:root {
        --primary: #667eea;
        --secondary: #764ba2;
        --success: #00b894;
        --danger: #d63031;
        --dark: #2d3436;
        --light: #f8f9fa;
    }

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

    body {
        font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        background: linear-gradient(135deg, #1f2665 0%, #bd92e7 100%);
        min-height: 100vh;
        display: flex;
        align-items: center;
        justify-content: center;
        padding: 20px;
    }

    .login-container {
        background-image: url(../assets/img/download.png);
        border-radius: 20px;
        box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
        overflow: hidden;
        width: 100%;
        max-width: 1000px;
        display: grid;
        opacity: 0.8;
        grid-template-columns: 1fr 1fr;
    }

    .login-left {
        padding: 60px 40px;
        color: white;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        text-align: center;
    }

    .login-left i {
        font-size: 80px;
        margin-bottom: 30px;
        opacity: 0.9;
    }

    .login-left h2 {
        font-size: 32px;
        margin-bottom: 20px;
        font-weight: 700;
    }

    .login-left p {
        font-size: 16px;
        opacity: 0.9;
        line-height: 1.6;
    }

    .login-right {
        padding: 60px 40px;
    }

    .login-header {
        text-align: center;
        margin-bottom: 40px;
    }

    .login-header h3 {
        font-size: 28px;
        color: var(--light);
        margin-bottom: 10px;
    }

    .login-header p {
        color: #ffffff;
        font-size: 14px;
    }

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

    .form-label {
        display: block;
        margin-bottom: 8px;
        color: var(--light);
        font-weight: 600;
        font-size: 14px;
    }

    .form-control {
        width: 100%;
        padding: 14px 18px;
        border: 2px solid #e1e8ed;
        border-radius: 10px;
        font-size: 15px;
        transition: all 0.3s;
        background: #f8f9fa;
    }

    .form-control:focus {
        outline: none;
        border-color: var(--primary);
        background: white;
        box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
    }

    .input-group {
        position: relative;
    }

    .input-group i {
        position: absolute;
        left: 18px;
        top: 50%;
        transform: translateY(-50%);
        color: #636e72;
    }

    .input-group .form-control {
        padding-left: 48px;
    }

    .form-check {
        display: flex;
        align-items: center;
        gap: 10px;
    }

    .form-check input[type="checkbox"] {
        width: 18px;
        height: 18px;
        cursor: pointer;
    }

    .form-check label {
        cursor: pointer;
        color: #ffffff;
        font-size: 14px;
    }

    .btn-login {
        width: 100%;
        padding: 16px;
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        color: white;
        border: none;
        border-radius: 10px;
        font-size: 16px;
        font-weight: 600;
        cursor: pointer;
        transition: all 0.3s;
        margin-top: 10px;
    }

    .btn-login:hover {
        transform: translateY(-2px);
        box-shadow: 0 10px 25px rgba(102, 126, 234, 0.4);
    }

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

    .alert {
        padding: 15px 20px;
        border-radius: 10px;
        margin-bottom: 25px;
        display: flex;
        align-items: center;
        gap: 12px;
        font-size: 14px;
    }

    .alert-danger {
        background: #fff1f0;
        color: var(--danger);
        border: 1px solid #ffccc7;
    }

    .alert-success {
        background: #f0fff4;
        color: var(--success);
        border: 1px solid #b7eb8f;
    }

    .alert i {
        font-size: 18px;
    }

    .footer-links {
        margin-top: 25px;
        text-align: center;
    }

    .footer-links a {
        background: #eb1616;
        color: #ffffff;
        text-decoration: none;
        font-size: 14px;
        padding: 5px 10px;
        transition: color 0.3s;
        border-radius: 6px;
    }

    .footer-links a:hover {
        color: var(--light);
        background: #eb16169f;
        text-decoration: none;
    }

    @media (max-width: 768px) {
        .login-container {
            grid-template-columns: 1fr;
        }

        .login-left {
            padding: 40px 30px;
        }

        .login-left h2 {
            font-size: 24px;
        }

        .login-left i {
            font-size: 60px;
        }

        .login-right {
            padding: 40px 30px;
        }
    }

    .password-toggle {
        position: absolute;
        right: 18px;
        top: 50%;
        transform: translateY(-50%);
        cursor: pointer;
        color: #636e72;
        z-index: 10;
    }

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