body {
    margin: 0;
    padding: 0;
    overflow-x: hidden;
}

.auth-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 20px;
}

.auth-background {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('/image/background.png') center/cover no-repeat;
    z-index: -1;
}

.auth-background::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    z-index: 1;
}

.auth-background::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(255, 204, 0, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(59, 130, 246, 0.05) 0%, transparent 50%);
    animation: pulse 8s ease-in-out infinite;
    z-index: 2;
}

@keyframes pulse {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

.auth-header {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    width: calc(100% - 80px);
    max-width: 1400px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 30px;
    background: rgba(10, 10, 10, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    z-index: 100;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.auth-logo img {
    width: 50px;
    height: 50px;
    transition: transform 0.3s;
}

.auth-logo:hover img {
    transform: scale(1.1);
}

.auth-nav {
    display: flex;
    gap: 20px;
}

.auth-nav-link {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    font-weight: 600;
    font-size: 14px;
    padding: 8px 16px;
    border-radius: 8px;
    transition: all 0.3s;
}

.auth-nav-link:hover {
    color: #3b82f6;
    background: rgba(59, 130, 246, 0.1);
}

.auth-box {
    width: 100%;
    max-width: 450px;
    margin-top: 80px;
    background: rgba(22, 22, 22, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius, 12px);
    padding: 40px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.auth-content {
    width: 100%;
}

.auth-title {
    font-family: 'Orbitron', sans-serif;
    font-size: 32px;
    font-weight: 900;
    color: #fff;
    text-align: center;
    margin-bottom: 10px;
    letter-spacing: 2px;
}

.auth-subtitle {
    color: rgba(255, 255, 255, 0.6);
    text-align: center;
    font-size: 14px;
    margin-bottom: 35px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

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

.form-group label {
    color: rgba(255, 255, 255, 0.9);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 1px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.form-group label i {
    color: #3b82f6;
}

.form-input {
    width: 100%;
    padding: 14px 18px;
    background: rgba(0, 0, 0, 0.4);
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    color: #fff;
    font-size: 15px;
    font-family: 'Rajdhani', sans-serif;
    transition: all 0.3s;
}

.form-input:focus {
    outline: none;
    border-color: #3b82f6;
    background: rgba(0, 0, 0, 0.6);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.form-input::placeholder {
    color: rgba(255, 255, 255, 0.3);
}

.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 5px;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 8px;
    color: rgba(255, 255, 255, 0.8);
    font-size: 13px;
    cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: #3b82f6;
}

.forgot-link {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    font-size: 13px;
    transition: color 0.3s;
}

.forgot-link:hover {
    color: #3b82f6;
}

.btn-submit {
    width: 100%;
    padding: 16px;
    background: linear-gradient(135deg, #3b82f6, #2563eb);
    color: #fff;
    border: none;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 700;
    font-family: 'Rajdhani', sans-serif;
    letter-spacing: 1px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-top: 10px;
    transition: all 0.3s;
}

.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.5);
}

.auth-footer {
    margin-top: 25px;
    padding-top: 25px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.auth-footer p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 14px;
}

.register-link {
    color: #3b82f6;
    text-decoration: none;
    font-weight: 700;
    transition: color 0.3s;
}

.register-link:hover {
    color: #2563eb;
}

@media (max-width: 768px) {
    .auth-header {
        width: calc(100% - 40px);
        padding: 12px 20px;
    }
    
    .auth-logo img {
        width: 40px;
        height: 40px;
    }
    
    .auth-nav {
        gap: 12px;
    }
    
    .auth-nav-link {
        font-size: 13px;
        padding: 6px 12px;
    }
    
    .auth-box {
        padding: 30px 25px;
        margin-top: 100px;
    }
    
    .auth-title {
        font-size: 26px;
    }
    
    .auth-subtitle {
        font-size: 13px;
    }
    
    .form-options {
        flex-direction: column;
        gap: 12px;
        align-items: flex-start;
    }
}

@media (max-width: 480px) {
    .auth-container {
        padding: 15px;
    }
    
    .auth-header {
        width: calc(100% - 30px);
        padding: 10px 15px;
    }
    
    .auth-box {
        padding: 25px 20px;
    }
    
    .auth-title {
        font-size: 22px;
    }
}

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

.password-input-wrapper .form-input {
    padding-right: 50px;
}

.toggle-password {
    position: absolute;
    right: 14px;
    background: transparent;
    border: none;
    color: rgba(255, 255, 255, 0.4);
    cursor: pointer;
    padding: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color 0.3s;
    font-size: 16px;
    line-height: 1;
}

.toggle-password:hover {
    color: #3b82f6;
}

.password-strength {
    display: flex;
    flex-direction: column;
    gap: 5px;
    margin-top: 4px;
}

.strength-bar {
    height: 4px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 2px;
    overflow: hidden;
}

.strength-bar-fill {
    height: 100%;
    width: 0%;
    border-radius: 2px;
    transition: all 0.3s;
    background: #ff4444;
}

.strength-bar-fill.weak { background: #ff4444; }
.strength-bar-fill.medium { background: #ff9900; }
.strength-bar-fill.strong { background: #00ff88; }

.strength-text {
    font-size: 11px;
    color: rgba(255, 255, 255, 0.5);
}

.strength-text.weak { color: #ff4444; }
.strength-text.medium { color: #ff9900; }
.strength-text.strong { color: #00ff88; }

.alert {
    padding: 12px 16px;
    border-radius: 10px;
    margin-bottom: 20px;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.alert-error {
    background: rgba(255, 68, 68, 0.15);
    border: 1px solid rgba(255, 68, 68, 0.3);
    color: #ff6b6b;
}

.alert-success {
    background: rgba(0, 255, 136, 0.1);
    border: 1px solid rgba(0, 255, 136, 0.3);
    color: #00ff88;
}

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    padding: 20px;
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: rgba(22, 22, 22, 0.98);
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius, 12px);
    width: 100%;
    max-width: 600px;
    max-height: 85vh;
    display: flex;
    flex-direction: column;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.8);
    overflow: hidden;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 25px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    flex-shrink: 0;
}

.modal-header h2 {
    font-family: 'Orbitron', sans-serif;
    color: #fff;
    font-size: 18px;
    margin: 0;
}

.modal-close {
    background: transparent;
    border: none;
    color: rgba(255, 255, 255, 0.6);
    cursor: pointer;
    width: 32px;
    height: 32px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    transition: all 0.3s;
}

.modal-close:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
}

.modal-body {
    padding: 25px;
    overflow-y: auto;
    flex: 1;
}

.modal-footer {
    padding: 15px 25px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    flex-direction: column;
    gap: 10px;
    align-items: center;
    flex-shrink: 0;
}

.scroll-indicator {
    color: rgba(255, 255, 255, 0.5);
    font-size: 13px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.btn-accept-terms {
    width: 100%;
    padding: 12px;
    background: linear-gradient(135deg, #3b82f6, #2563eb);
    color: #fff;
    border: none;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 700;
    font-family: 'Rajdhani', sans-serif;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all 0.3s;
}

.btn-accept-terms:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.btn-accept-terms:not(:disabled):hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.5);
}

.terms-text {
    color: rgba(255, 255, 255, 0.8);
    font-size: 14px;
    line-height: 1.7;
}

.terms-text h3 {
    color: #3b82f6;
    font-family: 'Orbitron', sans-serif;
    font-size: 13px;
    margin: 20px 0 8px 0;
}

.terms-text h3:first-child {
    margin-top: 0;
}

.terms-text p {
    margin-bottom: 10px;
}

.terms-text ul {
    padding-left: 20px;
    margin-bottom: 10px;
}

.terms-text ul li {
    margin-bottom: 4px;
}

.terms-link {
    color: #3b82f6;
    text-decoration: none;
}

.terms-link:hover {
    color: #2563eb;
}