:root{--navy:#071f5f;--blue:#0f3b8f;--cyan:#18c7d2;--bg:#f5f8ff;--text:#172033;--muted:#6b7890;--card:#fff;--border:#e5ebf5;--danger:#dc2626;--success:#16a34a}*{box-sizing:border-box}body{margin:0;font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:var(--bg);color:var(--text)}a{color:inherit;text-decoration:none}.auth-body{min-height:100vh;display:grid;place-items:center;background:radial-gradient(circle at 20% 10%,rgba(24,199,210,.16),transparent 30%),linear-gradient(135deg,#f9fbff,#eef5ff)}.auth-card{width:min(440px,92vw);background:#fff;border:1px solid var(--border);box-shadow:0 24px 70px rgba(7,31,95,.12);border-radius:28px;padding:34px}.logo-mark,.brand-icon{width:54px;height:54px;border-radius:18px;background:linear-gradient(135deg,var(--navy),var(--cyan));color:white;display:grid;place-items:center;font-weight:800}.auth-card h1{margin:18px 0 8px;font-size:28px}.auth-card p{color:var(--muted)}label{display:block;margin:14px 0 8px;font-weight:700;font-size:14px}input,select,textarea{width:100%;border:1px solid var(--border);border-radius:14px;padding:13px 14px;font:inherit;background:#fff}textarea{resize:vertical}button,.button-link{display:inline-flex;justify-content:center;align-items:center;border:0;border-radius:14px;padding:13px 18px;background:linear-gradient(135deg,var(--blue),var(--cyan));color:white;font-weight:800;cursor:pointer;margin-top:16px}button{width:100%}.check{display:flex;gap:10px;align-items:center;color:var(--muted);font-weight:500}.check input{width:auto}.auth-links{display:flex;justify-content:space-between;gap:12px;margin-top:18px;font-size:14px;color:var(--blue)}.app-shell{display:grid;grid-template-columns:280px 1fr;min-height:100vh}.sidebar{background:#071f5f;color:white;padding:24px;position:sticky;top:0;height:100vh;display:flex;flex-direction:column}.brand{display:flex;align-items:center;gap:14px;margin-bottom:30px}.brand small{display:block;color:#bcd3ff;margin-top:4px}.sidebar nav{display:grid;gap:8px}.sidebar a{padding:12px 14px;border-radius:14px;color:#e8f0ff}.sidebar a:hover{background:rgba(255,255,255,.1)}.logout{margin-top:auto;background:rgba(220,38,38,.18);color:#fff!important}.main-content{padding:32px;overflow:auto}.page-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px}.page-header h1{margin:0;font-size:30px}.page-header p{margin:8px 0 0;color:var(--muted)}.stats-grid,.quota-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:16px;margin-bottom:24px}.stat-card,.panel,.quota-card{background:var(--card);border:1px solid var(--border);border-radius:22px;box-shadow:0 12px 40px rgba(15,59,143,.06);padding:20px}.stat-card span{display:block;color:var(--muted);font-weight:700}.stat-card strong{display:block;font-size:32px;margin-top:10px}.stat-card.danger strong{color:var(--danger)}.two-columns{display:grid;grid-template-columns:1fr 1fr;gap:18px}.panel h2{margin-top:0}table{width:100%;border-collapse:collapse}th,td{text-align:left;border-bottom:1px solid var(--border);padding:12px;font-size:14px}th{color:var(--muted)}.progress{height:10px;background:#eef3fb;border-radius:99px;overflow:hidden}.progress span{display:block;height:100%;background:linear-gradient(90deg,var(--blue),var(--cyan));border-radius:99px}.quota-title{font-weight:800;margin-bottom:12px}.quota-meta{font-size:13px;color:var(--muted);margin-top:10px}.alert{padding:14px 16px;border-radius:14px;margin-bottom:16px}.alert.success{background:#ecfdf5;color:#166534}.alert.error{background:#fef2f2;color:#991b1b}.inline-form{display:grid;grid-template-columns:1fr 130px 1fr 160px;gap:12px;align-items:end}.inline-form button{margin:0}.chat-layout{max-width:900px}.answer-box{margin-top:18px;padding:18px;border-radius:18px;background:#f8fbff;border:1px solid var(--border);white-space:pre-wrap}.answer-box:empty{display:none}@media(max-width:900px){.app-shell{grid-template-columns:1fr}.sidebar{position:relative;height:auto}.main-content{padding:18px}.two-columns{grid-template-columns:1fr}.inline-form{grid-template-columns:1fr}.page-header{align-items:flex-start}.stats-grid{grid-template-columns:1fr 1fr}}@media(max-width:560px){.stats-grid,.quota-grid{grid-template-columns:1fr}.auth-card{padding:24px;border-radius:22px}.page-header h1{font-size:24px}}