:root {
    --au-accent: var(--fe-color-primary, #e21b33);
    --au-panel-bg: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #0f172a 100%);
    --au-card-bg: var(--fe-color-surface, #fff);
    --au-card-border: var(--fe-color-border, #e2e8f0);
    --au-card-shadow: 0 8px 32px rgba(0,0,0,0.08);
    --au-input-bg: var(--fe-color-bg, #fff);
    --au-input-border: var(--fe-color-border, #e2e8f0);
    --au-input-focus: var(--fe-color-primary, #e21b33);
    --au-radius: 14px;
    --au-transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="dark"] {
    --au-card-shadow: 0 8px 32px rgba(0,0,0,0.3);
    --au-panel-bg: linear-gradient(135deg, #0b1120 0%, #1a1a2e 50%, #0b1120 100%);
}

.au-page {
    display: grid;
    grid-template-columns: 1fr 1fr;
    min-height: calc(100vh - 70px);
    margin-top: calc(-1 
* var(--fe-spacing-lg, 1.5rem));
    
    width: 100vw;
    margin-left: 50%;
    transform: translateX(-50%);
}

.au-panel {
    position: relative;
    background: var(--au-panel-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 3rem;
    overflow: hidden;
}

.au-panel::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 20% 30%, rgba(226, 27, 51, 0.12) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(59, 130, 246, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 50% 50%, rgba(139, 92, 246, 0.05) 0%, transparent 60%);
    pointer-events: none;
}

.au-panel::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
    background-size: 40px 40px;
    pointer-events: none;
}

.au-panel__content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 360px;
    color: #e2e8f0;
}

.au-panel__icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 20px;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.08);
    color: var(--au-accent);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.au-panel__icon svg {
    width: 36px;
    height: 36px;
}

.au-panel__title {
    font-size: 1.625rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    margin: 0 0 0.75rem;
    color: #f1f5f9;
    line-height: 1.25;
}

.au-panel__desc {
    font-size: 0.9rem;
    line-height: 1.7;
    color: #94a3b8;
    margin: 0;
}

.au-panel__shape {
    position: absolute;
    border-radius: 50%;
    opacity: 0.08;
    pointer-events: none;
}

.au-panel__shape--1 {
    width: 200px;
    height: 200px;
    background: var(--au-accent);
    top: -60px;
    right: -40px;
    animation: au-float 8s ease-in-out infinite;
}

.au-panel__shape--2 {
    width: 120px;
    height: 120px;
    background: #3b82f6;
    bottom: 10%;
    left: -30px;
    animation: au-float 6s ease-in-out infinite reverse;
}

.au-panel__shape--3 {
    width: 80px;
    height: 80px;
    background: #8b5cf6;
    top: 40%;
    right: 15%;
    animation: au-float 10s ease-in-out infinite 2s;
}

@keyframes au-float {
    0%, 100% { transform: translateY(0) scale(1); }
    50%      { transform: translateY(-12px) scale(1.05); }
}

@media (prefers-reduced-motion: reduce) {
    .au-panel__shape { animation: none; }
}

.au-form-side {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2.5rem;
    background: var(--fe-color-bg, #f8fafc);
}

[data-theme="dark"] .au-form-side {
    background: var(--fe-color-bg, #0f172a);
}

.au-card {
    width: 100%;
    max-width: 420px;
    background: var(--au-card-bg);
    border: 1px solid var(--au-card-border);
    border-radius: var(--au-radius);
    box-shadow: var(--au-card-shadow);
    padding: 2.5rem;
    animation: au-cardIn 0.4s ease both;
}

@keyframes au-cardIn {
    from { opacity: 0; transform: translateY(10px); }
    to   { opacity: 1; transform: translateY(0); }
}

@media (prefers-reduced-motion: reduce) {
    .au-card { animation: none; }
}

.au-card__header {
    text-align: center;
    margin-bottom: 2rem;
}

.au-card__icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 52px;
    height: 52px;
    margin: 0 auto 1rem;
    border-radius: 14px;
    background: color-mix(in srgb, var(--au-accent) 8%, var(--au-card-bg));
    color: var(--au-accent);
}

.au-card__icon svg {
    width: 24px;
    height: 24px;
}

.au-card__title {
    margin: 0 0 0.375rem;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--fe-color-text);
    letter-spacing: -0.02em;
}

.au-card__subtitle {
    margin: 0;
    font-size: 0.875rem;
    color: var(--fe-color-text-muted, #64748b);
    line-height: 1.5;
}

.au-error {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    margin-bottom: 1.25rem;
    padding: 0.75rem 1rem;
    background: color-mix(in srgb, #ef4444 8%, var(--au-card-bg));
    border: 1px solid color-mix(in srgb, #ef4444 20%, var(--au-card-border));
    border-radius: 10px;
    font-size: 0.8125rem;
    color: #dc2626;
    line-height: 1.4;
}

[data-theme="dark"] .au-error {
    color: #fca5a5;
}

.au-error svg {
    flex-shrink: 0;
    margin-top: 1px;
}

.au-form {
    display: flex;
    flex-direction: column;
    gap: 1.125rem;
}

.au-field {
    display: flex;
    flex-direction: column;
    gap: 0.375rem;
}

.au-label {
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--fe-color-text);
}

.au-input {
    width: 100%;
    padding: 0.7rem 0.875rem;
    font-size: 0.9rem;
    font-family: inherit;
    color: var(--fe-color-text);
    background: var(--au-input-bg);
    border: 1.5px solid var(--au-input-border);
    border-radius: 10px;
    outline: none;
    transition: border-color var(--au-transition), box-shadow var(--au-transition);
}

.au-input::placeholder {
    color: var(--fe-color-text-muted, #94a3b8);
}

.au-input:focus {
    border-color: var(--au-input-focus);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--au-input-focus) 12%, transparent);
}

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

.au-input-wrap .au-input {
    padding-right: 2.75rem;
}

.au-toggle-pw {
    position: absolute;
    right: 0.625rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    padding: 4px;
    color: var(--fe-color-text-muted, #94a3b8);
    cursor: pointer;
    border-radius: 6px;
    transition: color 0.2s;
    display: flex;
    align-items: center;
}

.au-toggle-pw:hover {
    color: var(--fe-color-text);
}

.au-field-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.au-forgot {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--au-accent);
    text-decoration: none;
    transition: opacity 0.2s;
}

.au-forgot:hover {
    opacity: 0.8;
}

.au-submit {
    width: 100%;
    padding: 0.75rem 1.5rem;
    font-size: 0.9375rem;
    font-weight: 700;
    font-family: inherit;
    color: #fff;
    background: var(--au-accent);
    border: none;
    border-radius: 10px;
    cursor: pointer;
    transition: background var(--au-transition), box-shadow var(--au-transition), transform var(--au-transition);
    margin-top: 0.25rem;
}

.au-submit:hover {
    background: color-mix(in srgb, var(--au-accent) 85%, #000);
    box-shadow: 0 4px 16px color-mix(in srgb, var(--au-accent) 30%, transparent);
    transform: translateY(-1px);
}

.au-submit:active {
    transform: translateY(0);
}

.au-submit:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.au-footer {
    margin-top: 1.75rem;
    padding-top: 1.25rem;
    border-top: 1px solid var(--au-card-border);
    text-align: center;
    font-size: 0.8125rem;
    color: var(--fe-color-text-muted, #64748b);
}

.au-footer a {
    color: var(--au-accent);
    font-weight: 600;
    text-decoration: none;
    transition: opacity 0.2s;
}

.au-footer a:hover {
    opacity: 0.8;
}

.au-notice {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    text-align: center;
    padding: 2rem 1.5rem;
    background: color-mix(in srgb, var(--au-accent) 4%, var(--au-card-bg));
    border: 1px solid color-mix(in srgb, var(--au-accent) 12%, var(--au-card-border));
    border-radius: 12px;
}

.au-notice__icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: color-mix(in srgb, var(--au-accent) 10%, var(--au-card-bg));
    color: var(--au-accent);
}

.au-notice__icon svg {
    width: 28px;
    height: 28px;
}

.au-notice__title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--fe-color-text);
    margin: 0;
}

.au-notice__desc {
    font-size: 0.85rem;
    line-height: 1.6;
    color: var(--fe-color-text-muted, #64748b);
    margin: 0;
    max-width: 320px;
}

.au-notice--error {
    background: color-mix(in srgb, var(--fe-color-danger, #ef4444) 8%, var(--au-card-bg));
    border-color: color-mix(in srgb, var(--fe-color-danger, #ef4444) 20%, var(--au-card-border));
}
.au-notice--error .au-notice__desc {
    color: var(--fe-color-danger, #ef4444);
}

.au-success {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    margin-bottom: 1.25rem;
    padding: 0.75rem 1rem;
    background: color-mix(in srgb, #22c55e 8%, var(--au-card-bg));
    border: 1px solid color-mix(in srgb, #22c55e 20%, var(--au-card-border));
    border-radius: 10px;
    font-size: 0.8125rem;
    color: #16a34a;
    line-height: 1.4;
}

[data-theme="dark"] .au-success {
    color: #86efac;
}

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

    .au-panel {
        display: none;
    }

    .au-form-side {
        padding: 2rem 1.25rem;
        min-height: calc(100vh - 120px);
    }

    .au-card {
        padding: 2rem 1.5rem;
    }
}

@media (max-width: 480px) {
    .au-form-side {
        padding: 1.5rem 1rem;
    }

    .au-card {
        padding: 1.75rem 1.25rem;
        border-radius: 12px;
    }

    .au-card__title {
        font-size: 1.25rem;
    }
}