/* ─────────────────────────────────────────
   ROOT TOKENS
   ───────────────────────────────────────── */
:root {
  /* palette */
  --bg:          #080b12;
  --bg-alt:      #0c1018;
  --surface:     rgba(255,255,255,.04);
  --surface-hov: rgba(255,255,255,.07);
  --border:      rgba(255,255,255,.08);
  --border-hov:  rgba(255,255,255,.16);

  --accent:      #7b78ff;
  --accent-glow: rgba(123,120,255,.35);
  --accent-2:    #4fc3f7;

  --text-1: #f0f2f8;
  --text-2: #8b91a8;
  --text-3: #555c72;

  /* spacing */
  --max-w: 1140px;
  --section-pad: 7rem 0;

  /* effects */
  --blur: blur(18px);
  --rad-sm: 10px;
  --rad-md: 16px;
  --rad-lg: 24px;

  /* timing */
  --ease: cubic-bezier(.25,.8,.25,1);
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text-1);
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

img, svg { display: block; }

/* ─────────────────────────────────────────
   UTILITIES
   ───────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: 1.5rem;
}

.section { padding: var(--section-pad); }

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

.section-tag {
  display: inline-block;
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: .75rem;
}

.section-title {
  font-family: 'DM Serif Display', Georgia, serif;
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 400;
  color: var(--text-1);
  margin-bottom: 2.5rem;
  letter-spacing: -.02em;
}

.glass {
  background: var(--surface);
  border: 1px solid var(--border);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
}

/* ─────────────────────────────────────────
   BUTTONS
   ───────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .75rem 1.6rem;
  border-radius: 50px;
  font-size: .875rem;
  font-weight: 600;
  letter-spacing: .02em;
  cursor: pointer;
  transition: all .3s var(--ease);
  border: none;
  outline: none;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 0 32px var(--accent-glow);
}
.btn-primary:hover {
  background: #9290ff;
  box-shadow: 0 0 48px rgba(123,120,255,.5);
  transform: translateY(-2px);
}

.btn-ghost {
  background: transparent;
  color: var(--text-2);
  border: 1px solid var(--border);
}
.btn-ghost:hover {
  border-color: var(--border-hov);
  color: var(--text-1);
  background: var(--surface-hov);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: var(--text-1);
  border: 1px solid var(--border);
}
.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-1px);
}

.btn-sm { padding: .45rem 1rem; font-size: .8rem; }

.btn-live {
  margin-top: 2rem;
  padding: .9rem 2rem;
  font-size: .95rem;
  box-shadow: 0 0 40px var(--accent-glow);
}

.live-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #4dff9f;
  box-shadow: 0 0 8px #4dff9f;
  flex-shrink: 0;
  animation: pulse-dot 1.8s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%,100% { opacity:1; transform:scale(1); }
  50%      { opacity:.5; transform:scale(.6); }
}

/* ─────────────────────────────────────────
   TAGS
   ───────────────────────────────────────── */
.tag {
  display: inline-block;
  font-size: .7rem;
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
  padding: .2rem .65rem;
  border-radius: 50px;
  background: rgba(123,120,255,.12);
  color: var(--accent);
  border: 1px solid rgba(123,120,255,.25);
}

/* ─────────────────────────────────────────
   NAV
   ───────────────────────────────────────── */
.nav-bar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  transition: background .4s, border-color .4s;
  border-bottom: 1px solid transparent;
}

.nav-bar.scrolled {
  background: rgba(8,11,18,.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-color: var(--border);
}

.nav-inner {
  display: flex;
  align-items: center;
  gap: 2rem;
  max-width: var(--max-w);
  margin-inline: auto;
  padding: 1.1rem 1.5rem;
}

.nav-brand {
  font-weight: 800;
  font-size: 1.1rem;
  letter-spacing: .1em;
  color: var(--accent);
  flex-shrink: 0;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 1.8rem;
  margin-inline: auto;
}

.nav-link {
  font-size: .85rem;
  font-weight: 500;
  color: var(--text-2);
  transition: color .2s;
  position: relative;
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0; right: 0;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transition: transform .2s var(--ease);
  transform-origin: left;
}
.nav-link:hover { color: var(--text-1); }
.nav-link:hover::after { transform: scaleX(1); }

/* ─────────────────────────────────────────
   HERO
   ───────────────────────────────────────── */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: 6rem;
}

.hero-noise {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 60% at 60% 40%, rgba(123,120,255,.12) 0%, transparent 70%),
    radial-gradient(ellipse 40% 40% at 20% 80%, rgba(79,195,247,.07) 0%, transparent 60%);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 2;
  max-width: 760px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--text-2);
  border: 1px solid var(--border);
  border-radius: 50px;
  padding: .35rem 1rem;
  margin-bottom: 1.75rem;
  background: var(--surface);
}
.hero-badge::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: #4dff9f;
  box-shadow: 0 0 6px #4dff9f;
}

.hero-title {
  font-family: 'DM Serif Display', Georgia, serif;
  font-size: clamp(2.8rem, 7vw, 5.2rem);
  line-height: 1.05;
  letter-spacing: -.03em;
  font-weight: 400;
  margin-bottom: 1.5rem;
}

.hero-title-muted {
  color: var(--text-3);
}

.hero-desc {
  font-size: 1.05rem;
  color: var(--text-2);
  max-width: 560px;
  line-height: 1.8;
  margin-bottom: 2.5rem;
}

.hero-cta-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.hero-scroll-hint {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .5rem;
  color: var(--text-3);
}

.scroll-line {
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, transparent, var(--text-3));
  animation: scroll-line 2s ease-in-out infinite;
}

@keyframes scroll-line {
  0%   { transform: scaleY(0); transform-origin: top; opacity: 0; }
  50%  { transform: scaleY(1); transform-origin: top; opacity: 1; }
  100% { transform: scaleY(0); transform-origin: bottom; opacity: 0; }
}

.scroll-label {
  font-size: .65rem;
  letter-spacing: .15em;
  text-transform: uppercase;
}

/* ─────────────────────────────────────────
   FEATURED CARD (VAULT BANK)
   ───────────────────────────────────────── */
.featured-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  border-radius: var(--rad-lg);
  padding: 3rem;
  transition: border-color .3s, box-shadow .3s;
  position: relative;
  overflow: hidden;
}

.featured-card::before {
  content: '';
  position: absolute;
  top: -50%; left: -20%;
  width: 60%; height: 80%;
  background: radial-gradient(ellipse, rgba(123,120,255,.08), transparent 70%);
  pointer-events: none;
}

.featured-card:hover {
  border-color: rgba(123,120,255,.3);
  box-shadow: 0 0 60px rgba(123,120,255,.1);
}

.featured-card-meta {
  display: flex;
  gap: .5rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}

.featured-card-title {
  font-family: 'DM Serif Display', Georgia, serif;
  font-size: 2rem;
  font-weight: 400;
  letter-spacing: -.02em;
  color: var(--text-1);
  margin-bottom: 1rem;
}

.featured-card-desc {
  color: var(--text-2);
  line-height: 1.8;
  margin-bottom: 1rem;
}

.featured-highlights {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: .5rem;
}

.featured-highlights li {
  display: flex;
  align-items: flex-start;
  gap: .6rem;
  color: var(--text-2);
  font-size: .9rem;
}

.featured-highlights li::before {
  content: '→';
  color: var(--accent);
  flex-shrink: 0;
  margin-top: .05rem;
}

/* ─── Mock Browser Visual ─── */
.featured-card-visual {
  display: flex;
  align-items: center;
  justify-content: center;
}

.mock-browser {
  width: 100%;
  max-width: 420px;
  border-radius: var(--rad-md);
  overflow: hidden;
  border: 1px solid var(--border-hov);
  background: rgba(12,16,24,.9);
  box-shadow: 0 24px 64px rgba(0,0,0,.5);
}

.mock-browser-bar {
  background: rgba(255,255,255,.05);
  padding: .6rem 1rem;
  display: flex;
  align-items: center;
  gap: .5rem;
  border-bottom: 1px solid var(--border);
}

.mock-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}
.mock-dot.red    { background: #ff5f56; }
.mock-dot.yellow { background: #febc2e; }
.mock-dot.green  { background: #28c840; }

.mock-url {
  flex: 1;
  text-align: center;
  font-size: .65rem;
  color: var(--text-3);
  background: rgba(255,255,255,.05);
  border-radius: 50px;
  padding: .2rem .75rem;
  letter-spacing: .04em;
}

.mock-screen { padding: 1rem; }

.mock-header-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: .75rem;
}

.mock-logo-block {
  width: 64px; height: 10px;
  border-radius: 4px;
  background: var(--accent);
  opacity: .8;
}

.mock-nav-items { display: flex; gap: .4rem; }

.mock-nav-item {
  width: 28px; height: 8px;
  border-radius: 4px;
  background: rgba(255,255,255,.12);
}

.mock-balance-card {
  background: linear-gradient(135deg, rgba(123,120,255,.25), rgba(79,195,247,.15));
  border: 1px solid rgba(123,120,255,.3);
  border-radius: 10px;
  padding: 1rem;
  margin-bottom: .75rem;
}

.mock-label  { width: 70px;  height: 7px;  border-radius: 4px; background: rgba(255,255,255,.2); margin-bottom: .4rem; }
.mock-amount { width: 120px; height: 18px; border-radius: 6px; background: rgba(255,255,255,.35); margin-bottom: .3rem; }
.mock-sublabel{ width: 50px; height: 6px;  border-radius: 4px; background: rgba(255,255,255,.12); }

.mock-tx-list { display: flex; flex-direction: column; gap: .4rem; }

.mock-tx-row {
  display: flex;
  align-items: center;
  gap: .5rem;
  padding: .35rem .4rem;
  border-radius: 6px;
  background: rgba(255,255,255,.03);
}

.mock-tx-icon {
  width: 24px; height: 24px;
  border-radius: 50%;
  background: rgba(255,255,255,.1);
  flex-shrink: 0;
}

.mock-tx-info { flex: 1; display: flex; flex-direction: column; gap: .25rem; }

.mock-tx-info > div:first-child { width: 80px; height: 7px; border-radius: 4px; background: rgba(255,255,255,.18); }
.mock-tx-info > div:last-child  { width: 50px; height: 6px; border-radius: 4px; background: rgba(255,255,255,.08); }

.mock-tx-amt { width: 44px; height: 10px; border-radius: 4px; }
.mock-tx-amt.green { background: rgba(77,255,159,.35); }
.mock-tx-amt.red   { background: rgba(255,100,100,.3); }

/* ─────────────────────────────────────────
   OTHER PROJECTS GRID
   ───────────────────────────────────────── */
.projects-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.project-card {
  border-radius: var(--rad-md);
  padding: 2rem;
  transition: border-color .3s, transform .3s, box-shadow .3s;
  cursor: default;
  display: flex;
  flex-direction: column;
}

.project-card:hover {
  border-color: var(--border-hov);
  transform: translateY(-4px);
  box-shadow: 0 24px 48px rgba(0,0,0,.3);
}

.project-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 1.25rem;
}

.project-icon {
  font-size: 1.75rem;
  line-height: 1;
}

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

.project-card-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-1);
  margin-bottom: .6rem;
  letter-spacing: -.01em;
}

.project-card-desc {
  font-size: .88rem;
  color: var(--text-2);
  line-height: 1.75;
  flex: 1;
}

.project-card-footer {
  margin-top: 1.25rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}

.project-stack {
  font-size: .75rem;
  color: var(--text-3);
  font-weight: 500;
  letter-spacing: .04em;
}

/* ─────────────────────────────────────────
   SKILLS GRID
   ───────────────────────────────────────── */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.skill-card {
  border-radius: var(--rad-md);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: .75rem;
  transition: border-color .3s, transform .3s, box-shadow .3s;
  cursor: default;
}

.skill-card:hover {
  border-color: rgba(123,120,255,.3);
  transform: translateY(-4px);
  box-shadow: 0 20px 40px rgba(0,0,0,.25);
}

.skill-icon {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
}

.skill-icon svg {
  width: 100%;
  height: 100%;
}

.skill-name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-1);
  letter-spacing: -.01em;
}

.skill-desc {
  font-size: .78rem;
  color: var(--text-3);
  font-weight: 400;
}

/* ─────────────────────────────────────────
   EDUCATION & ACCOLADES
   ───────────────────────────────────────── */
.edu-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.edu-card {
  border-radius: var(--rad-md);
  padding: 2rem;
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
  transition: border-color .3s, transform .3s;
}

.edu-card:hover {
  border-color: var(--border-hov);
  transform: translateY(-3px);
}

.edu-icon {
  font-size: 1.75rem;
  flex-shrink: 0;
  margin-top: .1rem;
}

.edu-body { flex: 1; }

.edu-meta {
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: .3rem;
}

.edu-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-1);
  margin-bottom: .2rem;
}

.edu-sub {
  font-size: .8rem;
  color: var(--text-3);
  margin-bottom: .6rem;
}

.edu-desc {
  font-size: .875rem;
  color: var(--text-2);
  line-height: 1.7;
}

/* ─────────────────────────────────────────
   FOOTER
   ───────────────────────────────────────── */
.footer {
  position: relative;
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  overflow: hidden;
}

.footer-glow {
  position: absolute;
  bottom: 0; left: 50%;
  transform: translateX(-50%);
  width: 600px; height: 300px;
  background: radial-gradient(ellipse at bottom, rgba(123,120,255,.08), transparent 70%);
  pointer-events: none;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 3rem;
  padding-top: 4rem;
  padding-bottom: 3rem;
  position: relative;
  z-index: 2;
}

.footer-brand {
  font-family: 'DM Serif Display', Georgia, serif;
  font-size: 1.8rem;
  letter-spacing: -.02em;
  margin-bottom: .5rem;
}

.footer-tagline {
  color: var(--text-2);
  font-size: .9rem;
  margin-bottom: 1.5rem;
}

.footer-right {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  justify-content: center;
}

.footer-contact-item {
  display: flex;
  align-items: center;
  gap: .75rem;
}

.contact-icon {
  font-size: 1rem;
  flex-shrink: 0;
  opacity: .6;
}

.contact-link {
  font-size: .9rem;
  color: var(--text-2);
  transition: color .2s;
}
.contact-link:hover { color: var(--accent); }

.contact-text {
  font-size: .9rem;
  color: var(--text-2);
}

.footer-bottom {
  border-top: 1px solid var(--border);
  text-align: center;
  padding: 1.25rem 1.5rem;
  font-size: .78rem;
  color: var(--text-3);
  letter-spacing: .04em;
  position: relative;
  z-index: 2;
}

/* ─────────────────────────────────────────
   FADE-IN ON SCROLL (JS sets .in-view)
   ───────────────────────────────────────── */
.fade-up {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .65s var(--ease), transform .65s var(--ease);
}

.fade-up.in-view {
  opacity: 1;
  transform: translateY(0);
}

/* stagger delays for children */
.stagger > *:nth-child(1) { transition-delay: .05s; }
.stagger > *:nth-child(2) { transition-delay: .15s; }
.stagger > *:nth-child(3) { transition-delay: .25s; }
.stagger > *:nth-child(4) { transition-delay: .35s; }
.stagger > *:nth-child(5) { transition-delay: .45s; }
.stagger > *:nth-child(6) { transition-delay: .55s; }

/* ─────────────────────────────────────────
   NAV SOCIAL ICONS
   ───────────────────────────────────────── */
.nav-social {
  display: flex;
  align-items: center;
  gap: .75rem;
  flex-shrink: 0;
}

.nav-social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  color: var(--text-2);
  border: 1px solid var(--border);
  background: var(--surface);
  transition: color .2s, border-color .2s, background .2s, transform .2s;
}

.nav-social-link svg {
  width: 16px;
  height: 16px;
}

.nav-social-link:hover {
  color: var(--accent);
  border-color: rgba(123,120,255,.4);
  background: rgba(123,120,255,.1);
  transform: translateY(-2px);
}

/* ─────────────────────────────────────────
   EMOJI SKILL ICON
   ───────────────────────────────────────── */
.skill-icon-emoji {
  font-size: 2rem;
  line-height: 1;
  width: auto;
  height: auto;
}

/* ─────────────────────────────────────────
   EXTRAS GRID (MS OFFICE, ETC.)
   ───────────────────────────────────────── */
.extras-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.extra-card {
  border-radius: var(--rad-md);
  padding: 1.5rem;
  display: flex;
  align-items: center;
  gap: 1.25rem;
  transition: border-color .3s, transform .3s, box-shadow .3s;
  cursor: default;
}

.extra-card:hover {
  border-color: var(--border-hov);
  transform: translateY(-3px);
  box-shadow: 0 16px 36px rgba(0,0,0,.25);
}

.extra-icon {
  width: 44px;
  height: 44px;
  flex-shrink: 0;
}

.extra-icon svg {
  width: 100%;
  height: 100%;
}

.extra-name {
  font-size: .95rem;
  font-weight: 700;
  color: var(--text-1);
  margin-bottom: .2rem;
}

.extra-desc {
  font-size: .775rem;
  color: var(--text-3);
}

/* ─────────────────────────────────────────
   FOOTER SOCIAL BUTTONS
   ───────────────────────────────────────── */
.footer-social-row {
  display: flex;
  gap: .75rem;
  margin-top: .5rem;
  flex-wrap: wrap;
}

.footer-social-btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .45rem 1rem;
  border-radius: 50px;
  font-size: .8rem;
  font-weight: 600;
  color: var(--text-2);
  border: 1px solid var(--border);
  background: var(--surface);
  transition: color .2s, border-color .2s, background .2s, transform .2s, box-shadow .2s;
}

.footer-social-btn svg {
  width: 15px;
  height: 15px;
  flex-shrink: 0;
}

.footer-social-btn:hover {
  color: var(--accent);
  border-color: rgba(123,120,255,.4);
  background: rgba(123,120,255,.08);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(123,120,255,.15);
}

/* ─────────────────────────────────────────
   SELECTION COLOUR
   ───────────────────────────────────────── */
::selection { background: rgba(123,120,255,.35); color: #fff; }

/* ─────────────────────────────────────────
   RESPONSIVE
   ───────────────────────────────────────── */
@media (max-width: 900px) {
  .featured-card     { grid-template-columns: 1fr; }
  .featured-card-visual { display: none; }
  .projects-grid     { grid-template-columns: 1fr; }
  .skills-grid       { grid-template-columns: 1fr 1fr; }
  .edu-grid          { grid-template-columns: 1fr; }
  .footer-inner      { grid-template-columns: 1fr; gap: 2rem; }
}

@media (max-width: 600px) {
  .nav-links { display: none; }
  .skills-grid { grid-template-columns: 1fr 1fr; }
  :root { --section-pad: 5rem 0; }
}

@media (max-width: 400px) {
  .skills-grid { grid-template-columns: 1fr; }
}