/* ═══════════════════════════════════════════════
   Maxx Dosing Systems — Premium CSS
   Agua Instruments
   Matches site-wide design system
   ═══════════════════════════════════════════════ */

/* ── TOKENS ── */
:root {
  --agua-navy:    #0b2e4e;
  --agua-blue:    #0d7abf;
  --agua-blue-lt: #1a9be0;
  --agua-teal:    #0fa891;
  --agua-teal-lt: #17c9ae;
  --agua-white:   #ffffff;
  --agua-off:     #f0f6fb;
  --agua-surface: #e8f3fb;
  --agua-text:    #0f2035;
  --agua-muted:   #4a6580;
  --agua-border:  rgba(13, 122, 191, 0.15);

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;

  --shadow-sm: 0 2px 10px rgba(11,46,78,0.08);
  --shadow-md: 0 6px 24px rgba(11,46,78,0.12);
  --shadow-lg: 0 16px 48px rgba(11,46,78,0.18);

  --transition: 0.3s cubic-bezier(0.4,0,0.2,1);

  --font-display: 'Montserrat','Segoe UI',sans-serif;
  --font-body:    'Montserrat','Segoe UI',sans-serif;
}

/* ── RESET & BASE ── */
*, *::before, *::after { box-sizing: border-box; }

body {
  font-family: var(--font-body);
  color: var(--agua-text);
  background: var(--agua-off);
  -webkit-font-smoothing: antialiased;
  margin: 0;
  padding: 0;
}

/* ═══════════════════════════════════════════════
   HERO IMAGE
═══════════════════════════════════════════════ */
#mydiv {
  position: relative;
  overflow: hidden;
  margin-top: 68px;
}

#mydiv img {
  width: 100%;
  height: 50vh;
  object-fit: cover;
  object-position: center;
  display: block;
  filter: brightness(0.75);
}

#mydiv::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    transparent 30%,
    rgba(11,46,78,0.65) 100%
  );
  pointer-events: none;
}

/* ═══════════════════════════════════════════════
   SECTION WRAPPER
═══════════════════════════════════════════════ */
#section12 {
  top: 0 !important;
}

#section12 > .container {
  max-width: 1140px;
  margin: 2.5rem auto;
  padding: 0 1.5rem 4rem;
}

/* ═══════════════════════════════════════════════
   PAGE TITLE
═══════════════════════════════════════════════ */
/* Override inline text-danger + font-size */
h5.text-center.text-danger {
  font-family: var(--font-display) !important;
  font-size: 2rem !important;
  font-weight: 700 !important;
  color: var(--agua-navy) !important;
  text-align: center !important;
  margin: 2rem 0 2.5rem !important;
  position: relative;
  padding-bottom: 1rem;
  letter-spacing: -0.01em;
}

h5.text-center.text-danger::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--agua-blue), var(--agua-teal));
  border-radius: 2px;
}

/* ═══════════════════════════════════════════════
   TWO-COLUMN LAYOUT
═══════════════════════════════════════════════ */
#section12 .container .row {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 3rem;
  align-items: flex-start;
}

/* ═══════════════════════════════════════════════
   CONTENT COLUMN (left)
═══════════════════════════════════════════════ */
#section12 .container .row > .col:first-child {
  display: flex;
  flex-direction: column;
  gap: 0;
}

/* ── System block card ── */
#section12 .container .row > .col:first-child > h6,
#section12 .container .row > .col:first-child > p,
#section12 .container .row > .col:first-child > ul {
  /* group into visual blocks via sibling spacing */
}

/* Main system heading (Vacuum system, Flow-through System) */
#section12 .container h6 b {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--agua-navy);
}

#section12 .container h6:has(b:not(:contains("Main"))) {
  margin-top: 2rem;
}

/* Wrap each system in a visual card using CSS */
/* System name headings get top-level styling */
#section12 .col > h6:first-of-type,
#section12 .col > p > h6 {
  border: none;
}

/* Body paragraphs */
#section12 .col > p {
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--agua-muted);
  margin-bottom: 0.85rem;
}

/* ── Sub-section blocks ── */
/* Each system block: name h6 + description p + "Main functions" h6 + ul */
.dosing-block {
  background: var(--agua-white);
  border: 1px solid var(--agua-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: 1.75rem 2rem 1.5rem;
  margin-bottom: 1.5rem;
  position: relative;
  overflow: hidden;
  transition: box-shadow var(--transition), transform var(--transition);
}

.dosing-block::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(to bottom, var(--agua-blue), var(--agua-teal));
  border-radius: var(--radius-lg) 0 0 var(--radius-lg);
}

.dosing-block:hover {
  box-shadow: var(--shadow-md);
  transform: translateX(4px);
}

.dosing-block-title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--agua-navy);
  margin: 0 0 0.75rem;
  display: flex;
  align-items: center;
  gap: 10px;
}

.dosing-block-title::before {
  content: '';
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--agua-blue), var(--agua-teal));
  flex-shrink: 0;
}

.dosing-block-desc {
  font-size: 15px;
  line-height: 1.85;
  color: var(--agua-muted);
  margin: 0 0 1.25rem;
}

.dosing-block-sub {
  font-family: var(--font-display);
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--agua-blue);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin: 0 0 0.75rem;
}

/* ── Lists inside blocks ── */
.dosing-list {
  list-style: none;
  padding: 0;
  margin: 0;
  border: 1px solid var(--agua-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--agua-off);
}

.dosing-list li {
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--agua-muted);
  padding: 9px 1rem 9px 2.25rem;
  position: relative;
  border-bottom: 1px solid var(--agua-border);
  transition: background var(--transition), color var(--transition), padding-left var(--transition);
}

.dosing-list li:last-child {
  border-bottom: none;
}

.dosing-list li:hover {
  background: var(--agua-surface);
  color: var(--agua-text);
  padding-left: 2.75rem;
}

.dosing-list li::before {
  content: '';
  position: absolute;
  left: 0.7rem;
  top: 50%;
  transform: translateY(-50%);
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--agua-blue), var(--agua-teal));
  transition: transform var(--transition);
}

.dosing-list li:hover::before {
  transform: translateY(-50%) scale(1.4);
}

/* ── Fallback: style existing ul tags directly ── */
#section12 .col > ul {
  list-style: none;
  padding: 0;
  margin: 0 0 1.5rem;
  border: 1px solid var(--agua-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--agua-off);
}

#section12 .col > ul li {
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--agua-muted);
  padding: 9px 1rem 9px 2.25rem;
  position: relative;
  border-bottom: 1px solid var(--agua-border);
  transition: background var(--transition), color var(--transition), padding-left var(--transition);
}

#section12 .col > ul li:last-child {
  border-bottom: none;
}

#section12 .col > ul li:hover {
  background: var(--agua-surface);
  color: var(--agua-text);
  padding-left: 2.75rem;
}

#section12 .col > ul li::before {
  content: '';
  position: absolute;
  left: 0.7rem;
  top: 50%;
  transform: translateY(-50%);
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--agua-blue), var(--agua-teal));
  transition: transform var(--transition);
}

#section12 .col > ul li:hover::before {
  transform: translateY(-50%) scale(1.4);
}

/* ── h6 headings ── */
#section12 .col > h6 {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--agua-navy);
  margin: 1.75rem 0 0.65rem;
  display: flex;
  align-items: center;
  gap: 10px;
}

#section12 .col > h6::before {
  content: '';
  display: inline-block;
  width: 4px;
  height: 1em;
  background: linear-gradient(to bottom, var(--agua-blue), var(--agua-teal));
  border-radius: 2px;
  flex-shrink: 0;
}

/* ═══════════════════════════════════════════════
   IMAGE COLUMN (right)
═══════════════════════════════════════════════ */
#section12 .container .row > .col:last-child {
  position: sticky;
  top: 90px;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

#section12 .container .row > .col:last-child img {
  width: 100% !important;
  height: 220px !important;
  object-fit: cover !important;
  border-radius: var(--radius-md) !important;
  box-shadow: var(--shadow-md) !important;
  border: 1px solid var(--agua-border) !important;
  margin: 0 !important;
  display: block !important;
  transition: transform var(--transition), box-shadow var(--transition) !important;
}

#section12 .container .row > .col:last-child img:hover {
  transform: translateY(-4px) scale(1.01);
  box-shadow: var(--shadow-lg) !important;
}

/* image labels */
#section12 .container .row > .col:last-child .img-wrap {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
}

/* ═══════════════════════════════════════════════
   RESPONSIVE
═══════════════════════════════════════════════ */
@media (max-width: 1024px) {
  #section12 .container .row {
    grid-template-columns: 1fr 300px;
    gap: 2rem;
  }
}

@media (max-width: 900px) {
  #section12 .container .row {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  #section12 .container .row > .col:last-child {
    position: static;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
  }

  #section12 .container .row > .col:last-child img {
    height: 180px !important;
  }
}

@media (max-width: 720px) {
  #mydiv {
    margin-top: 60px;
  }

  #mydiv img {
    height: 35vh;
  }

  #section12 > .container {
    padding: 0 0.75rem 3rem;
    margin: 1.5rem auto;
  }

  h5.text-center.text-danger {
    font-size: 1.5rem !important;
    margin: 1.5rem 0 2rem !important;
  }

  .dosing-block {
    padding: 1.25rem 1.25rem 1rem;
  }

  .dosing-block-title {
    font-size: 0.98rem;
  }

  .dosing-block-desc,
  #section12 .col > p {
    font-size: 14.5px;
  }

  #section12 .col > ul li,
  .dosing-list li {
    font-size: 14px;
    padding: 9px 0.75rem 9px 2rem;
  }

  #section12 .container .row > .col:last-child {
    grid-template-columns: 1fr;
  }

  #section12 .container .row > .col:last-child img {
    height: 220px !important;
    max-width: 400px;
    margin: 0 auto !important;
  }
}

@media (max-width: 480px) {
  h5.text-center.text-danger {
    font-size: 1.3rem !important;
  }

  .dosing-block {
    padding: 1rem;
  }

  #section12 .container .row > .col:last-child img {
    height: 190px !important;
  }
}

/* ═══════════════════════════════════════════════
   PRINT
═══════════════════════════════════════════════ */
@media print {
  #mydiv { display: none; }

  #section12 .container .row {
    grid-template-columns: 1fr;
  }

  .dosing-block {
    box-shadow: none;
    border: 1px solid #ccc;
    page-break-inside: avoid;
  }

  #section12 .container .row > .col:last-child img {
    box-shadow: none !important;
    border: 1px solid #ccc !important;
  }
}