:root {
    color-scheme: dark;
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background: #080b12;
    color: #f6f7fb;
}

* {
    box-sizing: border-box;
}

body {
    min-width: 320px;
    min-height: 100vh;
    margin: 0;
    background:
        radial-gradient(circle at 15% 10%, rgba(55, 119, 255, 0.18), transparent 35rem),
        radial-gradient(circle at 90% 90%, rgba(64, 214, 163, 0.12), transparent 30rem),
        #080b12;
}

.page-shell {
    display: grid;
    min-height: 100vh;
    place-items: center;
    padding: 2rem 1.25rem;
}

.login-card {
    width: min(100%, 26rem);
    padding: 2.5rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 1.25rem;
    background: rgba(17, 22, 34, 0.92);
    box-shadow: 0 2rem 5rem rgba(0, 0, 0, 0.42);
    backdrop-filter: blur(1rem);
}

.eyebrow {
    margin: 0 0 0.45rem;
    color: #7fa0ff;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.13em;
    text-transform: uppercase;
}

h1 {
    margin: 0;
    font-size: clamp(2rem, 8vw, 2.6rem);
    letter-spacing: -0.04em;
}

.intro {
    margin: 0.65rem 0 2rem;
    color: #aeb7c9;
    line-height: 1.5;
}

form {
    display: grid;
    gap: 0.7rem;
}

label {
    margin-top: 0.45rem;
    color: #d9deea;
    font-size: 0.86rem;
    font-weight: 650;
}

input[type="email"],
input[type="password"] {
    width: 100%;
    min-height: 3rem;
    padding: 0.8rem 0.95rem;
    border: 1px solid #333d51;
    border-radius: 0.7rem;
    outline: none;
    background: #0c111c;
    color: #f6f7fb;
    font: inherit;
    transition: border-color 120ms ease, box-shadow 120ms ease;
}

input[type="email"]:focus,
input[type="password"]:focus {
    border-color: #6f91ff;
    box-shadow: 0 0 0 3px rgba(79, 124, 255, 0.2);
}

.keep-signed-in {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    margin: 0.55rem 0 0.35rem;
    color: #aeb7c9;
    cursor: pointer;
    font-weight: 500;
}

.keep-signed-in input {
    width: 1rem;
    height: 1rem;
    margin: 0;
    accent-color: #668bff;
}

.status {
    margin: 0.25rem 0;
    padding: 0.75rem 0.85rem;
    border: 1px solid rgba(255, 109, 109, 0.38);
    border-radius: 0.65rem;
    background: rgba(132, 37, 48, 0.22);
    color: #ffb8bf;
    font-size: 0.86rem;
    line-height: 1.4;
}

.status:not(.error) {
    border-color: rgba(111, 145, 255, 0.38);
    background: rgba(56, 83, 157, 0.2);
    color: #bdcaff;
}

button {
    display: inline-grid;
    min-height: 3.15rem;
    margin-top: 0.35rem;
    place-items: center;
    border: 0;
    border-radius: 0.75rem;
    background: linear-gradient(135deg, #668bff, #4f7cff);
    box-shadow: 0 0.8rem 1.8rem rgba(43, 79, 191, 0.3);
    color: white;
    cursor: pointer;
    font: inherit;
    font-weight: 750;
    transition: filter 120ms ease, transform 120ms ease;
}

button:hover:not(:disabled) {
    filter: brightness(1.08);
    transform: translateY(-1px);
}

button:focus-visible {
    outline: 3px solid rgba(127, 160, 255, 0.55);
    outline-offset: 3px;
}

button:disabled {
    cursor: wait;
    opacity: 0.72;
}

.spinner {
    display: none;
    width: 1.15rem;
    height: 1.15rem;
    border: 2px solid rgba(255, 255, 255, 0.4);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 700ms linear infinite;
}

button[aria-busy="true"] .button-label {
    display: none;
}

button[aria-busy="true"] .spinner {
    display: block;
}

noscript {
    display: block;
    margin-top: 1rem;
    color: #ffb8bf;
    font-size: 0.85rem;
}

[hidden] {
    display: none !important;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

@media (max-width: 30rem) {
    .login-card {
        padding: 2rem 1.4rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        transition: none !important;
    }

    .spinner {
        animation-duration: 1.4s;
    }
}