:root{--teal:#0f766e;--teal-dark:#115e59;--ink:#12221f;--muted:#64748b;--line:#e5e7eb;--bg:#f6f8f7;--card:#fff;--red:#e95d50;--green:#1d9b75;--blue:#457bca}*{box-sizing:border-box}body{margin:0;font-family:Inter,"Noto Sans Bengali",system-ui,sans-serif;color:var(--ink);background:var(--bg)}button,input,select{font:inherit}button{cursor:pointer}.hidden{display:none!important}.auth-shell{min-height:100vh;display:grid;place-items:center;padding:24px;background:linear-gradient(135deg,#e6fffa,#f8fafc)}.auth-card{width:min(480px,100%);background:#fff;border:1px solid #dce7e4;border-radius:22px;padding:40px;box-shadow:0 18px 50px #0f766e18}.brand{display:flex;align-items:center;gap:10px}.brand>span{display:grid;place-items:center;width:38px;height:38px;border-radius:11px;background:var(--teal);color:#fff;font-size:22px;font-weight:800}.brand strong,.brand small{display:block}.brand small{color:var(--muted);font-size:11px;margin-top:2px}.auth-card h1{font-size:27px;line-height:1.3;margin:30px 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