/* Complete Portfolio CSS - Cyber Theme with Modern Animations */
@import url('https://fonts.googleapis.com/css2?family=Space+Mono:wght@400;700&family=Orbitron:wght@400;600;700;900&display=swap');

:root {
  /* Dark Theme Colors */
  --bg-dark: #05080b;
  --bg-card: #0f1620;
  --bg-card-hover: #16202e;
  
  --primary: #00ff9d;
  --primary-dim: rgba(0, 255, 157, 0.1);
  --accent: #00b8ff;
  
  --text-main: #e2e8f0;
  --text-muted: #94a3b8;
  
  --font-sans: 'Space Mono', monospace;
  --font-display: 'Orbitron', sans-serif;
  
  --ease-out: cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* Light Theme */
[data-theme="light"] {
  --bg-dark: #f8fafc;
  --bg-card: #ffffff;
  --bg-card-hover: #f1f5f9;
  
  --primary: #00d084;
  --primary-dim: rgba(0, 208, 132, 0.1);
  --accent: #0099cc;
  
  --text-main: #1e293b;
  --text-muted: #64748b;
}

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

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

body {
  background-color: var(--bg-dark);
  color: var(--text-main);
  font-family: var(--font-sans);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
}

/* Typography */
h1, h2, h3, h4 {
  font-weight: 700;
  color: #fff;
  font-family: var(--font-display);
  letter-spacing: -0.02em;
}

[data-theme="light"] h1,
[data-theme="light"] h2,
[data-theme="light"] h3,
[data-theme="light"] h4 {
  color: #0a0f14;
}

a {
  text-decoration: none;
  color: inherit;
  transition: all 0.3s ease;
}

ul { list-style: none; }

strong {
  color: var(--primary);
  font-weight: 700;
}

/* Background Effects */
#bg-flow {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  opacity: 0.3;
}

[data-theme="light"] #bg-flow {
  opacity: 0.15;
}

.bg-grid {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: 
    linear-gradient(rgba(0, 255, 157, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 255, 157, 0.03) 1px, transparent 1px);
  background-size: 50px 50px;
  z-index: -2;
}

.bg-aurora {
  position: fixed;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at center, rgba(0, 255, 157, 0.08) 0%, transparent 60%);
  z-index: -2;
  animation: rotate 20s linear infinite;
}

[data-theme="light"] .bg-aurora {
  background: radial-gradient(circle at center, rgba(0, 208, 132, 0.04) 0%, transparent 60%);
}

@keyframes rotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* Utility Classes */
.section {
  padding: 80px 20px;
  max-width: 1200px;
  margin: 0 auto;
}

/* Header & Nav */
.site-header {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(5, 8, 11, 0.9);
  backdrop-filter: blur(15px);
  border-bottom: 1px solid rgba(0, 255, 157, 0.1);
  padding: 15px 0;
}

[data-theme="light"] .site-header {
  background: rgba(248, 250, 252, 0.9);
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 900;
  letter-spacing: 0.05em;
}

.brand-icon {
  color: var(--primary);
  font-size: 1.5rem;
}

.brand-name {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav__list {
  display: flex;
  gap: 35px;
}

.nav__list a {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-muted);
  position: relative;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

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

.nav__list a::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: width 0.3s var(--ease-out);
}

.nav__list a:hover::after {
  width: 100%;
}

.header-actions {
  display: flex;
  gap: 15px;
  align-items: center;
}

.icon-btn {
  background: none;
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--primary);
  cursor: pointer;
  font-size: 1.3rem;
  width: 40px;
  height: 40px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
}

.icon-btn:hover {
  background: var(--primary-dim);
  border-color: var(--primary);
  transform: scale(1.1);
}

.nav-toggle {
  display: none;
}

/* Mobile Nav */
.mobile-nav {
  background: var(--bg-card);
  padding: 20px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.mobile-nav__list {
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.mobile-nav__list a {
  color: var(--text-main);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 12px;
  font-weight: 700;
  font-size: 0.9rem;
  cursor: pointer;
  transition: all 0.4s var(--ease-out);
  font-family: var(--font-sans);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border: none;
}

.btn--primary {
  background: var(--primary);
  color: #000;
  border: 2px solid var(--primary);
  box-shadow: 0 0 20px rgba(0, 255, 157, 0.4);
}

.btn--primary:hover {
  background: transparent;
  color: var(--primary);
  box-shadow: 0 0 30px rgba(0, 255, 157, 0.6);
  transform: translateY(-3px);
}

.btn--outline {
  background: transparent;
  border: 2px solid var(--text-muted);
  color: var(--text-main);
}

.btn--outline:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-dim);
  transform: translateY(-3px);
}

.btn--ghost {
  background: transparent;
  border: none;
  color: var(--text-muted);
  padding: 10px 18px;
}

.btn--ghost:hover {
  color: var(--primary);
  background: var(--primary-dim);
  transform: scale(1.05);
}

.btn--full {
  width: 100%;
  justify-content: center;
}

/* HERO SECTION */
.hero {
  padding-top: 140px;
  min-height: 100vh;
  display: flex;
  align-items: center;
}

.hero__layout {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero__title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  line-height: 1.1;
  margin-bottom: 20px;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: -0.02em;
  word-break: break-word;
}

.accent-text {
  color: var(--primary);
  font-family: var(--font-sans);
  font-size: 0.45em;
  vertical-align: super;
  margin-left: 10px;
  display: inline-block;
  animation: pulse 2s ease-in-out infinite;
}

@media (max-width: 640px) {
  .accent-text {
    display: block;
    margin-left: 0;
    margin-top: 15px;
    font-size: 1rem;
    vertical-align: baseline;
  }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}

.hero__roles {
  font-family: var(--font-sans);
  font-size: 1.3rem;
  color: var(--accent);
  margin-bottom: 25px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.role-prefix {
  color: var(--primary);
  animation: spin 3s linear infinite;
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.caret {
  display: inline-block;
  width: 8px;
  height: 22px;
  background: var(--primary);
  animation: blink 1s infinite;
  margin-left: 2px;
}

@keyframes blink {
  0%, 49% { opacity: 1; }
  50%, 100% { opacity: 0; }
}

.hero__tagline {
  color: var(--text-muted);
  font-size: 1.05rem;
  line-height: 1.7;
  margin-bottom: 35px;
  max-width: 550px;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 15px;
  margin-bottom: 40px;
}

.hero__meta {
  display: flex;
  gap: 25px;
  font-size: 0.85rem;
  color: var(--text-muted);
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 25px;
  flex-wrap: wrap;
}

.hero__meta i {
  color: var(--primary);
  margin-right: 6px;
}

/* Hero Code Block */
.hero__code-block {
  background: #0d1117;
  border: 2px solid #30363d;
  border-radius: 12px;
  padding: 0;
  overflow: hidden;
  box-shadow: 0 25px 60px rgba(0,0,0,0.6);
  font-family: var(--font-sans);
  font-size: 0.85rem;
  position: relative;
  transition: all 0.3s ease;
}

.hero__code-block:hover {
  transform: translateY(-8px);
  border-color: var(--primary);
  box-shadow: 0 30px 70px rgba(0, 255, 157, 0.2);
}

[data-theme="light"] .hero__code-block {
  background: #f6f8fa;
  border: 2px solid #d0d7de;
  box-shadow: 0 25px 60px rgba(0,0,0,0.1);
}

.code-bar {
  background: #161b22;
  padding: 12px 15px;
  display: flex;
  align-items: center;
  gap: 8px;
  border-bottom: 1px solid #30363d;
}

[data-theme="light"] .code-bar {
  background: #eaeef2;
  border-bottom: 1px solid #d0d7de;
}

.dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.red { background: #ff5f56; }
.yellow { background: #ffbd2e; }
.green { background: #27c93f; }

.fname {
  margin-left: auto;
  color: #8b949e;
  font-size: 0.8rem;
  font-weight: 700;
}

pre {
  padding: 25px;
  overflow-x: auto;
  color: #c9d1d9;
  line-height: 1.6;
}

[data-theme="light"] pre {
  color: #24292f;
}

code {
  font-family: var(--font-sans);
}

.key { color: #79c0ff; font-weight: 700; }
.string { color: #a5d6ff; }
.c { color: #8b949e; font-style: italic; }

[data-theme="light"] .key { color: #0550ae; }
[data-theme="light"] .string { color: #0a3069; }
[data-theme="light"] .c { color: #6e7781; }

/* ABOUT SECTION */
.section__header {
  margin-bottom: 60px;
  text-align: center;
}

.section__title {
  font-size: clamp(2rem, 4vw, 2.8rem);
  display: inline-block;
  position: relative;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.divider {
  height: 3px;
  width: 100px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  margin: 15px auto 0;
  border-radius: 2px;
}

.about__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 60px;
  align-items: start;
}

.about__content .lead {
  font-size: 1.15rem;
  margin-bottom: 20px;
  line-height: 1.8;
}

.about__content p {
  margin-bottom: 20px;
  color: var(--text-muted);
  line-height: 1.8;
}

.stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-top: 40px;
}

.stats li {
  background: var(--bg-card);
  padding: 25px;
  border-radius: 12px;
  border: 2px solid rgba(0, 255, 157, 0.1);
  text-align: center;
  transition: all 0.3s ease;
}

.stats li:hover {
  transform: translateY(-5px);
  border-color: var(--primary);
  box-shadow: 0 10px 30px rgba(0, 255, 157, 0.2);
}

[data-theme="light"] .stats li {
  border: 2px solid rgba(0,0,0,0.1);
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.stats .num {
  display: block;
  font-size: 2.5rem;
  font-weight: 900;
  color: var(--primary);
  font-family: var(--font-display);
  margin-bottom: 8px;
}

.stats .label {
  font-size: 0.85rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.profile-card {
  position: relative;
  text-align: center;
  background: var(--bg-card);
  padding: 35px;
  border-radius: 16px;
  border: 2px solid rgba(0, 255, 157, 0.1);
  transition: all 0.4s var(--ease-out);
}

.profile-card:hover {
  transform: translateY(-10px) scale(1.02);
  border-color: var(--primary);
  box-shadow: 0 20px 50px rgba(0, 255, 157, 0.25);
}

.profile-card img {
  width: 220px;
  height: 220px;
  object-fit: cover;
  border-radius: 50%;
  border: 4px solid var(--primary);
  margin-bottom: 25px;
  box-shadow: 0 0 30px rgba(0, 255, 157, 0.4);
  transition: all 0.3s ease;
}

.profile-card:hover img {
  transform: scale(1.05);
  box-shadow: 0 0 40px rgba(0, 255, 157, 0.6);
}

.profile-card .title {
  display: block;
  font-size: 1.4rem;
  font-weight: 900;
  color: #fff;
  font-family: var(--font-display);
  margin-bottom: 5px;
}

.profile-card .sub {
  display: block;
  font-size: 0.9rem;
  color: var(--primary);
  font-family: var(--font-sans);
  margin-bottom: 20px;
}

.profile-badges {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-top: 20px;
  flex-wrap: wrap;
}

.badge {
  font-size: 0.75rem;
  padding: 6px 12px;
  background: rgba(0, 255, 157, 0.1);
  border-radius: 20px;
  color: var(--primary);
  border: 1px solid var(--primary);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* STACK SECTION */
.stack__groups {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
}

.stack-group {
  background: var(--bg-card);
  padding: 35px;
  border-radius: 16px;
  border: 2px solid rgba(0, 255, 157, 0.1);
  transition: all 0.3s ease;
}

.stack-group:hover {
  transform: translateY(-8px);
  border-color: var(--primary);
  box-shadow: 0 15px 40px rgba(0, 255, 157, 0.15);
}

.stack-group h3 {
  margin-bottom: 20px;
  font-size: 1.2rem;
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 30px;
}

.tag {
  font-size: 0.75rem;
  background: rgba(0, 184, 255, 0.15);
  color: var(--accent);
  padding: 6px 14px;
  border-radius: 6px;
  font-family: var(--font-sans);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border: 1px solid rgba(0, 184, 255, 0.3);
}

.bars li {
  margin-bottom: 18px;
}

.bars span {
  display: block;
  margin-bottom: 8px;
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.bar {
  height: 8px;
  background: rgba(255,255,255,0.1);
  border-radius: 4px;
  overflow: hidden;
}

.bar b {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  width: 0;
  transition: width 1.5s var(--ease-out);
  box-shadow: 0 0 15px var(--primary);
  border-radius: 4px;
}

/* PROJECTS SECTION */
.project-filters {
  display: flex;
  gap: 15px;
  margin-bottom: 50px;
  flex-wrap: wrap;
  justify-content: center;
}

.filter-btn {
  background: none;
  border: 2px solid var(--text-muted);
  color: var(--text-muted);
  padding: 10px 24px;
  border-radius: 25px;
  cursor: pointer;
  transition: all 0.3s var(--ease-out);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: 0.8rem;
}

.filter-btn.active,
.filter-btn:hover {
  background: var(--primary);
  color: #000;
  border-color: var(--primary);
  transform: scale(1.08);
  box-shadow: 0 5px 20px rgba(0, 255, 157, 0.3);
}

.projects__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 35px;
  margin-bottom: 50px;
}

.project-card {
  background: var(--bg-card);
  border-radius: 16px;
  overflow: hidden;
  border: 2px solid rgba(0, 255, 157, 0.1);
  transition: all 0.4s var(--ease-out);
  display: flex;
  flex-direction: column;
  position: relative;
}

.project-card--featured::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
}

.featured-badge {
  position: absolute;
  top: 15px;
  right: 15px;
  background: var(--primary);
  color: #000;
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 0.7rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  z-index: 10;
}

.project-card:hover {
  transform: translateY(-12px) scale(1.02);
  border-color: var(--primary);
  box-shadow: 0 25px 50px rgba(0, 255, 157, 0.2);
}

.project-card__head {
  padding: 25px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.project-icon {
  font-size: 1.8rem;
  color: var(--primary);
}

.project-title {
  font-size: 1.15rem;
  margin: 0;
}

.project-desc {
  padding: 0 25px;
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.7;
  flex-grow: 1;
  margin-bottom: 20px;
}

.mini-tags {
  padding: 0 25px 20px;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.mini-tags li {
  font-size: 0.7rem;
  color: var(--accent);
  font-family: var(--font-sans);
  background: rgba(0, 184, 255, 0.1);
  padding: 4px 10px;
  border-radius: 4px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.project-img {
  height: 200px;
  overflow: hidden;
  position: relative;
  margin: 0 25px 20px;
  border-radius: 8px;
}

.project-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease-out);
}

.project-card:hover .project-img img {
  transform: scale(1.15);
}

.project-links {
  padding: 20px 25px;
  display: flex;
  justify-content: space-between;
  border-top: 1px solid rgba(255,255,255,0.05);
  gap: 10px;
}

.plink {
  color: var(--text-main);
  font-size: 0.85rem;
  font-weight: 700;
  background: none;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all 0.3s ease;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.plink:hover {
  color: var(--primary);
  transform: translateX(3px);
}

.projects__more {
  margin-top: 50px;
  text-align: center;
}

/* CONTACT SECTION */
.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 60px;
}

.info-block {
  margin-bottom: 35px;
}

.info-block__title {
  font-size: 1.1rem;
  color: var(--primary);
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 10px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.info-list li {
  margin-bottom: 12px;
  color: var(--text-muted);
  font-size: 0.95rem;
  display: flex;
  gap: 10px;
}

.info-list li span:first-child {
  color: var(--text-main);
  font-weight: 700;
  min-width: 100px;
}

.social {
  display: flex;
  gap: 20px;
  margin-top: 30px;
}

.soc {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  font-size: 0.8rem;
  transition: all 0.3s ease;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.soc i {
  font-size: 1.8rem;
  color: var(--primary);
  transition: all 0.3s ease;
}

.soc:hover {
  color: var(--primary);
  transform: translateY(-5px);
}

.soc:hover i {
  transform: scale(1.2);
}

.contact__form {
  background: var(--bg-card);
  padding: 40px;
  border-radius: 16px;
  border: 2px solid rgba(0, 255, 157, 0.1);
}

.form-field {
  margin-bottom: 25px;
}

.form-field label {
  display: block;
  margin-bottom: 10px;
  font-size: 0.85rem;
  color: var(--text-main);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

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

.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  background: var(--bg-dark);
  border: 2px solid rgba(255,255,255,0.1);
  padding: 14px;
  border-radius: 10px;
  color: var(--text-main);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  transition: all 0.3s ease;
}

[data-theme="light"] .form-field input,
[data-theme="light"] .form-field select,
[data-theme="light"] .form-field textarea {
  background: #ffffff;
  border: 2px solid #d0d7de;
  color: #24292f;
}

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-dim);
}

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

/* FOOTER */
.site-footer {
  border-top: 2px solid rgba(0, 255, 157, 0.1);
  padding: 60px 0;
  margin-top: 100px;
  text-align: center;
}

.footer-brand {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 900;
  margin-bottom: 15px;
}

.footer-content {
  margin-bottom: 25px;
}

.footer-content p {
  color: var(--text-muted);
  margin: 8px 0;
}

.foot-small {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 30px;
  flex-wrap: wrap;
}

.footer-links a {
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer-links a:hover {
  color: var(--primary);
}

/* Animation Classes */
.reveal {
  opacity: 0;
  transform: translateY(50px);
  transition: all 1s var(--ease-out);
}

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

/* Responsive */
@media (max-width: 968px) {
  .hero__layout,
  .about__grid,
  .contact__grid {
    grid-template-columns: 1fr;
    gap: 50px;
  }
  
  .hero__title {
    font-size: 2.5rem;
  }
  
  .nav {
    display: none;
  }
  
  .nav-toggle {
    display: flex;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
  }
  
  .nav-toggle__line {
    width: 25px;
    height: 3px;
    background: var(--primary);
    border-radius: 2px;
    transition: all 0.3s ease;
  }
  
  .mobile-nav {
    position: fixed;
    top: 70px;
    left: 0;
    width: 100%;
    background: var(--bg-card);
    border-bottom: 2px solid var(--primary);
    z-index: 999;
  }
  
  .mobile-nav[hidden] {
    display: none;
  }
  
  .section {
    padding: 60px 20px;
  }
  
  .stats {
    grid-template-columns: 1fr;
  }
  
  .stack__groups {
    grid-template-columns: 1fr;
  }
  
  .projects__grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .hero__title {
    font-size: 1.8rem;
  }
  
  .hero__actions {
    flex-direction: column;
  }
  
  .btn {
    width: 100%;
    justify-content: center;
  }
  
  .hero__meta {
    flex-direction: column;
    gap: 15px;
  }
  
  .project-filters {
    flex-direction: column;
  }
  
  .filter-btn {
    width: 100%;
  }
  
  .social {
    justify-content: center;
  }
  
  .footer-links {
    flex-direction: column;
    gap: 15px;
  }
}