/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #00C851;
    --secondary-color: #00A342;
    --text-color: #333;
    --background-color: #f8f9fa;
    --white: #ffffff;
    --border-color: #e0e0e0;
    --error-color: #e74c3c;
    --success-color: #28a745;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
        'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
        sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background-color);
}

/* Container */
.container {
    max-width: 600px;
    margin: 0 auto;
    padding: 20px;
    background-color: var(--white);
    border-radius: 12px;
    box-shadow: var(--shadow);
    margin-top: 20px;
    margin-bottom: 40px;
}

/* Header */
header {
    text-align: center;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 2px solid var(--border-color);
}

header h1 {
    color: var(--primary-color);
    font-size: 1.8em;
    margin-bottom: 10px;
    font-weight: 700;
    line-height: 1.3;
}

.store-info {
    color: #666;
    font-size: 1em;
    margin-top: 10px;
}

/* Section styles */
section {
    margin-bottom: 30px;
}

section h2 {
    color: var(--text-color);
    font-size: 1.3em;
    margin-bottom: 15px;
    font-weight: 600;
    padding-left: 10px;
    border-left: 4px solid var(--primary-color);
}

section h3 {
    color: var(--text-color);
    font-size: 1.1em;
    margin-bottom: 10px;
    font-weight: 600;
}

/* Button groups */
.button-group {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-bottom: 20px;
}

/* Visit buttons */
.visit-btn {
    padding: 15px 20px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    background-color: var(--white);
    color: var(--text-color);
    font-size: 1em;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.visit-btn:hover {
    border-color: var(--primary-color);
    background-color: rgba(0, 200, 81, 0.05);
}

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

/* Menu list */
.menu-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.menu-btn {
    padding: 16px 20px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    background-color: var(--white);
    color: var(--text-color);
    text-align: left;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.menu-btn:hover {
    border-color: var(--primary-color);
    background-color: rgba(0, 200, 81, 0.05);
}

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

.menu-name {
    font-weight: 600;
    font-size: 1.1em;
}

.menu-details {
    font-size: 0.9em;
    opacity: 0.8;
}

/* Calendar styles */
.date-picker {
    margin-bottom: 20px;
}

.month-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 15px;
    padding: 0 10px;
}

.month-nav button {
    background: none;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 8px 12px;
    cursor: pointer;
    font-size: 1.1em;
    color: var(--text-color);
}

.month-nav button:hover {
    background-color: var(--border-color);
}

#currentMonth {
    font-weight: 600;
    font-size: 1.1em;
}

#calendar {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 2px;
    margin-bottom: 15px;
}

.calendar-day {
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.9em;
    transition: all 0.2s ease;
}

.calendar-day:hover {
    background-color: rgba(0, 200, 81, 0.1);
}

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

.calendar-day.disabled {
    background-color: #f5f5f5;
    color: #ccc;
    cursor: not-allowed;
}

.calendar-day.today {
    border-color: var(--primary-color);
    font-weight: 600;
}

/* Time picker */
.time-picker {
    padding: 15px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background-color: #f9f9f9;
}

#timeSlots {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(80px, 1fr));
    gap: 8px;
    margin-top: 10px;
}

.time-slot {
    padding: 10px 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background-color: var(--white);
    text-align: center;
    cursor: pointer;
    font-size: 0.9em;
    transition: all 0.2s ease;
}

.time-slot:hover {
    background-color: rgba(0, 200, 81, 0.1);
}

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

.time-slot.disabled {
    background-color: #f5f5f5;
    color: #ccc;
    cursor: not-allowed;
}

/* Form styles */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 8px;
}

.required {
    color: var(--error-color);
    margin-left: 4px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1em;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
    background-color: var(--white);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 200, 81, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 80px;
    font-family: inherit;
}

/* Summary section */
.summary-section {
    background-color: #f8f9fa;
    padding: 20px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.summary-content {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.summary-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
    border-bottom: 1px solid var(--border-color);
}

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

.summary-item .label {
    font-weight: 600;
    color: var(--text-color);
    min-width: 80px;
}

/* Submit section */
.submit-section {
    text-align: center;
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

.submit-btn {
    background-color: var(--primary-color);
    color: var(--white);
    border: none;
    padding: 16px 40px;
    font-size: 1.2em;
    font-weight: 600;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    min-width: 200px;
    margin-bottom: 10px;
}

.submit-btn:hover:not(:disabled) {
    background-color: var(--secondary-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 200, 81, 0.3);
}

.submit-btn:disabled {
    background-color: #bdc3c7;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.note {
    font-size: 0.9em;
    color: #666;
    margin-top: 10px;
}

/* Loading state */
.loading {
    position: relative;
    pointer-events: none;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid var(--white);
    border-radius: 50%;
    border-top-color: transparent;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* Error styles */
.field-error {
    border-color: var(--error-color) !important;
    box-shadow: 0 0 0 3px rgba(231, 76, 60, 0.1) !important;
}

.error-message {
    color: var(--error-color);
    font-size: 0.9em;
    margin-top: 8px;
    padding: 8px 12px;
    background-color: rgba(231, 76, 60, 0.1);
    border-radius: 4px;
}

/* Success message */
.success-message {
    background-color: #d4edda;
    border: 1px solid #c3e6cb;
    color: #155724;
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 20px;
    text-align: center;
    font-weight: 600;
}

/* Responsive design */
@media (max-width: 768px) {
    .container {
        margin: 10px;
        padding: 16px;
        border-radius: 8px;
    }
    
    header h1 {
        font-size: 1.5em;
    }
    
    .button-group {
        grid-template-columns: 1fr;
    }
    
    .menu-btn {
        padding: 14px 16px;
    }
    
    #timeSlots {
        grid-template-columns: repeat(auto-fit, minmax(70px, 1fr));
    }
    
    .submit-btn {
        width: 100%;
        padding: 14px;
        font-size: 1.1em;
    }
    
    .summary-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 4px;
    }
}