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

:root {
  --bg-primary: #050b18;
  --bg-secondary: #080f20;
  --bg-card: #0c1628;
  --bg-card-hover: #111e38;
  --accent-blue: #00a8ff;
  --accent-neon: #00ffe5;
  --accent-glow: rgba(0, 168, 255, 0.15);
  --accent-neon-glow: rgba(0, 255, 229, 0.12);
  --text-primary: #e8f0fe;
  --text-secondary: #7a90b5;
  --text-muted: #3d5275;
  --border: rgba(0, 168, 255, 0.12);
  --border-hover: rgba(0, 168, 255, 0.35);
  --gold: #ffc947;
  --font-display: 'Syne', sans-serif;
  --font-mono: 'Space Mono', monospace;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --radius: 12px;
  --radius-lg: 20px;
}

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  font-family: var(--font-display);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

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

/* ===========================
   SCROLLBAR
=========================== */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--accent-blue); border-radius: 3px; }

/* ===========================
   UTILITIES
=========================== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.section { padding: 6rem 0; }

.section-label {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
}

.label-num {
  font-family: var(--font-mono);
  color: var(--accent-neon);
  font-size: 0.85rem;
  letter-spacing: 2px;
}

.label-line {
  width: 50px;
  height: 1px;
  background: var(--accent-blue);
  opacity: 0.4;
}

.label-text {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 3px;
  color: var(--text-secondary);
}

.section-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2rem, 4vw, 3rem);
  color: var(--text-primary);
  line-height: 1.15;
  margin-bottom: 1rem;
}

.section-title.centered { text-align: center; }

.section-sub {
  text-align: center;
  color: var(--text-secondary);
  font-size: 1rem;
  margin-bottom: 3rem;
  font-family: var(--font-mono);
}

/* ===========================
   BUTTONS
=========================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.85rem 2rem;
  border-radius: 6px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.5px;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 50%, rgba(255,255,255,0.05) 100%);
  opacity: 0;
  transition: opacity 0.3s;
}

.btn:hover::before { opacity: 1; }

.btn-primary {
  background: linear-gradient(135deg, var(--accent-blue), #0077cc);
  color: #fff;
  box-shadow: 0 4px 20px rgba(0, 168, 255, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0, 168, 255, 0.5);
}

.btn-outline {
  background: transparent;
  color: var(--accent-blue);
  border: 1px solid var(--accent-blue);
}

.btn-outline:hover {
  background: var(--accent-glow);
  transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(0, 168, 255, 0.2);
}

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

/* ===========================
   FADE IN ANIMATIONS
=========================== */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===========================
   HEADER
=========================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 1.2rem 0;
  transition: var(--transition);
  border-bottom: 1px solid transparent;
}

.header.scrolled {
  background: rgba(5, 11, 24, 0.92);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 0.8rem 0;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -1px;
}

.logo-dot { color: var(--accent-neon); }

.nav-menu {
  display: flex;
  align-items: center;
  gap: 2.5rem;
}

.nav-link {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-secondary);
  letter-spacing: 1px;
  text-transform: uppercase;
  transition: var(--transition);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--accent-neon);
  transition: width 0.3s ease;
}

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

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

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
  z-index: 1100;
}

.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;
  padding: 8rem 0 4rem;
}

.hero-grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 168, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 168, 255, 0.04) 1px, transparent 1px);
  background-size: 50px 50px;
  mask-image: radial-gradient(ellipse at 60% 50%, black 40%, transparent 80%);
}

.floating-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
  animation: orbFloat 8s ease-in-out infinite;
}

.orb-1 {
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(0, 168, 255, 0.12), transparent 70%);
  top: -100px; right: -100px;
  animation-delay: 0s;
}

.orb-2 {
  width: 350px; height: 350px;
  background: radial-gradient(circle, rgba(0, 255, 229, 0.08), transparent 70%);
  bottom: -50px; left: 10%;
  animation-delay: 3s;
}

.orb-3 {
  width: 250px; height: 250px;
  background: radial-gradient(circle, rgba(0, 168, 255, 0.1), transparent 70%);
  top: 40%; left: 40%;
  animation-delay: 6s;
}

@keyframes orbFloat {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-30px) scale(1.05); }
}

.hero-particles {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.particle {
  position: absolute;
  width: 2px;
  height: 2px;
  background: var(--accent-neon);
  border-radius: 50%;
  animation: particleFade var(--dur, 4s) ease-in-out infinite;
  animation-delay: var(--delay, 0s);
  opacity: 0;
}

@keyframes particleFade {
  0%, 100% { opacity: 0; transform: translateY(0); }
  50% { opacity: 0.6; transform: translateY(-20px); }
}

.hero-content { position: relative; z-index: 2; }

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(0, 255, 229, 0.07);
  border: 1px solid rgba(0, 255, 229, 0.2);
  border-radius: 50px;
  padding: 0.4rem 1rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-neon);
  letter-spacing: 1px;
  margin-bottom: 1.5rem;
  animation: fadeSlideDown 0.8s ease forwards;
}

.badge-dot {
  width: 7px; height: 7px;
  background: var(--accent-neon);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--accent-neon);
  animation: pulse 2s ease infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

.hero-name {
  font-size: clamp(3.5rem, 9vw, 7rem);
  font-weight: 800;
  line-height: 0.95;
  letter-spacing: -3px;
  margin-bottom: 1.2rem;
  animation: fadeSlideUp 0.8s ease 0.2s forwards;
  opacity: 0;
}

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

.hero-role {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  font-family: var(--font-mono);
  font-size: clamp(1rem, 2vw, 1.3rem);
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  animation: fadeSlideUp 0.8s ease 0.4s forwards;
  opacity: 0;
}

.role-prefix, .role-suffix { color: var(--accent-neon); opacity: 0.6; }
.typed-text { color: var(--accent-blue); }
.cursor-blink {
  color: var(--accent-neon);
  animation: blink 1s step-end infinite;
}

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

.hero-desc {
  max-width: 580px;
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.8;
  margin-bottom: 2.5rem;
  animation: fadeSlideUp 0.8s ease 0.6s forwards;
  opacity: 0;
}

.hero-cta {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 3rem;
  animation: fadeSlideUp 0.8s ease 0.8s forwards;
  opacity: 0;
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 2rem;
  animation: fadeSlideUp 0.8s ease 1s forwards;
  opacity: 0;
}

.stat { text-align: left; }
.stat-num {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1;
}

.stat-plus { color: var(--accent-neon); }
.stat-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.stat-divider {
  width: 1px;
  height: 40px;
  background: var(--border);
}

.scroll-indicator {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  animation: fadeIn 1s ease 1.5s forwards;
  opacity: 0;
}

.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--accent-blue), transparent);
  animation: scrollDrop 2s ease-in-out infinite;
}

@keyframes scrollDrop {
  0% { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  51% { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

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

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

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

/* ===========================
   ABOUT
=========================== */
/* Profile Image Style */
.profile-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 12px;
}
.about { background: var(--bg-secondary); }

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 5rem;
  align-items: start;
  margin-top: 2rem;
}

.about-photo-col {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
}

.photo-frame {
  position: relative;
  width: 200px;
  height: 240px;
}

.photo-placeholder {
  width: 100%;
  height: 100%;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  color: var(--text-muted);
  font-size: 0.85rem;
  font-family: var(--font-mono);
  letter-spacing: 1px;
}

.photo-placeholder i {
  font-size: 4rem;
  color: var(--text-muted);
  opacity: 0.5;
}

.photo-border-accent {
  position: absolute;
  top: 12px;
  left: 12px;
  right: -12px;
  bottom: -12px;
  border: 1px solid var(--accent-blue);
  border-radius: var(--radius-lg);
  opacity: 0.2;
  z-index: -1;
}

.photo-corner {
  position: absolute;
  width: 20px;
  height: 20px;
  border-color: var(--accent-neon);
  border-style: solid;
}

.photo-corner.tl { top: -1px; left: -1px; border-width: 2px 0 0 2px; border-radius: 4px 0 0 0; }
.photo-corner.tr { top: -1px; right: -1px; border-width: 2px 2px 0 0; border-radius: 0 4px 0 0; }
.photo-corner.bl { bottom: -1px; left: -1px; border-width: 0 0 2px 2px; border-radius: 0 0 0 4px; }
.photo-corner.br { bottom: -1px; right: -1px; border-width: 0 2px 2px 0; border-radius: 0 0 4px 0; }

.about-social-strip {
  display: flex;
  gap: 0.8rem;
}

.social-icon-btn {
  width: 42px; height: 42px;
  border-radius: 8px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  font-size: 0.95rem;
  transition: var(--transition);
}

.social-icon-btn:hover {
  background: var(--accent-glow);
  border-color: var(--accent-blue);
  color: var(--accent-blue);
  transform: translateY(-3px);
}

.about-text-col { padding-top: 0.5rem; }

.about-text-col .section-title {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  margin-bottom: 1.5rem;
}

.about-para {
  color: var(--text-secondary);
  line-height: 1.9;
  margin-bottom: 1.2rem;
  font-size: 0.95rem;
}

.about-info-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.8rem;
  margin-top: 2rem;
}

.info-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--text-secondary);
  font-size: 0.85rem;
  font-family: var(--font-mono);
}

.info-item i {
  color: var(--accent-blue);
  font-size: 0.8rem;
  width: 16px;
}

/* ===========================
   SKILLS
=========================== */
.skills { background: var(--bg-primary); }

.skills-categories {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 1.5rem;
  margin-top: 1rem;
}

.skill-category {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.8rem;
  transition: var(--transition);
}

.skill-category:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
  transform: translateY(-4px);
  box-shadow: 0 10px 40px rgba(0, 168, 255, 0.08);
}

.cat-header {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  margin-bottom: 1.2rem;
}

.cat-header i {
  color: var(--accent-blue);
  font-size: 1rem;
}

.cat-header h3 {
  font-size: 0.9rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--text-primary);
  font-family: var(--font-mono);
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.skill-tag {
  padding: 0.35rem 0.85rem;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.5px;
  border: 1px solid;
  transition: var(--transition);
  cursor: default;
}

.skill-tag:hover { transform: translateY(-2px); }

.skill-tag.primary { background: rgba(0, 168, 255, 0.08); border-color: rgba(0, 168, 255, 0.25); color: var(--accent-blue); }
.skill-tag.primary:hover { background: rgba(0, 168, 255, 0.18); }
.skill-tag.spring { background: rgba(0, 255, 229, 0.06); border-color: rgba(0, 255, 229, 0.2); color: var(--accent-neon); }
.skill-tag.spring:hover { background: rgba(0, 255, 229, 0.15); }
.skill-tag.db { background: rgba(255, 201, 71, 0.06); border-color: rgba(255, 201, 71, 0.2); color: var(--gold); }
.skill-tag.db:hover { background: rgba(255, 201, 71, 0.15); }
.skill-tag.cloud { background: rgba(138, 43, 226, 0.08); border-color: rgba(138, 43, 226, 0.25); color: #a855f7; }
.skill-tag.cloud:hover { background: rgba(138, 43, 226, 0.15); }
.skill-tag.arch { background: rgba(236, 72, 153, 0.07); border-color: rgba(236, 72, 153, 0.22); color: #f472b6; }
.skill-tag.arch:hover { background: rgba(236, 72, 153, 0.15); }
.skill-tag.tools { background: rgba(249, 115, 22, 0.07); border-color: rgba(249, 115, 22, 0.22); color: #fb923c; }
.skill-tag.tools:hover { background: rgba(249, 115, 22, 0.15); }

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

.timeline {
  position: relative;
  margin-top: 3rem;
  padding-left: 3rem;
}

.timeline-line {
  position: absolute;
  left: 18px;
  top: 0;
  bottom: 0;
  width: 1px;
  background: linear-gradient(to bottom, var(--accent-blue), transparent);
  opacity: 0.3;
}

.timeline-item {
  position: relative;
  margin-bottom: 2rem;
}

.timeline-dot {
  position: absolute;
  left: -3rem;
  top: 1.5rem;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 1px solid var(--accent-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-blue);
  font-size: 0.8rem;
  box-shadow: 0 0 20px rgba(0, 168, 255, 0.2);
}

.timeline-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem 2.5rem;
  transition: var(--transition);
}

.timeline-card:hover {
  border-color: var(--border-hover);
  box-shadow: 0 8px 40px rgba(0, 168, 255, 0.08);
}

.exp-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.exp-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.4rem;
}

.exp-company {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--accent-blue);
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

.exp-duration {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(0, 168, 255, 0.07);
  border: 1px solid rgba(0, 168, 255, 0.15);
  padding: 0.4rem 0.9rem;
  border-radius: 50px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-blue);
  white-space: nowrap;
}

.exp-bullets { margin-bottom: 1.5rem; }

.exp-bullets li {
  display: flex;
  align-items: flex-start;
  gap: 0.8rem;
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.7;
  margin-bottom: 0.7rem;
}

.bullet-icon {
  color: var(--accent-neon);
  margin-top: 0.2rem;
  flex-shrink: 0;
  font-size: 0.75rem;
}

.exp-tags {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.exp-tags span {
  background: rgba(0, 168, 255, 0.06);
  border: 1px solid rgba(0, 168, 255, 0.15);
  color: var(--accent-blue);
  padding: 0.25rem 0.7rem;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
}

/* ===========================
   PROJECTS
=========================== */
.projects { background: var(--bg-primary); }

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 1.5rem;
  margin-top: 1rem;
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
  position: relative;
}

.project-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-blue), var(--accent-neon));
  opacity: 0;
  transition: opacity 0.3s;
}

.project-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-6px);
  box-shadow: 0 20px 60px rgba(0, 168, 255, 0.1);
}

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

.project-card-inner { padding: 2rem; }

.project-num {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  letter-spacing: 2px;
  margin-bottom: 1rem;
}

.project-icon-wrap {
  width: 50px; height: 50px;
  border-radius: 10px;
  background: rgba(0, 168, 255, 0.1);
  border: 1px solid rgba(0, 168, 255, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-blue);
  font-size: 1.2rem;
  margin-bottom: 1.2rem;
  transition: var(--transition);
}

.project-card:hover .project-icon-wrap {
  background: rgba(0, 168, 255, 0.2);
  transform: rotate(5deg);
}

.project-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 1rem;
  line-height: 1.4;
}

.project-tech-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 1.2rem;
}

.project-tech-row span {
  background: rgba(0, 255, 229, 0.06);
  border: 1px solid rgba(0, 255, 229, 0.15);
  color: var(--accent-neon);
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
}

.project-bullets {
  margin-bottom: 1.5rem;
}

.project-bullets li {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  color: var(--text-secondary);
  font-size: 0.85rem;
  line-height: 1.7;
  margin-bottom: 0.6rem;
}

.project-bullets li i {
  color: var(--accent-neon);
  font-size: 0.65rem;
  margin-top: 0.35rem;
  flex-shrink: 0;
}

.project-footer {
  border-top: 1px solid var(--border);
  padding-top: 1rem;
}

.project-highlight {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--accent-blue);
  font-family: var(--font-mono);
  font-size: 0.78rem;
}

.project-highlight i { color: var(--accent-neon); }

/* ===========================
   CERTIFICATIONS
=========================== */
.certifications { background: var(--bg-secondary); }

.certs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.2rem;
  margin-top: 2rem;
}

.cert-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  display: flex;
  align-items: center;
  gap: 1.2rem;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.cert-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent, rgba(0, 168, 255, 0.03));
  opacity: 0;
  transition: opacity 0.3s;
}

.cert-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(0, 168, 255, 0.07);
}

.cert-card:hover::after { opacity: 1; }

.cert-card.achievement { border-color: rgba(255, 201, 71, 0.2); }
.cert-card.achievement:hover { border-color: rgba(255, 201, 71, 0.4); box-shadow: 0 10px 30px rgba(255, 201, 71, 0.06); }

.cert-icon {
  width: 48px; height: 48px;
  border-radius: 10px;
  background: rgba(0, 168, 255, 0.1);
  border: 1px solid rgba(0, 168, 255, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-blue);
  font-size: 1.1rem;
  flex-shrink: 0;
}

.cert-card.achievement .cert-icon {
  background: rgba(255, 201, 71, 0.08);
  border-color: rgba(255, 201, 71, 0.2);
  color: var(--gold);
}

.cert-info {
  flex: 1;
}

.cert-info h4 {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.2rem;
  line-height: 1.3;
}

.cert-issuer {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
}

.cert-year {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--accent-blue);
  margin-top: 0.15rem;
}

.cert-card.achievement .cert-year { color: var(--gold); }

.cert-badge {
  color: var(--text-muted);
  font-size: 1rem;
  opacity: 0.3;
}

.cert-badge.gold {
  color: var(--gold);
  opacity: 0.8;
}

/* ===========================
   CODING PROFILES
=========================== */
.coding-profiles { background: var(--bg-primary); }

.profiles-row {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.2rem;
  margin-top: 2rem;
}

.profile-card {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem 1.8rem;
  transition: var(--transition);
  cursor: pointer;
}

.profile-card:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(0, 168, 255, 0.08);
}

.profile-card[data-profile="github"]:hover { border-color: rgba(255, 255, 255, 0.2); }
.profile-card[data-profile="leetcode"]:hover { border-color: rgba(255, 161, 22, 0.3); }

.profile-icon {
  width: 50px; height: 50px;
  border-radius: 12px;
  background: rgba(0, 168, 255, 0.1);
  border: 1px solid rgba(0, 168, 255, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-blue);
  font-size: 1.2rem;
  flex-shrink: 0;
  transition: var(--transition);
}

.profile-card:hover .profile-icon {
  background: rgba(0, 168, 255, 0.2);
  transform: scale(1.1);
}

.profile-info { flex: 1; }
.profile-info h4 {
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--text-primary);
  margin-bottom: 0.15rem;
}

.profile-info span {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
}

.profile-arrow {
  color: var(--text-muted);
  font-size: 0.8rem;
  transition: var(--transition);
}

.profile-card:hover .profile-arrow {
  color: var(--accent-blue);
  transform: translateX(4px);
}

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

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 4rem;
  margin-top: 2rem;
}

.contact-info h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.8rem;
  color: var(--text-primary);
}

.contact-info > p {
  color: var(--text-secondary);
  line-height: 1.8;
  font-size: 0.9rem;
  margin-bottom: 2rem;
}

.contact-items { margin-bottom: 2rem; }

.contact-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.9rem 0;
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
  color: inherit;
}

.contact-item:last-child { border-bottom: none; }

.contact-item:hover { padding-left: 0.3rem; }

.contact-icon {
  width: 38px; height: 38px;
  border-radius: 8px;
  background: rgba(0, 168, 255, 0.08);
  border: 1px solid rgba(0, 168, 255, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-blue);
  font-size: 0.85rem;
  flex-shrink: 0;
}

.ci-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.ci-value {
  display: block;
  color: var(--text-primary);
  font-size: 0.88rem;
  font-family: var(--font-mono);
}

.contact-socials {
  display: flex;
  gap: 0.8rem;
}

.social-link {
  width: 42px; height: 42px;
  border-radius: 8px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  font-size: 0.9rem;
  transition: var(--transition);
}

.social-link:hover {
  background: rgba(0, 168, 255, 0.1);
  border-color: var(--accent-blue);
  color: var(--accent-blue);
  transform: translateY(-3px);
}

/* FORM */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

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

.form-group label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--text-secondary);
}

.form-group input,
.form-group textarea {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.85rem 1.1rem;
  color: var(--text-primary);
  font-family: var(--font-display);
  font-size: 0.9rem;
  transition: var(--transition);
  outline: none;
  resize: vertical;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-muted);
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 3px rgba(0, 168, 255, 0.08);
}

/* ===========================
   FOOTER
=========================== */
.footer {
  background: var(--bg-primary);
  border-top: 1px solid var(--border);
  padding: 2rem 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-logo {
  font-family: var(--font-mono);
  font-size: 1.2rem;
  font-weight: 700;
}

.footer-copy {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
}

.footer-socials {
  display: flex;
  gap: 0.8rem;
}

.footer-socials a {
  color: var(--text-muted);
  font-size: 0.9rem;
  transition: var(--transition);
}

.footer-socials a:hover {
  color: var(--accent-blue);
  transform: translateY(-2px);
}

/* ===========================
   BACK TO TOP
=========================== */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 44px; height: 44px;
  border-radius: 10px;
  background: var(--accent-blue);
  color: white;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  z-index: 999;
  box-shadow: 0 4px 20px rgba(0, 168, 255, 0.4);
}

.back-to-top.show {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(0, 168, 255, 0.6);
}

/* ===========================
   RESPONSIVE
=========================== */
@media (max-width: 900px) {
  .about-grid { grid-template-columns: 1fr; gap: 3rem; }
  .about-photo-col { order: -1; }
  .contact-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .projects-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: min(300px, 80vw);
    height: 100vh;
    background: rgba(8, 15, 32, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    gap: 1.8rem;
    padding: 4rem 2rem;
    border-left: 1px solid var(--border);
    transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1050;
  }

  .nav-menu.open { right: 0; }

  .nav-link {
    font-size: 1rem;
    padding: 0.3rem 0;
  }

  .hamburger { display: flex; }

  .hero-stats { gap: 1.2rem; }

  .skills-categories { grid-template-columns: 1fr; }

  .timeline { padding-left: 2rem; }
  .timeline-dot { left: -2rem; width: 32px; height: 32px; }
  .timeline-card { padding: 1.5rem; }

  .exp-header { flex-direction: column; gap: 0.5rem; }

  .section { padding: 4rem 0; }

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

  .certs-grid { grid-template-columns: 1fr; }
  .profiles-row { grid-template-columns: 1fr; }

  .footer-inner { flex-direction: column; text-align: center; }
}

@media (max-width: 480px) {
  .hero-cta { flex-direction: column; }
  .btn { width: 100%; justify-content: center; }
  .hero-stats { flex-wrap: wrap; gap: 1rem; }
  .stat-divider { display: none; }
  .photo-frame { width: 220px; height: 270px; }
}