/* ================================================================
   Portfolio — styles.css  Terminal / Hacker OS Edition
   Dark: obsidian + electric green/cyan
   Light: editorial paper + deep ink
================================================================ */

/* ── RESET ───────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
img, svg, canvas { display: block; max-width: 100%; }
a { text-decoration: none; color: inherit; }
button { font-family: inherit; cursor: pointer; }

/* ── TOKENS — DARK ───────────────────────────────────────────── */
:root {
  --bg:        #080c10;
  --bg1:       #0d1117;
  --bg2:       #111820;
  --bg3:       #161f2c;
  --surface:   #1a2333;
  --border:    rgba(0,255,180,0.10);
  --border2:   rgba(0,255,180,0.22);

  --green:     #00ffb3;
  --green-dim: rgba(0,255,179,0.55);
  --cyan:      #00d4ff;
  --cyan-dim:  rgba(0,212,255,0.55);
  --purple:    #b066ff;
  --amber:     #ffb347;
  --red:       #ff4757;

  --text:      #e2eaf4;
  --text-sub:  #8899aa;
  --text-dim:  #445566;

  --glow-g:    0 0 18px rgba(0,255,179,0.35);
  --glow-c:    0 0 18px rgba(0,212,255,0.35);

  --font:      'Space Grotesk', system-ui, sans-serif;
  --mono:      'JetBrains Mono', 'Fira Code', monospace;

  --nav-h:     64px;
  --max-w:     1160px;
  --pad:       clamp(16px, 4vw, 36px);

  --ease:      cubic-bezier(0.4, 0, 0.2, 1);
  --spring:    cubic-bezier(0.34, 1.56, 0.64, 1);
  --t:         0.22s;
  --tm:        0.36s;

  --r:         10px;
  --r2:        16px;
}

/* ── TOKENS — LIGHT ──────────────────────────────────────────── */
[data-theme="light"] {
  --bg:        #f8f9fb;
  --bg1:       #ffffff;
  --bg2:       #f0f2f5;
  --bg3:       #e8ebf0;
  --surface:   #ffffff;
  --border:    rgba(10,20,60,0.10);
  --border2:   rgba(10,20,60,0.22);

  --green:     #0a7a4e;
  --green-dim: rgba(10,122,78,0.45);
  --cyan:      #0066cc;
  --cyan-dim:  rgba(0,102,204,0.45);
  --purple:    #7c3aed;
  --amber:     #d97706;
  --red:       #dc2626;

  --text:      #0d1117;
  --text-sub:  #445566;
  --text-dim:  #99aabb;

  --glow-g:    0 2px 12px rgba(10,122,78,0.18);
  --glow-c:    0 2px 12px rgba(0,102,204,0.18);
}

/* ── GLOBAL THEME TRANSITION ─────────────────────────────────── */
body * {
  transition:
    background-color var(--tm) var(--ease),
    border-color     var(--tm) var(--ease),
    color            var(--tm) var(--ease),
    box-shadow       var(--tm) var(--ease);
}
canvas, .skfill, .ring-progress,
.typed-cursor, .avail-dot, .ripple-circle { transition: none !important; }

/* ── BASE ────────────────────────────────────────────────────── */
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Aurora canvas — fixed fullscreen behind everything */
#auroraCanvas {
  position: fixed; inset: 0;
  width: 100%; height: 100%;
  z-index: 0;
  pointer-events: none;
}

::selection { background: var(--green); color: #000; }
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--green-dim); border-radius: 4px; }

/* ── CUSTOM CURSOR ───────────────────────────────────────────── */
.cursor {
  position: fixed; top: 0; left: 0;
  width: 10px; height: 10px;
  background: var(--green);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%,-50%);
  box-shadow: var(--glow-g);
  transition: transform 0.08s var(--ease), background 0.2s, width 0.2s, height 0.2s;
}
body:has(a:hover) .cursor,
body:has(button:hover) .cursor { width: 18px; height: 18px; background: var(--cyan); box-shadow: var(--glow-c); }
@media (pointer: coarse) { .cursor { display: none; } }

/* ── TYPOGRAPHY ──────────────────────────────────────────────── */
h1, h2, h3, h4 { line-height: 1.12; letter-spacing: -0.025em; font-weight: 700; }
.mono { font-family: var(--mono); }

.hl {
  background: linear-gradient(90deg, var(--green) 0%, var(--cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── LAYOUT ──────────────────────────────────────────────────── */
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 var(--pad); }
.section { padding: 110px 0; position: relative; }

/* Section label */
.sec-label {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--green);
  letter-spacing: 0.06em;
  margin-bottom: 52px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.sec-num  { color: var(--green); }
.sec-slash{ color: var(--text-dim); margin: 0 2px; }

/* Scroll-reveal base */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ── BUTTONS ─────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 11px 24px;
  border-radius: var(--r);
  font-size: 0.875rem;
  font-family: var(--mono);
  font-weight: 500;
  letter-spacing: 0.02em;
  cursor: pointer; border: none;
  position: relative; overflow: hidden;
  white-space: nowrap;
  transition: transform var(--t) var(--spring), box-shadow var(--t) var(--ease),
              background var(--t) var(--ease), color var(--t) var(--ease);
}
.btn:hover  { transform: translateY(-2px); }
.btn:active { transform: scale(0.96); }

.btn-primary {
  background: var(--green);
  color: #000;
  font-weight: 700;
  box-shadow: var(--glow-g);
}
.btn-primary:hover { box-shadow: 0 0 28px rgba(0,255,179,0.55); }
[data-theme="light"] .btn-primary { background: var(--green); color: #fff; }

.btn-outline {
  background: transparent;
  color: var(--green);
  border: 1px solid var(--border2);
}
.btn-outline:hover { background: rgba(0,255,179,0.07); border-color: var(--green); }

.btn-ghost {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-ghost:hover { border-color: var(--border2); background: var(--bg3); }

.btn-sm  { padding: 7px 14px; font-size: 0.78rem; }
.btn-full { width: 100%; justify-content: center; }

/* Ripple */
.ripple { overflow: hidden; }
.ripple-circle {
  position: absolute; border-radius: 50%;
  background: rgba(255,255,255,0.18);
  transform: scale(0);
  animation: rippleAnim 0.5s var(--ease);
  pointer-events: none;
}
@keyframes rippleAnim { to { transform: scale(4); opacity: 0; } }

/* btn-loader toggle */
.btn-loader { display: none; }
#submitBtn.loading .btn-label  { display: none; }
#submitBtn.loading .btn-loader { display: inline-flex; align-items: center; gap: 8px; }

/* ── NAVBAR ──────────────────────────────────────────────────── */
.navbar {
  position: fixed; top: 0; left: 0; right: 0;
  height: var(--nav-h); z-index: 1000;
  transition: background var(--tm) var(--ease), box-shadow var(--tm) var(--ease);
}
.navbar.scrolled {
  background: rgba(8,12,16,0.82);
  backdrop-filter: blur(20px) saturate(1.6);
  box-shadow: 0 1px 0 var(--border);
}
[data-theme="light"] .navbar.scrolled {
  background: rgba(248,249,251,0.88);
}
.nav-inner {
  max-width: var(--max-w); margin: 0 auto;
  padding: 0 var(--pad); height: 100%;
  display: flex; align-items: center; justify-content: space-between;
}

.nav-logo {
  font-family: var(--mono); font-size: 1.05rem; font-weight: 700;
  color: var(--text);
  display: flex; align-items: center; gap: 2px;
  transition: color var(--t) var(--ease);
}
.nav-logo:hover { color: var(--green); }
.logo-prompt { color: var(--green); }
.logo-name   { color: var(--text); }
.logo-caret  { color: var(--green); animation: caretBlink 1.1s step-end infinite; }
@keyframes caretBlink { 50% { opacity: 0; } }

.nav-links {
  list-style: none; display: flex; gap: 28px;
}
.nav-link {
  font-family: var(--mono); font-size: 0.82rem; font-weight: 500;
  color: var(--text-sub);
  display: flex; align-items: center; gap: 6px;
  transition: color var(--t) var(--ease);
}
.nav-link:hover, .nav-link.active { color: var(--green); }
.link-num { color: var(--green); font-size: 0.72rem; opacity: 0.7; }

.nav-right { display: flex; align-items: center; gap: 10px; }

/* Theme toggle */
.theme-toggle {
  width: 38px; height: 38px; border-radius: 50%;
  border: 1px solid var(--border2); background: var(--surface);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.88rem; color: var(--text-sub);
  position: relative; overflow: hidden;
  transition: border-color var(--t) var(--ease), color var(--t) var(--ease),
              box-shadow var(--t) var(--ease);
}
.theme-toggle:hover { border-color: var(--green); color: var(--green); box-shadow: var(--glow-g); }
[data-theme="dark"]  #iconSun  { display: none; }
[data-theme="light"] #iconMoon { display: none; }
[data-theme="light"] #iconSun  { display: block; color: var(--amber); }

/* Hamburger */
.hamburger {
  display: none; flex-direction: column; gap: 5px;
  background: none; border: none; padding: 4px;
}
.hamburger span {
  display: block; width: 22px; height: 1.5px;
  background: var(--text-sub); border-radius: 2px;
  transition: transform var(--t) var(--ease), opacity var(--t) var(--ease);
}
.hamburger.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* ── HERO ────────────────────────────────────────────────────── */
.hero {
  min-height: 100vh;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  padding-top: var(--nav-h);
  position: relative; overflow: hidden;
  background: var(--bg);
}

/* Dedicated hero canvas — fills entire hero section */
.hero-canvas {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  pointer-events: none; z-index: 0;
  display: block;
}

/* Vignette so edges don't feel raw */
.hero::after {
  content: '';
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 50% 50%, transparent 30%, var(--bg) 100%);
  pointer-events: none; z-index: 1;
}

/* CRT scanline texture — gives the canvas a real monitor feel */
.hero::before {
  content: '';
  position: absolute; inset: 0;
  background: repeating-linear-gradient(
    to bottom,
    transparent 0px,
    transparent 3px,
    rgba(0,0,0,0.055) 3px,
    rgba(0,0,0,0.055) 4px
  );
  pointer-events: none; z-index: 3;
  mix-blend-mode: multiply;
}
[data-theme="light"] .hero::before {
  background: repeating-linear-gradient(
    to bottom,
    transparent 0px,
    transparent 3px,
    rgba(0,0,0,0.025) 3px,
    rgba(0,0,0,0.025) 4px
  );
}

/* hero-inner sits above canvas + vignette */
.hero-inner {
  position: relative; z-index: 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
  max-width: var(--max-w);
  width: 100%;
  padding: 0 var(--pad);
}

/* Terminal window */
.terminal-window {
  background: var(--bg1);
  border: 1px solid var(--border2);
  border-radius: var(--r2);
  overflow: hidden;
  box-shadow:
    0 0 0 1px rgba(0,255,179,0.08),
    0 0 80px rgba(0,255,179,0.07),
    0 0 160px rgba(0,212,255,0.05),
    0 24px 64px rgba(0,0,0,0.55);
  animation: fadeSlideLeft 0.8s 0.2s var(--ease) both;
  position: relative;
}
/* Green bloom halo behind terminal */
.terminal-window::before {
  content: '';
  position: absolute; inset: -40px;
  background: radial-gradient(ellipse at 50% 60%,
    rgba(0,255,179,0.06) 0%,
    transparent 70%);
  pointer-events: none; z-index: -1;
  border-radius: 50%;
}
[data-theme="light"] .terminal-window {
  box-shadow:
    0 0 0 1px rgba(0,100,60,0.10),
    0 8px 32px rgba(0,0,0,0.10);
}
[data-theme="light"] .terminal-window::before { display: none; }
@keyframes fadeSlideLeft {
  from { opacity: 0; transform: translateX(-32px); }
  to   { opacity: 1; transform: translateX(0); }
}
.terminal-bar {
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  padding: 12px 16px;
  display: flex; align-items: center; gap: 8px;
}
.t-btn {
  width: 12px; height: 12px; border-radius: 50%; flex-shrink: 0;
}
.t-close { background: #ff5f57; }
.t-min   { background: #ffbd2e; }
.t-max   { background: #28ca41; }
.t-title {
  font-family: var(--mono); font-size: 0.72rem;
  color: var(--text-dim); margin-left: 8px;
}
.terminal-body {
  padding: 20px 22px;
  font-family: var(--mono); font-size: 0.8rem;
  line-height: 1.8; color: var(--text-sub);
  min-height: 280px;
}
.t-line { display: flex; flex-wrap: wrap; gap: 4px; align-items: baseline; }
.t-prompt { color: var(--green); flex-shrink: 0; }
.t-cmd    { color: var(--cyan); }
.t-out    { color: var(--text-sub); padding-left: 16px; width: 100%; }
.t-out.green  { color: var(--green); }
.t-out.amber  { color: var(--amber); }
.t-out.purple { color: var(--purple); }
.t-cursor-line { display: flex; align-items: center; gap: 6px; }
.t-cursor-block {
  display: inline-block; width: 9px; height: 15px;
  background: var(--green); opacity: 1;
  animation: tCursorBlink 1s step-end infinite;
}
@keyframes tCursorBlink { 50% { opacity: 0; } }

/* Hero headline */
.hero-headline {
  animation: fadeSlideRight 0.8s 0.3s var(--ease) both;
  position: relative;
}
/* Cyan bloom behind the name text */
.hero-headline::before {
  content: '';
  position: absolute;
  top: 20%; left: -10%; right: -10%; bottom: -10%;
  background: radial-gradient(ellipse at 50% 40%,
    rgba(0,212,255,0.06) 0%,
    transparent 65%);
  pointer-events: none; z-index: -1;
}
[data-theme="light"] .hero-headline::before { display: none; }
@keyframes fadeSlideRight {
  from { opacity: 0; transform: translateX(32px); }
  to   { opacity: 1; transform: translateX(0); }
}
.hero-pre {
  font-family: var(--mono); font-size: 0.85rem;
  color: var(--green); letter-spacing: 0.06em;
  margin-bottom: 12px;
}
.hero-name {
  font-size: clamp(2.8rem, 6vw, 4.8rem);
  font-weight: 800; letter-spacing: 0.05em;
  text-transform: uppercase;
  line-height: 1.0;
  color: var(--text);
  margin-bottom: 18px;
}
.name-accent {
  background: linear-gradient(90deg, var(--green), var(--cyan));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-role-line {
  font-family: var(--mono); font-size: clamp(0.9rem, 2vw, 1.1rem);
  color: var(--text-sub); margin-bottom: 20px;
  display: flex; align-items: center; gap: 4px;
  min-height: 2em;
}
.role-bracket  { color: var(--cyan-dim); }
.typed-text    { color: var(--cyan); }
.typed-cursor  { color: var(--green); animation: caretBlink 0.9s step-end infinite; }

.hero-bio {
  color: var(--text-sub); font-size: 1rem; line-height: 1.75;
  max-width: 460px; margin-bottom: 32px;
}
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 36px; }
.hero-socials { display: flex; gap: 10px; }
.soc-link {
  width: 40px; height: 40px; border-radius: 50%;
  border: 1px solid var(--border2); background: var(--surface);
  display: inline-flex; align-items: center; justify-content: center;
  color: var(--text-sub); font-size: 0.9rem;
  position: relative; overflow: hidden;
  transition: all var(--t) var(--ease);
}
.soc-link:hover { color: var(--green); border-color: var(--green); box-shadow: var(--glow-g); transform: translateY(-3px); }

/* Scroll hint */
.scroll-hint {
  position: absolute; bottom: 28px; left: 50%;
  transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  color: var(--text-dim); font-family: var(--mono); font-size: 0.68rem;
  letter-spacing: 0.12em; text-transform: uppercase;
  animation: scrollFade 2.4s ease-in-out infinite;
  z-index: 3;
}
.scroll-line {
  width: 1px; height: 40px;
  background: linear-gradient(to bottom, transparent, var(--green-dim));
}
@keyframes scrollFade { 0%,100%{opacity:0.3} 50%{opacity:0.9} }

/* ── ABOUT ───────────────────────────────────────────────────── */
.about { background: var(--bg1); overflow: hidden; position: relative; }

.about-grid {
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: 64px;
  align-items: start;
}

/* Avatar */
.avatar-shell {
  position: relative;
  width: 220px; height: 220px;
  margin: 0 auto 28px;
}
.avatar-code-ring {
  position: absolute; inset: -18px;
  animation: spinRing 18s linear infinite;
}
@keyframes spinRing { to { transform: rotate(360deg); } }
.ring-svg { width: 100%; height: 100%; }
.ring-track    { fill: none; stroke: var(--border); stroke-width: 2; }
.ring-progress {
  fill: none;
  stroke: url(#ringGrad);
  stroke-width: 2;
  stroke-dasharray: 565;
  stroke-dashoffset: 141; /* 75% fill */
  stroke-linecap: round;
  transform: rotate(-90deg);
  transform-origin: center;
  filter: drop-shadow(0 0 6px var(--green));
}
.avatar-core {
  width: 100%; height: 100%;
  border-radius: 50%;
  background: var(--bg3);
  border: 2px solid var(--border2);
  display: flex; align-items: center; justify-content: center;
  font-size: 5rem; color: var(--green);
  box-shadow: 0 0 48px rgba(0,255,179,0.10);
  overflow: hidden;
}
.avatar-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  border-radius: 50%;
  display: block;
  transition: transform 0.5s var(--ease);
}
.avatar-core:hover .avatar-photo {
  transform: scale(1.06);
}
.avatar-tag {
  position: absolute;
  background: var(--surface);
  border: 1px solid var(--border2);
  border-radius: var(--r);
  padding: 5px 12px;
  font-family: var(--mono); font-size: 0.72rem;
  color: var(--green); white-space: nowrap;
  display: flex; align-items: center; gap: 6px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.3);
}
.tag-tl { bottom: -12px; left: -12px; }
.tag-br { top: -12px;    right: -12px; color: var(--cyan); }

/* Stats */
.stat-row {
  display: grid; grid-template-columns: repeat(3,1fr);
  gap: 10px; margin-top: 28px;
}
.stat-tile {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 14px 10px;
  text-align: center;
  transition: border-color var(--t) var(--ease), box-shadow var(--t) var(--ease);
}
.stat-tile:hover { border-color: var(--border2); box-shadow: var(--glow-g); }

/* Slot machine number display */
.stat-slot {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 1px;
  margin-bottom: 4px;
}
.stat-slot-track {
  height: 2.1rem;
  overflow: hidden;
  position: relative;
}
.stat-slot-num {
  font-family: var(--mono);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--green);
  line-height: 1;
  display: block;
  /* Start below, rolls up into view */
  transform: translateY(100%);
  opacity: 0;
}
/* Active state — snapped into position */
.stat-slot-num.slot-done {
  transform: translateY(0);
  opacity: 1;
}
/* Each intermediate digit during roll */
.stat-digit-wrap {
  height: 2.1rem;
  overflow: hidden;
  display: inline-block;
  vertical-align: middle;
}
.stat-digit-inner {
  display: flex;
  flex-direction: column;
  /* JS sets this translateY to scroll digits upward */
  will-change: transform;
}
.stat-digit-inner span {
  font-family: var(--mono);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--green);
  line-height: 2.1rem;
  height: 2.1rem;
  display: block;
  text-align: center;
}
.stat-suffix {
  font-family: var(--mono);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--green);
  line-height: 1;
  align-self: flex-start;
  margin-top: 2px;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.3s var(--ease), transform 0.3s var(--ease);
}
.stat-suffix.visible {
  opacity: 1;
  transform: translateY(0);
}

.stat-l {
  font-size: 0.68rem; color: var(--text-dim);
  text-transform: uppercase; letter-spacing: 0.08em;
  display: block;
}

/* Code block */
.code-block {
  background: var(--bg1);
  border: 1px solid var(--border2);
  border-radius: var(--r2);
  overflow: hidden;
  box-shadow: 0 8px 40px rgba(0,0,0,0.3);
}
.code-header {
  background: var(--bg2); border-bottom: 1px solid var(--border);
  padding: 10px 18px;
  display: flex; align-items: center; justify-content: space-between;
}
.code-lang { font-family: var(--mono); font-size: 0.75rem; color: var(--text-dim); }
.code-dots { display: flex; gap: 6px; }
.code-dots span { width: 11px; height: 11px; border-radius: 50%; background: var(--border2); }

.code-lines {
  padding: 20px 24px 4px;
  font-family: var(--mono); font-size: 0.82rem; line-height: 1.9;
}
.code-lines p { white-space: pre-wrap; }
.ind { padding-left: 24px; }
.c-kw   { color: var(--purple); }
.c-var  { color: var(--cyan); }
.c-op   { color: var(--text-dim); }
.c-punc { color: var(--text-sub); }
.c-key  { color: var(--cyan); }
.c-str  { color: var(--green); }
.c-bool { color: var(--amber); }
.c-comment { color: var(--text-dim); font-style: italic; }

.code-divider { height: 1px; background: var(--border); margin: 16px 0; }

.about-prose { padding: 0 24px 20px; font-size: 0.95rem; color: var(--text-sub); line-height: 1.8; }
.about-prose p { margin-bottom: 12px; }
.about-prose strong { color: var(--text); font-weight: 600; }
.code-block > .btn { margin: 0 24px 24px; }

/* ── SKILLS ──────────────────────────────────────────────────── */
.skills { background: var(--bg); overflow: hidden; position: relative; }

/* Feather top edge — blends from bg1 (About) into transparent */
.skills::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0;
  height: 120px;
  background: linear-gradient(to bottom, var(--bg1) 0%, transparent 100%);
  pointer-events: none; z-index: 3;
}

/* Feather bottom edge — blends from transparent into bg1 (Projects) */
.skills::after {
  content: '';
  position: absolute; bottom: 0; left: 0; right: 0;
  height: 120px;
  background: linear-gradient(to top, var(--bg1) 0%, transparent 100%);
  pointer-events: none; z-index: 3;
}

.skills-layout {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 32px;
  align-items: start;
}
.skills-sidebar {
  display: flex; flex-direction: column; gap: 6px;
  position: sticky; top: calc(var(--nav-h) + 24px);
}
.stab {
  display: flex; align-items: center; gap: 10px;
  padding: 11px 16px; border-radius: var(--r);
  background: transparent; border: 1px solid transparent;
  color: var(--text-dim); font-family: var(--mono); font-size: 0.82rem;
  font-weight: 500; text-align: left;
  position: relative; overflow: hidden;
  transition: all var(--t) var(--ease);
}
.stab:hover { color: var(--text); border-color: var(--border); background: var(--surface); }
.stab.active {
  color: var(--green); border-color: var(--border2);
  background: var(--bg2);
  box-shadow: inset 2px 0 0 var(--green);
}
.stab i { font-size: 0.9rem; width: 16px; text-align: center; }

/* Skill panels */
.spanel { display: none; }
.spanel.active { display: block; }

.skill-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 12px;
}
.skcard {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 16px 18px;
  display: flex; align-items: center; gap: 16px;
  transition: border-color var(--t) var(--ease), transform var(--t) var(--spring),
              box-shadow var(--t) var(--ease);
}
.skcard:hover {
  border-color: var(--border2);
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(0,255,179,0.08);
}
.skcard-icon {
  width: 44px; height: 44px; border-radius: var(--r);
  background: var(--bg3); border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem; color: var(--cyan); flex-shrink: 0;
  transition: color var(--t) var(--ease), border-color var(--t) var(--ease);
}
.skcard:hover .skcard-icon { color: var(--green); border-color: var(--green-dim); }
.skcard-info { flex: 1; min-width: 0; }
.skcard-name {
  display: block; font-size: 0.875rem; font-weight: 600;
  color: var(--text); margin-bottom: 8px;
}
.skbar {
  height: 3px; background: var(--bg3); border-radius: 99px;
  overflow: visible; position: relative;
  display: flex; align-items: center;
}
.skfill {
  height: 3px; width: 0; border-radius: 99px;
  background: linear-gradient(90deg, var(--green), var(--cyan));
  box-shadow: 0 0 8px var(--green-dim);
  transition: width 1.1s cubic-bezier(0.4,0,0.2,1);
  position: relative;
}
.skfill::after {
  content: '';
  position: absolute; right: -3px; top: -3px;
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 8px var(--green);
}
.sklevel {
  position: absolute; right: 0; top: -20px;
  font-family: var(--mono); font-size: 0.68rem; color: var(--green); opacity: 0;
  transition: opacity var(--t) var(--ease);
}
.skcard:hover .sklevel { opacity: 1; }

/* Section canvas (shared base) */
.sec-canvas {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  pointer-events: none; z-index: 0;
}

/* Skills canvas fades out at top and bottom edges via CSS mask */
#skillsCanvas {
  -webkit-mask-image: linear-gradient(to bottom, transparent 0%, black 18%, black 82%, transparent 100%);
  mask-image:         linear-gradient(to bottom, transparent 0%, black 18%, black 82%, transparent 100%);
}

/* ── PROJECTS ────────────────────────────────────────────────── */
.projects { background: var(--bg1); overflow: hidden; }

.proj-filters {
  display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 48px;
}
.pfilt {
  font-family: var(--mono); font-size: 0.78rem; font-weight: 500;
  padding: 7px 18px; border-radius: var(--r);
  background: transparent; border: 1px solid var(--border);
  color: var(--text-dim);
  position: relative; overflow: hidden;
  transition: all var(--t) var(--ease);
}
.pfilt:hover  { color: var(--text); border-color: var(--border2); }
.pfilt.active { color: var(--green); border-color: var(--green); background: rgba(0,255,179,0.06); box-shadow: var(--glow-g); }

.proj-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}

/* Project card — Notion/GitHub-style folder card */
.pcard {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r2);
  padding: 26px 24px 22px;
  display: flex; flex-direction: column; gap: 12px;
  position: relative; overflow: hidden;
  transition: border-color var(--tm) var(--ease),
              transform var(--tm) var(--spring),
              box-shadow var(--tm) var(--ease);
}
/* Accent top border on hover */
.pcard::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--green), var(--cyan));
  transform: scaleX(0); transform-origin: left;
  transition: transform var(--tm) var(--ease);
}
.pcard:hover::before { transform: scaleX(1); }
.pcard:hover {
  border-color: var(--border2);
  transform: translateY(-6px);
  box-shadow: 0 16px 48px rgba(0,255,179,0.10);
}
.pcard.hidden { display: none; }

.pcard-top {
  display: flex; align-items: center; justify-content: space-between;
}
.pcard-icons { display: flex; align-items: center; gap: 14px; }
.pcard-folder { font-size: 2rem; color: var(--cyan-dim); transition: color var(--t) var(--ease); }
.pcard:hover .pcard-folder { color: var(--cyan); }
.pcard-links { display: flex; gap: 10px; opacity: 0; transition: opacity var(--t) var(--ease); }
.pcard:hover .pcard-links { opacity: 1; }
.pcard-links a {
  width: 30px; height: 30px; border-radius: 6px;
  border: 1px solid var(--border2); background: var(--bg2);
  display: flex; align-items: center; justify-content: center;
  color: var(--text-sub); font-size: 0.8rem;
  position: relative; overflow: hidden;
  transition: all var(--t) var(--ease);
}
.pcard-links a:hover { color: var(--green); border-color: var(--green); }

.pcard-status {
  font-family: var(--mono); font-size: 0.68rem;
  padding: 3px 9px; border-radius: 99px;
}
.s-done { color: var(--green);  background: rgba(0,255,179,0.08);  border: 1px solid rgba(0,255,179,0.2); }
.s-wip  { color: var(--amber);  background: rgba(255,179,71,0.08);  border: 1px solid rgba(255,179,71,0.2); }
.s-plan { color: var(--text-dim);background: var(--bg3); border: 1px solid var(--border); }

.pcard-title {
  font-size: 1.1rem; font-weight: 700;
  color: var(--text); letter-spacing: -0.015em;
}
.pcard-desc {
  font-size: 0.875rem; color: var(--text-sub);
  line-height: 1.65; flex: 1;
}
.pcard-tags {
  display: flex; flex-wrap: wrap; gap: 7px;
  margin-top: 4px;
}
.pcard-tags span {
  font-family: var(--mono); font-size: 0.7rem; font-weight: 500;
  color: var(--cyan); padding: 3px 9px;
  background: rgba(0,212,255,0.07);
  border: 1px solid rgba(0,212,255,0.18);
  border-radius: 99px;
}

/* ── CONTACT ─────────────────────────────────────────────────── */
.contact { background: var(--bg); overflow: hidden; }

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 72px;
  align-items: start;
}
.contact-heading {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800; letter-spacing: -0.03em;
  line-height: 1.1; color: var(--text);
  margin-bottom: 18px;
}
.contact-sub {
  color: var(--text-sub); font-size: 0.97rem; line-height: 1.75;
  margin-bottom: 32px;
}
.contact-links { display: flex; flex-direction: column; gap: 14px; margin-bottom: 32px; }
.c-link {
  display: flex; align-items: center; gap: 14px;
  color: var(--text-sub); font-size: 0.9rem;
  transition: color var(--t) var(--ease);
}
.c-link i {
  width: 38px; height: 38px; border-radius: var(--r);
  background: var(--surface); border: 1px solid var(--border2);
  display: flex; align-items: center; justify-content: center;
  color: var(--cyan); font-size: 0.9rem; flex-shrink: 0;
  transition: all var(--t) var(--ease);
}
.c-link:hover { color: var(--green); }
.c-link:hover i { background: rgba(0,255,179,0.08); border-color: var(--green); color: var(--green); }

.avail-badge {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--mono); font-size: 0.78rem; font-weight: 600;
  color: var(--green);
  background: rgba(0,255,179,0.07);
  border: 1px solid rgba(0,255,179,0.22);
  border-radius: 99px; padding: 7px 16px;
}
.avail-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 8px var(--green);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse { 0%,100%{transform:scale(1);opacity:1} 50%{transform:scale(1.4);opacity:0.6} }

/* Contact Form */
.contact-form { display: flex; flex-direction: column; gap: 14px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.fg { display: flex; flex-direction: column; gap: 5px; }
.fg label {
  font-family: var(--mono); font-size: 0.72rem; font-weight: 600;
  color: var(--text-dim); letter-spacing: 0.08em; text-transform: uppercase;
}
.fg input, .fg textarea {
  background: var(--surface);
  border: 1px solid var(--border2);
  border-radius: var(--r);
  padding: 12px 14px;
  color: var(--text);
  font-family: var(--mono); font-size: 0.875rem;
  line-height: 1.5; resize: vertical;
  transition: border-color var(--t) var(--ease), box-shadow var(--t) var(--ease);
}
.fg input:focus, .fg textarea:focus {
  outline: none;
  border-color: var(--green);
  box-shadow: 0 0 0 3px rgba(0,255,179,0.12);
}
.fg input.error, .fg textarea.error { border-color: var(--red); }
.fg input::placeholder, .fg textarea::placeholder { color: var(--text-dim); }
.ferr { font-family: var(--mono); font-size: 0.72rem; color: var(--red); min-height: 14px; }

.form-success {
  display: none; align-items: center; gap: 10px;
  font-family: var(--mono); font-size: 0.82rem; font-weight: 500;
  color: var(--green);
  background: rgba(0,255,179,0.07);
  border: 1px solid rgba(0,255,179,0.22);
  border-radius: var(--r); padding: 12px 16px;
}
.form-success.show { display: flex; }

/* ── FOOTER ──────────────────────────────────────────────────── */
.footer {
  background: var(--bg1);
  border-top: 1px solid var(--border);
  padding: 32px 0;
  position: relative;
}
.footer-inner {
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 16px;
}
.footer-logo {
  font-family: var(--mono); font-size: 0.95rem; font-weight: 700;
  color: var(--text-sub);
}
.footer-logo .logo-prompt { color: var(--green); }
.footer-nav { display: flex; gap: 24px; flex-wrap: wrap; }
.footer-nav a {
  font-family: var(--mono); font-size: 0.8rem; color: var(--text-dim);
  transition: color var(--t) var(--ease);
}
.footer-nav a:hover { color: var(--green); }
.footer-copy {
  font-family: var(--mono); font-size: 0.78rem; color: var(--text-dim);
}
.c-comment { color: var(--text-dim); }

.back-top {
  position: fixed; bottom: 28px; right: 28px;
  width: 42px; height: 42px; border-radius: 50%;
  border: 1px solid var(--border2); background: var(--surface);
  color: var(--green); font-size: 0.85rem;
  display: flex; align-items: center; justify-content: center;
  opacity: 0; pointer-events: none;
  transition: all var(--t) var(--ease);
  z-index: 500; overflow: hidden;
}
.back-top:hover { background: var(--green); color: #000; box-shadow: var(--glow-g); transform: translateY(-3px); }

/* ── RESPONSIVE ──────────────────────────────────────────────── */
@media (max-width: 1024px) {
  .hero-inner { grid-template-columns: 1fr; gap: 40px; text-align: center; }
  .hero-headline { display: flex; flex-direction: column; align-items: center; }
  .hero-bio { text-align: left; }
  .about-grid { grid-template-columns: 1fr; gap: 48px; }
  .about-left { max-width: 360px; margin: 0 auto; }
}

@media (max-width: 768px) {
  :root { --nav-h: 60px; }
  .nav-links {
    display: none; position: fixed;
    top: var(--nav-h); left: 0; right: 0;
    background: rgba(8,12,16,0.96);
    backdrop-filter: blur(20px);
    flex-direction: column; align-items: center;
    padding: 24px 0 32px; gap: 4px;
    border-bottom: 1px solid var(--border);
  }
  [data-theme="light"] .nav-links { background: rgba(248,249,251,0.96); }
  .nav-links.open { display: flex; }
  .nav-link { padding: 12px 28px; font-size: 1rem; }
  .hamburger { display: flex; }
  .nav-right .btn { display: none; }

  .skills-layout { grid-template-columns: 1fr; }
  .skills-sidebar { flex-direction: row; position: static; overflow-x: auto; padding-bottom: 4px; }
  .stab { white-space: nowrap; }
  .stab span { display: none; }

  .contact-grid { grid-template-columns: 1fr; gap: 48px; }
  .form-row { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; align-items: flex-start; gap: 20px; }
}

@media (max-width: 480px) {
  .section { padding: 80px 0; }
  .proj-grid { grid-template-columns: 1fr; }
  .skill-grid { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; align-items: stretch; width: 100%; max-width: 280px; }
  .stat-row { grid-template-columns: repeat(3, 1fr); }
}

/* ── SVG GRADIENT def (injected via inline SVG) ──────────────── */
/* Ring gradient is defined inline in script.js via SVG defs */