.signin-page{min-height:100dvh;display:flex;align-items:center;justify-content:center;padding:24px;background:#0b0f1a;background-image:radial-gradient(900px 500px at 15% -10%,rgba(99,102,241,.22),transparent 60%),radial-gradient(800px 500px at 110% 110%,rgba(139,92,246,.2),transparent 55%),radial-gradient(600px 400px at 50% 120%,rgba(45,212,191,.08),transparent 60%);color:#f3f5f9;font-family:var(--font-sans),system-ui,"Noto Sans Thai",sans-serif}.signin-card{width:100%;max-width:27rem;padding:32px;border-radius:18px;background:rgba(18,26,40,.72);border:1px solid rgba(42,58,80,.7);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);box-shadow:0 24px 60px rgba(2,6,16,.6)}.signin-brand{gap:11px;margin-bottom:26px}.signin-brand,.signin-logo{display:flex;align-items:center}.signin-logo{width:44px;height:44px;border-radius:13px;background:linear-gradient(135deg,#6366f1,#8b5cf6);justify-content:center;color:#fff;flex-shrink:0;box-shadow:0 8px 24px rgba(99,102,241,.45)}.signin-brand-text{display:flex;flex-direction:column;gap:2px}.signin-brand-title{font-size:14px;font-weight:700;letter-spacing:-.01em}.signin-brand-sub{font-size:11px;color:#64748b}.signin-heading{margin:0 0 8px;font-size:1.5rem;font-weight:700;letter-spacing:-.02em}.signin-text{margin:0 0 26px;color:#9aa7b8;line-height:1.6;font-size:14px}.signin-error{display:flex;align-items:flex-start;gap:9px;margin-bottom:18px;padding:12px 14px;border-radius:10px;background:rgba(239,68,68,.12);border:1px solid rgba(239,68,68,.4);color:#f87171;font-size:13px;line-height:1.5}.signin-btn{width:100%;display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:0 18px;min-height:50px;border:none;border-radius:12px;background:linear-gradient(135deg,#6366f1,#8b5cf6);color:#fff;font-size:15px;font-weight:600;font-family:inherit;cursor:pointer;box-shadow:0 8px 24px rgba(99,102,241,.4);transition:filter .15s,box-shadow .15s,transform .1s}.signin-btn:hover:not(:disabled){filter:brightness(1.08);box-shadow:0 10px 30px rgba(99,102,241,.5)}.signin-btn:active:not(:disabled){transform:translateY(1px)}.signin-btn:focus-visible{outline:none;box-shadow:0 0 0 2px #0b0f1a,0 0 0 4px #818cf8}.signin-btn:disabled{opacity:.7;cursor:progress}.signin-spinner{width:17px;height:17px;border:2px solid rgba(255,255,255,.35);border-top-color:#fff;border-radius:50%;animation:signin-spin .7s linear infinite}@keyframes signin-spin{to{transform:rotate(1turn)}}.signin-foot{margin:22px 0 0;text-align:center;font-size:12px;color:#64748b;line-height:1.6}@media (prefers-reduced-motion:reduce){.signin-spinner{animation-duration:1.6s}.signin-btn{transition:none}}