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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background-color: #000;
  color: #fff;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

ul, ol {
  list-style: none;
}

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

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

/* ===== Design Tokens ===== */
:root {
  /* Colors */
  --color-bg: #000;
  --color-bg-subtle: #0a0a0a;
  --color-text: #fff;
  --color-text-secondary: #888;
  --color-text-muted: #555;
  --color-border: #222;
  --color-border-light: #333;

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 5rem;
  --space-3xl: 8rem;

  /* Container */
  --container-max: 1200px;
  --container-padding: 1.5rem;

  /* Typography */
  --font-mono: 'SF Mono', 'Fira Code', 'Consolas', monospace;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 2rem;
  --text-4xl: 2.5rem;
  --text-5xl: 3.5rem;

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

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

.section {
  padding: var(--space-3xl) 0;
}

/* ===== Navigation ===== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: var(--space-md) 0;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
}

.nav-inner {
  display: flex;
  justify-content: flex-start;
  align-items: center;
}

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

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--text-xl);
  font-weight: 600;
  letter-spacing: -0.02em;
}

.nav-logo-img {
  height: 142px;
  width: 142px;
  object-fit: contain;
  margin: -52px 0 -62px 0;
}

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

.nav-link {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}

.nav-link:hover {
  color: var(--color-text);
}

.nav-link.active {
  color: var(--color-text);
}

/* ===== Hero ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 80px;
}

.hero-content {
  max-width: 800px;
}

.hero-title {
  font-size: clamp(var(--text-4xl), 8vw, var(--text-5xl));
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: var(--space-lg);
}

.hero-subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  max-width: 600px;
  margin-bottom: var(--space-xl);
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-sm) var(--space-lg);
  background: var(--color-text);
  color: var(--color-bg);
  font-size: var(--text-sm);
  font-weight: 500;
  border-radius: 4px;
  transition: opacity var(--transition-fast);
}

.hero-cta:hover {
  opacity: 0.9;
}

/* ===== About Section ===== */
.about {
  border-top: 1px solid var(--color-border);
}

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

.about-header {
  margin-bottom: var(--space-xl);
}

.section-label {
  font-size: var(--text-sm);
  font-family: var(--font-mono);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-sm);
}

.section-title {
  font-size: var(--text-3xl);
  font-weight: 600;
  letter-spacing: -0.02em;
}

.about-text {
  color: var(--color-text-secondary);
  font-size: var(--text-lg);
  max-width: 700px;
}

.about-brands {
  display: flex;
  gap: var(--space-lg);
  margin-top: var(--space-xl);
  flex-wrap: wrap;
}

.brand-tag {
  padding: var(--space-xs) var(--space-sm);
  border: 1px solid var(--color-border-light);
  border-radius: 4px;
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

/* ===== Projects Section (Homepage preview) ===== */
.projects-preview {
  border-top: 1px solid var(--color-border);
}

/* ===== Contact Section ===== */
.contact {
  border-top: 1px solid var(--color-border);
}

.contact-content {
  max-width: 600px;
}

.contact-email {
  font-size: var(--text-2xl);
  font-weight: 500;
  margin-top: var(--space-lg);
  transition: opacity var(--transition-fast);
}

.contact-email:hover {
  opacity: 0.7;
}

.contact-location {
  color: var(--color-text-secondary);
  margin-top: var(--space-sm);
}

/* ===== Footer ===== */
.footer {
  padding: var(--space-xl) 0;
  border-top: 1px solid var(--color-border);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.footer-copyright {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.footer-trading {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-top: 0.25rem;
}

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

.footer-link {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}

.footer-link:hover {
  color: var(--color-text);
}

.footer-contact {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
}

.footer-email {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}

.footer-email:hover {
  color: var(--color-text);
}

/* ===== Projects Page ===== */
.page-header {
  padding-top: 120px;
  padding-bottom: var(--space-xl);
}

.page-title {
  font-size: var(--text-4xl);
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-sm);
}

.page-description {
  color: var(--color-text-secondary);
  font-size: var(--text-lg);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: var(--space-lg);
  padding-bottom: var(--space-3xl);
}

.project-card {
  background: var(--color-bg-subtle);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: var(--space-lg);
  transition: border-color var(--transition-base), transform var(--transition-base), border-radius var(--transition-base);
  cursor: pointer;
  position: relative;
}

.project-card::before,
.project-card::after,
.project-card .corner {
  content: '';
  position: absolute;
  width: 20px;
  height: 20px;
  opacity: 0;
  transition: opacity var(--transition-base);
}

.project-card::before {
  top: -1px;
  left: -1px;
  border-top: 2px solid #fff;
  border-left: 2px solid #fff;
}

.project-card::after {
  top: -1px;
  right: -1px;
  border-top: 2px solid #fff;
  border-right: 2px solid #fff;
}

.project-card:hover {
  border-color: var(--color-border-light);
  transform: translateY(-2px);
  border-radius: 0;
}

.project-card .corner-bl {
  bottom: -1px;
  left: -1px;
  border-bottom: 2px solid #fff;
  border-left: 2px solid #fff;
}

.project-card .corner-br {
  bottom: -1px;
  right: -1px;
  border-bottom: 2px solid #fff;
  border-right: 2px solid #fff;
}

.project-card:hover::before,
.project-card:hover::after,
.project-card:hover .corner {
  opacity: 1;
}

/* ===== Modal ===== */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.9);
  z-index: 1000;
  overflow-y: auto;
  opacity: 0;
  transition: opacity var(--transition-base);
}

.modal.active {
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding: var(--space-xl);
  opacity: 1;
}

.modal-content {
  background: var(--color-bg-subtle);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  max-width: 900px;
  width: 90%;
  padding: var(--space-xl);
  margin: var(--space-xl) 0;
  position: relative;
  animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.modal-close {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  font-size: var(--text-2xl);
  color: var(--color-text-secondary);
  background: none;
  border: none;
  cursor: pointer;
  transition: color var(--transition-fast);
  line-height: 1;
}

.modal-close:hover {
  color: var(--color-text);
}

.modal-title {
  font-size: var(--text-3xl);
  font-weight: 600;
  margin-bottom: var(--space-md);
  padding-right: var(--space-xl);
}

.modal-tags {
  display: flex;
  gap: var(--space-xs);
  flex-wrap: wrap;
  margin-bottom: var(--space-xl);
}

.modal-body h3 {
  font-size: var(--text-lg);
  font-weight: 600;
  margin-top: var(--space-lg);
  margin-bottom: var(--space-sm);
  color: var(--color-text);
}

.modal-body h3:first-child {
  margin-top: 0;
}

.modal-body p {
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-sm);
}

.modal-body ul {
  list-style: disc;
  padding-left: var(--space-lg);
  color: var(--color-text-secondary);
}

.modal-body li {
  margin-bottom: var(--space-xs);
}

.modal-image {
  width: 100%;
  border-radius: 8px;
  margin: var(--space-sm) 0;
  border: 1px solid var(--color-border);
}

@media (max-width: 768px) {
  .modal.active {
    padding: var(--space-sm);
  }

  .modal-content {
    padding: var(--space-lg);
    margin: var(--space-md) 0;
  }

  .modal-title {
    font-size: var(--text-2xl);
  }
}

.project-name {
  font-size: var(--text-xl);
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.project-description {
  color: var(--color-text-secondary);
  font-size: var(--text-base);
  margin-bottom: var(--space-md);
}

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

.project-tag {
  font-size: var(--text-sm);
  font-family: var(--font-mono);
  color: var(--color-text-muted);
  padding: 2px 8px;
  background: var(--color-bg);
  border-radius: 4px;
}

.project-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: var(--text-sm);
  color: var(--color-text);
  transition: opacity var(--transition-fast);
}

.project-link:hover {
  opacity: 0.7;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  :root {
    --container-padding: 1rem;
  }

  .nav-logo-img {
    height: 80px;
    width: 80px;
    margin: -25px 0 -30px 0;
  }

  .nav-logo {
    font-size: var(--text-base);
  }

  .hero {
    min-height: auto;
    padding: 120px 0 var(--space-2xl);
  }

  .hero-subtitle {
    font-size: var(--text-base);
  }

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

  .nav-links {
    gap: var(--space-md);
  }

  .nav-link {
    font-size: 0.8rem;
  }

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

  .project-card {
    padding: var(--space-md);
  }

  .project-name {
    font-size: var(--text-lg);
  }

  .project-description {
    font-size: var(--text-sm);
  }

  .footer-inner {
    flex-direction: column;
    text-align: center;
    gap: var(--space-lg);
  }

  .footer-contact {
    order: -1;
  }

  .contact-email {
    font-size: var(--text-xl);
    word-break: break-all;
  }

  .about-text {
    font-size: var(--text-base);
  }

  .modal-body h4 {
    font-size: var(--text-base);
  }

  .modal-body p,
  .modal-body li {
    font-size: var(--text-sm);
  }
}

@media (max-width: 480px) {
  .nav-left {
    gap: var(--space-sm);
  }

  .nav-logo-img {
    height: 60px;
    width: 60px;
    margin: -18px 0 -22px 0;
  }

  .nav-logo {
    font-size: var(--text-sm);
  }

  .nav-links {
    gap: var(--space-sm);
  }

  .hero {
    padding: 100px 0 var(--space-xl);
  }

  .hero-title {
    font-size: var(--text-2xl);
  }

  .hero-subtitle {
    font-size: var(--text-sm);
  }

  .hero-cta {
    padding: var(--space-xs) var(--space-md);
    font-size: 0.8rem;
  }

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

  .section-label {
    font-size: 0.75rem;
  }

  .about-text {
    font-size: var(--text-sm);
  }

  .about-brands {
    flex-direction: column;
    gap: var(--space-sm);
  }

  .project-tag {
    font-size: 0.75rem;
    padding: 1px 6px;
  }

  .modal-content {
    padding: var(--space-md);
    width: 95%;
  }

  .modal-title {
    font-size: var(--text-xl);
  }

  .modal-tags {
    gap: 4px;
  }

  .contact-email {
    font-size: var(--text-lg);
  }

  .footer-copyright {
    font-size: 0.75rem;
  }

  .footer-email,
  .footer-link {
    font-size: 0.8rem;
  }
}