*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    --ink: #0a0a0a;
    --ink-soft: #3d3d3d;
    --ink-muted: #8a8a8a;
    --rule: #e4e4e4;
    --surface: #f8f7f5;
    --white: #ffffff;
    --danger: #b91c1c;
    --serif: 'DM Serif Display', Georgia, serif;
    --sans: 'DM Sans', system-ui, sans-serif;
    --ease: cubic-bezier(.25, .46, .45, .94);
}

html,
body {
    min-height: 100%;
    font-family: var(--sans);
    background: var(--white);
    color: var(--ink);
}

body {
    margin: 0;
}

.page {
    display: grid;
    grid-template-columns: 1fr 1fr;
    min-height: 100vh;
}

.panel-left {
    position: relative;
    background: var(--ink);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 3rem;
    overflow: hidden;
}

.panel-left::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, .04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, .04) 1px, transparent 1px);
    background-size: 48px 48px;
    pointer-events: none;
}

.panel-left::after {
    content: 'M';
    position: absolute;
    bottom: -2rem;
    right: -1rem;
    font-family: var(--serif);
    font-style: italic;
    font-size: 28vw;
    line-height: 1;
    color: rgba(255, 255, 255, .04);
    pointer-events: none;
    user-select: none;
}

.panel-brand,
.panel-copy,
.panel-footer {
    position: relative;
    z-index: 1;
    animation: fade-up .6s var(--ease) both;
}

.panel-brand {
    display: inline-flex;
    align-items: center;
    gap: .7rem;
    text-decoration: none;
    width: fit-content;
}

.panel-brand-icon {
    width: 36px;
    height: 36px;
    background: var(--white);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.panel-brand-icon img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.panel-brand-name {
    font-family: var(--serif);
    font-size: 1.3rem;
    color: var(--white);
    letter-spacing: -.01em;
}

.panel-copy {
    animation-delay: .15s;
}

.panel-footer {
    animation-delay: .25s;
}

.panel-eyebrow,
.form-eyebrow {
    font-size: .65rem;
    letter-spacing: .22em;
    text-transform: uppercase;
    display: flex;
    align-items: center;
    gap: .55rem;
}

.panel-eyebrow {
    color: rgba(255, 255, 255, .4);
    margin-bottom: .9rem;
}

.panel-eyebrow::before,
.form-eyebrow::before {
    content: '';
    display: inline-block;
    width: 1.5rem;
    height: 1px;
}

.panel-eyebrow::before {
    background: rgba(255, 255, 255, .25);
}

.form-eyebrow::before {
    background: var(--rule);
}

.panel-headline {
    font-family: var(--serif);
    font-size: clamp(2.4rem, 4vw, 3.4rem);
    line-height: 1.05;
    letter-spacing: -.03em;
    color: var(--white);
    margin-bottom: 1.2rem;
}

.panel-headline em,
.form-title em {
    font-style: italic;
}

.panel-headline em {
    color: rgba(255, 255, 255, .55);
}

.panel-sub {
    font-size: .85rem;
    color: rgba(255, 255, 255, .45);
    line-height: 1.7;
    max-width: 320px;
}

.panel-footer {
    font-size: .7rem;
    letter-spacing: .08em;
    color: rgba(255, 255, 255, .2);
}

.panel-right {
    background: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 3rem 2rem;
}

.form-wrap {
    width: 100%;
    max-width: 380px;
    animation: fade-up .55s .1s var(--ease) both;
}

.form-header {
    margin-bottom: 2.5rem;
}

.form-eyebrow {
    color: var(--ink-muted);
    margin-bottom: .7rem;
}

.form-title {
    font-family: var(--serif);
    font-size: 2rem;
    letter-spacing: -.03em;
    color: var(--ink);
    line-height: 1.1;
}

.form-title em {
    color: var(--ink-soft);
}

.error-box {
    background: rgba(185, 28, 28, .06);
    border: 1px solid rgba(185, 28, 28, .2);
    border-radius: 8px;
    padding: .8rem 1rem;
    margin-bottom: 1.5rem;
}

.error-item {
    font-size: .8rem;
    color: var(--danger);
    display: flex;
    align-items: flex-start;
    gap: .4rem;
    line-height: 1.5;
}

.error-item+.error-item {
    margin-top: .3rem;
}

.error-item::before {
    content: '—';
    flex-shrink: 0;
    opacity: .5;
}

.field {
    margin-bottom: 1.1rem;
}

.field-label {
    display: block;
    font-size: .7rem;
    letter-spacing: .12em;
    text-transform: uppercase;
    color: var(--ink-muted);
    margin-bottom: .5rem;
}

.field-input-wrap {
    position: relative;
}

.field-icon,
.pw-toggle {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
}

.field-icon {
    left: 1rem;
    color: var(--ink-muted);
    pointer-events: none;
    transition: color .2s;
}

.field-input {
    width: 100%;
    padding: .85rem 1rem .85rem 2.8rem;
    border: 1px solid var(--rule);
    border-radius: 8px;
    font-family: var(--sans);
    font-size: .9rem;
    color: var(--ink);
    background: var(--surface);
    outline: none;
    transition: border-color .2s var(--ease), background .2s var(--ease), box-shadow .2s var(--ease);
}

.field-input::placeholder {
    color: #aaaaaa;
}

.field-input:focus {
    border-color: var(--ink);
    background: var(--white);
    box-shadow: 0 0 0 3px rgba(10, 10, 10, .06);
}

.field-input:focus+.field-icon,
.field-input-wrap.is-focused .field-icon {
    color: var(--ink);
}

.password-input {
    padding-right: 2.8rem;
}

.pw-toggle {
    right: .9rem;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--ink-muted);
    padding: .2rem;
    display: flex;
    align-items: center;
    transition: color .18s;
}

.pw-toggle:hover {
    color: var(--ink);
}

.btn-submit {
    width: 100%;
    margin-top: 1.8rem;
    padding: .9rem;
    background: var(--ink);
    color: var(--white);
    border: none;
    border-radius: 8px;
    font-family: var(--sans);
    font-size: .8rem;
    font-weight: 500;
    letter-spacing: .12em;
    text-transform: uppercase;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    transition: transform .18s var(--ease), box-shadow .18s var(--ease);
}

.btn-submit::after {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(255, 255, 255, 0);
    transition: background .2s;
}

.btn-submit:hover {
    transform: translateY(-1px);
    box-shadow: 0 8px 24px rgba(10, 10, 10, .18);
}

.btn-submit:hover::after {
    background: rgba(255, 255, 255, .07);
}

.btn-submit:active {
    transform: translateY(0);
    box-shadow: none;
}

.form-divider {
    display: flex;
    align-items: center;
    gap: .75rem;
    margin: 1.8rem 0 1.2rem;
    color: var(--ink-muted);
    font-size: .7rem;
    letter-spacing: .1em;
    text-transform: uppercase;
}

.form-divider::before,
.form-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--rule);
}

.catalog-link {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: .5rem;
    padding: .75rem;
    border: 1px solid var(--rule);
    border-radius: 8px;
    font-size: .8rem;
    font-family: var(--sans);
    color: var(--ink-muted);
    text-decoration: none;
    transition: all .18s var(--ease);
}

.catalog-link:hover {
    border-color: var(--ink);
    color: var(--ink);
    background: var(--surface);
}

@keyframes fade-up {
    from {
        opacity: 0;
        transform: translateY(16px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 720px) {
    .page {
        grid-template-columns: 1fr;
    }

    .panel-left {
        min-height: 220px;
        padding: 2rem;
    }

    .panel-left::after {
        font-size: 52vw;
    }

    .panel-copy {
        padding-top: 1rem;
    }

    .panel-headline {
        font-size: 2.2rem;
    }

    .panel-footer {
        display: none;
    }

    .panel-right {
        padding: 2.5rem 1.5rem;
    }
}