:root {
    --shell-ink: #24140f;
    --shell-muted: #80665d;
    --shell-bg: #fff7e8;
    --shell-card: rgba(255, 255, 255, .74);
    --shell-red: #b5334b;
    --shell-orange: #ff7a59;
}

* {
    box-sizing: border-box;
}

body {
    min-height: 100vh;
    margin: 0;
    background:
        radial-gradient(circle at top left, rgba(255, 122, 89, .22), transparent 34rem),
        radial-gradient(circle at bottom right, rgba(58, 143, 117, .18), transparent 30rem),
        var(--shell-bg);
    color: var(--shell-ink);
    font-family: 'Trebuchet MS', Verdana, sans-serif;
}

.app-shell-header {
    top: 0;
    z-index: 20;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    max-width: 1220px;
    margin: 0 auto;
    padding: 18px 24px;
    backdrop-filter: blur(16px);
}

.brand-mark {
    display: inline-flex;
    align-items: center;
    gap: 20px;
    color: var(--shell-ink);
    font-size: 1.05rem;
    font-weight: 900;
    letter-spacing: -.03em;
    text-decoration: none;
}

.brand-mark::before {
    content: '';
    width: 18px;
    height: 18px;
    border-radius: 999px;
    background: linear-gradient(135deg, var(--shell-red), var(--shell-orange));
    box-shadow: 11px 5px 0 #f5c34b;
}

.logout-form {
    margin: 0;
}

.shell-link {
    border: 0;
    border-radius: 999px;
    padding: 10px 15px;
    background: rgba(255, 255, 255, .7);
    color: var(--shell-red);
    font-weight: 800;
}

.app-shell-main {
    max-width: 1220px;
    margin: 0 auto;
    padding: 10px 24px 48px;
}

.login-page {
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) 430px;
    gap: 28px;
    align-items: stretch;
    min-height: calc(100vh - 132px);
}

.login-hero,
.login-card {
    border: 1px solid rgba(36, 20, 15, .1);
    border-radius: 34px;
    box-shadow: 0 26px 70px rgba(144, 61, 42, .18);
}

.login-hero {
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: end;
    min-height: 560px;
    padding: 46px;
    overflow: hidden;
    background: radial-gradient(circle at 24% 16%, rgba(255,255,255,.88), transparent 22%), linear-gradient(135deg, #ffe8b1, #ff9d72 52%, #d94458);
}

.login-hero::before {
    content: '';
    position: absolute;
    top: 38px;
    right: 42px;
    width: min(36vw, 340px);
    aspect-ratio: 1;
    border-radius: 999px;
    background:
        radial-gradient(circle at 34% 28%, rgba(255, 255, 255, .86), transparent 30%),
        linear-gradient(135deg, rgba(255, 255, 255, .42), rgba(255, 255, 255, .14));
    box-shadow:
        inset 0 0 0 1px rgba(255, 255, 255, .48),
        0 24px 80px rgba(130, 43, 53, .28);
}

.login-hero::after {
    content: '';
    position: absolute;
    top: 118px;
    right: 118px;
    width: 140px;
    height: 140px;
    border-radius: 999px;
    background: rgba(255, 255, 255, .18);
    filter: blur(2px);
}

.login-hero-art {
    position: absolute;
    top: 18px;
    right: 16px;
    z-index: 1;
    width: min(40vw, 380px);
    transform: rotate(8deg);
    filter: drop-shadow(0 28px 38px rgba(94, 38, 28, .32));
    animation: heroIceFloat 5.5s ease-in-out infinite;
}

.login-hero-art img {
    display: block;
    width: 100%;
    height: auto;
}

.login-hero-copy {
    position: relative;
    z-index: 2;
    max-width: 760px;
}

.login-hero span {
    margin-bottom: 14px;
    font-size: .78rem;
    font-weight: 900;
    letter-spacing: .14em;
    text-transform: uppercase;
}

.login-hero h1 {
    max-width: 760px;
    margin: 0;
    font-family: Georgia, 'Times New Roman', serif;
    font-size: clamp(2.8rem, 7vw, 6.6rem);
    line-height: .9;
    letter-spacing: -.08em;
}

.login-hero p {
    max-width: 560px;
    margin: 22px 0 0;
    color: rgba(36, 20, 15, .78);
    font-size: 1.14rem;
}

@keyframes heroIceFloat {
    0%,
    100% {
        transform: rotate(8deg) translateY(0);
    }

    50% {
        transform: rotate(5deg) translateY(-12px);
    }
}

.login-card {
    align-self: center;
    padding: 32px;
    background: var(--shell-card);
    backdrop-filter: blur(18px);
}

.login-card h2 {
    margin: 0 0 6px;
    font-size: 2rem;
    letter-spacing: -.05em;
}

.invite-login-card {
    align-self: center;
}

.auth-grid {
    display: grid;
    gap: 24px;
}

.auth-section {
    min-width: 0;
}

.register-section {
    margin-top: 6px;
    padding-top: 24px;
    border-top: 1px solid rgba(36, 20, 15, .12);
}

.invite-banner {
    display: grid;
    gap: 4px;
    margin-bottom: 24px;
    padding: 14px 16px;
    border-radius: 18px;
    background: rgba(255, 248, 233, .88);
}

.invite-banner span {
    color: var(--shell-muted);
    font-size: .78rem;
    font-weight: 900;
    letter-spacing: .12em;
    text-transform: uppercase;
}

.invite-banner strong {
    color: var(--shell-ink);
    font-size: 1.1rem;
}

.login-hint {
    margin: 0 0 22px;
    color: var(--shell-muted);
}

.fancy-input {
    border: 1px solid rgba(36, 20, 15, .14);
    border-radius: 16px;
    padding: 13px 15px;
    background: rgba(255, 255, 255, .9);
}

.fancy-input:focus {
    border-color: var(--shell-orange);
    box-shadow: 0 0 0 4px rgba(255, 122, 89, .16);
}

.login-button {
    width: 100%;
    margin-top: 6px;
    border: 0;
    border-radius: 18px;
    padding: 15px 18px;
    background: linear-gradient(135deg, var(--shell-red), var(--shell-orange));
    color: #fff;
    font-weight: 900;
    box-shadow: 0 14px 28px rgba(181, 51, 75, .25);
}

.login-button:hover {
    background: linear-gradient(135deg, #98283d, #f25f42);
    box-shadow: 0 18px 34px rgba(181, 51, 75, .32);
}

.register-button {
    background: linear-gradient(135deg, #3a8f75, #ff7a59);
}

.register-button:hover {
    background: linear-gradient(135deg, #2f7862, #f25f42);
}

.credential-list {
    display: grid;
    gap: 5px;
    margin-top: 22px;
    padding: 16px;
    border-radius: 18px;
    background: rgba(255, 248, 233, .86);
    color: var(--shell-muted);
}

.credential-list strong {
    color: var(--shell-ink);
}

.form-group,
.mb-3 {
    margin-bottom: 1rem;
}

@media (max-width: 900px) {
    .login-page {
        grid-template-columns: 1fr;
    }

    .login-hero {
        min-height: 390px;
        padding-top: 210px;
    }

    .login-hero::before {
        top: 22px;
        right: 26px;
        width: 250px;
    }

    .login-hero::after {
        top: 86px;
        right: 90px;
        width: 98px;
        height: 98px;
    }

    .login-hero-art {
        top: 4px;
        right: 4px;
        width: 280px;
    }
}

@media (max-width: 560px) {
    .app-shell-header,
    .app-shell-main {
        padding-left: 16px;
        padding-right: 16px;
    }

    .login-hero,
    .login-card {
        padding: 24px;
        border-radius: 26px;
    }

    .login-hero {
        min-height: 500px;
        padding-top: 245px;
    }

    .login-hero::before {
        left: 50%;
        right: auto;
        width: 245px;
        transform: translateX(-50%);
    }

    .login-hero::after {
        left: 50%;
        right: auto;
        transform: translateX(-50%);
    }

    .login-hero-art {
        left: 50%;
        right: auto;
        width: 275px;
        transform: translateX(-50%) rotate(8deg);
    }

    .login-hero h1 {
        font-size: clamp(2.6rem, 14vw, 4.2rem);
    }

    @keyframes heroIceFloat {
        0%,
        100% {
            transform: translateX(-50%) rotate(8deg) translateY(0);
        }

        50% {
            transform: translateX(-50%) rotate(5deg) translateY(-10px);
        }
    }

    .shell-link {
        max-width: 170px;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }
}