*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; -webkit-tap-highlight-color: transparent; }

:root {
    --primary-gradient: linear-gradient(135deg, #0f4c81 0%, #1a6bb0 100%);
    --accent-gradient: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
    --surface-dark: #0d1117;
    --surface-card: #161b22;
    --surface-elevated: #1c2129;
    --border-subtle: #2d333b;
    --text-primary: #f0f6fc;
    --text-secondary: #8b949e;
    --text-tertiary: #6e7681;
    --success: #3fb950;
    --danger: #f85149;
    --warning: #d29922;
    --info: #58a6ff;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.4);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.5);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.6);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
}

body.light-theme {
    --surface-dark: #f4f6f9;
    --surface-card: #ffffff;
    --surface-elevated: #f0f2f5;
    --border-subtle: #d8dee4;
    --text-primary: #1c1e21;
    --text-secondary: #57606a;
    --text-tertiary: #8b949e;
    --info: #0f4c81;
}

html, body {
    background: var(--surface-dark);
    color: var(--text-primary);
    min-height: 100vh;
    width: 100%;
    overflow-x: hidden;
    font-size: 14px;
    line-height: 1.5;
}

.phone-container { min-height: 100vh; width: 100%; display: flex; flex-direction: column; padding-bottom: 16px; background: var(--surface-dark); }

.fixed-header { flex-shrink: 0; background: var(--surface-card); backdrop-filter: blur(12px); z-index: 10; box-shadow: var(--shadow-md); position: sticky; top: 0; border-bottom: 1px solid var(--border-subtle); padding-top: env(safe-area-inset-top); }
.app-bar { padding: 10px 16px; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--border-subtle); gap: 8px; flex-wrap: nowrap; background: var(--surface-card); padding-left: max(16px, env(safe-area-inset-left)); padding-right: max(16px, env(safe-area-inset-right)); }
.app-title { font-size: 15px; font-weight: 600; color: var(--text-primary); display: flex; align-items: center; gap: 8px; letter-spacing: -0.01em; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex-shrink: 1; min-width: 0; }
.app-title svg { width: 22px; height: 22px; stroke: var(--info); fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; flex-shrink: 0; }
.version-badge { font-size: 10px; background: rgba(88,166,255,0.12); color: var(--info); padding: 2px 8px; border-radius: 12px; font-weight: 600; border: 1px solid rgba(88,166,255,0.3); margin-left: 4px; white-space: nowrap; }
.header-actions { display: flex; align-items: center; gap: 6px; flex-shrink: 0; margin-left: auto; }

.btn-icon { background: var(--surface-elevated); border: 1px solid var(--border-subtle); color: var(--text-secondary); width: 34px; height: 34px; border-radius: 50%; display: flex; align-items: center; justify-content: center; cursor: pointer; transition: all .2s; flex-shrink: 0; }
.btn-icon:hover { background: var(--surface-card); color: var(--text-primary); }
.btn-icon svg { width: 16px; height: 16px; stroke: currentColor; fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }

.btn-info-about { background: rgba(88,166,255,0.12); color: var(--info); border: 1px solid rgba(88,166,255,0.3); padding: 0 16px; height: 34px; border-radius: 20px; font-size: 12px; font-weight: 600; cursor: pointer; display: flex; align-items: center; gap: 8px; transition: all .2s; font-family: 'Inter', sans-serif; flex-shrink: 0; }
.btn-info-about:hover { background: rgba(88,166,255,0.2); }
.btn-info-about svg { width: 14px; height: 14px; stroke: currentColor; fill: none; stroke-width: 2; }

@media (max-width: 480px) {
    .contact-text { display: none; } 
    .btn-info-about { padding: 0 10px; width: 34px; justify-content: center; }
}

.offline-banner { background: #7d4a00; color: #fff; padding: 7px 16px; display: flex; align-items: center; justify-content: center; gap: 8px; font-size: 12px; font-weight: 500; }
.nav-tabs { display: flex; background: var(--surface-card); padding: 8px 12px; gap: 8px; border-bottom: 1px solid var(--border-subtle); }
.tab-btn { flex: 1; background: var(--surface-elevated); border: 1px solid var(--border-subtle); color: var(--text-secondary); padding: 10px 8px; border-radius: var(--radius-md); font-size: 12px; font-weight: 500; cursor: pointer; text-align: center; transition: all .25s ease; font-family: 'Inter', sans-serif; display: flex; align-items: center; justify-content: center; gap: 6px; }
.tab-btn svg { width: 16px; height: 16px; stroke: currentColor; fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.tab-btn.active { background: var(--primary-gradient); color: #fff; border-color: transparent; font-weight: 600; box-shadow: 0 2px 12px rgba(15,76,129,.5); }

.app-content { padding: 14px; flex: 1; }
.tab-pane { display: none; }
.tab-pane.active { display: block; }

.rate-card { background: var(--accent-gradient); border-radius: var(--radius-lg); padding: 14px 16px; margin-bottom: 16px; display: flex; justify-content: space-between; align-items: center; box-shadow: var(--shadow-md); border: 1px solid rgba(255,255,255,.08); gap: 10px; }
.rate-info { display: flex; flex-direction: column; gap: 3px; min-width: 0; }
.rate-label { font-size: 10px; color: rgba(255,255,255,.7); text-transform: uppercase; letter-spacing: .6px; font-weight: 500; }
.rate-val { font-size: 16px; font-weight: 700; color: #fff; letter-spacing: -.01em; }
.rate-val.secondary { font-size: 12px; opacity: .85; font-weight: 500; }
.rate-updated { font-size: 10px; color: rgba(255,255,255,.6); margin-top: 2px; }

.btn-sync { background: rgba(255,255,255,.15); border: 1px solid rgba(255,255,255,.25); color: #fff; padding: 8px 14px; border-radius: 24px; font-size: 12px; font-weight: 500; cursor: pointer; display: flex; align-items: center; gap: 6px; transition: all .2s; font-family: 'Inter', sans-serif; flex-shrink: 0; }
.btn-sync:hover { background: rgba(255,255,255,.25); }
.btn-sync:disabled { opacity: .6; cursor: wait; }
.btn-sync svg { width: 14px; height: 14px; stroke: currentColor; fill: none; stroke-width: 2; }
.spinner { display: none; width: 14px; height: 14px; border: 2px solid rgba(255,255,255,.3); border-top-color: #fff; border-radius: 50%; animation: spin .8s linear infinite; }
.spinner.active { display: inline-block; }
@keyframes spin { to { transform: rotate(360deg); } }

.error-box { background: rgba(248,81,73,.12); border: 1px solid rgba(248,81,73,.4); color: var(--danger); padding: 10px 14px; border-radius: var(--radius-md); font-size: 12px; margin-bottom: 12px; }

.form-group { margin-bottom: 14px; }
label { display: flex; align-items: center; gap: 5px; font-size: 11px; color: var(--text-secondary); margin-bottom: 5px; font-weight: 500; letter-spacing: .3px; text-transform: uppercase; }
label.label-info { color: var(--info); font-weight: 700; }
label svg { width: 12px; height: 12px; stroke: currentColor; fill: none; stroke-width: 2; }

input, select { width: 100%; padding: 11px 14px; background: var(--surface-elevated); border: 1px solid var(--border-subtle); border-radius: var(--radius-sm); color: var(--text-primary); font-size: 14px; font-weight: 500; outline: none; transition: border-color .2s, box-shadow .2s; font-family: 'Inter', sans-serif; appearance: none; }
input:focus, select:focus { border-color: var(--info); box-shadow: 0 0 0 3px rgba(88,166,255,.15); }
input:invalid:not(:placeholder-shown) { border-color: var(--danger); }
select { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%238b949e' 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 14px center; padding-right: 38px; }

input[type=number]::-webkit-inner-spin-button, input[type=number]::-webkit-outer-spin-button { -webkit-appearance: none; margin: 0; }
input[type=number] { -moz-appearance: textfield; }

.highlight-box { background: rgba(88,166,255,.06); padding: 12px; border-radius: var(--radius-md); border: 1px solid rgba(88,166,255,.2); }
.row { display: flex; gap: 12px; }
.row .form-group { flex: 1; min-width: 0; }

.personalization-card { background: var(--surface-card); border: 1px solid var(--border-subtle); border-radius: var(--radius-md); margin-bottom: 16px; overflow: hidden; box-shadow: var(--shadow-sm); }
.personalization-card summary { padding: 12px 16px; cursor: pointer; font-size: 12px; font-weight: 600; color: var(--info); display: flex; align-items: center; gap: 8px; list-style: none; background: rgba(88,166,255,0.05); transition: background 0.2s; }
.personalization-card summary::-webkit-details-marker { display: none; }
.personalization-card summary:hover { background: rgba(88,166,255,0.1); }
.personalization-card summary::after { content: '+'; margin-left: auto; font-size: 16px; font-weight: 700; transition: transform 0.2s; }
.personalization-card[open] summary::after { content: '−'; }
.personalization-content { padding: 16px; border-top: 1px solid var(--border-subtle); background: var(--surface-elevated); }

.results-card { background: var(--surface-card); border-radius: var(--radius-lg); padding: 16px; margin-top: 14px; border: 1px solid var(--border-subtle); box-shadow: var(--shadow-sm); }
.results-title { font-size: 11px; font-weight: 700; color: var(--text-secondary); text-transform: uppercase; letter-spacing: .6px; margin-bottom: 12px; padding-bottom: 8px; border-bottom: 1px solid var(--border-subtle); display: flex; align-items: center; gap: 6px; }
.results-title svg { width: 14px; height: 14px; stroke: currentColor; fill: none; stroke-width: 2; }

.result-row { display: flex; justify-content: space-between; align-items: center; font-size: 13px; margin-bottom: 8px; color: var(--text-secondary); gap: 10px; }
.result-row.highlight { color: var(--text-primary); font-weight: 500; }
.result-row.discount { color: var(--danger); font-weight: 500; }
.result-row.total-bs { margin-top: 10px; padding-top: 10px; border-top: 1px dashed var(--border-subtle); font-size: 15px; font-weight: 700; color: var(--text-primary); }
.result-row.total-usd { font-size: 15px; font-weight: 700; color: var(--success); }
.result-row .value { font-variant-numeric: tabular-nums; font-weight: 500; text-align: right; }

.action-row { display: flex; gap: 8px; margin-top: 16px; padding-top: 12px; border-top: 1px solid var(--border-subtle); flex-wrap: wrap; }
.btn-action { flex: 1; min-width: 90px; background: var(--surface-elevated); border: 1px solid var(--border-subtle); color: var(--text-primary); padding: 10px 8px; border-radius: var(--radius-md); font-size: 12px; font-weight: 600; cursor: pointer; display: flex; align-items: center; justify-content: center; gap: 6px; transition: all .2s; font-family: 'Inter', sans-serif; }
.btn-action:hover { background: var(--surface-card); border-color: var(--info); }
.btn-action svg { width: 14px; height: 14px; stroke: currentColor; fill: none; stroke-width: 2; }

/* NUEVO: BANNER FAQ */
.faq-banner { display: flex; align-items: center; gap: 12px; background: var(--surface-card); border: 1px solid var(--border-subtle); border-radius: var(--radius-lg); padding: 16px; margin-top: 20px; cursor: pointer; transition: all 0.2s; box-shadow: var(--shadow-sm); }
.faq-banner:hover { border-color: var(--info); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.faq-banner-icon { background: rgba(88,166,255,0.1); color: var(--info); width: 40px; height: 40px; border-radius: 50%; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.faq-banner-icon svg { width: 20px; height: 20px; stroke: currentColor; fill: none; stroke-width: 2; }
.faq-banner-text { display: flex; flex-direction: column; text-align: left; }
.faq-banner-text strong { font-size: 14px; color: var(--text-primary); }
.faq-banner-text span { font-size: 12px; color: var(--text-secondary); }

.ad-container { margin-top: 16px; text-align: center; }
.trust-signature { margin-top: 24px; margin-bottom: 12px; text-align: center; padding: 16px 12px; border-top: 1px solid var(--border-subtle); }
.trust-title { font-size: 11px; font-weight: 700; color: var(--info); letter-spacing: .6px; text-transform: uppercase; display: flex; align-items: center; justify-content: center; gap: 6px; }
.trust-title svg { width: 14px; height: 14px; stroke: currentColor; fill: none; stroke-width: 2; }
.trust-subtitle { font-size: 10px; color: var(--text-tertiary); margin-top: 4px; }

.legal-links { margin-top: 12px; display: flex; align-items: center; justify-content: center; gap: 8px; font-size: 11px; }
.legal-links a { color: var(--text-tertiary); text-decoration: none; transition: color 0.2s; }
.legal-links a:hover { color: var(--info); text-decoration: underline; }
.legal-links span { color: var(--border-subtle); }

.overlay-screen { display: none; position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: var(--surface-card); color: var(--text-primary); z-index: 1000; overflow-y: auto; padding: 24px 16px; box-sizing: border-box; }
body.light-theme .overlay-screen { background: #fff; }
.about-content { max-width: 500px; margin: 0 auto; text-align: center; display: flex; flex-direction: column; align-items: center; }
.about-logo { width: 160px; height: auto; margin-bottom: 16px; border-radius: 16px; box-shadow: 0 8px 24px rgba(0,0,0,.12); }
.about-title { font-size: 22px; font-weight: 700; color: var(--info); margin-bottom: 4px; letter-spacing: -.02em; }
.about-subtitle { font-size: 13px; color: var(--text-secondary); margin-bottom: 24px; line-height: 1.5; }

.contact-box { width: 100%; background: var(--surface-elevated); border: 1px solid var(--border-subtle); border-radius: 16px; padding: 16px; margin-bottom: 24px; display: flex; flex-direction: column; gap: 10px; }
.contact-link { display: flex; align-items: center; justify-content: center; gap: 10px; padding: 13px 16px; border-radius: 12px; font-size: 14px; font-weight: 600; text-decoration: none; color: #fff; transition: transform .2s, opacity .2s; font-family: 'Inter', sans-serif; }
.contact-link:active { transform: scale(.98); }
.contact-link svg { width: 18px; height: 18px; stroke: currentColor; fill: none; stroke-width: 2; }
.link-wa { background: linear-gradient(135deg, #25d366 0%, #128c7e 100%); }
.link-channel { background: linear-gradient(135deg, #0088cc 0%, #006699 100%); }
.link-email { background: linear-gradient(135deg, #ea4335 0%, #c5221f 100%); }
.link-fb { background: linear-gradient(135deg, #1877f2 0%, #0c5dc7 100%); }

.btn-back-calc, .btn-secondary { background: var(--primary-gradient); color: #fff; border: none; padding: 14px 32px; border-radius: 28px; font-size: 14px; font-weight: 700; cursor: pointer; box-shadow: 0 4px 16px rgba(15,76,129,.35); margin-top: 8px; display: flex; align-items: center; gap: 8px; font-family: 'Inter', sans-serif; transition: transform .2s; }
.btn-secondary { background: var(--surface-elevated); color: var(--text-primary); box-shadow: none; border: 1px solid var(--border-subtle); margin-bottom: 12px; }
.btn-back-calc:active, .btn-secondary:active { transform: scale(.97); }

.history-list { width: 100%; display: flex; flex-direction: column; gap: 10px; margin-bottom: 16px; }
.history-item { background: var(--surface-elevated); border: 1px solid var(--border-subtle); border-radius: 12px; padding: 12px; text-align: left; font-size: 12px; }
.history-item .hi-date { font-size: 10px; color: var(--text-tertiary); margin-bottom: 4px; }
.history-item .hi-line { display: flex; justify-content: space-between; color: var(--text-secondary); margin-bottom: 2px; }
.history-item .hi-total { color: var(--success); font-weight: 700; margin-top: 6px; padding-top: 6px; border-top: 1px dashed var(--border-subtle); display: flex; justify-content: space-between; }

/* ESTILOS DEL ACORDEÓN FAQ */
.faq-list { width: 100%; display: flex; flex-direction: column; gap: 10px; margin-bottom: 20px; }
.faq-item { background: var(--surface-elevated); border: 1px solid var(--border-subtle); border-radius: 12px; overflow: hidden; text-align: left; }
.faq-item summary { padding: 14px 16px; font-size: 14px; font-weight: 600; color: var(--text-primary); cursor: pointer; list-style: none; display: flex; justify-content: space-between; align-items: center; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: '+'; font-size: 18px; color: var(--info); font-weight: bold; }
.faq-item[open] summary::after { content: '−'; }
.faq-item[open] summary { border-bottom: 1px solid var(--border-subtle); background: rgba(88,166,255,0.05); }
.faq-answer { padding: 16px; font-size: 13px; color: var(--text-secondary); line-height: 1.6; }
.faq-answer p { margin-bottom: 8px; }
.faq-answer p:last-child { margin-bottom: 0; }
.faq-answer strong { color: var(--text-primary); }

/* ESTILOS PÁGINAS LEGALES */
.legal-content { text-align: left; }
.legal-content .about-title { text-align: center; margin-bottom: 8px; }
.legal-content .about-subtitle { text-align: center; margin-bottom: 24px; }
.legal-text h3 { font-size: 15px; color: var(--info); margin-top: 20px; margin-bottom: 8px; }
.legal-text p { font-size: 13px; color: var(--text-secondary); line-height: 1.6; margin-bottom: 12px; text-align: justify; }
.legal-text strong { color: var(--text-primary); }

#update-banner { display: none; position: fixed; bottom: 16px; left: 16px; right: 16px; background: var(--primary-gradient); color: #fff; padding: 14px 16px; border-radius: var(--radius-md); box-shadow: var(--shadow-lg); z-index: 100; align-items: center; justify-content: space-between; border: 1px solid rgba(255,255,255,.15); }
#update-banner span { font-size: 13px; font-weight: 500; }
#update-banner button { background: var(--success); color: #fff; border: none; padding: 7px 14px; border-radius: 8px; font-size: 12px; font-weight: 700; cursor: pointer; font-family: 'Inter', sans-serif; }

@media (max-width: 420px) {
    .app-title span { font-size: 13px; }
    .btn-icon, .btn-info-about { width: 30px; height: 30px; padding: 0; justify-content: center; }
    .btn-icon svg, .btn-info-about svg { width: 14px; height: 14px; }
    .header-actions { gap: 4px; }
    .version-badge { font-size: 9px; padding: 2px 6px; }
    .tab-btn { font-size: 11px; padding: 9px 4px; }
}

/* ESTILOS DEL TUTORIAL */
#tutorial-overlay { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0, 0, 0, 0.7); z-index: 9999; display: none; pointer-events: none; }
.tutorial-tooltip { position: absolute; background: var(--surface-elevated); border: 2px solid var(--info); padding: 16px; border-radius: var(--radius-lg); width: 260px; box-shadow: 0 10px 30px rgba(0,0,0,0.9); text-align: center; z-index: 10002; transition: all 0.3s ease; pointer-events: auto; }
.tutorial-tooltip h3 { color: var(--info); font-size: 15px; margin-bottom: 6px; font-weight: 700; }
.tutorial-tooltip p { font-size: 12px; color: var(--text-primary); line-height: 1.4; margin-bottom: 12px; }
.tutorial-buttons { display: flex; justify-content: space-between; gap: 8px; }
.tutorial-buttons button { padding: 8px 12px; border-radius: var(--radius-sm); font-size: 12px; font-weight: 700; cursor: pointer; border: none; flex: 1; font-family: 'Inter', sans-serif; }
#tut-skip { background: var(--surface-card); color: var(--text-secondary); border: 1px solid var(--border-subtle); }
#tut-next { background: var(--primary-gradient); color: #fff; }
.tutorial-focus { position: relative; z-index: 10000 !important; box-shadow: 0 0 0 4px var(--info), 0 0 40px 10px rgba(88,166,255,0.4) !important; background: var(--surface-card) !important; border-radius: var(--radius-md); pointer-events: auto; }

/* ============================================================ */
/* DISEÑO DEL CONTENEDOR PDF (OCULTO EN PANTALLA)               */
/* ============================================================ */
#pdf-export-container { display: none; background: #ffffff; color: #000000; padding: 40px; font-family: Arial, sans-serif; width: 100%; max-width: 800px; margin: 0 auto; position: relative; overflow: hidden; box-sizing: border-box; }
.pdf-watermark { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); opacity: 0.08; width: 60%; pointer-events: none; z-index: 0; }
.pdf-header { text-align: center; margin-bottom: 30px; border-bottom: 2px solid #0f4c81; padding-bottom: 20px; }
.pdf-logo { max-width: 100px; margin-bottom: 10px; }
.pdf-header h2 { color: #0f4c81; margin: 0; font-size: 24px; }
.pdf-header p { margin: 5px 0 0 0; font-size: 14px; color: #555; }
.pdf-custom-box { margin-bottom: 20px; padding: 15px; background: #f8f9fa; border-left: 4px solid #0f4c81; border-radius: 4px; display: none; }
.pdf-custom-box p { margin: 0 0 5px 0; font-size: 14px; }
.pdf-custom-box p:last-child { margin: 0; }
.pdf-content-table { margin-bottom: 40px; font-size: 15px; line-height: 1.8; }
.pdf-footer { text-align: center; font-size: 12px; color: #777; margin-top: 60px; border-top: 1px solid #ccc; padding-top: 15px; }

/* ============================================================ */
/* REGLAS ESTRICTAS DE IMPRESIÓN (CENTRADO PERFECTO)            */
/* ============================================================ */
@page {
    margin: 0; /* Elimina la ruta y fecha del navegador */
    size: auto;
}

@media print {
    html, body { 
        margin: 0 !important; 
        padding: 0 !important; 
        background: #ffffff !important; 
        height: auto !important; 
        overflow: visible !important; 
    }
    
    /* Ocultar la app web */
    .phone-container { display: none !important; }
    
    /* Configurar el PDF para que se centre en la hoja */
    #pdf-export-container {
        display: block !important;
        position: relative !important; /* Quitamos el absolute para que fluya natural */
        width: 100% !important;
        max-width: 800px !important; /* Le damos un ancho máximo de hoja */
        margin: 0 auto !important; /* Esto es lo que lo centra */
        padding: 40px !important; /* Márgenes internos */
        border: none !important;
        box-sizing: border-box !important;
    }

    .pdf-watermark, .pdf-header h2, .pdf-custom-box {
        -webkit-print-color-adjust: exact !important;
        print-color-adjust: exact !important;
    }
}