/* ========================================
   RESPONSIVIDADE - NEXUS Batalha de Bots
   ======================================== */

/* Desktop Large (1200px+) */
@media (min-width: 1200px) {
    .container {
        max-width: 1200px;
    }
}

/* Desktop (992px - 1199px) */
@media (max-width: 1199px) and (min-width: 992px) {
    .container {
        max-width: 960px;
        padding: 0 var(--spacing-lg);
    }
}

/* Tablet Large (768px - 991px) */
@media (max-width: 991px) and (min-width: 768px) {
    .container {
        max-width: 720px;
        padding: 0 var(--spacing-md);
    }

    /* Simulador: prioriza chat no topo e fluxo vertical em telas médias */
    .main-layout {
        flex-direction: column;
        height: auto;
        gap: var(--spacing-md);
    }

    .right-panel {
        order: 1;
        height: auto;
        min-height: 50vh;
    }

    .left-panel {
        order: 2;
        height: auto;
    }

    .header-content {
        padding: 0 var(--spacing-md);
    }

    .brand-name {
        font-size: 2.2rem;
    }

    .card-header h2 {
        font-size: 2.2rem;
    }

    .button-group {
        gap: var(--spacing-sm);
    }
}

/* Tablet (768px) */
@media (max-width: 768px) {
    .container {
        padding: 0 2.5%;
    }

    /* Escopo apenas para landing page; simulador usa bbots.css específico */
    .header:not(.simulator-header) .header-content {
        flex-direction: column;
        gap: var(--spacing-sm);
        text-align: center;
        padding: 0 2.5%;
    }

    .main-content {
        margin-top: 95px; /* Reduzido para header compacto */
    }

    /* Título "Batalha de Bots" ocupa 90% da largura e centraliza */
    .simulator-header .battle-title {
        text-align: center;
    }
    .simulator-header .battle-title .title-main {
        display: block;
        max-width: 90%;
        margin: 0 auto;
        font-size: clamp(1.6rem, 9vw, 3rem);
        line-height: 1.05;
    }

    /* Botão "Acessar Simulador" com largura do texto e espaçamento lateral dobrado */
    .simulator-header .header-right .nexus-btn {
        display: inline-block;
        width: auto;
        padding: 0.6em 2em;
        white-space: nowrap;
    }

    /* Logo ocupa 50% de largura no responsivo */
    .simulator-header .logo img {
        width: 80%;
        height: auto;
    }

    /* Estrutura do simulador: melhora usabilidade no mobile */
    .main-layout {
        flex-direction: column;
        height: auto;
        gap: var(--spacing-md);
    }

    .right-panel-body {
        display: flex;
        flex-direction: column;
    }

    .token-counter-bar {
        position: sticky;
        top: 0;
        z-index: 3;
    }

    .token-counter-content {
        flex-wrap: wrap;
        row-gap: var(--spacing-xs);
    }

    .chat-area {
        flex: 1;
        min-height: 50vh;
        background-image: none;
    }

    .chat-input-area {
        position: sticky;
        bottom: 0;
        z-index: 3;
        padding-bottom: calc(var(--spacing-sm) + env(safe-area-inset-bottom));
    }

    .message-content {
        max-width: 92%;
        word-break: break-word;
        overflow-wrap: anywhere;
    }

    #datasets-container .form-check-label {
        white-space: normal;
        word-break: break-word;
    }

    .card-body {
        padding: var(--spacing-lg);
    }

    .card-header h2 {
        font-size: 2rem;
    }

    .button-group {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .button-group .btn {
        min-width: auto;
        width: 100%;
    }

    .brand-name {
        font-size: 2.5rem;
    }

    .challenge-title {
        font-size: 1rem;
    }

    .logo {
        width: 45px;
        height: 45px;
        font-size: 1.6rem;
    }

    .footer-content {
        padding: 0 2.5%;
        font-size: 1rem;
    }
}

/* Mobile Large (576px - 767px) */
@media (max-width: 767px) and (min-width: 576px) {
    .container {
        padding: 0 3%;
    }

    .card-body {
        padding: var(--spacing-md);
    }

    .form-control {
        font-size: 1.1rem;
    }

    .btn {
        font-size: 1.1rem;
        padding: var(--spacing-sm) var(--spacing-md);
    }
}

/* Mobile (480px - 575px) */
@media (max-width: 575px) and (min-width: 481px) {
    .container {
        padding: 0 4%;
    }

    .brand-name {
        font-size: 2.2rem;
    }

    .card-header h2 {
        font-size: 1.9rem;
    }
}

/* Mobile Small (480px) */
@media (max-width: 480px) {
    .container {
        padding: 0 2.5%;
    }

    .header-content {
        padding: 0 2.5%;
    }

    .main-content {
        margin-top: 115px; /* Reduzido para header compacto */
        padding: var(--spacing-md) 0;
    }

    .simulator-header .battle-title .title-main {
        max-width: 90%;
        font-size: clamp(1.5rem, 10vw, 2.6rem);
    }

    .simulator-header .header-right .nexus-btn {
        padding: 0.6em 2.2em;
        font-size: 1rem;
    }

    .message-content {
        max-width: 96%;
        font-size: 0.9rem;
    }

    .chat-input {
        font-size: 0.95rem;
    }

    .chat-send-btn {
        width: 44px;
        height: 44px;
    }

    .card-body {
        padding: var(--spacing-md);
    }

    .card-header h2 {
        font-size: 1.8rem;
        line-height: 1.2;
    }

    .brand-name {
        font-size: 2rem;
    }

    .challenge-title {
        font-size: 0.9rem;
    }

    .logo {
        width: 40px;
        height: 40px;
        font-size: 1.4rem;
    }

    .status-indicator {
        font-size: 0.8rem;
        padding: var(--spacing-xs);
    }

    .btn {
        padding: var(--spacing-xs) var(--spacing-md);
        font-size: 1.1rem;
        border-radius: var(--border-radius-lg);
    }

    .form-control {
        padding: var(--spacing-xs) var(--spacing-sm);
        font-size: 1.1rem;
    }

    .form-label {
        font-size: 1.1rem;
    }

    .alert {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: 1rem;
    }

    .briefing-content {
        padding: var(--spacing-md);
        font-size: 1rem;
    }

    .footer {
        padding: var(--spacing-md) 0;
    }

    .footer-content {
        padding: 0 2.5%;
        font-size: 0.9rem;
    }

    .loading {
        padding: var(--spacing-lg);
    }

    .spinner {
        width: 40px;
        height: 40px;
    }
}

/* Mobile Extra Small (320px - 479px) */
@media (max-width: 479px) and (min-width: 321px) {
    .container {
        padding: 0 3%;
    }

    .brand-name {
        font-size: 1.8rem;
    }

    .card-header h2 {
        font-size: 1.6rem;
    }

    .btn {
        font-size: 1rem;
    }
}

/* Mobile Extra Small (320px) */
@media (max-width: 320px) {
    .container {
        padding: 0 4%;
    }

    .brand-name {
        font-size: 1.6rem;
    }

    .challenge-title {
        font-size: 0.8rem;
    }

    .logo {
        width: 35px;
        height: 35px;
        font-size: 1.2rem;
    }

    .card-header h2 {
        font-size: 1.5rem;
    }

    .btn {
        padding: var(--spacing-xs);
        font-size: 0.9rem;
    }

    .form-control {
        font-size: 1rem;
    }

    .footer-content {
        font-size: 0.8rem;
    }
}

/* Landscape Orientation */
@media (max-height: 500px) and (orientation: landscape) {
    .header {
        padding: var(--spacing-xs) 0;
    }

    .main-content {
        margin-top: 80px;
        margin-bottom: 80px;
        padding: var(--spacing-sm) 0;
    }

    .footer {
        padding: var(--spacing-sm) 0;
    }

    .card-body {
        padding: var(--spacing-md);
    }

    .button-group {
        gap: var(--spacing-sm);
    }
}

/* High DPI Displays */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .logo img {
        image-rendering: -webkit-optimize-contrast;
        image-rendering: crisp-edges;
    }
}

/* Print Styles */
@media print {
    .header,
    .footer,
    .btn,
    .loading {
        display: none !important;
    }

    .main-content {
        margin: 0;
        padding: 0;
    }

    .card {
        box-shadow: none;
        border: 1px solid #ccc;
    }

    .briefing-content {
        background: white;
        border: 1px solid #ccc;
    }
}