body {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 24px;
}

.auth-wrapper {
    width: 100%;
    max-width: 420px;
    z-index: 1;
}

.auth-card {
    background: rgba(17, 17, 17, 0.85);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 40px;
    box-shadow: 0 30px 60px rgba(0,0,0,0.6);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

/* STYLE DU SÉLECTEUR D'ONGLETS COULISSANT */
.tab-switch {
    display: flex;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    padding: 4px;
    border-radius: 99px;
    margin-bottom: 32px;
}

.tab-btn {
    flex: 1;
    background: none;
    border: none;
    color: var(--vercel-gray-300);
    padding: 10px 16px;
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    border-radius: 99px;
    transition: all 0.2s ease;
}

.tab-btn.active {
    background: rgba(255, 255, 255, 0.08);
    color: var(--vercel-white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.auth-header {
    text-align: center;
    margin-bottom: 32px;
}

.auth-header h2 {
    font-size: 1.8rem;
    font-weight: 700;
    letter-spacing: -1px;
    margin-bottom: 8px;
}

.auth-header p {
    color: var(--vercel-gray-300);
    font-size: 0.85rem;
}

.form-row-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.input-box {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: 20px;
}

.input-box label {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--vercel-gray-300);
}

.input-box input, .input-box select {
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 12px;
    color: var(--vercel-white);
    font-size: 0.9rem;
    outline: none;
    transition: border-color 0.15s;
    width: 100%;
}

.input-box input:focus, .input-box select:focus {
    border-color: var(--vercel-white);
}

.avatar-selector {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
    margin-top: 6px;
}

.avatar-option {
    cursor: pointer;
    text-align: center;
}

.avatar-option input {
    display: none;
}

.avatar-option span {
    display: block;
    font-size: 1.6rem;
    padding: 8px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    transition: all 0.15s ease;
}

.avatar-option input:checked + span {
    border-color: var(--vercel-white);
    background: rgba(255, 255, 255, 0.06);
}

.error-log {
    background: rgba(255, 0, 127, 0.06);
    border: 1px solid rgba(255, 0, 127, 0.2);
    color: #ff007f;
    padding: 12px;
    border-radius: 6px;
    font-size: 0.8rem;
    margin-bottom: 20px;
    display: none;
}

.consent-box {
    margin-bottom: 16px;
}

.consent-label {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    font-size: 0.78rem;
    line-height: 1.5;
    color: var(--vercel-gray-400, #999);
    cursor: pointer;
}

.consent-label input[type="checkbox"] {
    margin-top: 2px;
    width: 15px;
    height: 15px;
    flex-shrink: 0;
    accent-color: #ff007f;
    cursor: pointer;
}

.consent-label input[type="checkbox"]:disabled {
    cursor: not-allowed;
    opacity: 0.4;
}

.consent-label a {
    color: var(--vercel-white);
    text-decoration: underline;
    text-underline-offset: 2px;
}

.consent-label.unlocked {
    color: var(--vercel-gray-400, #999);
}

.consent-hint {
    font-size: 0.72rem;
    color: #ff007f;
    margin-top: 4px;
    display: block;
}

.btn-submit {
    width: 100%;
    padding: 12px;
    font-weight: 600;
    margin-bottom: 16px;
}

.divider {
    display: flex;
    align-items: center;
    text-align: center;
    color: var(--vercel-gray-200);
    font-size: 0.75rem;
    margin: 24px 0;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.divider::before, .divider::after {
    content: '';
    flex: 1;
    border-bottom: 1px solid var(--border-color);
}

.divider:not(:empty)::before { margin-right: .5em; }
.divider:not(:empty)::after { margin-left: .5em; }

.btn-google {
    width: 100%;
    background: #ffffff;
    color: #1f1f1f;
    border: 1px solid transparent;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 13px;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: box-shadow 0.15s, transform 0.1s;
    box-shadow: 0 1px 2px rgba(0,0,0,0.15);
}

.btn-google:hover {
    box-shadow: 0 2px 8px rgba(0,0,0,0.25);
}

.btn-google:active {
    transform: scale(0.99);
}

.google-icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

/* ==================== Easter egg Minecraft (casser le bloc) ==================== */

.mc-achievement-toast {
    position: fixed;
    bottom: 24px;
    left: -320px;
    width: 300px;
    display: flex;
    align-items: center;
    gap: 12px;
    background: linear-gradient(135deg, #3a3a3a, #1c1c1c);
    border: 2px solid #555;
    box-shadow: 0 0 0 2px #000, 4px 4px 0 rgba(0,0,0,0.4);
    padding: 10px 14px;
    z-index: 99999;
    transition: left 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    font-family: 'Inter', sans-serif;
}

.mc-achievement-toast.visible {
    left: 24px;
}

.mc-achievement-icon {
    font-size: 1.8rem;
    background: #FFC800;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid #000;
    flex-shrink: 0;
}

.mc-achievement-title {
    color: #FFFF55;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.mc-achievement-subtitle {
    color: #fff;
    font-size: 0.9rem;
    font-weight: 600;
}

.login-block-crack {
    cursor: pointer;
    transition: opacity 0.1s;
    user-select: none;
}

.login-block-crack:active {
    opacity: 0.6;
}

@keyframes mcScreenShake {
    0%, 100% { transform: translate(0, 0); }
    10% { transform: translate(-6px, 4px); }
    20% { transform: translate(6px, -4px); }
    30% { transform: translate(-6px, -4px); }
    40% { transform: translate(6px, 4px); }
    50% { transform: translate(-4px, 2px); }
    60% { transform: translate(4px, -2px); }
    70% { transform: translate(-3px, 3px); }
    80% { transform: translate(3px, -3px); }
    90% { transform: translate(-2px, 1px); }
}

.screen-shake {
    animation: mcScreenShake 0.5s;
}