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

:root {
  --bg:          #060a11;
  --bg-2:        #0b1120;
  --bg-3:        #0f1628;
  --surface:     rgba(255,255,255,0.04);
  --surface-hi:  rgba(255,255,255,0.07);
  --border:      rgba(255,255,255,0.07);
  --border-hi:   rgba(255,255,255,0.14);

  --accent-blue:   #4f8ef7;
  --accent-purple: #a855f7;
  --accent-teal:   #2dd4bf;
  --accent-amber:  #f59e0b;
  --accent-azure:  #00b4d8;

  --grad-start: #4f8ef7;
  --grad-end:   #a855f7;

  --text:       #f1f5f9;
  --text-muted: #94a3b8;
  --text-dim:   #475569;

  --radius:    12px;
  --radius-lg: 20px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);

  --font-body:    'Inter', sans-serif;
  --font-display: 'Outfit', sans-serif;
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  overflow-x: hidden;
}

/* ── SCROLLBAR ── */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: rgba(79,142,247,0.35); border-radius: 3px; }

/* ── UTILITY ── */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 40px;
}

.gradient-text {
  background: linear-gradient(135deg, var(--grad-start), var(--grad-end));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-label {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-blue);
  background: rgba(79,142,247,0.1);
  border: 1px solid rgba(79,142,247,0.22);
  padding: 4px 14px;
  border-radius: 999px;
  margin-bottom: 14px;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 52px;
}

/* ── PROGRESS BAR ── */
#progress-bar {
  position: fixed;
  top: 0; left: 0;
  height: 3px;
  width: 0%;
  background: linear-gradient(90deg, var(--grad-start), var(--grad-end));
  z-index: 2000;
  transition: width 0.1s linear;
  border-radius: 0 2px 2px 0;
}

/* ── GHOST SECTION NUMBERS ── */
.ghost-num {
  position: absolute;
  right: 4%;
  top: 24px;
  font-family: var(--font-display);
  font-size: clamp(80px, 14vw, 180px);
  font-weight: 900;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1px rgba(255,255,255,0.04);
  user-select: none;
  pointer-events: none;
  z-index: 0;
}

/* ── SCROLL REVEAL ── */
.reveal,
.reveal-left,
.reveal-right {
  opacity: 0;
  transition: opacity 0.65s ease, transform 0.65s cubic-bezier(0.4, 0, 0.2, 1);
  transition-delay: var(--delay, 0s);
}
.reveal         { transform: translateY(32px); }
.reveal-left    { transform: translateX(-40px); }
.reveal-right   { transform: translateX(40px); }
.reveal.visible,
.reveal-left.visible,
.reveal-right.visible { opacity: 1; transform: translate(0); }

/* ── NAV ── */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 0 40px;
  height: 68px;
  display: flex;
  align-items: center;
  background: transparent;
  transition: background var(--transition), backdrop-filter var(--transition), border-bottom var(--transition);
}
#navbar.scrolled {
  background: rgba(6,10,17,0.88);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.nav-logo {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--grad-start), var(--grad-end));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-decoration: none;
  letter-spacing: -0.02em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
}
.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  padding: 7px 16px;
  border-radius: var(--radius);
  transition: color var(--transition), background var(--transition);
}
.nav-links a:hover { color: var(--text); background: var(--surface); }
.nav-links a.active { color: var(--text); }

.btn-nav {
  background: linear-gradient(135deg, var(--grad-start), var(--grad-end)) !important;
  color: #fff !important;
  font-weight: 600 !important;
  border-radius: 999px !important;
  padding: 8px 22px !important;
  box-shadow: 0 0 20px rgba(79,142,247,0.25);
}
.btn-nav:hover { opacity: 0.88; }

/* Hamburger */
.hamburger { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 6px; }
.hamburger span { display: block; width: 24px; height: 2px; background: var(--text-muted); border-radius: 1px; transition: var(--transition); }

/* Mobile menu */
.mobile-menu {
  display: none;
  position: fixed;
  top: 68px; left: 0; right: 0;
  background: rgba(6,10,17,0.97);
  backdrop-filter: blur(24px);
  border-bottom: 1px solid var(--border);
  padding: 16px 24px 24px;
  z-index: 999;
  transform: translateY(-110%);
  transition: transform var(--transition);
}
.mobile-menu.open { transform: translateY(0); }
.mobile-menu ul { list-style: none; display: flex; flex-direction: column; gap: 4px; }
.mobile-link {
  display: block; color: var(--text-muted); text-decoration: none;
  font-size: 1rem; font-weight: 500; padding: 12px 16px;
  border-radius: var(--radius); transition: color var(--transition), background var(--transition);
}
.mobile-link:hover { color: var(--text); background: var(--surface); }

/* ── HERO ── */
#hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: 100px 40px 80px;
}

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

.grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(79,142,247,0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(79,142,247,0.045) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 90% 90% at 50% 50%, black, transparent);
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.3;
}
.orb-1 { width: 700px; height: 700px; background: radial-gradient(circle, #4f8ef7, transparent 70%); top: -250px; left: -200px; animation: float 8s ease-in-out infinite; }
.orb-2 { width: 600px; height: 600px; background: radial-gradient(circle, #a855f7, transparent 70%); top: -100px; right: -150px; animation: float 11s ease-in-out infinite reverse; }
.orb-3 { width: 400px; height: 400px; background: radial-gradient(circle, #2dd4bf, transparent 70%); bottom: -100px; left: 40%; opacity: 0.18; animation: float 13s ease-in-out infinite; }

@keyframes float {
  0%,100% { transform: translateY(0) translateX(0); }
  33%      { transform: translateY(-24px) translateX(12px); }
  66%      { transform: translateY(12px) translateX(-12px); }
}

/* Hero split layout */
.hero-layout {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  max-width: 1280px;
  width: 100%;
}

.hero-content { text-align: left; }

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent-teal);
  background: rgba(45,212,191,0.09);
  border: 1px solid rgba(45,212,191,0.22);
  padding: 6px 16px;
  border-radius: 999px;
  margin-bottom: 24px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  animation: fadeInUp 0.6s ease 0.1s both;
}

.badge-dot {
  width: 7px; height: 7px;
  background: var(--accent-teal);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse { 0%,100% { opacity:1; transform:scale(1); } 50% { opacity:0.5; transform:scale(0.8); } }

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 5.5vw, 4.8rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.025em;
  margin-bottom: 18px;
  animation: fadeInUp 0.6s ease 0.2s both;
}

.hero-subtitle {
  font-size: clamp(0.9rem, 1.8vw, 1.1rem);
  color: var(--text-muted);
  font-weight: 500;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
  animation: fadeInUp 0.6s ease 0.3s both;
}

.typewriter-wrap { display: inline-flex; align-items: center; gap: 1px; }
.cursor-blink {
  color: var(--accent-blue);
  font-weight: 300;
  animation: blink 1s step-end infinite;
  margin-left: 1px;
}
@keyframes blink { 0%,100% { opacity:1; } 50% { opacity:0; } }

.divider { color: var(--accent-blue); margin: 0 2px; }

.hero-desc {
  font-size: clamp(0.9rem, 1.5vw, 1.02rem);
  color: var(--text-muted);
  max-width: 520px;
  margin-bottom: 36px;
  line-height: 1.8;
  animation: fadeInUp 0.6s ease 0.4s both;
}

.hero-cta {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 52px;
  animation: fadeInUp 0.6s ease 0.5s both;
}

.btn-primary {
  display: inline-block;
  background: linear-gradient(135deg, var(--grad-start), var(--grad-end));
  color: #fff;
  font-weight: 600;
  font-size: 0.925rem;
  padding: 14px 32px;
  border-radius: 999px;
  text-decoration: none;
  transition: opacity var(--transition), transform var(--transition), box-shadow var(--transition);
  box-shadow: 0 0 32px rgba(79,142,247,0.3);
  will-change: transform;
}
.btn-primary:hover { opacity: 0.9; box-shadow: 0 0 52px rgba(79,142,247,0.45); }

.btn-outline {
  display: inline-block;
  color: var(--text);
  font-weight: 600;
  font-size: 0.925rem;
  padding: 13px 32px;
  border-radius: 999px;
  text-decoration: none;
  border: 1px solid var(--border-hi);
  background: var(--surface);
  transition: border-color var(--transition), background var(--transition), transform var(--transition);
  will-change: transform;
}
.btn-outline:hover { border-color: var(--accent-blue); background: rgba(79,142,247,0.07); }

.btn-large { padding: 16px 44px !important; font-size: 1rem !important; }

.hero-stats {
  display: flex;
  align-items: center;
  gap: 0;
  animation: fadeInUp 0.6s ease 0.6s both;
}
.stat { display: flex; flex-direction: column; align-items: flex-start; padding: 0 28px 0 0; }
.stat:first-child { padding-left: 0; }
.stat-num {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--grad-start), var(--grad-end));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}
.stat-label { font-size: 0.72rem; color: var(--text-dim); font-weight: 500; margin-top: 4px; text-transform: uppercase; letter-spacing: 0.08em; }
.stat-divider { width: 1px; height: 36px; background: var(--border); margin: 0 28px 0 0; flex-shrink: 0; }

/* Hero visual (right side) */
.hero-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 420px;
  animation: fadeInUp 0.7s ease 0.4s both;
}

.profile-card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border-hi);
  border-radius: 24px;
  padding: 36px 32px;
  width: 300px;
  backdrop-filter: blur(24px);
  overflow: hidden;
  box-shadow: 0 24px 64px rgba(0,0,0,0.4), inset 0 1px 0 rgba(255,255,255,0.06);
}

.profile-glow {
  position: absolute;
  width: 200px; height: 200px;
  background: radial-gradient(circle, rgba(79,142,247,0.18), transparent 70%);
  top: -60px; right: -60px;
  pointer-events: none;
}

.profile-avatar {
  width: 72px; height: 72px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--grad-start), var(--grad-end));
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display);
  font-size: 1.5rem; font-weight: 800; color: #fff;
  margin-bottom: 14px;
  box-shadow: 0 0 28px rgba(79,142,247,0.35);
}

.profile-name {
  font-family: var(--font-display);
  font-size: 1.1rem; font-weight: 700;
  color: var(--text);
  margin-bottom: 4px;
}

.profile-role { font-size: 0.78rem; color: var(--text-muted); margin-bottom: 20px; }

.profile-divider { height: 1px; background: var(--border); margin-bottom: 20px; }

.profile-info { display: flex; flex-direction: column; gap: 12px; }
.pi-row {
  display: flex; align-items: center; gap: 10px;
  font-size: 0.82rem; color: var(--text-muted);
}
.pi-icon { font-size: 1rem; flex-shrink: 0; }

/* Floating badges */
.float-badge {
  position: absolute;
  background: rgba(15,22,40,0.9);
  border: 1px solid var(--border-hi);
  border-radius: 12px;
  padding: 10px 16px;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 8px;
  backdrop-filter: blur(16px);
  box-shadow: 0 8px 32px rgba(0,0,0,0.4);
  white-space: nowrap;
}
.float-badge-1 { top: 10px; right: -10px; animation: floatBadge 3.5s ease-in-out infinite; }
.float-badge-2 { bottom: 40px; left: -20px; animation: floatBadge 4s ease-in-out infinite 1.5s; }
@keyframes floatBadge { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }

.fb-dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
.fb-teal  { background: var(--accent-teal); box-shadow: 0 0 6px var(--accent-teal); }
.fb-amber { background: var(--accent-amber); box-shadow: 0 0 6px var(--accent-amber); }

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: 36px; left: 50%;
  transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  color: var(--text-dim);
  font-size: 0.68rem; letter-spacing: 0.14em; text-transform: uppercase;
  animation: fadeInUp 1s ease 1.2s both;
}
.scroll-line {
  width: 1px; height: 40px;
  background: linear-gradient(to bottom, var(--text-dim), transparent);
  animation: scrollLine 2s ease-in-out infinite;
}
@keyframes scrollLine { 0%,100% { opacity:0.4; transform:scaleY(1); } 50% { opacity:1; transform:scaleY(0.6); } }

/* ── ABOUT ── */
#about {
  position: relative;
  padding: 130px 0;
  background: var(--bg-2);
  overflow: hidden;
}
#about::before {
  content:'';position:absolute;top:0;left:0;right:0;height:1px;
  background: linear-gradient(90deg, transparent, var(--border-hi), transparent);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.8fr;
  gap: 80px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.avatar-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  display: flex; flex-direction: column; align-items: center; gap: 28px;
  transition: border-color var(--transition);
}
.avatar-card:hover { border-color: var(--border-hi); }

.avatar-ring {
  width: 100px; height: 100px; border-radius: 50%;
  background: linear-gradient(135deg, var(--grad-start), var(--grad-end));
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 0 40px rgba(79,142,247,0.3);
}
.avatar-initials { font-family: var(--font-display); font-size: 2.2rem; font-weight: 800; color: #fff; }

.avatar-card-info { width: 100%; display: flex; flex-direction: column; gap: 10px; }
.info-row {
  display: flex; align-items: center; gap: 12px;
  font-size: 0.85rem; color: var(--text-muted);
  padding: 9px 12px;
  background: var(--surface);
  border-radius: var(--radius);
  border: 1px solid transparent;
  transition: border-color var(--transition);
}
.info-row:hover { border-color: var(--border); }
.info-icon { font-size: 1rem; flex-shrink: 0; }

.about-text h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 700; line-height: 1.2;
  margin-bottom: 20px;
}
.about-text p { color: var(--text-muted); margin-bottom: 16px; line-height: 1.85; }

.about-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 28px; }
.tag {
  font-size: 0.78rem; font-weight: 500; color: var(--accent-blue);
  background: rgba(79,142,247,0.09);
  border: 1px solid rgba(79,142,247,0.2);
  padding: 5px 14px; border-radius: 999px;
}

/* ── EXPERIENCE ── */
#experience {
  position: relative;
  padding: 130px 0;
  background: var(--bg);
  overflow: hidden;
}

/* Timeline - mobile first */
.timeline {
  display: flex;
  flex-direction: column;
  gap: 0;
  position: relative;
  padding-left: 24px;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 7px; top: 8px; bottom: 8px; width: 2px;
  background: linear-gradient(to bottom, var(--accent-blue), var(--accent-purple), var(--accent-teal));
  opacity: 0.25;
}

.timeline-item {
  display: flex;
  gap: 28px;
  align-items: flex-start;
  padding-bottom: 36px;
}

.timeline-dot {
  width: 16px; height: 16px; border-radius: 50%;
  flex-shrink: 0; margin-top: 5px;
  margin-left: -31px;
  position: relative; z-index: 1;
}
.exp-dot { background: var(--accent-blue); box-shadow: 0 0 14px rgba(79,142,247,0.55); }
.edu-dot { background: var(--accent-purple); box-shadow: 0 0 14px rgba(168,85,247,0.55); }

.timeline-card {
  flex: 1;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px 28px;
  transition: border-color var(--transition), background var(--transition), transform var(--transition);
}
.timeline-card:hover { border-color: var(--border-hi); background: var(--surface-hi); transform: translateX(4px); }

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

.card-type {
  display: inline-block;
  font-size: 0.68rem; font-weight: 700;
  letter-spacing: 0.1em; text-transform: uppercase;
  padding: 3px 10px; border-radius: 999px; margin-bottom: 8px;
}
.exp-badge    { background: rgba(79,142,247,0.14); color: var(--accent-blue); border: 1px solid rgba(79,142,247,0.28); }
.edu-badge    { background: rgba(168,85,247,0.14); color: var(--accent-purple); border: 1px solid rgba(168,85,247,0.28); }
.intern-badge { background: rgba(45,212,191,0.12); color: var(--accent-teal); border: 1px solid rgba(45,212,191,0.28); }

.timeline-card h3 {
  font-family: var(--font-display);
  font-size: 1.05rem; font-weight: 700; color: var(--text); margin-bottom: 4px;
}
.card-org { font-size: 0.83rem; color: var(--text-muted); }
.card-date {
  font-size: 0.75rem; font-weight: 600; color: var(--text-dim);
  white-space: nowrap; padding: 4px 12px;
  background: var(--surface); border: 1px solid var(--border); border-radius: 999px; flex-shrink: 0;
}
.card-bullets { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.card-bullets li {
  font-size: 0.86rem; color: var(--text-muted); padding-left: 18px; position: relative; line-height: 1.65;
}
.card-bullets li::before { content:'→'; position:absolute; left:0; color:var(--accent-blue); font-size:0.74rem; top:2px; }

/* Desktop alternating timeline */
@media (min-width: 900px) {
  .timeline { padding-left: 0; }
  .timeline::before { left: calc(50% - 1px); }

  .timeline-item {
    width: 100%;
    position: relative;
    padding-left: calc(50% + 36px);
    padding-bottom: 48px;
    gap: 0;
  }
  .timeline-item:nth-child(even) {
    padding-left: 0;
    padding-right: calc(50% + 36px);
  }
  .timeline-dot {
    position: absolute;
    left: calc(50% - 8px);
    top: 5px;
    margin-left: 0;
  }
  .timeline-item:nth-child(even) .timeline-card:hover { transform: translateX(-4px); }
  .timeline-item:nth-child(odd)  .timeline-card:hover { transform: translateX(4px); }
}

/* ── PROJECTS ── */
#projects {
  position: relative;
  padding: 130px 0;
  background: var(--bg-2);
  overflow: hidden;
}
#projects::before {
  content:'';position:absolute;top:0;left:0;right:0;height:1px;
  background: linear-gradient(90deg, transparent, var(--border-hi), transparent);
}

.projects-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  position: relative;
  z-index: 1;
}

/* Featured card spans both columns */
.project-featured {
  grid-column: 1 / -1;
}

.project-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  position: relative;
  overflow: hidden;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}
.project-card:hover {
  border-color: var(--border-hi);
  transform: translateY(-6px);
  box-shadow: 0 24px 64px rgba(0,0,0,0.45);
}

/* Featured inner layout */
.featured-inner {
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: 48px;
  align-items: center;
}
.featured-right {
  display: flex; flex-direction: column; gap: 16px;
  border-left: 1px solid var(--border);
  padding-left: 48px;
}
.featured-stack-label {
  font-size: 0.7rem; font-weight: 700; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--text-dim); margin-bottom: 4px;
}
.project-techs.col { display: flex; flex-direction: column; gap: 8px; }
.project-techs.col .tech {
  display: block; padding: 8px 16px;
  border-radius: var(--radius);
  font-size: 0.82rem; font-weight: 500;
}

.project-accent {
  position: absolute; top: 0; left: 0; right: 0; height: 3px;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}
.accent-blue   { background: linear-gradient(90deg, var(--accent-blue), transparent); }
.accent-purple { background: linear-gradient(90deg, var(--accent-purple), transparent); }
.accent-teal   { background: linear-gradient(90deg, var(--accent-teal), transparent); }

.project-icon { font-size: 2rem; margin-bottom: 16px; display: block; }
.project-meta { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.project-tag {
  font-size: 0.68rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--accent-blue); background: rgba(79,142,247,0.1);
  border: 1px solid rgba(79,142,247,0.2);
  padding: 3px 10px; border-radius: 999px;
}
.project-date { font-size: 0.76rem; color: var(--text-dim); font-weight: 500; }

.project-card h3 {
  font-family: var(--font-display);
  font-size: 1.12rem; font-weight: 700; margin-bottom: 12px; line-height: 1.3;
}
.project-card p { font-size: 0.875rem; color: var(--text-muted); line-height: 1.78; margin-bottom: 20px; }

.project-techs { display: flex; flex-wrap: wrap; gap: 6px; }
.tech {
  font-size: 0.72rem; font-weight: 600; color: var(--text-dim);
  border: 1px solid var(--border); padding: 3px 10px; border-radius: 999px;
  background: var(--surface);
}

/* ── SKILLS ── */
#skills { position: relative; padding: 130px 0; background: var(--bg); overflow: hidden; }

.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 64px;
  position: relative; z-index: 1;
}

.skill-group {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: border-color var(--transition), transform var(--transition);
}
.skill-group:hover { border-color: var(--border-hi); transform: translateY(-3px); }

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

.skill-pills { display: flex; flex-wrap: wrap; gap: 8px; }
.pill {
  font-size: 0.79rem; font-weight: 500; color: var(--text-muted);
  background: var(--surface-hi); border: 1px solid var(--border);
  padding: 5px 14px; border-radius: 999px;
  transition: color var(--transition), border-color var(--transition), background var(--transition);
  cursor: default;
}
.pill:hover { color: var(--text); border-color: var(--border-hi); }
.pill-aws   { color: var(--accent-amber) !important; border-color: rgba(245,158,11,0.3) !important; background: rgba(245,158,11,0.08) !important; }
.pill-azure { color: var(--accent-azure) !important; border-color: rgba(0,180,216,0.3) !important; background: rgba(0,180,216,0.08) !important; }

/* Certs */
.certs-title { font-family: var(--font-display); font-size: 1.25rem; font-weight: 700; margin-bottom: 24px; }
.certs-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 14px; }
.cert-card {
  display: flex; align-items: center; gap: 16px;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 18px 20px;
  transition: border-color var(--transition), transform var(--transition);
}
.cert-card:hover { border-color: var(--border-hi); transform: translateX(4px); }
.cert-icon { font-size: 1.4rem; flex-shrink: 0; }
.cert-info { flex: 1; }
.cert-name { font-size: 0.875rem; font-weight: 600; line-height: 1.4; }
.cert-year { font-size: 0.74rem; color: var(--text-dim); margin-top: 2px; }
.cert-badge {
  font-size: 0.64rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--accent-amber); background: rgba(245,158,11,0.1);
  border: 1px solid rgba(245,158,11,0.25);
  padding: 3px 10px; border-radius: 999px; flex-shrink: 0;
}

/* ── CONTACT ── */
#contact {
  position: relative;
  padding: 130px 0;
  background: var(--bg-2);
  text-align: center;
  overflow: hidden;
}
#contact::before {
  content:'';position:absolute;top:0;left:0;right:0;height:1px;
  background: linear-gradient(90deg, transparent, var(--border-hi), transparent);
}
#contact::after {
  content:'';position:absolute;bottom:-200px;left:50%;transform:translateX(-50%);
  width:700px;height:700px;
  background: radial-gradient(circle, rgba(79,142,247,0.06), transparent 70%);
  pointer-events:none;
}

.contact-desc {
  font-size: clamp(0.9rem, 1.8vw, 1.02rem);
  color: var(--text-muted);
  max-width: 560px; margin: -24px auto 48px; line-height: 1.85;
}

.contact-grid {
  display: flex; justify-content: center; flex-wrap: wrap; gap: 20px; margin-bottom: 48px;
}
.contact-card {
  display: flex; flex-direction: column; align-items: center; gap: 6px;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 24px 36px; min-width: 210px;
  transition: border-color var(--transition), transform var(--transition);
}
.contact-card:hover { border-color: var(--border-hi); transform: translateY(-4px); }
.contact-icon { font-size: 1.5rem; }
.contact-label { font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.12em; color: var(--text-dim); font-weight: 700; }
.contact-value { font-size: 0.875rem; font-weight: 500; color: var(--text-muted); text-decoration: none; transition: color var(--transition); }
.contact-value:hover { color: var(--accent-blue); }

/* ── FOOTER ── */
footer { padding: 24px 40px; border-top: 1px solid var(--border); background: var(--bg); }
.footer-inner {
  display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap;
}
.footer-logo {
  font-family: var(--font-display); font-weight: 700; font-size: 0.95rem;
  background: linear-gradient(135deg, var(--grad-start), var(--grad-end));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.footer-copy { font-size: 0.8rem; color: var(--text-dim); }

/* ── DOT NAVIGATION ── */
.dot-nav {
  position: fixed;
  right: 28px; top: 50%; transform: translateY(-50%);
  display: flex; flex-direction: column; gap: 14px;
  z-index: 900;
}
.dot-nav-item {
  position: relative;
  display: flex; align-items: center; justify-content: flex-end;
  text-decoration: none;
}
.dot-nav-item .dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--border-hi);
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
  display: block;
}
.dot-nav-item::before {
  content: attr(data-label);
  position: absolute; right: 20px;
  font-size: 0.72rem; font-weight: 600; color: var(--text-muted);
  background: rgba(6,10,17,0.9);
  border: 1px solid var(--border);
  padding: 3px 10px; border-radius: 6px;
  white-space: nowrap;
  opacity: 0; transform: translateX(8px);
  transition: opacity var(--transition), transform var(--transition);
  pointer-events: none;
}
.dot-nav-item:hover::before { opacity: 1; transform: translateX(0); }
.dot-nav-item.active .dot {
  background: linear-gradient(135deg, var(--grad-start), var(--grad-end));
  transform: scale(1.4);
  box-shadow: 0 0 10px rgba(79,142,247,0.6);
}

/* ── BACK TO TOP ── */
.back-to-top {
  position: fixed;
  bottom: 32px; right: 32px;
  width: 44px; height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--grad-start), var(--grad-end));
  color: #fff; border: none; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 20px rgba(79,142,247,0.4);
  opacity: 0; transform: translateY(20px);
  transition: opacity var(--transition), transform var(--transition);
  z-index: 900;
}
.back-to-top.visible { opacity: 1; transform: translateY(0); }
.back-to-top:hover { transform: translateY(-3px); box-shadow: 0 8px 28px rgba(79,142,247,0.5); }

/* ── ANIMATIONS ── */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Magnetic button */
.magnetic { display: inline-block; }

/* ── RESPONSIVE ── */
@media (max-width: 1024px) {
  .dot-nav { display: none; }
  .skills-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 900px) {
  .hero-layout { grid-template-columns: 1fr; text-align: center; }
  .hero-visual  { display: none; }
  .hero-content { text-align: center; }
  .hero-cta     { justify-content: center; }
  .hero-stats   { justify-content: center; }
  .stat         { align-items: center; }
  .hero-desc    { margin-left: auto; margin-right: auto; }

  /* Mobile timeline: back to left-aligned */
  .timeline { padding-left: 24px; }
  .timeline::before { left: 7px; }
  .timeline-item { padding-left: 0; padding-right: 0; }
  .timeline-dot { position: relative; left: auto; margin-left: -31px; top: auto; }

  .about-grid { grid-template-columns: 1fr; gap: 48px; }
  .card-header { flex-direction: column; gap: 8px; }
  .card-date { align-self: flex-start; }
  .featured-inner { grid-template-columns: 1fr; }
  .featured-right { border-left: none; padding-left: 0; border-top: 1px solid var(--border); padding-top: 24px; }
  .projects-grid  { grid-template-columns: 1fr; }
  .project-featured { grid-column: auto; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .mobile-menu { display: block; }
  .container { padding: 0 24px; }
  #hero { padding: 100px 24px 80px; }
  footer { padding: 20px 24px; }
  .skills-grid { grid-template-columns: 1fr; }
  .contact-grid { flex-direction: column; align-items: center; }
  .contact-card { width: 100%; max-width: 380px; }
  .footer-inner { flex-direction: column; text-align: center; }
  .back-to-top { bottom: 20px; right: 20px; }
  .hero-stats { flex-wrap: wrap; row-gap: 16px; }
  .stat-divider { display: none; }
  .stat { padding: 0 16px; }
}