/* ============================================================
   Yasar Mahmood — Portfolio
   style.css
   ============================================================ */

:root {
  --bg:       #04060a;
  --bg2:      #070b10;
  --surface:  #0b1018;
  --surface2: #0f1520;
  --border:   #162030;
  --border2:  #1e2e42;
  --accent:   #00d4ff;
  --accent2:  #00ff9d;
  --orange:   #ff6b35;
  --purple:   #a78bfa;
  --text:     #e2eaf4;
  --muted:    #4a6080;
  --muted2:   #2a3a50;
  --mono:     'JetBrains Mono', monospace;
  --sans:     'Space Grotesk', sans-serif;
}

/* ── RESET ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--mono);
  overflow-x: hidden;
  cursor: none;
}

/* ── SCAN LINE OVERLAY ── */
body::before {
  content: '';
  position: fixed; inset: 0; z-index: 9001; pointer-events: none;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0,0,0,0.03) 2px,
    rgba(0,0,0,0.03) 4px
  );
}

/* ── NOISE OVERLAY ── */
body::after {
  content: '';
  position: fixed; inset: 0; z-index: 9000; pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  opacity: 0.025;
}

/* ── CUSTOM CURSOR ── */
#cur {
  position: fixed; z-index: 9999; pointer-events: none;
  top: 0; left: 0; width: 4px; height: 18px;
  background: var(--accent);
  transform: translate(-50%, -50%);
  box-shadow: 0 0 10px var(--accent);
  animation: cursorBlink 1.1s step-end infinite;
}
#cur-r {
  position: fixed; z-index: 9998; pointer-events: none;
  top: 0; left: 0; width: 28px; height: 28px;
  border: 1px solid rgba(0,212,255,.3);
  transform: translate(-50%, -50%);
  transition: left .12s ease, top .12s ease;
}
@keyframes cursorBlink { 0%,100%{opacity:1} 50%{opacity:0} }

/* ── NAV ── */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 500;
  padding: 0 60px;
  height: 56px;
  display: flex; align-items: center; justify-content: space-between;
  border-bottom: 1px solid transparent;
  transition: background .4s, border-color .4s;
  font-size: 11px;
}
nav.scrolled {
  background: rgba(4,6,10,.92);
  backdrop-filter: blur(20px);
  border-color: var(--border);
}
.logo {
  font-weight: 700; letter-spacing: .05em; color: var(--text);
  text-decoration: none; display: flex; align-items: center; gap: 8px;
}
.logo-bracket { color: var(--muted); }
.logo-name    { color: var(--accent); }
.logo-at      { color: var(--muted); }

.nav-right { display: flex; align-items: center; gap: 24px; color: var(--muted); }
.nav-path { letter-spacing: .04em; }
.nav-path .seg { color: var(--accent2); }

.status-pill {
  display: flex; align-items: center; gap: 6px;
  padding: 4px 10px; border: 1px solid var(--border2);
  background: var(--surface); font-size: 10px; letter-spacing: .1em;
  text-transform: uppercase;
}
.pulse {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent2); box-shadow: 0 0 8px var(--accent2);
  animation: pulse 2s ease infinite;
}
@keyframes pulse { 0%,100%{opacity:1;transform:scale(1)} 50%{opacity:.4;transform:scale(.7)} }

/* ── HERO ── */
#hero {
  min-height: 100vh;
  padding: 100px 60px 80px;
  display: flex; align-items: flex-end;
  position: relative; overflow: hidden;
}
.grid-bg {
  position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(0,212,255,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,212,255,.04) 1px, transparent 1px);
  background-size: 48px 48px;
}
.glow-orb {
  position: absolute; pointer-events: none;
  width: 700px; height: 700px; border-radius: 50%;
  background: radial-gradient(circle, rgba(0,212,255,.06) 0%, transparent 65%);
  top: -200px; right: -200px;
}
.glow-orb2 {
  position: absolute; pointer-events: none;
  width: 500px; height: 500px; border-radius: 50%;
  background: radial-gradient(circle, rgba(0,255,157,.04) 0%, transparent 65%);
  bottom: -100px; left: 100px;
}
.hero-inner { max-width: 1100px; width: 100%; position: relative; z-index: 1; }

/* terminal prompt */
.prompt-line {
  display: flex; align-items: center; gap: 8px;
  font-size: 12px; margin-bottom: 32px;
  opacity: 0; animation: fadeUp .6s .1s ease forwards;
}
.prompt-user   { color: var(--accent2); }
.prompt-at     { color: var(--muted); }
.prompt-host   { color: var(--accent); }
.prompt-dir    { color: var(--purple); }
.prompt-sym    { color: var(--orange); margin: 0 4px; }
.prompt-cmd    { color: var(--text); }
.prompt-cursor {
  display: inline-block; width: 8px; height: 14px;
  background: var(--accent); vertical-align: middle; margin-left: 2px;
  animation: cursorBlink 1.1s step-end infinite;
}

.hero-name {
  font-family: var(--sans);
  font-size: clamp(60px, 9.5vw, 136px);
  font-weight: 700; line-height: .92; letter-spacing: -.03em;
  margin-bottom: 12px;
  opacity: 0; animation: fadeUp .9s .25s ease forwards;
}
.hero-name .dim { color: var(--muted2); }
.hero-name .hl  { color: var(--accent); }

.hero-role {
  font-size: 13px; letter-spacing: .12em; text-transform: uppercase;
  color: var(--muted); margin-bottom: 44px;
  opacity: 0; animation: fadeUp .7s .4s ease forwards;
}
.hero-role .tag {
  display: inline-block; padding: 3px 8px; margin-right: 6px;
  border: 1px solid var(--border2); background: var(--surface);
  color: var(--accent2); font-size: 10px;
}

.hero-bottom {
  display: grid; grid-template-columns: 1fr 1fr; gap: 48px;
  opacity: 0; animation: fadeUp .8s .55s ease forwards;
}
.hero-desc { font-size: 13px; line-height: 1.9; color: rgba(226,234,244,.55); }
.hero-desc .c-green { color: var(--accent2); }
.hero-desc .c-blue  { color: var(--accent); }
.hero-desc .c-str   { color: var(--orange); }
.hero-desc .c-com   { color: var(--muted); font-style: italic; }

.hero-btns { display: flex; flex-direction: column; gap: 0; border: 1px solid var(--border); }
.hbtn {
  display: flex; align-items: center; gap: 12px;
  padding: 14px 18px; font-size: 11px; letter-spacing: .08em;
  color: var(--muted); text-decoration: none;
  border-bottom: 1px solid var(--border);
  transition: background .2s, color .2s, border-color .2s;
}
.hbtn:last-child { border-bottom: none; }
.hbtn-num   { color: var(--muted2); min-width: 18px; font-size: 10px; }
.hbtn-label { flex: 1; }
.hbtn-arrow { font-size: 12px; color: var(--muted2); transition: transform .2s, color .2s; }
.hbtn:hover { background: var(--surface); color: var(--text); border-color: var(--border2); }
.hbtn:hover .hbtn-arrow { transform: translate(3px,-3px); color: var(--accent); }
.hbtn:hover .hbtn-num   { color: var(--accent); }

/* ── ABOUT ── */
#about {
  padding: 100px 60px;
  border-top: 1px solid var(--border);
}
.file-header {
  display: flex; align-items: center;
  border: 1px solid var(--border); background: var(--surface);
  margin-bottom: 56px; width: fit-content;
}
.fh-tab {
  padding: 10px 20px; font-size: 11px; letter-spacing: .06em;
  border-right: 1px solid var(--border); color: var(--muted);
}
.fh-tab.active {
  background: var(--surface2); color: var(--accent);
  border-bottom: 2px solid var(--accent);
}
.fh-dot { color: var(--muted2); padding: 10px 16px; font-size: 10px; }

.about-layout {
  display: grid; grid-template-columns: 5fr 4fr; gap: 80px; align-items: start;
}

/* code block bio */
.code-block {
  background: var(--surface); border: 1px solid var(--border);
  padding: 28px 32px; margin-bottom: 32px;
  font-size: 13px; line-height: 2; position: relative;
}
.code-block::before {
  content: attr(data-file);
  position: absolute; top: -1px; left: 20px;
  background: var(--accent); color: #000;
  font-size: 9px; font-weight: 700; letter-spacing: .1em;
  padding: 2px 8px; text-transform: uppercase;
}
.ln  { color: var(--muted2); margin-right: 20px; user-select: none; font-size: 11px; min-width: 20px; display: inline-block; text-align: right; }
.kw  { color: var(--purple); }
.cl  { color: var(--accent); }
.fn  { color: var(--accent2); }
.st  { color: var(--orange); }
.cm  { color: var(--muted); font-style: italic; }
.nm  { color: var(--text); }
.op  { color: var(--muted); }

/* stack panel */
.panel-header {
  display: flex; align-items: center; gap: 8px;
  font-size: 10px; letter-spacing: .14em; text-transform: uppercase;
  color: var(--muted); padding: 10px 16px;
  background: var(--surface); border: 1px solid var(--border);
  border-bottom: none;
}
.panel-header .ph-icon { color: var(--accent); }

.stack-table { border: 1px solid var(--border); width: 100%; margin-bottom: 28px; }
.st-row {
  display: grid; grid-template-columns: 1fr 100px 80px;
  border-bottom: 1px solid var(--border);
  font-size: 11px; transition: background .2s;
}
.st-row:last-child { border-bottom: none; }
.st-row:hover { background: var(--surface2); }
.st-cell {
  padding: 11px 16px; display: flex; align-items: center; gap: 8px;
  border-right: 1px solid var(--border);
}
.st-cell:last-child { border-right: none; }
.st-name { color: var(--text); letter-spacing: .04em; }
.st-icon { font-size: 14px; }

.badge {
  font-size: 9px; letter-spacing: .1em; text-transform: uppercase;
  padding: 2px 7px; border: 1px solid;
}
.badge-know  { color: var(--accent2); border-color: rgba(0,255,157,.3);   background: rgba(0,255,157,.05); }
.badge-learn { color: var(--orange);  border-color: rgba(255,107,53,.3);  background: rgba(255,107,53,.05); }
.badge-rec   { color: var(--purple);  border-color: rgba(167,139,250,.3); background: rgba(167,139,250,.05); }

.st-bar      { height: 3px; background: var(--border); border-radius: 2px; overflow: hidden; }
.st-bar-fill { height: 100%; border-radius: 2px; background: var(--accent2); }

/* stats */
.stats-row { display: flex; flex-direction: column; border: 1px solid var(--border); }
.stat-item {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 20px; border-bottom: 1px solid var(--border);
  transition: background .2s;
}
.stat-item:last-child { border-bottom: none; }
.stat-item:hover { background: var(--surface); }
.stat-label { font-size: 10px; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); }
.stat-val   { font-size: 22px; font-weight: 700; color: var(--accent); letter-spacing: -.02em; }

/* ── CONTACT ── */
#contact {
  padding: 100px 60px;
  border-top: 1px solid var(--border);
  position: relative; overflow: hidden;
}
.contact-glow {
  position: absolute; top: 0; left: 50%; transform: translateX(-50%);
  width: 800px; height: 400px;
  background: radial-gradient(ellipse, rgba(0,212,255,.06) 0%, transparent 65%);
  pointer-events: none;
}
.contact-inner {
  max-width: 900px; margin: 0 auto; text-align: center;
  position: relative; z-index: 1;
}

/* terminal window */
.terminal-window {
  background: var(--surface); border: 1px solid var(--border);
  margin-bottom: 60px;
}
.tw-bar {
  display: flex; align-items: center; gap: 8px;
  padding: 12px 16px; border-bottom: 1px solid var(--border);
  background: var(--bg2);
}
.tw-dot       { width: 10px; height: 10px; border-radius: 50%; }
.tw-dot.r     { background: #ff5f57; }
.tw-dot.y     { background: #febc2e; }
.tw-dot.g     { background: #28c840; }
.tw-title     { flex: 1; text-align: center; font-size: 10px; letter-spacing: .08em; color: var(--muted); }
.tw-body      { padding: 28px 32px; text-align: left; font-size: 13px; line-height: 2.1; }
.tw-line      { display: flex; }
.tw-ps        { color: var(--accent2); margin-right: 4px; }
.tw-out       { color: rgba(226,234,244,.6); }
.tw-hl        { color: var(--accent); }
.tw-grn       { color: var(--accent2); }

.contact-headline {
  font-family: var(--sans);
  font-size: clamp(48px, 7vw, 100px);
  font-weight: 700; letter-spacing: -.03em; line-height: .9;
  margin-bottom: 28px;
}
.contact-headline .dim { color: var(--muted2); }
.contact-headline .hl  { color: var(--accent); }

.contact-sub {
  font-size: 12px; letter-spacing: .06em; color: var(--muted);
  line-height: 1.9; margin-bottom: 48px;
}

.social-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px;
  background: var(--border); border: 1px solid var(--border);
  margin-bottom: 40px;
}
.soc-item {
  background: var(--bg); padding: 20px 16px;
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  text-decoration: none; transition: background .2s;
}
.soc-item:hover { background: var(--surface); }
.soc-icon  { font-size: 20px; }
.soc-label { font-size: 9px; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); }
.soc-val   { font-size: 11px; color: var(--text); letter-spacing: .04em; }

.email-link {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 14px; letter-spacing: .06em;
  color: var(--text); text-decoration: none;
  border: 1px solid var(--border); padding: 16px 28px;
  background: var(--surface);
  transition: border-color .2s, color .2s, background .2s;
}
.email-link:hover { border-color: var(--accent); color: var(--accent); background: var(--surface2); }
.email-arrow { transition: transform .2s; }
.email-link:hover .email-arrow { transform: translate(3px,-3px); }

/* ── FOOTER ── */
footer {
  border-top: 1px solid var(--border);
  padding: 18px 60px;
  display: flex; align-items: center; justify-content: space-between;
}
footer p { font-size: 10px; letter-spacing: .06em; color: var(--muted); }
.f-acc { color: var(--accent); }

/* ── ANIMATIONS ── */
@keyframes fadeUp {
  from { opacity:0; transform: translateY(24px); }
  to   { opacity:1; transform: translateY(0); }
}
.reveal { opacity:0; transform: translateY(20px); transition: opacity .65s ease, transform .65s ease; }
.reveal.in { opacity:1; transform: translateY(0); }
.d1 { transition-delay: .07s; }
.d2 { transition-delay: .14s; }
.d3 { transition-delay: .21s; }
.d4 { transition-delay: .28s; }

/* ── RESPONSIVE ── */
@media (max-width: 860px) {
  nav, #hero, #about, #contact, footer { padding-left: 24px; padding-right: 24px; }
  .hero-bottom, .about-layout { grid-template-columns: 1fr; }
  .social-grid { grid-template-columns: 1fr 1fr; }
  .nav-path { display: none; }
}