/* ============================================================
   NITHYANESHWAR A — PORTFOLIO
   Stylesheet v1.0
   ============================================================

   TABLE OF CONTENTS
   1.  Design Tokens (CSS Custom Properties)
   2.  Reset & Base
   3.  Utility
   4.  Loader
   5.  Custom Cursor
   6.  Navigation
   7.  Mobile Menu
   8.  Hero
   9.  Stats
   10. About
   11. Experience
   12. Projects (Horizontal Scroll)
   13. Skills
   14. Leadership
   15. AI Section
   16. Contact
   17. Footer
   18. Responsive

   ============================================================ */

/* ------------------------------------------------------------
   1. DESIGN TOKENS
   ✦ To retheme the entire site, only change --accent below.
      Everything else derives from it via var(--accent-*).
   ------------------------------------------------------------ */
:root {
  /* ⚡ PRIMARY ACCENT — change this one value to retheme */
  --accent: #D2FF00;
  --accent-rgb: 210, 255, 0;
  --accent-dim: rgba(210, 255, 0, 0.07);
  --accent-mid: rgba(210, 255, 0, 0.18);
  --accent-glow: rgba(210, 255, 0, 0.28);
  --accent-border: rgba(210, 255, 0, 0.25);

  /* Backgrounds */
  --bg: #111112;
  --bg-alt: rgba(23, 23, 25, 0.65);
  --bg-card: #1c1c1f;
  --bg-card-h: #222226;
  --bg-glass: rgba(255, 255, 255, 0.025);

  /* Text */
  --tx: #f0f0f0;
  --tx-2: #888;
  --tx-3: #474749;

  /* Borders */
  --br: rgba(255, 255, 255, 0.07);
  --br-h: rgba(255, 255, 255, 0.14);

  /* Fonts */
  --f-display: 'Space Grotesk', sans-serif;
  --f-body: 'Inter', sans-serif;
  --f-mono: 'Courier New', Courier, monospace;

  /* Spacing (8px grid) */
  --s1: 0.5rem;
  --s2: 1rem;
  --s3: 1.5rem;
  --s4: 2rem;
  --s6: 3rem;
  --s8: 4rem;
  --s12: 6rem;
  --s16: 8rem;
  --s20: 10rem;

  /* Layout */
  --nav-h: 72px;
  --px: clamp(1.5rem, 5vw, 7rem);
  --max-w: 1400px;

  /* Easing */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-io: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);

  /* Z-index layers */
  --z-loader: 1000;
  --z-cursor: 999;
  --z-nav: 100;
  --z-menu: 90;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  background: var(--bg);
}

body {
  font-family: var(--f-body);
  background: transparent;
  color: var(--tx);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  cursor: none;
}

a {
  color: inherit;
  text-decoration: none;
}

ul,
ol {
  list-style: none;
}

img {
  display: block;
  max-width: 100%;
}

button {
  background: none;
  border: none;
  cursor: none;
  font: inherit;
  color: inherit;
}

em {
  font-style: normal;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 3px;
}

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

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

/* ------------------------------------------------------------
   3. UTILITY
   ------------------------------------------------------------ */
.section-container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: var(--s16) var(--px);
}

.section-label-wrap {
  margin-bottom: var(--s4);
}

.section-label {
  font-family: var(--f-body);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
}

.section-title {
  font-family: var(--f-display);
  font-size: clamp(2.25rem, 4.5vw, 4.5rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--tx);
  margin-bottom: var(--s8);
}

.accent-text {
  color: var(--accent);
}

/* ------------------------------------------------------------
   4. LOADER
   ------------------------------------------------------------ */
#loader {
  position: fixed;
  inset: 0;
  background: var(--bg);
  z-index: var(--z-loader);
  display: flex;
  align-items: center;
  justify-content: center;
}

.loader-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--s4);
}

.loader-logo {
  font-family: var(--f-display);
  font-size: 3.5rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--accent);
}

.loader-bar-wrapper {
  width: 180px;
  height: 1px;
  background: var(--br);
  overflow: hidden;
}

.loader-bar {
  height: 100%;
  width: 0%;
  background: var(--accent);
  box-shadow: 0 0 10px var(--accent-glow);
}

.loader-label {
  font-size: 0.6875rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--tx-3);
}

/* ------------------------------------------------------------
   5. CUSTOM CURSOR
   ------------------------------------------------------------ */
.cursor {
  position: fixed;
  width: 7px;
  height: 7px;
  background: var(--accent);
  border-radius: 50%;
  pointer-events: none;
  z-index: var(--z-cursor);
  transform: translate(-50%, -50%);
  will-change: transform;
  transition: width 0.3s var(--ease-out),
    height 0.3s var(--ease-out),
    opacity 0.3s;
}

.cursor-ring {
  position: fixed;
  width: 34px;
  height: 34px;
  border: 1px solid rgba(var(--accent-rgb), 0.45);
  border-radius: 50%;
  pointer-events: none;
  z-index: var(--z-cursor);
  transform: translate(-50%, -50%);
  will-change: transform;
  transition: width 0.4s var(--ease-out),
    height 0.4s var(--ease-out),
    border-color 0.3s,
    opacity 0.3s;
}

body.cursor-hover .cursor {
  width: 0;
  height: 0;
  opacity: 0;
}

body.cursor-hover .cursor-ring {
  width: 50px;
  height: 50px;
  border-color: var(--accent);
  opacity: 0.85;
}

/* ------------------------------------------------------------
   6. NAVIGATION
   ------------------------------------------------------------ */
#nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-h);
  z-index: var(--z-nav);
  transition: background 0.5s var(--ease-io), border-color 0.5s;
  border-bottom: 1px solid transparent;
}

#nav.scrolled {
  background: rgba(17, 17, 18, 0.82);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom-color: var(--br);
}

.nav-container {
  max-width: var(--max-w);
  margin: 0 auto;
  height: 100%;
  padding: 0 var(--px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s4);
}

.nav-logo {
  font-family: var(--f-display);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--accent);
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  gap: var(--s6);
  align-items: center;
}

.nav-link {
  font-size: 0.8125rem;
  font-weight: 400;
  letter-spacing: 0.02em;
  color: var(--tx-2);
  position: relative;
  transition: color 0.2s;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--accent);
  transition: width 0.3s var(--ease-out);
}

.nav-link:hover {
  color: var(--tx);
}

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

.nav-resume {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.45rem 1.1rem;
  border: 1px solid var(--accent);
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  border-radius: 2px;
  flex-shrink: 0;
  transition: background 0.25s, color 0.25s;
}

.nav-resume:hover {
  background: var(--accent);
  color: #000;
}

.nav-menu-btn {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  flex-shrink: 0;
}

.nav-menu-btn span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--tx);
  transition: transform 0.35s var(--ease-out), opacity 0.25s;
  transform-origin: center;
}

.nav-menu-btn.active span:first-child {
  transform: translateY(6.5px) rotate(45deg);
}

.nav-menu-btn.active span:last-child {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* ------------------------------------------------------------
   7. MOBILE MENU
   ------------------------------------------------------------ */
.mobile-menu {
  position: fixed;
  inset: 0;
  background: var(--bg);
  z-index: var(--z-menu);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--s6);
  transform: translateX(100%);
  transition: transform 0.55s var(--ease-out);
}

.mobile-menu.open {
  transform: translateX(0);
}

.mobile-link {
  font-family: var(--f-display);
  font-size: clamp(2rem, 8vw, 3rem);
  font-weight: 700;
  color: var(--tx-2);
  transition: color 0.2s;
}

.mobile-link:hover {
  color: var(--accent);
}

.mobile-resume {
  font-size: 1rem;
  font-weight: 500;
  padding: 0.75rem 2rem;
  border: 1px solid var(--accent);
  color: var(--accent) !important;
  border-radius: 2px;
  margin-top: var(--s4);
}

/* ------------------------------------------------------------
   8. HERO
   ------------------------------------------------------------ */
#hero {
  position: relative;
  height: 100svh;
  min-height: 620px;
  overflow: hidden;
  background: transparent;
}

#bgCanvasEl {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  z-index: -1;
  pointer-events: none;
  opacity: 0.6;
}

/* Portrait */
.hero-portrait-container {
  position: absolute;
  right: 0;
  top: 0;
  width: 58%;
  height: 100%;
  z-index: 1;
  pointer-events: none;
}

.hero-portrait-glow {
  position: absolute;
  top: 45%;
  left: 15%;
  transform: translate(-50%, -50%);
  width: 70%;
  height: 80%;
  background: radial-gradient(ellipse at center,
      var(--accent-glow) 0%,
      rgba(var(--accent-rgb), 0.06) 45%,
      transparent 72%);
  z-index: 0;
  pointer-events: none;
}

.hero-portrait {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  z-index: 1;
  filter: contrast(1.04) brightness(0.88);
}

/* Gradient overlays to blend portrait into dark bg */
.hero-portrait-container::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to right,
      var(--bg) 0%,
      rgba(17, 17, 18, 0.8) 18%,
      rgba(17, 17, 18, 0.3) 45%,
      transparent 75%);
  z-index: 2;
}

.hero-portrait-container::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 40%;
  background: linear-gradient(to top, var(--bg) 0%, transparent 100%);
  z-index: 2;
}

/* Text content */
.hero-content {
  position: absolute;
  top: 50%;
  left: var(--px);
  transform: translateY(-52%);
  z-index: 10;
  max-width: 60%;
}

.hero-label {
  display: flex;
  align-items: center;
  gap: var(--s2);
  margin-bottom: var(--s4);
}

.hero-label-dot {
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
  flex-shrink: 0;
  animation: dot-pulse 2.4s ease-in-out infinite;
}

@keyframes dot-pulse {

  0%,
  100% {
    box-shadow: 0 0 0 0 var(--accent-glow);
  }

  50% {
    box-shadow: 0 0 0 7px transparent;
  }
}

.hero-label span:last-child {
  font-size: 0.6875rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--tx-2);
}

.hero-name {
  font-family: var(--f-display);
  font-weight: 800;
  line-height: 0.87;
  letter-spacing: -0.045em;
  text-transform: uppercase;
  color: var(--tx);
  margin-bottom: var(--s4);
  overflow: hidden;
}

.name-row {
  display: block;
  font-size: clamp(2.5rem, 5.8vw, 7.5rem);
  white-space: nowrap;
}

.accent-letter {
  color: var(--accent);
}

.hero-divider-wrap {
  margin-bottom: var(--s4);
  overflow: hidden;
}

.hero-divider {
  height: 1px;
  background: linear-gradient(to right, var(--accent), rgba(var(--accent-rgb), 0));
  transform-origin: left;
}

.hero-tagline {
  font-family: var(--f-body);
  font-size: clamp(0.8125rem, 1.3vw, 1.0625rem);
  font-weight: 300;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--tx-2);
}

/* Scroll indicator */
.hero-scroll {
  position: absolute;
  bottom: var(--s8);
  left: var(--px);
  z-index: 10;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--s2);
}

.scroll-word {
  font-size: 0.5625rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--tx-3);
  writing-mode: vertical-rl;
  transform: rotate(180deg);
}

.scroll-track {
  width: 1px;
  height: 56px;
  background: var(--br);
  overflow: hidden;
  position: relative;
}

.scroll-thumb {
  position: absolute;
  top: -100%;
  width: 100%;
  height: 50%;
  background: var(--accent);
  animation: scroll-slide 2s ease-in-out infinite;
}

@keyframes scroll-slide {
  0% {
    top: -50%;
  }

  100% {
    top: 150%;
  }
}

/* Corner text */
.hero-corner {
  position: absolute;
  bottom: var(--s8);
  right: var(--px);
  z-index: 10;
  display: flex;
  gap: var(--s3);
}

.hero-corner span {
  font-size: 0.625rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--tx-3);
}

.hero-corner-sep {
  color: var(--accent);
}


/* ------------------------------------------------------------
   10. ABOUT
   ------------------------------------------------------------ */
#about {
  background: transparent;
}

.about-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--s16);
  align-items: start;
}


.about-bio p {
  font-size: clamp(0.9375rem, 1.3vw, 1.0625rem);
  color: var(--tx-2);
  line-height: 1.8;
  margin-bottom: var(--s4);
}

.about-interests {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: var(--s6);
}

.interest-chip {
  padding: 0.35rem 0.875rem;
  border: 1px solid var(--br);
  border-radius: 999px;
  font-size: 0.8125rem;
  color: var(--tx-2);
  transition: border-color 0.25s, color 0.25s, background 0.25s;
}

.interest-chip:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-dim);
}

.about-right-title {
  font-size: 0.625rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--tx-3);
  margin-bottom: var(--s4);
}

.edu-timeline {
  display: flex;
  flex-direction: column;
}

.edu-item {
  display: grid;
  grid-template-columns: 130px 1fr;
  gap: var(--s4);
  padding: var(--s5, 2.5rem) 0;
  border-bottom: 1px solid var(--br);
}

.edu-item:first-child {
  border-top: 1px solid var(--br);
}

.edu-period {
  font-size: 0.6875rem;
  color: var(--tx-3);
  letter-spacing: 0.04em;
  line-height: 1.5;
  padding-top: 0.25rem;
}

.edu-details {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.edu-degree {
  font-family: var(--f-display);
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--tx);
}

.edu-school {
  font-size: 0.8125rem;
  color: var(--tx-2);
}

.edu-modules {
  font-size: 0.6875rem;
  color: var(--accent);
  margin-top: 0.2rem;
  letter-spacing: 0.04em;
}

/* ------------------------------------------------------------
   11. EXPERIENCE
   ------------------------------------------------------------ */
#experience {
  background: var(--bg-alt);
}

.exp-timeline {
  position: relative;
  display: flex;
  flex-direction: column;
}

.exp-line {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 1px;
  background: var(--br);
}

.exp-item {
  display: grid;
  grid-template-columns: 20px 1fr;
  gap: var(--s6);
  padding: var(--s8) 0;
  border-bottom: 1px solid var(--br);
}

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

.exp-node {
  display: flex;
  justify-content: center;
  padding-top: 0.45rem;
}

.exp-dot {
  width: 9px;
  height: 9px;
  border: 1.5px solid var(--accent);
  background: var(--bg-alt);
  border-radius: 50%;
  position: relative;
  z-index: 1;
  flex-shrink: 0;
  transition: background 0.3s;
}

.exp-item:hover .exp-dot {
  background: var(--accent);
}

.exp-body {
  padding-left: var(--s3);
}

.exp-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--s4);
  margin-bottom: var(--s3);
  flex-wrap: wrap;
}

.exp-title-group {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.exp-role {
  font-family: var(--f-display);
  font-size: clamp(1.125rem, 2vw, 1.5rem);
  font-weight: 600;
  color: var(--tx);
}

.exp-company {
  font-size: 0.875rem;
  color: var(--accent);
  font-weight: 500;
}

.exp-period {
  font-size: 0.6875rem;
  color: var(--tx-3);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  white-space: nowrap;
  padding-top: 0.35rem;
}

.exp-list {
  margin-bottom: var(--s4);
}

.exp-list li {
  font-size: 0.9375rem;
  color: var(--tx-2);
  line-height: 1.75;
  padding-left: var(--s3);
  position: relative;
  margin-bottom: var(--s2);
}

.exp-list li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-size: 0.6875rem;
  top: 0.42rem;
}

.exp-desc {
  font-size: 0.9375rem;
  color: var(--tx-2);
  line-height: 1.8;
  margin-bottom: var(--s4);
}

.exp-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.exp-tags span {
  padding: 0.2rem 0.6rem;
  background: var(--accent-dim);
  border: 1px solid var(--accent-border);
  border-radius: 2px;
  font-size: 0.625rem;
  color: var(--accent);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* ------------------------------------------------------------
   12. PROJECTS (Horizontal Scroll)
   ------------------------------------------------------------ */
.projects-section {
  background: transparent;
}

.projects-pin {
  height: 100vh;
  min-height: 600px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  padding-top: var(--s8);
  padding-bottom: var(--s4);
}

.projects-header {
  padding: 0 var(--px);
  margin-bottom: var(--s4);
  flex-shrink: 0;
}

.projects-header-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--s4);
}

.projects-title {
  margin-bottom: 0;
}

.projects-hint {
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--tx-3);
}

.projects-viewport {
  flex: 1;
  overflow: hidden;
  position: relative;
  min-height: 0;
}

.projects-track {
  display: flex;
  gap: var(--s3);
  height: 100%;
  padding: 0 var(--px);
  will-change: transform;
}

/* Trailing spacer for last-card breathing room */
.projects-track::after {
  content: '';
  display: block;
  width: var(--px);
  flex-shrink: 0;
}

.project-card {
  flex-shrink: 0;
  width: min(420px, 80vw);
  height: 100%;
  border-radius: 4px;
  border: 1px solid var(--br);
  overflow: hidden;
  position: relative;
  transition: border-color 0.35s;
}

.project-card:hover {
  border-color: var(--accent-border);
}

.project-card-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

/* Unique per-card gradient backgrounds */
.pc-bg-1 {
  background:
    radial-gradient(ellipse at 80% 15%, rgba(99, 102, 241, 0.05) 0%, transparent 55%),
    linear-gradient(to right, rgba(28, 28, 31, 0.95) 0%, rgba(28, 28, 31, 0.4) 45%, transparent 80%),
    url('../images/aegis.jpg') center/cover no-repeat;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.project-card:hover .pc-bg-1 {
  transform: scale(1.05);
}

.pc-bg-2 {
  background:
    radial-gradient(ellipse at 75% 20%, rgba(20, 184, 166, 0.05) 0%, transparent 55%),
    linear-gradient(to right, rgba(28, 28, 31, 0.95) 0%, rgba(28, 28, 31, 0.4) 45%, transparent 80%),
    url('../images/can_bus.png') center/cover no-repeat;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.project-card:hover .pc-bg-2 {
  transform: scale(1.05);
}

.pc-bg-3 {
  background:
    radial-gradient(ellipse at 70% 15%, rgba(139, 92, 246, 0.05) 0%, transparent 55%),
    radial-gradient(ellipse at 30% 85%, rgba(var(--accent-rgb), 0.06) 0%, transparent 50%),
    var(--bg-card);
}

.pc-bg-4 {
  background:
    radial-gradient(ellipse at 80% 20%, rgba(249, 115, 22, 0.05) 0%, transparent 55%),
    radial-gradient(ellipse at 15% 80%, rgba(var(--accent-rgb), 0.06) 0%, transparent 50%),
    var(--bg-card);
}

.project-card-content {
  position: relative;
  z-index: 1;
  height: 100%;
  display: flex;
  flex-direction: column;
  padding: var(--s6);
}

.project-card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: var(--s4);
}

.project-num {
  font-family: var(--f-display);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--tx-3);
}

.project-award {
  font-size: 0.625rem;
  padding: 0.25rem 0.6rem;
  background: rgba(var(--accent-rgb), 0.1);
  border: 1px solid var(--accent-border);
  border-radius: 2px;
  color: var(--accent);
  letter-spacing: 0.06em;
  white-space: nowrap;
}

.project-card-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding-bottom: var(--s6);
}

.project-name {
  font-family: var(--f-display);
  font-size: clamp(2.25rem, 4.5vw, 3.75rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 0.93;
  color: var(--tx);
  margin-bottom: var(--s2);
}

.project-sub {
  font-size: 0.875rem;
  color: var(--accent);
  font-weight: 500;
  margin-bottom: var(--s4);
}

.project-desc {
  font-size: 0.875rem;
  color: var(--tx-2);
  line-height: 1.75;
}

.project-card-bottom {
  border-top: 1px solid var(--br);
  padding-top: var(--s4);
  flex-shrink: 0;
}

.project-tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.project-tech-tags span {
  font-size: 0.625rem;
  padding: 0.2rem 0.6rem;
  border: 1px solid var(--br);
  border-radius: 2px;
  color: var(--tx-2);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  transition: border-color 0.2s, color 0.2s;
}

.project-card:hover .project-tech-tags span {
  border-color: var(--br-h);
  color: var(--tx);
}

/* Progress bar */
.projects-progress-wrap {
  padding: var(--s3) var(--px) 0;
  flex-shrink: 0;
}

.projects-progress-track {
  height: 1px;
  background: var(--br);
  border-radius: 1px;
  overflow: hidden;
}

.projects-progress-bar {
  height: 100%;
  width: 0%;
  background: var(--accent);
  box-shadow: 0 0 10px var(--accent-glow);
}

/* ------------------------------------------------------------
   13. SKILLS
   ------------------------------------------------------------ */
#skills {
  background: var(--bg-alt);
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--s4);
}

.skill-cat {
  padding: var(--s6);
  background: var(--bg-card);
  border: 1px solid var(--br);
  border-radius: 4px;
  transition: border-color 0.35s;
}

.skill-cat:hover {
  border-color: var(--accent-border);
}

.skill-cat-title {
  display: flex;
  align-items: baseline;
  gap: var(--s2);
  font-family: var(--f-display);
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--tx);
  margin-bottom: var(--s4);
  padding-bottom: var(--s3);
  border-bottom: 1px solid var(--br);
}

.skill-cat-num {
  font-size: 0.5625rem;
  color: var(--accent);
  letter-spacing: 0.1em;
  font-weight: 600;
}

.skill-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.skill-pill {
  padding: 0.35rem 0.75rem;
  border: 1px solid var(--br);
  border-radius: 2px;
  font-size: 0.8125rem;
  color: var(--tx-2);
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}

.skill-pill:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-dim);
}

/* ------------------------------------------------------------
   14. LEADERSHIP
   ------------------------------------------------------------ */
#leadership {
  background: transparent;
}

.leadership-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--s2);
}

.leadership-item {
  display: flex;
  align-items: flex-start;
  gap: var(--s3);
  padding: var(--s4) var(--s6);
  background: var(--bg-card);
  border: 1px solid var(--br);
  border-radius: 4px;
  transition: border-color 0.3s, background 0.3s;
}

.leadership-item:hover {
  border-color: var(--accent-border);
  background: var(--bg-card-h);
}

.leadership-icon {
  color: var(--accent);
  font-size: 0.5rem;
  margin-top: 0.5rem;
  flex-shrink: 0;
}

.leadership-info {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.leadership-info strong {
  font-family: var(--f-display);
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--tx);
}

.leadership-info span {
  font-size: 0.8125rem;
  color: var(--tx-2);
}

/* ------------------------------------------------------------
   15. AI SECTION
   ------------------------------------------------------------ */
#ai-built {
  background: var(--bg-alt);
  border-top: 1px solid var(--br);
  border-bottom: 1px solid var(--br);
}

.ai-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: var(--s16) var(--px);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--s16);
  align-items: center;
}

.ai-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 1rem;
  background: var(--accent-dim);
  border: 1px solid var(--accent-border);
  border-radius: 999px;
  font-size: 0.6875rem;
  color: var(--accent);
  font-weight: 500;
  letter-spacing: 0.08em;
  margin-bottom: var(--s6);
}

.ai-badge-dot {
  width: 5px;
  height: 5px;
  background: var(--accent);
  border-radius: 50%;
  animation: dot-pulse 2.4s ease-in-out infinite;
}

.ai-title {
  font-family: var(--f-display);
  font-size: clamp(2.5rem, 4.5vw, 4.25rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: var(--s6);
}

.ai-body p {
  font-size: 0.9375rem;
  color: var(--tx-2);
  line-height: 1.85;
  margin-bottom: var(--s4);
}

/* Terminal */
.ai-terminal {
  background: #0c0c0d;
  border: 1px solid var(--br);
  border-radius: 8px;
  overflow: hidden;
  box-shadow:
    0 0 80px rgba(var(--accent-rgb), 0.04),
    0 24px 48px rgba(0, 0, 0, 0.5);
}

.terminal-titlebar {
  display: flex;
  align-items: center;
  gap: var(--s3);
  padding: 0.75rem var(--s4);
  background: rgba(255, 255, 255, 0.025);
  border-bottom: 1px solid var(--br);
}

.terminal-dots {
  display: flex;
  gap: 6px;
}

.t-dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
}

.t-red {
  background: #ff5f57;
}

.t-yellow {
  background: #ffbd2e;
}

.t-green {
  background: #28c840;
}

.terminal-filename {
  font-family: var(--f-mono);
  font-size: 0.6875rem;
  color: var(--tx-3);
  margin: 0 auto;
}

.terminal-body {
  padding: var(--s6);
  font-family: var(--f-mono);
  font-size: 0.875rem;
  line-height: 1;
}

.terminal-line {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  margin-bottom: var(--s3);
}

.terminal-last {
  margin-bottom: 0;
}

.t-prompt {
  color: var(--accent);
  font-weight: 700;
  flex-shrink: 0;
}

.t-cmd {
  color: #fff;
}

.t-arg {
  color: var(--tx-2);
  font-size: 0.8125rem;
}

.t-cursor {
  color: var(--accent);
  animation: blink 1.1s step-end infinite;
}

@keyframes blink {

  0%,
  100% {
    opacity: 1;
  }

  50% {
    opacity: 0;
  }
}

/* ------------------------------------------------------------
   16. CONTACT
   ------------------------------------------------------------ */
#contact {
  background: transparent;
}

.contact-heading {
  font-family: var(--f-display);
  font-size: clamp(3.25rem, 7.5vw, 7.5rem);
  font-weight: 800;
  line-height: 1.0;
  letter-spacing: -0.045em;
  margin-bottom: var(--s3);
}

.contact-sub {
  font-size: 1rem;
  color: var(--tx-2);
  margin-bottom: var(--s12);
}

.contact-links-list {
  display: flex;
  flex-direction: column;
}

.contact-link-item {
  display: flex;
  align-items: center;
  gap: var(--s4);
  padding: var(--s5, 2.5rem) 0;
  border-bottom: 1px solid var(--br);
  position: relative;
  overflow: hidden;
  transition: border-color 0.3s;
}

.contact-link-item:first-child {
  border-top: 1px solid var(--br);
}

.contact-link-item::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--accent-dim);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.45s var(--ease-out);
  z-index: 0;
}

.contact-link-item:hover::before {
  transform: scaleX(1);
}

.contact-link-item>* {
  position: relative;
  z-index: 1;
}

.cli-label {
  font-size: 0.625rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--tx-3);
  width: 90px;
  flex-shrink: 0;
}

.cli-value {
  font-family: var(--f-display);
  font-size: clamp(1.0625rem, 2.5vw, 1.875rem);
  font-weight: 600;
  color: var(--tx);
  flex: 1;
  transition: color 0.3s;
}

.contact-link-item:hover .cli-value {
  color: var(--accent);
}

.cli-arrow {
  font-size: 1.375rem;
  color: var(--tx-3);
  transition: color 0.3s, transform 0.35s var(--ease-out);
}

.contact-link-item:hover .cli-arrow {
  color: var(--accent);
  transform: translate(5px, -5px);
}

/* ------------------------------------------------------------
   17. FOOTER
   ------------------------------------------------------------ */
#footer {
  background: var(--bg-alt);
  border-top: 1px solid var(--br);
  padding: var(--s6) var(--px) var(--s4);
}

.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: var(--s4);
  border-bottom: 1px solid var(--br);
  margin-bottom: var(--s4);
}

.footer-left {
  display: flex;
  align-items: center;
  gap: var(--s2);
}

.footer-logo {
  font-family: var(--f-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--accent);
}

.footer-sep {
  color: var(--tx-3);
}

.footer-name {
  font-size: 0.875rem;
  color: var(--tx-2);
}

.footer-center {
  font-size: 0.75rem;
  color: var(--tx-3);
}

.footer-right {
  font-size: 0.6875rem;
  color: var(--tx-3);
  letter-spacing: 0.06em;
}

.footer-bottom {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-bottom span {
  font-size: 0.625rem;
  color: var(--tx-3);
  letter-spacing: 0.06em;
}

/* ------------------------------------------------------------
   18. RESPONSIVE
   ------------------------------------------------------------ */
@media (max-width: 1100px) {
  .about-grid {
    grid-template-columns: 1fr;
    gap: var(--s8);
  }

  .skills-grid {
    grid-template-columns: 1fr;
    gap: var(--s3);
  }

  .ai-inner {
    grid-template-columns: 1fr;
    gap: var(--s8);
  }

  .leadership-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  :root {
    --px: 1.5rem;
  }

  /* Hide desktop nav elements */
  .nav-links,
  .nav-resume {
    display: none;
  }

  .nav-menu-btn {
    display: flex;
  }

  /* Hide custom cursor */
  .cursor,
  .cursor-ring {
    display: none;
  }

  body {
    cursor: auto;
  }

  /* Hero mobile: portrait becomes full-bg at low opacity */
  .hero-portrait-container {
    width: 100%;
    opacity: 0.8;
  }

  .hero-portrait-container::before {
    background: linear-gradient(to bottom,
        rgba(17, 17, 18, 0.2) 0%,
        rgba(17, 17, 18, 0.5) 50%,
        var(--bg) 90%);
  }

  .hero-content {
    max-width: 100%;
    top: auto;
    bottom: calc(var(--s16) + var(--s4));
    transform: none;
  }

  .hero-corner {
    display: none;
  }

  /* Stats mobile: 2x2 grid */
  .stats-inner {
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--s6);
  }

  .stat-sep {
    display: none;
  }

  .stat-item {
    flex: 0 0 calc(50% - var(--s3));
  }

  /* Experience */
  .exp-header {
    flex-direction: column;
    gap: var(--s1);
  }

  /* Projects: Horizontal snap-scroll cylinder effect on mobile */
  .projects-section {
    overflow: hidden;
  }

  .projects-pin {
    height: auto;
    overflow: visible;
    padding-bottom: var(--s4);
  }

  .projects-viewport {
    overflow-x: auto;
    overflow-y: hidden;
    flex: none;
    height: auto;
    scroll-snap-type: x mandatory;
    scroll-behavior: smooth;
    -webkit-overflow-scrolling: touch;
    /* Hide scrollbar */
    scrollbar-width: none;
  }

  .projects-viewport::-webkit-scrollbar {
    display: none;
  }

  .projects-track {
    display: flex;
    flex-direction: row;
    height: 440px;
    gap: 1rem;
    padding: 0 17.5vw;
    /* 50vw - (65vw / 2) to center first and last items */
    width: max-content;
  }

  .projects-track::after {
    display: none;
  }

  .project-card {
    width: 65vw;
    height: 100%;
    scroll-snap-align: center;
    transform: scale(0.85);
    opacity: 0.5;
    transition: transform 0.4s ease, opacity 0.4s ease;
  }

  .project-card.snap-active {
    transform: scale(1);
    opacity: 1;
  }

  .projects-hint {
    display: block;
    text-align: center;
    margin-top: 0.5rem;
  }

  .projects-progress-wrap {
    display: none;
  }

  /* Contact */
  .contact-heading {
    font-size: clamp(2.5rem, 12vw, 4rem);
  }

  /* Footer */
  .footer-inner {
    flex-direction: column;
    gap: var(--s3);
    text-align: center;
  }

  .footer-bottom {
    flex-direction: column;
    gap: var(--s2);
    text-align: center;
  }
}

@media (max-width: 480px) {
  .about-heading {
    font-size: 1.75rem;
  }

  .cli-value {
    font-size: 1rem;
  }

  .edu-item {
    grid-template-columns: 1fr;
    gap: var(--s2);
  }
}