform: translateX(-50%);
  background: var(--color-white);
  color: var(--color-text);
  border-radius: 12px;
  box-shadow: var(--shadow-lg);
  max-width: 560px;
  width: calc(100% - 32px);
  padding: 20px 48px 20px 20px;
  border: 1px solid var(--color-border-light);
}

.modal__close {
  position: absolute;
  right: 12px;
  top: 8px;
  width: 36px;
  height: 36px;
  border: none;
  background: transparent;
  color: var(--color-text-secondary);
  font-size: 24px;
  line-height: 1;
  cursor: pointer;
}

.modal__close:hover,
.modal__close:focus {
  color: var(--color-text);
  outline: none;
}

.modal__content {
  font-size: 16px;
  line-height: 1.5;
}

/* Level modifiers */
.modal--success .modal__dialog { border-left: 4px solid var(--color-primary); }
.modal--error .modal__dialog { border-left: 4px solid #ef4444; }
.modal--warning .modal__dialog { border-left: 4px solid var(--color-accent); }
.modal--info .modal__dialog { border-left: 4px solid #3b82f6; }