/* Pureza Auditiva - Bespoke Sapphire & Crystal Cobalt Stylesheet */
:root {
  --pa-primary: #1e1b4b;
  --pa-primary-dark: #0f172a;
  --pa-primary-light: #312e81;
  --pa-accent: #4338ca;
  --pa-accent-hover: #3730a3;
  --pa-accent-light: #e0e7ff;
  --pa-indigo: #6366f1;
  --pa-cyan-soft: #c7d2fe;
  --pa-bg: #f8fafc;
  --pa-card-bg: #ffffff;
  --pa-text: #334155;
  --pa-text-dark: #0f172a;
  --pa-text-muted: #64748b;
  --pa-border: #e2e8f0;
  --pa-radius-sm: 8px;
  --pa-radius-md: 14px;
  --pa-radius-lg: 20px;
  --pa-shadow: 0 4px 20px -2px rgba(30, 27, 75, 0.05);
  --pa-shadow-hover: 0 12px 30px -4px rgba(30, 27, 75, 0.12);
  --pa-font: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: var(--pa-font); background-color: var(--pa-bg); color: var(--pa-text); line-height: 1.7; font-size: 16px; -webkit-font-smoothing: antialiased; }
a { color: var(--pa-accent); text-decoration: none; transition: color 0.2s ease; }
a:hover { color: var(--pa-accent-hover); }
.pa-container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* Top Banner */
.pa-top-banner { background: var(--pa-primary); color: #c7d2fe; font-size: 13px; padding: 9px 0; text-align: center; }
.pa-top-banner a { color: #ffffff; margin-left: 8px; font-weight: 600; text-decoration: underline; }

/* Header & Navigation */
.pa-header { background: rgba(255, 255, 255, 0.97); backdrop-filter: blur(12px); border-bottom: 1px solid var(--pa-border); position: sticky; top: 0; z-index: 100; }
.pa-nav-inner { display: flex; justify-content: space-between; align-items: center; height: 76px; }
.pa-brand { display: flex; align-items: center; gap: 12px; color: var(--pa-primary); font-weight: 800; font-size: 23px; letter-spacing: -0.5px; }
.pa-brand-icon { width: 42px; height: 42px; background: linear-gradient(135deg, var(--pa-indigo), var(--pa-primary)); border-radius: var(--pa-radius-sm); display: flex; align-items: center; justify-content: center; color: #fff; font-size: 20px; font-weight: bold; }
.pa-brand span { color: var(--pa-accent); }
.pa-nav-links { display: flex; gap: 28px; list-style: none; align-items: center; }
.pa-nav-links a { color: var(--pa-text); font-weight: 600; font-size: 15px; padding: 6px 0; }
.pa-nav-links a:hover, .pa-nav-links a.active { color: var(--pa-accent); }
.pa-btn-cta { background: var(--pa-accent); color: #fff !important; padding: 10px 22px !important; border-radius: var(--pa-radius-sm); font-weight: 600; transition: all 0.2s ease; display: inline-flex; align-items: center; justify-content: center; }
.pa-btn-cta:hover { background: var(--pa-accent-hover); transform: translateY(-1px); }
.pa-mobile-toggle { display: none; background: none; border: none; font-size: 26px; cursor: pointer; color: var(--pa-primary); }

/* Hero */
.pa-hero { padding: 64px 0 48px; background: linear-gradient(180deg, #ffffff 0%, var(--pa-bg) 100%); border-bottom: 1px solid var(--pa-border); }
.pa-hero-content { max-width: 860px; margin: 0 auto; text-align: center; }
.pa-badge { display: inline-flex; align-items: center; gap: 8px; background: var(--pa-accent-light); color: var(--pa-accent-hover); padding: 6px 16px; border-radius: 9999px; font-size: 13px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 20px; }
.pa-hero-title { font-size: 42px; font-weight: 800; color: var(--pa-primary); line-height: 1.2; letter-spacing: -1px; margin-bottom: 20px; }
.pa-hero-desc { font-size: 18.5px; color: var(--pa-text-muted); line-height: 1.65; margin-bottom: 32px; }

/* Bento Grid */
.pa-bento-grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: 24px; margin: 48px 0; }
.pa-bento-card { background: var(--pa-card-bg); border: 1px solid var(--pa-border); border-radius: var(--pa-radius-md); padding: 32px; transition: all 0.3s ease; display: flex; flex-direction: column; justify-content: space-between; box-shadow: var(--pa-shadow); }
.pa-bento-card:hover { transform: translateY(-4px); box-shadow: var(--pa-shadow-hover); border-color: #c7d2fe; }
.pa-col-8 { grid-column: span 8; }
.pa-col-4 { grid-column: span 4; }
.pa-col-6 { grid-column: span 6; }
.pa-col-12 { grid-column: span 12; }
.pa-card-tag { display: inline-block; font-size: 12px; font-weight: 700; color: var(--pa-accent-hover); background: var(--pa-accent-light); padding: 4px 10px; border-radius: 6px; margin-bottom: 16px; width: fit-content; }
.pa-card-title { font-size: 21px; font-weight: 700; color: var(--pa-primary); margin-bottom: 12px; line-height: 1.35; }
.pa-card-title a { color: var(--pa-primary); }
.pa-card-title a:hover { color: var(--pa-accent); }
.pa-card-text { font-size: 15px; color: var(--pa-text); line-height: 1.65; margin-bottom: 20px; }
.pa-card-meta { display: flex; align-items: center; gap: 14px; font-size: 13px; color: var(--pa-text-muted); border-top: 1px solid var(--pa-border); padding-top: 16px; margin-top: auto; }

/* Article & Content Layout */
.pa-article-wrapper { display: grid; grid-template-columns: 8fr 4fr; gap: 40px; padding: 56px 0; }
.pa-article-main { background: #ffffff; border: 1px solid var(--pa-border); border-radius: var(--pa-radius-md); padding: 44px; box-shadow: var(--pa-shadow); }
.pa-article-header { border-bottom: 1px solid var(--pa-border); padding-bottom: 24px; margin-bottom: 32px; }
.pa-article-title { font-size: 34px; font-weight: 800; color: var(--pa-primary); line-height: 1.25; margin: 14px 0; letter-spacing: -0.5px; }
.pa-fact-badge { display: inline-flex; align-items: center; gap: 8px; background: #e0e7ff; border: 1px solid #c7d2fe; color: #3730a3; font-size: 13px; font-weight: 600; padding: 6px 14px; border-radius: 6px; margin-bottom: 14px; }
.pa-article-meta { font-size: 14px; color: var(--pa-text-muted); display: flex; gap: 16px; flex-wrap: wrap; }
.pa-article-body h2 { font-size: 23px; font-weight: 700; color: var(--pa-primary); margin: 36px 0 16px; line-height: 1.35; }
.pa-article-body h3 { font-size: 19px; font-weight: 700; color: var(--pa-primary-light); margin: 24px 0 12px; }
.pa-article-body p { margin-bottom: 20px; font-size: 16px; color: #334155; line-height: 1.75; }
.pa-article-body ul, .pa-article-body ol { margin: 0 0 24px 28px; }
.pa-article-body li { margin-bottom: 10px; line-height: 1.65; font-size: 15.5px; color: #334155; }
.pa-callout { background: #eef2ff; border-left: 4px solid var(--pa-accent); padding: 22px 26px; border-radius: 0 var(--pa-radius-sm) var(--pa-radius-sm) 0; margin: 32px 0; }
.pa-callout-title { font-weight: 700; color: var(--pa-accent-hover); margin-bottom: 8px; font-size: 16px; }
.pa-callout p { margin: 0; font-size: 15px; color: #1e1b4b; }
.pa-disclaimer-box { background: #fffbeb; border: 1px solid #fef3c7; border-radius: var(--pa-radius-sm); padding: 22px; margin: 36px 0; }
.pa-disclaimer-box h4 { color: #92400e; font-size: 15px; font-weight: 700; margin-bottom: 8px; }
.pa-disclaimer-box p { color: #78350f; font-size: 14px; line-height: 1.6; margin-bottom: 0; }
.pa-sources-box { background: #f8fafc; border: 1px solid var(--pa-border); border-radius: var(--pa-radius-sm); padding: 24px; margin-top: 40px; }
.pa-sources-box h4 { font-size: 16px; font-weight: 700; color: var(--pa-primary); margin-bottom: 14px; }
.pa-sources-box ol { margin-left: 20px; color: var(--pa-text-muted); font-size: 13.5px; }
.pa-sources-box li { margin-bottom: 8px; }

/* Sidebar */
.pa-sidebar-widget { background: #ffffff; border: 1px solid var(--pa-border); border-radius: var(--pa-radius-md); padding: 28px; margin-bottom: 28px; box-shadow: var(--pa-shadow); }
.pa-widget-title { font-size: 18px; font-weight: 700; color: var(--pa-primary); margin-bottom: 18px; border-bottom: 2px solid var(--pa-accent-light); padding-bottom: 8px; }
.pa-sidebar-links { list-style: none; }
.pa-sidebar-links li { margin-bottom: 14px; padding-bottom: 14px; border-bottom: 1px solid var(--pa-border); }
.pa-sidebar-links li:last-child { margin-bottom: 0; padding-bottom: 0; border-bottom: none; }
.pa-sidebar-links a { color: var(--pa-text); font-weight: 600; font-size: 14.5px; display: block; }
.pa-sidebar-links a:hover { color: var(--pa-accent); }

/* Forms */
.pa-form-group { margin-bottom: 20px; }
.pa-form-label { display: block; font-weight: 600; font-size: 14.5px; color: var(--pa-primary); margin-bottom: 6px; }
.pa-form-input, .pa-form-textarea { width: 100%; padding: 12px 16px; border: 1px solid var(--pa-border); border-radius: var(--pa-radius-sm); font-family: var(--pa-font); font-size: 15px; outline: none; transition: border-color 0.2s; }
.pa-form-input:focus, .pa-form-textarea:focus { border-color: var(--pa-accent); }
.pa-form-textarea { resize: vertical; min-height: 130px; }

/* Footer */
.pa-footer { background: var(--pa-primary-dark); color: #cbd5e1; padding: 64px 0 32px; border-top: 1px solid var(--pa-border); margin-top: 64px; }
.pa-footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.5fr; gap: 40px; margin-bottom: 48px; }
.pa-footer-col h4 { color: #ffffff; font-size: 16px; font-weight: 700; margin-bottom: 20px; }
.pa-footer-links { list-style: none; }
.pa-footer-links li { margin-bottom: 12px; }
.pa-footer-links a { color: #94a3b8; font-size: 14.5px; }
.pa-footer-links a:hover { color: #818cf8; }
.pa-footer-corp-box { background: rgba(255, 255, 255, 0.05); border: 1px solid rgba(255, 255, 255, 0.1); padding: 18px; border-radius: var(--pa-radius-sm); font-size: 13px; color: #c7d2fe; line-height: 1.6; }
.pa-footer-bottom { border-top: 1px solid rgba(255, 255, 255, 0.1); padding-top: 28px; display: flex; justify-content: space-between; align-items: center; font-size: 13px; color: #64748b; }

/* Cookie Banner */
.pa-cookie-banner { position: fixed; bottom: 24px; left: 24px; right: 24px; max-width: 520px; background: #ffffff; border: 1px solid var(--pa-border); border-radius: var(--pa-radius-md); box-shadow: 0 20px 40px rgba(30, 27, 75, 0.15); padding: 24px; z-index: 999; display: none; }
.pa-cookie-banner.active { display: block; }
.pa-cookie-actions { display: flex; gap: 12px; margin-top: 16px; }

/* Responsive */
@media (max-width: 992px) {
  .pa-article-wrapper { grid-template-columns: 1fr; }
  .pa-col-8, .pa-col-4, .pa-col-6 { grid-column: span 12; }
  .pa-footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .pa-nav-links { display: none; flex-direction: column; position: absolute; top: 76px; left: 0; right: 0; background: #ffffff; padding: 24px; border-bottom: 1px solid var(--pa-border); box-shadow: 0 10px 20px rgba(0,0,0,0.05); }
  .pa-nav-links.open { display: flex; }
  .pa-mobile-toggle { display: block; }
  .pa-hero-title { font-size: 32px; }
  .pa-footer-grid { grid-template-columns: 1fr; }
  .pa-footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
  .pa-article-main { padding: 24px; }
}