:root {
	--ink: #070813;
	--panel: #101329;
	--cyan: #25f3e5;
	--pink: #ff3d9a;
	--yellow: #ffe66d;
	--text: #f1f7ff;
	--muted: #aeb7d4;
}

* { box-sizing: border-box; }

body {
	min-height: 100vh;
	margin: 0;
	color: var(--text);
	font-family: "Rajdhani", sans-serif;
	background-color: var(--ink);
	background-image: linear-gradient(rgba(37, 243, 229, .045) 1px, transparent 1px), linear-gradient(90deg, rgba(37, 243, 229, .045) 1px, transparent 1px), radial-gradient(circle at 75% 20%, rgba(255, 61, 154, .16), transparent 28%), radial-gradient(circle at 15% 90%, rgba(37, 243, 229, .13), transparent 26%);
	background-size: 34px 34px, 34px 34px, auto, auto;
}

button, input { font: inherit; }
button { cursor: pointer; }

.app-shell { width: min(100%, 980px); min-height: 100vh; margin: auto; padding: 0 28px 40px; }
.brand-bar { min-height: 90px; display: flex; align-items: center; gap: 24px; border-bottom: 1px solid rgba(37, 243, 229, .28); }
.brand { color: var(--text); font-family: "Orbitron", sans-serif; font-size: 1.1rem; font-weight: 800; letter-spacing: 1px; text-decoration: none; }
.brand span { color: var(--cyan); }
.brand-bar p { margin: 0; color: var(--muted); font-weight: 600; letter-spacing: .4px; }
.brand-bar .teacher { margin-left: auto; color: var(--cyan); }
.screen { animation: reveal .55s ease both; }
.hidden { display: none !important; }

.welcome-screen { max-width: 760px; padding: 82px 0 40px; }
.signal, .result-badge { display: inline-block; padding: 7px 12px; border: 1px solid var(--pink); color: var(--pink); font-family: "Orbitron", sans-serif; font-size: .66rem; letter-spacing: 1.5px; }
.eyebrow { margin: 34px 0 10px; color: var(--cyan); font-family: "Orbitron", sans-serif; font-size: .72rem; font-weight: 700; letter-spacing: 2px; }
h1, h2 { margin: 0; font-family: "Orbitron", sans-serif; letter-spacing: 0; }
h1 { font-size: clamp(2.3rem, 7vw, 5.1rem); line-height: 1.08; }
h1 span { color: var(--pink); text-shadow: 3px 3px 0 rgba(37, 243, 229, .45); }
.intro { max-width: 530px; margin: 27px 0 32px; color: var(--muted); font-size: 1.25rem; line-height: 1.4; }
.access-row { display: flex; align-items: stretch; gap: 32px; }
.access-form { flex: 1; min-width: 0; max-width: 500px; padding: 22px; border: 1px solid rgba(37, 243, 229, .38); background: rgba(16, 19, 41, .78); box-shadow: 7px 7px 0 rgba(255, 61, 154, .32); }
.access-form label { display: block; margin-bottom: 8px; color: var(--cyan); font-family: "Orbitron", sans-serif; font-size: .7rem; letter-spacing: 1px; }
.input-row { display: flex; gap: 10px; }
input { min-width: 0; flex: 1; padding: 13px 15px; border: 1px solid #586088; outline: none; color: var(--text); background: #090b19; font-size: 1.1rem; }
input:focus { border-color: var(--cyan); box-shadow: 0 0 14px rgba(37, 243, 229, .3); }
.input-row button, .primary-action, .next-button { border: 0; padding: 12px 20px; color: #071018; background: var(--cyan); font-family: "Orbitron", sans-serif; font-size: .72rem; font-weight: 800; letter-spacing: .8px; }
.input-row button:hover, .primary-action:hover, .next-button:hover { background: var(--yellow); transform: translate(-2px, -2px); box-shadow: 4px 4px 0 var(--pink); }
.form-error { min-height: 17px; margin: 8px 0 0; color: #ff8dc2; font-weight: 700; }
.mission-stats { display: flex; flex-direction: column; flex: 0 0 auto; justify-content: center; gap: 22px; }
.mission-stats div { display: grid; gap: 1px; }
.mission-stats strong { color: var(--yellow); font-family: "Orbitron", sans-serif; font-size: 1.6rem; }
.mission-stats span { color: var(--muted); font-size: .74rem; font-weight: 700; letter-spacing: 1px; }

.quiz-screen { max-width: 800px; padding-top: 55px; }
.quiz-topline, .progress-meta { display: flex; justify-content: space-between; font-family: "Orbitron", sans-serif; font-size: .75rem; font-weight: 700; letter-spacing: 1px; }
#welcome-name { color: var(--cyan); } #score-display { color: var(--yellow); }
.progress-meta { margin-top: 30px; color: var(--muted); } #progress-percent { color: var(--pink); }
.progress-track { height: 7px; margin-top: 9px; background: #252944; }
#progress-fill { width: 5%; height: 100%; transition: width .35s ease; background: var(--cyan); box-shadow: 0 0 10px var(--cyan); }
.question-panel { margin-top: 38px; padding: 36px; border: 1px solid rgba(37, 243, 229, .42); background: rgba(16, 19, 41, .82); box-shadow: 8px 8px 0 rgba(37, 243, 229, .1); }
.question-panel .eyebrow { margin: 0 0 18px; }
h2 { max-width: 680px; font-size: clamp(1.35rem, 3vw, 2rem); line-height: 1.35; }
.answers { display: grid; gap: 12px; margin-top: 30px; }
.answer { width: 100%; display: flex; align-items: center; gap: 14px; padding: 14px; border: 1px solid #4b5279; color: var(--text); text-align: left; background: rgba(7, 8, 19, .7); font-size: 1.12rem; font-weight: 600; transition: .2s ease; }
.answer:hover:not(:disabled) { border-color: var(--cyan); transform: translateX(5px); }
.answer-letter { display: grid; width: 28px; height: 28px; flex: 0 0 28px; place-items: center; border: 1px solid var(--pink); color: var(--pink); font-family: "Orbitron", sans-serif; font-size: .7rem; }
.answer.correct { border-color: #43e58b; background: rgba(67, 229, 139, .13); } .answer.wrong { border-color: #ff5870; background: rgba(255, 88, 112, .13); }
.feedback { margin-top: 22px; padding: 14px; border-left: 4px solid var(--cyan); color: #d7eaff; background: rgba(37, 243, 229, .08); font-weight: 600; font-size: 1.05rem; }
.feedback.incorrect { border-color: var(--pink); background: rgba(255, 61, 154, .08); }
.next-button { display: block; margin: 22px 0 0 auto; }

.result-screen { max-width: 680px; padding: 70px 0; text-align: center; }
.result-screen .eyebrow { margin-top: 26px; } .result-screen h1 { font-size: clamp(2rem, 5vw, 3.8rem); }
.result-message { max-width: 520px; margin: 20px auto; color: var(--muted); font-size: 1.2rem; line-height: 1.4; }
.score-orb { display: grid; width: 180px; height: 180px; margin: 34px auto 15px; place-content: center; border: 5px solid var(--cyan); border-radius: 50%; box-shadow: 0 0 0 9px rgba(37, 243, 229, .12), 0 0 32px rgba(37, 243, 229, .4); }
.score-orb strong { font-family: "Orbitron", sans-serif; font-size: 2.7rem; }.score-orb span, .score-detail { color: var(--muted); font-size: .75rem; font-weight: 700; letter-spacing: 1px; }
.score-detail { margin: 0; }.result-actions { display: flex; justify-content: center; flex-wrap: wrap; gap: 12px; margin-top: 35px; }.secondary-action { padding: 11px 18px; border: 1px solid var(--pink); color: var(--pink); background: transparent; font-family: "Orbitron", sans-serif; font-size: .72rem; font-weight: 700; letter-spacing: .7px; }.secondary-action:hover { color: var(--text); background: var(--pink); }
#confetti-canvas, #rain-canvas { position: fixed; z-index: 5; inset: 0; width: 100%; height: 100%; pointer-events: none; }

#cloud-layer { position: fixed; z-index: 0; inset: 0; overflow: hidden; pointer-events: none; }
.floating-cloud { position: absolute; top: var(--cloud-top); left: -220px; font-size: var(--cloud-size); opacity: var(--cloud-opacity); filter: drop-shadow(0 0 12px rgba(37, 243, 229, .55)) drop-shadow(0 0 22px rgba(255, 61, 154, .3)); animation: drift var(--cloud-duration) linear var(--cloud-delay) infinite; }
.app-shell { position: relative; z-index: 1; }
@keyframes drift { from { transform: translateX(0); } to { transform: translateX(calc(100vw + 260px)); } }

.answer.correct-pulse { animation: pulse-glow .5s ease; }
.question-panel.shake { animation: shake .4s ease; }
@keyframes pulse-glow { 0% { box-shadow: 0 0 0 rgba(67, 229, 139, 0); } 50% { box-shadow: 0 0 24px rgba(67, 229, 139, .6); } 100% { box-shadow: 0 0 0 rgba(67, 229, 139, 0); } }
@keyframes shake { 20% { transform: translateX(-6px); } 40% { transform: translateX(6px); } 60% { transform: translateX(-4px); } 80% { transform: translateX(4px); } 100% { transform: translateX(0); } }

@keyframes reveal { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: translateY(0); } }
@media (max-width: 620px) { .app-shell { padding: 0 18px 28px; }.brand-bar { min-height: 75px; flex-wrap: wrap; gap: 5px 16px; padding: 12px 0; }.brand-bar p { font-size: .9rem; }.brand-bar .teacher { margin-left: 0; }.welcome-screen { padding-top: 58px; }.input-row { flex-direction: column; }.access-row { flex-direction: column; }.mission-stats { flex-direction: row; gap: 23px; }.question-panel { padding: 24px 18px; }.answer { align-items: flex-start; }.result-screen { padding-top: 58px; } }