/* COPAL México — theme over Minimalist Designs tokens.
   Industrial blue identity (afín a US Plast). Shared chrome for all pages. */

:root {
  --copal-blue: #1D4ED8;      /* industrial blue — primary accent */
  --copal-blue-deep: #17368F;
  --copal-blue-soft: #EDF2FE;
  --copal-blue-100: #DBE5FD;
  --copal-blue-300: #93B0F6;
  --copal-ink: #0B0D12;
  --accent-600: var(--copal-blue);
  --accent-700: var(--copal-blue-deep);
  --accent-50: var(--copal-blue-soft);
  --accent-200: var(--copal-blue-100);
  --text-accent: var(--copal-blue);
  --border-accent: var(--copal-blue);
  --cta-accent-bg: var(--copal-blue);
  --cta-accent-bg-hover: var(--copal-blue-deep);
  --link: var(--copal-blue);
  --gradient-hero: radial-gradient(120% 90% at 70% 0%, var(--copal-blue-soft) 0%, rgba(237, 242, 254, 0) 55%);
  --gradient-accent-text: linear-gradient(92deg, var(--copal-blue), #4E79E8);
}

/* ---------- shared chrome ---------- */
.wordmark { font-weight: 600; letter-spacing: -0.03em; font-size: 19px; color: var(--text-primary); text-decoration: none; }
.wordmark b { color: var(--copal-blue); font-weight: 600; }
.wordmark:hover { text-decoration: none; }

.copal-nav { position: sticky; top: 0; z-index: 50; display: flex; justify-content: space-between; align-items: center; gap: 24px; height: 68px; padding: 0 var(--container-pad); background: var(--glass-bg-strong); backdrop-filter: blur(var(--glass-blur)); -webkit-backdrop-filter: blur(var(--glass-blur)); border-bottom: 1px solid var(--border-subtle); }
.copal-nav .links { display: flex; gap: 28px; }
.copal-nav .links a { font-size: var(--text-sm); font-weight: 500; color: var(--text-secondary); text-decoration: none; transition: color var(--duration-fast) var(--ease-swift); }
.copal-nav .links a:hover, .copal-nav .links a[aria-current="page"] { color: var(--text-primary); }
.copal-nav .cta-group { display: flex; gap: 10px; align-items: center; }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; border-radius: var(--radius-sm); padding: 13px 22px; font: 500 var(--text-md)/1 var(--font-sans); letter-spacing: -0.01em; cursor: pointer; border: 1px solid transparent; text-decoration: none; transition: all var(--duration-fast) var(--ease-swift); white-space: nowrap; }
.btn:hover { text-decoration: none; transform: translateY(-1px); box-shadow: var(--shadow-sm); }
.btn:active { transform: scale(0.98); }
.btn.sm { padding: 9px 16px; font-size: var(--text-xs); }
.btn.lg { padding: 15px 26px; font-size: var(--text-md); }
.btn.ink { background: var(--cta-bg); color: var(--cta-fg); }
.btn.ink:hover { background: var(--cta-bg-hover); }
.btn.blue { background: var(--copal-blue); color: #fff; }
.btn.blue:hover { background: var(--copal-blue-deep); }
.btn.outline { background: var(--surface-card); color: var(--text-primary); border-color: var(--border-default); }
.btn.outline:hover { background: var(--surface-subtle); }
.btn.wa { background: #1FAF57; color: #fff; }
.btn.wa:hover { background: #178A44; }

.container { max-width: var(--container-max); margin: 0 auto; padding-left: var(--container-pad); padding-right: var(--container-pad); }
.eyebrow { font: 500 var(--text-label) var(--font-mono); letter-spacing: var(--tracking-label); text-transform: uppercase; color: var(--copal-blue); }
.section { padding: var(--section-y-sm) 0; }

/* footer */
.copal-footer { background: var(--gradient-ink); color: #F4F6FA; padding: var(--space-20) var(--container-pad) var(--space-8); }
.copal-footer a { color: #9AA3B2; text-decoration: none; font-size: var(--text-sm); }
.copal-footer a:hover { color: #fff; }
.copal-footer .cols { max-width: var(--container-max); margin: 0 auto; display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px; }
.copal-footer .col-title { font: 500 var(--text-label) var(--font-mono); letter-spacing: var(--tracking-label); text-transform: uppercase; color: #6B7484; }
.copal-footer .legal { max-width: var(--container-max); margin: 64px auto 0; padding-top: 24px; border-top: 1px solid rgba(255,255,255,.07); display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; font-size: var(--text-xs); color: #6B7484; }

/* sticky WhatsApp */
.wa-fab { position: fixed; right: 22px; bottom: 22px; z-index: 90; width: 56px; height: 56px; border-radius: 50%; background: #1FAF57; display: flex; align-items: center; justify-content: center; box-shadow: var(--shadow-lg); transition: transform var(--duration-fast) var(--ease-swift), box-shadow var(--duration-fast) var(--ease-swift); }
.wa-fab:hover { transform: translateY(-2px) scale(1.04); box-shadow: var(--shadow-xl); text-decoration: none; }

/* reveal-on-scroll — visible by default; hidden ONLY when JS confirms animation can run (html.js-anim) */
html.js-anim .rv { opacity: 0; transform: translateY(24px); }
html.js-anim .rv.in { opacity: 1; transform: none; transition: opacity .7s var(--ease-out), transform .7s var(--ease-out); }
@media print { html.js-anim .rv, html.js-hero .h-rv { opacity: 1 !important; transform: none !important; } }

/* cards */
.copal-card { background: var(--surface-card); border: 1px solid var(--border-default); border-radius: var(--radius-lg); box-shadow: var(--shadow-card); padding: 32px; transition: box-shadow var(--duration-base) var(--ease-out), transform var(--duration-base) var(--ease-out); }
.copal-card:hover { box-shadow: var(--shadow-card-hover); transform: translateY(-2px); }

@media (max-width: 900px) {
  .copal-nav .links { display: none; }
  .copal-footer .cols { grid-template-columns: 1fr 1fr; }
}