:root {
    --primary-color: #00ff00;
    --background-color: #000000;
    --gradient-color: #008000;
    --text-color: #ffffff;
    --border-radius: 24px;
    --container-width: min(1200px, 90vw);
    --container-height: min(600px, 80vh);
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --font-size-sm: 16px;
    --font-size-md: 24px;
    --font-size-lg: 32px;
    --font-size-xl: 72px;
    --shadow: 4px 4px 20px 0px rgba(1, 8, 14, 0.15);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    color: var(--text-color);
}

html {
    background-color: var(--background-color);
}

body {
    background: linear-gradient(var(--gradient-color) 0%, var(--background-color) 33.33%, var(--background-color) 66.67%, var(--background-color) 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Inter', sans-serif;
    padding: var(--spacing-md);
}

body::before {
    background-image: url("img/code.png");
    background-repeat: no-repeat;
    background-position: right;
    content: "";
    display: block;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.4;
    pointer-events: none;
    z-index: -1;
}

.container {
    width: var(--container-width);
    height: var(--container-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-radius: var(--border-radius);
    border: 1px solid var(--primary-color);
    box-shadow: var(--shadow);
    background-image: url("img/Ruido.png");
    background-size: 100% 100%;
    position: relative;
    overflow: hidden;
}

.container__conteudo {
    display: flex;
    align-items: center;
    width: 100%;
    height: 100%;
    padding: var(--spacing-lg);
    gap: var(--spacing-lg);
}

.container__imagem-robo {
    width: 50%;
    max-width: 300px;
    height: auto;
    object-fit: contain;
}

.container__informacoes {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
}

.container__jogo {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.container__vitoria {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: var(--spacing-md);
}

.container__vitoria img {
    width: 80px;
    height: 80px;
}

.hidden {
    display: none !important;
}

.container__form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.container__input {
    border-radius: var(--spacing-md);
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 2px solid var(--primary-color);
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: var(--font-size-md);
    font-weight: 400;
    color: var(--text-color);
    transition: all 0.3s ease;
}

.container__input:focus {
    outline: none;
    border-color: var(--text-color);
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.container__input::placeholder {
    color: rgba(255, 255, 255, 0.7);
}

.container__botao {
    border-radius: var(--spacing-md);
    background: var(--primary-color);
    padding: var(--spacing-md) var(--spacing-lg);
    width: 100%;
    font-size: var(--font-size-md);
    font-weight: 700;
    border: none;
    color: var(--background-color);
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: 'Inter', sans-serif;
}

.container__botao:hover {
    background: var(--text-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 255, 0, 0.3);
}

.container__botao:active {
    transform: translateY(0);
}

.container__botao:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.container__texto {
    margin: var(--spacing-md) 0;
}

.container__texto-azul {
    color: var(--primary-color);
}

.container__instrucoes {
    font-size: var(--font-size-sm);
    opacity: 0.9;
    line-height: 1.5;
}

.container__feedback {
    font-size: var(--font-size-sm);
    font-weight: 500;
    text-align: center;
    padding: var(--spacing-sm);
    border-radius: var(--spacing-sm);
    min-height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.container__feedback.success {
    background: rgba(0, 255, 0, 0.2);
    border: 1px solid var(--primary-color);
}

.container__feedback.error {
    background: rgba(255, 0, 0, 0.2);
    border: 1px solid #ff0000;
    color: #ff6666;
}

.container__feedback.hint {
    background: rgba(255, 255, 0, 0.2);
    border: 1px solid #ffff00;
    color: #ffff99;
}

.container__tentativas {
    font-size: var(--font-size-sm);
    text-align: center;
    opacity: 0.8;
}

h1 {
    font-family: 'Chakra Petch', sans-serif;
    font-size: clamp(2rem, 5vw, var(--font-size-xl));
    line-height: 1.2;
}

h2, p, button {
    font-family: 'Inter', sans-serif;
}

h2 {
    font-size: clamp(1.2rem, 3vw, var(--font-size-lg));
    font-weight: 400;
    line-height: 1.3;
}

/* Responsive Design */
@media screen and (max-width: 768px) {
    :root {
        --container-width: 95vw;
        --container-height: auto;
        --spacing-md: 12px;
        --spacing-lg: 16px;
        --font-size-md: 20px;
    }

    .container {
        min-height: 80vh;
        height: auto;
    }

    .container__conteudo {
        flex-direction: column;
        padding: var(--spacing-md);
    }

    .container__imagem-robo {
        width: 60%;
        max-width: 200px;
    }

    .container__informacoes {
        width: 100%;
        padding: var(--spacing-md);
    }

    body::before {
        background-size: cover;
        background-position: center;
    }
}

@media screen and (max-width: 480px) {
    :root {
        --container-width: 100vw;
        --border-radius: 0;
        --spacing-md: 8px;
        --spacing-lg: 12px;
        --font-size-md: 18px;
    }

    body {
        padding: 0;
    }

    .container {
        border-radius: 0;
        border-left: none;
        border-right: none;
        min-height: 100vh;
        height: auto;
    }

    .container__imagem-robo {
        width: 50%;
        max-width: 150px;
    }
}

/* Focus and accessibility improvements */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

.container__input:invalid {
    border-color: #ff0000;
}

.container__input:valid {
    border-color: var(--primary-color);
}