/* Trang quản lý – dùng chung màu và nút từ /styles.css */
body.admin {
    background: var(--bg-light);
    min-height: 100vh;
}

.admin-header {
    background: var(--bg-white);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 50;
}

.admin-header-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding-top: 10px;
    padding-bottom: 10px;
}

.admin-user {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 14px;
    color: var(--text-secondary);
}

.admin-main {
    padding-top: 24px;
    padding-bottom: 64px;
    max-width: 960px;
}

.admin-card {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 24px;
    margin-bottom: 20px;
}

.admin-card h2 {
    font-size: 20px;
    margin-bottom: 8px;
}

.admin-card .field {
    margin-bottom: 14px;
}

.admin-hint {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 14px;
}

.admin-muted {
    color: var(--text-secondary);
    padding: 24px 0;
    text-align: center;
}

.login-card {
    max-width: 440px;
    margin: 48px auto;
    text-align: center;
}

.login-card h1 {
    font-size: 26px;
    margin-bottom: 8px;
}

.login-card p {
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.google-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
}

/* Tabs */
.admin-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 20px;
    overflow-x: auto;
}

.admin-tabs button {
    flex: 0 0 auto;
    padding: 10px 18px;
    border-radius: 999px;
    border: 1px solid var(--border-color);
    background: var(--bg-white);
    color: var(--text-secondary);
    font: inherit;
    font-weight: 600;
    cursor: pointer;
}

.admin-tabs button.active {
    background: var(--blue-color);
    border-color: var(--blue-color);
    color: white;
}

.admin-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.segmented {
    display: inline-flex;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    overflow: hidden;
    background: var(--bg-white);
}

.segmented button {
    padding: 8px 16px;
    border: none;
    background: transparent;
    font: inherit;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
}

.segmented button.active {
    background: var(--primary-color);
    color: white;
}

/* Lịch hẹn */
.day-heading {
    font-size: 15px;
    font-weight: 700;
    color: var(--blue-dark);
    margin: 20px 0 10px;
}

.appt {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-left: 5px solid var(--sky-color);
    border-radius: 12px;
    padding: 16px 18px;
    margin-bottom: 12px;
}

.appt.confirmed {
    border-left-color: var(--primary-color);
}

.appt.past {
    opacity: 0.7;
}

.appt-top {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 12px;
    flex-wrap: wrap;
}

.appt-time {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
}

.appt-name {
    font-size: 17px;
    font-weight: 600;
}

.badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 600;
    white-space: nowrap;
}

.badge.pending {
    background: var(--sky-light);
    color: var(--blue-dark);
}

.badge.confirmed {
    background: #d1fae5;
    color: var(--primary-dark);
}

.appt-details {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 4px 14px;
    font-size: 14px;
    margin: 12px 0;
}

.appt-details dt {
    color: var(--text-secondary);
}

.appt-details dd {
    word-break: break-word;
}

.appt-details a {
    color: var(--blue-color);
}

.appt-actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.appt-actions button,
.appt-actions a {
    padding: 8px 14px;
    font-size: 14px;
    text-decoration: none;
}

.btn-danger {
    background: transparent;
    border: 1px solid var(--blue-dark);
    color: var(--blue-dark);
    border-radius: 8px;
    font: inherit;
    font-weight: 500;
    cursor: pointer;
}

.reschedule-row {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    align-items: center;
    margin-top: 10px;
}

.reschedule-row input {
    padding: 8px 10px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font: inherit;
}

/* Lịch làm việc */
.mode-buttons {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.mode-btn {
    padding: 18px;
    border-radius: 14px;
    border: 2px solid var(--border-color);
    background: var(--bg-white);
    font: inherit;
    cursor: pointer;
    text-align: left;
}

.mode-btn strong {
    display: block;
    font-size: 18px;
    color: var(--text-primary);
}

.mode-btn span {
    font-size: 14px;
    color: var(--text-secondary);
}

.mode-btn.active {
    border-color: var(--primary-color);
    background: var(--bg-light);
    box-shadow: 0 0 0 3px #d1fae5;
}

.mode-btn.active strong::after {
    content: " ✓ đang chọn";
    font-size: 13px;
    color: var(--primary-dark);
}

.hours-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 16px;
}

.hours-grid fieldset {
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 12px 16px;
}

.hours-grid legend {
    font-weight: 600;
    padding: 0 6px;
}

.hours-grid .time-row {
    display: flex;
    align-items: center;
    gap: 8px;
}

.hours-grid .time-row input {
    flex: 1;
    min-width: 0;
}

.hours-grid input,
.block-form input,
.admin-card select {
    font: inherit;
    font-size: 16px;
    padding: 10px 12px;
    border: 2px solid var(--border-color);
    border-radius: 10px;
    background: var(--bg-white);
}

.block-form {
    display: grid;
    grid-template-columns: 1fr 1fr 2fr auto;
    gap: 12px;
    align-items: end;
}

.block-form .field {
    margin-bottom: 0;
}

.block-list {
    list-style: none;
    margin-top: 16px;
}

.block-list li {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    border-radius: 10px;
    background: var(--sky-light);
    margin-bottom: 8px;
}

/* Người quản lý */
.user-list {
    list-style: none;
    margin-bottom: 20px;
}

.user-list li {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    padding: 12px 14px;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    margin-bottom: 8px;
}

.user-list small {
    color: var(--text-secondary);
}

.user-list .badge {
    margin-left: 6px;
}

.user-form {
    grid-template-columns: 2fr 2fr auto;
}

/* Nội dung */
.service-row {
    display: grid;
    grid-template-columns: 2fr 3fr 1.2fr auto auto;
    gap: 10px;
    align-items: center;
    padding: 10px 0;
    border-bottom: 1px solid var(--border-color);
}

.service-row input[type="text"],
.service-row input[type="number"] {
    width: 100%;
    font: inherit;
    font-size: 15px;
    padding: 9px 10px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
}

.service-row label {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    white-space: nowrap;
}

.service-row input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--primary-color);
}

.icon-btn {
    border: none;
    background: transparent;
    color: var(--blue-dark);
    font-size: 20px;
    cursor: pointer;
    padding: 4px 8px;
}

.admin-actions {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    margin-top: 16px;
}

.pay-preview img {
    width: 180px;
    height: 180px;
    border: 2px solid var(--border-color);
    border-radius: 12px;
    margin-bottom: 14px;
}

.photo-editor {
    display: flex;
    gap: 20px;
    align-items: center;
    margin-bottom: 20px;
}

.photo-preview {
    width: 120px;
    aspect-ratio: 4 / 5;
    border-radius: 12px;
    border: 2px dashed var(--sky-color);
    background: var(--sky-light) center / cover no-repeat;
    flex-shrink: 0;
}

.file-btn {
    display: inline-block;
    cursor: pointer;
    margin-right: 8px;
}

.toast {
    position: fixed;
    left: 50%;
    bottom: 24px;
    transform: translateX(-50%);
    background: var(--text-primary);
    color: white;
    padding: 12px 20px;
    border-radius: 10px;
    font-weight: 500;
    z-index: 2000;
    max-width: calc(100% - 32px);
    box-shadow: var(--shadow-xl);
}

.toast.error {
    background: var(--blue-dark);
}

@media (max-width: 768px) {
    .admin-email {
        display: none;
    }

    .admin-card {
        padding: 18px 16px;
    }

    .mode-buttons,
    .hours-grid,
    .block-form {
        grid-template-columns: 1fr;
    }

    .service-row {
        grid-template-columns: 1fr 1fr;
    }

    .service-row .svc-desc {
        grid-column: 1 / -1;
        order: 3;
    }

    .service-row .svc-name {
        grid-column: 1 / -1;
    }

    .photo-editor {
        flex-direction: column;
        align-items: flex-start;
    }
}