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

:root {
  --bg:       #0e0f14;
  --bg2:      #13151d;
  --bg3:      #1a1d27;
  --cyan:     #00e5ff;
  --purple:   #a855f7;
  --orange:   #f97316;
  --green:    #10b981;
  --text:     #e8eaf0;
  --dim:      #8892a4;
  --border:   rgba(255,255,255,0.08);
  --font:     'Space Grotesk', sans-serif;
  --mono:     'JetBrains Mono', monospace;
}

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

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

a { color: inherit; text-decoration: none; }
.accent        { color: var(--cyan); }
.accent-purple { color: var(--purple); }
.accent-orange { color: var(--orange); }

/* ============================================================
   AMBIENT CANVAS
============================================================ */
#neural-canvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.25;
}

/* ============================================================
   NAVBAR
============================================================ */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 150;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 48px;
  transition: background 0.3s, backdrop-filter 0.3s, border-bottom 0.3s;
}
#navbar.solid {
  background: rgba(14,15,20,0.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}

.nav-brand {
  font-family: var(--mono);
  font-size: 1.2rem;
  font-weight: 400;
  color: var(--text);
  letter-spacing: -0.02em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}
.nav-links a {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--dim);
  transition: color 0.2s;
  position: relative;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -3px; left: 0;
  width: 0; height: 1px;
  background: var(--cyan);
  transition: width 0.3s;
}
.nav-links a:hover,
.nav-links a.active { color: var(--text); }
.nav-links a:hover::after,
.nav-links a.active::after { width: 100%; }

.nav-num {
  font-size: 0.56rem;
  color: var(--cyan);
  opacity: 0.8;
}
.nav-slash { font-family: var(--mono); }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
}
.hamburger span {
  display: block;
  width: 22px; height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: 0.3s;
}

/* MOBILE MENU */
.mobile-menu {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: var(--bg);
  z-index: 140;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 32px;
}
.mobile-menu.open { display: flex; }
.mobile-link {
  font-family: var(--mono);
  font-size: 1.2rem;
  color: var(--dim);
  transition: color 0.2s;
}
.mobile-link .nav-num { color: var(--cyan); margin-right: 8px; }
.mobile-link:hover { color: var(--text); }

/* ============================================================
   SECTIONS — shared
============================================================ */
section {
  position: relative;
  z-index: 1;
  padding: 120px 48px;
  max-width: 1280px;
  margin: 0 auto;
}

section#home { max-width: 100%; padding-left: 0; padding-right: 0; }

.section-header { margin-bottom: 72px; }
.section-label {
  display: inline-block;
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--cyan);
  letter-spacing: 0.12em;
  margin-bottom: 16px;
}
.section-title {
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
  color: var(--text);
}
.underline-accent  { color: var(--cyan); }
.underline-purple  { color: var(--purple); }
.underline-green   { color: var(--green); }

/* ============================================================
   HERO
============================================================ */
#home {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  padding: 120px 10vw 80px;
  position: relative;
  overflow: hidden;
}

/* ============
   HERO SCENE — sun orb + geometric shapes
============ */
.hero-scene {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

/* The glowing sun */
.sun-orb {
  position: absolute;
  top: 20%; right: 22%;
  width: 52px; height: 52px;
  border-radius: 50%;
  background: radial-gradient(circle at 40% 40%, #ffb347, #ff6a00 60%, #c43b00);
  box-shadow:
    0 0 40px 16px rgba(255,120,0,0.45),
    0 0 100px 40px rgba(255,80,0,0.2),
    0 0 200px 80px rgba(255,60,0,0.08);
  animation: sun-pulse 4s ease-in-out infinite;
}
@keyframes sun-pulse {
  0%,100% { box-shadow: 0 0 40px 16px rgba(255,120,0,0.45), 0 0 100px 40px rgba(255,80,0,0.2), 0 0 200px 80px rgba(255,60,0,0.08); }
  50%      { box-shadow: 0 0 50px 22px rgba(255,140,0,0.55), 0 0 130px 60px rgba(255,90,0,0.25), 0 0 260px 100px rgba(255,60,0,0.1); }
}

/* Ambient light cast from the sun */
.sun-light {
  position: absolute;
  top: -10%; right: 0;
  width: 70%; height: 120%;
  background: radial-gradient(ellipse at 65% 28%, rgba(255,100,20,0.12) 0%, rgba(255,70,0,0.05) 35%, transparent 65%);
  pointer-events: none;
}

/* Geometric shapes inspired by TamalSen.dev */
.geo {
  position: absolute;
  background: linear-gradient(135deg, rgba(255,255,255,0.06), rgba(255,255,255,0.01));
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 4px;
  transform-style: preserve-3d;
}
.geo-1 {
  width: 200px; height: 200px;
  top: 10%; right: 28%;
  transform: rotate(15deg) skewX(-8deg);
  background: linear-gradient(135deg, rgba(80,90,130,0.4), rgba(40,50,80,0.2));
  animation: geo-float 8s ease-in-out infinite;
}
.geo-2 {
  width: 150px; height: 150px;
  top: 40%; right: 16%;
  transform: rotate(-20deg) skewY(6deg);
  background: linear-gradient(135deg, rgba(100,70,40,0.45), rgba(60,40,20,0.2));
  animation: geo-float 10s ease-in-out 1s infinite;
}
.geo-3 {
  width: 120px; height: 120px;
  top: 60%; right: 35%;
  transform: rotate(30deg);
  background: linear-gradient(135deg, rgba(40,50,80,0.35), rgba(20,25,50,0.15));
  animation: geo-float 12s ease-in-out 2s infinite;
}
@keyframes geo-float {
  0%,100% { transform: rotate(15deg)  skewX(-8deg) translateY(0); }
  50%      { transform: rotate(15deg)  skewX(-8deg) translateY(-14px); }
}

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

.hero-greeting {
  font-family: var(--mono);
  font-size: 0.9rem;
  color: var(--cyan);
  letter-spacing: 0.2em;
  margin-bottom: 20px;
}

.hero-name {
  font-size: clamp(5rem, 13vw, 11rem);
  font-weight: 700;
  line-height: 0.9;
  letter-spacing: -0.04em;
  color: var(--text);
  margin-bottom: 32px;
}
.hero-name-outline {
  -webkit-text-stroke: 2px rgba(232,234,240,0.25);
  color: transparent;
}

.hero-tagline {
  font-family: var(--mono);
  font-size: clamp(0.8rem, 1.6vw, 1rem);
  color: var(--dim);
  letter-spacing: 0.08em;
  margin-bottom: 48px;
  height: 1.5em;
}
.cursor-blink {
  animation: blink 1s step-end infinite;
  color: var(--cyan);
}
@keyframes blink { 0%,100% { opacity:1; } 50% { opacity:0; } }

.hero-cta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.hero-proof {
  max-width: 680px;
  margin-top: 20px;
  color: var(--dim);
  font-family: var(--mono);
  font-size: 0.72rem;
  line-height: 1.7;
}
.btn-main {
  display: inline-flex;
  align-items: center;
  padding: 14px 32px;
  background: var(--cyan);
  color: #000;
  font-weight: 700;
  font-size: 0.9rem;
  border-radius: 6px;
  transition: transform 0.2s, box-shadow 0.2s;
}
.btn-main:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 32px rgba(0,229,255,0.3);
}
.btn-ghost {
  display: inline-flex;
  align-items: center;
  padding: 14px 32px;
  background: transparent;
  color: var(--text);
  font-size: 0.9rem;
  font-weight: 500;
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 6px;
  transition: border-color 0.2s, background 0.2s, transform 0.2s;
}
.btn-ghost:hover {
  border-color: rgba(255,255,255,0.3);
  background: rgba(255,255,255,0.05);
  transform: translateY(-3px);
}

.scroll-indicator {
  position: absolute;
  bottom: 36px; left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 0.6rem;
  color: var(--dim);
  letter-spacing: 0.15em;
}
.mouse-icon {
  width: 22px; height: 36px;
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 12px;
  display: flex;
  justify-content: center;
  padding-top: 6px;
}
.mouse-wheel {
  width: 3px; height: 8px;
  background: var(--cyan);
  border-radius: 2px;
  animation: scroll-wheel 2s ease-in-out infinite;
}
@keyframes scroll-wheel {
  0%   { transform: translateY(0); opacity: 1; }
  80%  { transform: translateY(10px); opacity: 0; }
  100% { transform: translateY(0); opacity: 0; }
}

/* ============================================================
   EXPERTISE
============================================================ */
.expertise-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.exp-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 36px;
  position: relative;
  overflow: hidden;
  transition: transform 0.3s, border-color 0.3s;
}
.exp-card::before {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 3px;
  background: var(--bar-color, var(--cyan));
  opacity: 0;
  transition: opacity 0.3s;
}
.exp-card:hover { transform: translateY(-6px); border-color: rgba(255,255,255,0.15); }
.exp-card:hover::before { opacity: 1; }
.exp-card:hover { --bar-color: inherit; }
#exp-ai:hover  { border-color: rgba(0,229,255,0.3); }
#exp-ml:hover  { border-color: rgba(168,85,247,0.3); }
#exp-backend:hover { border-color: rgba(249,115,22,0.3); }
#exp-web:hover { border-color: rgba(16,185,129,0.3); }

.exp-icon { font-size: 2.2rem; margin-bottom: 18px; }
.exp-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text);
}
.exp-card p { color: var(--dim); font-size: 0.92rem; line-height: 1.7; }
.exp-bar {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 3px;
  background: var(--bar-color);
  opacity: 0;
  transition: opacity 0.3s;
}
.exp-card:hover .exp-bar { opacity: 1; }

/* ============================================================
   PROJECTS — FEATURED
============================================================ */
.project-featured {
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 0;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 20px;
  overflow: hidden;
  margin-bottom: 32px;
  transition: transform 0.3s, border-color 0.3s;
}
.project-featured:hover {
  transform: translateY(-4px);
  border-color: rgba(255,255,255,0.15);
}
.project-priority { border-color: rgba(0,229,255,0.16); }
.proj-alt { grid-template-columns: 420px 1fr; }
.proj-alt .pf-visual { order: -1; }

.pf-info {
  padding: 52px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.pf-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
}
.pf-num {
  font-family: var(--mono);
  font-size: 0.68rem;
  color: var(--cyan);
  font-weight: 500;
}
.pf-domain {
  font-family: var(--mono);
  font-size: 0.68rem;
  color: var(--dim);
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  padding: 3px 10px;
  border-radius: 100px;
}
.pf-year {
  font-family: var(--mono);
  font-size: 0.65rem;
  color: var(--dim);
  margin-left: auto;
}
.pf-title {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
  line-height: 1.2;
  color: var(--text);
}
.pf-desc {
  color: var(--dim);
  font-size: 0.93rem;
  line-height: 1.8;
  margin-bottom: 24px;
  max-width: 480px;
}
.pf-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 32px;
}
.pf-tags span {
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--purple);
  background: rgba(168,85,247,0.08);
  border: 1px solid rgba(168,85,247,0.2);
  padding: 4px 12px;
  border-radius: 100px;
}
.pf-links { display: flex; align-items: center; gap: 20px; flex-wrap: wrap; }
.link-live {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 22px;
  background: var(--cyan);
  color: #000;
  font-weight: 700;
  font-size: 0.82rem;
  border-radius: 6px;
  transition: transform 0.2s, box-shadow 0.2s;
}
.link-live:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0,229,255,0.3);
}
.live-dot {
  width: 6px; height: 6px;
  background: #000;
  border-radius: 50%;
  animation: pulse-status 1.5s infinite;
}
.link-code {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--dim);
  transition: color 0.2s;
}
.link-code:hover { color: var(--text); }
.link-deep {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--cyan);
  border-bottom: 1px solid rgba(0,229,255,0.3);
  padding-bottom: 1px;
  transition: border-color 0.2s, opacity 0.2s;
}
.link-deep:hover { border-color: var(--cyan); opacity: 0.8; }
.project-status {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 7px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--dim);
  font-family: var(--mono);
  font-size: 0.68rem;
  line-height: 1.2;
}

/* Metrics row */
.pf-metrics {
  display: flex;
  gap: 24px;
  margin: 16px 0;
  padding: 16px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.metric { display: flex; flex-direction: column; gap: 2px; }
.metric-val {
  font-family: var(--mono);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--cyan);
  line-height: 1;
}
.metric-label {
  font-family: var(--mono);
  font-size: 0.6rem;
  color: var(--dim);
  letter-spacing: 0.06em;
}

/* PROJECT VISUALS */
.pf-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  min-height: 340px;
  background: var(--bg3);
  border-left: 1px solid var(--border);
}
.pf-visual-image {
  padding: 0;
  background: #11141b;
}
.pf-visual-image img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 340px;
  object-fit: cover;
  object-position: center;
}
.proj-alt .pf-visual { border-left: none; border-right: 1px solid var(--border); }
.pf-food .pf-visual  { border-left: 1px solid var(--border); }

.pf-glow {
  position: absolute;
  width: 240px; height: 240px;
  border-radius: 50%;
  filter: blur(70px);
  pointer-events: none;
}
.pf-glow.cyan   { background: rgba(0,229,255,0.15); }
.pf-glow.purple { background: rgba(168,85,247,0.15); }
.pf-glow.orange { background: rgba(249,115,22,0.12); }

/* Aegis Agent Nodes */
.agent-nodes {
  position: relative;
  width: 280px; height: 280px;
}
.aedges {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  overflow: visible;
}
.edge {
  stroke: rgba(0,229,255,0.2);
  stroke-width: 1;
  stroke-dasharray: 4 4;
  animation: dash-anim 3s linear infinite;
}
@keyframes dash-anim {
  from { stroke-dashoffset: 0; }
  to   { stroke-dashoffset: -30; }
}
.anode {
  position: absolute;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg2);
  border: 1px solid rgba(0,229,255,0.3);
  border-radius: 8px;
  font-family: var(--mono);
  font-size: 0.55rem;
  color: var(--cyan);
  letter-spacing: 0.08em;
  width: 60px; height: 32px;
  animation: node-float 4s ease-in-out infinite;
}
.anode.central {
  width: 72px; height: 72px;
  border-radius: 50%;
  font-size: 0.5rem;
  text-align: center;
  background: rgba(0,229,255,0.08);
  border-color: var(--cyan);
  box-shadow: 0 0 24px rgba(0,229,255,0.2);
  top: 50%; left: 50%;
  transform: translate(-50%,-50%);
  animation: central-pulse 2s ease-in-out infinite;
  z-index: 2;
}
@keyframes central-pulse {
  0%,100% { box-shadow: 0 0 24px rgba(0,229,255,0.2); }
  50%      { box-shadow: 0 0 40px rgba(0,229,255,0.4); }
}
@keyframes node-float {
  0%,100% { transform: translateY(0); }
  50%      { transform: translateY(-4px); }
}
.a1 { top: 4px;  left: 60px;  animation-delay: 0s; }
.a2 { top: 4px;  right: 20px; animation-delay: 0.5s; }
.a3 { bottom: 30px; left: 10px;  animation-delay: 1s; }
.a5 { bottom: 10px; right: 20px; animation-delay: 1.5s; }

/* Yield Visual */
.yield-visual {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  position: relative;
  z-index: 1;
}
.yield-label {
  font-family: var(--mono);
  font-size: 0.65rem;
  color: var(--purple);
  letter-spacing: 0.15em;
}
.yield-bars {
  display: flex;
  align-items: flex-end;
  gap: 10px;
  height: 110px;
}
.ybar {
  width: 28px;
  height: var(--h);
  background: linear-gradient(to top, var(--purple), rgba(168,85,247,0.3));
  border-radius: 4px 4px 0 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  align-items: center;
  padding-bottom: 4px;
  position: relative;
  animation: bar-breathe 3s ease-in-out infinite;
}
.ybar span {
  font-family: var(--mono);
  font-size: 0.42rem;
  color: rgba(168,85,247,0.7);
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  position: absolute;
  bottom: -28px;
  white-space: nowrap;
}
.ybar:nth-child(1) { animation-delay: 0s; }
.ybar:nth-child(2) { animation-delay: 0.2s; }
.ybar:nth-child(3) { animation-delay: 0.4s; }
.ybar:nth-child(4) { animation-delay: 0.6s; }
.ybar:nth-child(5) { animation-delay: 0.8s; }
@keyframes bar-breathe {
  0%,100% { transform: scaleY(1); }
  50%      { transform: scaleY(1.08); }
}
.yield-pred {
  font-family: var(--mono);
  font-size: 0.62rem;
  color: var(--green);
  margin-top: 32px;
  background: rgba(16,185,129,0.1);
  border: 1px solid rgba(16,185,129,0.2);
  padding: 4px 12px;
  border-radius: 100px;
}

/* Food Rings */
.food-visual {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  position: relative;
  z-index: 1;
}
.food-label {
  font-family: var(--mono);
  font-size: 0.65rem;
  color: var(--orange);
  letter-spacing: 0.15em;
}
.food-rings {
  position: relative;
  width: 150px; height: 150px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.fring {
  position: absolute;
  border-radius: 50%;
  border: 1.5px solid;
  animation: spin 10s linear infinite;
}
.fr1 { width:150px;height:150px; border-color:rgba(249,115,22,0.4); }
.fr2 { width:105px;height:105px; border-color:rgba(249,115,22,0.25); animation-direction:reverse; animation-duration:7s; }
.fr3 { width:65px;height:65px;   border-color:rgba(249,115,22,0.6); animation-duration:5s; }
@keyframes spin { to { transform: rotate(360deg); } }
.fring-center {
  position: absolute;
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--orange);
  font-weight: 600;
}

/* ============================================================
   EXPERIENCE / SKILLS
============================================================ */
.experience-ledger {
  display: grid;
  gap: 1px;
  margin-bottom: 32px;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--border);
}
.experience-entry {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 28px;
  padding: 28px 32px;
  background: var(--bg2);
}
.experience-when {
  color: var(--cyan);
  font-family: var(--mono);
  font-size: 0.7rem;
  line-height: 1.6;
}
.experience-entry h3 {
  margin-bottom: 8px;
  color: var(--text);
  font-size: 1.05rem;
}
.experience-entry p {
  max-width: 760px;
  color: var(--dim);
  font-size: 0.9rem;
  line-height: 1.75;
}
.experience-evidence {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}
.experience-evidence span {
  padding: 4px 9px;
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--dim);
  font-family: var(--mono);
  font-size: 0.62rem;
}
.skills-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: auto auto;
  gap: 24px;
}
.skills-col {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.skill-block {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px;
  transition: border-color 0.3s, transform 0.3s;
}
.skill-block:hover {
  border-color: rgba(255,255,255,0.15);
  transform: translateY(-3px);
}
.skill-block h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
}
.sk-icon { font-size: 1.1rem; }
.sk-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.sk-tags span {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--dim);
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  padding: 5px 12px;
  border-radius: 100px;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
  cursor: default;
}
.sk-tags span:hover {
  background: rgba(0,229,255,0.08);
  color: var(--cyan);
  border-color: rgba(0,229,255,0.25);
}

.edu-card {
  grid-column: 1 / -1;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 36px;
  display: flex;
  align-items: center;
  gap: 28px;
  transition: border-color 0.3s;
}
.edu-card:hover { border-color: rgba(0,229,255,0.2); }
.edu-icon { font-size: 2.5rem; flex-shrink: 0; }
.edu-card h3 { font-size: 1.2rem; font-weight: 600; color: var(--text); }
.edu-card p  { color: var(--dim); font-size: 0.9rem; margin-top: 2px; }
.edu-role {
  display: inline-block;
  margin-top: 10px;
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--cyan);
  background: rgba(0,229,255,0.08);
  border: 1px solid rgba(0,229,255,0.2);
  padding: 3px 10px;
  border-radius: 100px;
}
.edu-stats {
  display: flex;
  gap: 40px;
  margin-left: auto;
}
.edu-stats > div { text-align: center; }
.big-num {
  display: block;
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--cyan);
  line-height: 1;
}
.big-label {
  display: block;
  font-family: var(--mono);
  font-size: 0.65rem;
  color: var(--dim);
  margin-top: 4px;
}

/* ============================================================
   CONTACT
============================================================ */
#contact {
  min-height: 70vh;
  display: flex;
  align-items: center;
  justify-content: center;
}
.contact-wrap {
  text-align: center;
  max-width: 700px;
  margin: 0 auto;
}
.contact-heading {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin: 16px 0 20px;
  color: var(--text);
}
.contact-sub {
  color: var(--dim);
  font-size: 1rem;
  margin-bottom: 48px;
}
.contact-links {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}
.clink {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--mono);
  font-size: 0.92rem;
  color: var(--dim);
  transition: color 0.2s;
}
.clink:hover { color: var(--cyan); }
.clink-icon { font-size: 1.1rem; }

/* ============================================================
   FOOTER
============================================================ */
footer {
  position: relative;
  z-index: 1;
  border-top: 1px solid var(--border);
  padding: 28px 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--mono);
  font-size: 0.78rem;
}
.footer-copy { color: var(--dim); }

/* ============================================================
   BROWSER MOCKUP
============================================================ */
.pf-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px 24px;
  background: var(--bg3);
  overflow: visible;
}
.pf-visual.pf-visual-image { padding: 0; overflow: hidden; }
.proj-alt .pf-visual { border-right: 1px solid var(--border); }

.topoflow-hero {
  position: relative;
  min-height: 440px;
  background: #090c12;
}
.topoflow-hero img {
  object-fit: cover;
  object-position: center;
}
.topoflow-visual-label {
  position: absolute;
  right: 18px;
  bottom: 18px;
  left: 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 14px;
  border: 1px solid rgba(255,255,255,0.16);
  border-radius: 6px;
  background: rgba(8,12,18,0.88);
  color: var(--text);
  backdrop-filter: blur(10px);
}
.topoflow-visual-label span,
.topoflow-visual-label strong {
  font-family: var(--mono);
  letter-spacing: 0;
}
.topoflow-visual-label span {
  color: var(--cyan);
  font-size: 0.62rem;
  text-transform: uppercase;
}
.topoflow-visual-label strong {
  font-size: 0.68rem;
  font-weight: 500;
  text-align: right;
}

.pf-visual.pf-visual-evidence {
  display: grid;
  grid-template-rows: minmax(0,1fr) minmax(0,1fr);
  align-items: stretch;
  justify-content: stretch;
  min-height: 520px;
  padding: 0;
  overflow: hidden;
  background: #f5f7fa;
}
.evidence-panel {
  display: grid;
  grid-template-rows: minmax(0,1fr) auto;
  min-width: 0;
  min-height: 0;
  margin: 0;
  overflow: hidden;
  background: #fff;
}
.evidence-panel + .evidence-panel {
  border-top: 1px solid var(--border);
}
.evidence-panel img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 0;
  object-fit: contain;
  object-position: center;
  background: #fff;
}
.evidence-panel figcaption {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 42px;
  padding: 9px 12px;
  background: #111720;
}
.evidence-panel figcaption span,
.evidence-panel figcaption strong {
  font-family: var(--mono);
  letter-spacing: 0;
}
.evidence-panel figcaption span {
  color: var(--cyan);
  font-size: 0.6rem;
  text-transform: uppercase;
}
.evidence-panel figcaption strong {
  color: var(--text);
  font-size: 0.61rem;
  font-weight: 500;
  text-align: right;
}

.browser-mockup {
  width: 340px;
  border-radius: 12px;
  background: var(--bg2);
  border: 1px solid rgba(255,255,255,0.12);
  box-shadow: 0 24px 60px rgba(0,0,0,0.5), 0 0 0 1px rgba(255,255,255,0.05);
  overflow: hidden;
  transition: transform 0.4s ease;
}
.browser-mockup:hover { transform: perspective(800px) rotateY(0deg) rotateX(0deg) scale(1.03) !important; }

.tilt-left  { transform: perspective(800px) rotateY(-12deg) rotateX(4deg); }
.tilt-right { transform: perspective(800px) rotateY(12deg)  rotateX(4deg); }

/* Browser chrome bar */
.bm-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 14px;
  background: rgba(255,255,255,0.04);
  border-bottom: 1px solid rgba(255,255,255,0.07);
}
.bm-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}
.bm-dot.red    { background: #ff5f57; }
.bm-dot.yellow { background: #febc2e; }
.bm-dot.green  { background: #28c840; }
.bm-url {
  flex: 1;
  text-align: center;
  font-family: var(--mono);
  font-size: 0.6rem;
  color: var(--dim);
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.07);
  border-radius: 4px;
  padding: 3px 8px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Mockup body */
.bm-body {
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* Common UI header */
.ui-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 4px;
}
.ui-logo-text {
  font-family: var(--mono);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.06em;
}
.ui-badge {
  font-family: var(--mono);
  font-size: 0.58rem;
  color: var(--cyan);
  background: rgba(0,229,255,0.1);
  border: 1px solid rgba(0,229,255,0.25);
  padding: 3px 8px;
  border-radius: 100px;
  letter-spacing: 0.06em;
}

/* ---- AEGIS UI ---- */
.ui-claim-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 8px;
  padding: 10px 12px;
}
.ui-claim-label {
  font-family: var(--mono);
  font-size: 0.55rem;
  color: var(--dim);
  margin-bottom: 4px;
}
.ui-claim-text {
  font-size: 0.72rem;
  color: var(--text);
  margin-bottom: 8px;
  font-style: italic;
}
.ui-verdict {
  font-family: var(--mono);
  font-size: 0.65rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 4px;
  display: inline-block;
}
.ui-verdict.false { background: rgba(239,68,68,0.15); color: #ef4444; border: 1px solid rgba(239,68,68,0.3); }

.ui-agents {
  display: flex;
  align-items: center;
  gap: 4px;
}
.ui-agent {
  font-family: var(--mono);
  font-size: 0.55rem;
  padding: 4px 8px;
  border-radius: 4px;
  font-weight: 600;
  letter-spacing: 0.04em;
}
.a-fetch   { background: rgba(0,229,255,0.1);  color: var(--cyan);   border: 1px solid rgba(0,229,255,0.2); }
.a-analyze { background: rgba(168,85,247,0.1); color: var(--purple); border: 1px solid rgba(168,85,247,0.2); }
.a-verify  { background: rgba(16,185,129,0.1); color: var(--green);  border: 1px solid rgba(16,185,129,0.2); }
.ui-agent-arrow { font-size: 0.6rem; color: var(--dim); }

.ui-sources {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.ui-src {
  font-family: var(--mono);
  font-size: 0.58rem;
  color: var(--green);
}

/* ---- YIELD UI ---- */
.yield-ui-chart {
  display: flex;
  align-items: flex-end;
  gap: 6px;
  height: 80px;
  padding: 0 4px;
}
.yuc-bar {
  flex: 1;
  height: var(--h);
  background: linear-gradient(to top, var(--c), rgba(168,85,247,0.2));
  border-radius: 3px 3px 0 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
  animation: bar-breathe 3s ease-in-out infinite;
}
.yuc-bar span {
  position: absolute;
  bottom: -16px;
  font-family: var(--mono);
  font-size: 0.42rem;
  color: var(--dim);
  white-space: nowrap;
}
.yield-ui-pred {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 12px;
  padding: 8px 10px;
  background: rgba(16,185,129,0.06);
  border: 1px solid rgba(16,185,129,0.15);
  border-radius: 6px;
  font-size: 0.68rem;
  color: var(--dim);
}
.yield-ui-inputs {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-top: 2px;
}
.yui-tag {
  font-family: var(--mono);
  font-size: 0.55rem;
  color: var(--dim);
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  padding: 3px 7px;
  border-radius: 100px;
}

/* ---- GRIDIUM UI ---- */
.gridium-ui-net {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin: 10px 0;
}
.gu-node {
  font-family: var(--mono);
  font-size: 0.6rem;
  padding: 6px 10px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 4px;
}
.gu-node.central {
  background: rgba(249,115,22,0.1);
  border-color: rgba(249,115,22,0.3);
  color: #f97316;
  text-align: center;
  font-weight: 700;
}
.gu-node-group {
  display: flex;
  gap: 6px;
}
.gu-node-group .gu-node { flex: 1; text-align: center; color: var(--dim); }
.gu-zk-proof {
  font-family: var(--mono);
  font-size: 0.55rem;
  color: #10b981;
  background: rgba(16,185,129,0.1);
  padding: 5px 8px;
  border-radius: 4px;
  text-align: center;
}
.hash { opacity: 0.7; }

/* ---- SODEXO UI ---- */
.sodexo-ui {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.ui-waste-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 8px;
  padding: 10px 12px;
}
.ui-waste-label {
  font-family: var(--mono);
  font-size: 0.52rem;
  color: var(--dim);
  margin-bottom: 4px;
}
.ui-waste-stats {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
}
.ui-waste-val {
  font-family: var(--mono);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--green);
  line-height: 1;
}
.ui-waste-chart {
  display: flex;
  gap: 3px;
  align-items: flex-end;
  height: 20px;
}
.uwc-bar {
  width: 4px;
  background: var(--green);
  border-radius: 1px;
}
.ui-recommendation {
  background: rgba(16,185,129,0.08);
  border: 1px solid rgba(16,185,129,0.15);
  border-radius: 6px;
  padding: 8px 10px;
  font-size: 0.62rem;
  color: var(--text);
  line-height: 1.4;
}
.ui-rec-title {
  font-weight: 700;
  color: var(--green);
  display: block;
  margin-bottom: 2px;
  font-family: var(--mono);
  font-size: 0.55rem;
  letter-spacing: 0.04em;
}

/* ---- COMPRESSOR CBM UI ---- */
.compressor-ui {
  min-height: 220px;
  justify-content: space-between;
}
.compressor-score-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}
.compressor-score-row > div {
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: rgba(255,255,255,0.03);
}
.compressor-score-row span,
.compressor-score-row strong { display: block; }
.compressor-score-row span {
  color: var(--dim);
  font-family: var(--mono);
  font-size: 0.5rem;
}
.compressor-score-row strong {
  margin-top: 3px;
  color: var(--text);
  font-size: 0.72rem;
}
.compressor-score-row .status-hold { color: #fbbf24; }
.compressor-trace {
  display: flex;
  align-items: flex-end;
  gap: 4px;
  height: 74px;
  padding: 8px 10px;
  border-bottom: 1px solid rgba(0,229,255,0.25);
  background: linear-gradient(to bottom, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 100% 24px;
}
.compressor-trace span {
  flex: 1;
  height: var(--v);
  min-height: 5px;
  background: var(--cyan);
  border-radius: 2px 2px 0 0;
  opacity: 0.8;
}
.compressor-trace .recovery { background: var(--green); }
.compressor-gates {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
}
.compressor-gates span {
  padding: 3px 6px;
  border: 1px solid rgba(16,185,129,0.2);
  border-radius: 4px;
  color: var(--green);
  font-family: var(--mono);
  font-size: 0.5rem;
}

/* ============================================================
   RESPONSIVE — Tablet (≤1024px)
============================================================ */
@media (max-width: 1024px) {
  /* Expertise */
  .expertise-grid { grid-template-columns: 1fr 1fr; }

  /* Projects */
  .project-featured,
  .proj-alt {
    grid-template-columns: 1fr;
  }
  .pf-visual {
    min-height: 280px;
    order: -1 !important;
    border-left: none !important;
    border-right: none !important;
    border-bottom: 1px solid var(--border);
    border-radius: 0;
  }
  .topoflow-hero { min-height: 380px; }
  .pf-visual.pf-visual-evidence { min-height: 520px; }

  /* Skills */
  .skills-layout { grid-template-columns: 1fr 1fr; }
  .edu-card { grid-column: 1 / -1; }

  /* Education card */
  .edu-card { flex-direction: row; flex-wrap: wrap; }
  .edu-stats { margin-left: auto; }
}

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

  /* ---- Base ---- */
  section {
    padding: 72px 20px;
  }
  .section-title { margin-bottom: 40px; }

  /* ---- Navbar ---- */
  #navbar { padding: 16px 20px; }
  .nav-links { display: none; }
  .hamburger { display: flex; }

  /* ---- Hero ---- */
  #home {
    padding: 110px 20px 70px;
    align-items: flex-start;
  }
  .hero-greeting { font-size: 0.8rem; margin-bottom: 14px; }
  .hero-name {
    font-size: clamp(3.2rem, 17vw, 6rem);
    margin-bottom: 24px;
  }
  .hero-tagline { font-size: 0.78rem; margin-bottom: 32px; }
  .hero-cta { flex-direction: column; gap: 12px; }
  .btn-main, .btn-ghost { width: 100%; justify-content: center; padding: 14px 20px; }

  /* Simplify hero scene on mobile — hide heavy elements */
  .geo-1 { width: 140px; height: 140px; right: -20px; top: 15%; }
  .geo-2 { width: 100px; height: 100px; right: -10px; top: 45%; }
  .geo-3 { display: none; }
  .sun-orb { top: 18%; right: 12%; width: 36px; height: 36px; }
  .scroll-indicator { display: none; }

  /* ---- Expertise ---- */
  .expertise-grid { grid-template-columns: 1fr; gap: 16px; }
  .exp-card { padding: 24px; }

  /* ---- Projects ---- */
  .project-featured { border-radius: 16px; margin-bottom: 20px; }
  .pf-info { padding: 28px 24px; }
  .pf-meta { flex-wrap: wrap; gap: 8px; }
  .pf-year { margin-left: 0; }
  .pf-title { font-size: 1.6rem; }
  .pf-desc { font-size: 0.88rem; }

  /* Metrics row */
  .pf-metrics { gap: 16px; flex-wrap: wrap; padding: 12px 0; }
  .metric-val { font-size: 1.1rem; }

  /* Tags */
  .pf-tags { gap: 6px; }
  .pf-tags span { font-size: 0.65rem; padding: 3px 10px; }

  /* Links */
  .pf-links { flex-wrap: wrap; gap: 14px; }

  /* Browser mockup — shrink and remove tilt on mobile */
  .pf-visual { min-height: 220px; padding: 20px 16px; }
  .pf-visual.pf-visual-image { padding: 0; }
  .pf-visual-image img { min-height: 220px; }
  .topoflow-hero { min-height: 300px; }
  .topoflow-visual-label {
    right: 12px;
    bottom: 12px;
    left: 12px;
  }
  .pf-visual.pf-visual-evidence {
    min-height: 430px;
    padding: 0;
  }
  .browser-mockup {
    width: 100%;
    max-width: 320px;
    transform: none !important; /* remove tilt */
  }
  .browser-mockup:hover { transform: scale(1.01) !important; }

  /* ---- Skills ---- */
  .skills-layout { grid-template-columns: 1fr; gap: 16px; }
  .experience-entry {
    grid-template-columns: 1fr;
    gap: 10px;
    padding: 24px;
  }
  .skills-col { gap: 16px; }
  .skill-block { padding: 24px; }
  .skill-block h3 { font-size: 0.95rem; }

  /* Education card */
  .edu-card {
    flex-direction: column;
    text-align: center;
    align-items: center;
    padding: 28px 24px;
    gap: 20px;
  }
  .edu-stats { margin-left: 0; gap: 32px; }
  .big-num { font-size: 2rem; }

  /* ---- Contact ---- */
  #contact { padding: 80px 20px; min-height: auto; }
  .contact-heading { font-size: clamp(2rem, 9vw, 3.2rem); }
  .contact-sub   { font-size: 0.9rem; }
  .contact-links { align-items: flex-start; padding: 0 4px; }
  .clink { font-size: 0.8rem; }

  /* ---- Footer ---- */
  footer {
    flex-direction: column;
    gap: 8px;
    text-align: center;
    padding: 24px 20px;
  }
}

/* ============================================================
   RESPONSIVE — Small phone (≤480px)
============================================================ */
@media (max-width: 480px) {

  /* Hero */
  #home { padding: 100px 16px 60px; }
  .hero-name { font-size: clamp(2.8rem, 18vw, 5rem); line-height: 0.88; }
  .hero-greeting { font-size: 0.72rem; }

  /* Hero geo shapes — hide on very small screens */
  .hero-scene { opacity: 0.5; }
  .geo-1 { width: 110px; height: 110px; right: -30px; }
  .geo-2 { display: none; }
  .sun-orb { width: 28px; height: 28px; right: 8%; top: 20%; }

  /* Sections */
  section { padding: 56px 16px; }

  /* Section title */
  .section-title { font-size: clamp(1.8rem, 8vw, 2.6rem); }

  /* Project info */
  .pf-info { padding: 24px 16px; }
  .pf-title { font-size: 1.4rem; }
  .pf-metrics { gap: 12px; }
  .metric-val { font-size: 1rem; }
  .metric-label { font-size: 0.55rem; }

  /* Browser mockup hidden on very small screens — too cramped */
  .pf-visual { min-height: 180px; }
  .pf-visual-image img { min-height: 180px; }
  .topoflow-hero { min-height: 250px; }
  .pf-visual.pf-visual-evidence { min-height: 400px; }
  .evidence-panel figcaption {
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    gap: 2px;
  }
  .evidence-panel figcaption strong { text-align: left; }
  .browser-mockup { max-width: 280px; }
  .bm-body { padding: 10px; gap: 8px; }
  .compressor-score-row { grid-template-columns: 1fr; }

  /* Expertise card */
  .exp-card { padding: 20px; }
  .exp-icon { font-size: 1.8rem; margin-bottom: 12px; }
  .exp-card h3 { font-size: 1rem; }

  /* Skill block */
  .skill-block { padding: 20px; }
  .sk-tags span { font-size: 0.68rem; padding: 4px 10px; }

  /* Education */
  .edu-card { padding: 22px 16px; }
  .edu-stats { flex-direction: row; justify-content: center; }

  /* Contact */
  .contact-heading { font-size: clamp(1.8rem, 10vw, 2.6rem); }
  .clink { font-size: 0.74rem; word-break: break-all; }

  /* Navbar brand */
  .nav-brand { font-size: 1rem; }

  /* Footer */
  footer { font-size: 0.7rem; padding: 20px 16px; }

  /* Mobile menu links */
  .mobile-link { font-size: 1rem; }
}