@charset "UTF-8";
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  min-height: 100vh;
  line-height: 1.6;
}

img, picture, video, canvas, svg {
  display: block;
  max-width: 100%;
  height: auto;
}

input, button, textarea, select {
  font: inherit;
}

p, h1, h2, h3, h4, h5, h6 {
  overflow-wrap: break-word;
}

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

ul, ol {
  list-style: none;
}

button {
  background: none;
  border: none;
  cursor: pointer;
}

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

:root {
  --color-primary: #FF5722;
  --color-primary-dark: #E64A19;
  --color-text: #1A1A1A;
  --color-text-secondary: #666666;
  --color-background: #FFFFFF;
  --color-background-alt: #F5F5F5;
  --color-highlight: #FF5722;
  --color-border: #E0E0E0;
  --font-family: 'Manrope', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-family-basis: "Basis Grotesque Arabic Pro", "Manrope", sans-serif;
  --font-weight-light: 300;
  --font-weight-regular: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --font-weight-extrabold: 800;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  --font-size-4xl: 3rem;
  --font-size-5xl: 4rem;
  --font-size-6xl: 9rem;
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;
  --spacing-3xl: 6rem;
  --spacing-4xl: 8rem;
  --max-width: 1200px;
  --container-padding: var(--spacing-md);
  --transition-fast: 150ms ease-in-out;
  --transition-base: 250ms ease-in-out;
  --transition-slow: 350ms ease-in-out;
  --breakpoint-sm: 640px;
  --breakpoint-md: 768px;
  --breakpoint-lg: 1024px;
  --breakpoint-xl: 1280px;
}

@font-face {
  font-family: "Basis Grotesque Arabic Pro";
  src: url("../assets/fonts/BasisGrotesqueArabicPro-Bold.ttf") format("truetype");
  font-weight: bold;
  font-style: normal;
}
@font-face {
  font-family: "Basis Grotesque Arabic Pro";
  src: url("../assets/fonts/BasisGrotesqueArabicPro-Medium.ttf") format("truetype");
  font-weight: normal;
  font-style: normal;
}
body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-regular);
  color: var(--color-text);
  line-height: 1.6;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: var(--font-weight-bold);
  line-height: 1.2;
  color: var(--color-text);
}

h1 {
  font-size: var(--font-size-5xl);
  font-weight: var(--font-weight-extrabold);
}
@media (max-width: 768px) {
  h1 {
    font-size: var(--font-size-4xl);
  }
}
@media (max-width: 480px) {
  h1 {
    font-size: var(--font-size-3xl);
  }
}

h2 {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-extrabold);
}
@media (max-width: 768px) {
  h2 {
    font-size: var(--font-size-3xl);
  }
}
@media (max-width: 480px) {
  h2 {
    font-size: var(--font-size-2xl);
  }
}

h3 {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
}
@media (max-width: 768px) {
  h3 {
    font-size: var(--font-size-xl);
  }
}

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

p {
  margin-bottom: var(--spacing-md);
  line-height: 1.7;
}
p:last-child {
  margin-bottom: 0;
}

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

strong {
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
}

small {
  font-size: var(--font-size-sm);
}

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

.text-uppercase {
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

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

body {
  background-color: var(--color-background);
  overflow-x: hidden;
}

main {
  position: relative;
}
main section {
  padding: var(--spacing-3xl) var(--spacing-md);
}
@media (max-width: 768px) {
  main section {
    padding: var(--spacing-2xl) var(--spacing-md);
  }
}
@media (max-width: 480px) {
  main section {
    padding: var(--spacing-xl) var(--spacing-sm);
  }
}

.section-title {
  font-size: var(--font-size-6xl);
  font-weight: var(--font-weight-extrabold);
  text-transform: uppercase;
  letter-spacing: -0.02em;
  margin-bottom: var(--spacing-2xl);
  color: var(--color-primary);
}
@media (max-width: 768px) {
  .section-title {
    font-size: var(--font-size-5xl);
    margin-bottom: var(--spacing-xl);
  }
}
@media (max-width: 480px) {
  .section-title {
    font-size: var(--font-size-4xl);
  }
}

.subsection-title {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--spacing-lg);
  color: var(--color-text);
  text-align: center;
}
@media (max-width: 768px) {
  .subsection-title {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--spacing-xl);
  }
}
@media (max-width: 480px) {
  .subsection-title {
    font-size: var(--font-size-3xl);
  }
}

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

.highlight {
  color: var(--color-primary);
}

.icon-placeholder {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: var(--color-background-alt);
  border-radius: 8px;
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.logo-icon {
  color: var(--color-text);
  transition: color var(--transition-base);
}
.logo-icon:hover {
  color: var(--color-primary);
}

.custom-cursor {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: #FF5722;
  position: fixed;
  pointer-events: none;
  z-index: 9999;
  mix-blend-mode: multiply;
  transition: transform 0.15s ease, opacity 0.15s ease;
  transform: translate(-50%, -50%);
  opacity: 0;
}
.custom-cursor.active {
  opacity: 1;
}
.custom-cursor.hover {
  transform: translate(-50%, -50%) scale(1.5);
}

body {
  cursor: none;
}

a, button, .skill-item, .help-card {
  cursor: none;
}

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--color-background);
  border-bottom: 1px solid var(--color-border);
  padding: var(--spacing-md) 0;
  transition: all var(--transition-base);
}
@media (max-width: 768px) {
  .header {
    padding: var(--spacing-sm) 0;
  }
}
.header .nav {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
@media (max-width: 480px) {
  .header .nav {
    padding: 0 var(--spacing-sm);
  }
}
.header .logo {
  display: flex;
  align-items: center;
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-xl);
  transition: transform var(--transition-fast);
}
.header .logo:hover {
  transform: scale(1.05);
}

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: var(--spacing-4xl) var(--spacing-md);
  margin-top: 80px;
}
@media (max-width: 768px) {
  .hero {
    padding: var(--spacing-3xl) var(--spacing-md);
    margin-top: 70px;
  }
}
@media (max-width: 480px) {
  .hero {
    padding: var(--spacing-2xl) var(--spacing-sm);
    margin-top: 60px;
  }
}
.hero .hero-content {
  max-width: var(--max-width);
  margin: 0 auto;
  width: 100%;
}
.hero .hero-tagline {
  margin-bottom: var(--spacing-3xl);
  position: relative;
}
@media (max-width: 768px) {
  .hero .hero-tagline {
    margin-bottom: var(--spacing-2xl);
  }
}
.hero .hero-tagline .typewriter-line {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-sm);
  position: relative;
  min-height: 70px;
}
@media (max-width: 1024px) {
  .hero .hero-tagline .typewriter-line {
    min-height: 60px;
  }
}
@media (max-width: 768px) {
  .hero .hero-tagline .typewriter-line {
    margin-bottom: var(--spacing-xs);
    min-height: auto;
  }
}
.hero .hero-tagline .typewriter-text {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-medium);
  line-height: 1.2;
  color: var(--color-primary);
  position: relative;
  display: inline;
  opacity: 0;
  text-align: center;
}
.hero .hero-tagline .typewriter-text.typing {
  opacity: 1;
  margin-bottom: 0%;
}
@media (max-width: 1024px) {
  .hero .hero-tagline .typewriter-text {
    font-size: var(--font-size-3xl);
  }
}
@media (max-width: 768px) {
  .hero .hero-tagline .typewriter-text {
    font-size: var(--font-size-2xl);
    line-height: 1.3;
  }
}
@media (max-width: 480px) {
  .hero .hero-tagline .typewriter-text {
    font-size: var(--font-size-xl);
  }
}
.hero .hero-tagline .typewriter-text .word {
  display: inline-block;
  opacity: 0;
  transform: translateY(10px);
  margin-right: 0.3em;
}
.hero .hero-tagline .typewriter-text .word.show {
  animation: fadeIn 0.4s ease forwards;
}
.hero .hero-tagline .typewriter-text .word.highlight {
  font-weight: var(--font-weight-bold);
}
.hero .hero-title {
  margin-bottom: var(--spacing-2xl);
  text-align: left;
}
.hero .hero-title .section-title {
  text-align: left;
  margin-bottom: var(--spacing-sm);
  display: block;
}
.hero .hero-title .hero-subtitle {
  display: block;
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-medium);
  color: var(--color-text);
  text-transform: uppercase;
}
@media (max-width: 768px) {
  .hero .hero-title .hero-subtitle {
    font-size: var(--font-size-xl);
  }
}
@media (max-width: 480px) {
  .hero .hero-title .hero-subtitle {
    font-size: var(--font-size-lg);
  }
}
.hero .hero-description {
  max-width: 800px;
  text-align: left;
}
.hero .hero-description p {
  font-size: var(--font-size-lg);
  line-height: 1.8;
  color: var(--color-text);
  margin-bottom: var(--spacing-lg);
}
@media (max-width: 768px) {
  .hero .hero-description p {
    font-size: var(--font-size-base);
  }
}
.hero .hero-description p strong {
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
}

.about-section {
  background: var(--color-background);
  padding: var(--spacing-4xl) var(--spacing-md);
}
@media (max-width: 768px) {
  .about-section {
    padding: var(--spacing-3xl) var(--spacing-md);
  }
}
@media (max-width: 480px) {
  .about-section {
    padding: var(--spacing-2xl) var(--spacing-sm);
  }
}
.about-section .about-container {
  max-width: var(--max-width);
  margin: 0 auto;
}
.about-section .about-header {
  margin-bottom: var(--spacing-3xl);
}
@media (max-width: 768px) {
  .about-section .about-header {
    margin-bottom: var(--spacing-2xl);
  }
}
.about-section .about-header .about-subtitle {
  font-family: var(--font-family-basis);
  font-size: var(--font-size-3xl);
  color: var(--color-primary);
  font-weight: var(--font-weight-medium);
}
@media (max-width: 768px) {
  .about-section .about-header .about-subtitle {
    font-size: var(--font-size-lg);
  }
}
@media (max-width: 480px) {
  .about-section .about-header .about-subtitle {
    font-size: var(--font-size-base);
  }
}
.about-section .about-description {
  max-width: 650px;
}
.about-section .about-description p {
  font-size: var(--font-size-lg);
  line-height: 1.8;
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-lg);
}
@media (max-width: 768px) {
  .about-section .about-description p {
    font-size: var(--font-size-base);
  }
}
.about-section .about-description p strong {
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
}
.about-section .about-description p:last-child {
  margin-bottom: 0;
}

.help-section {
  position: relative;
  background: var(--color-background);
  padding: var(--spacing-4xl) var(--spacing-md);
}
@media (max-width: 768px) {
  .help-section {
    padding: var(--spacing-3xl) var(--spacing-md);
  }
}
@media (max-width: 480px) {
  .help-section {
    padding: var(--spacing-2xl) var(--spacing-sm);
  }
}
.help-section .help-title {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-extrabold);
  text-transform: uppercase;
  letter-spacing: -0.02em;
  margin-bottom: var(--spacing-3xl);
  color: var(--color-primary);
  text-align: center;
}
@media (max-width: 768px) {
  .help-section .help-title {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--spacing-2xl);
  }
}
@media (max-width: 480px) {
  .help-section .help-title {
    font-size: var(--font-size-2xl);
  }
}
.help-section .help-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-xl);
  max-width: var(--max-width);
  margin: 0 auto;
}
@media (max-width: 768px) {
  .help-section .help-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }
}

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

.education-section {
  background: var(--color-primary);
  color: var(--color-background);
}
.education-section .section-title {
  color: var(--color-background);
}
.education-section .education-content {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--spacing-3xl);
}
@media (max-width: 1024px) {
  .education-section .education-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-2xl);
  }
}
.education-section .education-main {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-2xl);
}
.education-section .education-complementary .subsection-title {
  color: var(--color-background);
  margin-bottom: var(--spacing-xl);
}
.education-section .education-complementary {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.skills-section {
  background: var(--color-background);
}
.skills-section .skills-category {
  max-width: var(--max-width);
  margin: 0 auto;
}
.skills-section .skills-category:not(:last-child) {
  margin-bottom: var(--spacing-4xl);
}
@media (max-width: 768px) {
  .skills-section .skills-category:not(:last-child) {
    margin-bottom: var(--spacing-3xl);
  }
}
.skills-section .skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
}
@media (max-width: 640px) {
  .skills-section .skills-grid {
    grid-template-columns: 1fr;
  }
}
.skills-section .languages-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-xl);
  max-width: 900px;
  margin: 0 auto;
}
@media (max-width: 768px) {
  .skills-section .languages-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }
}

.footer {
  background: var(--color-primary);
  color: var(--color-background);
  padding: var(--spacing-3xl) var(--spacing-md) var(--spacing-2xl);
}
@media (max-width: 768px) {
  .footer {
    padding: var(--spacing-2xl) var(--spacing-md) var(--spacing-xl);
  }
}
@media (max-width: 480px) {
  .footer {
    padding: var(--spacing-xl) var(--spacing-sm);
  }
}
.footer .contact-content {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}
.footer .contact-title {
  font-size: var(--font-size-6xl);
  font-weight: var(--font-weight-extrabold);
  text-transform: uppercase;
  letter-spacing: -0.02em;
  color: var(--color-background);
  margin-bottom: var(--spacing-3xl);
}
@media (max-width: 1024px) {
  .footer .contact-title {
    font-size: var(--font-size-5xl);
    margin-bottom: var(--spacing-2xl);
  }
}
@media (max-width: 768px) {
  .footer .contact-title {
    font-size: var(--font-size-4xl);
  }
}
@media (max-width: 480px) {
  .footer .contact-title {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--spacing-xl);
  }
}
.footer .contact-buttons {
  display: flex;
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-3xl);
}
@media (max-width: 1024px) {
  .footer .contact-buttons {
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
  }
}
@media (max-width: 768px) {
  .footer .contact-buttons {
    flex-direction: column;
    width: 100%;
    max-width: 600px;
    gap: var(--spacing-md);
  }
}
.footer .contact-button {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-lg);
  padding: var(--spacing-2xl) var(--spacing-xl);
  background: transparent;
  border: 2px solid var(--color-background);
  border-radius: 16px;
  color: var(--color-background);
  transition: all var(--transition-base);
  min-width: 400px;
}
@media (max-width: 1024px) {
  .footer .contact-button {
    min-width: 350px;
    padding: var(--spacing-xl) var(--spacing-lg);
  }
}
@media (max-width: 768px) {
  .footer .contact-button {
    min-width: 100%;
    padding: var(--spacing-lg) var(--spacing-md);
    gap: var(--spacing-md);
  }
}
@media (max-width: 480px) {
  .footer .contact-button {
    padding: var(--spacing-md);
  }
}
.footer .contact-button:hover {
  background: var(--color-background);
  color: var(--color-primary);
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}
@media (max-width: 768px) {
  .footer .contact-button:hover {
    transform: translateY(-2px);
  }
}
.footer .contact-button .button-icon {
  width: 64px;
  height: 64px;
  flex-shrink: 0;
}
@media (max-width: 1024px) {
  .footer .contact-button .button-icon {
    width: 56px;
    height: 56px;
  }
}
@media (max-width: 768px) {
  .footer .contact-button .button-icon {
    width: 48px;
    height: 48px;
  }
}
.footer .contact-button .button-text {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  letter-spacing: 0.02em;
}
@media (max-width: 1024px) {
  .footer .contact-button .button-text {
    font-size: var(--font-size-lg);
  }
}
@media (max-width: 768px) {
  .footer .contact-button .button-text {
    font-size: var(--font-size-base);
  }
}
.footer .copyright {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  color: var(--color-background);
  opacity: 0.9;
  margin: 0;
}
@media (max-width: 768px) {
  .footer .copyright {
    font-size: var(--font-size-sm);
  }
}

.portfolio-header {
  padding: var(--spacing-4xl) var(--spacing-md) var(--spacing-xl);
  max-width: var(--max-width);
  margin: 0 auto;
}
@media (max-width: 768px) {
  .portfolio-header {
    padding: var(--spacing-3xl) var(--spacing-md) var(--spacing-lg);
  }
}
@media (max-width: 480px) {
  .portfolio-header {
    padding: var(--spacing-2xl) var(--spacing-sm) var(--spacing-md);
  }
}
.portfolio-header .portfolio-intro {
  max-width: 700px;
  font-size: var(--font-size-lg);
  line-height: 1.8;
  color: var(--color-text-secondary);
  margin-bottom: 0;
}
@media (max-width: 768px) {
  .portfolio-header .portfolio-intro {
    font-size: var(--font-size-base);
  }
}

.portfolio-grid-section {
  padding: 0 var(--spacing-md) var(--spacing-3xl);
}
@media (max-width: 480px) {
  .portfolio-grid-section {
    padding: 0 var(--spacing-sm) var(--spacing-2xl);
  }
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-lg);
  max-width: var(--max-width);
  margin: 0 auto;
}
@media (max-width: 768px) {
  .portfolio-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }
}

.portfolio-card {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  padding: var(--spacing-xl);
  background: var(--color-background);
  border: 2px solid var(--color-border);
  border-radius: 12px;
  transition: all var(--transition-base);
  text-decoration: none;
  color: inherit;
}
@media (max-width: 480px) {
  .portfolio-card {
    padding: var(--spacing-lg);
  }
}
.portfolio-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}
.portfolio-card:hover .portfolio-card-title {
  color: var(--color-primary);
}
.portfolio-card .portfolio-card-tag {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-primary);
}
.portfolio-card .portfolio-card-title {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
  transition: color var(--transition-base);
  margin-bottom: 0;
  line-height: 1.3;
}
@media (max-width: 480px) {
  .portfolio-card .portfolio-card-title {
    font-size: var(--font-size-xl);
  }
}
.portfolio-card .portfolio-card-description {
  font-size: var(--font-size-sm);
  line-height: 1.6;
  color: var(--color-text-secondary);
  margin-bottom: 0;
}
.portfolio-card .portfolio-card-meta {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
  margin-top: auto;
}
.portfolio-card .portfolio-card-meta .meta-separator {
  color: var(--color-border);
}
.portfolio-card .portfolio-card-kpi {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
}
.portfolio-card .portfolio-card-kpi .kpi-tag {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  color: var(--color-primary);
  background: rgba(255, 87, 34, 0.08);
  padding: 0.25rem 0.6rem;
  border-radius: 4px;
}

.project-hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-2xl);
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--spacing-4xl) var(--spacing-md) var(--spacing-2xl);
  align-items: center;
}
@media (max-width: 1024px) {
  .project-hero {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
    padding-top: var(--spacing-3xl);
  }
}
@media (max-width: 480px) {
  .project-hero {
    padding: var(--spacing-2xl) var(--spacing-sm) var(--spacing-xl);
  }
}

.project-hero-sidebar {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
  padding: var(--spacing-xl) var(--spacing-xl);
  border-left: 2px solid var(--color-border);
}
@media (max-width: 1024px) {
  .project-hero-sidebar {
    border-left: none;
    border-top: 2px solid var(--color-border);
    padding: var(--spacing-xl) 0 0;
    flex-direction: row;
    flex-wrap: wrap;
    gap: var(--spacing-lg) var(--spacing-2xl);
  }
}
@media (max-width: 480px) {
  .project-hero-sidebar {
    flex-direction: column;
    gap: var(--spacing-md);
  }
}
.project-hero-sidebar .sidebar-item {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}
.project-hero-sidebar .sidebar-item .sidebar-label {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-secondary);
}
.project-hero-sidebar .sidebar-item .sidebar-value {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
  line-height: 1.4;
}

.project-hero-content .project-breadcrumb {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-primary);
  text-decoration: none;
  margin-bottom: var(--spacing-lg);
  transition: opacity var(--transition-base);
}
.project-hero-content .project-breadcrumb:hover {
  opacity: 0.7;
}
.project-hero-content .project-breadcrumb svg {
  flex-shrink: 0;
}
.project-hero-content .project-hero-eyebrow {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-primary);
  margin-bottom: var(--spacing-md);
}
.project-hero-content .project-hero-title {
  font-size: var(--font-size-6xl);
  font-weight: var(--font-weight-extrabold);
  text-transform: uppercase;
  letter-spacing: -0.02em;
  color: var(--color-text);
  line-height: 0.9;
  margin-bottom: var(--spacing-sm);
}
@media (max-width: 768px) {
  .project-hero-content .project-hero-title {
    font-size: var(--font-size-5xl);
  }
}
@media (max-width: 480px) {
  .project-hero-content .project-hero-title {
    font-size: var(--font-size-4xl);
  }
}
.project-hero-content .project-hero-subtitle {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-md);
}
.project-hero-content .project-hero-description {
  font-size: var(--font-size-base);
  line-height: 1.7;
  color: var(--color-text-secondary);
  max-width: 500px;
  margin-bottom: var(--spacing-xl);
}
.project-hero-content .project-hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-lg);
}
@media (max-width: 480px) {
  .project-hero-content .project-hero-meta {
    gap: var(--spacing-md);
  }
}
.project-hero-content .project-hero-meta .meta-block {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}
.project-hero-content .project-hero-meta .meta-block .meta-label {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-secondary);
}
.project-hero-content .project-hero-meta .meta-block .meta-value {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
}

.project-hero-kpis {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px;
  background: var(--color-border);
  border-radius: 12px;
  overflow: hidden;
}
@media (max-width: 480px) {
  .project-hero-kpis {
    grid-template-columns: 1fr;
  }
}
.project-hero-kpis .hero-kpi-item {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  padding: var(--spacing-xl);
  background: var(--color-background-alt);
}
@media (max-width: 768px) {
  .project-hero-kpis .hero-kpi-item {
    padding: var(--spacing-lg);
  }
}
.project-hero-kpis .hero-kpi-item .hero-kpi-value {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-extrabold);
  color: var(--color-primary);
  line-height: 1;
}
@media (max-width: 768px) {
  .project-hero-kpis .hero-kpi-item .hero-kpi-value {
    font-size: var(--font-size-3xl);
  }
}
.project-hero-kpis .hero-kpi-item .hero-kpi-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.4;
}
.project-hero-kpis .hero-kpi-item .hero-kpi-before {
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
  opacity: 0.7;
}

.project-nav {
  position: sticky;
  top: 73px;
  z-index: 100;
  background: var(--color-background);
  border-bottom: 1px solid var(--color-border);
  border-top: 1px solid var(--color-border);
}
.project-nav .project-nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  display: flex;
  gap: var(--spacing-lg);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
.project-nav .project-nav-inner::-webkit-scrollbar {
  display: none;
}
@media (max-width: 768px) {
  .project-nav .project-nav-inner {
    gap: var(--spacing-md);
  }
}
.project-nav .project-nav-inner a {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-secondary);
  text-decoration: none;
  padding: var(--spacing-md) 0;
  white-space: nowrap;
  border-bottom: 2px solid transparent;
  transition: all var(--transition-base);
}
.project-nav .project-nav-inner a:hover, .project-nav .project-nav-inner a.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

.project-section {
  padding: var(--spacing-3xl) var(--spacing-md);
}
@media (max-width: 768px) {
  .project-section {
    padding: var(--spacing-2xl) var(--spacing-md);
  }
}
@media (max-width: 480px) {
  .project-section {
    padding: var(--spacing-xl) var(--spacing-sm);
  }
}
.project-section--alt {
  background: var(--color-background-alt);
}

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

.project-section-label {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-primary);
  margin-bottom: var(--spacing-sm);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}
.project-section-label::after {
  content: "";
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, rgba(255, 87, 34, 0.3), transparent);
}

.project-section-title {
  font-size: var(--font-size-5xl);
  font-weight: var(--font-weight-extrabold);
  text-transform: uppercase;
  letter-spacing: -0.02em;
  color: var(--color-text);
  margin-bottom: var(--spacing-xl);
}
@media (max-width: 768px) {
  .project-section-title {
    font-size: var(--font-size-4xl);
  }
}
@media (max-width: 480px) {
  .project-section-title {
    font-size: var(--font-size-3xl);
  }
}

.project-subsection-title {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
  letter-spacing: 0.02em;
  color: var(--color-text);
  margin-top: var(--spacing-2xl);
  margin-bottom: var(--spacing-lg);
}
@media (max-width: 768px) {
  .project-subsection-title {
    font-size: var(--font-size-xl);
  }
}

.project-text-block {
  max-width: 650px;
  margin-bottom: var(--spacing-xl);
}
.project-text-block--wide {
  max-width: 850px;
}
.project-text-block p {
  font-size: var(--font-size-base);
  line-height: 1.8;
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-md);
}
.project-text-block p strong {
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
}
.project-text-block p:last-child {
  margin-bottom: 0;
}

.project-two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-2xl);
  margin-bottom: var(--spacing-xl);
}
@media (max-width: 768px) {
  .project-two-col {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }
}

.project-info-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-md);
}
@media (max-width: 480px) {
  .project-info-cards {
    grid-template-columns: 1fr;
  }
}
.project-info-cards .info-card {
  padding: var(--spacing-lg);
  background: var(--color-background-alt);
  border-radius: 8px;
  border: 1px solid var(--color-border);
}
.project-info-cards .info-card .info-card-label {
  display: block;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-primary);
  margin-bottom: 0.3rem;
}
.project-info-cards .info-card .info-card-value {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
}

.project-context-tech {
  padding: var(--spacing-xl);
  background: var(--color-background-alt);
  border-left: 3px solid var(--color-primary);
  border-radius: 0 8px 8px 0;
}
.project-context-tech h3 {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
  margin-bottom: var(--spacing-sm);
}
.project-context-tech p {
  font-size: var(--font-size-base);
  line-height: 1.7;
  color: var(--color-text-secondary);
  margin-bottom: 0;
}
.project-context-tech p strong {
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
}

.project-problems-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
}
@media (max-width: 1024px) {
  .project-problems-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 480px) {
  .project-problems-grid {
    grid-template-columns: 1fr;
  }
}

.problem-card {
  padding: var(--spacing-lg);
  background: var(--color-background);
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-primary);
  border-radius: 0 8px 8px 0;
}
.problem-card .problem-area {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-primary);
  background: rgba(255, 87, 34, 0.08);
  display: inline-block;
  padding: 0.15rem 0.5rem;
  border-radius: 2px;
  margin-bottom: var(--spacing-sm);
}
.problem-card .problem-issue {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
  margin-bottom: 0.3rem;
}
.problem-card .problem-consequence {
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
}

.root-causes-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-md);
}
@media (max-width: 768px) {
  .root-causes-grid {
    grid-template-columns: 1fr;
  }
}

.root-cause-card {
  padding: var(--spacing-xl);
  background: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: 8px;
}
.root-cause-card h4 {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  margin-bottom: var(--spacing-sm);
}
.root-cause-card ul {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}
.root-cause-card ul li {
  font-size: var(--font-size-sm);
  line-height: 1.5;
  color: var(--color-text-secondary);
  padding-left: var(--spacing-md);
  position: relative;
}
.root-cause-card ul li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-size: var(--font-size-xs);
}

.principles-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
}
@media (max-width: 1024px) {
  .principles-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 480px) {
  .principles-grid {
    grid-template-columns: 1fr;
  }
}

.principle-item {
  padding: var(--spacing-lg);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  transition: all var(--transition-base);
}
.principle-item:hover {
  border-color: var(--color-primary);
  transform: translateY(-2px);
}
.principle-item .principle-number {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-extrabold);
  color: var(--color-primary);
  opacity: 0.2;
  line-height: 1;
  display: block;
  margin-bottom: var(--spacing-sm);
}
.principle-item h4 {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
  margin-bottom: 0.3rem;
}
.principle-item p {
  font-size: var(--font-size-sm);
  line-height: 1.5;
  color: var(--color-text-secondary);
  margin-bottom: 0;
}

.stack-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
}
@media (max-width: 1024px) {
  .stack-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 480px) {
  .stack-grid {
    grid-template-columns: 1fr;
  }
}

.stack-card {
  padding: var(--spacing-xl);
  background: var(--color-background-alt);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  text-align: center;
  transition: all var(--transition-base);
}
.stack-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-2px);
}
.stack-card .stack-icon {
  width: 48px;
  height: 48px;
  background: var(--color-primary);
  color: white;
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: var(--font-weight-extrabold);
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-md);
}
.stack-card h4 {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
  margin-bottom: var(--spacing-xs);
}
.stack-card p {
  font-size: var(--font-size-sm);
  line-height: 1.5;
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-sm);
}
.stack-card .stack-tag {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  color: var(--color-primary);
  background: rgba(255, 87, 34, 0.08);
  padding: 0.2rem 0.6rem;
  border-radius: 3px;
}

.components-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-md);
}
@media (max-width: 1024px) {
  .components-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 480px) {
  .components-grid {
    grid-template-columns: 1fr;
  }
}

.component-card {
  padding: var(--spacing-xl);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  transition: all var(--transition-base);
}
.component-card:hover {
  border-color: var(--color-primary);
}
.component-card h4 {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
  margin-bottom: var(--spacing-xs);
}
.component-card p {
  font-size: var(--font-size-sm);
  line-height: 1.5;
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-sm);
}
.component-card .component-stat {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  color: var(--color-primary);
  background: rgba(255, 87, 34, 0.08);
  padding: 0.2rem 0.6rem;
  border-radius: 3px;
  display: inline-block;
}

.phases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}
@media (max-width: 768px) {
  .phases-grid {
    grid-template-columns: 1fr;
  }
}

.phase-card {
  padding: var(--spacing-xl);
  background: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  position: relative;
  overflow: hidden;
}
.phase-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--color-primary);
}
.phase-card .phase-label {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-primary);
  margin-bottom: var(--spacing-xs);
}
.phase-card .phase-title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
  margin-bottom: var(--spacing-md);
}
.phase-card .phase-items {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}
.phase-card .phase-items li {
  font-size: var(--font-size-sm);
  line-height: 1.5;
  color: var(--color-text-secondary);
  padding-left: var(--spacing-md);
  position: relative;
}
.phase-card .phase-items li::before {
  content: "▸";
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-size: var(--font-size-xs);
}

.results-metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border: 1px solid var(--color-border);
  border-radius: 12px;
  overflow: hidden;
  margin-bottom: var(--spacing-xl);
}
@media (max-width: 1024px) {
  .results-metrics {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 480px) {
  .results-metrics {
    grid-template-columns: 1fr;
  }
}

.result-metric {
  padding: var(--spacing-xl);
  border-right: 1px solid var(--color-border);
  position: relative;
}
.result-metric:last-child {
  border-right: none;
}
@media (max-width: 1024px) {
  .result-metric:nth-child(2) {
    border-right: none;
  }
  .result-metric:nth-child(1), .result-metric:nth-child(2) {
    border-bottom: 1px solid var(--color-border);
  }
}
@media (max-width: 480px) {
  .result-metric {
    border-right: none;
    border-bottom: 1px solid var(--color-border);
  }
  .result-metric:last-child {
    border-bottom: none;
  }
}
.result-metric::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--color-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}
.result-metric:hover::before {
  transform: scaleX(1);
}
.result-metric .result-metric-header {
  margin-bottom: var(--spacing-sm);
}
.result-metric .result-change {
  display: block;
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-extrabold);
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: 0.3rem;
}
@media (max-width: 768px) {
  .result-metric .result-change {
    font-size: var(--font-size-3xl);
  }
}
.result-metric .result-metric-name {
  display: block;
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.4;
}
.result-metric .result-comparison {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: var(--font-size-xs);
}
.result-metric .result-before {
  color: var(--color-text-secondary);
  text-decoration: line-through;
}
.result-metric .result-arrow {
  color: var(--color-primary);
}
.result-metric .result-after {
  color: var(--color-text);
  font-weight: var(--font-weight-bold);
}

.roi-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-md);
}
@media (max-width: 768px) {
  .roi-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 480px) {
  .roi-grid {
    grid-template-columns: 1fr;
  }
}

.roi-card {
  padding: var(--spacing-xl);
  background: var(--color-background-alt);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}
.roi-card .roi-label {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-secondary);
}
.roi-card .roi-value {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-extrabold);
  color: var(--color-text);
  line-height: 1.2;
}
.roi-card .roi-value--highlight {
  color: var(--color-primary);
}
.roi-card .roi-detail {
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
}

.lessons-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
}
@media (max-width: 768px) {
  .lessons-grid {
    grid-template-columns: 1fr;
  }
}

.lesson-card {
  display: flex;
  gap: var(--spacing-lg);
  padding: var(--spacing-xl);
  background: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  align-items: flex-start;
}
.lesson-card .lesson-number {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-extrabold);
  color: var(--color-primary);
  opacity: 0.2;
  line-height: 1;
  flex-shrink: 0;
}
.lesson-card .lesson-content h4 {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
  margin-bottom: var(--spacing-xs);
}
.lesson-card .lesson-content p {
  font-size: var(--font-size-sm);
  line-height: 1.6;
  color: var(--color-text-secondary);
  margin-bottom: 0;
}

.project-footer-nav {
  padding: var(--spacing-2xl) var(--spacing-md);
  max-width: var(--max-width);
  margin: 0 auto;
  border-top: 1px solid var(--color-border);
}

.project-back-link {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--color-primary);
  text-decoration: none;
  transition: all var(--transition-base);
}
.project-back-link:hover {
  opacity: 0.7;
  transform: translateX(-4px);
}

.project-documents {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--spacing-lg) var(--spacing-md);
}
@media (max-width: 768px) {
  .project-documents {
    padding: var(--spacing-md) var(--spacing-md);
  }
}

.project-documents-inner {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-lg) var(--spacing-xl);
  border: 2px solid var(--color-border);
  border-radius: 12px;
  background: var(--color-background);
}
@media (max-width: 768px) {
  .project-documents-inner {
    flex-direction: column;
    align-items: flex-start;
    padding: var(--spacing-md);
    gap: var(--spacing-sm);
  }
}

.project-documents-label {
  font-family: var(--font-primary);
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  white-space: nowrap;
}

.project-documents-links {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
}

.project-doc-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border: 2px solid var(--color-primary);
  border-radius: 8px;
  color: var(--color-primary);
  font-family: var(--font-primary);
  font-size: var(--font-size-sm);
  font-weight: 600;
  text-decoration: none;
  transition: all var(--transition-base);
}
.project-doc-link svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}
.project-doc-link:hover {
  background: var(--color-primary);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(255, 87, 34, 0.3);
}
@media (max-width: 480px) {
  .project-doc-link {
    padding: 8px 16px;
    font-size: 13px;
  }
}

.nav-menu li a.active {
  color: var(--color-primary);
}
.nav-menu li a.active::after {
  transform: translateX(-50%) scaleX(1);
}
@media (max-width: 768px) {
  .nav-menu li a.active::after {
    transform: scaleX(1);
  }
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 6px;
  width: 32px;
  height: 32px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  z-index: 1001;
}
@media (max-width: 768px) {
  .hamburger {
    display: flex;
  }
}
.hamburger .hamburger-line {
  width: 100%;
  height: 2px;
  background: var(--color-text);
  transition: all var(--transition-base);
  border-radius: 2px;
}
.hamburger.active .hamburger-line:nth-child(1) {
  transform: rotate(45deg) translate(7px, 7px);
}
.hamburger.active .hamburger-line:nth-child(2) {
  opacity: 0;
}
.hamburger.active .hamburger-line:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -7px);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
}
@media (max-width: 1024px) {
  .nav-menu {
    gap: var(--spacing-md);
  }
}
@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: var(--color-background);
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    gap: var(--spacing-xl);
    padding: var(--spacing-2xl);
    box-shadow: -4px 0 24px rgba(0, 0, 0, 0.1);
    transition: right var(--transition-base);
    z-index: 1000;
  }
  .nav-menu.active {
    right: 0;
  }
}
@media (max-width: 768px) {
  .nav-menu li {
    width: 100%;
  }
}
.nav-menu li a {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: 4px;
  transition: all var(--transition-base);
  position: relative;
}
@media (max-width: 768px) {
  .nav-menu li a {
    display: block;
    font-size: var(--font-size-lg);
    padding: var(--spacing-sm);
    width: 100%;
  }
}
.nav-menu li a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%) scaleX(0);
  width: 80%;
  height: 2px;
  background: var(--color-primary);
  transition: transform var(--transition-base);
}
@media (max-width: 768px) {
  .nav-menu li a::after {
    left: 0;
    transform: scaleX(0);
    transform-origin: left;
  }
}
.nav-menu li a:hover {
  color: var(--color-primary);
}
.nav-menu li a:hover::after {
  transform: translateX(-50%) scaleX(1);
}
@media (max-width: 768px) {
  .nav-menu li a:hover::after {
    transform: scaleX(1);
  }
}

.nav-overlay {
  display: none;
}
@media (max-width: 768px) {
  .nav-overlay {
    display: block;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    z-index: 999;
  }
  .nav-overlay.active {
    opacity: 1;
    visibility: visible;
  }
}

.help-card {
  padding: var(--spacing-2xl);
  background: var(--color-background);
  border: 2px solid var(--color-border);
  border-radius: 12px;
  transition: all var(--transition-base);
  position: relative;
  display: grid;
  grid-template-columns: 80px 1fr;
  grid-template-rows: auto 1fr;
  gap: var(--spacing-md) var(--spacing-lg);
}
@media (max-width: 768px) {
  .help-card {
    padding: var(--spacing-xl);
    grid-template-columns: 64px 1fr;
  }
}
@media (max-width: 480px) {
  .help-card {
    padding: var(--spacing-lg);
    grid-template-columns: 1fr;
    grid-template-rows: auto auto auto;
    gap: var(--spacing-md);
  }
}
.help-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}
.help-card .help-icon {
  grid-row: 1/3;
  width: 80px;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  align-self: center;
}
@media (max-width: 768px) {
  .help-card .help-icon {
    width: 64px;
    height: 64px;
  }
}
@media (max-width: 480px) {
  .help-card .help-icon {
    grid-row: auto;
    width: 56px;
    height: 56px;
    align-self: start;
  }
}
.help-card .help-icon svg, .help-card .help-icon img {
  width: 100%;
  height: 100%;
  color: var(--color-primary);
}
.help-card h3 {
  grid-column: 2;
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  margin-bottom: 0;
  color: var(--color-text);
  text-transform: uppercase;
  letter-spacing: 0.02em;
  align-self: start;
}
@media (max-width: 768px) {
  .help-card h3 {
    font-size: var(--font-size-lg);
  }
}
@media (max-width: 480px) {
  .help-card h3 {
    grid-column: 1;
    font-size: var(--font-size-base);
  }
}
.help-card p {
  grid-column: 2;
  font-size: var(--font-size-base);
  line-height: 1.7;
  color: var(--color-text-secondary);
  margin-bottom: 0;
  align-self: start;
}
@media (max-width: 768px) {
  .help-card p {
    font-size: var(--font-size-sm);
  }
}
@media (max-width: 480px) {
  .help-card p {
    grid-column: 1;
    font-size: var(--font-size-sm);
  }
}

.skill-item {
  padding: var(--spacing-lg);
  background: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  transition: all var(--transition-base);
  text-align: center;
}
@media (max-width: 480px) {
  .skill-item {
    padding: var(--spacing-md);
  }
}
.skill-item:hover {
  border-color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}
.skill-item .skill-icon {
  margin: 0 auto var(--spacing-md);
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.skill-item .skill-icon .icon-placeholder {
  width: 100%;
  height: 100%;
  font-size: var(--font-size-lg);
}
.skill-item .skill-name {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--spacing-sm);
  color: var(--color-text);
}
.skill-item .skill-description {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.5;
  margin-bottom: 0;
}

.language-item {
  padding: var(--spacing-xl);
  background: rgba(255, 255, 255, 0.1);
  border: 2px solid rgba(255, 255, 255, 0.2);
  border-radius: 12px;
  text-align: center;
  transition: all var(--transition-base);
}
@media (max-width: 768px) {
  .language-item {
    padding: var(--spacing-lg);
  }
}
.language-item:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: var(--color-background);
  transform: translateY(-4px);
}
.language-item .language-code {
  font-size: var(--font-size-6xl);
  font-weight: var(--font-weight-extrabold);
  color: var(--color-text);
  margin-bottom: var(--spacing-sm);
}
@media (max-width: 480px) {
  .language-item .language-code {
    font-size: var(--font-size-5xl);
  }
}
.language-item .language-name {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
  margin-bottom: var(--spacing-xs);
}
.language-item .language-level {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
  margin-bottom: var(--spacing-sm);
  opacity: 0.9;
}
.language-item .language-description {
  font-size: var(--font-size-sm);
  color: var(--color-text);
  opacity: 0.8;
  line-height: 1.5;
  margin-bottom: 0;
}

.education-item {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: var(--spacing-xl);
}
@media (max-width: 768px) {
  .education-item {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }
}
.education-item .education-date {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}
.education-item .education-date .date-range {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-background);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.education-item .education-date .education-location {
  font-size: var(--font-size-sm);
  color: var(--color-background);
  opacity: 0.8;
}
.education-item .education-details .education-title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-background);
  margin-bottom: var(--spacing-sm);
}
@media (max-width: 480px) {
  .education-item .education-details .education-title {
    font-size: var(--font-size-lg);
  }
}
.education-item .education-details .education-institution {
  font-size: var(--font-size-base);
  color: var(--color-background);
  margin-bottom: var(--spacing-md);
  opacity: 0.9;
}
.education-item .education-details .education-institution a {
  text-decoration: underline;
}
.education-item .education-details .education-institution a:hover {
  opacity: 0.8;
}
.education-item .education-details .education-description {
  font-size: var(--font-size-sm);
  line-height: 1.7;
  color: var(--color-background);
  opacity: 0.85;
  margin-bottom: 0;
}

.complementary-item {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: var(--spacing-md);
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}
@media (max-width: 480px) {
  .complementary-item {
    grid-template-columns: 1fr;
    gap: var(--spacing-xs);
  }
}
.complementary-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}
.complementary-item time {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  color: var(--color-background);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  opacity: 0.8;
}
.complementary-item h4 {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-background);
  margin-bottom: var(--spacing-xs);
  line-height: 1.4;
}
.complementary-item p {
  font-size: var(--font-size-xs);
  color: var(--color-background);
  opacity: 0.7;
  margin-bottom: 0;
}

.timeline {
  max-width: var(--max-width);
  margin: 0 auto;
  position: relative;
}
.timeline::before {
  content: "";
  position: absolute;
  left: 200px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--color-border);
}
@media (max-width: 768px) {
  .timeline::before {
    left: 0;
  }
}

.timeline-item {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: var(--spacing-xl);
  position: relative;
  padding-bottom: var(--spacing-2xl);
}
@media (max-width: 768px) {
  .timeline-item {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
    padding-left: var(--spacing-lg);
    padding-bottom: var(--spacing-xl);
  }
}
.timeline-item:last-child {
  padding-bottom: 0;
}
.timeline-item::after {
  content: "";
  position: absolute;
  left: 200px;
  top: 8px;
  width: 12px;
  height: 12px;
  background: var(--color-primary);
  border-radius: 50%;
  transform: translateX(-5px);
  box-shadow: 0 0 0 4px var(--color-background);
}
@media (max-width: 768px) {
  .timeline-item::after {
    left: 0;
    transform: translateX(-5px);
  }
}
.timeline-item .timeline-date {
  display: flex;
  flex-direction: column;
  padding-right: var(--spacing-md);
}
@media (max-width: 768px) {
  .timeline-item .timeline-date {
    padding-right: 0;
  }
}
.timeline-item .timeline-date .date-range {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.timeline-item .timeline-content .timeline-title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
  margin-bottom: var(--spacing-xs);
}
@media (max-width: 480px) {
  .timeline-item .timeline-content .timeline-title {
    font-size: var(--font-size-lg);
  }
}
.timeline-item .timeline-content .timeline-company {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--color-primary);
  margin-bottom: var(--spacing-md);
}
.timeline-item .timeline-content .timeline-description {
  list-style: none;
}
.timeline-item .timeline-content .timeline-description li {
  font-size: var(--font-size-base);
  line-height: 1.7;
  color: var(--color-text-secondary);
  padding-left: var(--spacing-lg);
  margin-bottom: var(--spacing-sm);
  position: relative;
}
@media (max-width: 480px) {
  .timeline-item .timeline-content .timeline-description li {
    font-size: var(--font-size-sm);
    padding-left: var(--spacing-md);
  }
}
.timeline-item .timeline-content .timeline-description li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-weight: var(--font-weight-bold);
}
.timeline-item .timeline-content .timeline-description li:last-child {
  margin-bottom: 0;
}
.timeline-item .timeline-content .timeline-value {
  margin-top: var(--spacing-md);
  font-size: var(--font-size-sm);
  color: var(--color-primary);
  font-style: italic;
  line-height: 1.6;
}

.handwriting-annotation {
  position: absolute;
  opacity: 0;
  transform: scale(0.9);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
  z-index: 1;
  pointer-events: none;
}
.handwriting-annotation.revealed {
  opacity: 1;
  transform: scale(1);
}
.handwriting-annotation img, .handwriting-annotation svg {
  width: auto;
  height: auto;
  max-height: 80px;
  display: block;
}
@media (max-width: 1024px) {
  .handwriting-annotation img, .handwriting-annotation svg {
    max-height: 60px;
  }
}
@media (max-width: 768px) {
  .handwriting-annotation img, .handwriting-annotation svg {
    max-height: 50px;
  }
}
.typewriter-line:nth-child(1) .handwriting-annotation {
  right: calc(50% + 450px);
  top: -30px;
  transform: scale(0.9);
}
.typewriter-line:nth-child(1) .handwriting-annotation.revealed {
  transform: scale(1);
}
@media (max-width: 1400px) {
  .typewriter-line:nth-child(1) .handwriting-annotation {
    right: calc(50% + 430px);
    top: -30px;
  }
}
@media (max-width: 1200px) {
  .typewriter-line:nth-child(1) .handwriting-annotation {
    right: calc(50% + 430px);
    top: -30px;
  }
}
@media (max-width: 1024px) {
  .typewriter-line:nth-child(1) .handwriting-annotation {
    right: calc(50% + 300px);
    top: -30px;
  }
}
@media (max-width: 900px) {
  .typewriter-line:nth-child(1) .handwriting-annotation {
    right: calc(50% + 300px);
    top: -30px;
  }
}
@media (max-width: 768px) {
  .typewriter-line:nth-child(1) .handwriting-annotation {
    display: none;
  }
}
.typewriter-line:nth-child(2) .handwriting-annotation {
  left: calc(50% + 400px);
  top: 50%;
  transform: translateY(-50%) scale(0.9);
}
.typewriter-line:nth-child(2) .handwriting-annotation.revealed {
  transform: translateY(-50%) scale(1);
}
@media (max-width: 1400px) {
  .typewriter-line:nth-child(2) .handwriting-annotation {
    left: calc(50% + 360px);
  }
}
@media (max-width: 1200px) {
  .typewriter-line:nth-child(2) .handwriting-annotation {
    left: calc(50% + 360px);
  }
}
@media (max-width: 1024px) {
  .typewriter-line:nth-child(2) .handwriting-annotation {
    left: calc(50% + 250px);
  }
}
@media (max-width: 900px) {
  .typewriter-line:nth-child(2) .handwriting-annotation {
    left: calc(50% + 250px);
  }
}
@media (max-width: 768px) {
  .typewriter-line:nth-child(2) .handwriting-annotation {
    display: none;
  }
}
.typewriter-line:nth-child(3) .handwriting-annotation {
  right: calc(50% + 250px);
  top: 50%;
  transform: translateY(-50%) scale(0.9);
}
.typewriter-line:nth-child(3) .handwriting-annotation.revealed {
  transform: translateY(-50%) scale(1);
}
@media (max-width: 1400px) {
  .typewriter-line:nth-child(3) .handwriting-annotation {
    right: calc(50% + 220px);
  }
}
@media (max-width: 1200px) {
  .typewriter-line:nth-child(3) .handwriting-annotation {
    right: calc(50% + 220px);
  }
}
@media (max-width: 1024px) {
  .typewriter-line:nth-child(3) .handwriting-annotation {
    right: calc(50% + 160px);
  }
}
@media (max-width: 900px) {
  .typewriter-line:nth-child(3) .handwriting-annotation {
    right: calc(50% + 180px);
  }
}
@media (max-width: 768px) {
  .typewriter-line:nth-child(3) .handwriting-annotation {
    display: none;
  }
}
.typewriter-line:nth-child(4) .handwriting-annotation {
  left: calc(50% + 250px);
  bottom: -60px;
  transform: scale(0.9);
}
.typewriter-line:nth-child(4) .handwriting-annotation.revealed {
  transform: scale(1);
}
@media (max-width: 1400px) {
  .typewriter-line:nth-child(4) .handwriting-annotation {
    left: calc(50% + 220px);
    bottom: -60px;
  }
}
@media (max-width: 1200px) {
  .typewriter-line:nth-child(4) .handwriting-annotation {
    left: calc(50% + 190px);
    bottom: -60px;
  }
}
@media (max-width: 1024px) {
  .typewriter-line:nth-child(4) .handwriting-annotation {
    left: calc(50% + 160px);
    bottom: -50px;
  }
}
@media (max-width: 900px) {
  .typewriter-line:nth-child(4) .handwriting-annotation {
    left: calc(50% + 130px);
    bottom: -50px;
  }
}
@media (max-width: 768px) {
  .typewriter-line:nth-child(4) .handwriting-annotation {
    display: none;
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
@keyframes fadeInScale {
  from {
    opacity: 0;
    transform: scale(0.8) rotate(-5deg);
  }
  to {
    opacity: 1;
    transform: scale(1) rotate(-5deg);
  }
}
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}
@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}
@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}
@keyframes bounce {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}
@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}
@keyframes rotateIn {
  from {
    opacity: 0;
    transform: rotate(-10deg);
  }
  to {
    opacity: 1;
    transform: rotate(0);
  }
}
.animate-fade-in-up {
  animation: fadeInUp 0.6s ease-out forwards;
}

.animate-fade-in {
  animation: fadeIn 0.6s ease-out forwards;
}

.animate-slide-in-left {
  animation: slideInLeft 0.6s ease-out forwards;
}

.animate-slide-in-right {
  animation: slideInRight 0.6s ease-out forwards;
}

.animate-scale-in {
  animation: scaleIn 0.5s ease-out forwards;
}

.stagger-1 {
  animation-delay: 0.1s;
}

.stagger-2 {
  animation-delay: 0.2s;
}

.stagger-3 {
  animation-delay: 0.3s;
}

.stagger-4 {
  animation-delay: 0.4s;
}

.stagger-5 {
  animation-delay: 0.5s;
}

.stagger-6 {
  animation-delay: 0.6s;
}

.stagger-7 {
  animation-delay: 0.7s;
}

.stagger-8 {
  animation-delay: 0.8s;
}

.stagger-9 {
  animation-delay: 0.9s;
}

.stagger-10 {
  animation-delay: 1s;
}

.scroll-reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s ease-out;
}
.scroll-reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}