*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body.login {
    min-height: 100vh;
    font-family: var(--font);
    color: var(--ink);
    background: var(--water);
    overflow-x: hidden;
    position: relative;
    -webkit-font-smoothing: antialiased;
}
.d-none { display: none !important; }
::selection { background: var(--sun); color: var(--on-color); }
.icon { width: 20px; height: 20px; }

.login-lobe { position: absolute; z-index: 0; pointer-events: none; }
.login-lobe-land { inset: 0 auto 0 0; width: 56vw; height: 100%; fill: var(--land); animation: lobe-in 0.9s var(--ease-over) both; }
.login-lobe-coral { width: 260px; height: 260px; inset-inline-end: -70px; bottom: -80px; fill: var(--coral); animation: lobe-in 1s 0.1s var(--ease-over) both; }
.login-lobe-pond { width: 180px; height: 180px; inset-inline-end: 22vw; top: -70px; fill: var(--pond); animation: lobe-in 1s 0.2s var(--ease-over) both; }
@keyframes lobe-in { from { transform: scale(0.92); opacity: 0; } to { transform: none; opacity: 1; } }

.login-stage { position: relative; z-index: 1; min-height: 100vh; display: grid; grid-template-columns: minmax(0, 1fr) minmax(340px, 440px); align-items: center; gap: var(--s7); padding: var(--s7) clamp(var(--s5), 6vw, var(--s8)); max-width: 1320px; margin: 0 auto; }

.login-shop { color: var(--land-ink); max-width: 560px; }
.login-shop-id { display: flex; align-items: center; gap: var(--s3); margin-bottom: var(--s6); }
.login-logo { width: 64px; height: 64px; object-fit: contain; border-radius: 18px; }
.login-product { font-weight: 800; font-size: var(--text-lg); letter-spacing: -0.02em; }
.login-shop-name { margin: 0; font-size: clamp(2.75rem, 6.2vw, 5.5rem); line-height: var(--leading-display); letter-spacing: var(--tracking-display); font-weight: 820; text-wrap: balance; overflow-wrap: anywhere; }

.login-card { background: var(--paper); border: var(--hair) solid var(--rule-strong); border-radius: var(--r-lobe); padding: var(--s6); }
.login-card form { display: flex; flex-direction: column; gap: var(--s4); margin: 0; }
#form-heading { margin: 0; font-size: var(--text-2xl); font-weight: 800; letter-spacing: -0.03em; line-height: 1.05; }

.login-fields { display: flex; flex-direction: column; gap: var(--s4); }
.login-field { display: flex; flex-direction: column; gap: 6px; font-weight: 650; font-size: var(--text-sm); }
.login-field input {
    width: 100%;
    min-height: 50px;
    padding: 12px 16px;
    font: inherit;
    font-size: var(--text-lg);
    font-weight: 500;
    color: var(--ink);
    background: var(--water);
    border: var(--hair) solid var(--rule-strong);
    border-radius: var(--r-field);
    caret-color: var(--link);
    transition: border-color var(--dur-fast) ease, box-shadow var(--dur-fast) ease;
}
.login-field input:focus { outline: none; border-color: var(--link); box-shadow: 0 0 0 3px color-mix(in oklab, var(--link) 22%, transparent); }
.login-password { position: relative; display: block; }
.login-password input { padding-inline-end: 54px; }
.login-reveal { position: absolute; inset-inline-end: 6px; top: 50%; transform: translateY(-50%); width: 40px; height: 40px; display: grid; place-items: center; border: 0; border-radius: 50%; background: transparent; color: var(--ink-soft); cursor: pointer; }
.login-reveal:hover { background: var(--water-deep); color: var(--ink); }
.login-reveal:focus-visible, .login-submit:focus-visible { outline: 2px solid var(--link); outline-offset: 3px; }

.login-submit {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--s3);
    width: 100%;
    min-height: 56px;
    padding-block: 6px; padding-inline: 24px 6px;
    border: 0;
    border-radius: var(--r-capsule);
    background: var(--sun);
    color: var(--on-color);
    font: inherit;
    font-size: var(--text-lg);
    font-weight: 800;
    cursor: pointer;
    transition: background-color var(--dur-fast) ease;
}
.login-submit:hover { background: var(--sun-deep); }
.login-chip { display: grid; place-items: center; width: 44px; height: 44px; border-radius: 50%; background: var(--on-color); color: var(--sun); transition: transform var(--dur-over) var(--ease-over); }
.login-submit:hover .login-chip, .login-submit:focus-visible .login-chip { transform: translateX(-4px) rotate(-10deg); }
.login-submit:active .login-chip { transform: scale(0.92); }

.login-alert { padding: 12px 16px; border-radius: var(--r-field); font-weight: 600; font-size: var(--text-sm); color: var(--on-color); }
.login-alert.is-error { background: color-mix(in oklab, var(--coral) 45%, var(--paper)); }
.login-alert.is-warning { background: color-mix(in oklab, var(--sun) 50%, var(--paper)); }
.login-alert.is-success { background: color-mix(in oklab, var(--leaf) 50%, var(--paper)); }
.login-alert p { margin: 0; }
.login-progress p { margin: 0 0 var(--s2); font-weight: 650; }
.login-muted { color: var(--ink-soft); font-weight: 500 !important; }
.login-bar { height: 10px; border-radius: var(--r-capsule); background: var(--water-deep); overflow: hidden; }
.login-bar span { display: block; width: 40%; height: 100%; border-radius: inherit; background: var(--land); animation: bar 1.2s ease-in-out infinite; }
@keyframes bar { from { transform: translateX(-100%); } to { transform: translateX(260%); } }

[data-theme="dark"] .login-alert { color: var(--on-color); }

@media (max-width: 860px) {
    .login-stage { grid-template-columns: minmax(0, 1fr); gap: var(--s5); padding: var(--s6) var(--s4); align-content: start; }
    .login-lobe-land { width: 100%; height: 44vh; }
    .login-shop { padding-top: var(--s4); }
    .login-shop-id { margin-bottom: var(--s4); }
    .login-shop-name { font-size: clamp(2.25rem, 11vw, 3.5rem); }
    .login-card { padding: var(--s5); }
    .login-lobe-pond { display: none; }
}

@media (prefers-reduced-motion: reduce) {
    .login-lobe, .login-bar span { animation: none; }
}
.login-footer { position: relative; z-index: 1; width: fit-content; margin: calc(var(--s7) * -1) auto var(--s4); padding: 4px 14px; border-radius: var(--r-capsule); background: var(--paper); font-size: var(--text-xs); font-weight: 600; color: var(--ink-soft); }