:root {
        --deep-purple: #4CAF50;
        --black: #121212;
        --white: #e0e0e0;
        --gray-light: #1e1e1e;
        --gray-medium: #444;
        --gradient-purple: linear-gradient(45deg, var(--deep-purple), #45a049);
        --gradient-tech: linear-gradient(135deg, #0f0c29, #302b63, #24243e);
    }

    * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
        font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    }

    body {
        display: flex;
        justify-content: center;
        align-items: center;
        min-height: 100vh;
        background: var(--gradient-tech);
        background-size: cover;
        background-position: center;
        position: relative;
        overflow: hidden;
    }

    .floating-particles {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        pointer-events: none;
        z-index: -1;
    }

    .particle {
        position: absolute;
        background: rgba(76, 175, 80, 0.15);
        border-radius: 50%;
        animation: float 15s infinite linear;
    }

    @keyframes float {
        0% {
            transform: translateY(0) translateX(0) rotate(0deg);
            opacity: 0;
        }
        10% {
            opacity: 1;
        }
        90% {
            opacity: 1;
        }
        100% {
            transform: translateY(-100vh) translateX(100vw) rotate(360deg);
            opacity: 0;
        }
    }

    .login-container {
        width: 100%;
        max-width: 450px;
        padding: 30px;
        background: rgba(18, 18, 18, 0.85);
        border-radius: 16px;
        box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
        border: 1px solid rgba(76, 175, 80, 0.1);
        animation: fadeIn 0.8s ease;
        position: relative;
        overflow: hidden;
    }

    .login-container::before {
        content: '';
        position: absolute;
        top: -50%;
        left: -50%;
        width: 200%;
        height: 200%;
        background: radial-gradient(circle, rgba(76, 175, 80, 0.1) 0%, transparent 70%);
        transform: rotate(30deg);
        z-index: -1;
    }

    .logo-area {
        text-align: center;
        margin-bottom: 30px;
    }

    .logo-area h1 {
        font-size: 28px;
        color: var(--white);
        margin-bottom: 10px;
        background: -webkit-linear-gradient(#00ffcc, #00bfa5);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
    }

    .logo-area p {
        color: #ccc;
        font-size: 14px;
    }

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

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

    .form-group i {
        position: absolute;
        left: 15px;
        top: 50%;
        transform: translateY(-50%);
        color: var(--deep-purple);
        font-size: 18px;
    }

    .form-input {
        width: 100%;
        padding: 15px 15px 15px 45px;
        border: none;
        border-radius: 8px;
        background: rgba(30, 30, 30, 0.7);
        color: var(--white);
        font-size: 16px;
        border: 1px solid rgba(76, 175, 80, 0.2);
        transition: all 0.3s ease;
    }

    .form-input:focus {
        outline: none;
        border-color: var(--deep-purple);
        box-shadow: 0 0 0 2px rgba(76, 175, 80, 0.2);
    }

    .form-input::placeholder {
        color: #888;
    }

    .btn-login {
        width: 100%;
        padding: 15px;
        border: none;
        border-radius: 8px;
        background: var(--gradient-purple);
        color: white;
        font-size: 16px;
        font-weight: 600;
        cursor: pointer;
        transition: all 0.3s ease;
        box-shadow: 0 4px 15px rgba(76, 175, 80, 0.3);
    }

    .btn-login:hover {
        transform: translateY(-2px);
        box-shadow: 0 6px 20px rgba(76, 175, 80, 0.4);
    }

    .login-links {
        display: flex;
        justify-content: space-between;
        align-items: center;
        margin-top: 20px;
        flex-wrap: wrap;
        gap: 10px;
    }

    .link-btn {
        padding: 12px 20px;
        border-radius: 8px;
        text-decoration: none;
        font-size: 14px;
        transition: all 0.3s ease;
        display: flex;
        align-items: center;
        gap: 8px;
    }

    .btn-inicio {
        background: rgba(30, 30, 30, 0.7);
        color: var(--white);
        border: 1px solid rgba(76, 175, 80, 0.2);
    }

    .btn-inicio:hover {
        background: rgba(76, 175, 80, 0.1);
        border-color: var(--deep-purple);
    }

    .btn-register {
        background: rgba(76, 175, 80, 0.1);
        color: var(--deep-purple);
        border: 1px solid rgba(76, 175, 80, 0.3);
    }

    .btn-register:hover {
        background: rgba(76, 175, 80, 0.2);
    }

    .security-note {
        margin-top: 30px;
        padding: 15px;
        background: rgba(76, 175, 80, 0.1);
        border-radius: 8px;
        text-align: center;
        font-size: 12px;
        color: #ccc;
        border-left: 3px solid var(--deep-purple);
    }

    .security-note i {
        color: var(--deep-purple);
        margin-right: 5px;
    }

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

    @media (max-width: 500px) {
        .login-container {
            padding: 20px;
            margin: 0 15px;
        }
        
        .login-links {
            flex-direction: column;
            align-items: stretch;
        }
        
        .link-btn {
            justify-content: center;
        }
    }