/* --- 1. DEFINIÇÃO DE VARIÁVEIS DE TEMA (MODO CLARO - PADRÃO) --- */
:root {
    --bg-body: #E0E5EC;
    --bg-keyboard: #D1D9E6;
    --bg-key: #E0E5EC;
    --bg-key-pressed: #c8d0db;
    --text-primary: #333a44;
    --text-secondary: #5a6678;
    --border-key: #caced4;
    --shadow-key-light: rgba(255, 255, 255, 0.7);
    --shadow-key-dark: rgba(163, 177, 198, 0.6);
    --modal-overlay: rgba(0, 0, 0, 0.6);
    --modal-bg: #FFFFFF;
    --modal-shadow: rgba(0, 0, 0, 0.2);
    --input-bg: #EEEEEE;
    --accent-color: #007AFF;
    --accent-color-hover: #0056b3;
    --danger-color: #E74C3C;
    --danger-color-hover: #C0392B;
    --icon-key-shadow: #FFF; /* Sombra da letra da tecla */
}

/* --- 2. VARIÁVEIS DO MODO ESCURO --- */
body.dark-mode {
    --bg-body: #1c1c1e;
    --bg-keyboard: #2c2c2e;
    --bg-key: #48484a;
    --bg-key-pressed: #3a3a3c;
    --text-primary: #E0E0E0;
    --text-secondary: #B0B0B0;
    --border-key: #3a3a3c;
    --shadow-key-light: rgba(255, 255, 255, 0.08);
    --shadow-key-dark: rgba(0, 0, 0, 0.5);
    --modal-overlay: rgba(0, 0, 0, 0.7);
    --modal-bg: #2C2C2E;
    --modal-shadow: rgba(0, 0, 0, 0.5);
    --input-bg: #3A3A3C;
    --accent-color: #0A84FF;
    --accent-color-hover: #0060df;
    --danger-color: #FF453A;
    --danger-color-hover: #D9362D;
    --icon-key-shadow: rgba(0,0,0,0.5);
}


/* --- 3. ESTILOS GERAIS --- */
* { box-sizing: border-box; }
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-body);
    color: var(--text-primary);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
    padding: 20px;
    transition: background-color 0.3s ease, color 0.3s ease;
}
.app-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 25px;
    width: 100%;
    max-width: 1000px;
}

/* --- 4. CABEÇALHO (TÍTULO E BOTÃO DE TEMA) --- */
.header-controls {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.program-title-container {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 20px;
    background-color: var(--bg-keyboard);
    border-radius: 12px;
    box-shadow: 4px 4px 8px var(--shadow-key-dark), -4px -4px 8px var(--shadow-key-light);
}
#program-title {
    font-size: 22px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
    padding: 5px 8px;
    border-radius: 5px;
    outline: none;
    transition: background-color 0.2s;
}
#program-title[contenteditable="true"] {
    background-color: var(--bg-body);
    box-shadow: inset 2px 2px 4px var(--shadow-key-dark), inset -2px -2px 4px var(--shadow-key-light);
}
.edit-btn {
    background: none; border: none; font-size: 20px;
    cursor: pointer; padding: 5px; border-radius: 50%;
    transition: background-color 0.2s; color: var(--text-secondary);
}
.edit-btn:hover { background-color: var(--bg-body); }

/* --- 5. BOTÃO DE TEMA --- */
.theme-toggle {
    background-color: var(--bg-keyboard);
    border: none; border-radius: 12px; padding: 10px 15px;
    cursor: pointer; font-size: 20px; overflow: hidden;
    position: relative; width: 55px; height: 44px;
    box-shadow: 4px 4px 8px var(--shadow-key-dark), -4px -4px 8px var(--shadow-key-light);
}
.theme-toggle:active {
    box-shadow: inset 4px 4px 8px var(--shadow-key-dark), inset -4px -4px 8px var(--shadow-key-light);
}
.theme-toggle .icon-moon { display: none; }
.theme-toggle .icon-sun { display: block; }
body.dark-mode .theme-toggle .icon-moon { display: block; }
body.dark-mode .theme-toggle .icon-sun { display: none; }

/* --- 6. TECLADO --- */
.keyboard-container {
    display: flex; flex-direction: column; gap: 10px;
    padding: 20px; background-color: var(--bg-keyboard);
    border-radius: 12px; width: 100%;
    box-shadow: 8px 8px 16px var(--shadow-key-dark), -8px -8px 16px var(--shadow-key-light);
}
.keyboard-row { display: flex; justify-content: center; gap: 10px; }
.key {
    display: flex; justify-content: center; align-items: center;
    font-size: 16px; font-weight: 600; color: var(--text-secondary);
    background-color: var(--bg-key);
    border: 1px solid var(--border-key);
    border-radius: 8px; min-width: 55px; height: 55px;
    padding: 5px; cursor: pointer; user-select: none;
    transition: all 0.1s ease-out; position: relative; overflow: hidden;
    box-shadow: 4px 4px 8px var(--shadow-key-dark), -4px -4px 8px var(--shadow-key-light);
}
.key.key-lg { width: 95px; }
.key.key-xl { width: 130px; }
.key.key-space { flex-grow: 1; min-width: 300px; }
.key.pressed {
    transform: scale(0.98);
    box-shadow: inset 4px 4px 8px var(--shadow-key-dark), inset -4px -4px 8px var(--shadow-key-light);
    background-color: var(--bg-key-pressed);
}

/* --- 7. LAYOUT INTERNO DA TECLA (LETRA + ÍCONE) --- */
.key-label {
    position: relative; z-index: 2;
    transition: all 0.2s ease-out; pointer-events: none;
}
.key-image {
    display: none; position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    object-fit: contain; padding: 12px;
    box-sizing: border-box; z-index: 1; pointer-events: none;
}
.key.key-has-image .key-image { display: block; }
.key.key-has-image .key-label {
    position: absolute; top: 4px; left: 6px;
    font-size: 11px; font-weight: bold;
    color: var(--text-primary);
    text-shadow: 0 0 3px var(--icon-key-shadow), 0 0 3px var(--icon-key-shadow);
}

/* --- 8. MODAL (JANELA DE EDIÇÃO) --- */
.modal-overlay {
    position: fixed; top: 0; left: 0;
    width: 100%; height: 100%;
    background: var(--modal-overlay);
    backdrop-filter: blur(5px);
    display: none; justify-content: center; align-items: center;
    z-index: 1000;
}
.modal-overlay.visible { display: flex; }
.modal-content {
    background: var(--modal-bg); color: var(--text-primary);
    padding: 25px; border-radius: 12px;
    box-shadow: 0 10px 30px var(--modal-shadow);
    width: 90%; max-width: 450px;
    display: flex; flex-direction: column; gap: 15px;
    /* Permite o modal crescer para o conteúdo de vídeo */
    max-height: 90vh;
    overflow-y: auto;
}
.modal-content h3 {
    margin: 0; font-size: 20px;
    border-bottom: 1px solid var(--border-key); padding-bottom: 10px;
}
.modal-content .form-group {
    display: flex; flex-direction: column; gap: 8px;
}
.modal-content label {
    font-weight: 600; font-size: 14px;
    color: var(--text-secondary);
}
.modal-content input[type="text"],
.modal-content textarea {
    width: 100%; padding: 12px;
    border: 1px solid var(--border-key); border-radius: 8px;
    font-size: 14px; box-sizing: border-box;
    background-color: var(--input-bg);
    color: var(--text-primary);
    transition: box-shadow 0.2s;
}
.modal-content input[type="text"]:focus,
.modal-content textarea:focus {
    outline: none;
    box-shadow: 0 0 0 2px var(--accent-color);
}
.modal-content textarea { min-height: 80px; resize: vertical; }
.modal-content .color-group {
    display: flex; align-items: center; gap: 10px;
    color: var(--text-secondary);
}
.modal-content input[type="color"] {
    width: 50px; height: 30px; padding: 0;
    border: 1px solid var(--border-key); border-radius: 4px;
    cursor: pointer;
}
.modal-preview {
    max-width: 100px; max-height: 100px;
    border: 1px solid var(--border-key); border-radius: 4px;
    object-fit: cover; background-color: var(--input-bg);
}

/* --- 9. NOVO: ESTILOS DA DEMO NO MODAL --- */
.demo-preview-container {
    width: 100%;
    aspect-ratio: 16 / 9; /* Proporção de vídeo */
    background-color: var(--input-bg);
    border-radius: 8px;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
    border: 1px solid var(--border-key);
}
.demo-preview-container img,
.demo-preview-container video,
.demo-preview-container iframe {
    width: 100%;
    height: 100%;
    object-fit: contain; /* Garante que a mídia caiba */
    border: none;
}

.demo-buttons {
    display: flex;
    gap: 10px;
    margin-top: 5px;
}

.demo-buttons .btn-upload,
.demo-buttons .btn-remove {
    padding: 8px 12px; border: none; border-radius: 8px;
    font-weight: 600; cursor: pointer; transition: all 0.2s;
    font-size: 13px;
    flex-grow: 1; /* Faz os botões dividirem o espaço */
}

.btn-upload {
    background-color: var(--accent-color);
    color: white;
}
.btn-upload:hover { background-color: var(--accent-color-hover); }

.btn-remove {
    background-color: var(--danger-color);
    color: white;
}
.btn-remove:hover { background-color: var(--danger-color-hover); }


/* --- 10. BOTÕES DO MODAL (SALVAR/FECHAR) --- */
.modal-buttons {
    display: flex; justify-content: flex-end;
    flex-wrap: wrap; gap: 10px; margin-top: 10px;
}
.modal-buttons button {
    padding: 10px 18px; border: none; border-radius: 8px;
    font-weight: 600; cursor: pointer; transition: all 0.2s;
    text-decoration: none; font-size: 14px;
}
.btn-close {
    background-color: var(--input-bg);
    color: var(--text-secondary);
}
.btn-close:hover {
    background-color: var(--bg-key-pressed);
    color: var(--text-primary);
}
.btn-save {
    background-color: var(--accent-color);
    color: white;
}
.btn-save:hover { background-color: var(--accent-color-hover); }