* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
    font-size: 16px;
}

.container {
    max-width: 600px;
    margin: 0 auto;
    background: white;
    border-radius: 20px;
    padding: 30px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}

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

.header h1 {
    font-size: 28px;
    color: #333;
    margin-bottom: 10px;
}

.header p {
    color: #666;
    font-size: 14px;
}

/* Steps Indicator */
.steps {
    display: flex;
    justify-content: space-between;
    margin-bottom: 40px;
    position: relative;
}

.steps::before {
    content: '';
    position: absolute;
    top: 20px;
    left: 0;
    right: 0;
    height: 2px;
    background: #e0e0e0;
    z-index: 0;
}

.step {
    display: flex;
    flex-direction: column;
    align-items: center;
    flex: 1;
    position: relative;
    z-index: 1;
}

.step-number {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: #e0e0e0;
    color: #999;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    margin-bottom: 8px;
    transition: all 0.3s;
}

.step.active .step-number {
    background: #667eea;
    color: white;
    transform: scale(1.1);
}

.step-label {
    font-size: 12px;
    color: #999;
    text-align: center;
}

.step.active .step-label {
    color: #667eea;
    font-weight: 600;
}

/* Booking Steps */
.booking-step {
    display: none;
}

.booking-step.active {
    display: block;
    animation: fadeIn 0.3s;
}

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

.booking-step h2 {
    font-size: 22px;
    margin-bottom: 25px;
    color: #333;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #555;
    font-size: 14px;
}

.form-control {
    width: 100%;
    padding: 15px;
    border: 2px solid #e0e0e0;
    border-radius: 12px;
    font-size: 16px;
    transition: all 0.3s;
    outline: none;
}

.form-control:focus {
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

/* Buttons */
.btn {
    padding: 15px 30px;
    border: none;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    outline: none;
    text-align: center;
    touch-action: manipulation;
}

.btn:active {
    transform: scale(0.98);
}

.btn-primary {
    background: #667eea;
    color: white;
}

.btn-primary:hover {
    background: #5568d3;
}

.btn-secondary {
    background: #e0e0e0;
    color: #666;
}

.btn-secondary:hover {
    background: #d0d0d0;
}

.btn-success {
    background: #4caf50;
    color: white;
}

.btn-success:hover {
    background: #45a049;
}

.btn-danger {
    background: #f44336;
    color: white;
}

.btn-block {
    width: 100%;
    display: block;
}

.btn-group {
    display: flex;
    gap: 10px;
    margin-top: 20px;
}

.btn-group .btn {
    flex: 1;
}

.btn-link {
    background: none;
    color: #667eea;
    border: none;
    padding: 10px;
    cursor: pointer;
    font-size: 14px;
    text-decoration: underline;
}

/* Time Slots */
.time-slots {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 10px;
}

.time-slot {
    padding: 15px;
    border: 2px solid #e0e0e0;
    border-radius: 12px;
    background: white;
    cursor: pointer;
    transition: all 0.3s;
    font-size: 15px;
    font-weight: 600;
    color: #555;
}

.time-slot:hover {
    border-color: #667eea;
    background: #f8f9ff;
}

.time-slot.selected {
    border-color: #667eea;
    background: #667eea;
    color: white;
}

.no-slots {
    text-align: center;
    padding: 30px;
    color: #999;
    font-style: italic;
}

/* Services Grid */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 15px;
}

/* Category Grid */
.category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.category-card {
    background: white;
    border: 3px solid #e0e0e0;
    border-radius: 20px;
    padding: 40px 20px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s;
}

.category-card:hover {
    border-color: #667eea;
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.3);
}

.category-card.selected {
    border-color: #667eea;
    background: #f8f9ff;
}

.category-icon {
    font-size: 60px;
    margin-bottom: 15px;
}

.category-card h3 {
    font-size: 22px;
    margin-bottom: 10px;
    color: #333;
}

.category-card p {
    color: #666;
    font-size: 14px;
}

/* Gender Grid */
.gender-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    max-width: 500px;
    margin: 0 auto;
}

.gender-card {
    background: white;
    border: 3px solid #e0e0e0;
    border-radius: 20px;
    padding: 40px 20px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s;
}

.gender-card:hover {
    border-color: #667eea;
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.3);
}

.gender-card.selected {
    border-color: #667eea;
    background: #f8f9ff;
}

.gender-icon {
    font-size: 80px;
    margin-bottom: 15px;
}

.gender-card h3 {
    font-size: 24px;
    color: #333;
}

/* Birthday Inputs */
.birthday-inputs {
    display: flex;
    gap: 4%;
}

.birthday-inputs select {
    flex: 1;
}

.service-card {
    border: 2px solid #e0e0e0;
    border-radius: 15px;
    padding: 20px;
    cursor: pointer;
    transition: all 0.3s;
    background: white;
}

.service-card:hover {
    border-color: #667eea;
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.2);
    transform: translateY(-2px);
}

.service-card.selected {
    border-color: #667eea;
    background: #f8f9ff;
}

.service-card h3 {
    font-size: 18px;
    margin-bottom: 10px;
    color: #333;
}

.service-description {
    font-size: 14px;
    color: #666;
    margin-bottom: 15px;
    line-height: 1.5;
}

.service-details {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 15px;
    border-top: 1px solid #e0e0e0;
}

.service-duration {
    font-size: 13px;
    color: #999;
}

.service-price {
    font-size: 18px;
    font-weight: bold;
    color: #667eea;
}

/* OTP Input */
.otp-input {
    text-align: center;
    font-size: 24px;
    letter-spacing: 10px;
    font-weight: bold;
}

.verification-info {
    background: #f8f9ff;
    padding: 20px;
    border-radius: 12px;
    margin-bottom: 25px;
    text-align: center;
}

.verification-info p {
    margin: 0;
    color: #555;
}

/* Success Message */
.success-message {
    text-align: center;
}

.success-icon {
    width: 80px;
    height: 80px;
    background: #4caf50;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 50px;
    margin: 0 auto 20px;
    animation: scaleIn 0.5s;
}

@keyframes scaleIn {
    from { transform: scale(0); }
    to { transform: scale(1); }
}

.success-message h2 {
    color: #4caf50;
    margin-bottom: 15px;
}

.booking-details {
    background: #f8f9ff;
    padding: 25px;
    border-radius: 12px;
    margin: 25px 0;
    text-align: left;
}

.detail-row {
    display: flex;
    justify-content: space-between;
    padding: 12px 0;
    border-bottom: 1px solid #e0e0e0;
}

.detail-row:last-child {
    border-bottom: none;
}

.detail-label {
    font-weight: 600;
    color: #666;
}

.detail-value {
    color: #333;
    font-weight: 600;
}

/* Loading Spinner */
.loading {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid rgba(255,255,255,0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* Responsive */
@media (max-width: 480px) {
    body {
        padding: 10px;
    }
    
    .container {
        padding: 20px;
    }
    
    .header h1 {
        font-size: 24px;
    }
    
    .step-label {
        font-size: 10px;
    }
    
    .step-number {
        width: 35px;
        height: 35px;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .time-slots {
        grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    }
}