/* ===========================
   CSS Variables & Themes
   =========================== */
:root {
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  --font-sans: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  /* Dark theme (default) */
  --bg-primary: #0a0a0f;
  --bg-secondary: #111118;
  --bg-card: #16161e;
  --bg-card-hover: #1c1c28;
  --bg-nav: rgba(10, 10, 15, 0.85);
  --text-primary: #e4e4ee;
  --text-secondary: #a0a0b8;
  --text-muted: #6b6b82;
  --accent: #64ffda;
  --accent-secondary: #7c5cfc;
  --accent-gradient: linear-gradient(135deg, #64ffda, #7c5cfc);
  --border: #232336;
  --border-light: #2a2a4040;
  --shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
  --shadow-hover: 0 8px 50px rgba(100, 255, 218, 0.08);
  --glow: 0 0 20px rgba(100, 255, 218, 0.08);
}

[data-theme="light"] {
  --bg-primary: #f8f8fc;
  --bg-secondary: #ffffff;
  --bg-card: #ffffff;
  --bg-card-hover: #f0f0f8;
  --bg-nav: rgba(248, 248, 252, 0.85);
  --text-primary: #1a1a2e;
  --text-secondary: #555577;
  --text-muted: #8888aa;
  --accent: #0ea57a;
  --accent-secondary: #7c5cfc;
  --accent-gradient: linear-gradient(135deg, #0ea57a, #7c5cfc);
  --border: #e0e0f0;
  --border-light: #e8e8f5;
  --shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
  --shadow-hover: 0 8px 40px rgba(14, 165, 122, 0.08);
  --glow: 0 0 20px rgba(14, 165, 122, 0.06);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
  transition: background-color 0.3s ease, color 0.3s ease;
}

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

ul { list-style: none; }

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

::selection {
  background: rgba(100, 255, 218, 0.25);
  color: var(--text-primary);
}

/* ===========================
   Container
   =========================== */
.container {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* ===========================
   Section Common
   =========================== */
section {
  padding: 100px 0;
}

.section-title {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 3rem;
  color: var(--text-primary);
  font-family: var(--font-sans);
}

.section-number {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--accent);
}

.section-line {
  flex: 1;
  height: 1px;
  background: var(--border);
  margin-left: 0.5rem;
}

.section-cta {
  text-align: center;
  margin-top: 2.5rem;
}

/* ===========================
   Navigation
   =========================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--bg-nav);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-light);
  transition: all 0.3s ease;
}

.navbar.scrolled {
  box-shadow: 0 1px 20px rgba(0, 0, 0, 0.15);
}

.nav-container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

.nav-logo {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 2px;
  transition: color 0.3s ease;
}

.logo-bracket { color: var(--accent); }
.logo-text { color: var(--text-primary); }

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

.nav-links {
  display: flex;
  gap: 2rem;
}

.nav-link {
  font-size: 0.9rem;
  font-family: var(--font-mono);
  color: var(--text-secondary);
  transition: color 0.3s ease;
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width 0.3s ease;
}

.nav-link:hover,
.nav-link.active {
  color: var(--accent);
}

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

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

/* Theme Toggle */
.theme-toggle {
  background: none;
  border: 1px solid var(--border);
  border-radius: 50%;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text-secondary);
  transition: all 0.3s ease;
}

.theme-toggle:hover {
  color: var(--accent);
  border-color: var(--accent);
}

[data-theme="dark"] .icon-sun { display: block; }
[data-theme="dark"] .icon-moon { display: none; }
[data-theme="light"] .icon-sun { display: none; }
[data-theme="light"] .icon-moon { display: block; }

/* Mobile Menu */
.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.mobile-menu-btn span {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  transition: all 0.3s ease;
}

.mobile-menu-btn.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}
.mobile-menu-btn.active span:nth-child(2) {
  opacity: 0;
}
.mobile-menu-btn.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ===========================
   Hero Section
   =========================== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  padding-top: 70px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background:
    radial-gradient(circle at 20% 50%, rgba(124, 92, 252, 0.06) 0%, transparent 50%),
    radial-gradient(circle at 80% 50%, rgba(100, 255, 218, 0.04) 0%, transparent 50%);
  pointer-events: none;
}

.hero-content {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 2rem;
  width: 100%;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.hero-greeting { z-index: 1; }

.greeting-line {
  font-family: var(--font-mono);
  color: var(--accent);
  font-size: 1rem;
  margin-bottom: 0.5rem;
  display: block;
}

.hero-name {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 0.5rem;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-role {
  font-size: 1.4rem;
  font-family: var(--font-mono);
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  min-height: 2rem;
}

.role-prefix { color: var(--text-muted); }
.role-text { color: var(--accent); }

.cursor {
  color: var(--accent);
  animation: blink 1s step-end infinite;
}

@keyframes blink {
  50% { opacity: 0; }
}

.hero-desc {
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 2rem;
  max-width: 480px;
}

.hero-cta {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 1.75rem;
  border-radius: 8px;
  font-size: 0.95rem;
  font-family: var(--font-mono);
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
  border: none;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--accent-gradient);
  color: #fff;
  box-shadow: 0 4px 15px rgba(124, 92, 252, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(124, 92, 252, 0.45);
}

.btn-secondary {
  background: transparent;
  color: var(--accent);
  border: 1.5px solid var(--accent);
}

.btn-secondary:hover {
  background: rgba(100, 255, 218, 0.08);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: var(--text-secondary);
  border: 1.5px solid var(--border);
}

.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* Code Window */
.code-window {
  background: var(--bg-card);
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  max-width: 420px;
}

.code-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
}

.dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}
.dot.red { background: #ff5f57; }
.dot.yellow { background: #febc2e; }
.dot.green { background: #28c840; }

.code-filename {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.code-body {
  padding: 20px 24px;
  overflow-x: auto;
}

.code-body pre {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.8;
}

.code-body code { color: var(--text-secondary); }

.kw { color: #c792ea; }
.fn { color: #82aaff; }
.prop { color: #89ddff; }
.str { color: #c3e88d; }

/* Scroll Indicator */
.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.8rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  animation: float 2s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

/* ===========================
   About Section
   =========================== */
.about-content {
  display: grid;
  grid-template-columns: 3fr 2fr;
  gap: 4rem;
  align-items: center;
}

.about-text p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
  font-size: 1.05rem;
}

.about-tech-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
  margin-top: 1.5rem;
}

.about-tech-list li {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.about-tech-list .arrow {
  color: var(--accent);
  margin-right: 0.5rem;
}

.about-image .image-wrapper {
  position: relative;
  max-width: 300px;
}

.about-image .image-placeholder {
  width: 100%;
  aspect-ratio: 1;
  background: var(--bg-card);
  border-radius: 12px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  color: var(--text-muted);
  border: 2px dashed var(--border);
  font-size: 0.85rem;
  position: relative;
  z-index: 1;
}

.about-image .image-border {
  position: absolute;
  top: 12px;
  left: 12px;
  right: -12px;
  bottom: -12px;
  border: 2px solid var(--accent);
  border-radius: 12px;
  z-index: 0;
  transition: all 0.3s ease;
}

.about-image:hover .image-border {
  top: 8px;
  left: 8px;
  right: -8px;
  bottom: -8px;
}

/* ===========================
   Skills Section
   =========================== */
.skills {
  background: var(--bg-secondary);
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 1.25rem;
}

.skill-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.5rem;
  text-align: center;
  transition: all 0.3s ease;
  cursor: default;
}

.skill-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
  box-shadow: var(--shadow-hover);
}

.skill-icon {
  font-size: 2.5rem;
  margin-bottom: 0.75rem;
  display: block;
}

.skill-name {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.skill-level {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* ===========================
   Blog Section
   =========================== */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
}

.blog-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  transition: all 0.3s ease;
  cursor: pointer;
  display: flex;
  flex-direction: column;
}

.blog-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
  box-shadow: var(--shadow-hover);
}

.blog-card-image {
  height: 180px;
  background: linear-gradient(135deg, var(--bg-card-hover), var(--bg-secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 2.5rem;
  position: relative;
  overflow: hidden;
}

.blog-card-image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--accent-gradient);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.blog-card:hover .blog-card-image::after {
  opacity: 0.05;
}

.blog-card-body {
  padding: 1.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.blog-card-meta {
  display: flex;
  gap: 1rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

.blog-card-tag {
  color: var(--accent);
}

.blog-card-title {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  line-height: 1.4;
  color: var(--text-primary);
}

.blog-card-excerpt {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
  flex: 1;
  margin-bottom: 1rem;
}

.blog-card-readmore {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent);
  display: flex;
  align-items: center;
  gap: 0.25rem;
  transition: gap 0.3s ease;
}

.blog-card:hover .blog-card-readmore {
  gap: 0.5rem;
}

/* ===========================
   Projects Section
   =========================== */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
}

.project-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
  box-shadow: var(--shadow-hover);
}

.project-card-header {
  padding: 1.5rem 1.5rem 0;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}

.project-folder-icon {
  color: var(--accent);
  font-size: 2rem;
}

.project-links {
  display: flex;
  gap: 0.75rem;
}

.project-links a {
  color: var(--text-secondary);
  transition: color 0.3s ease;
}

.project-links a:hover { color: var(--accent); }

.project-card-body {
  padding: 1rem 1.5rem 1.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.project-card-title {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.project-card-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
  flex: 1;
  margin-bottom: 1rem;
}

.project-card-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tech-tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 0.2rem 0.6rem;
  background: rgba(100, 255, 218, 0.08);
  color: var(--accent);
  border-radius: 4px;
}

/* ===========================
   Contact Section
   =========================== */
.contact {
  background: var(--bg-secondary);
}

.contact-intro {
  text-align: center;
  color: var(--text-secondary);
  margin-bottom: 2.5rem;
  font-size: 1.05rem;
  line-height: 1.8;
}

.contact-form {
  max-width: 600px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

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

.form-group label {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.form-group input,
.form-group textarea {
  background: var(--bg-card);
  border: 1.5px solid var(--border);
  border-radius: 8px;
  padding: 0.85rem 1rem;
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  transition: all 0.3s ease;
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--accent);
  box-shadow: var(--glow);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.contact-form .btn-primary {
  grid-column: 1 / -1;
  justify-self: start;
}

.btn-loading { display: none; }

.btn-primary.loading .btn-text { display: none; }
.btn-primary.loading .btn-loading { display: inline; }

/* Toast */
.toast {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: var(--bg-card);
  border: 1px solid var(--accent);
  border-radius: 8px;
  padding: 1rem 1.5rem;
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  box-shadow: var(--shadow);
  z-index: 2000;
  animation: slideIn 0.3s ease, slideOut 0.3s ease 2.7s forwards;
}

@keyframes slideIn {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

@keyframes slideOut {
  from { transform: translateX(0); opacity: 1; }
  to { transform: translateX(100%); opacity: 0; }
}

/* ===========================
   Footer
   =========================== */
.footer {
  padding: 3rem 0;
  text-align: center;
  border-top: 1px solid var(--border-light);
}

.footer-social {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

.social-link {
  color: var(--text-muted);
  transition: all 0.3s ease;
}

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

.footer-credit {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.footer-credit p {
  margin-bottom: 0.25rem;
}

/* ===========================
   Modal
   =========================== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  z-index: 3000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  max-width: 720px;
  width: 100%;
  max-height: 85vh;
  overflow-y: auto;
  position: relative;
  animation: modalIn 0.3s ease;
}

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

.modal-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 50%;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text-secondary);
  transition: all 0.3s ease;
  z-index: 1;
}

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

.modal-content {
  padding: 2.5rem;
}

.modal-content .blog-meta {
  display: flex;
  gap: 1rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.modal-content .blog-tag {
  color: var(--accent);
}

.modal-content h2 {
  font-size: 1.8rem;
  margin-bottom: 1.5rem;
  line-height: 1.3;
}

.modal-content .blog-body {
  color: var(--text-secondary);
  line-height: 1.9;
}

.modal-content .blog-body h3 {
  color: var(--text-primary);
  margin: 1.5rem 0 0.75rem;
  font-size: 1.2rem;
}

.modal-content .blog-body p {
  margin-bottom: 1rem;
}

.modal-content .blog-body ul {
  list-style: disc;
  padding-left: 1.5rem;
  margin-bottom: 1rem;
}

.modal-content .blog-body pre {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem;
  overflow-x: auto;
  margin-bottom: 1rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.6;
}

.modal-content .blog-body code {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  background: var(--bg-secondary);
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
}

/* ===========================
   Responsive
   =========================== */
@media (max-width: 768px) {
  section { padding: 60px 0; }

  .section-title {
    font-size: 1.5rem;
    margin-bottom: 2rem;
  }

  /* Nav */
  .nav-links {
    position: fixed;
    top: 70px;
    right: 0;
    width: 250px;
    height: calc(100vh - 70px);
    background: var(--bg-nav);
    backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    transform: translateX(100%);
    transition: transform 0.3s ease;
    border-left: 1px solid var(--border);
  }

  .nav-links.active {
    transform: translateX(0);
  }

  .mobile-menu-btn { display: flex; }

  /* Hero */
  .hero-content {
    grid-template-columns: 1fr;
    gap: 2rem;
    text-align: center;
    padding-top: 2rem;
  }

  .hero-desc { max-width: 100%; }
  .hero-cta { justify-content: center; }
  .hero-visual { display: none; }

  /* About */
  .about-content {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .about-image { order: -1; }
  .about-image .image-wrapper { margin: 0 auto; }

  .about-tech-list {
    grid-template-columns: 1fr 1fr;
  }

  /* Grids */
  .blog-grid,
  .projects-grid {
    grid-template-columns: 1fr;
  }

  .skills-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  /* Contact */
  .contact-form {
    grid-template-columns: 1fr;
  }

  .modal-content { padding: 1.5rem; }
}

@media (max-width: 480px) {
  .container { padding: 0 1rem; }
  .nav-container { padding: 0 1rem; }
  .hero-content { padding: 0 1rem; }

  .hero-name { font-size: 2.2rem; }
  .hero-role { font-size: 1.1rem; }

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

  .hero-cta { flex-direction: column; }
  .hero-cta .btn { justify-content: center; }
}