/* ==========================================================================
    VARIABLES DE TEMA (Claro / Oscuro)
   ========================================================================== */
:root, .theme-light {
    --bg-main: #f4f7f6;
    --bg-card: #ffffff;
    --text-main: #333333;
    --text-muted: #666666;
    --primary-color: #0056b3;
    --primary-hover: #004494;
    --secondary-color: #e0e0e0;
    --accent-pro: #d4af37; /* Dorado PRO */
    --accent-pro-dark: #b5952f;
    --danger-color: #dc3545;
    --border-color: #cccccc;
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 8px rgba(0,0,0,0.15);
    --transition-speed: 0.3s;
}

.theme-dark {
    --bg-main: #121212;
    --bg-card: #1e1e1e;
    --text-main: #f0f0f0;
    --text-muted: #aaaaaa;
    --primary-color: #4da3ff;
    --primary-hover: #1a8cff;
    --secondary-color: #333333;
    --accent-pro: #f1c40f;
    --accent-pro-dark: #d4ac0d;
    --danger-color: #ff4d4d;
    --border-color: #444444;
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.5);
    --shadow-md: 0 4px 8px rgba(0,0,0,0.6);
}

/* ==========================================================================
    RESET Y ESTILOS GLOBALES
   ========================================================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

body {
    background-color: var(--bg-main);
    color: var(--text-main);
    transition: background-color var(--transition-speed), color var(--transition-speed);
    overflow-x: hidden;
}

/* Evita scroll cuando el menú lateral está abierto */
body.menu-open {
    overflow: hidden;
}

.hidden {
    display: none !important;
}

/* ==========================================================================
    CABECERA PRINCIPAL (Header)
   ========================================================================== */
.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: var(--primary-color);
    color: #ffffff;
    padding: 15px 20px;
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 100;
}

.titles-wrapper {
    flex-grow: 1;
}

.app-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0;
    letter-spacing: 1px;
}

.gear-icon {
    background: none;
    border: none;
    color: #ffffff;
    cursor: pointer;
    transition: transform var(--transition-speed);
    display: flex;
    align-items: center;
    justify-content: center;
}

.gear-icon:active {
    transform: rotate(45deg);
}

/* ==========================================================================
    MENÚ DE AJUSTES (Settings Panel)
   ========================================================================== */
.settings-panel {
    position: fixed;
    top: 0;
    right: 0;
    width: 300px;
    height: 100vh;
    background-color: var(--bg-card);
    box-shadow: -5px 0 15px rgba(0,0,0,0.2);
    z-index: 1000;
    transform: translateX(100%);
    transition: transform var(--transition-speed) ease-in-out;
    overflow-y: auto;
}

.settings-panel.open {
    transform: translateX(0);
}

.settings-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    background-color: var(--primary-color);
    color: #ffffff;
}

.close-btn {
    background: none;
    border: none;
    color: #ffffff;
    font-size: 1.2rem;
    cursor: pointer;
}

.settings-content {
    padding: 20px;
}

.setting-group {
    margin-bottom: 20px;
}

.setting-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.settings-divider {
    border: 0;
    height: 1px;
    background-color: var(--border-color);
    margin: 20px 0;
}

/* ==========================================================================
    COMPONENTES DE SELECCIÓN (País y Modo)
   ========================================================================== */
.selection-section {
    padding: 20px;
    background-color: var(--bg-card);
    margin: 10px;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
}

.section-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.button-group {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    margin-bottom: 20px;
}

.btn-country, .btn-mode {
    padding: 12px 8px;
    border: 2px solid var(--secondary-color);
    background-color: var(--bg-card);
    color: var(--text-main);
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-speed);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
}

.btn-country.active, .btn-mode.active {
    border-color: var(--primary-color);
    background-color: var(--primary-color);
    color: #ffffff;
}

/* ESTADOS DESACTIVADOS (Italia / Portugal) */
.btn-country.disabled {
    opacity: 0.6;
    cursor: not-allowed;
    filter: grayscale(1);
}

.badge-soon {
    font-size: 0.7rem;
    background-color: var(--danger-color);
    color: #fff;
    padding: 2px 6px;
    border-radius: 4px;
    margin-top: 4px;
}

/* ETIQUETAS PRO EN BOTONES */
.pro-badge {
    font-size: 0.65rem;
    background-color: var(--accent-pro);
    color: #000;
    padding: 1px 5px;
    border-radius: 3px;
    font-weight: 800;
    margin-top: 3px;
}

/* ==========================================================================
    FORMULARIOS DE ENTRADA (Inputs)
   ========================================================================== */
.country-module {
    padding: 10px 20px;
}

.input-group {
    margin-bottom: 18px;
    display: flex;
    flex-direction: column;
}

.input-group label {
    font-size: 0.9rem;
    margin-bottom: 6px;
    font-weight: 500;
}

.input-field {
    padding: 12px 15px;
    border: 1.5px solid var(--border-color);
    border-radius: 8px;
    background-color: var(--bg-card);
    color: var(--text-main);
    font-size: 1rem;
    outline: none;
    transition: border-color var(--transition-speed);
}

.input-field:focus {
    border-color: var(--primary-color);
}

.dropdown-select {
    width: 100%;
    padding: 12px;
    border: 1.5px solid var(--border-color);
    border-radius: 8px;
    background-color: var(--bg-card);
    color: var(--text-main);
    font-size: 1rem;
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 10px center;
    background-size: 1em;
}

/* INTERFAZ PARA MULTI-INPUT (Ej: Extras val x Cantidad) */
.multi-input {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

/* ==========================================================================
    CONFIGURACIÓN AVANZADA (Details & Summary)
   ========================================================================== */
.advanced-settings {
    background-color: var(--secondary-color);
    border-radius: 8px;
    margin-top: 15px;
    padding: 10px;
    transition: all var(--transition-speed);
    display: block !important;
}

.advanced-settings summary {
    font-weight: 600;
    cursor: pointer;
    color: var(--primary-color);
    outline: none;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.advanced-settings summary::after {
    content: '▼';
    font-size: 0.8rem;
}

.advanced-settings[open] summary::after {
    content: '▲';
}

.advanced-content {
    margin-top: 15px;
    padding-top: 10px;
    border-top: 1px solid var(--border-color);
}

/* ==========================================================================
    INTERRUPTORES (Toggle Switches)
   ========================================================================== */
.toggle-group {
    flex-direction: row !important;
    justify-content: space-between;
    align-items: center;
}

.toggle-switch {
    appearance: none;
    width: 45px;
    height: 24px;
    background-color: #ccc;
    border-radius: 12px;
    position: relative;
    cursor: pointer;
    transition: background-color 0.3s;
}

.toggle-switch::before {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    background-color: white;
    border-radius: 50%;
    top: 2px;
    left: 2px;
    transition: transform 0.3s;
}

.toggle-switch:checked {
    background-color: var(--primary-color);
}

.toggle-switch:checked::before {
    transform: translateX(21px);
}

/* ==========================================================================
    BOTONES Y ACCIONES
   ========================================================================== */
.action-container {
    padding: 20px;
    display: flex;
    justify-content: center;
}

.btn-calculate-main {
    width: 100%;
    max-width: 400px;
    padding: 16px;
    background-color: var(--primary-color);
    color: #ffffff;
    border: none;
    border-radius: 50px;
    font-size: 1.2rem;
    font-weight: 800;
    letter-spacing: 1px;
    cursor: pointer;
    box-shadow: var(--shadow-md);
    transition: transform 0.1s, background-color 0.3s;
}

.btn-calculate-main:active {
    transform: scale(0.95);
    background-color: var(--primary-hover);
}

.btn-primary-action {
    width: 100%;
    padding: 12px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    margin-bottom: 10px;
    cursor: pointer;
}

.btn-secondary {
    width: 100%;
    padding: 10px;
    background-color: var(--secondary-color);
    color: var(--text-main);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    margin-bottom: 8px;
    cursor: pointer;
}

.btn-danger {
    width: 100%;
    padding: 10px;
    background-color: var(--danger-color);
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
}

/* ==========================================================================
    ESTILOS PARA FUNCIONES PRO
   ========================================================================== */
.pro-fields-wrapper {
    background-color: rgba(0, 0, 0, 0.05);
    padding: 10px;
    border-radius: 8px;
    margin-top: 10px;
}

body:not(.is-pro) .pro-item,
body:not(.is-pro) .pro-feature {
    opacity: 0.6;
    filter: grayscale(0.6);
}

/* Bloqueo de escritura en modo básico */
body:not(.is-pro) .pro-item input,
body:not(.is-pro) .pro-item select,
body:not(.is-pro) .pro-item .toggle-switch,
body:not(.is-pro) .pro-item button,
body:not(.is-pro) .pro-feature input,
body:not(.is-pro) .pro-feature select,
body:not(.is-pro) .pro-feature .toggle-switch,
body:not(.is-pro) .pro-feature button:not(.btn-mode) {
    pointer-events: none !important;
    cursor: not-allowed !important;
}

/* Permitir que los botones de modo se puedan clicar para visualizar pero mantengan el estilo PRO */
body:not(.is-pro) .btn-mode.pro-feature {
    pointer-events: auto !important;
}

/* ==========================================================================
    DESGLOSE DE RESULTADOS
   ========================================================================== */
.results-container {
    margin: 5px 10px 20px 10px;
    padding: 25px;
    background-color: var(--bg-card);
    border-radius: 15px;
    box-shadow: var(--shadow-md);
    border: 2px solid var(--primary-color);
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.results-grid {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 20px;
}

.result-item {
    display: flex;
    justify-content: space-between;
    padding-bottom: 8px;
    border-bottom: 1px dashed var(--border-color);
    font-size: 0.95rem;
}

.result-value {
    font-weight: 700;
    color: var(--text-main);
}

.net-total-wrapper {
    text-align: center;
    padding: 20px;
    background-color: var(--primary-color);
    color: #ffffff;
    border-radius: 10px;
    margin-top: 10px;
}

#label-net-total {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    display: block;
    margin-bottom: 5px;
}

.net-amount {
    font-size: 2.2rem;
    font-weight: 900;
}

/* ==========================================================================
    MÓDULO PRÓXIMAMENTE
   ========================================================================== */
.coming-soon-content {
    text-align: center;
    padding: 40px 20px;
}

.img-construction {
    width: 150px;
    height: auto;
    margin-bottom: 20px;
    filter: drop-shadow(0 5px 15px rgba(0,0,0,0.1));
}

/* ==========================================================================
    CONTENEDORES DE PUBLICIDAD
   ========================================================================== */
.ad-banner-footer {
    width: 100%;
    margin: 10px 0;
    text-align: center;
    min-height: 50px;
    overflow: hidden;
    display: none;
}

/* ==========================================================================
    PIE DE PÁGINA (Footer)
   ========================================================================== */
.main-footer {
    text-align: center;
    padding: 30px 10px;
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* ==========================================================================
    LOADER
   ========================================================================== */
.loader {
    border: 4px solid var(--secondary-color);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    width: 30px;
    height: 30px;
    animation: spin 1s linear infinite;
    margin: 20px auto;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* ==========================================================================
    DISEÑO ADAPTATIVO
   ========================================================================== */
@media (min-width: 600px) {
    .button-group {
        grid-template-columns: repeat(4, 1fr);
    }
    
    #app-main-content {
        max-width: 600px;
        margin: 0 auto;
    }
}