/* ============================================
   SAAHITH MATAM — V2 PORTFOLIO
   bruno-simon x mont-fort inspired
   ============================================ */

:root {
  --bg: #0b0b0f;
  --bg-alt: #101018;
  --surface: #161622;
  --surface-hover: #1c1c30;
  --border: rgba(255,255,255,0.06);
  --border-hover: rgba(255,255,255,0.12);

  --white: #f0f0f5;
  --gray-1: #c8c8d5;
  --gray-2: #8a8a9f;
  --gray-3: #55556a;
  --gray-4: #33334a;

  --accent: #7c5cfc;
  --accent-light: #a78bfa;
  --neon: #00f0ff;
  --neon-pink: #ff3cac;
  --neon-green: #00e87b;
  --neon-orange: #ff8a00;

  --gradient: linear-gradient(135deg, #7c5cfc, #00f0ff);
  --gradient-warm: linear-gradient(135deg, #ff3cac, #ff8a00);

  --font-sans: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-serif: 'DM Serif Display', Georgia, serif;
  --font-mono: 'JetBrains Mono', monospace;

  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

html { font-size: 16px; }

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--gray-1);
  line-height: 1.65;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  cursor: none;
}

a { cursor: none; }

::selection { background: rgba(124,92,252,0.3); color: #fff; }

/* ============================================
   CUSTOM CURSOR
   ============================================ */

.cursor {
  position: fixed;
  width: 20px;
  height: 20px;
  border: 2px solid var(--accent);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%,-50%);
  transition: width 0.3s var(--ease), height 0.3s var(--ease), border-color 0.3s;
  mix-blend-mode: difference;
}

.cursor.hover {
  width: 50px;
  height: 50px;
  border-color: var(--neon);
}

.cursor-trail {
  position: fixed;
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9998;
  transform: translate(-50%,-50%);
  transition: transform 0.08s linear;
}

@media (pointer: coarse) {
  .cursor, .cursor-trail { display: none; }
  body { cursor: auto; }
  a { cursor: pointer; }
}

/* ============================================
   3D CANVAS
   ============================================ */

#scene3d {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: 0;
  pointer-events: none;
}

/* ============================================
   LOADER
   ============================================ */

.loader {
  position: fixed;
  inset: 0;
  z-index: 10000;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.6s var(--ease), visibility 0.6s;
}

.loader.done {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.loader-inner { text-align: center; }

.loader-bar {
  width: 200px;
  height: 2px;
  background: var(--gray-4);
  border-radius: 1px;
  overflow: hidden;
  margin-bottom: 1rem;
}

.loader-fill {
  height: 100%;
  width: 0%;
  background: var(--gradient);
  border-radius: 1px;
  transition: width 0.1s;
}

.loader-text {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--gray-2);
  letter-spacing: 0.1em;
}

/* ============================================
   NAV
   ============================================ */

.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 1.5rem 2.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: background 0.4s, backdrop-filter 0.4s;
}

.nav.scrolled {
  background: rgba(11,11,15,0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.nav-logo {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  color: var(--white);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.logo-dot { color: var(--accent); }

.nav-links { display: flex; gap: 2.5rem; }

.nav-link {
  color: var(--gray-2);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  transition: color 0.3s;
  position: relative;
}

.nav-link::before {
  content: attr(data-index);
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: var(--accent);
  position: absolute;
  top: -10px;
  left: 0;
  opacity: 0;
  transform: translateY(4px);
  transition: all 0.3s var(--ease);
}

.nav-link:hover { color: var(--white); }
.nav-link:hover::before { opacity: 1; transform: translateY(0); }

.nav-burger {
  display: none;
  flex-direction: column;
  gap: 6px;
  background: none;
  border: none;
  cursor: none;
  padding: 4px;
  width: 28px;
}

.nav-burger span {
  height: 2px;
  background: var(--white);
  border-radius: 1px;
  transition: all 0.3s var(--ease);
}

.nav-burger span:first-child { width: 100%; }
.nav-burger span:last-child { width: 60%; }

.nav-burger.active span:first-child { transform: rotate(45deg) translate(3px,3px); }
.nav-burger.active span:last-child { width:100%; transform: rotate(-45deg) translate(3px,-3px); }

.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 99;
  background: var(--bg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  opacity: 0;
  visibility: hidden;
  transition: all 0.5s var(--ease);
}

.mobile-menu.active { opacity: 1; visibility: visible; }

.mm-link {
  font-family: var(--font-serif);
  font-size: 2.5rem;
  color: var(--white);
  text-decoration: none;
  transition: color 0.3s;
}

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

/* ============================================
   LAYOUT
   ============================================ */

.container { max-width: 1200px; margin: 0 auto; padding: 0 2.5rem; }

.section {
  position: relative;
  z-index: 2;
  padding: 10rem 0;
}

.section-alt { background: var(--bg-alt); }

.section-num {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent);
  letter-spacing: 0.2em;
  margin-bottom: 1.5rem;
}

.section-heading {
  font-family: var(--font-serif);
  font-size: clamp(2.5rem, 5vw, 4rem);
  color: var(--white);
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 3rem;
}

.section-heading em {
  font-style: italic;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-top { margin-bottom: 4rem; }

/* ============================================
   REVEAL ANIMATIONS
   ============================================ */

.reveal-up {
  opacity: 0;
  transform: translateY(50px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
  transition-delay: var(--d, 0s);
}

.reveal-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================
   HERO
   ============================================ */

.hero {
  position: relative;
  z-index: 2;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 8rem 2.5rem 6rem;
}

.hero-content { max-width: 900px; }

.hero-overline {
  display: inline-flex;
  align-items: center;
  gap: 1rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent-light);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 2rem;
}

.overline-line {
  display: block;
  width: 40px;
  height: 1px;
  background: var(--accent);
}

.hero-heading {
  margin-bottom: 2rem;
  overflow: hidden;
}

.hero-line {
  display: block;
  font-family: var(--font-serif);
  font-size: clamp(4rem, 12vw, 9rem);
  font-weight: 400;
  color: var(--white);
  line-height: 1.05;
  letter-spacing: -0.04em;
}

.hero-line-italic {
  font-style: italic;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: 1.15rem;
  color: var(--gray-2);
  max-width: 560px;
  line-height: 1.8;
  margin-bottom: 3rem;
}

.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; }

.btn-main {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.9rem 2rem;
  background: var(--accent);
  color: #fff;
  font-weight: 600;
  font-size: 0.9rem;
  border-radius: 100px;
  text-decoration: none;
  transition: all 0.4s var(--ease);
  box-shadow: 0 0 30px rgba(124,92,252,0.3);
}

.btn-main:hover {
  background: #6a4de6;
  box-shadow: 0 0 50px rgba(124,92,252,0.5);
  transform: translateY(-2px);
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  padding: 0.9rem 2rem;
  color: var(--gray-1);
  font-weight: 600;
  font-size: 0.9rem;
  border: 1px solid var(--border-hover);
  border-radius: 100px;
  text-decoration: none;
  transition: all 0.3s var(--ease);
}

.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--white);
  transform: translateY(-2px);
}

.hero-scroll-hint {
  position: absolute;
  bottom: 3rem;
  right: 3rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
}

.hero-scroll-hint span {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--gray-3);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  writing-mode: vertical-rl;
}

.scroll-track {
  width: 1px;
  height: 60px;
  background: var(--gray-4);
  border-radius: 1px;
  overflow: hidden;
}

.scroll-thumb {
  width: 100%;
  height: 20px;
  background: var(--accent);
  border-radius: 1px;
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0% { transform: translateY(-20px); }
  50% { transform: translateY(60px); }
  100% { transform: translateY(-20px); }
}

/* Marquee */
.hero-marquee {
  position: absolute;
  bottom: 0;
  left: 0; right: 0;
  overflow: hidden;
  border-top: 1px solid var(--border);
  padding: 1rem 0;
  z-index: 2;
}

.marquee-track {
  display: flex;
  gap: 3rem;
  animation: marquee 25s linear infinite;
  white-space: nowrap;
}

.marquee-track span {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--gray-3);
  letter-spacing: 0.2em;
}

@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* ============================================
   ABOUT / SPLIT
   ============================================ */

.split {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 6rem;
  align-items: start;
}

.split-left { position: sticky; top: 120px; }

.body-lg {
  font-size: 1.2rem;
  color: var(--gray-1);
  line-height: 1.75;
  margin-bottom: 1.5rem;
}

.body-md {
  font-size: 1rem;
  color: var(--gray-2);
  line-height: 1.75;
  margin-bottom: 1.25rem;
}

.body-md strong { color: var(--white); font-weight: 600; }

.about-stats {
  display: flex;
  gap: 3rem;
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
}

.a-stat-num {
  font-family: var(--font-serif);
  font-size: 3rem;
  color: var(--white);
  line-height: 1;
}

.a-stat-suffix {
  font-family: var(--font-serif);
  font-size: 2rem;
  color: var(--accent);
}

.a-stat-label {
  display: block;
  font-size: 0.75rem;
  color: var(--gray-3);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-top: 0.5rem;
}

/* ============================================
   FILTER PILLS
   ============================================ */

.filter-row { display: flex; gap: 0.5rem; flex-wrap: wrap; }

.pill {
  padding: 0.45rem 1.1rem;
  border-radius: 100px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--gray-2);
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 500;
  cursor: none;
  transition: all 0.3s var(--ease);
}

.pill:hover { border-color: var(--border-hover); color: var(--white); }

.pill.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  box-shadow: 0 4px 15px rgba(124,92,252,0.25);
}

/* ============================================
   EXPERIENCE CARDS
   ============================================ */

.exp-list { display: flex; flex-direction: column; gap: 1px; }

.exp-card {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 3rem;
  padding: 3rem 0;
  border-bottom: 1px solid var(--border);
  transition: all 0.5s var(--ease);
}

.exp-card.hidden {
  opacity: 0;
  max-height: 0;
  padding: 0;
  overflow: hidden;
  border: none;
}

.exp-date {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--gray-3);
  display: block;
  margin-bottom: 0.75rem;
}

.exp-tags { display: flex; flex-wrap: wrap; gap: 0.35rem; }

.exp-tag {
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.2rem 0.6rem;
  border-radius: 100px;
}

.t-ai { background: rgba(124,92,252,0.15); color: var(--accent-light); }
.t-conv { background: rgba(0,240,255,0.1); color: var(--neon); }
.t-fs { background: rgba(0,232,123,0.1); color: var(--neon-green); }
.t-cloud { background: rgba(255,138,0,0.1); color: var(--neon-orange); }
.t-lead { background: rgba(255,60,172,0.1); color: var(--neon-pink); }

.exp-title {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  color: var(--white);
  margin-bottom: 0.25rem;
}

.exp-company {
  font-size: 0.95rem;
  color: var(--accent-light);
  font-weight: 500;
  margin-bottom: 1.25rem;
}

.exp-loc { color: var(--gray-3); font-weight: 400; }

.exp-bullets {
  list-style: none;
  margin-bottom: 1.5rem;
}

.exp-bullets li {
  position: relative;
  padding-left: 1.25rem;
  margin-bottom: 0.6rem;
  font-size: 0.925rem;
  color: var(--gray-2);
  line-height: 1.7;
}

.exp-bullets li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.7em;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0.5;
}

.exp-bullets li strong { color: var(--white); font-weight: 600; }

.exp-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.exp-stack span {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  padding: 0.25rem 0.6rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--gray-3);
}

/* ============================================
   PROJECTS GRID
   ============================================ */

.proj-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.proj-card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 0;
  cursor: pointer;
  transition: border-color 0.4s, box-shadow 0.4s, transform 0.4s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.4s;
  overflow: hidden;
}

.proj-header {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 2rem;
  min-height: 340px;
  position: relative;
}

.proj-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(124,92,252,0.06), rgba(0,240,255,0.03));
  opacity: 0;
  transition: opacity 0.5s;
  pointer-events: none;
}

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

.proj-card:hover {
  border-color: rgba(124,92,252,0.3);
  transform: translateY(-4px);
  box-shadow: 0 20px 60px rgba(0,0,0,0.4), 0 0 40px rgba(124,92,252,0.08);
}

.proj-card.expanded {
  border-color: rgba(124,92,252,0.4);
  box-shadow: 0 24px 80px rgba(0,0,0,0.5), 0 0 50px rgba(124,92,252,0.12);
  grid-column: 1 / -1 !important;
}

.proj-card.expanded::before { opacity: 1; }

.proj-card.hidden {
  opacity: 0;
  transform: scale(0.95);
  pointer-events: none;
}

.proj-card--wide { grid-column: span 2; }

/* Toggle icon (+ / ×) */
.proj-toggle {
  position: absolute;
  top: 2rem;
  right: 2rem;
  color: var(--gray-4);
  transition: all 0.4s var(--ease);
  z-index: 2;
}

.proj-card:hover .proj-toggle { color: var(--accent); }

.proj-toggle svg {
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.proj-card.expanded .proj-toggle {
  color: var(--accent-light);
}

.proj-card.expanded .proj-toggle svg {
  transform: rotate(45deg);
}

/* Expandable details */
.proj-expand {
  display: grid;
  grid-template-rows: 0fr;
  overflow: hidden;
  transition: grid-template-rows 0.5s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.4s 0.05s;
  opacity: 0;
}

.proj-card.expanded .proj-expand {
  grid-template-rows: 1fr;
  opacity: 1;
}

.proj-expand > .proj-expand-inner {
  overflow: hidden;
}

.proj-expand-inner {
  padding: 0 2rem 2rem;
  border-top: 1px solid var(--border);
  margin-top: 0;
  padding-top: 1.5rem;
}

.proj-detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

.proj-detail-col h4 {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--accent-light);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}

.proj-detail-col p {
  font-size: 0.85rem;
  color: var(--gray-2);
  line-height: 1.7;
}

.proj-skill-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.proj-skill-list li {
  font-size: 0.8rem;
  color: var(--gray-2);
  line-height: 1.55;
  padding-left: 1rem;
  position: relative;
}

.proj-skill-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--accent);
}

.proj-skill-list li strong {
  color: var(--white);
  font-weight: 500;
}

.proj-live-link {
  display: inline-block;
  margin-top: 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent);
  letter-spacing: 0.05em;
  text-decoration: none;
  padding: 0.5rem 1rem;
  border: 1px solid rgba(124,92,252,0.3);
  border-radius: 6px;
  transition: all 0.3s;
}

.proj-live-link:hover {
  background: rgba(124,92,252,0.1);
  border-color: var(--accent);
}

.proj-number {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--gray-4);
  letter-spacing: 0.1em;
  margin-bottom: 1.5rem;
}

.proj-content { position: relative; z-index: 1; }

.proj-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--gray-3);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  display: block;
  margin-bottom: 0.75rem;
}

.proj-title {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  color: var(--white);
  margin-bottom: 0.25rem;
}

.proj-sub {
  font-size: 0.85rem;
  color: var(--accent-light);
  margin-bottom: 1rem;
}

.proj-desc {
  font-size: 0.875rem;
  color: var(--gray-2);
  line-height: 1.65;
  margin-bottom: 1.25rem;
}

.proj-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
}

.proj-stack span {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  padding: 0.2rem 0.55rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--gray-3);
}

/* ============================================
   SKILLS
   ============================================ */

.skills-orbit {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.5rem;
}

.skill-col h4 {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  color: var(--white);
  margin-bottom: 1rem;
}

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

.skill-chips span {
  font-size: 0.8rem;
  padding: 0.4rem 0.8rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 100px;
  color: var(--gray-2);
  transition: all 0.3s var(--ease);
}

.skill-chips span:hover {
  border-color: var(--accent);
  color: var(--white);
  background: rgba(124,92,252,0.08);
  transform: translateY(-2px);
}

/* ============================================
   CONTACT
   ============================================ */

.section-contact { padding: 12rem 0; }

.contact-heading {
  font-family: var(--font-serif);
  font-size: clamp(3rem, 7vw, 5.5rem);
  color: var(--white);
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
}

.contact-heading em {
  font-style: italic;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.contact-sub {
  font-size: 1.1rem;
  color: var(--gray-2);
  max-width: 500px;
  margin-bottom: 4rem;
}

.contact-links {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.c-link {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 2rem 2.5rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  text-decoration: none;
  transition: all 0.4s var(--ease);
  min-width: 220px;
}

.c-link:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: 0 10px 40px rgba(0,0,0,0.3);
}

.c-link-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--gray-3);
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.c-link-value {
  font-size: 0.95rem;
  color: var(--white);
  font-weight: 500;
}

/* ============================================
   FOOTER
   ============================================ */

.footer {
  position: relative;
  z-index: 2;
  padding: 3rem 0;
  border-top: 1px solid var(--border);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-logo {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  color: var(--white);
}

.footer-text { font-size: 0.8rem; color: var(--gray-3); }
.footer-year { font-family: var(--font-mono); font-size: 0.75rem; color: var(--gray-3); }

/* ============================================
   SOLAR SYSTEM OVERLAY
   ============================================ */

.nav-solar-btn {
  background: none;
  border: 1px solid var(--border-hover);
  color: var(--gray-2);
  padding: 0.4rem 0.9rem;
  border-radius: 100px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  cursor: pointer;
  transition: all 0.3s var(--ease);
  white-space: nowrap;
}

.nav-solar-btn:hover {
  border-color: var(--accent);
  color: var(--white);
  box-shadow: 0 0 20px rgba(124,92,252,0.15);
}

.mm-solar-btn {
  background: none;
  border: 1px solid var(--border-hover);
  color: var(--gray-2);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  padding: 0.6rem 1.2rem;
  border-radius: 100px;
  margin-top: 1rem;
  cursor: pointer;
}

.solar-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: var(--bg);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1), visibility 0.6s;
}

.solar-overlay.active {
  opacity: 1;
  visibility: visible;
}

#solarCanvas {
  width: 100%;
  height: 100%;
  display: block;
}

.solar-hud {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  padding: 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  pointer-events: none;
  z-index: 225;
}

.solar-close {
  pointer-events: auto;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border-hover);
  color: var(--white);
  font-size: 1.4rem;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  cursor: pointer;
  transition: border-color 0.3s, background 0.3s;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-left: auto;
}

.solar-close:hover {
  border-color: var(--accent);
  background: rgba(124,92,252,0.1);
}

.solar-hint {
  pointer-events: none;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--gray-3);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  opacity: 0.6;
  transition: opacity 0.5s;
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
}

.solar-hint.hidden { opacity: 0; }

.solar-labels {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 205;
}

.solar-label {
  position: absolute;
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 600;
  color: rgba(255,255,255,0.95);
  letter-spacing: 0.03em;
  white-space: nowrap;
  pointer-events: none;
  text-shadow: 0 1px 4px rgba(0,0,0,1), 0 0 12px rgba(0,0,0,0.9), 0 0 24px rgba(0,0,0,0.6);
  transition: opacity 0.3s;
  transform: translate(-50%, -100%);
  padding: 4px 10px 6px;
  border-radius: 6px;
  background: radial-gradient(ellipse at center, rgba(0,0,0,0.45) 0%, transparent 70%);
}

.solar-label-sub {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  font-weight: 400;
  color: rgba(180,180,200,0.85);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-top: 3px;
}

.solar-detail {
  position: absolute;
  top: 0;
  right: 0;
  width: 420px;
  max-width: 90vw;
  height: 100%;
  background: rgba(11,11,18,0.94);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-left: 1px solid var(--border);
  padding: 2rem;
  padding-top: 1.5rem;
  transform: translateX(100%);
  transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 220;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}

.solar-detail.active {
  transform: translateX(0);
}

.solar-back {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: none;
  border: 1px solid var(--border-hover);
  color: var(--gray-2);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 0.5rem 1rem;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.3s;
  margin-bottom: 1.5rem;
  width: fit-content;
}

.solar-back:hover {
  border-color: var(--accent);
  color: var(--white);
}

.solar-detail-content h2 {
  font-family: var(--font-serif);
  font-size: 1.8rem;
  color: var(--white);
  margin-bottom: 0.25rem;
}

.solar-detail-content .sd-role {
  font-size: 0.85rem;
  color: var(--accent-light);
  margin-bottom: 0.25rem;
}

.solar-detail-content .sd-date {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--gray-3);
  letter-spacing: 0.1em;
  margin-bottom: 1.25rem;
}

.solar-detail-content .sd-desc {
  font-size: 0.875rem;
  color: var(--gray-2);
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

.solar-detail-content .sd-section-title {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--accent-light);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
  margin-top: 0.5rem;
}

.solar-detail-content .sd-skills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-bottom: 1.5rem;
}

.solar-detail-content .sd-skills span {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  padding: 0.25rem 0.6rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--gray-3);
}

.solar-detail-content .sd-highlights {
  list-style: none;
  padding: 0;
  margin: 0 0 1.5rem;
}

.solar-detail-content .sd-highlights li {
  font-size: 0.82rem;
  color: var(--gray-2);
  line-height: 1.6;
  padding-left: 1rem;
  position: relative;
  margin-bottom: 0.5rem;
}

.solar-detail-content .sd-highlights li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--accent);
}

.solar-detail-content .sd-link {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent);
  text-decoration: none;
  padding: 0.45rem 1rem;
  border: 1px solid rgba(124,92,252,0.3);
  border-radius: 6px;
  transition: all 0.3s;
}

.solar-detail-content .sd-link:hover {
  background: rgba(124,92,252,0.1);
  border-color: var(--accent);
}

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 1024px) {
  .split { grid-template-columns: 1fr; gap: 3rem; }
  .split-left { position: static; }
  .proj-grid { grid-template-columns: repeat(2, 1fr); }
  .proj-card--wide { grid-column: span 2; }
  .skills-orbit { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-burger { display: flex; }
  .hero { padding: 7rem 1.5rem 5rem; }
  .hero-scroll-hint { display: none; }
  .section { padding: 6rem 0; }
  .container { padding: 0 1.5rem; }
  .exp-card { grid-template-columns: 1fr; gap: 1rem; }
  .proj-grid { grid-template-columns: 1fr; }
  .proj-card--wide { grid-column: span 1; }
  .proj-detail-grid { grid-template-columns: 1fr; }
  .skills-orbit { grid-template-columns: 1fr; }
  .contact-links { flex-direction: column; }
  .footer-inner { flex-direction: column; gap: 1rem; text-align: center; }
  .about-stats { flex-wrap: wrap; gap: 2rem; }
  .solar-detail {
    width: 100%;
    max-width: 100%;
    top: auto;
    bottom: 0;
    height: 55vh;
    transform: translateY(100%);
    border-left: none;
    border-top: 1px solid var(--border);
    border-radius: 20px 20px 0 0;
  }
  .solar-detail.active { transform: translateY(0); }
}

@media (max-width: 480px) {
  .hero-line { font-size: 3.5rem; }
  .contact-heading { font-size: 2.5rem; }
}