/* ===================================
   PORTFOLIO — Yoga Saputra
   Design System & Global Styles
   =================================== */

/* Google Fonts are loaded in HTML */

:root {
  /* Color Palette */
  --bg-primary: #080c14;
  --bg-secondary: #0d1420;
  --bg-card: #111827;
  --bg-card-hover: #1a2236;

  --accent-primary: #00d4ff;
  --accent-secondary: #7c3aed;
  --accent-green: #10b981;
  --accent-orange: #f59e0b;

  --gradient-primary: linear-gradient(135deg, #00d4ff 0%, #7c3aed 100%);
  --gradient-glow: linear-gradient(135deg, rgba(0,212,255,0.15) 0%, rgba(124,58,237,0.15) 100%);

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

  --border-subtle: rgba(255,255,255,0.06);
  --border-glow: rgba(0,212,255,0.2);

  /* Typography */
  --font-sans: 'Inter', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  /* Spacing */
  --section-padding: 100px 0;
  --container-width: 1200px;

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-med: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);

  /* Shadows */
  --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 40px rgba(0,212,255,0.15);
}

/* === RESET === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; }
ul { list-style: none; }

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

/* === CURSOR GLOW === */
.cursor-glow {
  position: fixed;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0,212,255,0.04) 0%, transparent 70%);
  pointer-events: none;
  transform: translate(-50%, -50%);
  transition: 0.15s ease;
  z-index: 0;
}

/* === PARTICLE CANVAS === */
#particleCanvas {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  pointer-events: none;
  z-index: 0;
  opacity: 0.5;
}

/* === CONTAINER === */
.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

/* === GRADIENT TEXT === */
.gradient-text {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* === CARD GLOW === */
.card-glow {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 16px;
  transition: var(--transition-med);
  overflow: hidden;
}
.card-glow::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-glow);
  opacity: 0;
  transition: var(--transition-med);
  pointer-events: none;
}
.card-glow:hover {
  border-color: var(--border-glow);
  transform: translateY(-3px);
  box-shadow: var(--shadow-glow), var(--shadow-md);
}
.card-glow:hover::before { opacity: 1; }

/* === BUTTONS === */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 10px;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: var(--transition-med);
  text-decoration: none;
  position: relative;
  overflow: hidden;
}
.btn svg { width: 18px; height: 18px; transition: transform var(--transition-fast); }
.btn:hover svg { transform: translateX(4px); }

.btn-primary {
  background: var(--gradient-primary);
  color: #fff;
  box-shadow: 0 4px 20px rgba(0,212,255,0.3);
}
.btn-primary:hover {
  box-shadow: 0 8px 30px rgba(0,212,255,0.5);
  transform: translateY(-2px);
}

.btn-secondary {
  background: transparent;
  color: var(--text-primary);
  border: 1.5px solid var(--border-glow);
}
.btn-secondary:hover {
  background: rgba(0,212,255,0.08);
  border-color: var(--accent-primary);
  transform: translateY(-2px);
}

/* === SECTION === */
.section {
  padding: var(--section-padding);
  position: relative;
  z-index: 1;
}

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

.section-tag {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent-primary);
  letter-spacing: 0.05em;
  display: block;
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.section-subtitle {
  margin-top: 16px;
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* ===================================
   NAVIGATION
   =================================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: var(--transition-med);
}
.navbar.scrolled {
  background: rgba(8,12,20,0.9);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
  padding: 12px 0;
}
.nav-container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  font-family: var(--font-mono);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-primary);
  transition: color var(--transition-fast);
}
.nav-logo:hover { color: var(--accent-primary); }
.logo-bracket { color: var(--accent-primary); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}
.nav-link {
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: var(--transition-fast);
}
.nav-link:hover { color: var(--text-primary); background: rgba(255,255,255,0.05); }
.nav-link.active { color: var(--accent-primary); }

.nav-cta {
  background: var(--gradient-primary) !important;
  color: #fff !important;
  padding: 8px 20px !important;
}
.nav-cta:hover { opacity: 0.9; transform: translateY(-1px); }

.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-med);
}

/* ===================================
   HERO
   =================================== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 24px 80px;
  max-width: var(--container-width);
  margin: 0 auto;
  gap: 60px;
  position: relative;
  z-index: 1;
}

.hero-content {
  flex: 1;
  max-width: 600px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(16,185,129,0.1);
  border: 1px solid rgba(16,185,129,0.3);
  border-radius: 100px;
  padding: 6px 16px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--accent-green);
  margin-bottom: 24px;
}
.badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-green);
  animation: pulse-green 2s ease-in-out infinite;
}
@keyframes pulse-green {
  0%, 100% { box-shadow: 0 0 0 0 rgba(16,185,129,0.4); }
  50% { box-shadow: 0 0 0 6px rgba(16,185,129,0); }
}

.hero-title {
  font-size: clamp(2.5rem, 6vw, 4.2rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 16px;
}
.hero-greeting {
  display: block;
  font-size: 0.5em;
  font-weight: 400;
  color: var(--text-secondary);
  letter-spacing: 0.02em;
  margin-bottom: 4px;
}
.hero-name {
  display: block;
  white-space: nowrap;
  font-size: clamp(1.6rem, 4.5vw, 4.2rem);
}

.hero-role {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 24px;
  min-height: 32px;
}
.role-prefix { color: var(--text-secondary); }
.role-typewriter {
  color: var(--accent-primary);
  font-family: var(--font-mono);
  border-right: 2px solid var(--accent-primary);
  padding-right: 2px;
  white-space: nowrap;
  overflow: hidden;
  animation: blink 0.8s step-end infinite;
}
@keyframes blink {
  from, to { border-color: var(--accent-primary); }
  50% { border-color: transparent; }
}

.hero-description {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 36px;
}
.hero-description strong { color: var(--text-primary); }

.hero-stats {
  display: flex;
  align-items: center;
  gap: 32px;
  margin-bottom: 40px;
}
.stat-item {
  display: flex;
  flex-direction: column;
}
.stat-number {
  font-size: 2.5rem;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}
.stat-suffix {
  font-size: 1.5rem;
  font-weight: 700;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 500;
  margin-top: 4px;
}
.stat-divider {
  width: 1px;
  height: 48px;
  background: var(--border-subtle);
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* Code Window */
.hero-visual {
  flex: 1;
  max-width: 520px;
  position: relative;
}
.code-window {
  background: #0a0f1a;
  border: 1px solid var(--border-subtle);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-md), var(--shadow-glow);
}
.code-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 20px;
  background: rgba(255,255,255,0.03);
  border-bottom: 1px solid var(--border-subtle);
}
.code-dots { display: flex; gap: 6px; }
.dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}
.dot.red { background: #ff5f57; }
.dot.yellow { background: #febc2e; }
.dot.green { background: #28c840; }
.code-filename {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-left: auto;
}
.code-body { padding: 24px; }
.code-content {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--text-secondary);
  white-space: pre-wrap;
  word-break: break-word;
}

/* Floating Badges */
.floating-badges {
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}
.float-badge {
  position: absolute;
  padding: 8px 16px;
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 700;
  font-family: var(--font-mono);
  animation: float 4s ease-in-out infinite;
  animation-delay: var(--delay);
  border: 1px solid;
  backdrop-filter: blur(8px);
  pointer-events: none;
}
@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-12px); }
}

.badge-go    { top: -20px; right: 40px;  background: rgba(0,173,216,0.15); border-color: rgba(0,173,216,0.4); color: #00add8; }
.badge-kafka { top: 30%;   right: -30px; background: rgba(231,88,64,0.15);  border-color: rgba(231,88,64,0.4);  color: #e75840; }
.badge-grpc  { top: 60%;   right: -20px; background: rgba(124,58,237,0.15); border-color: rgba(124,58,237,0.4); color: #a78bfa; }
.badge-docker{ bottom: 20px; right: 60px; background: rgba(0,122,255,0.15); border-color: rgba(0,122,255,0.4);  color: #0ea5e9; }
.badge-pg    { bottom: 30%; left: -20px; background: rgba(51,103,145,0.2);  border-color: rgba(51,103,145,0.5); color: #60a5fa; }

/* ===================================
   ABOUT
   =================================== */
.about { background: var(--bg-secondary); }
.about::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: radial-gradient(ellipse at 80% 50%, rgba(124,58,237,0.05) 0%, transparent 60%);
  pointer-events: none;
}

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

.about-text p {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 20px;
}
.about-text strong { color: var(--text-primary); }

.about-location {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-top: 8px;
}
.about-location svg { width: 16px; height: 16px; color: var(--accent-primary); }

.about-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.about-card {
  padding: 24px;
}
.card-icon {
  font-size: 1.8rem;
  margin-bottom: 12px;
}
.about-card h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
}
.about-card p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ===================================
   SKILLS
   =================================== */
.skills::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: radial-gradient(ellipse at 20% 50%, rgba(0,212,255,0.04) 0%, transparent 60%);
  pointer-events: none;
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-bottom: 40px;
}

.skill-category {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 16px;
  padding: 28px;
  transition: var(--transition-med);
}
.skill-category:hover {
  border-color: var(--border-glow);
  box-shadow: var(--shadow-glow);
}

.skill-cat-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}
.skill-cat-icon { font-size: 1.4rem; }
.skill-cat-header h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}
.skill-tag {
  padding: 4px 12px;
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 600;
  font-family: var(--font-mono);
}
.skill-tag.primary {
  background: rgba(0,212,255,0.12);
  color: var(--accent-primary);
  border: 1px solid rgba(0,212,255,0.25);
}
.skill-tag.secondary {
  background: rgba(124,58,237,0.12);
  color: #a78bfa;
  border: 1px solid rgba(124,58,237,0.25);
}

/* Skill Context — replaces subjective progress bars */
.skill-context {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 4px;
  padding-top: 16px;
  border-top: 1px solid var(--border-subtle);
}
.context-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.83rem;
  color: var(--text-secondary);
  line-height: 1.6;
}
.context-item strong {
  color: var(--text-primary);
}
.context-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
  margin-top: 5px;
}
.context-dot.primary {
  background: var(--accent-primary);
  box-shadow: 0 0 6px rgba(0,212,255,0.5);
}
.context-dot.secondary {
  background: #a78bfa;
  box-shadow: 0 0 6px rgba(167,139,250,0.4);
}

/* Architecture Section */
.architecture-section {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 16px;
  padding: 32px;
  text-align: center;
}
.arch-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 20px;
}
.arch-tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}
.arch-tag {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border-subtle);
  border-radius: 100px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: var(--transition-fast);
}
.arch-tag:hover {
  border-color: var(--border-glow);
  color: var(--text-primary);
  background: rgba(0,212,255,0.05);
}
.arch-icon { font-size: 1rem; }

/* ===================================
   EXPERIENCE / TIMELINE
   =================================== */
.experience { background: var(--bg-secondary); }
.experience::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: radial-gradient(ellipse at 60% 30%, rgba(0,212,255,0.04) 0%, transparent 60%);
  pointer-events: none;
}

.timeline {
  position: relative;
  padding-left: 40px;
}

.timeline-item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 24px;
  margin-bottom: 40px;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.timeline-item.visible {
  opacity: 1;
  transform: translateY(0);
}
.timeline-item:last-child { margin-bottom: 0; }

.timeline-marker {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 8px;
}
.marker-dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  border: 2px solid var(--text-muted);
  background: var(--bg-primary);
  flex-shrink: 0;
  transition: var(--transition-med);
}
.marker-dot.active {
  border-color: var(--accent-primary);
  background: var(--accent-primary);
  box-shadow: 0 0 0 4px rgba(0,212,255,0.2);
}
.marker-line {
  width: 2px;
  flex: 1;
  background: var(--border-subtle);
  min-height: 40px;
  margin-top: 8px;
}

.timeline-card {
  padding: 28px;
}
.exp-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 16px;
  flex-wrap: wrap;
  gap: 12px;
}
.exp-role {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 4px;
}
.exp-company {
  display: flex;
  align-items: center;
  gap: 10px;
}
.company-name {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--accent-primary);
}
.exp-badge {
  padding: 2px 10px;
  border-radius: 100px;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.exp-badge.current {
  background: rgba(16,185,129,0.15);
  color: var(--accent-green);
  border: 1px solid rgba(16,185,129,0.3);
}

.exp-meta {}
.exp-date {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  white-space: nowrap;
}
.exp-date svg { width: 14px; height: 14px; }

.exp-bullets {
  margin-bottom: 16px;
  padding-left: 0;
}
.exp-bullets li {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 8px;
  padding-left: 16px;
  position: relative;
}
.exp-bullets li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--accent-primary);
  font-size: 0.75rem;
  top: 3px;
}
.exp-bullets strong { color: var(--text-primary); }

.exp-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.exp-tags span {
  padding: 3px 10px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border-subtle);
  border-radius: 6px;
  font-size: 0.75rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
}

/* ===================================
   EDUCATION
   =================================== */
.education::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: radial-gradient(ellipse at 50% 50%, rgba(124,58,237,0.05) 0%, transparent 60%);
  pointer-events: none;
}

.edu-card {
  display: flex;
  align-items: center;
  gap: 32px;
  padding: 40px;
  max-width: 800px;
  margin: 0 auto;
}
.edu-icon { font-size: 3rem; }
.edu-content { flex: 1; }
.edu-content h3 {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 8px;
}
.edu-degree {
  font-size: 1rem;
  color: var(--accent-primary);
  font-weight: 600;
  margin-bottom: 12px;
}
.edu-meta {
  display: flex;
  gap: 24px;
  align-items: center;
}
.edu-year {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--text-muted);
}
.edu-gpa {
  font-size: 0.95rem;
  color: var(--text-secondary);
}
.edu-gpa strong { color: var(--accent-primary); }

/* GPA Ring */
.edu-badge {}
.gpa-ring {
  position: relative;
  width: 100px;
  height: 100px;
}
.gpa-ring svg {
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
}
.ring-bg {
  fill: none;
  stroke: rgba(255,255,255,0.08);
  stroke-width: 8;
}
.ring-fill {
  fill: none;
  stroke: url(#gradient);
  stroke-width: 8;
  stroke-linecap: round;
  stroke-dasharray: 251;
  transition: stroke-dashoffset 1.5s ease;
}
.gpa-text {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
.gpa-value {
  font-size: 1.3rem;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}
.gpa-label {
  font-size: 0.65rem;
  color: var(--text-muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ===================================
   PROJECTS
   =================================== */
.projects { background: var(--bg-primary); }
.projects::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: radial-gradient(ellipse at 30% 60%, rgba(0,212,255,0.05) 0%, transparent 60%);
  pointer-events: none;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 24px;
}

/* Project Card */
.project-card {
  display: flex;
  flex-direction: column;
  padding: 0;
  overflow: hidden;
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.5s ease, transform 0.5s ease, border-color var(--transition-med), box-shadow var(--transition-med);
}
.project-card.visible {
  opacity: 1;
  transform: translateY(0);
}

.project-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding: 24px 24px 0;
}

.project-icon-wrap {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(0,212,255,0.15), rgba(124,58,237,0.15));
  border: 1px solid rgba(0,212,255,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
}
.project-icon { font-size: 1.6rem; }

.project-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.03em;
}
.project-status.live {
  background: rgba(16,185,129,0.12);
  color: var(--accent-green);
  border: 1px solid rgba(16,185,129,0.3);
}
.project-status .status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent-green);
  animation: pulse-green 2s ease-in-out infinite;
}
.project-status.wip {
  background: rgba(245,158,11,0.12);
  color: var(--accent-orange);
  border: 1px solid rgba(245,158,11,0.3);
}

/* Body */
.project-body {
  padding: 20px 24px 16px;
  flex: 1;
}
.project-title {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 4px;
  letter-spacing: -0.02em;
}
.project-subtitle {
  font-size: 0.85rem;
  color: var(--accent-primary);
  font-weight: 600;
  margin-bottom: 14px;
}
.project-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 20px;
}
.project-desc strong { color: var(--text-primary); }

/* Highlights */
.project-highlights {
  display: flex;
  gap: 0;
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  overflow: hidden;
  margin-bottom: 4px;
}
.highlight-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 12px 8px;
  border-right: 1px solid var(--border-subtle);
  background: rgba(255,255,255,0.02);
}
.highlight-item:last-child { border-right: none; }
.highlight-num {
  font-size: 1.1rem;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 4px;
}
.highlight-label {
  font-size: 0.7rem;
  color: var(--text-muted);
  font-weight: 500;
  text-align: center;
  line-height: 1.3;
}

/* Footer */
.project-footer {
  padding: 16px 24px 24px;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.project-tags span {
  padding: 3px 10px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border-subtle);
  border-radius: 6px;
  font-size: 0.73rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
}

.project-links {
  display: flex;
  gap: 10px;
}
.project-link-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 0.83rem;
  font-weight: 600;
  transition: var(--transition-med);
  text-decoration: none;
  cursor: pointer;
}
.project-link-btn svg { width: 14px; height: 14px; flex-shrink: 0; }

.project-link-btn.primary {
  background: var(--gradient-primary);
  color: #fff;
  box-shadow: 0 4px 14px rgba(0,212,255,0.25);
}
.project-link-btn.primary:hover {
  box-shadow: 0 6px 20px rgba(0,212,255,0.4);
  transform: translateY(-2px);
}
.project-link-btn.secondary {
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
}
.project-link-btn.secondary:hover {
  border-color: var(--border-glow);
  color: var(--text-primary);
  transform: translateY(-2px);
}

/* Placeholder Card */
.project-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 240px;
  border-style: dashed;
  opacity: 0.5;
  cursor: default;
}
.project-placeholder:hover {
  opacity: 0.7;
  transform: none;
}
.placeholder-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  text-align: center;
  padding: 24px;
}
.placeholder-icon { font-size: 2rem; }
.placeholder-inner p {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-secondary);
}
.placeholder-sub {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

@media (max-width: 768px) {
  .projects-grid { grid-template-columns: 1fr; }
}

/* ===================================
   ACHIEVEMENTS
   =================================== */

.achievements { background: var(--bg-secondary); }
.achievements::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: radial-gradient(ellipse at 80% 70%, rgba(0,212,255,0.05) 0%, transparent 60%);
  pointer-events: none;
}

.achievements-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.achievement-card {
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  position: relative;
  overflow: hidden;
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.achievement-card.visible {
  opacity: 1;
  transform: translateY(0);
}

.achievement-icon {
  font-size: 2rem;
  position: relative;
  z-index: 1;
}
.achievement-content { position: relative; z-index: 1; }
.achievement-content h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
}
.achievement-content p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
}
.achievement-content strong { color: var(--text-primary); }

.achievement-number {
  position: absolute;
  bottom: 16px;
  right: 20px;
  font-size: 4rem;
  font-weight: 900;
  color: rgba(255,255,255,0.03);
  font-family: var(--font-mono);
  line-height: 1;
  pointer-events: none;
}

/* ===================================
   CONTACT
   =================================== */
.contact::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: radial-gradient(ellipse at 50% 80%, rgba(124,58,237,0.08) 0%, transparent 60%);
  pointer-events: none;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}

.contact-links { display: flex; flex-direction: column; gap: 12px; }

.contact-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px 24px;
  text-decoration: none;
}
.contact-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.contact-icon svg { width: 20px; height: 20px; }
.email-icon    { background: rgba(0,212,255,0.12); color: var(--accent-primary); }
.phone-icon    { background: rgba(16,185,129,0.12); color: var(--accent-green); }
.linkedin-icon { background: rgba(10,102,194,0.15); color: #60a5fa; }
.github-icon   { background: rgba(255,255,255,0.08); color: var(--text-primary); }

.contact-info {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-width: 0;
}
.contact-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.contact-value {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.contact-arrow {
  width: 18px;
  height: 18px;
  color: var(--text-muted);
  transition: transform var(--transition-fast), color var(--transition-fast);
}
.contact-card:hover .contact-arrow {
  transform: translateX(4px);
  color: var(--accent-primary);
}

/* CTA Card */
.cta-card {
  padding: 40px;
  position: relative;
  overflow: hidden;
}
.cta-pulse {
  position: absolute;
  top: -60px;
  right: -60px;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0,212,255,0.1) 0%, transparent 70%);
  animation: pulse-slow 3s ease-in-out infinite;
}
@keyframes pulse-slow {
  0%, 100% { transform: scale(1); opacity: 0.6; }
  50% { transform: scale(1.2); opacity: 1; }
}
.cta-card h3 {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 12px;
  position: relative;
}
.cta-card p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 20px;
  position: relative;
}
.cta-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 28px;
  position: relative;
}
.cta-tags span {
  padding: 4px 12px;
  background: rgba(0,212,255,0.08);
  border: 1px solid rgba(0,212,255,0.2);
  border-radius: 100px;
  font-size: 0.8rem;
  color: var(--accent-primary);
  font-weight: 500;
}

/* ===================================
   FOOTER
   =================================== */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-subtle);
  padding: 28px 0;
  position: relative;
  z-index: 1;
}
.footer-container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}
.footer-copy {
  font-size: 0.88rem;
  color: var(--text-muted);
}
.footer-links {
  display: flex;
  gap: 20px;
}
.footer-links a {
  font-size: 0.88rem;
  color: var(--text-muted);
  transition: color var(--transition-fast);
}
.footer-links a:hover { color: var(--accent-primary); }

/* ===================================
   RESPONSIVE
   =================================== */
@media (max-width: 1024px) {
  .hero {
    flex-direction: column;
    text-align: center;
    padding: 140px 24px 80px;
  }
  .hero-content { max-width: 100%; }
  .hero-visual { max-width: 100%; }
  .hero-stats { justify-content: center; }
  .hero-actions { justify-content: center; }
  .hero-role { justify-content: center; }
  .floating-badges { display: none; }
  .about-grid { grid-template-columns: 1fr; }
  .skills-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  :root { --section-padding: 70px 0; }
  .nav-links { display: none; flex-direction: column; position: fixed; top: 0; left: 0; right: 0; bottom: 0; background: rgba(8,12,20,0.97); align-items: center; justify-content: center; gap: 24px; }
  .nav-links.open { display: flex; }
  .nav-link { font-size: 1.2rem; }
  .hamburger { display: flex; z-index: 1100; }
  .achievements-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .edu-card { flex-direction: column; text-align: center; }
  .edu-meta { justify-content: center; }
  .timeline { padding-left: 0; }
  .timeline-item { grid-template-columns: 1fr; }
  .timeline-marker { flex-direction: row; margin-bottom: 12px; }
  .marker-line { width: 40px; height: 2px; margin-top: 0; margin-left: 8px; flex: none; }
  .about-cards { grid-template-columns: 1fr; }
  .hero-stats { gap: 20px; }
}

@media (max-width: 480px) {
  .hero-title { font-size: 2.2rem; }
  .btn { padding: 12px 20px; }
  .hero-actions { flex-direction: column; align-items: center; }
}

/* ===================================
   SCROLL ANIMATIONS
   =================================== */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}