/* =====================================================================
   HighPur Water Express — section styles
   ===================================================================== */

/* Content sits over the fixed water; a veil deepens everything below the hero
   so the hero stays the luminous water moment and content reads premium-dark. */
main{
  position:relative; z-index:1;
  background:linear-gradient(180deg,
    transparent 0,
    transparent 94vh,
    rgba(3,13,19,.86) 112vh,
    rgba(2,10,15,.93) 100%);
}
section{ position:relative; }

/* alternating tonal bands + hairline dividers for spec-sheet rhythm */
.creds, .grades, .product, .why, .showcase, .faq{ background:rgba(2,10,15,.4); }
.compare, .services, .process, .quotes, .contact{ background:rgba(8,34,44,.16); }
main > section + section{ border-top:1px solid rgba(127,246,234,.05); }

.section-head{ max-width:var(--maxw); margin:0 auto; padding:0 var(--pad); text-align:center; }
.kicker{
  display:inline-flex; align-items:center; gap:10px;
  font-size:.72rem; letter-spacing:.24em; color:var(--aqua); margin-bottom:18px;
}
.kicker::before, .kicker::after{ content:""; width:26px; height:1px; background:linear-gradient(90deg,transparent,var(--glass-line-2)); }
.kicker::after{ background:linear-gradient(90deg,var(--glass-line-2),transparent); }
.section-title{
  font-family:var(--font-display); font-weight:800;
  font-size:clamp(2rem,4.6vw,3.7rem); line-height:1.0; letter-spacing:-.032em;
  text-wrap:balance; margin-bottom:18px;
}
.section-lead{ color:var(--mist); font-weight:300; font-size:clamp(1.04rem,1.4vw,1.24rem); max-width:56ch; margin:0 auto; line-height:1.62; }

/* =====================================================================
   TRUST BAR
   ===================================================================== */
.trust{ padding:84px var(--pad); text-align:center; }
.trust-label{ font-size:.7rem; letter-spacing:.24em; color:var(--mist-dim); margin-bottom:26px; }
.trust-track{
  display:flex; flex-wrap:wrap; align-items:center; justify-content:center; gap:22px;
  font-family:var(--font-display); font-weight:600;
  font-size:clamp(1.3rem,3.4vw,2.5rem); color:var(--white);
}
.trust-item{ opacity:.84; transition:opacity .3s, color .3s; }
.trust-item:hover{ opacity:1; color:var(--cyan-hi); }
.dotsep{ color:var(--mist-dim); opacity:.4; }

/* =====================================================================
   BEFORE / AFTER COMPARE
   ===================================================================== */
.compare{ padding:80px 0 100px; }
.compare .section-head{ margin-bottom:48px; }
.ba{
  position:relative; max-width:1040px; margin:0 auto; height:min(58vh,520px);
  border-radius:26px; overflow:hidden; border:1px solid var(--glass-line);
  box-shadow:0 30px 80px rgba(2,12,18,.6); user-select:none; touch-action:none;
}
.ba-layer{ position:absolute; inset:0; display:flex; flex-direction:column; justify-content:flex-end; padding:34px; }
.ba-after{
  background:
    radial-gradient(80% 70% at 70% 20%, rgba(127,246,234,.32), transparent 60%),
    linear-gradient(160deg, #0a4f60, #0a3a48 60%, #06222c);
}
.ba-after::before{
  content:""; position:absolute; inset:0; mix-blend-mode:screen; opacity:.5;
  background:radial-gradient(40% 30% at 30% 30%, rgba(234,252,255,.4), transparent 60%);
  animation:driftbg 14s ease-in-out infinite alternate;
}
.ba-before{
  background:
    radial-gradient(70% 60% at 35% 40%, rgba(120,130,120,.5), transparent 65%),
    linear-gradient(160deg, #5b6157, #3c4640 55%, #232a28);
  clip-path:inset(0 50% 0 0);
  filter:saturate(.6);
}
.ba-before::before{
  content:""; position:absolute; inset:0; opacity:.5; mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml;base64,PHN2ZyB4bWxucz0naHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmcnIHdpZHRoPScxMjAnIGhlaWdodD0nMTIwJz48ZmlsdGVyIGlkPSdjJz48ZmVUdXJidWxlbmNlIHR5cGU9J2ZyYWN0YWxOb2lzZScgYmFzZUZyZXF1ZW5jeT0nMC42JyBudW1PY3RhdmVzPSczJy8+PC9maWx0ZXI+PHJlY3Qgd2lkdGg9JzEwMCUnIGhlaWdodD0nMTAwJScgZmlsdGVyPSd1cmwoI2MpJy8+PC9zdmc+");
}
.ba-tag{ font-size:.72rem; letter-spacing:.18em; color:var(--white); opacity:.7; position:absolute; top:24px; left:34px; }
.ba-before .ba-tag{ color:#e8ddc8; }
.ba-ppm{ font-family:var(--font-display); font-weight:800; font-size:clamp(2.6rem,7vw,5rem); line-height:.9; font-variant-numeric:tabular-nums; }
.ba-ppm i{ font-size:.32em; font-style:normal; color:var(--mist); margin-left:8px; vertical-align:baseline; }
.ba-after .ba-ppm{ color:var(--cyan-hi); text-shadow:0 0 30px rgba(39,211,245,.5); }
.ba-before .ba-ppm{ color:#d9cdb4; }
.ba-cap{ font-size:.94rem; color:var(--mist); margin-top:8px; }
.ba-before .ba-cap{ color:#cdbfa3; }

.ba-range{ position:absolute; inset:0; width:100%; height:100%; opacity:0; cursor:ew-resize; z-index:5; margin:0; }
.ba-handle{
  position:absolute; top:0; bottom:0; left:50%; width:2px; transform:translateX(-50%);
  background:linear-gradient(var(--cyan-hi),var(--cyan)); box-shadow:0 0 24px rgba(39,211,245,.8); z-index:4; pointer-events:none;
}
.ba-handle span{
  position:absolute; top:50%; left:50%; transform:translate(-50%,-50%);
  width:50px; height:50px; border-radius:50%; background:rgba(6,29,39,.7); border:2px solid var(--cyan-hi);
  backdrop-filter:blur(6px); box-shadow:0 0 30px rgba(39,211,245,.6);
  display:grid; place-items:center;
}
.ba-handle span::before{ content:"‹ ›"; letter-spacing:2px; color:var(--cyan-hi); font-size:.9rem; }

/* =====================================================================
   SERVICES GRID
   ===================================================================== */
.services{ padding:90px 0; }
.services .section-head{ margin-bottom:54px; }
.svc-grid{
  max-width:var(--maxw); margin:0 auto; padding:0 var(--pad);
  display:grid; grid-template-columns:repeat(3,1fr); gap:18px;
}
.svc-card{
  position:relative; border-radius:20px; padding:30px 26px; overflow:hidden;
  transition:transform .4s var(--ease), border-color .4s, box-shadow .4s;
}
.svc-card::before{
  content:""; position:absolute; inset:0; opacity:0; transition:opacity .4s;
  background:radial-gradient(120% 90% at var(--mx,50%) var(--my,0%), rgba(39,211,245,.18), transparent 55%);
}
.svc-card:hover, .svc-card:focus-visible{ transform:translateY(-6px); border-color:var(--glass-line-2); box-shadow:0 30px 70px rgba(2,12,18,.6), 0 0 40px rgba(39,211,245,.18); outline:none; }
.svc-card:hover::before, .svc-card:focus-visible::before{ opacity:1; }
.svc-ic{ display:block; width:46px; height:46px; margin-bottom:18px; border-radius:13px;
  background:linear-gradient(135deg, rgba(127,246,234,.22), rgba(39,211,245,.1)); border:1px solid var(--glass-line-2);
  position:relative; }
.svc-ic::after{ content:""; position:absolute; inset:0; background:var(--cyan-hi); -webkit-mask:center/24px no-repeat var(--icon); mask:center/24px no-repeat var(--icon); }
.svc-ic[data-ic="di"]{ --icon:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='1.6'%3E%3Crect x='6' y='3' width='12' height='18' rx='3'/%3E%3Cpath d='M6 9h12M6 15h12'/%3E%3C/svg%3E"); }
.svc-ic[data-ic="filter"]{ --icon:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='1.6'%3E%3Cpath d='M3 5h18l-7 8v6l-4-2v-4z'/%3E%3C/svg%3E"); }
.svc-ic[data-ic="ro"]{ --icon:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='1.6'%3E%3Ccircle cx='12' cy='12' r='9'/%3E%3Cpath d='M3 12h18M12 3a14 14 0 0 1 0 18M12 3a14 14 0 0 0 0 18'/%3E%3C/svg%3E"); }
.svc-ic[data-ic="uv"]{ --icon:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='1.6'%3E%3Ccircle cx='12' cy='12' r='4'/%3E%3Cpath d='M12 2v3M12 19v3M2 12h3M19 12h3M5 5l2 2M17 17l2 2M19 5l-2 2M7 17l-2 2'/%3E%3C/svg%3E"); }
.svc-ic[data-ic="soft"]{ --icon:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='1.6'%3E%3Cpath d='M12 3s6 6 6 11a6 6 0 0 1-12 0c0-5 6-11 6-11z'/%3E%3C/svg%3E"); }
.svc-ic[data-ic="recycle"]{ --icon:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='1.6'%3E%3Cpath d='M7 7l-3 5 3 2M17 7l3 5-3 2M9 18h6'/%3E%3Cpath d='M4 12l4-7h8l4 7'/%3E%3C/svg%3E"); }
.svc-ic[data-ic="salt"]{ --icon:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='1.6'%3E%3Cpath d='M7 8h10l-1 12H8z'/%3E%3Cpath d='M9 8V5h6v3'/%3E%3C/svg%3E"); }
.svc-ic[data-ic="clean"]{ --icon:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='1.6'%3E%3Ccircle cx='12' cy='12' r='8'/%3E%3Cpath d='M9 12l2 2 4-4'/%3E%3C/svg%3E"); }
.svc-ic[data-ic="cooler"]{ --icon:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='1.6'%3E%3Crect x='7' y='9' width='10' height='12' rx='2'/%3E%3Cpath d='M9 9V6a3 3 0 0 1 6 0v3M11 13h2'/%3E%3C/svg%3E"); }
.svc-card h3{ font-family:var(--font-display); font-weight:600; font-size:1.28rem; margin-bottom:9px; letter-spacing:-.01em; }
.svc-card p{ color:var(--mist); font-size:.96rem; line-height:1.55; }
.svc-tag{ position:absolute; top:18px; right:18px; font-size:.6rem; letter-spacing:.14em; color:var(--abyss); background:var(--aqua); padding:4px 9px; border-radius:999px; }

/* =====================================================================
   PRODUCT SPOTLIGHT
   ===================================================================== */
.product{ padding:90px 0; }
.product-grid{
  max-width:var(--maxw); margin:0 auto; padding:0 var(--pad);
  display:grid; grid-template-columns:1fr 1fr; gap:56px; align-items:center;
}
.product-media{ display:flex; flex-direction:column; gap:18px; }

.media-slot{
  position:relative; border-radius:22px; min-height:340px; display:flex; flex-direction:column;
  align-items:center; justify-content:center; gap:14px; text-align:center;
  border:1.5px dashed var(--glass-line-2);
  background:repeating-linear-gradient(45deg, rgba(127,246,234,.03) 0 14px, rgba(127,246,234,.06) 14px 28px);
  color:var(--mist); overflow:hidden;
}
.media-slot .slot-icon{ width:54px; height:54px; border-radius:14px; border:1.5px solid var(--glass-line-2);
  background:radial-gradient(circle at 40% 35%, rgba(127,246,234,.3), transparent 70%); position:relative; }
.media-slot .slot-icon::after{ content:""; position:absolute; inset:0; -webkit-mask:center/26px no-repeat url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%237ff6ea' stroke-width='1.6'%3E%3Crect x='3' y='5' width='18' height='14' rx='2'/%3E%3Ccircle cx='9' cy='10' r='1.6'/%3E%3Cpath d='M21 16l-5-4-7 6'/%3E%3C/svg%3E"); mask:center/26px no-repeat url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%237ff6ea' stroke-width='1.6'%3E%3Crect x='3' y='5' width='18' height='14' rx='2'/%3E%3Ccircle cx='9' cy='10' r='1.6'/%3E%3Cpath d='M21 16l-5-4-7 6'/%3E%3C/svg%3E"); background:var(--cyan-hi); }
.slot-text{ font-family:var(--font-display); font-weight:600; font-size:1.05rem; line-height:1.5; }
.slot-text i{ font-family:var(--font-mono); font-weight:400; font-size:.74rem; color:var(--mist-dim); font-style:normal; letter-spacing:.02em; }

/* pH visualization */
.ph-viz{ border-radius:18px; padding:18px 20px; display:flex; flex-direction:column; gap:13px; }
.ph-head{ display:flex; align-items:center; justify-content:space-between; font-size:.72rem; letter-spacing:.16em; color:var(--mist); }
.ph-read b{ color:var(--cyan-hi); font-size:1.1rem; }
.ph-scale{ display:flex; justify-content:space-between; }
.ph-stop{ font-family:var(--font-mono); font-size:.78rem; color:var(--c); opacity:.5; transition:opacity .3s, transform .3s; }
.ph-stop.ph-active{ opacity:1; transform:scale(1.25); text-shadow:0 0 14px var(--c); }
.ph-track{ height:8px; border-radius:8px; background:linear-gradient(90deg,#ff5d5d,#ffd166 38%,#7ff6c2 58%,#33e8d6 78%,#27d3f5); position:relative; }
.ph-marker{ position:absolute; top:50%; left:0; width:18px; height:18px; border-radius:50%; background:#fff; border:3px solid var(--cyan); transform:translate(-50%,-50%); box-shadow:0 0 16px var(--cyan-hi); transition:left 1.1s var(--ease); }

.product-copy .section-title{ text-align:left; }
.benefits{ display:flex; flex-direction:column; gap:14px; margin:26px 0 32px; }
.benefits li{ display:flex; gap:13px; align-items:flex-start; color:var(--mist); font-size:1.02rem; }
.benefits li b{ color:var(--white); }
.b-ic{ flex:none; width:24px; height:24px; border-radius:50%; margin-top:1px;
  background:radial-gradient(circle at 40% 35%, var(--cyan-hi), var(--cyan)); position:relative; box-shadow:0 0 14px rgba(39,211,245,.5); }
.b-ic::after{ content:""; position:absolute; inset:0; -webkit-mask:center/14px no-repeat url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23042' stroke-width='3'%3E%3Cpath d='M5 12l4 4 10-10'/%3E%3C/svg%3E"); mask:center/14px no-repeat url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23042' stroke-width='3'%3E%3Cpath d='M5 12l4 4 10-10'/%3E%3C/svg%3E"); background:var(--abyss); }

/* =====================================================================
   PROCESS / FILTER VIZ
   ===================================================================== */
.process{ padding:90px 0; }
.process .section-head{ margin-bottom:40px; }
.filter-viz{ position:relative; max-width:1040px; margin:0 auto 44px; border-radius:22px; overflow:hidden; height:230px; }
#filter-canvas{ position:absolute; inset:0; width:100%; height:100%; }
.filter-stages{ position:absolute; inset:0; display:flex; align-items:flex-end; justify-content:space-between; padding:0 0 14px; pointer-events:none; }
.fstage{ flex:1; text-align:center; font-family:var(--font-mono); font-size:.62rem; letter-spacing:.1em; color:var(--mist-dim); position:relative; }
.fstage::before{ content:""; position:absolute; top:-12px; left:50%; transform:translateX(-50%); width:1px; height:8px; background:var(--glass-line-2); }
.fstage-out{ color:var(--cyan-hi); }

.steps{ max-width:var(--maxw); margin:0 auto; padding:0 var(--pad); display:grid; grid-template-columns:repeat(4,1fr); gap:18px; }
.step{ position:relative; padding:26px 22px; border-radius:18px; border:1px solid var(--glass-line); background:rgba(8,42,55,.3); }
.step-no{ font-size:.92rem; color:var(--cyan); display:block; margin-bottom:14px; }
.step h3{ font-family:var(--font-display); font-weight:600; font-size:1.16rem; margin-bottom:8px; }
.step p{ color:var(--mist); font-size:.94rem; line-height:1.55; }

/* =====================================================================
   STATS COUNT-UP
   ===================================================================== */
.stats{
  max-width:var(--maxw); margin:30px auto; padding:50px var(--pad);
  display:grid; grid-template-columns:repeat(4,1fr); gap:24px; text-align:center;
  border-top:1px solid var(--glass-line); border-bottom:1px solid var(--glass-line);
}
.stat-num{ display:block; font-family:var(--font-display); font-weight:800; font-size:clamp(2.8rem,5.5vw,4.6rem); line-height:1;
  color:var(--white); font-variant-numeric:tabular-nums; letter-spacing:-.03em;
  background:linear-gradient(180deg,var(--cyan-hi),var(--cyan)); -webkit-background-clip:text; background-clip:text; color:transparent; }
.stat-cap{ display:block; margin-top:12px; color:var(--mist); font-size:.92rem; }

/* =====================================================================
   WHY HPWE
   ===================================================================== */
.why{ padding:90px 0; }
.why .section-head{ margin-bottom:48px; }
.why-grid{ max-width:var(--maxw); margin:0 auto; padding:0 var(--pad); display:grid; grid-template-columns:repeat(2,1fr); gap:18px; }
.why-card{ border-radius:20px; padding:34px 32px; display:flex; flex-direction:column; gap:10px; }
.why-no{ font-size:1rem; color:var(--abyss); width:34px; height:34px; border-radius:50%; display:grid; place-items:center; background:linear-gradient(135deg,var(--cyan-hi),var(--cyan)); margin-bottom:6px; }
.why-card h3{ font-family:var(--font-display); font-weight:600; font-size:1.4rem; letter-spacing:-.01em; }
.why-card p{ color:var(--mist); font-size:1.01rem; line-height:1.6; }

/* =====================================================================
   TESTIMONIALS
   ===================================================================== */
.quotes{ padding:90px 0; }
.quotes .section-head{ margin-bottom:48px; }
.quote-grid{ max-width:var(--maxw); margin:0 auto; padding:0 var(--pad); display:grid; grid-template-columns:repeat(3,1fr); gap:18px; }
.quote-card{ border-radius:20px; padding:30px 28px; display:flex; flex-direction:column; gap:18px; }
.stars{ color:var(--aqua); letter-spacing:3px; font-size:1.05rem; text-shadow:0 0 12px rgba(51,232,214,.5); }
.quote-card blockquote{ font-family:var(--font-display); font-weight:500; font-size:1.18rem; line-height:1.45; letter-spacing:-.01em; }
.quote-card figcaption{ display:flex; flex-direction:column; gap:2px; margin-top:auto; }
.quote-card figcaption b{ font-size:1rem; }
.quote-card figcaption span{ color:var(--mist-dim); font-size:.86rem; font-family:var(--font-mono); }

/* =====================================================================
   MEDIA SHOWCASE
   ===================================================================== */
.showcase{ padding:90px 0; }
.showcase .section-head{ margin-bottom:48px; }
.showcase-grid{ max-width:var(--maxw); margin:0 auto; padding:0 var(--pad); display:grid; grid-template-columns:2fr 1fr 1fr; grid-template-rows:auto auto; gap:18px; }
.showcase-grid .media-video{ grid-row:span 2; min-height:380px; }
.showcase-grid .media-slot{ min-height:180px; }
.media-video .play{ width:70px; height:70px; border-radius:50%; border:2px solid var(--cyan-hi); display:grid; place-items:center; box-shadow:0 0 30px rgba(39,211,245,.4); }
.media-video .play::after{ content:""; width:0; height:0; border-left:18px solid var(--cyan-hi); border-top:11px solid transparent; border-bottom:11px solid transparent; margin-left:5px; }

/* =====================================================================
   CTA BAND
   ===================================================================== */
.cta-band{ padding:80px var(--pad); }
.cta-inner{
  max-width:var(--maxw); margin:0 auto; border-radius:28px; padding:clamp(40px,6vw,72px);
  text-align:center; position:relative; overflow:hidden;
  background:linear-gradient(135deg, rgba(10,79,96,.7), rgba(8,42,55,.5));
  border:1px solid var(--glass-line-2);
  box-shadow:0 30px 90px rgba(2,12,18,.6), inset 0 1px 0 rgba(127,246,234,.18);
  backdrop-filter:blur(18px);
}
.cta-inner::before{ content:""; position:absolute; inset:0; opacity:.6; mix-blend-mode:screen;
  background:radial-gradient(60% 80% at 50% 0%, rgba(39,211,245,.3), transparent 60%); }
.cta-title{ font-family:var(--font-display); font-weight:700; font-size:clamp(1.9rem,4.6vw,3.4rem); line-height:1.05; letter-spacing:-.02em; margin-bottom:30px; }
.cta-title span{ display:block; color:var(--cyan-hi); }
.cta-band .hero-cta{ justify-content:center; margin-bottom:0; }

/* =====================================================================
   CONTACT
   ===================================================================== */
.contact{ padding:90px 0; }
.contact-grid{ max-width:var(--maxw); margin:0 auto; padding:0 var(--pad); display:grid; grid-template-columns:1.25fr .85fr; gap:36px; align-items:start; }
.contact-form-wrap{ border-radius:24px; padding:clamp(28px,3.5vw,44px); }
.contact-form-wrap .section-title{ text-align:left; font-size:clamp(1.8rem,3vw,2.6rem); margin-bottom:26px; }
.contact-form{ display:grid; grid-template-columns:1fr 1fr; gap:18px; }
.field{ position:relative; }
.field-full{ grid-column:1/-1; }
.field input, .field select, .field textarea{
  width:100%; padding:18px 16px 8px; border-radius:13px; border:1px solid var(--glass-line);
  background:rgba(4,20,28,.5); color:var(--white); outline:none; transition:border-color .25s, box-shadow .25s;
  resize:vertical;
}
.field select{ padding-top:18px; padding-bottom:14px; appearance:none;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%239fc6cf' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E"); background-repeat:no-repeat; background-position:right 14px center; background-size:18px; }
.field label{ position:absolute; left:16px; top:15px; color:var(--mist-dim); font-size:1rem; pointer-events:none; transition:.2s var(--ease); }
.field input:focus, .field select:focus, .field textarea:focus{ border-color:var(--cyan); box-shadow:0 0 0 3px rgba(39,211,245,.18); }
.field input:focus + label, .field input:not(:placeholder-shown) + label,
.field textarea:focus + label, .field textarea:not(:placeholder-shown) + label,
.field select:focus + label, .field select:valid + label{
  top:6px; font-size:.66rem; letter-spacing:.08em; color:var(--aqua); font-family:var(--font-mono); text-transform:uppercase;
}
.field input.invalid, .field select.invalid, .field textarea.invalid{ border-color:#ff6b6b; box-shadow:0 0 0 3px rgba(255,107,107,.15); }
.contact-form .btn{ grid-column:1/-1; }
.form-note{ grid-column:1/-1; font-size:.9rem; color:var(--aqua); min-height:1.2em; }
.form-note.err{ color:#ff8b8b; }

.contact-info .section-title{ text-align:left; font-size:clamp(1.8rem,3vw,2.6rem); margin-bottom:24px; }
.info-row{ display:flex; flex-direction:column; gap:5px; padding:16px 0; border-bottom:1px solid var(--glass-line); }
.info-k{ font-size:.66rem; letter-spacing:.18em; color:var(--mist-dim); }
.info-v{ font-size:1.18rem; font-weight:500; }
a.info-row .info-v{ color:var(--cyan-hi); transition:color .2s; }
a.info-row:hover .info-v{ color:var(--white); }
.map-slot{ margin-top:22px; min-height:200px; border-radius:18px; border:1.5px dashed var(--glass-line-2); position:relative; display:grid; place-items:center;
  background:
    linear-gradient(rgba(127,246,234,.04),rgba(127,246,234,.04)),
    repeating-linear-gradient(0deg, transparent 0 38px, rgba(127,246,234,.06) 38px 39px),
    repeating-linear-gradient(90deg, transparent 0 38px, rgba(127,246,234,.06) 38px 39px);
  text-align:center; color:var(--mist-dim); }
.map-slot .slot-text{ font-size:.74rem; }
.map-pin{ position:absolute; top:46%; left:50%; transform:translate(-50%,-100%); width:18px; height:18px; border-radius:50% 50% 50% 0; background:var(--cyan); rotate:45deg; box-shadow:0 0 18px var(--cyan-hi); }
.map-pin::after{ content:""; position:absolute; inset:5px; background:var(--abyss); border-radius:50%; }

/* =====================================================================
   FOOTER
   ===================================================================== */
.footer{ position:relative; z-index:1; padding:60px var(--pad) 34px; border-top:1px solid var(--glass-line); background:rgba(3,16,23,.6); backdrop-filter:blur(10px); }
.footer-top{ max-width:var(--maxw); margin:0 auto; display:flex; align-items:center; justify-content:space-between; gap:24px; flex-wrap:wrap; padding-bottom:30px; border-bottom:1px solid var(--glass-line); }
.footer-links{ display:flex; gap:26px; flex-wrap:wrap; }
.footer-links a{ color:var(--mist); font-size:.95rem; transition:color .2s; }
.footer-links a:hover{ color:var(--cyan-hi); }
.footer-bottom{ max-width:var(--maxw); margin:24px auto 0; display:flex; align-items:center; justify-content:space-between; gap:14px; flex-wrap:wrap; color:var(--mist-dim); font-size:.84rem; }

/* =====================================================================
   HERO HUD — control-room telemetry ribbon
   ===================================================================== */
.hero-hud{ position:absolute; left:var(--pad); right:var(--pad); bottom:84px; max-width:var(--maxw); margin:0 auto; }
.hud-corner{ position:absolute; width:14px; height:14px; border:1px solid var(--glass-line-2); }
.hud-tl{ left:-6px; top:-14px; border-right:0; border-bottom:0; }
.hud-tr{ right:-6px; top:-14px; border-left:0; border-bottom:0; }
.hud-bar{
  display:flex; flex-wrap:wrap; align-items:center; gap:0;
  border:1px solid var(--glass-line); border-radius:12px;
  background:rgba(4,20,28,.42); backdrop-filter:blur(14px);
  box-shadow:inset 0 1px 0 rgba(127,246,234,.1);
  overflow:hidden;
}
.hud-stat{ display:flex; align-items:baseline; gap:7px; padding:11px 18px; border-right:1px solid var(--glass-line); flex:1; min-width:0; white-space:nowrap; }
.hud-stat:last-child{ border-right:0; }
.hud-stat i{ font-size:.58rem; letter-spacing:.14em; color:var(--mist-dim); font-style:normal; }
.hud-stat b{ font-size:.96rem; color:var(--white); font-variant-numeric:tabular-nums; font-weight:600; }
.hud-stat u{ font-size:.62rem; color:var(--mist); text-decoration:none; }
.hud-status b{ color:var(--aqua); }
.hud-dot{ width:7px; height:7px; border-radius:50%; background:var(--aqua); box-shadow:0 0 10px var(--aqua); animation:breathe 1.8s ease-in-out infinite; }
@media (max-width:900px){ .hero-hud{ display:none; } }

/* =====================================================================
   CREDS — standards + operations band
   ===================================================================== */
.creds{ max-width:var(--maxw); margin:0 auto; padding:20px var(--pad) 30px; }
.creds-ops{ display:grid; grid-template-columns:repeat(4,1fr); gap:1px; background:var(--glass-line); border:1px solid var(--glass-line); border-radius:16px; overflow:hidden; }
.op{ background:rgba(6,29,39,.5); padding:26px 22px; text-align:center; backdrop-filter:blur(10px); }
.op-num{ display:block; font-family:var(--font-display); font-weight:800; font-size:clamp(1.9rem,3.4vw,2.8rem); line-height:1; letter-spacing:-.02em; font-variant-numeric:tabular-nums;
  background:linear-gradient(180deg,var(--cyan-hi),var(--cyan)); -webkit-background-clip:text; background-clip:text; color:transparent; }
.op-cap{ display:block; margin-top:10px; color:var(--mist); font-size:.86rem; }
.ph-flag{ display:inline-block; font-style:normal; font-family:var(--font-mono); font-size:.56rem; letter-spacing:.08em; text-transform:uppercase; color:#ffd166; border:1px solid rgba(255,209,102,.35); border-radius:5px; padding:1px 5px; margin-left:5px; vertical-align:middle; opacity:.8; }
.creds-std{ text-align:center; margin-top:28px; }
.std-label{ display:block; font-size:.68rem; letter-spacing:.2em; color:var(--mist-dim); margin-bottom:16px; }
.std-row{ display:flex; flex-wrap:wrap; justify-content:center; gap:10px; }
.std-chip{ font-size:.78rem; color:var(--mist); padding:9px 15px; border-radius:999px; border:1px solid var(--glass-line-2); background:rgba(127,246,234,.04); }
.std-note{ margin-top:14px; font-size:.78rem; color:var(--mist-dim); }
@media (max-width:780px){ .creds-ops{ grid-template-columns:repeat(2,1fr); } }

/* =====================================================================
   SPEC TABLE — water grades
   ===================================================================== */
.grades{ padding:80px 0 90px; }
.grades .section-head{ margin-bottom:42px; }
.spec-wrap{ max-width:1100px; margin:0 auto; padding:0 var(--pad); }
.spec-table{ width:100%; border-collapse:collapse; border:1px solid var(--glass-line); border-radius:16px; overflow:hidden; background:rgba(6,29,39,.4); backdrop-filter:blur(16px); }
.spec-table thead th{
  text-align:left; font-family:var(--font-mono); font-size:.68rem; letter-spacing:.12em; text-transform:uppercase;
  color:var(--aqua); padding:16px 20px; background:rgba(10,58,72,.5); border-bottom:1px solid var(--glass-line-2);
}
.spec-table td{ padding:16px 20px; border-bottom:1px solid var(--glass-line); color:var(--mist); font-size:.96rem; vertical-align:middle; transition:color .25s; }
.spec-table tbody tr:last-child td{ border-bottom:0; }
.spec-table tbody tr{ cursor:default; transition:background .25s var(--ease), box-shadow .25s var(--ease); }
.spec-table tbody tr:hover{ background:rgba(39,211,245,.16); box-shadow:inset 4px 0 0 var(--aqua), 0 6px 24px rgba(2,12,18,.35); }
.spec-table tbody tr:hover td{ color:var(--white); }
.spec-table tbody tr:hover td.num{ color:var(--cyan-hi); text-shadow:0 0 14px rgba(127,246,234,.5); }
.spec-table tbody tr:hover .std-pill{ box-shadow:0 0 16px rgba(51,232,214,.55); }
.spec-table td b{ color:var(--white); font-weight:600; }
.spec-table td.num{ font-family:var(--font-mono); color:var(--cyan-hi); font-size:.9rem; white-space:nowrap; }
.row-hi{ background:rgba(39,211,245,.07); }
.row-hi td:first-child{ box-shadow:inset 3px 0 0 var(--cyan); }
.std-pill{ display:inline-block; font-family:var(--font-mono); font-size:.68rem; letter-spacing:.04em; color:var(--abyss); background:linear-gradient(135deg,var(--cyan-hi),var(--aqua)); padding:4px 10px; border-radius:6px; white-space:nowrap; }
.spec-foot{ margin-top:16px; font-size:.64rem; letter-spacing:.1em; color:var(--mist-dim); text-align:center; }
@media (max-width:720px){
  .spec-table, .spec-table thead, .spec-table tbody, .spec-table tr, .spec-table td{ display:block; width:100%; }
  .spec-table thead{ display:none; }
  .spec-table tr{ border-bottom:1px solid var(--glass-line-2); padding:8px 0; }
  .spec-table tbody tr:last-child{ border-bottom:0; }
  .spec-table td{ display:flex; justify-content:space-between; gap:16px; border:0; padding:8px 18px; }
  .spec-table td::before{ content:attr(data-l); font-family:var(--font-mono); font-size:.6rem; letter-spacing:.1em; text-transform:uppercase; color:var(--mist-dim); align-self:center; }
  .row-hi td:first-child{ box-shadow:none; }
}

/* =====================================================================
   SCHEMATIC — treatment train
   ===================================================================== */
.schematic{ max-width:var(--maxw); margin:0 auto 50px; padding:0 var(--pad); }
.sch-track{ display:flex; align-items:stretch; gap:0; }
.sch-node{
  flex:1; display:flex; flex-direction:column; gap:6px; padding:20px 14px; text-align:center; position:relative;
  border:1px solid var(--glass-line); border-radius:14px; background:rgba(6,29,39,.45); backdrop-filter:blur(10px);
}
.sch-node::after{ content:""; position:absolute; top:-1px; left:14px; right:14px; height:2px; border-radius:2px; background:linear-gradient(90deg,transparent,var(--cyan),transparent); opacity:.5; }
.sch-ix{ font-size:.62rem; color:var(--cyan); letter-spacing:.1em; }
.sch-name{ font-family:var(--font-display); font-weight:600; font-size:.98rem; color:var(--white); line-height:1.15; }
.sch-spec{ font-size:.64rem; color:var(--mist-dim); letter-spacing:.04em; }
.sch-link{ flex:0 0 26px; align-self:center; height:2px; position:relative; }
.sch-link::before{ content:""; position:absolute; inset:0; background:linear-gradient(90deg,var(--glass-line-2),var(--cyan));
  background-size:200% 100%; animation:flow 2.4s linear infinite; }
.sch-link::after{ content:"›"; position:absolute; right:-3px; top:50%; transform:translateY(-50%); color:var(--cyan); font-size:.9rem; }
@keyframes flow{ to{ background-position:-200% 0; } }
@media (max-width:880px){
  .sch-track{ flex-direction:column; }
  .sch-node{ flex-direction:row; align-items:center; justify-content:space-between; text-align:left; }
  .sch-node::after{ display:none; }
  .sch-link{ flex:0 0 18px; width:2px; height:18px; transform:rotate(90deg); }
}

/* =====================================================================
   FAQ
   ===================================================================== */
.faq{ padding:90px 0; }
.faq .section-head{ margin-bottom:44px; }
.faq-list{ max-width:860px; margin:0 auto; padding:0 var(--pad); display:flex; flex-direction:column; gap:12px; }
.faq-item{ border:1px solid var(--glass-line); border-radius:16px; background:rgba(6,29,39,.4); backdrop-filter:blur(12px); overflow:hidden; transition:border-color .3s, background .3s; }
.faq-item[open]{ border-color:var(--glass-line-2); background:rgba(10,58,72,.34); }
.faq-item summary{
  list-style:none; cursor:pointer; display:flex; align-items:center; justify-content:space-between; gap:20px;
  padding:22px 26px; font-family:var(--font-display); font-weight:600; font-size:clamp(1.05rem,1.7vw,1.28rem); color:var(--white);
}
.faq-item summary::-webkit-details-marker{ display:none; }
.faq-item summary:focus-visible{ outline:2px solid var(--cyan); outline-offset:-2px; border-radius:16px; }
.faq-item summary i{ flex:none; position:relative; width:22px; height:22px; }
.faq-item summary i::before, .faq-item summary i::after{ content:""; position:absolute; top:50%; left:50%; background:var(--cyan-hi); border-radius:2px; transform:translate(-50%,-50%); transition:transform .3s var(--ease); }
.faq-item summary i::before{ width:14px; height:2px; }
.faq-item summary i::after{ width:2px; height:14px; }
.faq-item[open] summary i::after{ transform:translate(-50%,-50%) scaleY(0); }
.faq-a{ padding:0 26px 24px; }
.faq-a p{ color:var(--mist); font-size:1.02rem; line-height:1.65; max-width:64ch; }

/* rising bubbles */
.bubble{ position:absolute; bottom:-30px; border-radius:50%; pointer-events:none; z-index:0;
  background:radial-gradient(circle at 35% 30%, rgba(234,252,255,.6), rgba(127,246,234,.15) 60%, transparent 72%);
  border:1px solid rgba(127,246,234,.2); animation:rise linear forwards; }
@keyframes rise{ to{ transform:translateY(-115vh) translateX(var(--drift,0)); opacity:0; } }

/* =====================================================================
   RESPONSIVE
   ===================================================================== */
@media (max-width:1024px){
  .svc-grid{ grid-template-columns:repeat(2,1fr); }
  .steps{ grid-template-columns:repeat(2,1fr); }
  .quote-grid{ grid-template-columns:1fr; max-width:560px; }
  .product-grid{ grid-template-columns:1fr; gap:40px; }
  .showcase-grid{ grid-template-columns:1fr 1fr; }
  .showcase-grid .media-video{ grid-column:1/-1; grid-row:auto; min-height:280px; }
}
@media (max-width:780px){
  .contact-grid{ grid-template-columns:1fr; }
  .why-grid{ grid-template-columns:1fr; }
  .stats{ grid-template-columns:repeat(2,1fr); gap:36px 24px; }
  .ba{ height:62vh; }
}
@media (max-width:560px){
  .svc-grid{ grid-template-columns:1fr; }
  .steps{ grid-template-columns:1fr; }
  .showcase-grid{ grid-template-columns:1fr; }
  .contact-form{ grid-template-columns:1fr; }
  .footer-top{ flex-direction:column; align-items:flex-start; }
}

/* =====================================================================
   REDUCED MOTION
   ===================================================================== */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{ animation-duration:.001ms !important; animation-iteration-count:1 !important; transition-duration:.001ms !important; scroll-behavior:auto !important; }
  .reveal{ opacity:1 !important; transform:none !important; }
  .fill-text{ transform:none !important; background-position:0 0 !important; }
  .godrays, .grain{ opacity:.25; }
}