/* ============================================================
   AMIT PADHAN — Portfolio v3
   Design: Premium Dark | Purple-Blue Accent | Clean & Modern
   ============================================================ */


/* ─── TOKENS ─────────────────────────────────────────────── */
:root {
  /* Palette */
  --clr-bg:          #060810;
  --clr-surface:     #0c0e18;
  --clr-surface-2:   #11131f;
  --clr-border:      rgba(255,255,255,0.08);
  --clr-border-hi:   rgba(34,211,238,0.35);

  --clr-primary:     #22d3ee;   /* cyan */
  --clr-primary-lt:  #67e8f9;
  --clr-secondary:   #38bdf8;   /* sky blue */
  --clr-green:       #10b981;
  --clr-red:         #f43f5e;
  --clr-amber:       #f59e0b;

  --clr-txt:         #f0f4f8;
  --clr-txt-muted:   #64748b;
  --clr-txt-dim:     #334155;

  /* Gradient helpers */
  --grd-accent: linear-gradient(135deg, var(--clr-primary), var(--clr-secondary));
  --grd-card:   linear-gradient(135deg, rgba(34,211,238,.05), rgba(56,189,248,.03));

  /* Radius */
  --r-sm: 8px;
  --r-md: 14px;
  --r-lg: 20px;
  --r-xl: 28px;

  /* Shadows */
  --sh-card: 0 4px 24px rgba(0,0,0,.5);
  --sh-glow: 0 0 40px rgba(34,211,238,.12);

  /* Motion */
  --ease: cubic-bezier(.4,0,.2,1);
  --dur-fast: .18s;
  --dur-med:  .32s;

  /* Fonts */
  --f-body: 'Inter', system-ui, sans-serif;
  --f-mono: 'JetBrains Mono', 'Cascadia Code', monospace;
}

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

html {
  scroll-behavior: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--clr-primary) transparent;
}
html::-webkit-scrollbar       { width: 5px; }
html::-webkit-scrollbar-track { background: transparent; }
html::-webkit-scrollbar-thumb { background: rgba(34,211,238,.5); border-radius: 99px; }

body {
  font-family: var(--f-body);
  background: var(--clr-bg);
  color: var(--clr-txt);
  line-height: 1.65;
  overflow-x: hidden;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

a { text-decoration:none; color:inherit; }
ul { list-style:none; }
img { max-width:100%; display:block; }
button { cursor:pointer; }

/* ─── NOISE + GLOW OVERLAY ───────────────────────────────── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 50% at 50% -5%, rgba(34,211,238,.10) 0%, transparent 65%),
    radial-gradient(ellipse 40% 35% at 90% 85%,  rgba(56,189,248,.07) 0%, transparent 60%);
  pointer-events: none;
  z-index: 0;
}

/* ─── SCROLL PROGRESS ────────────────────────────────────── */
#scroll-progress {
  position: fixed;
  top: 0; left: 0;
  height: 2px;
  width: 0%;
  background: var(--grd-accent);
  z-index: 9999;
  transition: width .1s linear;
}

/* ─── CONTAINER ──────────────────────────────────────────── */
.container {
  width: 92%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1rem;
  position: relative;
  z-index: 1;
}

/* ─── HEADER / NAV ───────────────────────────────────────── */
header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 1rem 2rem;
}

header .glass {
  max-width: 860px;
  margin: 0 auto;
  background: rgba(15,17,23,0.75);
  backdrop-filter: blur(20px) saturate(160%);
  -webkit-backdrop-filter: blur(20px) saturate(160%);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-xl);
  padding: .55rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  box-shadow: 0 8px 32px rgba(0,0,0,.35), 0 0 0 1px rgba(255,255,255,.03);
  transition: border-color var(--dur-med) var(--ease);
}

header .glass:hover {
  border-color: rgba(139,92,246,.2);
}

.logo {
  font-family: var(--f-mono);
  font-size: .95rem;
  font-weight: 700;
  background: var(--grd-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -.02em;
  flex-shrink: 0;
}

.site-nav { display:flex; align-items:center; }

.nav-links {
  display: flex;
  gap: .15rem;
}

.nav-links a {
  padding: .38rem .9rem;
  font-size: .82rem;
  font-weight: 500;
  color: var(--clr-txt-muted);
  border-radius: var(--r-xl);
  transition: background var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease), opacity var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease);
  letter-spacing: .01em;
}

.nav-links a:hover {
  color: var(--clr-txt);
  background: rgba(255,255,255,.06);
}

.nav-links a.active {
  color: var(--clr-bg);
  background: var(--clr-primary);
  font-weight: 600;
  box-shadow: 0 2px 12px rgba(139,92,246,.35);
}

#theme-toggle {
  background: rgba(255,255,255,.05);
  border: 1px solid var(--clr-border);
  color: var(--clr-txt);
  font-size: .9rem;
  padding: .3rem;
  border-radius: 50%;
  width: 32px; height: 32px;
  display: flex; align-items:center; justify-content:center;
  transition: background var(--dur-med) var(--ease), color var(--dur-med) var(--ease), border-color var(--dur-med) var(--ease), transform var(--dur-med) var(--ease), opacity var(--dur-med) var(--ease), box-shadow var(--dur-med) var(--ease);
  flex-shrink: 0;
}
#theme-toggle:hover {
  background: rgba(139,92,246,.15);
  border-color: var(--clr-primary);
  transform: rotate(20deg);
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--clr-txt);
  font-size: 1.2rem;
  padding: .25rem;
}

/* ─── MAIN ───────────────────────────────────────────────── */
main {
  padding-top: 105px;
  flex: 1;
  position: relative;
  z-index: 1;
}

/* ─── HERO — SPLIT LAYOUT ────────────────────────────────── */
.hero {
  min-height: 92vh;
  display: flex;
  align-items: center;
}

.hero .container {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: 5rem;
  padding-top: 2rem;
  padding-bottom: 3rem;
}

/* Left column */
.hero-left {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.25rem;
}

/* Profile: 220px circle with prominent glow */
.profile-wrapper {
  width: 220px;
  height: 220px;
  border-radius: 50%;
  overflow: hidden;
  border: 2px solid rgba(34,211,238,.45);
  box-shadow: 0 0 0 10px rgba(34,211,238,.07), 0 0 60px rgba(34,211,238,.15);
  flex-shrink: 0;
  transition: box-shadow var(--dur-med) var(--ease);
}
.profile-wrapper:hover {
  box-shadow: 0 0 0 10px rgba(34,211,238,.12), 0 0 80px rgba(34,211,238,.25);
}

.profile-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
  display: block;
}

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

/* Status badge */
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  padding: .3rem .9rem;
  background: rgba(16,185,129,.1);
  border: 1px solid rgba(16,185,129,.2);
  border-radius: var(--r-xl);
  font-size: .75rem;
  font-weight: 500;
  color: var(--clr-green);
  letter-spacing: .04em;
  text-transform: uppercase;
}

.hero-badge::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--clr-green);
  box-shadow: 0 0 8px var(--clr-green);
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%,100% { opacity:1; transform:scale(1); }
  50%      { opacity:.5; transform:scale(.8); }
}

.hero-title {
  font-size: clamp(2.6rem, 6vw, 4.2rem);
  font-weight: 700;
  letter-spacing: -.04em;
  line-height: 1.1;
  color: var(--clr-txt);
}

.hero-title .name-highlight {
  display: inline-block;
  background: var(--grd-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-tagline {
  font-family: var(--f-mono);
  font-size: .92rem;
  color: var(--clr-primary);
  letter-spacing: .03em;
  opacity: .9;
  min-height: 1.5em;
  border-right: 2px solid var(--clr-primary);
  display: inline;
  padding-right: 3px;
  transition: border-color .5s;
}
.hero-tagline.cursor-hide { border-right-color: transparent; }

.hero-subtitle {
  font-size: 1.05rem;
  color: var(--clr-txt-muted);
  max-width: 520px;
  line-height: 1.8;
}

/* Skill tags */
.skill-list {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
}

.skill-tag {
  font-size: .75rem;
  font-family: var(--f-mono);
  padding: .28rem .8rem;
  border-radius: var(--r-sm);
  background: rgba(139,92,246,.08);
  border: 1px solid rgba(139,92,246,.18);
  color: var(--clr-primary-lt);
  transition: background var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease), opacity var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease);
}

.skill-tag:hover {
  background: rgba(139,92,246,.18);
  border-color: var(--clr-primary);
  transform: translateY(-2px);
}

/* Buttons */
.hero-actions {
  display: flex;
  gap: .85rem;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  padding: .72rem 1.6rem;
  border-radius: var(--r-xl);
  font-weight: 600;
  font-size: .9rem;
  font-family: var(--f-body);
  border: none;
  transition: background var(--dur-med) var(--ease), color var(--dur-med) var(--ease), border-color var(--dur-med) var(--ease), transform var(--dur-med) var(--ease), opacity var(--dur-med) var(--ease), box-shadow var(--dur-med) var(--ease);
  letter-spacing: .01em;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--clr-primary);
  color: #0a0f1e;
  box-shadow: 0 4px 18px rgba(34,211,238,.3);
}
.btn-primary:hover {
  background: var(--clr-primary-lt);
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(34,211,238,.45);
}

.btn-outline {
  background: transparent;
  color: var(--clr-txt);
  border: 1px solid var(--clr-border);
}
.btn-outline:hover {
  border-color: var(--clr-primary);
  color: var(--clr-primary);
  background: rgba(34,211,238,.07);
  transform: translateY(-2px);
}

.resume-btn { gap: .5rem; }

/* Mobile hero stacked */
@media (max-width: 700px) {
  .hero .container {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 2rem;
  }
  .hero-left { flex-direction: column; align-items: center; }
  .hero-social { flex-direction: row; justify-content: center; }
  .hero-right { align-items: center; }
  .skill-list { justify-content: center; }
  .hero-actions { justify-content: center; }
  .profile-wrapper { width: 160px; height: 160px; }
}

/* ─── ANIMATIONS ─────────────────────────────────────────── */
.fade-in {
  animation: fadeUp .5s var(--ease) forwards;
}

@keyframes fadeUp {
  from { opacity:0; transform:translateY(16px); }
  to   { opacity:1; transform:translateY(0); }
}

.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity .5s var(--ease), transform .5s var(--ease);
}
.reveal.active {
  opacity: 1;
  transform: translateY(0);
}
.reveal-delay-1 { transition-delay: .08s; }
.reveal-delay-2 { transition-delay: .16s; }
.reveal-delay-3 { transition-delay: .24s; }
.reveal-delay-4 { transition-delay: .32s; }

.floating {
  animation: float 5s ease-in-out infinite;
}
@keyframes float {
  0%,100% { transform: translateY(0); }
  50%     { transform: translateY(-8px); }
}

/* ─── SECTION TITLES ─────────────────────────────────────── */
section { padding: 5rem 0; }

.section-title {
  text-align: center;
  margin-bottom: 3rem;
}
.section-title span {
  display: inline-block;
  font-family: var(--f-mono);
  font-size: .72rem;
  text-transform: uppercase;
  letter-spacing: 3px;
  color: var(--clr-primary);
  padding: .28rem .85rem;
  background: rgba(139,92,246,.08);
  border: 1px solid rgba(139,92,246,.15);
  border-radius: var(--r-xl);
  margin-bottom: .65rem;
}
.section-title h2 {
  font-size: clamp(1.6rem, 3.5vw, 2.1rem);
  font-weight: 700;
  letter-spacing: -.03em;
  color: var(--clr-txt);
}

/* ─── GLASS CARDS ────────────────────────────────────────── */
.glass-card {
  background: var(--grd-card), var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-lg);
  padding: 1.8rem;
  transition: transform var(--dur-med) var(--ease),
              box-shadow var(--dur-med) var(--ease),
              border-color var(--dur-med) var(--ease);
  position: relative;
}
.glass-card:hover {
  transform: translateY(-5px);
  border-color: rgba(139,92,246,.22);
  box-shadow: var(--sh-card), var(--sh-glow);
}

/* ─── SKILLS GRID ────────────────────────────────────────── */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.25rem;
}

.skills-grid h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--clr-primary-lt);
  margin-bottom: 1.1rem;
  padding-bottom: .7rem;
  border-bottom: 1px solid var(--clr-border);
  display: flex;
  align-items: center;
  gap: .4rem;
}

.skills-grid li {
  font-size: .88rem;
  color: var(--clr-txt-muted);
  padding: .3rem 0;
  padding-left: 1rem;
  position: relative;
  transition: color var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease);
}
.skills-grid li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--clr-primary);
  font-size: .75rem;
}
.skills-grid li:hover {
  color: var(--clr-txt);
  transform: translateX(4px);
}

/* ─── LEARNING CARDS ─────────────────────────────────────── */
.learning-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.25rem;
}

.learning-card {
  display: flex;
  flex-direction: column;
  gap: .7rem;
}

.learning-icon {
  font-size: 2rem;
  line-height: 1;
}

.learning-card h3 {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--clr-txt);
  margin: 0;
}

.learning-card p {
  font-size: .88rem;
  color: var(--clr-txt-muted);
  line-height: 1.6;
  flex: 1;
}

.learning-progress {
  width: 100%;
  height: 5px;
  background: rgba(255,255,255,.06);
  border-radius: var(--r-xl);
  overflow: hidden;
}

.progress-bar {
  width: 0;
  height: 100%;
  border-radius: var(--r-xl);
  background: var(--grd-accent);
  transition: width 1.5s var(--ease);
}
.learning-card.active .progress-bar { width: var(--progress); }

.progress-label {
  font-size: .72rem;
  font-family: var(--f-mono);
  color: var(--clr-txt-muted);
}

/* ─── TERMINAL WIDGET ────────────────────────────────────── */
.terminal-widget {
  padding: 0 !important;
  overflow: hidden;
}

.terminal-header {
  display: flex;
  align-items: center;
  gap: .75rem;
  padding: .7rem 1rem;
  background: rgba(0,0,0,.25);
  border-bottom: 1px solid var(--clr-border);
}

.terminal-dots { display:flex; gap:6px; }
.dot            { width:11px; height:11px; border-radius:50%; }
.dot-red        { background: #ff5f57; }
.dot-yellow     { background: #febc2e; }
.dot-green      { background: #28c840; }

.terminal-title {
  font-family: var(--f-mono);
  font-size: .78rem;
  color: var(--clr-txt-muted);
}

.terminal-body {
  padding: 1.25rem 1.5rem;
  font-family: var(--f-mono);
  font-size: .82rem;
  line-height: 1.9;
}

.terminal-line { white-space: pre-wrap; }

.terminal-prompt { color: var(--clr-primary); font-weight: 700; }
.terminal-cmd    { color: var(--clr-secondary); }
.terminal-output-text { color: var(--clr-txt-muted); padding-left: 1rem; }

.terminal-cursor {
  display: inline-block;
  color: var(--clr-primary);
  animation: blink 1s step-end infinite;
}
@keyframes blink {
  0%,100% { opacity:1; }
  50%     { opacity:0; }
}

/* Typing animation keyframes */
.typing-anim {
  overflow: hidden;
  white-space: nowrap;
  width: 0;
  animation: typing 1s steps(30) forwards;
}
.fade-in-anim { opacity:0; animation: fadeInText .4s ease forwards; }

@keyframes typing    { to { width: 100%; } }
@keyframes fadeInText { to { opacity: 1; } }

.delay-1 { animation-delay: .3s; }
.delay-2 { animation-delay: .9s; }
.delay-3 { animation-delay: 1.3s; }
.delay-4 { animation-delay: 1.5s; }
.delay-5 { animation-delay: 2.1s; }
.delay-6 { animation-delay: 2.5s; }
.delay-7 { animation-delay: 2.7s; }
.delay-8 { animation-delay: 3.3s; }
.delay-9 { animation-delay: 3.7s; }

/* ─── PROJECT CARDS ──────────────────────────────────────── */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}

.project-card {
  background: var(--grd-card), var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-lg);
  overflow: hidden;
  transition: background var(--dur-med) var(--ease), color var(--dur-med) var(--ease), border-color var(--dur-med) var(--ease), transform var(--dur-med) var(--ease), opacity var(--dur-med) var(--ease), box-shadow var(--dur-med) var(--ease);
}
.project-card:hover {
  transform: translateY(-6px);
  border-color: rgba(139,92,246,.25);
  box-shadow: var(--sh-card), var(--sh-glow);
}

.project-image { overflow: hidden; }
.project-image img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  transition: transform .5s var(--ease);
}
.project-card:hover .project-image img { transform: scale(1.05); }

.project-content { padding: 1.5rem; }
.project-content h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: .5rem;
  transition: color var(--dur-fast) var(--ease);
}
.project-card:hover .project-content h3 { color: var(--clr-primary-lt); }
.project-content p {
  font-size: .88rem;
  color: var(--clr-txt-muted);
  line-height: 1.65;
}

.tech-stack { margin-top: 1rem; }
.tech-label {
  font-size: .7rem;
  font-weight: 600;
  color: var(--clr-txt-muted);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  display: block;
  margin-bottom: .35rem;
}
.tech-tags { display:flex; gap:.4rem; flex-wrap:wrap; }
.tech-tag {
  font-size: .68rem;
  font-family: var(--f-mono);
  padding: .18rem .55rem;
  background: rgba(139,92,246,.08);
  border: 1px solid rgba(139,92,246,.14);
  border-radius: var(--r-sm);
  color: var(--clr-primary-lt);
  transition: background var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease), opacity var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease);
}
.tech-tag:hover {
  background: rgba(139,92,246,.18);
  border-color: var(--clr-primary);
}

.project-links { display:flex; gap:.65rem; margin-top:1.25rem; flex-wrap:wrap; }
.link-btn {
  display: inline-flex;
  align-items: center;
  padding: .42rem 1rem;
  border-radius: var(--r-xl);
  font-size: .78rem;
  font-weight: 600;
  transition: background var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease), opacity var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease);
}
.link-btn-outline {
  border: 1px solid var(--clr-border);
  color: var(--clr-txt-muted);
}
.link-btn-outline:hover {
  border-color: var(--clr-primary);
  color: var(--clr-primary);
  transform: translateY(-1px);
}
.link-btn-fill {
  background: var(--clr-primary);
  color: #fff;
  border: 1px solid transparent;
}
.link-btn-fill:hover {
  background: var(--clr-primary-lt);
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(139,92,246,.3);
}

/* ─── MODAL ──────────────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(0,0,0,.75);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: background var(--dur-med) var(--ease), color var(--dur-med) var(--ease), border-color var(--dur-med) var(--ease), transform var(--dur-med) var(--ease), opacity var(--dur-med) var(--ease), box-shadow var(--dur-med) var(--ease);
}
.modal-overlay.active { opacity:1; visibility:visible; }

.modal-content {
  background: var(--clr-surface-2);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-xl);
  padding: 2.25rem;
  max-width: 680px;
  width: 92%;
  max-height: 82vh;
  overflow-y: auto;
  position: relative;
  transform: translateY(20px) scale(.97);
  transition: transform var(--dur-med) var(--ease);
  box-shadow: 0 24px 60px rgba(0,0,0,.5);
}
.modal-overlay.active .modal-content { transform: translateY(0) scale(1); }

.modal-close {
  position: absolute;
  top: 1rem; right: 1rem;
  background: rgba(255,255,255,.05);
  border: 1px solid var(--clr-border);
  color: var(--clr-txt);
  font-size: 1.3rem;
  width: 32px; height: 32px;
  border-radius: 50%;
  display: flex; align-items:center; justify-content:center;
  transition: background var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease), opacity var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease);
}
.modal-close:hover { background: rgba(139,92,246,.15); border-color:var(--clr-primary); }

.modal-title  { color: var(--clr-primary-lt); margin-bottom: 0; }
.modal-header { margin-bottom: 1.25rem; padding-right: 2.5rem; }
.modal-body-content { color: var(--clr-txt-muted); line-height: 1.8; }
.modal-body-content h4 { color: var(--clr-primary-lt); margin-top: 1.1rem; font-size:.95rem; }
.modal-body-content ul { list-style: disc; margin-left: 1.4rem; margin-top:.5rem; }
.modal-body-content img { border-radius: var(--r-sm); border: 1px solid var(--clr-border); margin-top:.5rem; }

/* ─── CONTACT ────────────────────────────────────────────── */
.contact-container { max-width: 580px; margin: 0 auto; }
.contact-text { color: var(--clr-txt-muted); text-align:center; margin-bottom:2rem; font-size:1rem; }

.contact-form { display:flex; flex-direction:column; gap:1.1rem; }
.form-group { display:flex; flex-direction:column; gap:.38rem; position:relative; }
.form-group label {
  font-family: var(--f-mono);
  font-size: .73rem;
  font-weight: 600;
  letter-spacing: .04em;
  color: var(--clr-txt-muted);
  transition: color var(--dur-fast) var(--ease);
  text-transform: uppercase;
}
.form-group:focus-within label { color: var(--clr-primary); }

.form-input, .form-textarea {
  padding: .78rem 1rem;
  border-radius: var(--r-md);
  border: 1px solid var(--clr-border);
  background: rgba(255,255,255,.03);
  color: var(--clr-txt);
  font-family: var(--f-body);
  font-size: .92rem;
  transition: border-color var(--dur-med) var(--ease), box-shadow var(--dur-med) var(--ease);
}
.form-input:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--clr-primary);
  box-shadow: 0 0 0 3px rgba(139,92,246,.12);
  background: rgba(139,92,246,.05);
}
.form-textarea { resize: vertical; min-height: 128px; }

.social-connect { text-align:center; margin-top:2rem; padding-top:1.75rem; border-top:1px solid var(--clr-border); }
.social-connect h4 { color:var(--clr-txt-muted); font-size:.82rem; margin-bottom:.85rem; }
.connect-links { display:flex; gap:1.5rem; justify-content:center; flex-wrap:wrap; }
.connect-links a { color:var(--clr-primary); font-weight:600; position:relative; padding-bottom:2px; }
.connect-links a::after {
  content:'';
  position:absolute; bottom:0; left:0;
  width:0; height:1px;
  background:var(--clr-primary);
  transition: width var(--dur-med) var(--ease);
}
.connect-links a:hover::after { width:100%; }

/* ─── ABOUT PAGE ─────────────────────────────────────────── */
.about-card { max-width:880px; margin:0 auto; display:flex; flex-direction:column; gap:2.5rem; }
.about-card > div { padding:.5rem 0; }
.about-card > div > h3 { position:relative; padding-left:1rem; }
.about-card > div > h3::before {
  content:'';
  position:absolute; left:0; top:.15em; bottom:.15em;
  width:3px;
  background: var(--grd-accent);
  border-radius:2px;
}

.about-text { color:var(--clr-txt-muted); margin-top:.65rem; line-height:1.85; font-size:.95rem; }
.about-subtitle { color:var(--clr-primary-lt); font-size:.9rem; border-bottom:1px solid var(--clr-border); padding-bottom:.5rem; margin-bottom:.7rem; }
.about-list { color:var(--clr-txt-muted); line-height:2.1; }
.about-list li { transition: color var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease); cursor:default; }
.about-list li:hover { color:var(--clr-txt); transform:translateX(4px); }

.about-grid      { display:grid; grid-template-columns:repeat(auto-fit,minmax(200px,1fr)); gap:2rem; }
.about-grid-wide { display:grid; grid-template-columns:repeat(auto-fit,minmax(245px,1fr)); gap:2rem; }

.education-timeline { margin-top:1rem; border-left:2px solid var(--clr-primary); padding-left:1.5rem; position:relative; }
.education-timeline::before {
  content:'';
  position:absolute; left:-5px; top:0;
  width:8px; height:8px;
  border-radius:50%;
  background:var(--clr-primary);
  box-shadow: 0 0 10px rgba(139,92,246,.4);
}
.education-degree { font-size:1.05rem; }
.education-meta { color:var(--clr-txt-muted); margin-bottom:.3rem; font-size:.92rem; }
.education-year {
  font-family:var(--f-mono); font-size:.78rem; opacity:.7;
  padding:.13rem .55rem;
  background:rgba(139,92,246,.06);
  border-radius:var(--r-xl);
  display:inline-block; margin-top:.2rem;
}
.resume-download { text-align:center; margin-top:1.5rem; }

/* Interests */
.interests-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:1rem; }
.interest-item { display:flex; align-items:center; gap:.7rem; padding:.8rem 1rem; border-radius:var(--r-md); background:rgba(139,92,246,.04); border:1px solid var(--clr-border); font-size:.88rem; color:var(--clr-txt-muted); transition:all var(--dur-fast) var(--ease); }
.interest-item:hover { border-color:rgba(139,92,246,.25); color:var(--clr-txt); background:rgba(139,92,246,.08); transform:translateY(-2px); }
.interest-icon { font-size:1.3rem; flex-shrink:0; }

/* Cert grid */
.cert-grid { display:grid; grid-template-columns:repeat(auto-fit,minmax(200px,1fr)); gap:1rem; }
.cert-card { padding:1.25rem; border-radius:var(--r-md); border:1px solid var(--clr-border); background:rgba(139,92,246,.04); text-align:center; transition:all var(--dur-fast) var(--ease); }
.cert-card:hover { border-color:rgba(139,92,246,.25); transform:translateY(-3px); }
.cert-name { font-weight:600; font-size:.92rem; margin-bottom:.3rem; }
.cert-provider { font-size:.78rem; color:var(--clr-txt-muted); }
.cert-status { display:inline-block; margin-top:.5rem; font-size:.7rem; font-family:var(--f-mono); padding:.18rem .6rem; border-radius:var(--r-xl); }
.cert-status.active-cert { background:rgba(16,185,129,.1); color:var(--clr-green); border:1px solid rgba(16,185,129,.2); }
.cert-status.pending { background:rgba(245,158,11,.1); color:var(--clr-amber); border:1px solid rgba(245,158,11,.2); }

/* Semester snapshot */
.semester-snapshot { display:grid; grid-template-columns:repeat(auto-fit,minmax(180px,1fr)); gap:1rem; }
.semester-subject { padding:1rem; border-radius:var(--r-md); background:rgba(255,255,255,.02); border:1px solid var(--clr-border); font-size:.88rem; }
.subject-name { font-weight:600; margin-bottom:.25rem; }
.subject-status { font-size:.73rem; font-family:var(--f-mono); color:var(--clr-primary); }

/* Stats */
.stats-grid { display:grid; grid-template-columns:repeat(4,1fr); gap:1.25rem; }
.stat-card  { text-align:center; padding:1.75rem 1rem; }
.stat-number {
  display:block; font-family:var(--f-mono); font-size:2.8rem; font-weight:700;
  background:var(--grd-accent);
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
  background-clip:text;
  line-height:1.1;
}
.stat-label { display:block; margin-top:.4rem; font-size:.82rem; color:var(--clr-txt-muted); font-family:var(--f-mono); }

/* ─── LABS PAGE ──────────────────────────────────────────── */
.labs-container { display:flex; flex-direction:column; gap:1.75rem; max-width:860px; margin:0 auto; }
.lab-header { border-bottom:1px solid var(--clr-border); padding-bottom:.85rem; margin-bottom:1.25rem; display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:.5rem; }
.lab-title  { margin-bottom:0; font-size:1.2rem; }
.lab-platform { font-family:var(--f-mono); font-size:.68rem; letter-spacing:.06em; text-transform:uppercase; padding:.15rem .5rem; border-radius:var(--r-sm); }
.lab-platform-htb { color:var(--clr-green); background:rgba(16,185,129,.08); }
.lab-platform-thm { color:var(--clr-amber); background:rgba(245,158,11,.08); }
.lab-difficulty { font-size:.7rem; padding:.18rem .65rem; border-radius:var(--r-xl); font-weight:700; text-transform:uppercase; letter-spacing:.04em; }
.lab-difficulty-easy        { background:var(--clr-green); color:#060610; }
.lab-difficulty-medium      { background:var(--clr-amber); color:#060610; }
.lab-difficulty-fundamental { background:var(--clr-primary); color:#fff; }

.lab-grid { display:grid; grid-template-columns:1fr; gap:1.1rem; }
.lab-section-title { font-size:.8rem; color:var(--clr-txt-muted); margin-bottom:.35rem; text-transform:uppercase; letter-spacing:1.5px; }
.lab-tools { display:flex; gap:.4rem; flex-wrap:wrap; margin-top:.4rem; }
.lab-tool-tag { font-size:.7rem; border:1px solid var(--clr-border); padding:.18rem .5rem; border-radius:var(--r-sm); color:var(--clr-txt-muted); transition:all var(--dur-fast) var(--ease); }
.lab-tool-tag:hover { border-color:var(--clr-primary); color:var(--clr-primary); }
.lab-steps { margin-left:1.4rem; margin-top:.4rem; color:var(--clr-txt-muted); line-height:1.9; list-style:decimal; }
.lab-steps li { padding:.12rem 0; }
.lab-learning { font-style:italic; color:var(--clr-txt-muted); padding:.7rem 1rem; background:rgba(139,92,246,.05); border-left:2px solid var(--clr-primary); border-radius:0 var(--r-sm) var(--r-sm) 0; }
.lab-footer { margin-top:1.25rem; padding-top:.85rem; border-top:1px solid var(--clr-border); }
.lab-link { color:var(--clr-primary); font-weight:600; font-size:.85rem; transition:all var(--dur-fast) var(--ease); display:inline-flex; align-items:center; gap:.25rem; }
.lab-link:hover { gap:.5rem; color:var(--clr-primary-lt); }

/* ─── SCROLL TO TOP ──────────────────────────────────────── */
.scroll-top-btn {
  position:fixed; bottom:2rem; right:2rem;
  width:40px; height:40px;
  border-radius:50%;
  background:var(--clr-primary);
  color:#fff;
  border:none;
  display:flex; align-items:center; justify-content:center;
  font-size:1rem;
  box-shadow: 0 4px 18px rgba(139,92,246,.35);
  opacity:0; visibility:hidden; transform:translateY(10px);
  transition:all var(--dur-med) var(--ease);
  z-index:999;
}
.scroll-top-btn.visible { opacity:1; visibility:visible; transform:translateY(0); }
.scroll-top-btn:hover { transform:translateY(-3px) scale(1.08); box-shadow:0 6px 24px rgba(139,92,246,.5); }

/* ─── FOOTER ─────────────────────────────────────────────── */
.site-footer {
  padding:3rem 0 2rem;
  text-align:center;
  border-top:1px solid var(--clr-border);
  margin-top:4rem;
  color:var(--clr-txt-muted);
  font-size:.85rem;
  position:relative;
  z-index:1;
}
.site-footer p { opacity:.65; }
.footer-cta {
  font-size:1.05rem;
  color:var(--clr-txt);
  opacity:1 !important;
  margin-bottom:.85rem;
}
.footer-contact-btn { display:inline-flex; margin-bottom:0; }
.footer-divider {
  width:60px; height:1px;
  background:var(--clr-border);
  margin:1.5rem auto;
}
.footer-copy { margin-top:.75rem; font-size:.8rem; opacity:.45 !important; }

.social-links { display:flex; justify-content:center; gap:1rem; margin-top:1rem; }
.social-links a {
  color:var(--clr-txt-muted);
  width:38px; height:38px;
  border-radius:50%;
  border:1px solid var(--clr-border);
  display:flex; align-items:center; justify-content:center;
  transition:all var(--dur-med) var(--ease);
}
.social-links a:hover {
  color:var(--clr-primary);
  border-color:var(--clr-primary);
  transform:translateY(-3px);
  background:rgba(139,92,246,.07);
  box-shadow:0 4px 14px rgba(139,92,246,.2);
}
.social-links a svg { width:17px; height:17px; }

/* ─── LIGHT THEME ────────────────────────────────────────── */
[data-theme="light"] {
  --clr-bg:        #f8f9fc;
  --clr-surface:   #ffffff;
  --clr-surface-2: #f1f3f9;
  --clr-border:    rgba(0,0,0,.08);
  --clr-txt:       #0f0f1a;
  --clr-txt-muted: #6b7280;
  --grd-card: linear-gradient(135deg,rgba(139,92,246,.04),rgba(6,182,212,.025));
}
[data-theme="light"] body::before {
  background:
    radial-gradient(ellipse 80% 50% at 50% -10%,rgba(139,92,246,.07) 0%,transparent 60%),
    radial-gradient(ellipse 40% 40% at 90% 80%,rgba(6,182,212,.04) 0%,transparent 60%);
}
[data-theme="light"] header .glass {
  background: rgba(255,255,255,.8);
  border-color: rgba(0,0,0,.07);
}
[data-theme="light"] .nav-links a      { color:rgba(0,0,0,.5); }
[data-theme="light"] .nav-links a:hover { color:var(--clr-txt); background:rgba(0,0,0,.05); }
[data-theme="light"] .form-input,
[data-theme="light"] .form-textarea    { background:rgba(0,0,0,.02); }
[data-theme="light"] .form-input:focus,
[data-theme="light"] .form-textarea:focus { background:rgba(139,92,246,.04); }
[data-theme="light"] .terminal-body    { background:#1e1e2e; color:#cdd6f4; border-radius:0 0 var(--r-lg) var(--r-lg); }

/* ─── TEXT GRADIENT FLOW ─────────────────────────────────── */
.text-gradient-flow {
  background: var(--grd-accent);
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gradientShift 4s linear infinite;
}
@keyframes gradientShift {
  0%   { background-position: 0% 50%; }
  100% { background-position: 200% 50%; }
}

/* ─── SPOTLIGHT CARDS ────────────────────────────────────── */
.spotlight-card { position:relative; overflow:hidden; }
.spotlight-card::after {
  content:'';
  position:absolute; inset:0;
  background:radial-gradient(250px circle at var(--mouse-x,50%) var(--mouse-y,50%), rgba(139,92,246,.06), transparent 60%);
  pointer-events:none;
  opacity:0;
  transition:opacity .4s ease;
}
.spotlight-card:hover::after { opacity:1; }

/* ─── PAGE TRANSITION ────────────────────────────────────── */
.page-transition { animation: pageSlideIn .4s var(--ease) forwards; }
@keyframes pageSlideIn {
  from { opacity:0; transform:translateY(14px); }
  to   { opacity:1; transform:translateY(0); }
}

/* ─── RESPONSIVE ─────────────────────────────────────────── */
@media (max-width: 1024px) {
  .stats-grid       { grid-template-columns: repeat(2,1fr); }
  .interests-grid   { grid-template-columns: repeat(2,1fr); }
}

@media (max-width: 768px) {
  .mobile-menu-btn { display:block; }

  .site-nav {
    position:absolute;
    top:calc(100% + .5rem); left:0; right:0;
    width:92%; margin:0 auto;
    opacity:0; visibility:hidden;
    transform:translateY(-12px) scale(.98);
    transition:all var(--dur-med) var(--ease);
    z-index:999;
    pointer-events:none;
  }
  .site-nav.active { opacity:1; visibility:visible; transform:translateY(0) scale(1); pointer-events:auto; }

  .nav-links {
    flex-direction:column !important;
    background:rgba(15,17,23,.92) !important;
    backdrop-filter:blur(30px);
    padding:.75rem !important;
    border:1px solid var(--clr-border) !important;
    box-shadow:0 16px 48px rgba(0,0,0,.4);
    border-radius:var(--r-lg) !important;
    gap:.1rem !important;
  }
  .nav-links li  { width:100%; text-align:center; }
  .nav-links a   { display:block; width:100%; padding:.7rem; font-size:.9rem; }

  main { padding-top: 80px; }

  .hero .container { gap:1.1rem; }
  .hero-title { font-size:2.2rem; }
  .hero-subtitle { font-size:.95rem; }
  .hero-actions { flex-direction:column; align-items:stretch; gap:.65rem; }

  .profile-wrapper { width:120px; height:120px; }

  .skills-grid, .learning-grid { grid-template-columns:1fr; }
  .stats-grid  { grid-template-columns:repeat(2,1fr); gap:1rem; }
  .stat-number { font-size:2.2rem; }
  .interests-grid { grid-template-columns:repeat(2,1fr); }
  .cert-grid   { grid-template-columns:1fr; }
  .projects-grid { grid-template-columns:1fr; }
  .about-grid, .about-grid-wide { grid-template-columns:1fr; }
  .semester-snapshot { grid-template-columns:1fr; }

  .terminal-body { padding:1rem; font-size:.75rem; }
  .glass-card    { padding:1.4rem; }
  .section-title { margin-bottom:2rem; }
  .scroll-top-btn { bottom:1.5rem; right:1.5rem; width:36px; height:36px; font-size:.95rem; }
}

@media (max-width: 400px) {
  .container { width:95%; padding:0 .5rem; }
  .hero-title { font-size:1.85rem; }
  .btn { padding:.65rem 1.25rem; font-size:.85rem; }
  .lab-header { flex-direction:column; align-items:flex-start; gap:.4rem; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.01ms !important;
  }
  .floating { animation:none; }
  .reveal   { opacity:1; transform:none; }
}

@media print {
  header, .scroll-top-btn, #scroll-progress { display:none !important; }
  body::before { display:none; }
  .glass-card, .project-card { backdrop-filter:none; background:#fff; border:1px solid #ddd; }
}

/* ─── ABOUT SNIPPET ──────────────────────────────────────── */
.about-snippet-section { padding-top:0; }
.about-snippet {
  display:grid;
  grid-template-columns:1fr auto;
  gap:3rem;
  align-items:center;
  padding:2.5rem;
}
.section-label {
  font-family:var(--f-mono);
  font-size:.72rem;
  text-transform:uppercase;
  letter-spacing:3px;
  color:var(--clr-primary);
  margin-bottom:.5rem;
}
.about-snippet-title {
  font-size:clamp(1.4rem,3vw,1.9rem);
  font-weight:700;
  letter-spacing:-.03em;
  margin-bottom:.85rem;
}
.about-snippet-text p {
  color:var(--clr-txt-muted);
  line-height:1.8;
  margin-bottom:1.25rem;
  font-size:.97rem;
}
.about-more-btn { margin-top:.25rem; }
@media (max-width: 900px) {
  .about-snippet { grid-template-columns:1fr; gap:2rem; }
  .thm-card { width:100%; }
}

/* ─── THM CARD ───────────────────────────────────────────── */
.thm-card { width:260px; flex-shrink:0; }
.thm-header { display:flex; align-items:center; gap:.85rem; margin-bottom:1.25rem; }
.thm-logo { font-size:2rem; line-height:1; }
.thm-platform { font-weight:700; font-size:.95rem; color:var(--clr-txt); }
.thm-user { font-family:var(--f-mono); font-size:.75rem; color:var(--clr-primary); }
.thm-stats { display:flex; gap:1rem; margin-bottom:1.25rem; }
.thm-stat { text-align:center; flex:1; }
.thm-stat-num {
  display:block;
  font-family:var(--f-mono);
  font-size:1.5rem;
  font-weight:700;
  background:var(--grd-accent);
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
  background-clip:text;
}
.thm-stat-label { font-size:.72rem; color:var(--clr-txt-muted); text-transform:uppercase; letter-spacing:1px; }
.thm-link {
  display:block;
  text-align:center;
  font-size:.82rem;
  font-weight:600;
  color:var(--clr-primary);
  padding:.5rem;
  border:1px solid rgba(34,211,238,.25);
  border-radius:var(--r-md);
  transition:all var(--dur-fast) var(--ease);
}
.thm-link:hover { background:rgba(34,211,238,.07); border-color:var(--clr-primary); }

/* ─── FEATURED PROJECTS ──────────────────────────────────── */
.featured-grid { grid-template-columns:repeat(auto-fit,minmax(260px,1fr)); }
.project-card {
  background:var(--grd-card),var(--clr-surface);
  border:1px solid var(--clr-border);
  border-radius:var(--r-lg);
  padding:1.75rem;
  display:flex;
  flex-direction:column;
  gap:.85rem;
  transition:all var(--dur-med) var(--ease);
}
.project-card:hover {
  transform:translateY(-6px);
  border-color:rgba(34,211,238,.25);
  box-shadow:var(--sh-card),var(--sh-glow);
}
.project-card-top { display:flex; justify-content:space-between; align-items:flex-start; }
.project-icon { font-size:2rem; line-height:1; }
.project-meta-tags { display:flex; gap:.4rem; flex-wrap:wrap; }
.project-content { flex:1; }
.project-content h3 {
  font-size:1.05rem;
  font-weight:600;
  margin-bottom:.4rem;
  color:var(--clr-txt);
  transition:color var(--dur-fast) var(--ease);
}
.project-card:hover .project-content h3 { color:var(--clr-primary-lt); }
.project-content p { font-size:.88rem; color:var(--clr-txt-muted); line-height:1.65; }
.view-all-wrap { text-align:center; margin-top:2rem; }

/* ─── CERT GRID HOME ─────────────────────────────────────── */
.cert-grid-home {
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(200px,1fr));
  gap:1.25rem;
}
.cert-card-home {
  display:flex;
  flex-direction:column;
  align-items:center;
  text-align:center;
  gap:.5rem;
  padding:1.75rem 1.25rem;
}
.cert-icon-lg { font-size:2.2rem; line-height:1; }

/* ─── INTERACTIVE TERMINAL ───────────────────────────────── */
.terminal-input-field {
  background:transparent;
  border:none;
  outline:none;
  color:var(--clr-secondary);
  font-family:var(--f-mono);
  font-size:.82rem;
  caret-color:transparent;
  width:260px;
  margin-left:.4rem;
}
.terminal-hint {
  text-align:center;
  margin-top:1rem;
  font-size:.8rem;
  color:var(--clr-txt-muted);
}
.terminal-hint code {
  font-family:var(--f-mono);
  color:var(--clr-primary);
  background:rgba(34,211,238,.07);
  padding:.1rem .35rem;
  border-radius:4px;
}

/* ─── HERO SOCIAL ────────────────────────────────────────── */
.hero-social { display:flex; flex-direction:row; gap:.6rem; }
.hero-social a {
  width:38px; height:38px;
  border-radius:50%;
  border:1px solid var(--clr-border);
  display:flex; align-items:center; justify-content:center;
  color:var(--clr-txt-muted);
  transition:all var(--dur-fast) var(--ease);
}
.hero-social a:hover {
  border-color:var(--clr-primary);
  color:var(--clr-primary);
  background:rgba(34,211,238,.08);
  transform:scale(1.1);
}
.hero-social a svg { width:17px; height:17px; }

/* ─── ABOUT PROFILE CARD ─────────────────────────────────── */
.about-profile-card {
  display:flex;
  align-items:center;
  gap:2rem;
  padding:2rem;
  margin-bottom:2rem;
}
.about-profile-pic {
  flex-shrink:0;
  width:120px; height:120px;
  border-radius:50%;
  overflow:hidden;
  border:2px solid rgba(34,211,238,.4);
  box-shadow:0 0 0 8px rgba(34,211,238,.07);
}
.about-profile-pic img { width:100%; height:100%; object-fit:cover; }
.about-profile-name { font-size:1.6rem; font-weight:700; letter-spacing:-.03em; }
.about-profile-role { font-family:var(--f-mono); font-size:.8rem; color:var(--clr-primary); margin:.35rem 0 .75rem; }
.about-quote {
  font-style:italic;
  color:var(--clr-txt-muted);
  border-left:2px solid var(--clr-primary);
  padding-left:1rem;
  margin:0;
  font-size:.9rem;
  line-height:1.7;
}
@media (max-width:600px) {
  .about-profile-card { flex-direction:column; text-align:center; }
  .about-quote { text-align:left; }
}

/* ─── GITHUB STATS ───────────────────────────────────────── */
.github-stats-wrap {
  display:flex;
  gap:1rem;
  flex-wrap:wrap;
  margin-top:1.5rem;
}
.github-stat-img {
  border-radius:var(--r-md);
  max-width:100%;
  flex:1;
  min-width:260px;
}

/* ─── ABOUT SECTION SPACING ──────────────────────────────── */
.about-section { padding:.5rem 0; }
.about-section > h3 {
  position:relative;
  padding-left:1rem;
  margin-bottom:1rem;
}
.about-section > h3::before {
  content:'';
  position:absolute; left:0; top:.15em; bottom:.15em;
  width:3px;
  background:var(--grd-accent);
  border-radius:2px;
}
.about-section + .about-section { margin-top:2.5rem; }

/* Snapshot tags */
.snapshot-tags { display:flex; flex-wrap:wrap; gap:.6rem; margin-top:1rem; }
.snapshot-tag {
  font-size:.75rem;
  font-family:var(--f-mono);
  padding:.3rem .85rem;
  border-radius:var(--r-xl);
  background:rgba(34,211,238,.07);
  border:1px solid rgba(34,211,238,.18);
  color:var(--clr-primary-lt);
  transition:all var(--dur-fast) var(--ease);
}
.snapshot-tag:hover { background:rgba(34,211,238,.15); border-color:var(--clr-primary); transform:translateY(-2px); }

/* Cert action button */
.cert-action { margin-top:.75rem; }
.cert-btn { padding:.35rem .85rem !important; font-size:.75rem !important; display:inline-flex !important; gap:.4rem !important; }

/* ─── PROJECT FILTER BUTTONS ─────────────────────────────── */
.project-filters {
  display:flex;
  gap:.5rem;
  flex-wrap:wrap;
  margin-bottom:2rem;
}
.filter-btn {
  font-family:var(--f-mono);
  font-size:.78rem;
  font-weight:600;
  padding:.38rem 1rem;
  border-radius:var(--r-xl);
  border:1px solid var(--clr-border);
  background:transparent;
  color:var(--clr-txt-muted);
  cursor:pointer;
  transition:all var(--dur-fast) var(--ease);
}
.filter-btn:hover {
  border-color:var(--clr-primary);
  color:var(--clr-primary);
  background:rgba(34,211,238,.06);
}
.filter-btn.active {
  background:var(--clr-primary);
  border-color:var(--clr-primary);
  color:#0a0f1e;
}
.project-card.hidden { display:none; }

/* ─── CONTACT INFO GRID ──────────────────────────────────── */
.contact-info-grid {
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(200px,1fr));
  gap:1rem;
  margin-top:2rem;
}
.contact-info-card {
  display:flex;
  align-items:flex-start;
  gap:1rem;
  padding:1.25rem 1.5rem;
  min-width:0;
}
.contact-info-icon {
  flex-shrink:0;
  width:28px; height:28px;
  color:var(--clr-primary);
  display:flex; align-items:center; justify-content:center;
}
.contact-info-icon svg { width:22px; height:22px; stroke:var(--clr-primary); }
.contact-info-text { min-width:0; flex:1; }
.contact-info-label { font-size:.7rem; text-transform:uppercase; letter-spacing:1.5px; color:var(--clr-txt-muted); margin-bottom:.2rem; }
.contact-info-value {
  font-size:.88rem;
  font-weight:600;
  color:var(--clr-txt);
  word-break:break-word;
  overflow-wrap:anywhere;
  display:block;
}
.contact-info-value.contact-open,
.contact-open { color:var(--clr-green); }
a.contact-info-value { color:var(--clr-primary); transition:opacity var(--dur-fast) var(--ease); }
a.contact-info-value:hover { opacity:.8; }

/* ─── FORM TOAST NOTIFICATION ────────────────────────────── */
.form-toast {
  display:flex;
  align-items:center;
  gap:.75rem;
  padding:.9rem 1.5rem;
  background:rgba(16,185,129,.12);
  border:1px solid rgba(16,185,129,.3);
  border-radius:var(--r-md);
  color:var(--clr-green);
  font-size:.92rem;
  font-weight:500;
  margin-bottom:1.5rem;
  opacity:0;
  transform:translateY(-10px);
  transition:opacity .4s var(--ease), transform .4s var(--ease);
  pointer-events:none;
}
.form-toast[hidden] { display:none; }
.form-toast-visible { opacity:1 !important; transform:translateY(0) !important; pointer-events:auto; }
.form-toast-icon { font-size:1.1rem; }

/* ─── 404 PAGE ───────────────────────────────────────────── */
.not-found-section {
  min-height:80vh;
  display:flex;
  align-items:center;
  padding:4rem 0;
}
.not-found-section .container {
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:4rem;
  align-items:center;
}
.not-found-terminal { max-width:520px; overflow:hidden; }
.not-found-terminal .terminal-body {
  overflow-x:hidden;
  word-break:break-word;
  overflow-wrap:anywhere;
}
.not-found-content { text-align:center; }
.not-found-code {
  display:block;
  font-family:var(--f-mono);
  font-size:7rem;
  font-weight:700;
  line-height:1;
  background:var(--grd-accent);
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
  background-clip:text;
  margin-bottom:.5rem;
}
.not-found-title { font-size:2rem; font-weight:700; letter-spacing:-.03em; margin-bottom:.75rem; }
.not-found-msg { color:var(--clr-txt-muted); line-height:1.8; margin-bottom:2rem; }
.not-found-actions { display:flex; gap:.85rem; justify-content:center; flex-wrap:wrap; }
@media (max-width:768px) {
  .not-found-section .container { grid-template-columns:1fr; gap:2.5rem; }
  .not-found-code { font-size:5rem; }
}

/* ─── KEYBOARD FOCUS ACCESSIBILITY ──────────────────────── */
:focus-visible {
  outline:2px solid var(--clr-primary);
  outline-offset:3px;
  border-radius:4px;
}
button:focus-visible, a:focus-visible {
  outline:2px solid var(--clr-primary);
  outline-offset:3px;
}