/* ============================================================
   Optiman Reliability — Estilos compartidos (v1.0)
   Usado por: páginas de servicio (auditoria, predictivo, rcm, rcfa, formacion)
   ============================================================ */

:root {
  --color-bg:         #0f1923;
  --color-bg-alt:     #141f2d;
  --color-bg-card:    #182132;
  --color-border:     #1e2f45;
  --color-primary:    #2e6da4;
  --color-primary-lt: #7aaece;
  --color-text:       #e8edf2;
  --color-text-muted: #8da4bc;
  --color-accent:     #3a80be;
  --font-main:        'Inter', sans-serif;
  --radius:           8px;
  --radius-lg:        14px;
  --shadow:           0 4px 24px rgba(0,0,0,0.4);
  --transition:       0.3s ease;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { background-color: var(--color-bg); color: var(--color-text); font-family: var(--font-main); font-size: 16px; line-height: 1.7; -webkit-font-smoothing: antialiased; }
a { color: var(--color-primary-lt); text-decoration: none; transition: color var(--transition); }
a:hover { color: #fff; }
img, svg { display: block; }

.container { width: 100%; max-width: 1160px; margin: 0 auto; padding: 0 20px; }
.section { padding: 96px 0; }
.section-alt { background-color: var(--color-bg-alt); }

.section-label { display: inline-block; font-size: 0.72rem; font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase; color: var(--color-primary-lt); margin-bottom: 12px; }
.section-title { font-size: clamp(1.7rem, 3vw, 2.4rem); font-weight: 700; line-height: 1.2; color: #fff; margin-bottom: 16px; }
.section-subtitle { font-size: 1.05rem; color: var(--color-text-muted); max-width: 680px; margin-bottom: 56px; line-height: 1.65; }

.btn { display: inline-flex; align-items: center; gap: 8px; padding: 13px 26px; border-radius: var(--radius); font-size: 0.95rem; font-weight: 600; cursor: pointer; border: none; transition: all var(--transition); text-decoration: none; }
.btn-primary { background: var(--color-primary); color: #fff; }
.btn-primary:hover { background: var(--color-accent); color: #fff; transform: translateY(-2px); box-shadow: 0 6px 20px rgba(46,109,164,0.4); }
.btn-outline { background: transparent; color: var(--color-primary-lt); border: 1.5px solid var(--color-primary); }
.btn-outline:hover { background: rgba(46,109,164,0.12); color: #fff; transform: translateY(-2px); }

.fade-in { opacity: 0; transform: translateY(18px); transition: opacity 0.6s ease, transform 0.6s ease; }
.fade-in.visible { opacity: 1; transform: translateY(0); }

/* ── Navbar ── */
#navbar { position: fixed; top: 0; left: 0; right: 0; z-index: 1000; background: rgba(15,25,35,0.92); backdrop-filter: blur(10px); border-bottom: 1px solid var(--color-border); height: 64px; display: flex; align-items: center; transition: background var(--transition); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; width: 100%; }
.nav-logo { display: flex; align-items: center; gap: 14px; text-decoration: none; }
.nav-logo-sep { width: 1px; height: 28px; background: var(--color-primary); opacity: 0.6; flex-shrink: 0; }
.nav-logo-wordmark { display: flex; flex-direction: column; line-height: 1; gap: 4px; }
.nav-logo-name { font-size: 0.88rem; font-weight: 700; color: var(--color-primary-lt); letter-spacing: 0.12em; text-transform: uppercase; }
.nav-logo-tagline { font-size: 0.6rem; font-weight: 400; color: var(--color-text-muted); letter-spacing: 0.1em; text-transform: uppercase; }
.nav-links { display: flex; align-items: center; gap: 32px; list-style: none; }
.nav-links a { font-size: 0.88rem; font-weight: 500; color: var(--color-text-muted); transition: color var(--transition); }
.nav-links a:hover, .nav-links a.active { color: #fff; }
.nav-cta { font-size: 0.85rem !important; padding: 8px 18px; }
.nav-toggle { display: none; background: none; border: none; cursor: pointer; color: var(--color-text); padding: 4px; }
.nav-mobile { display: none; flex-direction: column; gap: 0; position: fixed; top: 64px; left: 0; right: 0; background: var(--color-bg-alt); border-bottom: 1px solid var(--color-border); z-index: 999; padding: 16px 20px 24px; }
.nav-mobile.open { display: flex; }
.nav-mobile a { padding: 12px 0; font-size: 1rem; font-weight: 500; color: var(--color-text-muted); border-bottom: 1px solid var(--color-border); }
.nav-mobile a:last-child { border-bottom: none; }
.nav-mobile a:hover { color: #fff; }

/* ── Hero de página de servicio ── */
.service-hero { padding: 140px 0 96px; position: relative; overflow: hidden; border-bottom: 1px solid var(--color-border); }
.service-hero-bg { position: absolute; inset: 0; background: radial-gradient(ellipse 60% 80% at 70% 50%, rgba(46,109,164,0.07) 0%, transparent 70%); pointer-events: none; }
.service-hero-breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 0.8rem; color: var(--color-text-muted); margin-bottom: 24px; }
.service-hero-breadcrumb a { color: var(--color-text-muted); }
.service-hero-breadcrumb a:hover { color: var(--color-primary-lt); }
.service-hero-breadcrumb span { opacity: 0.5; }
.service-hero h1 { font-size: clamp(2rem, 4vw, 3rem); font-weight: 700; line-height: 1.12; color: #fff; margin-bottom: 20px; max-width: 800px; }
.service-hero h1 em { font-style: normal; color: var(--color-primary-lt); }
.service-hero-sub { font-size: 1.12rem; color: var(--color-text-muted); max-width: 620px; margin-bottom: 36px; line-height: 1.7; }
.service-hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* ── KPIs ── */
.results-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 64px; }
.result-kpi { background: var(--color-bg-card); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: 28px 24px; position: relative; overflow: hidden; }
.result-kpi::before { content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 2px; background: linear-gradient(90deg, var(--color-primary), var(--color-primary-lt)); }
.result-kpi-value { font-size: 2.2rem; font-weight: 700; color: var(--color-primary-lt); line-height: 1; margin-bottom: 8px; }
.result-kpi-label { font-size: 0.88rem; color: var(--color-text-muted); line-height: 1.45; }

/* ── Proceso ── */
.process-list { display: flex; flex-direction: column; gap: 0; }
.process-item { display: grid; grid-template-columns: 56px 1fr; gap: 24px; padding: 36px 0; border-bottom: 1px solid var(--color-border); align-items: start; }
.process-item:last-child { border-bottom: none; }
.process-num { width: 48px; height: 48px; background: rgba(46,109,164,0.14); border: 1px solid rgba(46,109,164,0.3); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 1rem; font-weight: 700; color: var(--color-primary-lt); flex-shrink: 0; }
.process-content h3 { font-size: 1.05rem; font-weight: 700; color: #fff; margin-bottom: 8px; }
.process-content p { font-size: 0.93rem; color: var(--color-text-muted); line-height: 1.65; }

/* ── FAQ ── */
.faq-list { display: flex; flex-direction: column; gap: 0; max-width: 800px; }
.faq-item { border-bottom: 1px solid var(--color-border); }
.faq-question { width: 100%; background: none; border: none; text-align: left; padding: 22px 0; font-size: 1rem; font-weight: 600; color: var(--color-text); cursor: pointer; display: flex; align-items: center; justify-content: space-between; gap: 16px; transition: color var(--transition); }
.faq-question:hover { color: var(--color-primary-lt); }
.faq-icon { width: 24px; height: 24px; border-radius: 50%; background: rgba(46,109,164,0.15); border: 1px solid rgba(46,109,164,0.3); display: flex; align-items: center; justify-content: center; flex-shrink: 0; transition: transform var(--transition), background var(--transition); color: var(--color-primary-lt); font-size: 1rem; line-height: 1; }
.faq-item.open .faq-icon { transform: rotate(45deg); background: rgba(46,109,164,0.25); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.35s ease, padding 0.3s ease; font-size: 0.95rem; color: var(--color-text-muted); line-height: 1.7; }
.faq-item.open .faq-answer { max-height: 600px; padding-bottom: 22px; }

/* ── Otros servicios ── */
.other-services { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.other-service-link { background: var(--color-bg-card); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: 22px 20px; display: flex; flex-direction: column; gap: 8px; transition: border-color var(--transition), transform var(--transition); color: var(--color-text); }
.other-service-link:hover { border-color: rgba(46,109,164,0.5); color: #fff; transform: translateY(-3px); }
.other-service-link .icon { color: var(--color-primary-lt); margin-bottom: 4px; }
.other-service-link .name { font-size: 0.9rem; font-weight: 600; color: #fff; }
.other-service-link .desc { font-size: 0.8rem; color: var(--color-text-muted); line-height: 1.45; }

/* ── CTA final ── */
.cta-block { background: var(--color-bg-card); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: 56px 48px; position: relative; overflow: hidden; }
.cta-block::before { content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 3px; background: linear-gradient(90deg, var(--color-primary), var(--color-primary-lt)); }
.cta-block h2 { font-size: clamp(1.5rem, 2.5vw, 2rem); font-weight: 700; color: #fff; margin-bottom: 12px; }
.cta-block p { font-size: 1.05rem; color: var(--color-text-muted); max-width: 580px; margin-bottom: 28px; }
.cta-actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* ── Footer ── */
footer { background-color: var(--color-bg-alt); border-top: 1px solid var(--color-border); padding: 32px 0; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 16px; }
.footer-copy { font-size: 0.82rem; color: var(--color-text-muted); }
.footer-links { display: flex; gap: 24px; }
.footer-links a { font-size: 0.82rem; color: var(--color-text-muted); }
.footer-links a:hover { color: var(--color-primary-lt); }

/* ── Utilidades ── */
.chip { font-size: 0.75rem; font-weight: 500; padding: 4px 12px; border-radius: 999px; background: rgba(46,109,164,0.18); border: 1px solid rgba(46,109,164,0.3); color: var(--color-primary-lt); display: inline-block; }
.chips-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.highlight-block { background: rgba(46,109,164,0.08); border-left: 3px solid var(--color-primary); border-radius: 0 var(--radius) var(--radius) 0; padding: 20px 24px; margin: 28px 0; }
.highlight-block p { font-size: 0.97rem; color: var(--color-text-muted); font-style: italic; line-height: 1.65; }

/* ── Dos columnas ── */
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; margin-top: 48px; }
.two-col-card { background: var(--color-bg-card); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: 32px; }
.two-col-card h3 { font-size: 1rem; font-weight: 700; color: #fff; margin-bottom: 20px; }
.two-col-card ul { list-style: none; display: flex; flex-direction: column; gap: 12px; }
.two-col-card ul li { font-size: 0.93rem; color: var(--color-text-muted); padding-left: 24px; position: relative; line-height: 1.5; }
.two-col-card ul li::before { content: attr(data-icon); position: absolute; left: 0; }

/* ── Grid de módulos ── */
.modules-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-top: 48px; }
.module-card { background: var(--color-bg-card); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: 28px 24px; }
.module-card h3 { font-size: 1rem; font-weight: 700; color: #fff; margin-bottom: 8px; }
.module-card p { font-size: 0.88rem; color: var(--color-text-muted); line-height: 1.55; margin-bottom: 12px; }
.module-meta { font-size: 0.78rem; color: var(--color-text-muted); border-top: 1px solid var(--color-border); padding-top: 12px; margin-top: 4px; display: flex; flex-direction: column; gap: 4px; }
.module-meta span { display: block; }

/* ── Responsive ── */
@media (max-width: 900px) {
  .results-grid { grid-template-columns: 1fr 1fr; }
  .other-services { grid-template-columns: 1fr 1fr; }
  .two-col { grid-template-columns: 1fr; }
  .modules-grid { grid-template-columns: 1fr; }
}
@media (max-width: 680px) {
  .section { padding: 64px 0; }
  .service-hero { padding: 110px 0 64px; }
  .results-grid { grid-template-columns: 1fr; }
  .other-services { grid-template-columns: 1fr; }
  .process-item { grid-template-columns: 44px 1fr; gap: 16px; }
  .cta-block { padding: 36px 24px; }
  .nav-links, .nav-cta { display: none; }
  .nav-toggle { display: flex; }
}