/* ═══════════════════════════════════════════════════════════════
   VIVESH TYAGI — SRE COMMAND CENTER  |  style.css
   ═══════════════════════════════════════════════════════════════ */

/* ─── CSS Variables ─── */
:root {
  --bg:        #0d1117;
  --bg2:       #161b22;
  --bg3:       #1c2333;
  --border:    rgba(0,229,255,.12);
  --cyan:      #00e5ff;
  --purple:    #8b5cf6;
  --rose:      #f43f5e;
  --green:     #10b981;
  --yellow:    #f59e0b;
  --text:      #cdd9e5;
  --text2:     #8b98a7;
  --sidebar-w: 220px;
  --radius:    10px;
  --font-mono: 'JetBrains Mono', monospace;
  --font-body: 'Inter', sans-serif;
  --transition: .3s ease;
}

/* ─── Reset & Base ─── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  overflow-x: hidden;
  cursor: none; /* custom cursor */
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
strong { color: #fff; }
button { cursor: none; font-family: inherit; }

/* ─── Scrollbar ─── */
::-webkit-scrollbar              { width: 6px; }
::-webkit-scrollbar-track        { background: var(--bg2); }
::-webkit-scrollbar-thumb        { background: var(--cyan); border-radius: 3px; }

/* ─── Color helpers ─── */
.c-cyan   { color: var(--cyan); }
.c-purple { color: var(--purple); }
.c-rose   { color: var(--rose); }

/* ═══════════════════════════════════════════════════════════════
   BOOT SCREEN
   ═══════════════════════════════════════════════════════════════ */
#boot-screen {
  position: fixed; inset: 0; z-index: 9999;
  background: #000;
  display: flex; align-items: center; justify-content: center;
  flex-direction: column;
  transition: opacity .6s ease, visibility .6s ease;
}
#boot-screen.hide { opacity: 0; visibility: hidden; pointer-events: none; }

.boot-inner { max-width: 560px; width: 90%; }
.boot-logo {
  font-family: var(--font-mono);
  font-size: 3rem;
  font-weight: 700;
  color: var(--cyan);
  margin-bottom: 1.5rem;
  letter-spacing: 4px;
  text-shadow: 0 0 20px var(--cyan);
  text-align: center;
}
.boot-lines { font-family: var(--font-mono); font-size: .78rem; line-height: 2; }
.bl { color: var(--text2); opacity: 0; transform: translateX(-8px); transition: opacity .4s, transform .4s; }
.bl.visible { opacity: 1; transform: none; }
.ok { color: var(--green); font-weight: 700; margin-right: .5rem; }
.bl.done { color: var(--cyan); font-weight: 500; }
.boot-bar-wrap {
  margin-top: 1.5rem;
  height: 3px;
  background: #1a2030;
  border-radius: 2px;
  overflow: hidden;
}
.boot-bar {
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--cyan), var(--purple));
  transition: width 1.8s cubic-bezier(.4,0,.2,1);
}

/* ═══════════════════════════════════════════════════════════════
   CUSTOM CURSOR
   ═══════════════════════════════════════════════════════════════ */
#cur-dot {
  position: fixed; z-index: 9998; pointer-events: none;
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--cyan);
  transform: translate(-50%,-50%);
  transition: transform .1s;
  box-shadow: 0 0 8px var(--cyan);
}
#cur-ring {
  position: fixed; z-index: 9997; pointer-events: none;
  width: 28px; height: 28px; border-radius: 50%;
  border: 1.5px solid rgba(0,229,255,.5);
  transform: translate(-50%,-50%);
  transition: transform .12s, width .2s, height .2s, border-color .2s;
}
body.cursor-hover #cur-ring {
  width: 44px; height: 44px;
  border-color: var(--cyan);
}

/* ═══════════════════════════════════════════════════════════════
   CIRCUIT CANVAS
   ═══════════════════════════════════════════════════════════════ */
#circuit-canvas {
  position: fixed; inset: 0; z-index: 0;
  pointer-events: none;
  opacity: .35;
}

/* ═══════════════════════════════════════════════════════════════
   SIDEBAR
   ═══════════════════════════════════════════════════════════════ */
#sidebar {
  position: fixed; left: 0; top: 0; bottom: 0;
  width: var(--sidebar-w);
  background: rgba(13,17,23,.92);
  backdrop-filter: blur(16px);
  border-right: 1px solid var(--border);
  z-index: 100;
  display: flex; flex-direction: column;
  padding: 1.5rem 0 1.5rem;
  transition: transform var(--transition);
}

.sb-logo {
  display: flex; align-items: center; gap: .75rem;
  padding: 0 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: .75rem;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 1.05rem;
  color: #fff;
}
.hex-badge {
  width: 40px; height: 40px;
  clip-path: polygon(50% 0%,100% 25%,100% 75%,50% 100%,0% 75%,0% 25%);
  background: linear-gradient(135deg, var(--cyan), var(--purple));
  display: flex; align-items: center; justify-content: center;
  font-size: .85rem; font-weight: 700; color: #000;
  flex-shrink: 0;
}

.sb-nav { flex: 1; display: flex; flex-direction: column; gap: .15rem; padding: 0 .75rem; }

.nav-item {
  display: flex; align-items: center; gap: .75rem;
  padding: .6rem .75rem;
  border-radius: 8px;
  font-size: .85rem;
  color: var(--text2);
  transition: background var(--transition), color var(--transition);
  position: relative;
}
.nav-item i { width: 18px; text-align: center; font-size: .9rem; }
.nav-item:hover { background: rgba(0,229,255,.07); color: var(--text); }
.nav-item.active {
  background: rgba(0,229,255,.1);
  color: var(--cyan);
}
.nav-item.active::before {
  content: '';
  position: absolute; left: 0; top: 20%; bottom: 20%;
  width: 3px; border-radius: 2px;
  background: var(--cyan);
  box-shadow: 0 0 8px var(--cyan);
}

.sb-social {
  display: flex; justify-content: center; gap: 1rem;
  padding: 1rem 1.25rem 0;
  border-top: 1px solid var(--border);
  margin-top: auto;
}
.sb-social a {
  color: var(--text2);
  font-size: 1.1rem;
  transition: color var(--transition), transform var(--transition);
}
.sb-social a:hover { color: var(--cyan); transform: translateY(-2px); }

#sb-toggle {
  display: none;
  position: absolute; top: 1rem; right: -44px;
  width: 38px; height: 38px;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: 1rem;
  align-items: center; justify-content: center;
}

/* ═══════════════════════════════════════════════════════════════
   MAIN CONTENT
   ═══════════════════════════════════════════════════════════════ */
#main {
  margin-left: var(--sidebar-w);
  position: relative; z-index: 1;
}

/* ─── Section Common ─── */
.section {
  min-height: 100vh;
  padding: 6rem 4rem 4rem;
  position: relative;
}
.panel {
  background: rgba(22,27,34,.8);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  backdrop-filter: blur(8px);
}
.sec-header { margin-bottom: 2.5rem; }
.sec-tag { font-family: var(--font-mono); font-size: .78rem; color: var(--cyan); letter-spacing: 2px; }
.sec-header h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); font-weight: 700; color: #fff; margin-top: .35rem; }
.sec-sub { color: var(--text2); margin-top: .5rem; font-size: .9rem; }
.sec-sub a { color: var(--cyan); }
.sec-sub a:hover { text-decoration: underline; }

/* ─── Reveal animation ─── */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in-view { opacity: 1; transform: none; }

/* ═══════════════════════════════════════════════════════════════
   HERO SECTION
   ═══════════════════════════════════════════════════════════════ */
.hero-section {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: 0;
  min-height: 100vh;
}
.hero-layout {
  display: flex; align-items: center; gap: 3rem;
  flex: 1; padding-top: 4rem;
}
.hero-left { flex: 1; }
.hero-right { flex: 0 0 380px; display: flex; justify-content: center; }

/* Terminal prompt */
.terminal-header {
  font-family: var(--font-mono);
  font-size: .8rem;
  color: var(--text2);
  margin-bottom: 1rem;
  display: flex; flex-wrap: wrap; gap: 0;
}
.th-user   { color: var(--green); }
.th-sep    { color: var(--text2); }
.th-path   { color: var(--cyan); }
.th-dollar { color: var(--text2); margin-left: .25rem; }
.th-cursor { color: var(--cyan); animation: blink 1s step-end infinite; }
@keyframes blink { 50% { opacity: 0; } }

/* Hero name */
.hero-name {
  font-size: clamp(2.5rem, 6vw, 4.2rem);
  font-weight: 700;
  color: #fff;
  line-height: 1.1;
  margin: .5rem 0 1rem;
  letter-spacing: -1px;
}

/* Role chips */
.hero-roles { display: flex; flex-wrap: wrap; gap: .5rem; margin-bottom: 1rem; }
.role-chip {
  font-size: .78rem;
  padding: .3rem .75rem;
  border: 1px solid var(--border);
  border-radius: 100px;
  background: rgba(0,229,255,.05);
  color: var(--text2);
}

.hero-tagline { color: var(--text2); line-height: 1.7; margin-bottom: 1.75rem; font-size: .95rem; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: .5rem;
  padding: .65rem 1.35rem;
  border-radius: 8px;
  font-size: .85rem;
  font-weight: 500;
  border: 1.5px solid transparent;
  transition: all var(--transition);
  cursor: none;
}
.btn-primary {
  background: var(--cyan);
  color: #000;
  border-color: var(--cyan);
}
.btn-primary:hover { background: transparent; color: var(--cyan); box-shadow: 0 0 18px rgba(0,229,255,.3); }
.btn-ghost {
  background: rgba(139,92,246,.15);
  color: var(--purple);
  border-color: rgba(139,92,246,.4);
}
.btn-ghost:hover { background: var(--purple); color: #fff; }
.btn-outline {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}
.btn-outline:hover { border-color: var(--cyan); color: var(--cyan); }

.hero-cta { display: flex; flex-wrap: wrap; gap: .75rem; margin-bottom: 2rem; }

/* Stats */
.hero-stats {
  display: flex; flex-wrap: wrap; gap: 1.5rem;
  border-top: 1px solid var(--border);
  padding-top: 1.5rem;
}
.h-stat {
  display: flex; flex-direction: column;
  font-family: var(--font-mono);
}
.h-stat > :first-child { font-size: 1.8rem; font-weight: 700; color: var(--cyan); line-height: 1; }
.h-stat > sup { font-size: .7rem; color: var(--cyan); }
.h-stat > span:last-child { font-size: .72rem; color: var(--text2); margin-top: .2rem; }

/* Orbit system */
.orbit-system {
  position: relative;
  width: 300px; height: 300px;
  display: flex; align-items: center; justify-content: center;
}
.o-ring {
  position: absolute;
  border: 1px solid rgba(0,229,255,.2);
  border-radius: 50%;
  animation: spin 20s linear infinite;
}
.r1 { width: 120px; height: 120px; animation-duration: 12s; }
.r2 { width: 200px; height: 200px; animation-duration: 18s; animation-direction: reverse; }
.r3 { width: 290px; height: 290px; animation-duration: 26s; }
@keyframes spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }

.o-center {
  width: 64px; height: 64px;
  clip-path: polygon(50% 0%,100% 25%,100% 75%,50% 100%,0% 75%,0% 25%);
  background: linear-gradient(135deg, var(--cyan), var(--purple));
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-mono); font-weight: 700; font-size: 1rem; color: #000;
  z-index: 2;
  box-shadow: 0 0 30px rgba(0,229,255,.4);
}

.o-icon {
  position: absolute;
  width: 36px; height: 36px;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: .9rem;
  color: var(--cyan);
  box-shadow: 0 0 10px rgba(0,229,255,.2);
}
/* Place icons around orbits using CSS */
.oi-1 { top: calc(50% - 110px/2 - 18px); left: 50%; transform: translateX(-50%); animation: counter-spin-1 12s linear infinite; }
.oi-2 { top: 50%; right: calc(50% - 110px/2 - 18px); transform: translateY(-50%); animation: counter-spin-2 18s linear infinite; }
.oi-3 { bottom: calc(50% - 110px/2 - 18px); left: 50%; transform: translateX(-50%); animation: counter-spin-3 26s linear infinite; }
.oi-4 { top: 50%; left: calc(50% - 200px/2 - 18px); transform: translateY(-50%); animation: counter-spin-4 18s linear infinite; }

@keyframes counter-spin-1 {
  from { transform: translateX(-50%) rotate(0deg) translateY(-60px) rotate(0deg); }
  to   { transform: translateX(-50%) rotate(360deg) translateY(-60px) rotate(-360deg); }
}
@keyframes counter-spin-2 {
  from { transform: translateY(-50%) rotate(90deg) translateX(100px) rotate(-90deg); }
  to   { transform: translateY(-50%) rotate(450deg) translateX(100px) rotate(-450deg); }
}
@keyframes counter-spin-3 {
  from { transform: translateX(-50%) rotate(180deg) translateY(-145px) rotate(-180deg); }
  to   { transform: translateX(-50%) rotate(540deg) translateY(-145px) rotate(-540deg); }
}
@keyframes counter-spin-4 {
  from { transform: translateY(-50%) rotate(-90deg) translateX(100px) rotate(90deg); }
  to   { transform: translateY(-50%) rotate(270deg) translateX(100px) rotate(-270deg); }
}

/* Scroll hint */
.scroll-hint {
  display: flex; flex-direction: column; align-items: center; gap: .5rem;
  padding-bottom: 2rem;
  font-size: .75rem; color: var(--text2);
  letter-spacing: 1px;
  text-transform: uppercase;
  font-family: var(--font-mono);
}
.s-arrow {
  width: 20px; height: 20px;
  border-right: 2px solid var(--cyan);
  border-bottom: 2px solid var(--cyan);
  transform: rotate(45deg);
  animation: bounce 1.8s ease-in-out infinite;
}
@keyframes bounce { 0%,100%{ transform: rotate(45deg) translateY(0); } 50%{ transform: rotate(45deg) translateY(6px); } }

/* ═══════════════════════════════════════════════════════════════
   ABOUT SECTION
   ═══════════════════════════════════════════════════════════════ */
.about-grid { display: grid; grid-template-columns: 280px 1fr; gap: 1.5rem; }

.about-card { padding: 1.5rem; }
.per-head { display: flex; gap: 1rem; align-items: flex-start; margin-bottom: 1.5rem; }
.per-avatar {
  width: 56px; height: 56px;
  background: linear-gradient(135deg, var(--cyan), var(--purple));
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-mono); font-weight: 700; color: #000;
  flex-shrink: 0;
}
.per-meta h3 { color: #fff; font-size: 1rem; margin-bottom: .25rem; }
.per-role { font-size: .78rem; color: var(--text2); display: block; margin-bottom: .5rem; }
.status-pill {
  display: inline-flex; align-items: center; gap: .4rem;
  background: rgba(16,185,129,.1);
  border: 1px solid rgba(16,185,129,.3);
  padding: .2rem .6rem;
  border-radius: 100px;
  font-size: .7rem;
  color: var(--green);
}
.s-dot {
  width: 6px; height: 6px;
  background: var(--green);
  border-radius: 50%;
  animation: pulse-dot 2s ease-in-out infinite;
}
@keyframes pulse-dot { 0%,100%{ opacity:1;box-shadow:0 0 0 0 rgba(16,185,129,.4); } 50%{ box-shadow:0 0 0 5px transparent; } }

.per-rows { display: flex; flex-direction: column; gap: .75rem; }
.per-row { display: flex; align-items: center; gap: .6rem; font-size: .82rem; color: var(--text2); }
.per-row i { width: 16px; color: var(--cyan); font-size: .8rem; }

.bio-card { padding: 1.5rem; }
.panel-label { font-family: var(--font-mono); font-size: .72rem; color: var(--cyan); letter-spacing: 2px; margin-bottom: .75rem; }
.bio-card p { color: var(--text2); line-height: 1.75; font-size: .9rem; margin-bottom: .75rem; }
.bio-highlights {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: .5rem; margin: 1rem 0 1.5rem;
}
.bh { display: flex; align-items: center; gap: .4rem; font-size: .82rem; color: var(--text2); }
.bh i { color: var(--green); font-size: .75rem; }

/* ═══════════════════════════════════════════════════════════════
   EXPERIENCE / TIMELINE
   ═══════════════════════════════════════════════════════════════ */
.timeline { display: flex; flex-direction: column; gap: 0; position: relative; }
.tl-item { display: flex; gap: 1rem; position: relative; }
.tl-marker { display: flex; flex-direction: column; align-items: center; padding-top: 1.5rem; }
.tl-node {
  width: 14px; height: 14px;
  border: 2px solid var(--cyan);
  border-radius: 50%;
  background: var(--bg);
  z-index: 1;
  flex-shrink: 0;
  transition: background var(--transition);
}
.tl-node.pulse {
  background: var(--cyan);
  box-shadow: 0 0 0 4px rgba(0,229,255,.2);
  animation: node-pulse 2s ease-in-out infinite;
}
@keyframes node-pulse { 0%,100%{ box-shadow:0 0 0 4px rgba(0,229,255,.2); } 50%{ box-shadow:0 0 0 8px rgba(0,229,255,.05); } }

/* vertical line between nodes */
.tl-item:not(:last-child) .tl-marker::after {
  content: '';
  flex: 1;
  width: 2px;
  background: linear-gradient(to bottom, var(--cyan), transparent);
  margin-top: 4px;
  min-height: 40px;
}

.tl-card { flex: 1; padding: 1.5rem; margin-bottom: 1.5rem; }
.tl-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: .75rem; }
.tl-period { font-family: var(--font-mono); font-size: .78rem; color: var(--text2); }
.tl-status { font-size: .72rem; padding: .2rem .6rem; border-radius: 100px; font-family: var(--font-mono); }
.tl-status.active  { background: rgba(16,185,129,.1); color: var(--green); border: 1px solid rgba(16,185,129,.3); }
.tl-status.done    { background: rgba(139,92,246,.1);  color: var(--purple); border: 1px solid rgba(139,92,246,.3); }
.tl-card h3 { color: #fff; font-size: 1.05rem; margin-bottom: .35rem; }
.tl-company { font-size: .82rem; color: var(--text2); margin-bottom: .75rem; display: flex; align-items: center; gap: .4rem; }
.tl-company i { color: var(--cyan); font-size: .75rem; }
.tl-desc { font-size: .88rem; color: var(--text2); line-height: 1.7; margin-bottom: 1rem; }
.tl-tags { display: flex; flex-wrap: wrap; gap: .4rem; }
.tl-tags span { font-size: .72rem; padding: .2rem .6rem; background: rgba(0,229,255,.07); border: 1px solid rgba(0,229,255,.15); border-radius: 100px; color: var(--cyan); }

/* ═══════════════════════════════════════════════════════════════
   SKILLS
   ═══════════════════════════════════════════════════════════════ */
.skill-tabs { display: flex; flex-wrap: wrap; gap: .5rem; margin-bottom: 2rem; }
.s-tab {
  padding: .55rem 1.1rem;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text2);
  font-size: .82rem;
  transition: all var(--transition);
}
.s-tab:hover { border-color: rgba(0,229,255,.3); color: var(--text); }
.s-tab.active { background: rgba(0,229,255,.1); border-color: var(--cyan); color: var(--cyan); }

.skill-panel { display: none; }
.skill-panel.active { display: block; animation: tab-in .3s ease; }
@keyframes tab-in { from{ opacity:0; transform:translateY(8px); } to{ opacity:1; transform:none; } }

.hex-grid {
  display: flex; flex-wrap: wrap; gap: 1.2rem;
}
.hex-item {
  width: 100px;
  height: 110px;
  clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
  background: var(--bg2);
  border: none;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: .35rem;
  font-size: .75rem;
  color: var(--text2);
  text-align: center;
  transition: all .3s;
  position: relative;
  cursor: default;
}
.hex-item::before {
  content: '';
  position: absolute; inset: -2px;
  clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
  background: linear-gradient(135deg, var(--cyan), var(--purple));
  z-index: -1;
  opacity: 0;
  transition: opacity .3s;
}
.hex-item:hover { color: var(--cyan); }
.hex-item:hover::before { opacity: 1; }
.hex-item i { font-size: 1.4rem; }

/* ═══════════════════════════════════════════════════════════════
   PROJECTS
   ═══════════════════════════════════════════════════════════════ */
.proj-filters { display: flex; flex-wrap: wrap; gap: .5rem; margin-bottom: 2rem; }
.pf {
  padding: .45rem 1rem;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 100px;
  color: var(--text2);
  font-size: .8rem;
  transition: all var(--transition);
}
.pf:hover  { border-color: rgba(0,229,255,.3); color: var(--text); }
.pf.active { background: rgba(0,229,255,.1); border-color: var(--cyan); color: var(--cyan); }

.proj-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.25rem;
}

.proj-card {
  background: rgba(22,27,34,.9);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  position: relative;
  overflow: hidden;
  transition: border-color var(--transition), transform .1s;
  transform-style: preserve-3d;
}
.proj-card:hover { border-color: rgba(0,229,255,.3); }
.proj-card.hide { display: none; }

.pc-glow {
  position: absolute; top: -30px; right: -30px;
  width: 120px; height: 120px;
  background: radial-gradient(circle, rgba(0,229,255,.12), transparent 70%);
  pointer-events: none;
}

.pc-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1rem; }
.pc-icon { width: 42px; height: 42px; background: rgba(0,229,255,.07); border: 1px solid rgba(0,229,255,.15); border-radius: 8px; display: flex; align-items: center; justify-content: center; font-size: 1.2rem; color: var(--cyan); }
.pc-badge { font-size: .68rem; padding: .2rem .6rem; border-radius: 100px; font-family: var(--font-mono); font-weight: 700; text-transform: uppercase; }
.pc-badge.active   { background: rgba(16,185,129,.1); color: var(--green); border: 1px solid rgba(16,185,129,.3); }
.pc-badge.wip      { background: rgba(245,158,11,.1); color: var(--yellow); border: 1px solid rgba(245,158,11,.3); }
.pc-badge.done     { background: rgba(139,92,246,.1); color: var(--purple); border: 1px solid rgba(139,92,246,.3); }

.proj-card h3 { color: #fff; font-size: .95rem; margin-bottom: .5rem; }
.proj-card p  { color: var(--text2); font-size: .83rem; line-height: 1.65; margin-bottom: 1rem; }
.pc-tech { display: flex; flex-wrap: wrap; gap: .35rem; margin-bottom: 1rem; }
.pc-tech span { font-size: .7rem; padding: .2rem .55rem; background: rgba(0,229,255,.06); border: 1px solid rgba(0,229,255,.12); border-radius: 100px; color: var(--cyan); }
.pc-link { display: inline-flex; align-items: center; gap: .35rem; font-size: .8rem; color: var(--text2); border: 1px solid var(--border); padding: .35rem .75rem; border-radius: 6px; transition: all var(--transition); }
.pc-link:hover { color: var(--cyan); border-color: rgba(0,229,255,.3); }

/* ═══════════════════════════════════════════════════════════════
   CERTIFICATIONS
   ═══════════════════════════════════════════════════════════════ */
.certs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
  gap: 1.25rem;
}
.cert-card {
  background: rgba(22,27,34,.8);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  text-align: center;
  transition: border-color var(--transition), transform var(--transition);
  display: flex; flex-direction: column; align-items: center; gap: .75rem;
}
.cert-card:hover { border-color: rgba(139,92,246,.4); transform: translateY(-3px); }
.cert-card p { font-size: .75rem; color: var(--text2); line-height: 1.5; }

/* ═══════════════════════════════════════════════════════════════
   IDEAS
   ═══════════════════════════════════════════════════════════════ */
.ideas-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.25rem;
}
.idea-card { padding: 1.5rem; transition: border-color var(--transition), transform var(--transition); }
.idea-card:hover { border-color: rgba(0,229,255,.3); transform: translateY(-4px); }
.idea-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1rem; }
.idea-tag {
  font-size: .7rem; font-weight: 600;
  padding: .2rem .6rem; border-radius: 100px;
  text-transform: uppercase; letter-spacing: .5px;
}
.idea-tag.devops   { background: rgba(0,229,255,.1);  color: var(--cyan);   border: 1px solid rgba(0,229,255,.25); }
.idea-tag.sre      { background: rgba(244,63,94,.1);  color: var(--rose);   border: 1px solid rgba(244,63,94,.25); }
.idea-tag.ai       { background: rgba(245,158,11,.1); color: var(--yellow); border: 1px solid rgba(245,158,11,.25); }
.idea-tag.cloud    { background: rgba(139,92,246,.1); color: var(--purple); border: 1px solid rgba(139,92,246,.25); }
.idea-tag.oss      { background: rgba(16,185,129,.1); color: var(--green);  border: 1px solid rgba(16,185,129,.25); }
.idea-tag.learning { background: rgba(0,229,255,.08); color: var(--cyan);   border: 1px solid rgba(0,229,255,.2); }

.idea-status {
  font-size: .68rem; padding: .2rem .55rem; border-radius: 100px;
  font-family: var(--font-mono);
}
.idea-status.in-progress { background: rgba(16,185,129,.1); color: var(--green); }
.idea-status.planning    { background: rgba(245,158,11,.1); color: var(--yellow); }
.idea-status.idea        { background: rgba(139,92,246,.1); color: var(--purple); }

.idea-card h3 { color: #fff; font-size: .95rem; margin-bottom: .5rem; }
.idea-card p  { color: var(--text2); font-size: .83rem; line-height: 1.65; margin-bottom: 1rem; }
.idea-date { font-size: .75rem; color: var(--text2); display: flex; align-items: center; gap: .35rem; }
.idea-date i { color: var(--cyan); font-size: .7rem; }

/* ═══════════════════════════════════════════════════════════════
   CONTACT
   ═══════════════════════════════════════════════════════════════ */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1.25rem;
  margin-bottom: 2.5rem;
}
.contact-card {
  padding: 1.75rem;
  display: flex; flex-direction: column; align-items: flex-start; gap: .75rem;
  transition: transform var(--transition), border-color var(--transition);
  text-decoration: none;
}
.contact-card:hover { transform: translateY(-5px); }
.contact-card.gh:hover  { border-color: rgba(255,255,255,.3); }
.contact-card.li:hover  { border-color: rgba(0,119,181,.6); }
.contact-card.em:hover  { border-color: rgba(244,63,94,.4); }
.contact-card.cr:hover  { border-color: rgba(139,92,246,.4); }

.cc-icon {
  width: 48px; height: 48px;
  border-radius: 10px;
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem;
}
.gh .cc-icon  { color: #fff; }
.li .cc-icon  { color: #0077b5; }
.em .cc-icon  { color: var(--rose); }
.cr .cc-icon  { color: var(--purple); }

.contact-card h3 { color: #fff; font-size: 1rem; }
.contact-card p  { color: var(--text2); font-size: .82rem; line-height: 1.6; }
.cc-handle { font-size: .8rem; color: var(--cyan); display: flex; align-items: center; gap: .35rem; }

.gh-stats { padding: 2rem; }
.gh-stats .panel-label { margin-bottom: 1.25rem; }
.gh-imgs { display: flex; flex-wrap: wrap; gap: 1rem; }
.gh-imgs img { border-radius: 8px; max-width: 100%; }

/* ═══════════════════════════════════════════════════════════════
   FOOTER
   ═══════════════════════════════════════════════════════════════ */
footer { border-top: 1px solid var(--border); }
.footer-inner {
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap;
  gap: .75rem;
  padding: 1.5rem 4rem;
  font-size: .82rem;
  color: var(--text2);
}
.foot-copy { color: var(--text2); }
.foot-social { display: flex; gap: 1rem; }
.foot-social a { color: var(--text2); font-size: 1rem; transition: color var(--transition); }
.foot-social a:hover { color: var(--cyan); }

/* ─── Back to top ─── */
#back-top {
  position: fixed; bottom: 1.5rem; right: 1.5rem; z-index: 200;
  width: 40px; height: 40px;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--cyan);
  font-size: .9rem;
  display: flex; align-items: center; justify-content: center;
  opacity: 0; pointer-events: none;
  transition: opacity var(--transition), transform var(--transition);
}
#back-top.show { opacity: 1; pointer-events: auto; }
#back-top:hover { transform: translateY(-3px); box-shadow: 0 0 12px rgba(0,229,255,.25); }

/* ═══════════════════════════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════════════════════════ */
@media (max-width: 1100px) {
  .hero-right { flex: 0 0 300px; }
  .orbit-system { width: 250px; height: 250px; }
  .r3 { width: 238px; height: 238px; }
  .r2 { width: 168px; height: 168px; }
  .r1 { width: 98px; height: 98px; }
}

@media (max-width: 960px) {
  .about-grid { grid-template-columns: 1fr; }
  .hero-layout { flex-direction: column; gap: 2rem; padding-top: 5rem; }
  .hero-right { display: none; }
  .hero-left { text-align: center; }
  .hero-roles, .hero-cta, .hero-stats { justify-content: center; }
}

@media (max-width: 768px) {
  :root { --sidebar-w: 0px; }

  #sidebar {
    transform: translateX(-100%);
    width: 220px;
  }
  #sidebar.open {
    transform: translateX(0);
    box-shadow: 4px 0 30px rgba(0,0,0,.4);
  }
  #sb-toggle { display: flex; }

  #main { margin-left: 0; }

  .section { padding: 5rem 1.5rem 3rem; }
  .footer-inner { padding: 1.5rem; }
  .bio-highlights { grid-template-columns: 1fr; }
  .tl-card { padding: 1rem; }
}

@media (max-width: 480px) {
  .section { padding: 4rem 1rem 2.5rem; }
  .hero-name { font-size: 2.2rem; }
  .contact-grid { grid-template-columns: 1fr; }
  .certs-grid { grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); }
}

/* ─── Ensure mobile cursor fallback ─── */
@media (hover: none) {
  body { cursor: auto; }
  button { cursor: pointer; }
  #cur-dot, #cur-ring { display: none; }
}