/* ==========================================================================
   VARIABLES DE DISEÑO (Modifica esto para cambiar el estilo fácilmente)
   ========================================================================== */
:root {
    --fuente-principal: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --fuente-pantalla: 'Courier New', Courier, monospace; /* Tipografía monoespaciada para que no baile el tiempo */
    
    /* Paleta de colores */
    --color-fondo-pantalla: #090938;
    --color-texto-pantalla: #00ffcc;
    --color-fondo-cuerpo: #090938;
    --color-tarjeta: #ffffff;
    --color-texto: #333333;
    
    /* Colores de los botones */
    --color-iniciar: #2ecc71;
    --color-pausar: #e74c3c;
    --color-marca: #3498db;
    --color-reiniciar: #95a5a6;
    --color-eliminar: #e74c3c;
}

/* ==========================================================================
   ESTILOS GENERALES
   ========================================================================== */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--fuente-principal);
    background-color: var(--color-fondo-cuerpo);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

.cronometro-container {
    background-color: var(--color-tarjeta);
    padding: 2.5rem;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    text-align: center;
    width: 100%;
    max-width: 450px;
}

/* Pantalla del tiempo */
.pantalla {
    font-family: var(--fuente-pantalla);
    font-size: 3rem;
    font-weight: bold;
    background-color: var(--color-fondo-pantalla);
    color: var(--color-texto-pantalla);
    padding: 1.5rem;
    border-radius: 10px;
    margin-bottom: 2rem;
    box-shadow: inset 0 0 10px rgba(0,0,0,0.5);
}

.pantalla .ms {
    font-size: 2rem;
    opacity: 0.8;
}

/* Botones */
.controles {
    display: flex;
    gap: 10px;
    justify-content: center;
    margin-bottom: 2rem;
}

.btn {
    padding: 0.8rem 1.5rem;
    font-size: 1rem;
    font-weight: bold;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.2s ease;
    flex: 1;
    color: white;
}

.btn:active {
    transform: scale(0.95);
}

.btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    transform: none;
}

/* Clases específicas de botones */
.btn-iniciar { background-color: var(--color-iniciar); }
.btn-pausar { background-color: var(--color-pausar); }
.btn-marca { background-color: var(--color-marca); }
.btn-reiniciar { background-color: var(--color-reiniciar); }

/* Lista de marcas */
.marcas-container {
    text-align: left;
    border-top: 2px solid #eee;
    padding-top: 1.5rem;
}

.marcas-container h3 {
    margin-bottom: 1rem;
    color: var(--color-texto);
}

#lista-marcas {
    list-style: none;
    max-height: 200px;
    overflow-y: auto;
    padding-right: 5px;
}

#lista-marcas li {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.6rem 0.5rem;
    border-bottom: 1px solid #eee;
    font-family: var(--fuente-pantalla);
    font-size: 1.1rem;
}

/* Botón eliminar marca */
.btn-eliminar {
    background: none;
    border: none;
    color: var(--color-eliminar);
    cursor: pointer;
    font-weight: bold;
    font-family: var(--fuente-principal);
    font-size: 0.9rem;
    padding: 2px 8px;
    border-radius: 3px;
}

.btn-eliminar:hover {
    background-color: rgba(231, 76, 60, 0.1);
}