/* 登录/注册弹窗样式 */
.login-modal-overlay {
    position: fixed;
    inset: 0;
    z-index: 1600;
    display: none;
    align-items: center;
    justify-content: center;
    background: radial-gradient(circle at 12% 15%, rgba(255, 204, 188, 0.20) 0%, transparent 42%),
    radial-gradient(circle at 85% 85%, rgba(255, 171, 145, 0.16) 0%, transparent 44%),
    rgba(15, 23, 42, 0.54);
    backdrop-filter: blur(3px);
    padding: 16px;
    overflow: hidden;
}

.login-modal-overlay.is-open {
    display: flex;
}

.login-modal-card {
    width: 100%;
    max-width: 492px;
    max-height: min(90vh, 760px);
    overflow-y: auto;
    overflow-x: hidden;
    background: linear-gradient(180deg, #fffdfa 0%, #fff8f3 100%);
    border: 1px solid #ffe0d0;
    border-radius: 20px;
    box-shadow: 0 26px 56px rgba(2, 6, 23, 0.30), 0 4px 14px rgba(216, 67, 21, 0.12);
    padding: 22px 22px 20px;
    position: relative;
}

.login-modal-card::-webkit-scrollbar {
    width: 8px;
}

.login-modal-card::-webkit-scrollbar-thumb {
    background: rgba(216, 67, 21, 0.25);
    border-radius: 999px;
}

.login-modal-close {
    position: absolute;
    top: 10px;
    right: 10px;
    width: 34px;
    height: 34px;
    border: none;
    border-radius: 999px;
    background: #fff2ea;
    color: #8d6e63;
    cursor: pointer;
    font-size: 18px;
    line-height: 1;
    transition: all 0.2s ease;
}

.login-modal-close:hover {
    background: #ffe7db;
    color: #d84315;
}

.login-modal-head {
    text-align: center;
    margin: 2px 0 14px;
}

.login-modal-title {
    margin: 0 0 6px;
    color: #d84315;
    font-size: 1.54rem;
    line-height: 1.22;
    font-weight: 700;
    letter-spacing: 0.01em;
}

.login-modal-subtitle {
    margin: 0;
    color: #7b5e57;
    font-size: 0.92rem;
}

.login-modal-panel {
    display: none;
}

.login-modal-panel.is-active {
    display: block;
}

.login-modal-alert {
    display: none;
    border: 1px solid transparent;
    border-radius: 10px;
    padding: 10px 12px;
    font-size: 14px;
    margin-bottom: 12px;
    line-height: 1.5;
}

.login-modal-alert.is-visible {
    display: block;
}

.login-modal-alert.is-error {
    color: #b91c1c;
    background: #fff3f2;
    border-color: #ffd2cf;
}

.login-modal-alert.is-success {
    color: #15803d;
    background: #f0fdf4;
    border-color: #bbf7d0;
}

.login-modal-card,
.login-modal-card *,
.login-modal-card *::before,
.login-modal-card *::after {
    box-sizing: border-box;
}

.login-modal-form {
    display: flex;
    flex-direction: column;
    gap: 12px;
    width: 100%;
    margin: 0 auto;
}

.login-modal-field {
    display: flex;
    flex-direction: column;
    gap: 5px;
    width: 100%;
}

.login-modal-field label {
    font-size: 13px;
    font-weight: 600;
    color: #5d4037;
}

.login-modal-field input {
    display: block;
    width: 100%;
    max-width: 100%;
    margin: 0;
    border: 1px solid #e6d0c7;
    border-radius: 10px;
    padding: 10px 12px;
    font-size: 14px;
    color: #1f2937;
    background: #fff;
    transition: all 0.2s ease;
}

.login-modal-field input:focus {
    outline: none;
    border-color: #d84315;
    box-shadow: 0 0 0 3px rgba(216, 67, 21, 0.13);
}

.login-modal-field-hint {
    margin: 2px 0 0;
    font-size: 12px;
    color: #8d6e63;
}

.login-modal-submit {
    width: 100%;
    border: none;
    border-radius: 10px;
    background: linear-gradient(135deg, #d84315, #f4511e);
    color: #fff;
    font-weight: 700;
    font-size: 14px;
    padding: 10px 12px;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: 0 8px 18px rgba(216, 67, 21, 0.24);
}

.login-modal-submit:hover {
    background: linear-gradient(135deg, #bf360c, #e64a19);
    transform: translateY(-1px);
}

.login-modal-submit:disabled {
    opacity: 0.72;
    cursor: not-allowed;
    transform: none;
}

.login-modal-footer-tip {
    margin: 12px 0 0;
    text-align: center;
    color: #8d6e63;
    font-size: 13px;
}

.login-modal-footer-tip a {
    color: #d84315;
    font-weight: 700;
    text-decoration: underline;
    text-decoration-thickness: 2px;
    text-underline-offset: 2px;
}

.login-modal-footer-tip a:hover {
    color: #bf360c;
}

.record-save-modal-card {
    max-width: 500px;
}

#record-save-modal-overlay .login-modal-title {
    letter-spacing: 0.02em;
}

#record-save-modal-overlay .login-modal-subtitle {
    font-size: 0.9rem;
}

.record-confirm-message {
    margin: 4px 0 14px;
    color: #6d4c41;
    font-size: 14px;
    line-height: 1.6;
}

.record-confirm-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.record-confirm-cancel {
    background: linear-gradient(135deg, #b0bec5, #90a4ae);
    box-shadow: 0 8px 18px rgba(96, 125, 139, 0.22);
}

.record-confirm-cancel:hover {
    background: linear-gradient(135deg, #90a4ae, #78909c);
}

.record-confirm-submit {
    background: linear-gradient(135deg, #c62828, #e53935);
    box-shadow: 0 8px 18px rgba(198, 40, 40, 0.26);
}

.record-confirm-submit:hover {
    background: linear-gradient(135deg, #b71c1c, #d32f2f);
}

.ai-login-btn,
.exp-notes-login-link {
    cursor: pointer;
}