/* ═══════════════════════════════════════════
   DESIGN TOKENS
═══════════════════════════════════════════ */
:root {
  --ink: #060E1C;
  --ink-2: #0B1828;
  --ink-3: #0F2233;
  --border: #1A3553;
  --border-hi: #254D78;
  --lime: #00F083;
  --lime-dim: #00C469;
  --lime-faint: rgba(0, 240, 131, .07);
  --blue: #4B9EFF;
  --amber: #F5A623;
  --coral: #FF6B6B;
  --white: #EEF4FF;
  --slate: #6B8BAF;
  --slate-2: #4A6B90;
  --mono: 'JetBrains Mono', monospace;
  --sans: 'Inter', sans-serif;
  --display: 'Space Grotesk', sans-serif;
  --ease: cubic-bezier(.4, 0, .2, 1);
  --r: 6px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background: var(--ink);
  color: var(--white);
  font-family: var(--sans);
  line-height: 1.7;
  overflow-x: hidden;
}

/* ── Subtle dot grid ── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: radial-gradient(rgba(0, 240, 131, .06) 1px, transparent 1px);
  background-size: 32px 32px;
  pointer-events: none;
  z-index: 0;
}

/* ── Ambient glow ── */
body::after {
  content: '';
  position: fixed;
  width: 700px;
  height: 700px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 240, 131, .04) 0%, transparent 70%);
  top: -200px;
  right: -200px;
  pointer-events: none;
  z-index: 0;
}

::-webkit-scrollbar {
  width: 3px;
}

::-webkit-scrollbar-track {
  background: var(--ink);
}

::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 2px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--lime-dim);
}

/* ═══════════════════════════════════════════
   NAV
═══════════════════════════════════════════ */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.1rem 5rem;
  background: rgba(6, 14, 28, .9);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(26, 53, 83, .6);
  transition: padding .3s var(--ease);
}


nav.scrolled {
  padding: .75rem 5rem;
}

.nav-logo {
  font-family: var(--mono);
  font-size: .85rem;
  color: var(--lime);
  text-decoration: none;
  letter-spacing: .06em;
  display: flex;
  align-items: center;
  gap: .5rem;
}

.nav-logo span {
  color: var(--white);
  opacity: .6;
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  font-family: var(--mono);
  font-size: .7rem;
  color: var(--slate);
  text-decoration: none;
  letter-spacing: .12em;
  text-transform: uppercase;
  transition: color .25s;
  padding-bottom: 2px;
  border-bottom: 1px solid transparent;
}

.nav-links a:hover {
  color: var(--lime);
  border-color: var(--lime);
}

.nav-cta {
  font-family: var(--mono);
  font-size: .7rem;
  color: var(--lime);
  border: 1px solid var(--lime);
  padding: .45rem 1.2rem;
  text-decoration: none;
  letter-spacing: .1em;
  text-transform: uppercase;
  border-radius: var(--r);
  transition: all .25s;
}

.nav-cta:hover {
  background: var(--lime);
  color: var(--ink);
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
}

.hamburger span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--white);
  transition: all .3s;
}

/* ═══════════════════════════════════════════
   MOBILE MENU
═══════════════════════════════════════════ */
.mobile-nav {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--ink);
  z-index: 200;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2rem;
}

.mobile-nav.open {
  display: flex;
}

.mobile-nav a {
  font-family: var(--mono);
  font-size: 1.2rem;
  color: var(--white);
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: .12em;
  transition: color .2s;
}

.mobile-nav a:hover {
  color: var(--lime);
}

.mobile-nav-close {
  position: absolute;
  top: 1.5rem;
  right: 2rem;
  background: none;
  border: none;
  color: var(--white);
  font-size: 1.25rem;
  cursor: pointer;
}

/* ═══════════════════════════════════════════
   HERO
═══════════════════════════════════════════ */
#hero {
  position: relative;
  z-index: 10;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 8rem 5rem 4rem;
}

.hero-inner {
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 5rem;
  align-items: center;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  font-family: var(--mono);
  font-size: .68rem;
  color: var(--lime);
  letter-spacing: .18em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}

.hero-tag::before {
  content: '';
  width: 24px;
  height: 1px;
  background: var(--lime);
}

.hero-name {
  font-family: var(--display);
  font-size: clamp(3rem, 6vw, 5rem);
  font-weight: 700;
  line-height: 1.02;
  letter-spacing: -.03em;
  margin-bottom: .6rem;
}

.hero-name .accent {
  background: linear-gradient(135deg, var(--lime) 0%, var(--blue) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-role {
  font-size: clamp(1rem, 1.8vw, 1.25rem);
  color: var(--slate);
  font-weight: 400;
  margin-bottom: 1.75rem;
  line-height: 1.5;
}

.hero-role strong {
  color: var(--blue);
  font-weight: 600;
}

.hero-desc {
  font-size: .95rem;
  color: var(--slate);
  max-width: 520px;
  line-height: 1.85;
  margin-bottom: 2.5rem;
}

.hero-desc em {
  color: var(--white);
  font-style: normal;
}

.hero-actions {
  display: flex;
  gap: .875rem;
  flex-wrap: wrap;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  background: var(--lime);
  color: var(--ink);
  font-family: var(--mono);
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  text-decoration: none;
  padding: .85rem 1.75rem;
  border-radius: var(--r);
  border: 1px solid var(--lime);
  transition: all .25s;
}

.btn-primary:hover {
  background: transparent;
  color: var(--lime);
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  background: transparent;
  color: var(--white);
  font-family: var(--mono);
  font-size: .72rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  text-decoration: none;
  padding: .85rem 1.75rem;
  border-radius: var(--r);
  border: 1px solid var(--border);
  transition: all .25s;
}

.btn-ghost:hover {
  border-color: var(--slate);
  color: var(--white);
}

/* Resume Dropdown */
.resume-dropdown-wrap {
  position: relative;
  display: inline-block;
}

.resume-dropdown {
  position: absolute;
  top: calc(100% + 10px);
  left: 0;
  background: rgba(11, 24, 40, .95);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: .5rem;
  min-width: 210px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all .3s var(--ease);
  z-index: 100;
  backdrop-filter: blur(10px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, .5);
}

.resume-dropdown.open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.rd-item {
  display: flex;
  align-items: center;
  gap: .6rem;
  padding: .75rem 1rem;
  color: var(--slate);
  font-size: .85rem;
  text-decoration: none;
  border-radius: 6px;
  transition: all .2s;
}

.rd-item i {
  color: var(--lime);
  width: 16px;
  text-align: center;
}

.rd-item:hover {
  background: var(--ink-3);
  color: var(--white);
}

/* ── Hero right panel ── */
.hero-panel {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.profile-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 1;
  max-width: 300px;
  margin: 0 auto;
}

.profile-ring {
  position: absolute;
  inset: -10px;
  border: 1px solid rgba(0, 240, 131, .25);
  border-radius: 12px;
  animation: ring-pulse 5s ease-in-out infinite;
}

.profile-ring-2 {
  position: absolute;
  inset: -20px;
  border: 1px solid rgba(0, 240, 131, .1);
  border-radius: 16px;
  animation: ring-pulse 5s ease-in-out infinite .8s;
}

@keyframes ring-pulse {

  0%,
  100% {
    opacity: .3;
    transform: scale(1);
  }

  50% {
    opacity: .7;
    transform: scale(1.015);
  }
}

.profile-img {
  width: 100%;
  height: 100%;
  border-radius: 8px;
  object-fit: cover;
  border: 1px solid var(--border);
  position: relative;
  z-index: 2;
}

.profile-placeholder {
  width: 100%;
  height: 100%;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--ink-3), var(--ink-2));
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  font-family: var(--mono);
  font-size: .65rem;
  color: var(--slate);
  letter-spacing: .1em;
}

.profile-placeholder i {
  font-size: 2.5rem;
  color: var(--border-hi);
  margin-bottom: .5rem;
}



/* stat bar */
.stat-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--border);
  border-radius: var(--r);
  overflow: hidden;
}

.stat-cell {
  padding: .875rem 1rem;
  border-right: 1px solid var(--border);
  text-align: center;
  background: var(--ink-2);
  transition: background .25s;
}

.stat-cell:last-child {
  border-right: none;
}

.stat-cell:hover {
  background: var(--ink-3);
}

.stat-n {
  font-family: var(--mono);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--lime);
  display: block;
  line-height: 1;
  margin-bottom: .2rem;
}

.stat-l {
  font-family: var(--mono);
  font-size: .58rem;
  color: var(--slate);
  letter-spacing: .08em;
  text-transform: uppercase;
  line-height: 1.4;
  display: block;
}

/* ═══════════════════════════════════════════
   SECTION BASE
═══════════════════════════════════════════ */
section {
  position: relative;
  z-index: 1;
  padding: 7rem 5rem;
}

.section-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.s-label {
  font-family: var(--mono);
  font-size: .65rem;
  color: var(--lime);
  letter-spacing: .2em;
  text-transform: uppercase;
  margin-bottom: .75rem;
  display: flex;
  align-items: center;
  gap: .75rem;
}

.s-label::after {
  content: '';
  flex: 1;
  max-width: 48px;
  height: 1px;
  background: var(--lime);
  opacity: .4;
}

.s-title {
  font-family: var(--display);
  font-size: clamp(2rem, 3.5vw, 2.75rem);
  font-weight: 700;
  letter-spacing: -.025em;
  margin-bottom: .875rem;
  line-height: 1.15;
}

.s-sub {
  font-size: .95rem;
  color: var(--slate);
  max-width: 580px;
  margin-bottom: 4rem;
  line-height: 1.8;
}

/* ═══════════════════════════════════════════
   ABOUT
═══════════════════════════════════════════ */
#about {
  background: var(--ink-2);
}

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

.about-bio p {
  color: var(--slate);
  margin-bottom: .875rem;
  line-height: 1.9;
  font-size: .95rem;
}

.about-bio p em {
  color: var(--white);
  font-style: normal;
}

.award-chips {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin-top: 1.5rem;
}

.award-chip {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  background: rgba(245, 166, 35, .08);
  border: 1px solid rgba(245, 166, 35, .28);
  color: var(--amber);
  font-family: var(--mono);
  font-size: .65rem;
  padding: .3rem .7rem;
  border-radius: 4px;
  letter-spacing: .04em;
}

/* skills */
.skills-stack {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.skill-block {
  background: var(--ink);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 1.1rem 1.25rem;
  transition: border-color .25s;
}

.skill-block:hover {
  border-color: var(--border-hi);
}

.sk-cat {
  font-family: var(--mono);
  font-size: .6rem;
  color: var(--lime);
  letter-spacing: .14em;
  text-transform: uppercase;
  margin-bottom: .7rem;
}

.sk-tags {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
}

.sk-tag {
  font-family: var(--mono);
  font-size: .67rem;
  color: var(--slate);
  background: var(--ink-2);
  border: 1px solid var(--border);
  padding: .2rem .55rem;
  border-radius: 3px;
  transition: all .2s;
  cursor: default;
}

.sk-tag:hover {
  border-color: var(--lime);
  color: var(--lime);
}

/* ═══════════════════════════════════════════
   EXPERIENCE
═══════════════════════════════════════════ */
#experience {
  background: var(--ink);
}

.timeline {
  display: flex;
  flex-direction: column;
  border-left: 1px solid var(--border);
  margin-left: .75rem;
  padding-left: 2.5rem;
  gap: 0;
}

.t-item {
  position: relative;
  padding-bottom: 3rem;
}

.t-item:last-child {
  padding-bottom: 0;
}

.t-dot {
  position: absolute;
  left: -2.75rem;
  top: .6rem;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--border);
  border: 2px solid var(--border);
  transition: all .3s;
}

.t-item:hover .t-dot {
  background: var(--lime);
  border-color: var(--lime);
  box-shadow: 0 0 14px rgba(0, 240, 131, .4);
}

.t-period {
  font-family: var(--mono);
  font-size: .67rem;
  color: var(--lime);
  letter-spacing: .1em;
  margin-bottom: .35rem;
}

.t-role {
  font-family: var(--display);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: .2rem;
}

.t-company {
  font-size: .875rem;
  color: var(--blue);
  margin-bottom: .875rem;
  font-weight: 500;
}

.t-desc {
  color: var(--slate);
  font-size: .9rem;
  line-height: 1.8;
  margin-bottom: 1rem;
  max-width: 680px;
}

.t-bullets {
  display: flex;
  flex-direction: column;
  gap: .4rem;
  margin-bottom: 1rem;
}

.t-bullet {
  position: relative;
  padding-left: 1.1rem;
  font-size: .875rem;
  color: var(--slate);
  margin-bottom: 0.2rem;
}

.t-bullet::before {
  content: '▸';
  color: var(--lime);
  font-size: .65rem;
  position: absolute;
  left: 0;
  top: .38rem;
}

.t-bullet strong {
  color: var(--white);
}

.t-stack {
  display: flex;
  flex-wrap: wrap;
  gap: .35rem;
}

.t-pill {
  font-family: var(--mono);
  font-size: .62rem;
  color: var(--lime-dim);
  border: 1px solid rgba(0, 196, 105, .25);
  padding: .18rem .5rem;
  border-radius: 3px;
  letter-spacing: .04em;
}

/* ═══════════════════════════════════════════
   PROJECTS
═══════════════════════════════════════════ */
#projects {
  background: var(--ink-2);
}

.proj-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 1.25rem;
}

.proj-card {
  background: var(--ink);
  border: 1px solid var(--border);
  border-radius: var(--r);
  display: flex;
  flex-direction: column;
  transition: all .3s var(--ease);
  position: relative;
  overflow: hidden;
}

.proj-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--lime), transparent);
  opacity: 0;
  transition: opacity .3s;
}

.proj-card:hover {
  border-color: var(--border-hi);
  transform: translateY(-4px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, .4);
}

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

.proj-card.featured {
  border-color: rgba(0, 240, 131, .2);
  background: linear-gradient(145deg, var(--ink) 0%, var(--ink-3) 100%);
}

.proj-card.featured::after {
  opacity: .5;
}


.proj-content {
  padding: 1.875rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.proj-img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-bottom: 1px solid var(--border);
  transition: transform .3s var(--ease);
}

.proj-img-wrap {
  overflow: hidden;
  border-radius: var(--r) var(--r) 0 0;
}

.proj-card:hover .proj-img {
  transform: scale(1.05);
}

.proj-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 1.25rem;
}

.proj-icon {
  width: 42px;
  height: 42px;
  background: var(--lime-faint);
  border: 1px solid rgba(0, 240, 131, .18);
  border-radius: var(--r);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  color: var(--lime);
}

.proj-meta {
  display: flex;
  flex-direction: column;
  gap: .3rem;
  align-items: flex-end;
}

.proj-badge {
  font-family: var(--mono);
  font-size: .58rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  padding: .18rem .5rem;
  border-radius: 3px;
}

.badge-feat {
  background: rgba(245, 166, 35, .1);
  color: var(--amber);
  border: 1px solid rgba(245, 166, 35, .3);
}

.badge-live {
  background: rgba(0, 240, 131, .08);
  color: var(--lime);
  border: 1px solid rgba(0, 240, 131, .25);
}

.badge-research {
  background: rgba(75, 158, 255, .1);
  color: var(--blue);
  border: 1px solid rgba(75, 158, 255, .25);
}

.badge-oss {
  background: rgba(255, 107, 107, .1);
  color: var(--coral);
  border: 1px solid rgba(255, 107, 107, .25);
}

.badge-done {
  background: rgba(107, 139, 175, .1);
  color: var(--slate);
  border: 1px solid rgba(107, 139, 175, .25);
}

.proj-links-row {
  display: flex;
  gap: .4rem;
}

.proj-link-btn {
  width: 30px;
  height: 30px;
  border: 1px solid var(--border);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--slate);
  text-decoration: none;
  font-size: .8rem;
  transition: all .2s;
}

.proj-link-btn:hover {
  border-color: var(--lime);
  color: var(--lime);
}

.proj-name {
  font-family: var(--display);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: .6rem;
}

.proj-desc {
  font-size: .875rem;
  color: var(--slate);
  line-height: 1.75;
  margin-bottom: 1.1rem;
  flex: 1;
}

.proj-metrics {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.1rem;
  padding-bottom: 1.1rem;
  border-bottom: 1px solid var(--border);
}

.metric {
  text-align: center;
}

.metric-v {
  font-family: var(--mono);
  font-size: .95rem;
  font-weight: 700;
  color: var(--lime);
  display: block;
  line-height: 1;
  margin-bottom: .2rem;
}

.metric-k {
  font-family: var(--mono);
  font-size: .58rem;
  color: var(--slate);
  letter-spacing: .06em;
  text-transform: uppercase;
}

.proj-tags {
  display: flex;
  flex-wrap: wrap;
  gap: .35rem;
}

.proj-tag {
  font-family: var(--mono);
  font-size: .6rem;
  color: var(--lime-dim);
  border: 1px solid rgba(0, 196, 105, .22);
  padding: .17rem .48rem;
  border-radius: 3px;
}

/* highlights block */
.proj-highlights {
  margin-bottom: 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}

.ph-label {
  font-family: var(--mono);
  font-size: .58rem;
  color: var(--lime);
  letter-spacing: .12em;
  text-transform: uppercase;
  margin-bottom: .5rem;
}

.ph-items {
  display: flex;
  flex-wrap: wrap;
  gap: .35rem;
}

.ph-item {
  font-size: .62rem;
  color: var(--slate);
  background: var(--ink-2);
  border: 1px solid var(--border);
  padding: .18rem .5rem;
  border-radius: 3px;
  font-family: var(--mono);
}

/* ═══════════════════════════════════════════
   IMPACT STRIP
═══════════════════════════════════════════ */
#impact {
  background: var(--ink);
  padding: 4rem 5rem;
}

.impact-strip {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  border: 1px solid var(--border);
  border-radius: var(--r);
  overflow: hidden;
}

.impact-cell {
  padding: 2.25rem 1.5rem;
  background: var(--ink-2);
  text-align: center;
  border-right: 1px solid var(--border);
  transition: background .25s;
}

.impact-cell:last-child {
  border-right: none;
}

.impact-cell:hover {
  background: var(--ink-3);
}

.impact-n {
  font-family: var(--mono);
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--lime);
  display: block;
  line-height: 1;
  margin-bottom: .4rem;
}

.impact-d {
  font-size: .8rem;
  color: var(--slate);
  line-height: 1.4;
}

.impact-d strong {
  color: var(--white);
  display: block;
  margin-bottom: .15rem;
  font-size: .8rem;
}

/* ═══════════════════════════════════════════
   MOBILE
═══════════════════════════════════════════ */
#mobile {
  background: var(--ink-2);
}

.mobile-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.mobile-intro {
  font-size: .95rem;
  color: var(--slate);
  line-height: 1.85;
  margin-bottom: 2rem;
}

.m-cards {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.m-card {
  background: var(--ink);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 1.25rem 1.35rem;
  display: flex;
  gap: .875rem;
  align-items: flex-start;
  transition: border-color .25s;
}

.m-card:hover {
  border-color: var(--blue);
}

.m-card-icon {
  width: 38px;
  height: 38px;
  background: rgba(75, 158, 255, .1);
  border: 1px solid rgba(75, 158, 255, .2);
  border-radius: var(--r);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--blue);
  font-size: 1rem;
  flex-shrink: 0;
}

.m-card-body h4 {
  font-family: var(--display);
  font-size: .95rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: .3rem;
}

.m-card-body p {
  font-size: .85rem;
  color: var(--slate);
  line-height: 1.65;
}

/* mobile preview */
.mobile-images {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 480px;
}

.mobile-img {
  position: absolute;
  border-radius: 16px;
  max-width: 220px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
  transition: transform 0.4s var(--ease);
}

.img-back {
  transform: translate(-30px, -20px) scale(0.85);
  z-index: 1;
  opacity: 0.7;
}

.img-front {
  transform: translate(30px, 20px);
  z-index: 2;
}

.mobile-images:hover .img-back {
  transform: translate(-40px, -30px) scale(0.9);
  opacity: 1;
}

.mobile-images:hover .img-front {
  transform: translate(40px, 10px) scale(1.02);
}

/* ═══════════════════════════════════════════
   LEADERSHIP
═══════════════════════════════════════════ */
#leadership {
  background: var(--ink);
}

.lead-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.25rem;
}

.lead-card {
  background: var(--ink-2);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 1.625rem;
  transition: all .25s;
}

.lead-card:hover {
  border-color: var(--border-hi);
  transform: translateY(-2px);
}

.lead-icon {
  margin-bottom: 1.2rem;
  display: flex;
  align-items: center;
  height: 48px;
}

.lead-icon img {
  max-height: 100%;
  max-width: 140px;
  width: auto;
  object-fit: contain;
  border-radius: 4px;
}

.lead-role {
  font-family: var(--display);
  font-size: .975rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: .2rem;
}

.lead-org {
  font-family: var(--mono);
  font-size: .65rem;
  color: var(--lime);
  letter-spacing: .08em;
  margin-bottom: .75rem;
}

.lead-desc {
  font-size: .85rem;
  color: var(--slate);
  line-height: 1.7;
}

/* ═══════════════════════════════════════════
   EDUCATION
═══════════════════════════════════════════ */
#education {
  background: var(--ink-2);
}

.edu-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
}

.edu-card {
  background: var(--ink);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 1.875rem;
  margin-bottom: 1rem;
}

.edu-period {
  font-family: var(--mono);
  font-size: .65rem;
  color: var(--slate);
  letter-spacing: .08em;
  margin-bottom: .35rem;
}

.edu-degree {
  font-family: var(--display);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: .25rem;
}

.edu-school {
  font-size: .875rem;
  color: var(--blue);
  margin-bottom: .4rem;
}

.edu-detail {
  font-family: var(--mono);
  font-size: .67rem;
  color: var(--slate);
  letter-spacing: .05em;
  margin-bottom: .2rem;
}

.gpa-badge {
  display: inline-block;
  font-family: var(--mono);
  font-size: .68rem;
  color: var(--amber);
  background: rgba(245, 166, 35, .08);
  border: 1px solid rgba(245, 166, 35, .25);
  padding: .2rem .6rem;
  border-radius: 4px;
  margin-top: .5rem;
}

.certs {
  display: flex;
  flex-direction: column;
  gap: .625rem;
}

.cert-row {
  display: flex;
  align-items: flex-start;
  gap: .75rem;
  padding: .875rem 1rem;
  background: var(--ink);
  border: 1px solid var(--border);
  border-radius: var(--r);
  transition: border-color .2s;
}

.cert-row:hover {
  border-color: var(--border-hi);
}

.cert-row i {
  color: var(--lime);
  margin-top: .1rem;
  flex-shrink: 0;
  font-size: .875rem;
}

.cert-row strong {
  display: block;
  color: var(--white);
  font-size: .875rem;
  margin-bottom: .1rem;
}

.cert-row span {
  font-family: var(--mono);
  font-size: .62rem;
  color: var(--slate);
  letter-spacing: .05em;
}

/* ═══════════════════════════════════════════
   CONTACT
═══════════════════════════════════════════ */
#contact {
  background: var(--ink);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: start;
}

.contact-intro {
  font-size: .95rem;
  color: var(--slate);
  line-height: 1.85;
  margin-bottom: 2rem;
}

.contact-list {
  display: flex;
  flex-direction: column;
  gap: .875rem;
  margin-bottom: 2rem;
}

.contact-row {
  display: flex;
  align-items: center;
  gap: .875rem;
  font-size: .9rem;
  color: var(--slate);
}

.contact-row a {
  color: var(--slate);
  text-decoration: none;
  transition: color .2s;
}

.contact-row a:hover {
  color: var(--lime);
}

.c-icon {
  width: 34px;
  height: 34px;
  background: var(--ink-2);
  border: 1px solid var(--border);
  border-radius: var(--r);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--lime);
  font-size: .85rem;
  flex-shrink: 0;
}

.socials {
  display: flex;
  gap: .625rem;
  margin-top: 1.5rem;
}

.social-btn {
  width: 42px;
  height: 42px;
  border: 1px solid var(--border);
  border-radius: var(--r);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--slate);
  text-decoration: none;
  font-size: 1rem;
  transition: all .25s;
}

.social-btn:hover {
  border-color: var(--lime);
  color: var(--lime);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: .875rem;
}

.form-row-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: .875rem;
}

.f-group {
  display: flex;
  flex-direction: column;
  gap: .35rem;
}

.f-group label {
  font-family: var(--mono);
  font-size: .62rem;
  color: var(--slate);
  letter-spacing: .1em;
  text-transform: uppercase;
}

.f-group input,
.f-group textarea {
  background: var(--ink-2);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: .7rem .9rem;
  color: var(--white);
  font-family: var(--sans);
  font-size: .9rem;
  outline: none;
  resize: none;
  transition: border-color .25s;
}

.f-group input:focus,
.f-group textarea:focus {
  border-color: var(--lime);
}

.f-group input::placeholder,
.f-group textarea::placeholder {
  color: var(--slate-2);
}

.form-msg {
  font-family: var(--mono);
  font-size: .72rem;
  color: var(--lime);
  margin-top: .25rem;
  display: none;
}

/* ═══════════════════════════════════════════
   FOOTER
═══════════════════════════════════════════ */
footer {
  background: var(--ink-2);
  border-top: 1px solid var(--border);
  padding: 1.875rem 5rem;
  text-align: center;
  font-family: var(--mono);
  font-size: .67rem;
  color: var(--slate);
  letter-spacing: .06em;
  position: relative;
  z-index: 1;
}

footer a {
  color: var(--lime);
  text-decoration: none;
}

/* ═══════════════════════════════════════════
   REVEAL
═══════════════════════════════════════════ */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity .6s var(--ease), transform .6s var(--ease);
}

.reveal.in {
  opacity: 1;
  transform: none;
}

.d1 {
  transition-delay: .1s;
}

.d2 {
  transition-delay: .2s;
}

.d3 {
  transition-delay: .3s;
}

.d4 {
  transition-delay: .4s;
}

/* ═══════════════════════════════════════════
   GLOBAL OVERFLOW GUARD
═══════════════════════════════════════════ */
/* Prevent ANY element from blowing out the horizontal viewport */
* {
  min-width: 0;
}

/* Bullet text wrapping is now handled via position:relative on the parent. */
.t-bullet {
  line-height: 1.7;
}

/* t-desc: remove desktop max-width so it doesn't constrain on small viewports */
.t-desc {
  max-width: 100%;
}

/* ═══════════════════════════════════════════
   RESPONSIVE — TABLET  ≤ 1100px
═══════════════════════════════════════════ */
@media (max-width: 1100px) {

  /* nav */
  nav {
    padding: 1rem 2rem;
  }

  nav.scrolled {
    padding: .75rem 2rem;
  }

  .nav-links {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  /* sections */
  section {
    padding: 5rem 2rem;
  }

  #hero {
    padding: 6.5rem 2rem 3rem;
  }

  #impact {
    padding: 3.5rem 2rem;
  }

  footer {
    padding: 1.5rem 2rem;
  }

  /* hero */
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .hero-panel {
    margin-top: 2rem;
  }

  .stat-bar {
    grid-template-columns: 1fr 1fr;
  }

  .stat-cell:nth-child(2) {
    border-right: none;
  }

  .stat-cell:nth-child(n+3) {
    border-top: 1px solid var(--border);
  }

  /* grids → single column */
  .about-grid,
  .mobile-grid,
  .contact-grid,
  .edu-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  /* impact strip → 3 cols */
  .impact-strip {
    grid-template-columns: repeat(3, 1fr);
  }

  .impact-cell:nth-child(3) {
    border-right: none;
  }

  .impact-cell:nth-child(4) {
    border-top: 1px solid var(--border);
    border-right: 1px solid var(--border);
  }

  .impact-cell:nth-child(5) {
    border-top: 1px solid var(--border);
    border-right: none;
  }

  /* timeline: reduce left gutter so dot+line don't eat padding */
  .timeline {
    margin-left: .5rem;
    padding-left: 2rem;
  }

  .t-dot {
    left: -2.25rem;
  }
}

/* ═══════════════════════════════════════════
   RESPONSIVE — MOBILE  ≤ 768px
═══════════════════════════════════════════ */
@media (max-width: 768px) {

  /* nav */
  nav {
    padding: .875rem 1.25rem;
  }

  nav.scrolled {
    padding: .6rem 1.25rem;
  }


  /* sections */
  section {
    padding: 4rem 1.25rem;
  }

  #hero {
    padding: 5.5rem 1.25rem 2.5rem;
  }

  #impact {
    padding: 2.5rem 1.25rem;
  }

  footer {
    padding: 1.25rem 1.25rem;
  }

  /* typography scale-down */
  .hero-name {
    font-size: clamp(2rem, 8vw, 2.75rem);
  }

  .hero-role {
    font-size: 1rem;
  }

  .hero-desc {
    font-size: .9rem;
  }

  .s-title {
    font-size: clamp(1.6rem, 6vw, 2.25rem);
  }

  .s-sub {
    font-size: .875rem;
    margin-bottom: 2.5rem;
  }

  /* hero buttons stack nicely */
  .hero-actions {
    flex-direction: column;
    align-items: flex-start;
    gap: .625rem;
  }

  .btn-primary,
  .btn-ghost {
    width: 100%;
    justify-content: center;
    padding: .875rem 1.25rem;
  }

  /* timeline: tighter on mobile */
  .timeline {
    margin-left: 0;
    padding-left: 1.5rem;
  }

  .t-dot {
    left: -1.85rem;
    width: 9px;
    height: 9px;
  }

  .t-role {
    font-size: 1.05rem;
  }

  .t-desc {
    font-size: .875rem;
  }

  .t-stack {
    gap: .3rem;
  }

  .t-pill {
    font-size: .6rem;
  }

  /* bullets */
  .t-bullet {
    font-size: .825rem;
  }

  .t-bullet::before {
    top: .32rem;
  }

  /* projects → 1 col */
  .proj-grid {
    grid-template-columns: 1fr;
  }

  .proj-content {
    padding: 1.375rem;
  }

  /* impact → 2×3 grid */
  .impact-strip {
    grid-template-columns: 1fr 1fr;
  }

  /* reset all borders first, then set consistently */
  .impact-cell {
    border-right: none !important;
    border-top: none !important;
    border-bottom: none !important;
    border-left: none !important;
    padding: 1.5rem 1rem;
  }

  .impact-cell:nth-child(odd) {
    border-right: 1px solid var(--border) !important;
  }

  .impact-cell:nth-child(n+3) {
    border-top: 1px solid var(--border) !important;
  }

  .impact-n {
    font-size: 1.75rem;
  }

  .impact-d {
    font-size: .75rem;
  }

  /* mobile section preview */
  .mobile-images {
    min-height: 420px;
    margin-top: 2.5rem;
  }

  .mobile-img {
    max-width: 180px;
  }

  .img-back {
    transform: translate(-20px, -15px) scale(0.85);
  }

  .img-front {
    transform: translate(20px, 15px);
  }

  /* skills tags wrap fine but reduce padding */
  .sk-tag {
    font-size: .62rem;
    padding: .18rem .45rem;
  }

  /* leadership grid → 1 col on small */
  .lead-grid {
    grid-template-columns: 1fr;
  }

  /* education */
  .edu-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .edu-card {
    padding: 1.375rem;
  }

  /* contact form */
  .form-row-2 {
    grid-template-columns: 1fr;
  }

  .contact-grid {
    gap: 2rem;
  }

  .f-group input,
  .f-group textarea {
    font-size: .875rem;
  }

  /* award chips wrap */
  .award-chip {
    font-size: .6rem;
    padding: .25rem .55rem;
  }

  /* section label */
  .s-label {
    font-size: .6rem;
  }
}

/* ═══════════════════════════════════════════
   RESPONSIVE — SMALL PHONE  ≤ 390px
═══════════════════════════════════════════ */
@media (max-width: 390px) {
  section {
    padding: 3.5rem 1rem;
  }

  #hero {
    padding: 5rem 1rem 2rem;
  }

  #impact {
    padding: 2rem 1rem;
  }

  footer {
    padding: 1rem;
  }

  .hero-name {
    font-size: 2rem;
  }

  .s-title {
    font-size: 1.5rem;
  }

  nav {
    padding: .75rem 1rem;
  }

  /* impact → full-width single col on very small */
  .impact-strip {
    grid-template-columns: 1fr;
  }

  .impact-cell {
    border-right: none !important;
  }

  .impact-cell:nth-child(n+2) {
    border-top: 1px solid var(--border) !important;
  }

  /* floating badges hidden */
  .fbadge {
    display: none;
  }

  /* timeline even tighter */
  .timeline {
    padding-left: 1.25rem;
  }

  .t-dot {
    left: -1.6rem;
  }

  .proj-content {
    padding: 1.125rem;
  }
}

/* ─── focus / a11y ─── */
:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {

  *,
  *::before,
  *::after {
    transition: none !important;
    animation: none !important;
  }
}