:root {
    --bg-dark: #0d0d0d;
    --panel-bg: #1a1a1a;
    --accent-green: #39ff14;
    --accent-amber: #ffb000;
    --text-main: #e0e0e0;
    --text-dim: #888;
/*    --font-mono: 'Share Tech Mono', monospace;
    --font-sans: 'Roboto', sans-serif;*/

    --font-mono: "JetBrains Mono", system-ui;    
    --font-mono: "JetBrains Mono", system-ui;
}

.jetbrains-mono-<uniquifier> {
  font-family: "JetBrains Mono", monospace;
  font-optical-sizing: auto;
  font-weight: <weight>;
  font-style: normal;
}

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

/* =========================================
   1. REGLAS GLOBALES (HTML Y BODY)
   ========================================= */
html, body {
    /* Reset básico */
    margin: 0;
    padding: 0;
    max-width: 100%;
    
    /* Bloquea scroll horizontal y rebotes */
    overflow-x: hidden;
    touch-action: pan-y; /* Solo scroll vertical */
    overscroll-behavior: none; /* Sin efecto goma/rebote */
}

/* =========================================
   2. ESTILOS DEL BODY (LAYOUT Y TEMA)
   ========================================= */
body {
    /* Colores y tipografía */
    background-color: var(--bg-dark);
    color: var(--text-main);
    font-family: var(--font-sans);
    
    /* Layout flex para pie de página sticky, etc. */
    display: flex;
    flex-direction: column;
    
    /* ¡CAMBIO CLAVE! dvh en lugar de vh para la barra de direcciones */
    min-height: 100dvh; 
    
    /* Elimina el flash azul/oscuro al tocar en móviles */
    -webkit-tap-highlight-color: transparent;

    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    -webkit-touch-callout: none; /* Evita el menú contextual de iOS */    
}

/* La pantalla de carga ocupa toda la pantalla y está por encima de todo */
#splash-screen {
    position: fixed;
    inset: 0; /* top:0, right:0, bottom:0, left:0 */
    background-color: var(--bg-dark);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity 0.4s ease-out;
}

/* La app empieza oculta y sin transiciones para evitar parpadeos */
.hidden {
    display: none;
    opacity: 0;
}

/* Cuando esté lista, la mostramos suavemente */
#app-content.ready {
    display: flex; /* O el display que uses */
    opacity: 1;
    transition: opacity 0.4s ease-in;
}

/* Ocultamos el splash screen */
#splash-screen.fade-out {
    opacity: 0;
    pointer-events: none; /* Evita clics fantasma */
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    border-bottom: 1px solid #333;
    background: #111;
}

h1,h2 { font-family: var(--font-mono); color: var(--accent-green); letter-spacing: 2px; }

.icon-btn {
    background: none; border: none; font-size: 1.5rem; cursor: pointer;
    transition: transform 0.2s;
}
.icon-btn:hover { transform: rotate(90deg); }

/* Settings Panel */
.panel {
    position: fixed; top: 0; right: 0; width: 300px; height: 100%;
    background: var(--panel-bg); padding: 2rem; z-index: 100;
    box-shadow: -5px 0 15px rgba(0,0,0,0.5);
    transition: transform 0.3s ease;
    border-left: 2px solid var(--accent-green);
}
.panel.hidden { transform: translateX(100%); }
.setting-group { margin-bottom: 1.5rem; }
label { display: block; margin-bottom: 0.5rem; font-family: var(--font-mono); color: var(--accent-amber); }
input[type="range"] { width: 100%; accent-color: var(--accent-green); }

/* Tabs */
.tabs { display: flex; border-bottom: 2px solid #333; }
.tab-btn {
    flex: 1; padding: 1rem; background: transparent; border: none;
    color: var(--text-dim); font-family: var(--font-mono); font-size: 1.1rem;
    cursor: pointer; transition: all 0.3s; text-transform:uppercase;
}
.tab-btn.active { color: var(--accent-green); border-bottom: 2px solid var(--accent-green); margin-bottom: -2px; }

.tab-content { display: none; flex: 1; padding: 2rem; }
.tab-content.active { display: flex; flex-direction: column; align-items: center; }

/* Module 1: Key */
.key-container { display: flex; flex-direction: column; align-items: center; gap: 1.5rem; width: 100%; max-width: 600px; }
.buffer-box, .decoded-box {
    width: 100%; min-height: 60px; padding: 1rem;
    background: #000; border: 1px solid #333; border-radius: 4px;
    font-family: var(--font-mono); font-size: 1.5rem; color: var(--accent-green);
    text-align: center; word-break: break-all;
    box-shadow: inset 0 0 10px rgba(57, 255, 20, 0.1);
}
#key-buffer {
    padding: 10px;
}
.decoded-box { color: var(--accent-amber); min-height: 80px; font-size: 1.2rem; text-align: left; }

.key-button {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: radial-gradient(circle, #333 0%, #111 100%);
    border: 4px solid #444;
    color: var(--text-dim);
    font-family: var(--font-mono);
    font-size: 1.2rem;
    cursor: pointer;
    transition: all 0.1s;
    box-shadow: 0 10px 20px rgba(0,0,0,0.5), inset 0 -5px 10px rgba(0,0,0,0.5);

    /* === BLOQUEO TOTAL DE GESTOS DE iOS === */
    -webkit-user-select: none;
    user-select: none;
    -webkit-touch-callout: none;        /* ← Bloquea el menú contextual */
    -webkit-tap-highlight-color: transparent;
    touch-action: none;                  /* ← CAMBIO CLAVE: de 'manipulation' a 'none' */
}
.key-button.active {
    background: radial-gradient(circle, #444 0%, #222 100%);
    border-color: var(--accent-green);
    color: var(--accent-green);
    transform: scale(0.95);
    box-shadow: 0 0 30px var(--accent-green), inset 0 0 20px rgba(57, 255, 20, 0.2);
}
.clear-btn, .close-settings {
    background: transparent;
    border: 1px solid #444;
    color: var(--text-dim);
    font-family: var(--font-mono);
    font-size: 0.85rem;
    padding: 0.4rem 1rem;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.2s ease;
    letter-spacing: 1px;
    align-self: flex-end; /* Lo alinea a la derecha dentro del flex-column */
    margin-top: -0.5rem;
}
.clear-btn:hover {
    border-color: #ff3333;
    color: #ff3333;
    background: rgba(255, 51, 51, 0.05);
}
.clear-btn:active {
    transform: scale(0.95);
}

/* Module 2: Player */
.player-container { width: 100%; max-width: 600px; display: flex; flex-direction: column; gap: 1.5rem; }
textarea {
    width: 100%; padding: 1rem; background: #000; border: 1px solid #333;
    color: var(--text-main); font-family: var(--font-mono); font-size: 1rem;
    resize: vertical; border-radius: 4px;
}
.player-controls { 
    display: flex; 
    gap: 1rem; 
    justify-content: center;
    flex-wrap: wrap; /* Permite que los botones bajen de línea */
}
.action-btn {
    padding: 0.8rem 2rem; 
    font-family: var(--font-mono); 
    font-size: 1.1rem;
    background: var(--panel-bg); 
    border: 2px solid var(--accent-green); 
    color: var(--accent-green);
    cursor: pointer; 
    border-radius: 4px; 
    transition: all 0.2s;
    flex: 1 1 auto; /* Los botones se expanden pero pueden encogerse */
    min-width: 120px; /* Ancho mínimo para touch */
    text-transform:uppercase;
}
.action-btn:hover:not(:disabled) { background: var(--accent-green); color: #000; }
.action-btn.stop { border-color: #ff3333; color: #ff3333; }
.action-btn.stop:hover:not(:disabled) { background: #ff3333; color: #000; }
.action-btn:disabled { opacity: 0.5; cursor: not-allowed; }

.visualizer-box {
    width: 100%; min-height: 100px; padding: 2rem;
    background: #000; border: 2px solid var(--accent-amber); border-radius: 4px;
    font-family: var(--font-mono); font-size: 3rem; color: var(--accent-amber);
    text-align: center; letter-spacing: 10px;
    box-shadow: inset 0 0 20px rgba(255, 176, 0, 0.1);
}

.action-btn.download {
    border-color: var(--accent-amber);
    color: var(--accent-amber);
}
.action-btn.download:hover:not(:disabled) {
    background: var(--accent-amber);
    color: #000;
}

.action-btn.clear {
    border-color: #ff3333;
    color: #ff3333;
}
.action-btn.clear:hover:not(:disabled) {
    background: #ff3333;
    color: #000;
}

textarea, input[type="text"], input[type="number"] {
    -webkit-user-select: text;
    -moz-user-select: text;
    -ms-user-select: text;
    user-select: text;
    -webkit-touch-callout: default;
}

textarea {
    width: 100%; 
    padding: 1rem; 
    background: #000; 
    border: 1px solid #333;
    color: var(--text-main); 
    font-family: var(--font-mono); 
    font-size: 1rem;
    resize: vertical; 
    border-radius: 4px;    
    text-transform: uppercase;
}

/* Responsive */
@media (max-width: 600px) {
    .player-controls {
        gap: 0.5rem;
    }
    
    .action-btn {
        padding: 0.6rem 1rem;
        font-size: 0.9rem;
        min-width: 100px;
        flex: 1 1 calc(50% - 0.5rem); /* 2 botones por fila en móviles */
    }
}