* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #172b87 0%, #249399 100%);
    min-height: 100vh;
    color: #333;
    position: relative;
    overflow-x: hidden;
}

/* Background pattern */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 50%, rgba(23, 43, 135, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(36, 147, 153, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 40% 80%, rgba(30, 85, 121, 0.15) 0%, transparent 50%);
    z-index: -1;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    position: relative;
}

/* Staff Login Button */
.staff-login {
    position: relative;
    top: 20px;
    right: 20px;
    z-index: 1000;
    float: right;
}

.staff-btn {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.05) 100%);
    backdrop-filter: blur(15px);
    border: 2px solid rgba(255, 255, 255, 0.2);
    color: white;
    padding: 12px 20px;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s ease;
    font-size: 0.9rem;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

.staff-btn:hover {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.2) 0%, rgba(255, 255, 255, 0.1) 100%);
    border-color: rgba(255, 255, 255, 0.4);
    transform: translateY(-2px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.2);
}

.staff-btn i {
    font-size: 1.1rem;
}

/* Header */
.header {
    text-align: center;
    margin-bottom: 40px;
    color: white;
    animation: fadeInDown 1s ease-out;
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    margin-bottom: 10px;
}

.logo i {
    font-size: 3rem;
    background: linear-gradient(45deg, #ffd700, #ffeb3b, #ffc107);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: drop-shadow(0 0 20px rgba(255, 215, 0, 0.5));
    animation: pulse 2s infinite;
}

.header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
    background: linear-gradient(135deg, #ffffff 0%, #e3f2fd 50%, #bbdefb 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.subtitle {
    font-size: 1.1rem;
    opacity: 0.9;
    margin-top: 10px;
    background: linear-gradient(135deg, #bbdefb 0%, #e3f2fd 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Main Content */
.main-content {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

/* Alerts */
.alert {
    padding: 15px 20px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 500;
    box-shadow: 0 8px 32px rgba(0,0,0,0.1);
    backdrop-filter: blur(10px);
    animation: slideInFromTop 0.6s ease-out;
}

.alert-success {
    background: linear-gradient(135deg, rgba(76, 175, 80, 0.15) 0%, rgba(139, 195, 74, 0.1) 100%);
    color: #2e7d32;
    border: 1px solid rgba(76, 175, 80, 0.3);
}

.alert-error {
    background: linear-gradient(135deg, rgba(244, 67, 54, 0.15) 0%, rgba(229, 115, 115, 0.1) 100%);
    color: #c62828;
    border: 1px solid rgba(244, 67, 54, 0.3);
}

.alert i {
    font-size: 1.2rem;
}

/* Form Container */
.form-container {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.95) 0%, rgba(255, 255, 255, 0.9) 100%);
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.1);
    backdrop-filter: blur(20px);
    position: relative;
    transition: all 0.4s ease;
    animation: formAppear 1s ease-out 0.3s both;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.form-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, 
        rgba(23, 43, 135, 0.05) 0%, 
        rgba(36, 147, 153, 0.03) 50%,
        rgba(30, 85, 121, 0.05) 100%);
    border-radius: 20px;
    z-index: -1;
}

.form-container:hover {
    transform: translateY(-5px);
    box-shadow: 0 30px 80px rgba(0,0,0,0.15);
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.98) 0%, rgba(255, 255, 255, 0.95) 100%);
}

.form-container h2 {
    background: linear-gradient(135deg, #172b87 0%, #249399 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.8rem;
    position: relative;
    z-index: 1;
}

.form-description {
    color: #666;
    margin-bottom: 30px;
    line-height: 1.6;
    position: relative;
    z-index: 1;
}

/* Form Styles */
.appointment-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
    position: relative;
    z-index: 1;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-weight: 600;
    background: linear-gradient(135deg, #172b87 0%, #249399 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 0.95rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 15px 18px;
    border: 2px solid rgba(23, 43, 135, 0.2);
    border-radius: 12px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.9) 0%, rgba(255, 255, 255, 0.7) 100%);
    backdrop-filter: blur(10px);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border: 2px solid transparent;
    border-image: linear-gradient(135deg, #172b87 0%, #249399 100%) 1;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.95) 0%, rgba(255, 255, 255, 0.9) 100%);
    box-shadow: 
        0 0 0 4px rgba(23, 43, 135, 0.1),
        0 8px 25px rgba(36, 147, 153, 0.15);
    transform: translateY(-2px);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

/* Submit Button */
.submit-btn {
    background: linear-gradient(135deg, #172b87 0%, #249399 100%);
    color: white;
    border: none;
    padding: 18px 35px;
    border-radius: 12px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-top: 20px;
    position: relative;
    overflow: hidden;
    box-shadow: 0 8px 25px rgba(23, 43, 135, 0.3);
}

.submit-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

.submit-btn:hover::before {
    left: 100%;
}

.submit-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 35px rgba(23, 43, 135, 0.4);
    background: linear-gradient(135deg, #1e3498 0%, #2bb3bf 100%);
}

.submit-btn:active {
    transform: translateY(-1px);
}

/* Footer */
.footer {
    text-align: center;
    margin-top: 40px;
    color: white;
    opacity: 0.8;
    animation: fadeInUp 1s ease-out 0.6s both;
}

.footer p {
    margin: 5px 0;
}

/* Animations */
@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInFromTop {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes formAppear {
    from {
        opacity: 0;
        transform: translateY(50px) scale(0.9);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 15px;
    }
    
    .staff-login {
        position: relative;
        top: 0;
        left: 0;
        margin-bottom: 20px;
        display: flex;
        justify-content: center;
    }
    
    .header h1 {
        font-size: 2rem;
    }
    
    .logo i {
        font-size: 2.5rem;
    }
    
    .form-container {
        padding: 25px;
        margin-top: 20px;
    }
    
    .form-row {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .form-container h2 {
        font-size: 1.5rem;
    }
}

@media (max-width: 480px) {
    .header h1 {
        font-size: 1.8rem;
    }
    
    .form-container {
        padding: 20px;
    }
    
    .submit-btn {
        padding: 15px 30px;
        font-size: 1rem;
    }
    
    .staff-btn {
        padding: 10px 16px;
        font-size: 0.85rem;
    }
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.1);
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, #172b87 0%, #249399 100%);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, #1e3498 0%, #2bb3bf 100%);
}

/* Loading animation for form submission */
.submit-btn.loading {
    pointer-events: none;
    opacity: 0.7;
}

.submit-btn.loading::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    border: 2px solid transparent;
    border-top: 2px solid white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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