:root {
  --bg-primary: #000000;
  --bg-secondary: #0f0f0f;
  --bg-tertiary: #1a1a1a;
  --text-primary: #ffffff;
  --text-secondary: #b8b8b8;
  --text-muted: #7a7a7a;
  --accent-primary: #ff7c9f;
  --accent-secondary: #ffb3c7;
  --border-color: #2a2a2a;
  --font-main: "Inter", sans-serif;
  --font-display: "Space Grotesk", sans-serif;
  --font-mono: "JetBrains Mono", monospace;
  --transition: 0.3s ease;
  --radius: 10px;
}

.light-theme {
  --bg-primary: #ffffff;
  --bg-secondary: #f5f0f2;
  --bg-tertiary: #ede5e8;
  --text-primary: #000000;
  --text-secondary: #5a5a5a;
  --text-muted: #888888;
  --accent-primary: #ff7c9f;
  --accent-secondary: #ffb3c7;
  --border-color: #d8cdd1;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  background: var(--bg-primary);
  font-family: var(--font-main);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  transition:
    background 0.5s ease,
    color 0.5s ease;
}

.nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  padding: 0.6rem 1rem;
  background: var(--bg-primary);
  border-bottom: 1px solid var(--border-color);
  z-index: 1000;
  transition: all var(--transition);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-logo {
  font-size: 1.5rem;
  font-weight: 700;
  font-family: var(--font-display);
  color: var(--accent-primary);
  text-decoration: none;
  flex: 1;
}

.nav-links {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  width: 100%;
  flex-direction: column;
  align-items: flex-start;
  gap: 1rem;
  padding: 1rem 2rem;
  background: var(--bg-secondary);
  transform: translateY(-200%);
  opacity: 0;
  pointer-events: none;
  transition:
    transform 0.4s ease,
    opacity var(--transition);
  list-style: none;
}

.nav-links.active {
  display: flex;
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}

.nav-links a {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition);
  position: relative;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text-primary);
}

.nav-links a::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent-primary);
  transition: width var(--transition);
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.theme-toggle,
.burger-menu {
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  transition: color var(--transition);
  color: var(--text-secondary);
}

.theme-toggle:hover,
.burger-menu:hover {
  color: var(--text-primary);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex: 1;
  justify-content: flex-end;
}

.burger-menu {
  display: block;
}

@media (min-width: 769px) {
  .nav {
    padding: 0.6rem 2rem;
  }

  .section {
    padding: 5rem 2rem;
  }

  .projects-grid {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  }

  .hero-content {
    padding: 2rem;
  }

  .skills-grid {
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 2rem;
  }

  .nav-links {
    position: static;
    flex-direction: row;
    width: auto;
    background: transparent;
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
    box-shadow: none;
    display: flex;
  }

  .burger-menu {
    display: none;
  }
}

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
  background: var(--bg-primary);
  background-image: radial-gradient(
    circle,
    var(--border-color) 1px,
    transparent 1px
  );
  background-size: 30px 30px;
  padding-top: 70px;
  box-sizing: border-box;
}

.hero-content {
  max-width: 800px;
  padding: 1rem;
  animation: fadeInUp 1s ease;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero-content img {
  margin: 0 auto 1rem;
  display: block;
}

.hero-greeting,
.hero-name,
.hero-title,
.cta-button {
  opacity: 0;
  animation: fadeInUp 1s ease forwards;
}

.hero-greeting {
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--text-secondary);
  margin-bottom: 0.2rem;
  animation-delay: 0.2s;
}

.hero-name {
  font-size: clamp(3.5rem, 12vw, 7rem);
  font-family: var(--font-display);
  font-weight: 700;
  margin-bottom: 0.2rem;
  line-height: 1.05;
  color: var(--accent-primary);
  animation-delay: 0.4s;
  letter-spacing: -0.02em;
}

.hero-title {
  font-size: clamp(1.1rem, 3vw, 1.75rem);
  font-weight: 300;
  color: var(--text-secondary);
  margin-bottom: 2.5rem;
  animation-delay: 0.6s;
  max-width: 520px;
  line-height: 1.4;
}

.cta-button,
.contact-email {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem 2rem;
  background: var(--accent-primary);
  color: var(--bg-primary);
  text-decoration: none;
  font-weight: 600;
  border-radius: var(--radius);
  transition: all var(--transition);
}

.contact-form {
  width: 100%;
  max-width: 560px;
  margin: 0 auto 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  text-align: left;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

@media (max-width: 500px) {
  .form-row { grid-template-columns: 1fr; }
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-field label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.form-field input,
.form-field textarea {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-family: var(--font-main);
  font-size: 0.95rem;
  padding: 0.75rem 1rem;
  outline: none;
  resize: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-field input:focus,
.form-field textarea:focus {
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px rgba(255, 124, 159, 0.12);
}

.form-submit {
  background: var(--accent-primary);
  color: var(--bg-primary);
  border: none;
  border-radius: var(--radius);
  padding: 0.9rem 2rem;
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition);
  width: 100%;
}

.form-submit:hover:not(:disabled) { background: var(--accent-secondary); }
.form-submit:disabled { opacity: 0.6; cursor: not-allowed; }

.form-toast {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  text-align: center;
  min-height: 1.2em;
}

.form-toast.success { color: var(--accent-primary); }
.form-toast.error   { color: var(--accent-secondary); }

.cta-button {
  font-family: var(--font-display);
  animation-delay: 0.8s;
}

.cta-button:hover {
  background: var(--accent-secondary);
  color: var(--bg-primary);
}

.section {
  padding: 3rem 1rem;
  max-width: 1200px;
  margin: 0 auto;
}

section[id] {
  scroll-margin-top: 70px;
}

.section-title {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 3rem;
  position: relative;
  color: var(--text-primary);
}

.section-title::after {
  content: "";
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 3px;
  background: var(--accent-primary);
  border-radius: 2px;
}

.background-text {
  font-size: 1.1rem;
  line-height: 1.8;
  color: var(--text-secondary);
  max-width: 800px;
  margin: 0 auto;
  text-align: justify;
}

.background-text p {
  margin-bottom: 1.5rem;
}

.project-category {
  margin-bottom: 4rem;
}

.project-category:last-child {
  margin-bottom: 0;
}

.category-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 2rem;
}

.category-label {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  font-weight: 700;
  font-family: var(--font-mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-primary);
  white-space: nowrap;
  padding: 0.3rem 0.75rem;
  border: 1px solid var(--accent-primary);
  border-radius: 4px;
}

.category-label i {
  font-size: 0.75rem;
}

.category-divider {
  flex: 1;
  height: 1px;
  background: var(--border-color);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.project-card.uniform {
  display: flex;
  flex-direction: column;
  align-items: center;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 1.5rem 1rem;
  transition:
    border var(--transition),
    box-shadow var(--transition),
    transform var(--transition);
  max-width: 100%;
  margin: 0 auto;
  text-decoration: none;
  color: inherit;
}

.project-card.uniform:hover {
  border-color: var(--accent-primary);
  box-shadow:
    0 0 20px rgba(255, 124, 159, 0.15),
    0 8px 32px rgba(0, 0, 0, 0.3);
  transform: translateY(-4px);
}

.project-thumb {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
  border-radius: 6px;
  margin-bottom: 1rem;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.08);
}

.project-info {
  width: 100%;
  text-align: left;
}

.project-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--accent-primary);
}

.project-description {
  font-size: 0.97rem;
  color: var(--text-secondary);
  margin-bottom: 0.75rem;
}

.project-meta {
  font-size: 0.85rem;
  margin-top: 0.5rem;
  padding-top: 0.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.07);
  opacity: 0.85;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.role-tag {
  font-family: var(--font-mono);
  background: var(--bg-tertiary);
  color: var(--accent-primary);
  padding: 2px 8px;
  border-radius: 4px;
  font-weight: 500;
  font-size: 0.85em;
}

.skills-tabs {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 3rem;
}

.skill-tab {
  font-family: var(--font-mono);
  padding: 0.75rem 1.5rem;
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  border: none;
  background: none;
}

.skill-tab.active {
  background: var(--accent-primary);
  color: var(--bg-primary);
  border-radius: var(--radius);
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
  animation: fadeIn 0.5s ease;
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
  gap: 1rem;
  margin-top: 2rem;
}

.skill-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 1.5rem;
  transition: all var(--transition);
}

.skill-item img {
  width: 48px;
  height: 48px;
  margin-bottom: 1rem;
  transition: transform var(--transition);
}

.skill-item:hover img {
  transform: scale(1.1);
}

.skill-name {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-align: center;
}

.blog-preview-desc {
  font-size: 1.1rem;
  color: var(--text-secondary);
  text-align: center;
  margin-bottom: 2rem;
}

#blog-preview-grid {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  overflow: hidden;
  margin-bottom: 2rem;
}

.blog-preview-cta {
  display: flex;
  width: fit-content;
  margin: 0 auto;
} 

.contact {
  background: var(--bg-secondary);
  text-align: center;
  padding-top: 6rem;
  padding-bottom: 6rem;
}

.contact-content {
  max-width: 600px;
  margin: 0 auto;
}

.contact-title {
  font-family: var(--font-display);
  font-size: 2rem;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.contact-description {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

.social-links {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-top: 2rem;
  flex-wrap: wrap;
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 50px;
  height: 50px;
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  text-decoration: none;
  transition: all var(--transition);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
}

.social-link:hover {
  background: var(--accent-primary);
  color: var(--bg-primary);
  border-color: var(--accent-primary);
  transform: translateY(-2px);
}

.footer {
  padding: 2rem;
  text-align: center;
  border-top: 1px solid var(--border-color);
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.8rem;
}

.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition:
    opacity 0.6s ease,
    transform 0.6s ease;
}

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

#progress-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: transparent;
  z-index: 10001;
}

#progress-bar {
  height: 100%;
  background: var(--accent-primary);
  width: 0%;
  transition: width 0.1s ease-out;
  box-shadow: 0 0 10px var(--accent-primary);
}

.blog-post-container {
  max-width: 800px;
  margin: 120px auto 60px;
  padding: 0 1.5rem;
}

.blog-header h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3rem);
  color: var(--text-primary);
  margin-bottom: 1rem;
}

.blog-meta {
  font-family: var(--font-mono);
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 3rem;
  display: flex;
  gap: 1.5rem;
}

.blog-content {
  color: var(--text-secondary);
  font-size: 1.1rem;
  line-height: 1.8;
}

.blog-content h2 {
  font-family: var(--font-display);
  color: var(--text-primary);
  margin: 2.5rem 0 1rem;
}

.blog-content a {
  text-decoration: none;
  color: var(--accent-primary);
}

.blog-content a:hover {
  color: var(--accent-secondary);
}

pre {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  padding: 1.5rem;
  border-radius: 8px;
  overflow-x: auto;
  margin: 2rem 0;
}

code {
  font-family: var(--font-mono);
  color: var(--accent-primary);
}

.back-home {
  font-family: var(--font-mono);
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: color var(--transition);
}

.back-home:hover {
  color: var(--accent-primary);
}

#blog.section {
  padding-top: calc(80px + 3rem);
}

#blog-grid {
  display: flex;
  flex-direction: column;
  gap: 0;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  overflow: hidden;
}

.blog-card {
  display: block;
  padding: 1.75rem 2rem;
  background: var(--bg-secondary);
  text-decoration: none;
  color: inherit;
  transition: background 0.2s ease;
  border-bottom: 1px solid var(--border-color);
  position: relative;
}

.blog-card:last-child {
  border-bottom: none;
}

.blog-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--accent-primary);
  opacity: 0;
  transition: opacity 0.2s ease;
}

.blog-card:hover {
  background: var(--bg-tertiary);
}

.blog-card:hover::before {
  opacity: 1;
}

.blog-card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.6rem;
}

.blog-card-title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.3;
  transition: color 0.2s ease;
}

.blog-card:hover .blog-card-title {
  color: var(--accent-primary);
}

.blog-card-arrow {
  font-size: 1rem;
  color: var(--text-muted);
  transition:
    transform 0.2s ease,
    color 0.2s ease;
  flex-shrink: 0;
  margin-top: 2px;
}

.blog-card:hover .blog-card-arrow {
  transform: translate(3px, -3px);
  color: var(--accent-primary);
}

.blog-card-meta {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.blog-card-meta span + span::before {
  content: "·";
  margin-right: 0.5rem;
  opacity: 0.4;
}

.blog-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.blog-card-tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--accent-primary);
  background: transparent;
  border: 1px solid color-mix(in srgb, var(--accent-primary) 30%, transparent);
  padding: 2px 8px;
  border-radius: 20px;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}