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

:root {
    --bg-dark: #0a0a0f;
    --bg-darker: #050508;
    --panel-dark: #1a1a24;
    --panel-darker: #14141f;
    --text-primary: #ffffff;
    --text-secondary: #a0a0b0;
    --text-muted: #6b6b7a;
    --border-color: #2a2a35;
    --primary-blue: #3b82f6;
    --primary-blue-hover: #2563eb;
    --status-green: #10b981;
    --input-bg: #1f1f2e;
    --input-border: #3a3a4a;
    --input-focus: #4a4a5a;
}

.login-body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, var(--bg-darker) 0%, var(--bg-dark) 100%);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
.login-header {
    padding: 20px 40px;
    background-color: rgba(26, 26, 36, 0.5);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
}

.header-content {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-icon {
    display: flex;
    align-items: center;
    justify-content: center;
}

.header-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

.help-center-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background-color: var(--panel-dark);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 14px;
    cursor: pointer;
    transition: all 0.2s;
}

.help-center-btn:hover {
    background-color: var(--panel-darker);
    border-color: var(--primary-blue);
}

/* Main Container */
.login-container {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
}

.login-card {
    width: 100%;
    max-width: 1200px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    background-color: var(--panel-dark);
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

/* Left Panel - Information */
.login-info-panel {
    background: linear-gradient(135deg, var(--panel-darker) 0%, var(--panel-dark) 100%);
    padding: 60px 50px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    position: relative;
    overflow: hidden;
}

.login-info-panel::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.1) 0%, transparent 70%);
    border-radius: 50%;
}

.system-status {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 40px;
    font-size: 13px;
    color: var(--text-secondary);
}

.status-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--status-green);
    box-shadow: 0 0 8px var(--status-green);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.6;
    }
}

.info-title {
    font-size: 36px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 20px;
    line-height: 1.2;
}

.info-description {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 40px;
}

.info-icons {
    display: flex;
    gap: 20px;
    margin-top: auto;
}

.info-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: color 0.2s;
}

.info-icon:hover {
    color: var(--primary-blue);
}

/* Right Panel - Login Form */
.login-form-panel {
    background-color: var(--panel-dark);
    padding: 60px 50px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.form-container {
    width: 100%;
    max-width: 400px;
}

.form-title {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.form-subtitle {
    font-size: 15px;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.login-form {
    margin-bottom: 24px;
}

.form-group {
    margin-bottom: 24px;
}

.form-label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 8px;
}

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

.input-icon {
    position: absolute;
    left: 14px;
    color: var(--text-secondary);
    pointer-events: none;
    z-index: 1;
}

.form-input {
    width: 100%;
    padding: 12px 14px 12px 44px;
    background-color: var(--input-bg);
    border: 1px solid var(--input-border);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 15px;
    outline: none;
    transition: all 0.2s;
}

.form-input:focus {
    border-color: var(--primary-blue);
    background-color: var(--input-focus);
}

.form-input::placeholder {
    color: var(--text-muted);
}

.password-toggle {
    position: absolute;
    right: 14px;
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 4px;
    transition: color 0.2s;
}

.password-toggle:hover {
    color: var(--text-primary);
}

.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--text-primary);
    cursor: pointer;
}

.checkbox-input {
    width: 16px;
    height: 16px;
    accent-color: var(--primary-blue);
    cursor: pointer;
}

.forgot-password {
    font-size: 14px;
    color: var(--primary-blue);
    text-decoration: none;
    transition: color 0.2s;
}

.forgot-password:hover {
    color: var(--primary-blue-hover);
    text-decoration: underline;
}

.signin-btn {
    width: 100%;
    padding: 14px;
    background-color: var(--primary-blue);
    border: none;
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    margin-bottom: 24px;
}

.signin-btn:hover {
    background-color: var(--primary-blue-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.4);
}

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

.sso-info {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 24px;
}

.sso-line {
    flex: 1;
    height: 1px;
    background-color: var(--border-color);
}

.sso-info span {
    font-size: 12px;
    color: var(--text-muted);
    white-space: nowrap;
}

.copyright {
    text-align: center;
    font-size: 12px;
    color: var(--text-muted);
}

/* Responsive */
@media (max-width: 968px) {
    .login-card {
        grid-template-columns: 1fr;
        max-width: 500px;
    }

    .login-info-panel {
        padding: 40px 30px;
        min-height: 300px;
    }

    .info-title {
        font-size: 28px;
    }

    .info-icons {
        justify-content: center;
    }

    .login-form-panel {
        padding: 40px 30px;
    }
}

@media (max-width: 640px) {
    .login-header {
        padding: 16px 20px;
    }

    .header-title {
        font-size: 14px;
    }

    .help-center-btn span {
        display: none;
    }

    .login-container {
        padding: 20px 16px;
    }

    .login-info-panel,
    .login-form-panel {
        padding: 30px 24px;
    }

    .form-title {
        font-size: 24px;
    }
}