:root {
    --primary: #25292e;
    --primary-dark: #191c20;
    --primary-light: #3a4047;
    --steel: #3b5a7a;
    --accent: #c47c35;
    --accent-hover: #a56324;
    --dark: #22252a;
    --light-bg: #f8f9fa;
    --card-bg: #ffffff;
    --border-color: #e2e5e9;
    --text-muted: #5e6672;
    --font-heading: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    --radius: 6px;
    --shadow: 0 4px 18px rgba(0,0,0,0.06);
    --shadow-hover: 0 8px 28px rgba(0,0,0,0.12);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: var(--font-body); font-size: 16px; line-height: 1.65; color: var(--dark); background-color: var(--light-bg); overflow-x: hidden; }
a { color: var(--steel); text-decoration: none; transition: color 0.2s ease; }
a:hover { color: var(--accent); }
img { max-width: 100%; height: auto; display: block; }
.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 20px; }

.site-header { background: #ffffff; border-bottom: 1px solid var(--border-color); position: sticky; top: 0; z-index: 1000; }
.top-bar { background: var(--primary-dark); color: #cdd2d9; font-size: 13px; padding: 8px 0; }
.top-bar-inner { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 10px; }
.contact-quick { display: flex; gap: 20px; flex-wrap: wrap; }
.contact-quick span { display: inline-flex; align-items: center; gap: 6px; }
.top-bar-actions { display: flex; align-items: center; gap: 15px; }
.top-wa { color: #f0c594; font-weight: 600; display: inline-flex; align-items: center; gap: 6px; }
.top-wa:hover { color: #ffffff; }
.top-cta { background: var(--accent); color: #ffffff; padding: 4px 12px; border-radius: 4px; font-weight: 600; }
.top-cta:hover { background: var(--accent-hover); color: #ffffff; }

.main-nav-bar { padding: 14px 0; background: #ffffff; }
.nav-inner { display: flex; justify-content: space-between; align-items: center; }
.brand-logo { display: flex; align-items: center; gap: 12px; text-decoration: none; color: var(--primary); }
.logo-mark { background: var(--primary); color: #ffffff; font-family: var(--font-heading); font-weight: 800; font-size: 18px; width: 44px; height: 44px; border-radius: 6px; display: flex; align-items: center; justify-content: center; border: 2px solid var(--accent); }
.logo-text { font-size: 18px; font-weight: 600; color: var(--dark); line-height: 1.2; }
.logo-text strong { color: var(--accent); display: block; font-size: 13px; text-transform: uppercase; letter-spacing: 1.2px; }

.nav-menu ul { list-style: none; display: flex; gap: 16px; align-items: center; flex-wrap: wrap; }
.nav-menu a { color: var(--dark); font-size: 14px; font-weight: 600; padding: 6px 10px; border-radius: 4px; transition: all 0.2s ease; }
.nav-menu a:hover, .nav-menu a.active { background: #edf2f7; color: var(--steel); }
.nav-toggle { display: none; background: none; border: none; cursor: pointer; flex-direction: column; gap: 5px; }
.nav-toggle span { display: block; width: 25px; height: 3px; background: var(--primary); border-radius: 2px; }

.hero-section { padding: 70px 0; background: linear-gradient(135deg, #f0f3f6 0%, #ffffff 100%); border-bottom: 1px solid var(--border-color); }
.hero-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 40px; align-items: center; }
.hero-text h1 { font-family: var(--font-heading); font-size: 38px; line-height: 1.25; color: var(--primary-dark); margin-bottom: 20px; font-weight: 800; }
.hero-lead { font-size: 18px; color: var(--text-muted); margin-bottom: 25px; line-height: 1.7; }
.hero-badges { display: flex; gap: 15px; flex-wrap: wrap; margin-bottom: 30px; }
.hero-badge { background: #e8eef4; border: 1px solid #c9d7e5; color: var(--steel); font-size: 13px; font-weight: 600; padding: 6px 14px; border-radius: 20px; }
.hero-actions { display: flex; gap: 15px; flex-wrap: wrap; }

.btn-primary { background: var(--accent); color: #ffffff; font-weight: 700; padding: 12px 26px; border-radius: var(--radius); display: inline-flex; align-items: center; gap: 8px; border: none; cursor: pointer; transition: all 0.2s ease; }
.btn-primary:hover { background: var(--accent-hover); color: #ffffff; transform: translateY(-2px); box-shadow: 0 4px 12px rgba(196, 124, 53, 0.35); }
.btn-secondary { background: #ffffff; color: var(--primary); border: 2px solid var(--primary); font-weight: 700; padding: 10px 24px; border-radius: var(--radius); display: inline-flex; align-items: center; gap: 8px; cursor: pointer; transition: all 0.2s ease; }
.btn-secondary:hover { background: #edf2f7; color: var(--steel); }
.hero-img-box { border-radius: 12px; overflow: hidden; box-shadow: var(--shadow); border: 1px solid var(--border-color); }

.section { padding: 65px 0; }
.section-alt { background: #f0f3f6; border-top: 1px solid var(--border-color); border-bottom: 1px solid var(--border-color); }
.section-header { text-align: center; max-width: 800px; margin: 0 auto 50px auto; }
.section-tag { color: var(--accent); text-transform: uppercase; font-weight: 700; font-size: 13px; letter-spacing: 2px; display: block; margin-bottom: 10px; }
.section-title { font-family: var(--font-heading); font-size: 32px; color: var(--primary-dark); margin-bottom: 15px; line-height: 1.3; }
.section-sub { font-size: 16px; color: var(--text-muted); }

.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 35px; align-items: center; }
.card { background: var(--card-bg); border-radius: var(--radius); padding: 30px; border: 1px solid var(--border-color); box-shadow: var(--shadow); transition: all 0.3s ease; }
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); border-color: #c9d7e5; }
.card-icon { font-size: 32px; color: var(--accent); margin-bottom: 15px; }
.card-title { font-family: var(--font-heading); font-size: 20px; color: var(--primary-dark); margin-bottom: 12px; }
.card-desc { color: var(--text-muted); font-size: 15px; line-height: 1.6; margin-bottom: 18px; }

.calc-box { background: #ffffff; border-radius: 12px; border: 2px solid #c9d7e5; padding: 35px; box-shadow: var(--shadow); max-width: 850px; margin: 0 auto; }
.form-group { margin-bottom: 22px; }
.form-label { display: block; font-weight: 700; margin-bottom: 8px; color: var(--dark); font-size: 15px; }
.form-control { width: 100%; padding: 12px 14px; border: 1px solid #c9d7e5; border-radius: 6px; font-size: 15px; font-family: inherit; background: #ffffff; }
.form-control:focus { outline: none; border-color: var(--steel); box-shadow: 0 0 0 3px rgba(59, 90, 122, 0.15); }
.checkbox-label { display: flex; align-items: center; gap: 10px; font-size: 15px; cursor: pointer; margin-bottom: 8px; }
.calc-results { background: #f0f4f8; border-radius: 8px; padding: 20px 25px; margin-top: 25px; border: 1px solid #c9d7e5; }
.calc-row { display: flex; justify-content: space-between; padding: 8px 0; border-bottom: 1px dashed #c0d0df; font-size: 15px; }
.calc-row.total-row { border-bottom: none; font-size: 20px; font-weight: 800; color: var(--primary-dark); padding-top: 14px; }

.site-footer { background: #181b1e; color: #c4c9d1; padding: 60px 0 20px 0; font-size: 14px; border-top: 4px solid var(--accent); }
.footer-content { display: grid; grid-template-columns: 1.5fr 1fr 1.2fr 1.2fr; gap: 35px; margin-bottom: 45px; }
.footer-logo .logo-mark { background: #25292e; color: #ffffff; border: 2px solid var(--accent); }
.footer-logo .logo-text { color: #ffffff; }
.footer-logo .logo-text strong { color: var(--accent); }
.footer-desc { margin-top: 15px; color: #9aa2ac; font-size: 13.5px; line-height: 1.6; }
.legal-badge-box { margin-top: 20px; background: #23272d; padding: 12px; border-radius: 6px; border: 1px solid #363b44; }
.ruc-tag { color: #ffffff; font-size: 14px; }
.sunat-tag { color: #d0a472; font-size: 12px; }
.footer-title { color: #ffffff; font-size: 16px; font-weight: 700; margin-bottom: 18px; text-transform: uppercase; letter-spacing: 1px; }
.footer-links, .footer-legal-links, .footer-contact { list-style: none; }
.footer-links li, .footer-legal-links li { margin-bottom: 9px; }
.footer-links a, .footer-legal-links a { color: #a6b0bd; }
.footer-links a:hover, .footer-legal-links a:hover { color: #ffffff; }
.footer-contact li { margin-bottom: 12px; color: #a6b0bd; line-height: 1.5; }
.footer-contact a { color: #f0c594; }
.reclamaciones-widget { margin-bottom: 15px; background: #23272d; padding: 10px; border-radius: 6px; border: 1px solid #363b44; }
.libro-link { display: flex; align-items: center; gap: 10px; color: #ffffff; }
.libro-caption { font-size: 12px; color: #ffffff; line-height: 1.3; }
.libro-caption small { color: #d0a472; }
.footer-bottom { border-top: 1px solid #282c33; padding-top: 20px; }
.footer-bottom-inner { display: flex; justify-content: space-between; align-items: center; flex-wrap: gap: 15px; font-size: 13px; color: #8a929e; }
.footer-legal-tags { display: flex; gap: 10px; }

@media (max-width: 992px) {
    .hero-grid, .grid-3, .grid-2 { grid-template-columns: 1fr; }
    .footer-content { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
    .nav-toggle { display: flex; }
    .nav-menu { display: none; width: 100%; margin-top: 15px; }
    .nav-menu.open { display: block; }
    .nav-menu ul { flex-direction: column; align-items: flex-start; gap: 8px; }
    .footer-content { grid-template-columns: 1fr; }
    .top-bar-inner { flex-direction: column; align-items: flex-start; }
}