@import url("https://fonts.googleapis.com/css2?family=IBM+Plex+Sans:wght@300;400;500;600&family=Space+Grotesk:wght@300..700&display=swap");:root{--blue-900:#071326;--blue-800:#0b2142;--blue-700:#10305f;--blue-200:#b7d7ff;--blue-100:#d9ecff;--accent:#69b5ff;--black:#06080d;--white:#f7fbff}*{box-sizing:border-box}body,html{padding:0;margin:0;font-family:IBM Plex Sans,Space Grotesk,system-ui,-apple-system,sans-serif;color:var(--white);background:radial-gradient(1200px 600px at 20% -10%,#1b5aa7 0,var(--blue-900) 45%,#05080f 100%);min-height:100%}a{color:inherit;text-decoration:none}main{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:40px 24px}.shell{width:min(980px,100%);background:linear-gradient(160deg,rgba(9,18,34,.9),rgba(6,10,20,.95));border:1px solid rgba(105,181,255,.25);border-radius:22px;padding:28px;box-shadow:0 30px 80px rgba(5,10,20,.55)}.header{display:flex;flex-direction:column;gap:6px;margin-bottom:20px}.title{font-family:Space Grotesk,IBM Plex Sans,system-ui,sans-serif;font-size:28px;letter-spacing:.4px;text-transform:uppercase}.subtitle{color:var(--blue-200);font-size:14px}.chat{display:grid;grid-template-rows:1fr auto;grid-gap:16px;gap:16px}.chat-history{min-height:380px;max-height:60vh;overflow-y:auto;padding:16px;border-radius:16px;background:rgba(8,16,30,.75);border:1px solid rgba(105,181,255,.2)}.message{padding:12px 14px;border-radius:14px;margin-bottom:12px;line-height:1.5;white-space:pre-wrap}.message.user{background:rgba(105,181,255,.15);border:1px solid rgba(105,181,255,.3);align-self:flex-end}.message.assistant{background:rgba(217,236,255,.08);border:1px solid rgba(183,215,255,.25)}.input-row{display:flex;gap:12px}textarea{flex:1 1;background:rgba(6,10,20,.9);border:1px solid rgba(105,181,255,.35);color:var(--white);padding:12px 14px;border-radius:14px;resize:vertical;min-height:70px;font-family:var(--font-body),system-ui,sans-serif}button{background:linear-gradient(140deg,var(--accent),#2e7dd6);border:none;color:var(--black);padding:14px 18px;border-radius:14px;font-weight:600;cursor:pointer;min-width:120px}button:disabled{opacity:.6;cursor:not-allowed}.form-card{display:grid;grid-gap:14px;gap:14px}input[type=password],input[type=text]{width:100%;padding:12px 14px;border-radius:12px;border:1px solid rgba(105,181,255,.35);background:rgba(6,10,20,.9);color:var(--white);font-size:14px}small{color:var(--blue-200)}.admin-textarea{min-height:360px}.top-actions{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}.link-button{background:transparent;border:1px solid rgba(105,181,255,.4);color:var(--blue-100);padding:8px 12px;border-radius:10px;font-size:13px;cursor:pointer}@media (max-width:720px){.shell{padding:20px}.input-row{flex-direction:column}button{width:100%}}