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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
    position: relative;
    z-index: 10;
}

.login-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-radius: 20px;
    padding: 40px;
    width: 100%;
    max-width: 450px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    animation: slideUp 0.8s ease-out;
    position: relative;
    overflow: hidden;
}

.login-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s;
}

.login-card:hover::before {
    left: 100%;
}

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

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

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-bottom: 20px;
}

.logo i {
    font-size: 2.5rem;
    color: #667eea;
    animation: pulse 2s infinite;
}

.logo span {
    font-size: 1.8rem;
    font-weight: bold;
    color: #333;
    background: linear-gradient(135deg, #667eea, #764ba2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

#form-title {
    color: #333;
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: 8px;
    transition: all 0.3s ease;
}

#form-subtitle {
    color: #666;
    font-size: 1rem;
    transition: all 0.3s ease;
}

/* User Type Toggle */
.user-type-toggle {
    margin-bottom: 30px;
}

.toggle-container {
    position: relative;
    display: flex;
    background: #f8f9fa;
    border-radius: 50px;
    padding: 4px;
    border: 2px solid #e9ecef;
}

.toggle-container input[type="radio"] {
    display: none;
}

.toggle-label {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 20px;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    z-index: 2;
    color: #666;
    font-weight: 500;
}

.toggle-label i {
    font-size: 1.1rem;
}

.toggle-slider {
    position: absolute;
    top: 4px;
    left: 4px;
    width: calc(50% - 4px);
    height: calc(100% - 8px);
    background: linear-gradient(135deg, #667eea, #764ba2);
    border-radius: 50px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 2px 10px rgba(102, 126, 234, 0.3);
}

input[type="radio"]:checked + .toggle-label {
    color: white;
}

input[name="user-type"]:nth-of-type(2):checked ~ .toggle-slider {
    transform: translateX(100%);
}

/* Form Styles */
.auth-form {
    display: none;
    animation: fadeIn 0.5s ease-in-out;
}

.auth-form.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateX(20px); }
    to { opacity: 1; transform: translateX(0); }
}

.form-group {
    margin-bottom: 25px;
}

.input-container {
    position: relative;
}

.input-container input {
    width: 100%;
    padding: 15px 50px 15px 50px;
    border: 2px solid #e9ecef;
    border-radius: 12px;
    font-size: 1rem;
    background: #f8f9fa;
    transition: all 0.3s ease;
    outline: none;
    position: relative;
    z-index: 10;
    pointer-events: auto;
}

.input-container input:focus {
    border-color: #667eea;
    background: white;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
    transform: translateY(-2px);
}

.input-icon {
    position: absolute;
    left: 18px;
    top: 50%;
    transform: translateY(-50%);
    color: #666;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    z-index: 5;
    pointer-events: none;
}

.input-container input:focus + .input-underline {
    width: 100%;
}

.input-container input:focus ~ .input-icon {
    color: #667eea;
}

.input-underline {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    transition: width 0.3s ease;
}

.password-toggle {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: #666;
    cursor: pointer;
    font-size: 1.1rem;
    transition: color 0.3s ease;
    z-index: 15;
}

.password-toggle:hover {
    color: #667eea;
}

.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    flex-wrap: wrap;
    gap: 10px;
}

.checkbox-container {
    display: flex;
    align-items: center;
    cursor: pointer;
    font-size: 0.9rem;
    color: #666;
}

.checkbox-container input {
    display: none;
}

.checkmark {
    width: 18px;
    height: 18px;
    border: 2px solid #ddd;
    border-radius: 4px;
    margin-right: 8px;
    position: relative;
    transition: all 0.3s ease;
}

.checkbox-container input:checked + .checkmark {
    background: linear-gradient(135deg, #667eea, #764ba2);
    border-color: #667eea;
}

.checkbox-container input:checked + .checkmark::after {
    content: '✓';
    position: absolute;
    top: -2px;
    left: 2px;
    color: white;
    font-size: 12px;
    font-weight: bold;
}

.forgot-password {
    color: #667eea;
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.3s ease;
}

.forgot-password:hover {
    color: #764ba2;
    text-decoration: underline;
}

.auth-btn {
    width: 100%;
    padding: 15px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    margin-bottom: 20px;
}

.auth-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(102, 126, 234, 0.3);
}

.auth-btn:active {
    transform: translateY(0);
}

.btn-text {
    transition: opacity 0.3s ease;
}

.btn-loader {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.auth-btn.loading .btn-text {
    opacity: 0;
}

.auth-btn.loading .btn-loader {
    opacity: 1;
}

.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top: 2px solid white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

.form-switch {
    text-align: center;
}

.form-switch p {
    color: #666;
    font-size: 0.9rem;
}

.form-switch a {
    color: #667eea;
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

.form-switch a:hover {
    color: #764ba2;
    text-decoration: underline;
}

/* Background Animation */
.bg-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    overflow: hidden;
    pointer-events: none;
}

.floating-shapes {
    position: relative;
    width: 100%;
    height: 100%;
}

.shape {
    position: absolute;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    animation: float 6s ease-in-out infinite;
}

.shape-1 {
    width: 80px;
    height: 80px;
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.shape-2 {
    width: 60px;
    height: 60px;
    top: 60%;
    left: 80%;
    animation-delay: 2s;
}

.shape-3 {
    width: 100px;
    height: 100px;
    top: 80%;
    left: 20%;
    animation-delay: 4s;
}

.shape-4 {
    width: 40px;
    height: 40px;
    top: 30%;
    left: 70%;
    animation-delay: 1s;
}

.shape-5 {
    width: 120px;
    height: 120px;
    top: 10%;
    left: 60%;
    animation-delay: 3s;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0) rotate(0deg);
        opacity: 0.7;
    }
    50% {
        transform: translateY(-20px) rotate(180deg);
        opacity: 1;
    }
}

/* Message System */
.message-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1000;
    opacity: 0;
    transform: translateX(100%);
    transition: all 0.3s ease;
}

.message-container.show {
    opacity: 1;
    transform: translateX(0);
}

.message {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 15px 20px;
    border-radius: 12px;
    color: white;
    font-weight: 500;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
    min-width: 300px;
}

.message.success {
    background: linear-gradient(135deg, #28a745, #20c997);
}

.message.error {
    background: linear-gradient(135deg, #dc3545, #fd7e14);
}

.message-icon {
    font-size: 1.2rem;
}

.message-text {
    flex: 1;
}

.message-close {
    background: none;
    border: none;
    color: white;
    cursor: pointer;
    font-size: 1.1rem;
    opacity: 0.8;
    transition: opacity 0.3s ease;
}

.message-close:hover {
    opacity: 1;
}

/* Responsive Design */
@media (max-width: 768px) {
    .login-card {
        padding: 30px 20px;
        margin: 10px;
    }
    
    .logo span {
        font-size: 1.5rem;
    }
    
    #form-title {
        font-size: 1.7rem;
    }
    
    .form-options {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }
    
    .message {
        min-width: auto;
        max-width: calc(100vw - 40px);
    }
}

@media (max-width: 480px) {
    .login-container {
        padding: 10px;
    }
    
    .login-card {
        padding: 25px 15px;
    }
    
    .toggle-label {
        padding: 10px 15px;
        font-size: 0.9rem;
    }
    
    .input-container input {
        padding: 12px 45px 12px 45px;
        font-size: 0.9rem;
    }
}