:root {
    --primary-color: #4CAF50;
    --primary-hover-color: #45a049;
    --background-color: #f4f7f6;
    --container-background: #ffffff;
    --border-color: #e0e0e0;
    --text-color: #333333;
    --text-light-color: #757575;
    --error-color: #f44336;
    --disabled-color: #dcdcdc;
    --disabled-text-color: #a0a0a0;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    margin: 0;
    padding: 20px;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    min-height: 100vh;
}

.form-container {
    background-color: var(--container-background);
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    width: 100%;
    max-width: 900px;
    overflow: hidden;
}

header {
    padding: 20px 30px;
    border-bottom: 1px solid var(--border-color);
}

h1 {
    font-size: 24px;
    margin: 0 0 20px;
    text-align: center;
}

.stepper {
    display: flex;
    justify-content: space-between;
    list-style: none;
    padding: 0;
    margin: 0;
}

.step {
    display: flex;
    align-items: center;
    color: var(--text-light-color);
    flex: 1;
    justify-content: center;
    padding: 10px;
    position: relative;
}

.step span {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background-color: var(--border-color);
    color: var(--text-light-color);
    display: inline-flex;
    justify-content: center;
    align-items: center;
    margin-right: 10px;
    font-weight: 500;
    transition: background-color 0.3s, color 0.3s;
}

.step.active span, .step.completed span {
    background-color: var(--primary-color);
    color: white;
}

.step.active {
    color: var(--text-color);
    font-weight: 500;
}

.step:not(:last-child)::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    height: 2px;
    width: calc(100% - 40px);
    background-color: var(--border-color);
    transform: translateY(-50%);
    z-index: -1;
}

.step.completed:not(:last-child)::after {
     background-color: var(--primary-color);
}


main {
    padding: 30px;
}

.step-content {
    display: none;
}

.step-content.active {
    display: block;
}

h2 {
    font-size: 20px;
    margin-top: 0;
    margin-bottom: 20px;
}

.content-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}

.column {
    display: flex;
    flex-direction: column;
}

h3 {
    font-size: 16px;
    margin-top: 0;
    margin-bottom: 15px;
    border-bottom: 2px solid var(--primary-color);
    padding-bottom: 8px;
}

.list-container {
    border: 1px solid var(--border-color);
    border-radius: 8px;
    min-height: 300px;
    max-height: 400px;
    overflow-y: auto;
}

/* Стили для карточек (врачи, услуги) */
.doctor-card, .service-item {
    display: flex;
    align-items: center;
    padding: 15px;
    border-bottom: 1px solid var(--border-color);
    cursor: pointer;
    transition: background-color 0.2s;
}

.doctor-card:last-child, .service-item:last-child {
    border-bottom: none;
}

.doctor-card:hover, .service-item:hover {
    background-color: #f9f9f9;
}

.doctor-card.selected, .service-item.selected {
    background-color: #e8f5e9;
    border-left: 4px solid var(--primary-color);
    padding-left: 11px;
}

.doctor-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    margin-right: 15px;
    object-fit: cover;
}

.doctor-info h4, .service-info h4 {
    margin: 0 0 5px;
    font-size: 16px;
}

.doctor-info .specialty, .doctor-info .experience, .service-info .category {
    font-size: 14px;
    color: var(--text-light-color);
}

.service-item {
    justify-content: space-between;
}

.service-price {
    font-weight: 500;
    white-space: nowrap;
    margin-left: 15px;
}

/* Календарь */
.calendar {
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 15px;
}

.calendar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

#current-month {
    font-weight: 500;
    font-size: 16px;
}

.calendar-weekdays, .calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    text-align: center;
}

.calendar-weekdays div {
    font-weight: 500;
    color: var(--text-light-color);
    font-size: 14px;
    padding: 10px 0;
}

.calendar-grid .calendar-day {
    padding: 10px;
    cursor: pointer;
    border-radius: 50%;
    transition: background-color 0.2s, color 0.2s;
    margin: 2px;
}

.calendar-day:hover:not(.disabled) {
    background-color: #e8f5e9;
}

.calendar-day.today {
    font-weight: bold;
    border: 1px solid var(--primary-color);
}

.calendar-day.selected {
    background-color: var(--primary-color);
    color: white;
}

.calendar-day.disabled {
    color: var(--disabled-text-color);
    cursor: not-allowed;
    background-color: #fcfcfc;
}

/* Слоты времени */
#time-slots-title {
    border-bottom: none;
    padding-bottom: 0;
    margin-bottom: 5px;
}

.time-slots-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
    gap: 10px;
    border: none;
    min-height: auto;
}

.time-slot {
    padding: 10px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
}

.time-slot:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.time-slot.selected {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

/* Форма */
.contact-form {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group.full-width {
    grid-column: 1 / -1;
}

.form-group label {
    margin-bottom: 5px;
    font-size: 14px;
    color: var(--text-light-color);
}

.form-group input, .form-group textarea {
    padding: 10px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 16px;
}

.form-group input:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(76, 175, 80, 0.2);
}

/* Подтверждение */
.summary-container {
    background-color: #f9f9f9;
    border-radius: 8px;
    padding: 20px;
    border: 1px solid var(--border-color);
}

.summary-container p {
    margin: 0 0 15px;
    font-size: 16px;
}

.summary-item {
    display: flex;
    justify-content: space-between;
    padding: 10px 0;
    border-bottom: 1px solid #e0e0e0;
}

.summary-item:last-child {
    border-bottom: none;
}

.summary-label {
    color: var(--text-light-color);
}

.summary-value {
    font-weight: 500;
}

/* Футер и навигация */
footer {
    padding: 20px 30px;
    border-top: 1px solid var(--border-color);
    background-color: #fcfcfc;
}

.navigation-buttons {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-btn {
    padding: 10px 20px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background-color: white;
    cursor: pointer;
    font-size: 16px;
    transition: all 0.2s;
}

.nav-btn.primary {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.nav-btn.primary:hover {
    background-color: var(--primary-hover-color);
    border-color: var(--primary-hover-color);
}

.nav-btn:disabled {
    background-color: var(--disabled-color);
    border-color: var(--disabled-color);
    color: var(--disabled-text-color);
    cursor: not-allowed;
}

#submit-btn, #reset-btn {
    display: none;
}

.error-message {
    color: var(--error-color);
    margin-bottom: 15px;
    text-align: center;
    min-height: 20px;
}

/* Вспомогательные классы */
.loading-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(255, 255, 255, 0.8);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 10;
}

.spinner {
    border: 4px solid #f3f3f3;
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}