:root {
  --bg: #070a09;
  --bg-2: #0a0f0d;
  --panel: rgba(12, 19, 16, .88);
  --panel-2: rgba(7, 13, 12, .96);
  --green: #39ff14;
  --green-soft: #8cff77;
  --cyan: #00f5ff;
  --white: #eefdf7;
  --muted: #85a294;
  --line: rgba(85, 255, 178, .18);
  --danger: #ff4d6d;
  --shadow-green: 0 0 8px rgba(57,255,20,.54), 0 0 24px rgba(57,255,20,.15);
  --shadow-cyan: 0 0 8px rgba(0,245,255,.5), 0 0 24px rgba(0,245,255,.12);
  --mono: "Cascadia Code", "JetBrains Mono", "Fira Code", "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --sans: "Rajdhani", "Space Grotesk", "Segoe UI", system-ui, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 78% 8%, rgba(0,245,255,.065), transparent 28rem),
    radial-gradient(circle at 12% 34%, rgba(57,255,20,.055), transparent 32rem),
    linear-gradient(145deg, var(--bg), #060807 55%, #080c0b);
  color: var(--white);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.55;
  overflow-x: hidden;
}
body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  box-shadow: inset 0 0 120px rgba(0,0,0,.82);
  z-index: 50;
}
.scanlines {
  position: fixed; inset: 0; z-index: 40; pointer-events: none; opacity: .13;
  background: repeating-linear-gradient(to bottom, transparent 0 3px, rgba(120,255,184,.09) 4px);
}
.ambient-grid {
  position: fixed; inset: 0; z-index: -1; opacity: .12;
  background-image: linear-gradient(rgba(0,245,255,.12) 1px, transparent 1px), linear-gradient(90deg, rgba(57,255,20,.1) 1px, transparent 1px);
  background-size: 70px 70px;
  mask-image: linear-gradient(to bottom, black, transparent 80%);
}
a { color: var(--cyan); text-decoration: none; }
a:hover { color: var(--white); text-shadow: var(--shadow-cyan); }
button, input, textarea { font: inherit; }
button { cursor: pointer; }
code, pre, .eyebrow, .stage-code, .panel-kicker, .operator-chip, .button, .nav-links, .brand-copy small { font-family: var(--mono); }

.site-header {
  width: min(1480px, calc(100% - 36px)); margin: 18px auto 0; min-height: 68px;
  display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 32px;
  padding: 10px 14px 10px 10px; position: relative; z-index: 45;
  background: rgba(7,12,10,.72); border: 1px solid var(--line); backdrop-filter: blur(18px);
  box-shadow: 0 18px 60px rgba(0,0,0,.35), inset 0 1px rgba(255,255,255,.03);
  clip-path: polygon(0 0, calc(100% - 15px) 0, 100% 15px, 100% 100%, 15px 100%, 0 calc(100% - 15px));
}
.brand { color: var(--white); display: flex; align-items: center; gap: 13px; }
.brand-logo { width: 50px; height: 50px; object-fit: cover; border-radius: 11px; box-shadow: 0 0 16px rgba(0,245,255,.18), 0 0 24px rgba(57,255,20,.1); transition: transform .2s ease, filter .2s ease; }
.brand:hover .brand-logo { transform: translateY(-1px) rotate(-1deg); filter: brightness(1.08); }
.brand-copy { display: flex; flex-direction: column; line-height: 1.05; }
.brand-copy strong { letter-spacing: .13em; font-size: 18px; }
.brand-copy small { color: var(--muted); font-size: 9px; letter-spacing: .18em; margin-top: 5px; }
.nav-links { justify-self: center; display: flex; gap: 28px; font-size: 12px; text-transform: uppercase; letter-spacing: .09em; }
.nav-links a { color: var(--muted); }
.nav-links a:hover { color: var(--cyan); }
.header-actions { display: flex; align-items: center; gap: 10px; }
.header-actions form { margin: 0; }
.operator-chip { color: var(--green-soft); font-size: 11px; border: 1px solid var(--line); padding: 8px 10px; }
.operator-chip i { display: inline-block; width: 6px; height: 6px; border-radius: 50%; background: var(--green); box-shadow: var(--shadow-green); margin-right: 7px; }

.page-shell { width: min(1440px, calc(100% - 40px)); margin: 0 auto; min-height: calc(100vh - 165px); position: relative; z-index: 2; }
.site-footer { width: min(1440px, calc(100% - 40px)); margin: 72px auto 24px; border-top: 1px solid var(--line); padding: 18px 0; color: var(--muted); font: 11px var(--mono); display: flex; justify-content: space-between; gap: 20px; }
.panel { border: 1px solid var(--line); border-radius: 10px; background: linear-gradient(145deg, rgba(12,20,16,.93), rgba(6,11,10,.95)); box-shadow: 0 22px 80px rgba(0,0,0,.32), inset 0 1px rgba(255,255,255,.03); position: relative; }
.panel::after { content: ""; position: absolute; top: -1px; left: 26px; width: 84px; height: 1px; background: var(--cyan); box-shadow: var(--shadow-cyan); }
.eyebrow { color: var(--cyan); text-transform: uppercase; letter-spacing: .19em; font-size: 11px; margin: 0 0 14px; text-shadow: 0 0 10px rgba(0,245,255,.35); }
.panel-kicker { color: var(--green); font-size: 10px; letter-spacing: .16em; margin-bottom: 18px; }

.button { display: inline-flex; justify-content: center; align-items: center; gap: 13px; border: 1px solid rgba(57,255,20,.68); background: rgba(57,255,20,.08); color: var(--green); padding: 12px 18px; text-transform: uppercase; letter-spacing: .08em; font-size: 11px; box-shadow: inset 0 0 18px rgba(57,255,20,.04); transition: .2s ease; clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 8px 100%, 0 calc(100% - 8px)); }
.button:hover { color: var(--bg); background: var(--green); box-shadow: var(--shadow-green); text-shadow: none; transform: translateY(-1px); }
.button-ghost { border-color: rgba(0,245,255,.48); background: rgba(0,245,255,.04); color: var(--cyan); }
.button-ghost:hover { background: var(--cyan); box-shadow: var(--shadow-cyan); color: var(--bg); }
.button-danger { border-color: rgba(255,77,109,.55); color: #ff8ca0; background: rgba(255,77,109,.05); }
.button-danger:hover { background: var(--danger); color: white; box-shadow: 0 0 20px rgba(255,77,109,.35); }
.button-large { padding: 15px 23px; }
.button-small { padding: 8px 12px; font-size: 9px; }
.button-full { width: 100%; }
.text-button { color: var(--cyan); background: none; border: none; padding: 0; font: 11px var(--mono); text-transform: uppercase; letter-spacing: .08em; }
.text-button:disabled { color: #476056; cursor: not-allowed; }

.flash-stack { position: fixed; top: 100px; right: 22px; z-index: 60; display: grid; gap: 10px; max-width: 520px; }
.flash { padding: 13px 16px; background: rgba(7,13,10,.97); border: 1px solid var(--line); box-shadow: 0 16px 50px rgba(0,0,0,.55); font: 12px var(--mono); }
.flash span { color: var(--cyan); margin-right: 9px; }
.flash-success { border-color: rgba(57,255,20,.45); color: var(--green-soft); }
.flash-error { border-color: rgba(255,77,109,.55); color: #ff9bad; }
.flash-warning { border-color: rgba(255,213,74,.5); color: #ffe48e; }

.hero { min-height: 660px; display: grid; grid-template-columns: 1.05fr .8fr; align-items: center; gap: 7vw; padding: 70px 3vw 40px; }
.hero-copy { position: relative; }
.hero-copy::before { content: "//"; position: absolute; color: rgba(57,255,20,.09); font: 170px/1 var(--mono); left: -60px; top: -80px; z-index: -1; }
.hero h1, .dashboard-head h1, .challenge-head h1, .page-head h1, .auth-side h1 { font-size: clamp(44px, 6vw, 88px); line-height: .96; letter-spacing: -.045em; margin: 0 0 24px; text-shadow: 0 0 30px rgba(238,253,247,.08); }
.hero h1 span { color: transparent; -webkit-text-stroke: 1px rgba(0,245,255,.78); text-shadow: 0 0 20px rgba(0,245,255,.14); }
.hero-lead { max-width: 720px; color: #aac0b5; font-size: 19px; }
.hero-actions { display: flex; gap: 13px; margin: 34px 0; flex-wrap: wrap; }
.method-line { display: flex; align-items: center; flex-wrap: wrap; gap: 10px; font: 10px var(--mono); letter-spacing: .12em; color: var(--muted); }
.method-line b { color: var(--green); }
.hero-terminal { padding: 0; transform: rotate(1.2deg); overflow: hidden; isolation: isolate; }
.hero-logo { position: absolute; width: 210px; height: 210px; right: 22px; bottom: 18px; object-fit: cover; border-radius: 32px; opacity: .11; filter: saturate(1.2); z-index: 0; pointer-events: none; }
.hero-terminal .terminal-bar, .hero-terminal pre { position: relative; z-index: 1; }
.hero-terminal::before { content: "VIRTUAL LAB"; position: absolute; right: -30px; top: 85px; transform: rotate(90deg); font: 9px var(--mono); letter-spacing: .22em; color: var(--cyan); }
.terminal-bar { height: 40px; border-bottom: 1px solid var(--line); display: flex; align-items: center; gap: 7px; padding: 0 14px; background: rgba(0,0,0,.32); }
.terminal-bar span { width: 8px; height: 8px; border-radius: 50%; background: #244037; }
.terminal-bar span:first-child { background: var(--danger); }
.terminal-bar span:nth-child(2) { background: #ffd54a; }
.terminal-bar span:nth-child(3) { background: var(--green); box-shadow: var(--shadow-green); }
.terminal-bar em { margin-left: auto; color: var(--muted); font: normal 9px var(--mono); }
.hero-terminal pre { margin: 0; padding: 35px 35px 42px; min-height: 330px; color: #9bb7a8; font-size: 13px; }
.hero-terminal strong { color: var(--white); }
.hero-terminal i { color: var(--green); font-style: normal; }
.term-prompt { color: var(--cyan); }
.cursor { animation: blink 1s steps(1) infinite; color: var(--green); }
@keyframes blink { 50% { opacity: 0; } }

.campaign-strip { display: grid; grid-template-columns: repeat(3, 1fr); border: 1px solid var(--line); margin: 0 3vw 100px; background: rgba(8,14,11,.78); }
.campaign-strip div { padding: 24px 28px; border-right: 1px solid var(--line); display: flex; align-items: baseline; gap: 13px; }
.campaign-strip div:last-child { border-right: 0; }
.campaign-strip strong { font: 42px var(--mono); color: var(--green); text-shadow: var(--shadow-green); }
.campaign-strip span { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .08em; }
.section-heading { margin: 0 3vw 35px; max-width: 800px; }
.section-heading h2 { font-size: clamp(32px, 4vw, 58px); line-height: 1.05; margin: 0; }
.section-heading.compact { margin-top: 56px; margin-left: 0; }
.section-heading.compact h2 { font-size: 34px; }
.stage-ribbon { display: grid; grid-template-columns: repeat(12, 1fr); gap: 16px; margin: 0 3vw 100px; }
.stage-preview { grid-column: span 4; min-height: 300px; border: 1px solid var(--line); padding: 28px; position: relative; overflow: hidden; background: linear-gradient(145deg, rgba(12,20,16,.9), rgba(5,10,9,.97)); transition: .25s ease; }
.stage-preview:nth-child(2), .stage-preview:nth-child(5) { transform: translateY(24px); }
.stage-preview:hover { transform: translateY(-5px); border-color: rgba(0,245,255,.38); box-shadow: 0 20px 80px rgba(0,245,255,.07); }
.stage-preview:nth-child(2):hover, .stage-preview:nth-child(5):hover { transform: translateY(19px); }
.stage-index { position: absolute; right: 16px; top: 4px; font: 74px var(--mono); color: rgba(57,255,20,.055); }
.stage-preview h3 { font-size: 25px; line-height: 1.12; margin: 8px 0 12px; max-width: 80%; }
.stage-preview p:not(.stage-code) { color: var(--muted); }
.stage-preview code { color: var(--green-soft); font-size: 11px; }
.boss-tag { position: absolute; bottom: 0; left: 0; right: 0; padding: 12px 26px; border-top: 1px solid var(--line); font: 9px var(--mono); color: var(--cyan); letter-spacing: .1em; }
.safety-manifest { margin: 0 3vw; padding: 42px; display: grid; grid-template-columns: .7fr 1.3fr; gap: 50px; }
.safety-manifest h2 { font-size: 42px; line-height: 1.05; margin: 0; }
.manifest-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px 30px; }
.manifest-grid p { color: #a6bcb1; margin: 0; }
.manifest-grid span { color: var(--green); font: 11px var(--mono); margin-right: 8px; }

.auth-layout { min-height: 720px; display: grid; grid-template-columns: 1fr 480px; gap: 10vw; align-items: center; padding: 60px 5vw; }
.auth-side h1 { font-size: clamp(45px, 5vw, 72px); }
.auth-side > p:last-of-type { color: var(--muted); max-width: 700px; font-size: 18px; }
.auth-ascii { margin-top: 32px; padding: 24px; width: max-content; max-width: 100%; color: var(--green-soft); }
.auth-ascii pre { margin: 0; white-space: pre-wrap; }
.auth-card { padding: 38px; }
label { display: grid; gap: 8px; margin-bottom: 17px; color: #b8ccc2; font: 11px var(--mono); text-transform: uppercase; letter-spacing: .08em; }
input, textarea { width: 100%; border: 1px solid rgba(103,166,136,.3); background: rgba(0,0,0,.42); color: var(--white); padding: 13px 14px; outline: none; font: 13px var(--mono); text-transform: none; letter-spacing: normal; border-radius: 0; }
textarea { resize: vertical; min-height: 110px; }
input:focus, textarea:focus { border-color: var(--cyan); box-shadow: 0 0 0 2px rgba(0,245,255,.06), inset 0 0 16px rgba(0,245,255,.025); }
.form-switch { color: var(--muted); text-align: center; font-size: 13px; margin: 20px 0 0; }

.dashboard-head { padding: 70px 2vw 30px; display: flex; align-items: end; justify-content: space-between; gap: 30px; }
.dashboard-head h1 { font-size: clamp(45px, 6vw, 78px); margin-bottom: 14px; }
.dashboard-head > div:first-child > p:last-child { color: var(--muted); max-width: 700px; }
.xp-orbit { width: 190px; height: 190px; flex: 0 0 auto; border: 1px solid rgba(0,245,255,.38); border-radius: 50%; display: grid; place-content: center; text-align: center; box-shadow: inset 0 0 60px rgba(0,245,255,.04), var(--shadow-cyan); position: relative; }
.xp-orbit::before { content: ""; position: absolute; inset: 12px; border: 1px dashed rgba(57,255,20,.28); border-radius: 50%; animation: rotate 18s linear infinite; }
@keyframes rotate { to { transform: rotate(360deg); } }
.xp-orbit span, .xp-orbit small { font: 9px var(--mono); letter-spacing: .13em; color: var(--muted); }
.xp-orbit strong { font: 42px var(--mono); color: var(--white); text-shadow: 0 0 15px rgba(255,255,255,.25); }
.metric-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin: 10px 2vw 70px; }
.metric { border: 1px solid var(--line); border-radius: 9px; background: rgba(8,14,12,.8); padding: 23px; min-height: 125px; display: flex; flex-direction: column; justify-content: space-between; }
.metric > span { color: var(--cyan); font: 9px var(--mono); letter-spacing: .15em; }
.metric strong { font: 31px var(--mono); }
.metric strong i { color: var(--muted); font-size: 15px; font-style: normal; }
.metric small { color: var(--muted); }
.progress-bar { height: 4px; background: #132019; overflow: hidden; }
.progress-bar b { display: block; height: 100%; width: var(--progress, 0%); background: var(--green); box-shadow: var(--shadow-green); transition: width .5s ease; }
.ultimate-metric { border-color: rgba(0,245,255,.25); }
.map-shell { position: relative; padding-left: 4vw; }
.map-rail { position: absolute; left: 25px; top: 120px; bottom: 120px; width: 1px; background: linear-gradient(var(--cyan), var(--green), var(--cyan)); box-shadow: 0 0 12px rgba(0,245,255,.28); }
.stage-block { margin: 0 0 65px; border-top: 1px solid var(--line); padding-top: 26px; position: relative; }
.stage-block::before { content: ""; position: absolute; left: calc(-4vw - 5px); top: 20px; width: 11px; height: 11px; border: 2px solid var(--green); background: var(--bg); box-shadow: var(--shadow-green); transform: rotate(45deg); }
.stage-block-head { display: grid; grid-template-columns: 85px minmax(300px, 1fr) auto; align-items: start; gap: 20px; margin-bottom: 24px; }
.stage-number { font: 61px var(--mono); color: rgba(57,255,20,.2); line-height: 1; }
.stage-block-head h2 { font-size: 30px; margin: 0 0 7px; }
.stage-block-head p:not(.stage-code) { margin: 0; color: var(--muted); }
.stage-block-head > code { color: var(--green-soft); border: 1px solid var(--line); padding: 9px 12px; }
.level-track { display: grid; grid-template-columns: repeat(6, 1fr); gap: 10px; }
.node { min-height: 155px; padding: 20px; border: 1px solid var(--line); border-radius: 9px; display: flex; flex-direction: column; background: rgba(8,14,12,.75); position: relative; overflow: hidden; transition: .2s ease; }
.node::after { content: ""; position: absolute; inset: auto 0 0; height: 2px; background: #20372b; }
.node span { color: var(--cyan); font: 10px var(--mono); letter-spacing: .12em; }
.node strong { color: var(--white); line-height: 1.2; margin: 15px 0 auto; }
.node small { color: var(--muted); font: 8px var(--mono); letter-spacing: .13em; }
.node.open:hover { transform: translateY(-4px); border-color: rgba(0,245,255,.5); box-shadow: 0 16px 50px rgba(0,245,255,.06); }
.node.open::after { background: var(--cyan); box-shadow: var(--shadow-cyan); }
.node.complete { border-color: rgba(57,255,20,.38); background: linear-gradient(145deg, rgba(57,255,20,.07), rgba(8,14,12,.8)); }
.node.complete::after { background: var(--green); box-shadow: var(--shadow-green); }
.node.complete small { color: var(--green); }
.node.locked { opacity: .35; filter: grayscale(.7); cursor: not-allowed; }
.boss-node { transform: translateY(-8px); border-color: rgba(0,245,255,.22); background: linear-gradient(145deg, rgba(0,245,255,.055), rgba(8,14,12,.85)); }
.boss-node strong { color: var(--cyan); }
.ultimate-card { margin: 80px 2vw 0; padding: 40px; border: 1px dashed rgba(100,130,115,.28); display: flex; justify-content: space-between; gap: 30px; align-items: center; background: rgba(5,9,8,.65); }
.ultimate-card.is-open { border-style: solid; border-color: rgba(0,245,255,.5); box-shadow: inset 0 0 55px rgba(0,245,255,.035), var(--shadow-cyan); }
.ultimate-card h2 { font-size: 36px; margin: 0 0 5px; }
.ultimate-card p:last-child { color: var(--muted); }
.locked-stamp { border: 1px solid #3d4d45; padding: 12px 15px; color: var(--muted); font: 9px var(--mono); letter-spacing: .12em; }

.challenge-head { padding: 60px 1vw 28px; display: flex; justify-content: space-between; gap: 25px; align-items: end; border-bottom: 1px solid var(--line); }
.challenge-head h1 { font-size: clamp(44px, 5vw, 75px); margin-bottom: 14px; }
.challenge-head > div:first-child > p:last-child { color: var(--muted); max-width: 850px; }
.back-link { display: inline-block; font: 10px var(--mono); text-transform: uppercase; letter-spacing: .1em; margin-bottom: 25px; }
.completion-seal { min-width: 145px; min-height: 105px; border: 1px solid rgba(0,245,255,.3); display: grid; place-content: center; text-align: center; transform: rotate(2deg); }
.completion-seal span { color: var(--cyan); font: 15px var(--mono); letter-spacing: .15em; }
.completion-seal small { color: var(--muted); font: 8px var(--mono); margin-top: 6px; }
.completion-seal.done { border-color: var(--green); box-shadow: var(--shadow-green); }
.completion-seal.done span { color: var(--green); }
.challenge-layout { display: grid; grid-template-columns: minmax(0, 1fr) 350px; gap: 18px; padding: 32px 1vw 0; }
.challenge-main, .challenge-side { display: grid; align-content: start; gap: 18px; }
.briefing { padding: 28px; }
.briefing > p { color: #b2c8bd; font-size: 17px; }
.safety-note, .learning-outcome { margin-top: 22px; border-left: 2px solid var(--green); padding: 10px 14px; color: var(--muted); font-size: 13px; background: rgba(57,255,20,.025); }
.safety-note strong, .learning-outcome strong { color: var(--green); font: 9px var(--mono); display: block; letter-spacing: .12em; margin-bottom: 5px; }
.learning-outcome { border-left-color: var(--cyan); background: rgba(0,245,255,.025); color: #b6d1c5; }
.learning-outcome strong { color: var(--cyan); }
.terminal-panel { overflow: hidden; }
.terminal-output { min-height: 290px; max-height: 540px; overflow: auto; padding: 25px; background: rgba(0,0,0,.34); border-bottom: 1px solid var(--line); }
.terminal-output pre { white-space: pre-wrap; overflow-wrap: anywhere; margin: 0; color: var(--green-soft); font-size: 13px; }
.terminal-output pre::before { content: "lab$ "; color: var(--cyan); }
.runtime-form { padding: 24px; }
.runtime-form .button { margin-top: 5px; }
.flag-panel { padding: 28px; display: grid; grid-template-columns: 1fr .9fr; gap: 30px; align-items: end; }
.flag-panel h2 { margin: 0; font-size: 31px; }
.flag-panel p:last-child { color: var(--muted); }
.flag-panel code { color: var(--green); }
.flag-panel form { display: flex; gap: 8px; }
.hint-panel, .reference-panel, .reset-panel { padding: 24px; }
.hint-row { border-top: 1px solid var(--line); padding: 17px 0; display: grid; grid-template-columns: 32px 1fr; align-items: start; }
.hint-row > span { color: var(--green); font: 10px var(--mono); }
.hint-row p { margin: 0; color: #b1c5bb; font-size: 14px; }
.reference-panel a { display: block; border: 1px solid rgba(0,245,255,.25); padding: 12px; font: 10px var(--mono); }
.reference-panel p, .reset-panel p { color: var(--muted); font-size: 13px; }

.page-head { padding: 70px 1vw 35px; max-width: 900px; }
.page-head h1 { font-size: clamp(48px, 6vw, 80px); margin-bottom: 10px; }
.page-head > p:last-child { color: var(--muted); }
.timeline { display: grid; gap: 40px; }
.timeline-stage { border-left: 1px solid var(--line); padding-left: 25px; }
.timeline-stage-head { display: flex; align-items: center; gap: 15px; margin-bottom: 14px; }
.timeline-stage-head > span { font: 32px var(--mono); color: rgba(57,255,20,.4); }
.timeline-stage-head p { margin: 0; color: var(--cyan); font: 9px var(--mono); }
.timeline-stage-head h2 { margin: 0; font-size: 25px; }
.timeline-entries { display: grid; grid-template-columns: repeat(6, 1fr); gap: 8px; }
.timeline-entry { border: 1px solid var(--line); padding: 16px; display: grid; min-height: 110px; background: rgba(8,14,12,.7); }
.timeline-entry span { color: var(--cyan); font: 8px var(--mono); }
.timeline-entry strong { color: var(--white); line-height: 1.15; font-size: 14px; }
.timeline-entry small { color: var(--muted); font: 8px var(--mono); }
.timeline-entry.done { border-color: rgba(57,255,20,.4); }
.timeline-entry.done small { color: var(--green); }
.timeline-entry.locked { opacity: .35; cursor: not-allowed; }
.ultimate-line { margin-top: 40px; min-height: auto; grid-template-columns: 100px 1fr auto; align-items: center; }

.profile-grid { padding-top: 70px; display: grid; grid-template-columns: .7fr 1.3fr; gap: 16px; }
.profile-identity { padding: 35px; text-align: center; }
.avatar-glyph { width: 100px; height: 100px; margin: 10px auto 18px; border: 1px solid var(--green); display: grid; place-content: center; font: 50px var(--mono); color: var(--green); box-shadow: var(--shadow-green), inset 0 0 35px rgba(57,255,20,.06); transform: rotate(-3deg); }
.profile-identity h1 { font-size: 40px; margin: 0; }
.profile-identity > p:last-of-type { color: var(--muted); }
.profile-xp { margin-top: 30px; border-top: 1px solid var(--line); padding-top: 20px; display: flex; justify-content: space-between; align-items: baseline; }
.profile-xp span { color: var(--cyan); font: 9px var(--mono); }
.profile-xp strong { font: 42px var(--mono); }
.profile-stats { padding: 35px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 15px; align-items: center; }
.profile-stats div { border-right: 1px solid var(--line); padding: 20px; }
.profile-stats div:last-child { border-right: 0; }
.profile-stats span { display: block; color: var(--muted); font: 9px var(--mono); margin-bottom: 16px; }
.profile-stats strong { font: 38px var(--mono); color: var(--green-soft); }
.table-wrap { overflow: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 14px 18px; border-bottom: 1px solid var(--line); }
th { color: var(--cyan); font: 9px var(--mono); letter-spacing: .12em; }
td { color: #b9cdc3; font-family: var(--mono); font-size: 12px; }
.leaderboard { padding: 15px 25px; }
.leader-row { min-height: 70px; display: grid; grid-template-columns: 60px 1fr 150px 120px; align-items: center; border-bottom: 1px solid var(--line); gap: 15px; }
.leader-row:last-child { border-bottom: 0; }
.leader-row .rank { color: rgba(57,255,20,.45); font: 20px var(--mono); }
.leader-row > span:not(.rank) { color: var(--muted); font-size: 13px; }
.leader-row b { color: var(--green); font-family: var(--mono); text-align: right; }
.empty-state { color: var(--muted); padding: 20px; }
.error-screen { max-width: 700px; margin: 100px auto; padding: 50px; text-align: center; }
.error-screen h1 { font: 100px/1 var(--mono); color: var(--green); margin: 0; text-shadow: var(--shadow-green); }
.error-screen h2 { font-size: 32px; margin: 8px 0; }
.error-screen p { color: var(--muted); margin-bottom: 30px; }

@media (max-width: 1180px) {
  .nav-links { display: none; }
  .site-header { grid-template-columns: 1fr auto; }
  .hero { grid-template-columns: 1fr; padding-top: 100px; }
  .hero-terminal { max-width: 700px; }
  .stage-preview { grid-column: span 6; }
  .level-track, .timeline-entries { grid-template-columns: repeat(3, 1fr); }
  .metric-grid { grid-template-columns: repeat(2, 1fr); }
  .challenge-layout { grid-template-columns: 1fr; }
  .challenge-side { grid-template-columns: repeat(3, 1fr); }
  .auth-layout { grid-template-columns: 1fr 420px; gap: 5vw; }
}
@media (max-width: 760px) {
  .page-shell, .site-footer, .site-header { width: min(100% - 22px, 1440px); }
  .site-header { margin-top: 10px; }
  .brand-copy { display: none; }
  .brand-logo { width: 45px; height: 45px; }
  .operator-chip { display: none; }
  .hero { padding: 70px 4px 30px; min-height: auto; }
  .hero h1, .dashboard-head h1, .challenge-head h1, .page-head h1, .auth-side h1 { font-size: 43px; }
  .campaign-strip { grid-template-columns: 1fr 1fr; margin: 50px 0 70px; }
  .campaign-strip div:nth-child(2) { border-right: 0; }
  .campaign-strip div { padding: 18px; }
  .campaign-strip strong { font-size: 31px; }
  .stage-ribbon { display: grid; margin: 0 0 70px; }
  .stage-preview { grid-column: span 12; transform: none !important; }
  .safety-manifest { margin: 0; padding: 27px; grid-template-columns: 1fr; gap: 20px; }
  .manifest-grid { grid-template-columns: 1fr; }
  .auth-layout { grid-template-columns: 1fr; padding: 55px 0; }
  .auth-card { padding: 27px; }
  .dashboard-head { align-items: start; padding-left: 0; padding-right: 0; }
  .xp-orbit { width: 110px; height: 110px; }
  .xp-orbit strong { font-size: 26px; }
  .xp-orbit small { display: none; }
  .metric-grid { margin-left: 0; margin-right: 0; }
  .map-shell { padding-left: 25px; }
  .map-rail { left: 5px; }
  .stage-block::before { left: -25px; }
  .stage-block-head { grid-template-columns: 60px 1fr; }
  .stage-block-head > code { display: none; }
  .level-track, .timeline-entries { grid-template-columns: 1fr 1fr; }
  .node { min-height: 135px; }
  .ultimate-card { margin-left: 0; margin-right: 0; align-items: start; flex-direction: column; }
  .challenge-head { align-items: start; }
  .completion-seal { min-width: 90px; min-height: 80px; }
  .challenge-layout { padding-left: 0; padding-right: 0; }
  .challenge-side { grid-template-columns: 1fr; }
  .flag-panel { grid-template-columns: 1fr; }
  .flag-panel form { flex-direction: column; }
  .timeline-stage { padding-left: 12px; }
  .ultimate-line { grid-template-columns: 1fr; }
  .profile-grid { grid-template-columns: 1fr; }
  .profile-stats { grid-template-columns: 1fr; }
  .profile-stats div { border-right: 0; border-bottom: 1px solid var(--line); }

  .leader-row { grid-template-columns: 45px 1fr auto; }
  .leader-row > span:not(.rank) { display: none; }
  .site-footer { flex-direction: column; }
}
@media (max-width: 470px) {
  .header-actions .button-ghost { display: none; }
  .hero-actions .button { width: 100%; }
  .campaign-strip { grid-template-columns: 1fr; }
  .campaign-strip div { border-right: 0; border-bottom: 1px solid var(--line); }
  .level-track, .timeline-entries, .metric-grid { grid-template-columns: 1fr; }
  .dashboard-head { display: block; }
  .xp-orbit { margin: 25px 0 0 auto; }
  .challenge-head { display: block; }
  .completion-seal { margin: 20px 0 0 auto; width: 100px; }
}

.reset-heading {
  margin-top: 54px;
}

.reset-danger-card {
  padding: 30px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 28px;
  border-color: rgba(255, 77, 109, .32);
  background:
    radial-gradient(circle at 0 0, rgba(255, 77, 109, .13), transparent 34%),
    linear-gradient(145deg, rgba(13, 18, 16, .97), rgba(5, 9, 8, .98));
  overflow: hidden;
}

.reset-danger-card::after {
  left: 28px;
  width: 150px;
  background: linear-gradient(90deg, var(--danger), var(--cyan));
  box-shadow: 0 0 22px rgba(255, 77, 109, .38);
}

.reset-copy {
  position: relative;
  z-index: 1;
}

.reset-badge {
  display: inline-flex;
  width: fit-content;
  margin-bottom: 14px;
  border: 1px solid rgba(255, 77, 109, .38);
  border-radius: 999px;
  padding: 7px 11px;
  color: #ff9cad;
  background: rgba(255, 77, 109, .08);
  font: 10px var(--mono);
  letter-spacing: .14em;
  text-transform: uppercase;
}

.reset-copy h3 {
  margin: 0 0 10px;
  font-size: 25px;
  letter-spacing: -.02em;
}

.reset-copy p {
  max-width: 780px;
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

.reset-actions {
  position: relative;
  z-index: 1;
  display: flex;
  justify-content: flex-end;
}

.reset-button {
  min-width: 180px;
  border-color: rgba(255, 77, 109, .78);
  background: rgba(255, 77, 109, .08);
}

.reset-button:hover {
  background: var(--danger);
  color: #fff;
  box-shadow: 0 0 30px rgba(255, 77, 109, .42);
}

@media (max-width: 760px) {
  .reset-danger-card {
    grid-template-columns: 1fr;
    padding: 24px;
  }

  .reset-actions {
    justify-content: stretch;
  }

  .reset-button {
    width: 100%;
  }
}