/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #333;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    overflow-x: hidden;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    z-index: 1000;
    padding: 1rem 0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: #667eea;
}

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

.nav-buttons {
    display: flex;
    gap: 1rem;
}

/* Buttons */
.btn-primary, .btn-secondary {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.6);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.9);
    color: #667eea;
    border: 1px solid rgba(102, 126, 234, 0.2);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 1);
    transform: translateY(-1px);
}

.btn-full {
    width: 100%;
    justify-content: center;
    padding: 1rem;
    font-size: 1rem;
}

/* Main Container */
.auth-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 6rem 2rem 2rem;
    position: relative;
}

.auth-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    overflow: hidden;
    z-index: -1;
}

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(40px);
    opacity: 0.3;
    animation: float 6s ease-in-out infinite;
}

.orb-1 {
    width: 300px;
    height: 300px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    top: 10%;
    left: 10%;
    animation-delay: 0s;
}

.orb-2 {
    width: 200px;
    height: 200px;
    background: linear-gradient(135deg, #f093fb, #f5576c);
    top: 60%;
    right: 15%;
    animation-delay: 2s;
}

.orb-3 {
    width: 250px;
    height: 250px;
    background: linear-gradient(135deg, #4facfe, #00f2fe);
    bottom: 20%;
    left: 20%;
    animation-delay: 4s;
}

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

/* Auth Content */
.auth-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    max-width: 1200px;
    width: 100%;
    align-items: center;
}

/* Auth Card */
.auth-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-radius: 20px;
    padding: 3rem;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.auth-header {
    text-align: center;
    margin-bottom: 2.5rem;
}

.auth-logo {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.3);
}

.auth-logo i {
    font-size: 2rem;
    color: white;
}

.auth-header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #333;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, #667eea, #764ba2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.auth-header p {
    color: #666;
    font-size: 1.1rem;
}

/* Form Styles */
.auth-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

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

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-weight: 600;
    color: #333;
    font-size: 0.9rem;
}

.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.input-wrapper i {
    position: absolute;
    left: 1rem;
    color: #667eea;
    font-size: 1.1rem;
    z-index: 2;
}

.input-wrapper input,
.input-wrapper select {
    width: 100%;
    padding: 1rem 1rem 1rem 3rem;
    border: 2px solid rgba(102, 126, 234, 0.1);
    border-radius: 12px;
    font-size: 1rem;
    background: rgba(255, 255, 255, 0.8);
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.input-wrapper input:focus,
.input-wrapper select:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
    background: rgba(255, 255, 255, 1);
}

.input-wrapper select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%23667eea' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='m6 8 4 4 4-4'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    background-size: 1.5em 1.5em;
    padding-right: 3rem;
}

.password-toggle {
    position: absolute;
    right: 1rem;
    background: none;
    border: none;
    color: #667eea;
    cursor: pointer;
    font-size: 1.1rem;
    z-index: 2;
}

.password-toggle:hover {
    color: #764ba2;
}

/* Password Strength */
.password-strength {
    margin-top: 0.5rem;
}

.strength-bar {
    width: 100%;
    height: 4px;
    background: rgba(102, 126, 234, 0.1);
    border-radius: 2px;
    overflow: hidden;
    margin-bottom: 0.25rem;
}

.strength-fill {
    height: 100%;
    width: 0%;
    transition: all 0.3s ease;
    border-radius: 2px;
}

.strength-fill.weak {
    width: 33%;
    background: #ff4757;
}

.strength-fill.medium {
    width: 66%;
    background: #ffa502;
}

.strength-fill.strong {
    width: 100%;
    background: #2ed573;
}

.strength-text {
    font-size: 0.8rem;
    color: #666;
}

/* Form Options */
.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.checkbox-wrapper {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    font-size: 0.9rem;
    color: #666;
}

.checkbox-wrapper input[type="checkbox"] {
    display: none;
}

.checkmark {
    width: 18px;
    height: 18px;
    border: 2px solid rgba(102, 126, 234, 0.3);
    border-radius: 4px;
    position: relative;
    transition: all 0.3s ease;
}

.checkbox-wrapper input[type="checkbox"]:checked + .checkmark {
    background: #667eea;
    border-color: #667eea;
}

.checkbox-wrapper input[type="checkbox"]:checked + .checkmark::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-size: 0.7rem;
    font-weight: bold;
}

.forgot-password {
    color: #667eea;
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
}

.forgot-password:hover {
    text-decoration: underline;
}

/* Divider */
.divider {
    text-align: center;
    position: relative;
    margin: 1.5rem 0;
}

.divider::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 1px;
    background: rgba(102, 126, 234, 0.2);
}

.divider span {
    background: rgba(255, 255, 255, 0.95);
    padding: 0 1rem;
    color: #666;
    font-size: 0.9rem;
}

/* Social Auth */
.social-auth {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.btn-social {
    padding: 0.75rem 1rem;
    border: 2px solid rgba(102, 126, 234, 0.1);
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.8);
    color: #333;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    backdrop-filter: blur(10px);
}

.btn-social:hover {
    border-color: #667eea;
    background: rgba(255, 255, 255, 1);
    transform: translateY(-1px);
}

.btn-google i {
    color: #db4437;
}

.btn-github i {
    color: #333;
}

/* Auth Footer */
.auth-footer {
    text-align: center;
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(102, 126, 234, 0.1);
}

.auth-footer p {
    color: #666;
    font-size: 0.9rem;
}

.auth-footer a {
    color: #667eea;
    text-decoration: none;
    font-weight: 600;
}

.auth-footer a:hover {
    text-decoration: underline;
}

/* Auth Info */
.auth-info {
    color: white;
}

.info-content {
    max-width: 500px;
}

.info-content h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #ffffff, #f0f0f0);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.info-content p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    line-height: 1.7;
}

/* Benefits List */
.benefits-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 2rem;
}

.benefit-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1rem;
}

.benefit-item i {
    color: #2ed573;
    font-size: 1.2rem;
}

/* Feature Highlights */
.feature-highlights {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 2rem;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.feature-item i {
    font-size: 1.2rem;
    color: #667eea;
}

.feature-item span {
    font-weight: 500;
    font-size: 0.9rem;
}

/* Stats Preview */
.stats-preview {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.stat {
    text-align: center;
    padding: 1.5rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.stat-number {
    display: block;
    font-size: 1.8rem;
    font-weight: 700;
    color: #667eea;
    margin-bottom: 0.25rem;
}

.stat-label {
    font-size: 0.8rem;
    opacity: 0.8;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Links */
.link {
    color: #667eea;
    text-decoration: none;
    font-weight: 500;
}

.link:hover {
    text-decoration: underline;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .auth-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .auth-info {
        order: -1;
        text-align: center;
    }
    
    .info-content {
        max-width: 100%;
    }
    
    .feature-highlights {
        grid-template-columns: 1fr;
    }
    
    .stats-preview {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .auth-container {
        padding: 5rem 1rem 1rem;
    }
    
    .auth-card {
        padding: 2rem;
    }
    
    .auth-header h1 {
        font-size: 2rem;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .social-auth {
        grid-template-columns: 1fr;
    }
    
    .form-options {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .stats-preview {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .nav-container {
        padding: 0 1rem;
    }
    
    .info-content h2 {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .auth-card {
        padding: 1.5rem;
    }
    
    .auth-header h1 {
        font-size: 1.8rem;
    }
    
    .info-content h2 {
        font-size: 1.8rem;
    }
    
    .feature-highlights {
        grid-template-columns: 1fr;
    }
}

/* Loading States */
.btn-primary:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

/* Error States */
.input-wrapper.error input {
    border-color: #ff4757;
    box-shadow: 0 0 0 3px rgba(255, 71, 87, 0.1);
}

.error-message {
    color: #ff4757;
    font-size: 0.8rem;
    margin-top: 0.25rem;
}

/* Success States */
.input-wrapper.success input {
    border-color: #2ed573;
    box-shadow: 0 0 0 3px rgba(46, 213, 115, 0.1);
}

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

.auth-card {
    animation: fadeInUp 0.6s ease-out;
}

.auth-info {
    animation: fadeInUp 0.6s ease-out 0.2s both;
}