:root{
    --aki-orange:#ff6b21;
    --aki-orange-dark:#da4f08;
    --aki-orange-soft:#fff1e7;
    --aki-ink:#171717;
    --aki-muted:#6c7480;
    --aki-line:#e8eaed;
    --aki-bg:#f7f7f8;
    --aki-card:#fff
}
*{box-sizing:border-box}
body{margin:0;font-family:Inter,Segoe UI,Arial,sans-serif;background:linear-gradient(145deg,#fff5ed,#f7f7f8 48%,#fff);color:var(--aki-ink);min-height:100vh}
a{text-decoration:none;color:inherit}
button,input{font:inherit}
.auth-shell{min-height:100vh;display:grid;grid-template-columns:minmax(300px,.9fr) minmax(420px,1.1fr)}
.auth-brand-panel{padding:48px;display:flex;flex-direction:column;justify-content:space-between;background:linear-gradient(145deg,#181818,#2c211a 64%,#71300f);color:#fff}
.auth-brand img{height:54px;max-width:190px;object-fit:contain}
.auth-brand-copy{max-width:590px}
.auth-eyebrow{display:block;color:#ffae7c;text-transform:uppercase;letter-spacing:.18em;font-size:12px;font-weight:900}
.auth-brand-copy h1{font-size:clamp(42px,5vw,72px);line-height:1.02;letter-spacing:-.055em;margin:18px 0}
.auth-brand-copy p{color:#ded3cc;font-size:18px;line-height:1.7}
.auth-benefits{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:28px}
.auth-benefit{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12);border-radius:16px;padding:16px}
.auth-benefit span{font-size:26px}.auth-benefit strong{display:block;margin-top:9px;font-size:13px}
.auth-form-panel{padding:36px;display:grid;place-items:center}
.auth-card{width:min(540px,100%);background:var(--aki-card);border:1px solid var(--aki-line);border-radius:28px;padding:34px;box-shadow:0 25px 70px rgba(32,35,39,.10)}
.auth-card h2{font-size:32px;letter-spacing:-.04em;margin:0 0 8px}
.auth-card>.subtitle{color:var(--aki-muted);line-height:1.6;margin:0 0 24px}
.auth-alert{border-radius:13px;padding:13px 15px;margin-bottom:16px;font-size:14px;line-height:1.5}
.auth-alert.error{background:#fef0f0;border:1px solid #fecaca;color:#a61b1b}
.auth-alert.success{background:#ecf9f0;border:1px solid #bbebca;color:#176a38}
.auth-social-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.auth-provider{border:1px solid #dfe2e6;border-radius:14px;background:#fff;min-height:52px;padding:12px 14px;display:flex;align-items:center;justify-content:center;gap:9px;font-weight:800;cursor:pointer}
.auth-provider.whatsapp{grid-column:1/-1;background:#ecfff3;border-color:#b9eaca;color:#156a37}
.auth-provider.disabled{opacity:.52;cursor:not-allowed}
.auth-provider small{font-size:9px;text-transform:uppercase;letter-spacing:.08em;background:#f1f2f4;padding:4px 6px;border-radius:10px}
.auth-divider{display:flex;align-items:center;gap:12px;color:#9aa0a7;font-size:12px;margin:22px 0}
.auth-divider:before,.auth-divider:after{content:"";height:1px;background:#e5e7eb;flex:1}
.auth-field{margin-bottom:14px}
.auth-field label{display:block;font-size:12px;font-weight:900;margin-bottom:7px;color:#4f5660}
.auth-field input{width:100%;border:1px solid #dfe2e6;border-radius:13px;padding:14px;outline:none}
.auth-field input:focus{border-color:var(--aki-orange);box-shadow:0 0 0 4px rgba(255,107,33,.10)}
.auth-submit{width:100%;border:0;border-radius:14px;padding:15px;background:var(--aki-orange);color:#fff;font-weight:900;cursor:pointer}
.auth-submit:hover{background:var(--aki-orange-dark)}
.auth-footer-links{display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;margin-top:18px;font-size:13px}
.auth-footer-links a{font-weight:800;color:var(--aki-orange-dark)}
.auth-note{font-size:11px;color:#858c95;line-height:1.55;margin-top:18px}
.auth-back{display:inline-flex;margin-bottom:20px;color:#606771;font-size:13px;font-weight:800}
@media(max-width:900px){
    .auth-shell{grid-template-columns:1fr}
    .auth-brand-panel{padding:28px;min-height:auto}
    .auth-brand-copy h1{font-size:42px}
    .auth-brand-copy p,.auth-benefits{display:none}
}
@media(max-width:560px){
    .auth-form-panel{padding:14px}
    .auth-card{padding:24px 18px;border-radius:22px}
    .auth-social-grid{grid-template-columns:1fr}
    .auth-provider.whatsapp{grid-column:auto}
}

/* Modal de autenticação pelo WhatsApp */
.aki-wa-modal{position:fixed;inset:0;z-index:300;display:none;align-items:center;justify-content:center;padding:18px}
.aki-wa-modal.open{display:flex}
.aki-wa-backdrop{position:absolute;inset:0;background:rgba(17,17,17,.68);backdrop-filter:blur(5px)}
.aki-wa-dialog{position:relative;z-index:1;width:min(440px,100%);background:#fff;border-radius:26px;padding:30px;box-shadow:0 30px 90px rgba(0,0,0,.30);animation:akiWaEnter .18s ease-out}
@keyframes akiWaEnter{from{opacity:0;transform:translateY(12px) scale(.98)}to{opacity:1;transform:translateY(0) scale(1)}}
.aki-wa-close{position:absolute;top:14px;right:14px;width:36px;height:36px;border:0;border-radius:50%;background:#f3f4f5;color:#555;font-size:24px;line-height:1;cursor:pointer}
.aki-wa-icon{width:58px;height:58px;display:grid;place-items:center;border-radius:18px;background:#eafff1;font-size:30px;margin-bottom:20px}
.aki-wa-dialog h3{font-size:27px;letter-spacing:-.035em;margin:9px 0}
.aki-wa-dialog p{color:#68707a;line-height:1.6;margin:0 0 20px}
.aki-wa-label{display:block;font-size:12px;font-weight:900;margin-bottom:7px;color:#4f5660}
.aki-wa-input{width:100%;border:1px solid #dfe2e6;border-radius:14px;padding:15px;outline:none;font-size:17px}
.aki-wa-input:focus{border-color:#20a75a;box-shadow:0 0 0 4px rgba(32,167,90,.11)}
.aki-wa-code{text-align:center;font-size:28px;font-weight:900;letter-spacing:.28em;padding-left:calc(15px + .28em)}
.aki-wa-primary,.aki-wa-secondary,.aki-wa-link{width:100%;border:0;border-radius:14px;padding:14px;font-weight:900;cursor:pointer;margin-top:12px}
.aki-wa-primary{background:#20a75a;color:#fff}
.aki-wa-primary:hover{background:#168747}
.aki-wa-secondary{background:#eef8f1;color:#197541}
.aki-wa-secondary:disabled{cursor:not-allowed;color:#8c959e;background:#f1f3f4}
.aki-wa-link{background:transparent;color:#68707a;margin-top:4px}
.aki-wa-message{min-height:22px;margin-top:14px;font-size:13px;line-height:1.45;text-align:center}
.aki-wa-message.error{color:#b42318}
.aki-wa-message.success{color:#167542}
body.aki-wa-lock{overflow:hidden}
@media(max-width:560px){.aki-wa-dialog{border-radius:22px;padding:25px 18px}}