.auth-wrapper {
    min-height: calc(100vh - 160px);
    padding: 2rem 1.5rem 4rem;
    display: flex;
    justify-content: center;
}

.auth-card {
    --auth-card-bg: #ffffff;
    --auth-card-heading: #0f172a;
    --auth-card-body: #516189;
    --auth-card-label: #111827;
    --auth-card-input-bg: #ffffff;
    --auth-card-input-color: #0f172a;
    --auth-card-input-border: #d0d7ea;
    --auth-card-input-focus: #2563eb;
    --auth-card-input-placeholder: #9ca3af;
    --auth-card-status-success-bg: #f0fdf4;
    --auth-card-status-success-border: #86efac;
    --auth-card-status-success-text: #15803d;
    --auth-card-status-error-bg: #fff1f2;
    --auth-card-status-error-border: #fecdd3;
    --auth-card-status-error-text: #be123c;
    --auth-card-eyebrow: #7c91b8;
    --auth-card-input-focus-halo: rgba(37, 99, 235, 0.18);
    --auth-card-button-gradient: linear-gradient(135deg, #2563eb, #7c3aed);
    --auth-card-button-shadow: rgba(37, 99, 235, 0.7);

    width: min(560px, 100%);
    margin-top: 2rem;
    padding: 2.5rem;
    border-radius: 1.5rem;
    background: var(--auth-card-bg);
    box-shadow: 0 30px 60px -40px rgba(15, 23, 42, 0.45);
    display: flex;
    flex-direction: column;
    gap: 1.75rem;
    color: var(--auth-card-heading);
}

.auth-card--dark {
    width: min(520px, 100%);
    padding: 2rem;
    border-radius: 1rem;
    background: rgba(15, 23, 42, 0.95);
    box-shadow: 0 25px 50px -12px rgba(15, 23, 42, 0.5);
    color: #e2e8f0;

    --auth-card-bg: rgba(15, 23, 42, 0.95);
    --auth-card-heading: #e2e8f0;
    --auth-card-body: rgba(226, 232, 240, 0.75);
    --auth-card-label: rgba(226, 232, 240, 0.95);
    --auth-card-input-bg: rgba(15, 23, 42, 0.6);
    --auth-card-input-color: #f8fafc;
    --auth-card-input-border: rgba(255, 255, 255, 0.2);
    --auth-card-input-focus: rgb(129, 140, 248);
    --auth-card-input-placeholder: rgba(226, 232, 240, 0.55);
    --auth-card-status-success-bg: rgba(16, 185, 129, 0.15);
    --auth-card-status-success-border: rgba(16, 185, 129, 0.35);
    --auth-card-status-success-text: #10b981;
    --auth-card-status-error-bg: rgba(248, 113, 113, 0.15);
    --auth-card-status-error-border: rgba(248, 113, 113, 0.35);
    --auth-card-status-error-text: #f87171;
    --auth-card-eyebrow: rgb(96, 165, 250);
    --auth-card-input-focus-halo: rgba(129, 140, 248, 0.35);
    --auth-card-button-gradient: linear-gradient(120deg, rgb(99, 102, 241), rgb(59, 130, 246));
    --auth-card-button-shadow: rgba(99, 102, 241, 0.45);
}

.auth-card header {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.auth-card .eyebrow {
    letter-spacing: 0.08em;
    font-size: 0.85rem;
    text-transform: uppercase;
    font-weight: 600;
    color: var(--auth-card-eyebrow);
}

.auth-card h1 {
    font-size: clamp(1.9rem, 2.8vw, 2.5rem);
    font-weight: 700;
    margin: 0;
    color: var(--auth-card-heading);
}

.auth-card header p {
    margin: 0;
    color: var(--auth-card-body);
}

.auth-card .status {
    border-radius: 0.85rem;
    padding: 1rem 1.2rem;
    font-weight: 500;
    border: 1px solid transparent;
}

.auth-card .status.success {
    background: var(--auth-card-status-success-bg);
    color: var(--auth-card-status-success-text);
    border-color: var(--auth-card-status-success-border);
}

.auth-card .status.error {
    background: var(--auth-card-status-error-bg);
    color: var(--auth-card-status-error-text);
    border-color: var(--auth-card-status-error-border);
}

.auth-card form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.auth-card .form-field {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.auth-card label {
    font-weight: 600;
    color: var(--auth-card-label);
}

.auth-card input[type="text"],
.auth-card input[type="password"],
.auth-card input[type="email"] {
    border: 1px solid var(--auth-card-input-border);
    border-radius: 0.85rem;
    padding: 0.8rem 1rem;
    font-size: 1rem;
    background: var(--auth-card-input-bg);
    color: var(--auth-card-input-color);
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.auth-card input[type="text"]::placeholder,
.auth-card input[type="password"]::placeholder,
.auth-card input[type="email"]::placeholder {
    color: var(--auth-card-input-placeholder);
}

.auth-card input[type="text"]:focus,
.auth-card input[type="password"]:focus,
.auth-card input[type="email"]:focus {
    outline: none;
    border-color: var(--auth-card-input-focus);
    box-shadow: 0 0 0 4px var(--auth-card-input-focus-halo);
}

.auth-card .validation-message {
    color: #dc2626;
    font-size: 0.9rem;
}

.auth-card--dark .validation-message {
    color: #f87171;
}

.auth-card button.primary {
    border: none;
    border-radius: 999px;
    padding: 0.85rem 1.75rem;
    font-weight: 600;
    color: white;
    background: var(--auth-card-button-gradient);
    cursor: pointer;
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.auth-card button.primary:disabled {
    opacity: 0.65;
    cursor: not-allowed;
}

.auth-card button.primary:not(:disabled):hover {
    transform: translateY(-1px);
    box-shadow: 0 15px 35px -20px var(--auth-card-button-shadow);
}

@media (max-width: 640px) {
    .auth-card {
        padding: 1.75rem;
    }

    .auth-card--dark {
        padding: 1.5rem;
    }
}