/* ============================================================
   ROOT & RESET
   ============================================================ */
:root {
  --bg-primary:    #080c14;
  --bg-secondary:  #0d1220;
  --bg-card:       #111827;
  --bg-card-hover: #1a2235;

  --accent-blue:   #4f9cf9;
  --accent-purple: #a78bfa;
  --accent-teal:   #2dd4bf;
  --accent-pink:   #f472b6;

  --gradient:      linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
  --gradient-soft: linear-gradient(135deg, rgba(79,156,249,0.15), rgba(167,139,250,0.15));

  --text-primary:  #f1f5f9;
  --text-secondary:#94a3b8;
  --text-muted:    #475569;

  --border:        rgba(255,255,255,0.07);
  --border-hover:  rgba(79,156,249,0.4);

  --font-main:     'Inter', sans-serif;
  --font-head:     'Space Grotesk', sans-serif;
  --font-code:     'Fira Code', monospace;

  --radius-sm:  8px;
  --radius-md:  16px;
  --radius-lg:  24px;
  --radius-full: 9999px;

  --shadow-sm:  0 2px 8px rgba(0,0,0,0.3);
  --shadow-md:  0 8px 32px rgba(0,0,0,0.4);
  --shadow-glow:0 0 30px rgba(79,156,249,0.2);

  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --nav-height: 70px;
}

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

html { scroll-behavior: smooth; scroll-padding-top: var(--nav-height); }

body {
  font-family: var(--font-main);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a  { text-decoration: none; color: inherit; }
ul { list-style: none; }

/* ============================================================
   UTILS
   ============================================================ */
.container {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
}

.section { padding: 100px 0; }

.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-tag {
  font-family: var(--font-code);
  font-size: 0.85rem;
  color: var(--accent-blue);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  display: block;
  margin-bottom: 12px;
}

.section-title {
  font-family: var(--font-head);
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 700;
  line-height: 1.2;
}

.gradient-text {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.highlight {
  color: var(--accent-blue);
  font-weight: 600;
}

.hidden { display: none !important; }

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  font-family: var(--font-main);
}

.btn-primary {
  background: var(--gradient);
  color: #fff;
  box-shadow: 0 4px 20px rgba(79,156,249,0.3);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(79,156,249,0.45);
}

.btn-outline {
  background: transparent;
  color: var(--accent-blue);
  border: 1.5px solid var(--accent-blue);
}
.btn-outline:hover {
  background: rgba(79,156,249,0.1);
  transform: translateY(-2px);
}

.btn-ghost {
  background: rgba(255,255,255,0.06);
  color: var(--text-primary);
  border: 1.5px solid var(--border);
}
.btn-ghost:hover {
  background: rgba(255,255,255,0.1);
  border-color: var(--border-hover);
  transform: translateY(-2px);
}

.btn-sm { padding: 8px 18px; font-size: 0.85rem; }
.btn-full { width: 100%; justify-content: center; }

/* ============================================================
   NAVBAR
   ============================================================ */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-height);
  z-index: 1000;
  transition: var(--transition);
}

.navbar.scrolled {
  background: rgba(8,12,20,0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-md);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
}

.nav-logo {
  font-family: var(--font-code);
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--text-primary);
}
.logo-bracket { color: var(--accent-blue); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-link {
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 0.95rem;
  font-weight: 500;
  transition: var(--transition);
  position: relative;
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: 2px; left: 14px; right: 14px;
  height: 2px;
  background: var(--gradient);
  transform: scaleX(0);
  transition: transform var(--transition);
  border-radius: 2px;
}
.nav-link:hover { color: var(--text-primary); }
.nav-link:hover::after,
.nav-link.active::after { transform: scaleX(1); }
.nav-link.active { color: var(--text-primary); }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 24px; height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
#particleCanvas { width: 100%; height: 100%; }

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 1;
  padding-top: var(--nav-height);
}

.hero-greeting {
  font-family: var(--font-code);
  color: var(--accent-blue);
  font-size: 1rem;
  letter-spacing: 0.1em;
  margin-bottom: 12px;
}

.hero-name {
  font-family: var(--font-head);
  font-size: clamp(2.8rem, 5vw, 4.2rem);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 20px;
}

.hero-roles {
  font-size: 1.15rem;
  color: var(--text-secondary);
  margin-bottom: 24px;
  min-height: 30px;
}
.role-dynamic { color: var(--accent-purple); font-weight: 600; }
.role-cursor  { color: var(--accent-blue); animation: blink 1s infinite; }

.hero-desc {
  color: var(--text-secondary);
  font-size: 1.05rem;
  max-width: 480px;
  margin-bottom: 36px;
}

.hero-cta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 36px;
}

.hero-social {
  display: flex;
  gap: 16px;
}
.hero-social a {
  width: 42px; height: 42px;
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  font-size: 1rem;
  transition: var(--transition);
}
.hero-social a:hover {
  border-color: var(--accent-blue);
  color: var(--accent-blue);
  transform: translateY(-3px);
  box-shadow: var(--shadow-glow);
}

/* Hero Image */
.hero-image {
  position: relative;
  display: flex;
  justify-content: center;
}

.image-frame {
  width: 340px; height: 380px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 2px solid var(--border);
  background: var(--bg-card);
  position: relative;
  box-shadow: var(--shadow-md), var(--shadow-glow);
}
.image-frame img { width: 100%; height: 100%; object-fit: cover; }

.image-placeholder {
  position: absolute;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  font-size: 5rem;
  color: var(--text-muted);
  background: var(--gradient-soft);
}

.hero-badge {
  position: absolute;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  padding: 8px 16px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
  box-shadow: var(--shadow-md);
  white-space: nowrap;
}
.hero-badge i { color: var(--accent-blue); }

.badge-1 { top: 30px;  left: -30px; }
.badge-2 { bottom: 80px; left: -40px; }
.badge-3 { bottom: 30px; right: -20px; }

.scroll-down {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  color: var(--text-muted);
  font-size: 1.1rem;
  animation: bounce 2s infinite;
  z-index: 1;
}

/* ============================================================
   ABOUT
   ============================================================ */
.about { background: var(--bg-secondary); }

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 72px;
  align-items: start;
}

.about-img-container {
  width: 100%;
  aspect-ratio: 3/4;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 2px solid var(--border);
  background: var(--bg-card);
  position: relative;
}
.about-img-container img { width: 100%; height: 100%; object-fit: cover; }

.about-img-placeholder {
  position: absolute;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  font-size: 6rem;
  color: var(--text-muted);
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 16px;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px 12px;
  text-align: center;
  transition: var(--transition);
  text-decoration: none;
  display: block;
  cursor: pointer;
}
.stat-card:hover {
  border-color: var(--accent-cyan);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}

.stat-num {
  display: block;
  font-family: var(--font-head);
  font-size: 1.8rem;
  font-weight: 700;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  font-size: 0.78rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.about-text h3 {
  font-family: var(--font-head);
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 20px;
}

.about-text p {
  color: var(--text-secondary);
  margin-bottom: 16px;
  font-size: 1.02rem;
}

.about-info {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin: 28px 0;
}

.info-item {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-secondary);
  font-size: 0.95rem;
}
.info-item i { color: var(--accent-blue); width: 16px; }

/* ============================================================
   SKILLS
   ============================================================ */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.skill-category {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: var(--transition);
}
.skill-category:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-glow);
}

.skill-category h3 {
  font-family: var(--font-head);
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.skill-category h3 i { color: var(--accent-blue); }

.skill-bars { display: flex; flex-direction: column; gap: 18px; }

.skill-info {
  display: flex;
  justify-content: space-between;
  margin-bottom: 8px;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.skill-track {
  height: 6px;
  background: rgba(255,255,255,0.06);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.skill-fill {
  height: 100%;
  width: 0;
  background: var(--gradient);
  border-radius: var(--radius-full);
  transition: width 1.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.skill-tags { display: flex; flex-wrap: wrap; gap: 10px; }

.skill-tag {
  background: rgba(79,156,249,0.08);
  border: 1px solid rgba(79,156,249,0.2);
  color: var(--text-secondary);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 0.84rem;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition);
  cursor: default;
}
.skill-tag:hover {
  background: rgba(79,156,249,0.15);
  border-color: var(--accent-blue);
  color: var(--text-primary);
  transform: translateY(-2px);
}
.skill-tag i { color: var(--accent-blue); font-size: 0.8rem; }

.soft-skills { display: flex; flex-direction: column; gap: 20px; }

.soft-skill-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.soft-icon {
  width: 44px; height: 44px;
  border-radius: var(--radius-sm);
  background: var(--gradient-soft);
  border: 1px solid rgba(79,156,249,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-blue);
  font-size: 1rem;
  flex-shrink: 0;
}

.soft-skill-item h4 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.soft-skill-item p {
  font-size: 0.84rem;
  color: var(--text-muted);
}

/* ============================================================
   EXPERIENCE
   ============================================================ */
.experience { background: var(--bg-secondary); }

.timeline-tabs {
  display: flex;
  gap: 12px;
  margin-bottom: 48px;
  justify-content: center;
}

.tab-btn {
  padding: 10px 32px;
  border-radius: var(--radius-full);
  border: 1.5px solid var(--border);
  background: transparent;
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  font-family: var(--font-main);
  transition: var(--transition);
}
.tab-btn:hover { border-color: var(--accent-blue); color: var(--text-primary); }
.tab-btn.active {
  background: var(--gradient);
  border-color: transparent;
  color: #fff;
  box-shadow: 0 4px 20px rgba(79,156,249,0.3);
}

.timeline {
  position: relative;
  max-width: 760px;
  margin: 0 auto;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 20px; top: 0; bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent-blue), var(--accent-purple), transparent);
}

.timeline-item {
  display: flex;
  gap: 36px;
  margin-bottom: 36px;
  position: relative;
}

.timeline-dot {
  width: 42px; height: 42px;
  border-radius: 50%;
  background: var(--bg-primary);
  border: 2px solid var(--accent-blue);
  flex-shrink: 0;
  margin-top: 4px;
  box-shadow: 0 0 16px rgba(79,156,249,0.3);
  position: relative;
  z-index: 1;
}
.timeline-dot::after {
  content: '';
  position: absolute;
  inset: 6px;
  border-radius: 50%;
  background: var(--gradient);
}

.timeline-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 28px;
  flex: 1;
  transition: var(--transition);
}
.timeline-card:hover {
  border-color: var(--border-hover);
  transform: translateX(4px);
}

.timeline-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 12px;
}

.timeline-card h3 {
  font-family: var(--font-head);
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.timeline-company {
  font-size: 0.88rem;
  color: var(--accent-blue);
  font-weight: 500;
}

.timeline-date {
  font-family: var(--font-code);
  font-size: 0.82rem;
  color: var(--text-muted);
  white-space: nowrap;
  padding: 4px 12px;
  background: rgba(255,255,255,0.04);
  border-radius: var(--radius-full);
  border: 1px solid var(--border);
}

.timeline-card p {
  color: var(--text-secondary);
  font-size: 0.93rem;
  margin-bottom: 16px;
}

.timeline-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.timeline-tags span {
  font-size: 0.78rem;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  background: rgba(79,156,249,0.08);
  border: 1px solid rgba(79,156,249,0.2);
  color: var(--accent-blue);
}

/* ============================================================
   PROJECTS
   ============================================================ */
.filter-bar {
  display: flex;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}

.filter-btn {
  padding: 8px 20px;
  border-radius: var(--radius-full);
  border: 1.5px solid var(--border);
  background: transparent;
  color: var(--text-secondary);
  font-size: 0.88rem;
  font-weight: 500;
  cursor: pointer;
  font-family: var(--font-main);
  transition: var(--transition);
}
.filter-btn:hover { border-color: var(--accent-blue); color: var(--text-primary); }
.filter-btn.active {
  background: var(--gradient);
  border-color: transparent;
  color: #fff;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
}
.project-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-6px);
  box-shadow: var(--shadow-md), var(--shadow-glow);
}
.project-card.hide { display: none; }

.project-img {
  position: relative;
  aspect-ratio: 16/9;
  background: var(--bg-secondary);
  overflow: hidden;
}
.project-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.project-card:hover .project-img img { transform: scale(1.06); }

.project-img-placeholder {
  position: absolute;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  color: var(--text-muted);
  background: var(--gradient-soft);
}

.project-overlay {
  position: absolute;
  inset: 0;
  background: rgba(8,12,20,0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  opacity: 0;
  transition: var(--transition);
  backdrop-filter: blur(4px);
}
.project-card:hover .project-overlay { opacity: 1; }

.project-content { padding: 24px; }

.project-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}

.project-tags span {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: var(--radius-full);
}
.tag-ml  { background: rgba(167,139,250,0.15); color: var(--accent-purple); border: 1px solid rgba(167,139,250,0.3); }
.tag-web { background: rgba(79,156,249,0.15);  color: var(--accent-blue);   border: 1px solid rgba(79,156,249,0.3);  }
.tag-bi  { background: rgba(45,212,191,0.15);  color: var(--accent-teal);   border: 1px solid rgba(45,212,191,0.3);  }
.tag-nlp { background: rgba(244,114,182,0.15); color: var(--accent-pink);   border: 1px solid rgba(244,114,182,0.3); }

.project-content h3 {
  font-family: var(--font-head);
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.project-content p {
  color: var(--text-secondary);
  font-size: 0.88rem;
  margin-bottom: 16px;
}

.project-tech {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.project-tech span {
  font-family: var(--font-code);
  font-size: 0.75rem;
  color: var(--text-muted);
  background: rgba(255,255,255,0.04);
  padding: 3px 10px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border);
}

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

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 64px;
  align-items: start;
}

.contact-info h3 {
  font-family: var(--font-head);
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.contact-info > p {
  color: var(--text-secondary);
  margin-bottom: 36px;
}

.contact-cards { display: flex; flex-direction: column; gap: 16px; }

.contact-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 18px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: var(--transition);
}
.contact-card:hover {
  border-color: var(--border-hover);
  transform: translateX(4px);
  box-shadow: var(--shadow-glow);
}

.contact-icon {
  width: 44px; height: 44px;
  border-radius: var(--radius-sm);
  background: var(--gradient-soft);
  border: 1px solid rgba(79,156,249,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-blue);
  font-size: 1.1rem;
  flex-shrink: 0;
}

.contact-card h4 {
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 2px;
}
.contact-card p {
  font-size: 0.84rem;
  color: var(--text-muted);
}

.contact-form {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group label {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.form-group input,
.form-group textarea {
  background: var(--bg-secondary);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  color: var(--text-primary);
  font-family: var(--font-main);
  font-size: 0.95rem;
  transition: var(--transition);
  outline: none;
  resize: vertical;
}
.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 3px rgba(79,156,249,0.1);
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--text-muted); }

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  background: var(--bg-primary);
  border-top: 1px solid var(--border);
  padding: 40px 0 24px;
}

.footer-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.footer-content p { color: var(--text-secondary); font-size: 0.9rem; }

.footer-social { display: flex; gap: 12px; }
.footer-social a {
  width: 38px; height: 38px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 0.95rem;
  transition: var(--transition);
}
.footer-social a:hover {
  border-color: var(--accent-blue);
  color: var(--accent-blue);
}

.footer-copy {
  text-align: center;
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .skills-grid         { grid-template-columns: 1fr 1fr; }
  .projects-grid       { grid-template-columns: 1fr 1fr; }
  .hero-content        { gap: 40px; }
  .image-frame         { width: 280px; height: 320px; }
}

@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: var(--nav-height); left: 0; right: 0;
    background: rgba(8,12,20,0.97);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 24px;
    gap: 8px;
    transform: translateY(-110%);
    transition: transform var(--transition);
    border-bottom: 1px solid var(--border);
  }
  .nav-links.open { transform: translateY(0); }
  .nav-link { padding: 12px 16px; }
  .hamburger { display: flex; }

  .hero-content { grid-template-columns: 1fr; text-align: center; }
  .hero-image   { order: -1; }
  .hero-cta     { justify-content: center; }
  .hero-social  { justify-content: center; }
  .hero-desc    { margin: 0 auto 36px; }

  .about-grid    { grid-template-columns: 1fr; gap: 40px; }
  .about-info    { grid-template-columns: 1fr; }
  .skills-grid   { grid-template-columns: 1fr; }
  .projects-grid { grid-template-columns: 1fr; }
  .contact-grid  { grid-template-columns: 1fr; gap: 40px; }
  .footer-content{ flex-direction: column; text-align: center; }
}

@media (max-width: 480px) {
  .section { padding: 70px 0; }
  .hero-name { font-size: 2.4rem; }
  .image-frame { width: 240px; height: 270px; }
  .badge-1 { top: 10px; left: -10px; }
  .badge-2 { bottom: 50px; left: -10px; }
  .badge-3 { bottom: 10px; right: -10px; }
}