/**
 * Frontend Styling for Doctor Appointment Booking
 */

:root {
    --primary-color: #4a90e2;
    --secondary-color: #6c757d;
    --success-color: #28a745;
    --error-color: #dc3545;
    --text-color: #333;
    --border-color: #ddd;
    --bg-light: #f8f9fa;
    --white: #ffffff;
    --shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

.doctor-booking-container {
    max-width: 800px;
    margin: 20px auto;
    padding: 30px;
    background: var(--white);
    border-radius: 12px;
    box-shadow: var(--shadow);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: var(--text-color);
    position: relative;
    overflow: hidden;
}

.booking-header {
    text-align: center;
    margin-bottom: 30px;
}

.booking-header h2 {
    font-size: 28px;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.booking-header p {
    color: var(--secondary-color);
}

.booking-steps-indicator {
    display: flex;
    justify-content: space-between;
    margin-bottom: 40px;
    position: relative;
}

.booking-steps-indicator::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--border-color);
    z-index: 1;
}

.step-indicator {
    background: var(--white);
    padding: 10px 20px;
    border: 2px solid var(--border-color);
    border-radius: 20px;
    z-index: 2;
    font-weight: bold;
    color: var(--secondary-color);
    transition: var(--transition);
}

.step-indicator.active {
    border-color: var(--primary-color);
    color: var(--primary-color);
    background: var(--bg-light);
}

.booking-step {
    display: none;
    animation: fadeIn 0.5s ease;
}

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

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.step-section {
    margin-bottom: 30px;
}

.step-section h3 {
    font-size: 20px;
    margin-bottom: 20px;
    border-bottom: 2px solid var(--bg-light);
    padding-bottom: 10px;
}

/* Date Selection Grid */
.date-selection-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    gap: 15px;
}

.date-option {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 15px;
    border: 2px solid var(--border-color);
    border-radius: 10px;
    cursor: pointer;
    transition: var(--transition);
}

.date-option:hover:not(.disabled) {
    border-color: var(--primary-color);
    background: var(--bg-light);
}

.date-option.selected {
    border-color: var(--primary-color);
    background: var(--primary-color);
    color: var(--white);
}

.date-option.disabled {
    opacity: 0.5;
    cursor: not-allowed;
    background: #eee;
}

.day-name { font-size: 14px; text-transform: uppercase; }
.day-number { font-size: 24px; font-weight: bold; }
.month-name { font-size: 14px; }

/* Time Slots Grid */
.time-slots-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 10px;
}

.time-slot {
    padding: 12px;
    text-align: center;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
}

.time-slot:hover:not(.disabled) {
    background: var(--bg-light);
    border-color: var(--primary-color);
}

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

.time-slot.disabled {
    background: #f1f1f1;
    color: #ccc;
    cursor: not-allowed;
    text-decoration: line-through;
}

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

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

.form-group label {
    margin-bottom: 8px;
    font-weight: 600;
}

.form-group input {
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 16px;
}

.form-group input:focus {
    border-color: var(--primary-color);
    outline: none;
    box-shadow: 0 0 0 2px rgba(74, 144, 226, 0.2);
}

/* Booking Summary */
.booking-summary-card {
    background: var(--bg-light);
    padding: 20px;
    border-radius: 10px;
    border-left: 5px solid var(--primary-color);
}

.summary-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 10px;
    padding-bottom: 10px;
    border-bottom: 1px solid #eee;
}

.summary-row:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

/* Buttons */
.step-actions {
    display: flex;
    justify-content: flex-end;
    gap: 15px;
    margin-top: 30px;
}

.btn {
    padding: 12px 25px;
    border-radius: 6px;
    font-weight: bold;
    cursor: pointer;
    border: none;
    transition: var(--transition);
    font-size: 16px;
}

.btn-primary { background: var(--primary-color); color: var(--white); }
.btn-primary:hover { background: #357abd; }
.btn-primary:disabled { background: #ccc; cursor: not-allowed; }

.btn-secondary { background: var(--secondary-color); color: var(--white); }
.btn-secondary:hover { background: #5a6268; }

.btn-success { background: var(--success-color); color: var(--white); width: 100%; font-size: 18px; padding: 15px; }
.btn-success:hover { background: #218838; }

/* Loader & Messages */
.booking-loader {
    text-align: center;
    padding: 40px;
}

.spinner {
    border: 4px solid rgba(0,0,0,0.1);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border-left-color: var(--primary-color);
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
}

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

.booking-message {
    text-align: center;
    padding: 40px;
}

.booking-message .icon {
    font-size: 60px;
    margin-bottom: 20px;
}

.booking-message.success .icon { color: var(--success-color); }
.booking-message.error .icon { color: var(--error-color); }

/* Responsive */
@media (max-width: 600px) {
    .form-grid { grid-template-columns: 1fr; }
    .booking-steps-indicator { flex-direction: column; gap: 10px; align-items: center; }
    .booking-steps-indicator::before { display: none; }
    .step-indicator { width: 100%; text-align: center; }
    .date-selection-grid { grid-template-columns: repeat(3, 1fr); }
}

/* Extra Styles for Upgraded Features */
.form-group.full-width {
    grid-column: 1 / -1;
}

.form-group select {
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 16px;
    background: var(--white);
}

.form-group input.error, .form-group select.error {
    border-color: var(--error-color);
    background-color: #fff8f8;
}

.consent-wrapper {
    background: #f0f7ff;
    padding: 15px;
    border-radius: 8px;
    border: 1px solid #d0e3ff;
}

.consent-wrapper label {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    font-size: 14px;
}

.consent-wrapper input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

#pay-now-btn:disabled {
    background: #ccc;
    cursor: not-allowed;
}

.no-slots {
    grid-column: 1 / -1;
    text-align: center;
    padding: 20px;
    background: #fff3f3;
    color: #d9534f;
    border-radius: 8px;
}