.modal,
.auth-overlay {
    position: fixed;
    inset: 0;
    z-index: 2000;
    display: block;
}

.modal.hidden {
    display: none;
}

.auth-overlay {
    display: none;
}

.auth-overlay.open {
    display: block;
}

.modal-backdrop,
.auth-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.35);
}

.modal-panel,
.auth-panel {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: min(420px, 92vw);
    background: var(--ui-bg);
    color: var(--text-color);
    border-radius: 16px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.25);
    padding: 18px;
}

.modal-panel {
    top: 12vh;
}

.auth-panel {
    top: -100%;
    transition: top 0.35s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.auth-overlay.open .auth-panel {
    top: 8vh;
}

.modal-header,
.auth-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 10px;
}

.modal-header h3,
.auth-header h3 {
    font-size: 18px;
}

.modal-body {
    padding: 6px 0 12px;
}

#preset-name-input,
#preset-folder-input {
    width: 100%;
    padding: 10px 12px;
    font-size: 14px;
    background: var(--btn-bg);
    color: var(--text-color);
    border: 1px solid var(--slider-track);
    border-radius: 8px;
}

.aspect-ratio-inputs {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
}

#aspect-width-input,
#aspect-height-input {
    width: 80px;
    padding: 10px 12px;
    font-size: 14px;
    background: var(--btn-bg);
    color: var(--text-color);
    border: 1px solid var(--slider-track);
    border-radius: 8px;
    text-align: center;
}

.aspect-ratio-inputs span {
    font-size: 16px;
    font-weight: bold;
    color: var(--text-color);
}

.modal-help-text {
    font-size: 12px;
    opacity: 0.7;
    margin: 0;
}

.custom-aspect-delete {
    position: absolute;
    top: -5px;
    right: -5px;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--accent-color);
    color: #ffffff;
    border: none;
    font-size: 12px;
    font-weight: bold;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
    opacity: 1;
    transition: transform 0.2s, background-color 0.2s;
}

.custom-aspect-btn {
    position: relative;
}

.custom-aspect-delete:hover {
    background: #ff3b30;
    transform: scale(1.1);
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
}

.auth-providers {
    display: grid;
    gap: 10px;
    margin-top: 10px;
}

.provider-btn {
    padding: 12px 14px;
    border-radius: 10px;
    border: 1px solid var(--slider-track);
    background: var(--btn-bg);
    color: var(--btn-text);
    font-weight: 600;
    cursor: pointer;
    text-align: center;
}

.provider-btn:hover {
    background: var(--btn-hover-bg);
}

.provider-btn.outline {
    background: transparent;
}

.auth-note {
    font-size: 12px;
    opacity: 0.7;
    margin-top: 12px;
}

.auth-user.hidden {
    display: none;
}

.auth-user-row {
    display: flex;
    align-items: center;
    gap: 12px;
    margin: 8px 0 14px;
}

.auth-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--slider-track);
}

.auth-user-name {
    font-weight: 700;
}

.auth-user-email {
    font-size: 13px;
    opacity: 0.8;
}