/* ==========================================================================
   FUNDACIÓN ENKI SPEAKS · HIDROGEOLOGÍA (enkispeaks.org)
   100% Bespoke Hydrogeology & Hydraulic Flume Architecture
   Palette: Glacial Aqua (#EFF6F8), Deep Phreatic Teal (#065F73), Cyan (#0284C7),
            Piezometer Emerald (#0D9488), Bedrock Slate (#082431)
   Zero '$' symbols anywhere.
   ========================================================================== */

:root {
  --bg-aqua: #EFF6F8;
  --bg-stratum: #E1EEF2;
  --bg-card: #FFFFFF;
  --teal-deep: #065F73;
  --teal-dark: #062C38;
  --cyan-flow: #0284C7;
  --emerald-piezo: #0D9488;
  --slate-ink: #082431;
  --slate-body: #274452;
  --slate-muted: #52707E;
  --border-hydro: #BDDAE3;
  --font-display: 'Space Grotesk', sans-serif;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--bg-aqua);
  color: var(--slate-ink);
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-aqua);
  color: var(--slate-ink);
  line-height: 1.65;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, .hero-title, .section-title {
  font-family: var(--font-display);
  color: var(--slate-ink);
  font-weight: 700;
  line-height: 1.12;
  text-wrap: balance;
}

p, li { text-wrap: pretty; color: var(--slate-body); }
a { color: var(--teal-deep); text-decoration: none; transition: all 0.2s ease; }
a:hover { color: var(--cyan-flow); }
:focus-visible { outline: 3px solid var(--cyan-flow); outline-offset: 3px; }
img { max-width: 100%; height: auto; display: block; }

.container { width: 100%; max-width: 1280px; margin: 0 auto; padding: 0 24px; }
.skip-link { position: absolute; top: -100px; left: 16px; background: var(--teal-deep); color: #FFF; padding: 12px 20px; z-index: 9999; }
.skip-link:focus { top: 16px; }

/* ==========================================================================
   UNIQUE HEADER: WHITE SCIENTIFIC BAR WITH WAVE-GRADIENT BORDER & CAPSULE
   ========================================================================== */
.eso-hydro-header {
  background: #FFFFFF;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 10px 30px rgba(8, 36, 49, 0.06);
}

.eso-wave-line {
  height: 5px;
  background: linear-gradient(90deg, #065F73 0%, #0284C7 50%, #0D9488 100%);
}

.eso-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  gap: 10px;
}

.eso-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--slate-ink) !important;
}

.eso-water-badge {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: linear-gradient(135deg, #065F73 0%, #0284C7 100%);
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.9rem;
}

.eso-brand strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.04rem;
  letter-spacing: -0.02em;
  color: var(--slate-ink);
  white-space: nowrap;
}

.eso-brand small {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--cyan-flow);
  font-weight: 600;
  white-space: nowrap;
}

.eso-pill-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}

.eso-pill-nav a {
  padding: 7px 9px;
  border-radius: 8px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--slate-body);
  white-space: nowrap;
}

.eso-pill-nav a:hover,
.eso-pill-nav a.active {
  background: var(--bg-stratum);
  color: var(--teal-deep);
}

.eso-dual-capsule {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  background: var(--bg-stratum);
  border: 1px solid var(--border-hydro);
  padding: 4px 4px 4px 14px;
  gap: 10px;
}

.eso-depth-tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--teal-deep);
  white-space: nowrap;
}

.eso-capsule-btn {
  background: var(--teal-deep) !important;
  color: #FFFFFF !important;
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 700;
  white-space: nowrap;
}

.eso-capsule-btn:hover { background: var(--cyan-flow) !important; }

#mobileMenuToggle {
  display: none;
  min-height: 44px;
  min-width: 44px;
  background: var(--teal-deep);
  color: #FFFFFF;
  border: none;
  border-radius: 8px;
}
#mobileDrawer { display: none; background: #FFF; padding: 16px 24px; border-top: 1px solid var(--border-hydro); }
#mobileDrawer.is-open { display: block; }
.mobile-nav-list { list-style: none; display: flex; flex-direction: column; gap: 8px; }

/* Buttons */
.btn-primary {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 46px; padding: 12px 24px; border-radius: 10px;
  background: var(--teal-deep); color: #FFFFFF !important;
  font-weight: 700; font-size: 0.9rem; border: 2px solid var(--teal-deep); cursor: pointer;
}
.btn-primary:hover { background: var(--cyan-flow); border-color: var(--cyan-flow); }

.btn-outline {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 46px; padding: 12px 24px; border-radius: 10px;
  background: #FFFFFF; color: var(--teal-deep) !important;
  font-weight: 700; font-size: 0.9rem; border: 2px solid var(--teal-deep); cursor: pointer;
}

/* ==========================================================================
   UNIQUE HERO: LEFT STRATIGRAPHIC DEPTH RULER + RIGHT FLUME & OVERLAPPING CARDS
   ========================================================================== */
.eso-strat-hero {
  padding: 32px 0 56px;
}

.eso-hero-layout {
  display: grid;
  grid-template-columns: 4.5fr 7.5fr;
  gap: 32px;
  align-items: start;
}

.eso-borehole-col {
  background: #FFFFFF;
  border: 1.5px solid var(--border-hydro);
  border-left: 6px solid var(--cyan-flow);
  border-radius: 0 20px 20px 0;
  padding: 22px 24px;
  box-shadow: 0 16px 40px rgba(6, 95, 115, 0.07);
}

.eso-borehole-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  color: #FFFFFF;
  background: var(--emerald-piezo);
  padding: 4px 10px;
  border-radius: 6px;
  margin-bottom: 12px;
}

.eso-borehole-col h1 {
  font-size: clamp(1.62rem, 2.15vw, 2.05rem);
  margin-bottom: 10px;
}

.eso-borehole-col h1 em {
  color: var(--cyan-flow);
  font-style: normal;
}

.eso-strata-log {
  margin: 18px 0 22px;
  border-left: 2px dashed var(--cyan-flow);
  padding-left: 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.eso-stratum-item {
  background: var(--bg-aqua);
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 0.82rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.eso-stratum-item code {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--teal-deep);
  white-space: nowrap;
  flex-shrink: 0;
  margin-left: 8px;
}

.eso-flume-stage {
  display: flex;
  flex-direction: column;
}

.eso-flume-main-wrap {
  position: relative;
  border-radius: 22px;
  overflow: hidden;
  border: 2px solid var(--teal-deep);
  box-shadow: 0 20px 50px rgba(8, 36, 49, 0.14);
}

.eso-flume-main-wrap img {
  width: 100%;
  height: 410px;
  object-fit: cover;
}

.eso-flume-badge-top {
  position: absolute;
  top: 16px;
  right: 16px;
  background: rgba(8, 36, 49, 0.88);
  backdrop-filter: blur(8px);
  color: #FFFFFF;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid #38BDF8;
}

.eso-overlap-trio {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: -42px;
  padding: 0 16px;
  position: relative;
  z-index: 5;
}

.eso-float-card {
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(10px);
  border: 1.5px solid var(--border-hydro);
  border-top: 4px solid var(--cyan-flow);
  border-radius: 14px;
  padding: 12px;
  box-shadow: 0 14px 30px rgba(8, 36, 49, 0.10);
}

.eso-float-card:nth-child(2) { border-top-color: var(--emerald-piezo); }
.eso-float-card:nth-child(3) { border-top-color: var(--teal-deep); }

.eso-float-card img {
  width: 100%;
  height: 118px;
  object-fit: cover;
  border-radius: 8px;
  margin-bottom: 8px;
}

.eso-float-card small {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--cyan-flow);
  font-weight: 700;
}

.eso-float-card strong {
  display: block;
  font-size: 0.88rem;
  color: var(--slate-ink);
  line-height: 1.25;
}

/* ==========================================================================
   SECTIONS, CALCULATOR & TABLES
   ========================================================================== */
.section-block { padding: 64px 0; }
.section-alt {
  padding: 64px 0;
  background: var(--bg-stratum);
  border-top: 1px solid var(--border-hydro);
  border-bottom: 1px solid var(--border-hydro);
  content-visibility: auto;
  contain-intrinsic-size: auto 520px;
}
.section-header { max-width: 800px; margin-bottom: 36px; }
.section-eyebrow {
  display: inline-block; font-family: var(--font-mono); font-size: 0.75rem;
  font-weight: 700; color: var(--cyan-flow); text-transform: uppercase; margin-bottom: 8px;
}
.section-title { font-size: clamp(1.8rem, 2.6vw, 2.4rem); margin-bottom: 12px; }

.cards-grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.cards-grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 26px; }

.herbarium-card {
  background: #FFFFFF;
  border: 1.5px solid var(--border-hydro);
  border-radius: 16px;
  padding: 26px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.card-code {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--teal-deep);
  background: var(--bg-stratum);
  padding: 3px 10px;
  border-radius: 6px;
  font-weight: 700;
  margin-bottom: 10px;
}

.eso-calc-box {
  background: #FFFFFF;
  border: 2px solid var(--teal-deep);
  border-radius: 20px;
  padding: 34px;
  box-shadow: 0 20px 50px rgba(6, 95, 115, 0.08);
}

.eso-calc-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 28px;
  margin-top: 20px;
}

.form-group { margin-bottom: 14px; }
.form-label { display: block; font-weight: 700; font-size: 0.86rem; margin-bottom: 6px; }
.form-input, .form-select, .form-textarea {
  width: 100%; min-height: 46px; padding: 10px 14px; border-radius: 10px;
  border: 1.5px solid var(--border-hydro); background: var(--bg-aqua); font-family: var(--font-sans); font-size: 0.92rem;
}

.eso-logger-screen {
  background: var(--teal-dark);
  color: #FFFFFF;
  border-radius: 16px;
  padding: 26px;
  border-top: 5px solid var(--emerald-piezo);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.eso-logger-price {
  font-family: var(--font-mono);
  font-size: 2.2rem;
  font-weight: 700;
  color: #38BDF8;
  margin: 8px 0 14px;
}

.table-responsive { overflow-x: auto; }
.technical-table { width: 100%; border-collapse: collapse; background: #FFF; border-radius: 12px; overflow: hidden; border: 1px solid var(--border-hydro); }
.technical-table th { background: var(--teal-deep); color: #FFF; font-family: var(--font-mono); font-size: 0.78rem; padding: 14px 16px; text-align: left; }
.technical-table td { padding: 14px 16px; border-bottom: 1px solid var(--border-hydro); font-size: 0.9rem; }

.accordion-list { display: flex; flex-direction: column; gap: 12px; }
.accordion-item { background: #FFF; border: 1.5px solid var(--border-hydro); border-radius: 12px; overflow: hidden; }
.accordion-header {
  width: 100%; min-height: 50px; padding: 14px 20px; background: none; border: none;
  text-align: left; font-family: var(--font-display); font-size: 1.05rem; font-weight: 700;
  color: var(--slate-ink); display: flex; justify-content: space-between; align-items: center; cursor: pointer;
}
.accordion-body { display: none; padding: 0 20px 18px; font-size: 0.92rem; }
.accordion-item.is-open .accordion-body { display: block; }

.inner-page-hero { background: var(--bg-stratum); padding: 42px 0; border-bottom: 2px solid var(--border-hydro); }
.breadcrumb-nav { font-family: var(--font-mono); font-size: 0.78rem; margin-bottom: 8px; }

.site-footer {
  background: var(--teal-dark);
  color: #E2E8F0;
  padding: 56px 0 68px;
  border-top: 4px solid var(--cyan-flow);
  content-visibility: auto;
  contain-intrinsic-size: auto 520px;
}
.site-footer h3, .site-footer h4 { color: #38BDF8; margin-bottom: 12px; }
.site-footer p, .site-footer li { color: #CBD5E1; font-size: 0.86rem; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.1fr; gap: 28px; margin-bottom: 32px; }
.footer-links { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.footer-links a { color: #E2E8F0; font-size: 0.85rem; }
.footer-regrep-box { background: rgba(255,255,255,0.05); border: 1px solid rgba(56,189,248,0.3); border-radius: 12px; padding: 16px 20px; margin-bottom: 20px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.12); padding-top: 18px; display: flex; justify-content: space-between; flex-wrap: wrap; font-size: 0.8rem; color: #94A3B8; }

.eso-cookie-bar {
  position: fixed; left: 0; right: 0; bottom: 0;
  background: #062C38; color: #F8FAFC; border-top: 2px solid #0284C7;
  padding: 8px 24px; display: flex; align-items: center; justify-content: space-between; gap: 16px; z-index: 9999;
}
.eso-cookie-bar p { color: #E2E8F0; font-size: 0.8rem; margin: 0; }
.eso-cookie-bar a { color: #38BDF8; text-decoration: underline; }
.eso-cookie-btns { display: flex; gap: 10px; flex-shrink: 0; }

@media (max-width: 1024px) {
  .eso-hero-layout, .eso-overlap-trio, .cards-grid-3, .cards-grid-2, .eso-calc-grid, .footer-grid { grid-template-columns: 1fr; }
  .eso-overlap-trio { margin-top: 16px; padding: 0; }
  .eso-pill-nav, .eso-dual-capsule { display: none; }
  #mobileMenuToggle { display: inline-flex; align-items: center; justify-content: center; }
}