/* ==========================================================================
   Deliverain — visuals.css
   Shared styles for site-wide graphics (Nov 2026 refresh).
   Palette is inherited from each page's :root (teal / amber / charcoal);
   --wt (navy, taken from the logo gradient) is the WaveTrace accent.
   ========================================================================== */
:root{
  --wt:#134C68;
  --wt-lt:#E6F0F5;
  --vz-red:#c0392b;
  --vz-ink:#1A1A1A;
}

/* ---------- motion ---------- */
@keyframes vzFlow{to{stroke-dashoffset:-24}}
@keyframes vzScan{0%{transform:translateX(0)}100%{transform:translateX(var(--vz-scan,520px))}}
@keyframes vzBlink{0%,100%{opacity:1}50%{opacity:.35}}
.vz-flow{stroke-dasharray:6 6;animation:vzFlow 1.1s linear infinite}
@media (prefers-reduced-motion:reduce){
  .vz-flow,.wt-scan,.vz-blink{animation:none!important}
}

/* ---------- icons ---------- */
.vz-ic{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}

/* ==========================================================================
   1. STACK DIAGRAM  (homepage: "From relay to control room")
   ========================================================================== */
.stack-section{background:var(--smoke);padding:96px 48px;border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.stack-inner{max-width:1200px;margin:0 auto}
.stack-board{margin-top:48px;display:grid;grid-template-columns:minmax(0,1fr) 44px minmax(0,.62fr) 44px minmax(0,2.35fr);align-items:stretch;gap:0}
.stk-col{display:flex;flex-direction:column;min-width:0}
.stk-head{font-family:var(--font-mono);font-size:10.5px;font-weight:700;letter-spacing:1.4px;text-transform:uppercase;color:var(--mid);margin-bottom:12px;display:flex;align-items:center;gap:8px}
.stk-head i{display:inline-block;width:18px;height:2px;background:var(--border)}
.stk-stack{flex:1;display:grid;grid-template-rows:repeat(4,1fr);gap:10px}
.stk-chip{background:#fff;border:1px solid var(--border);border-radius:12px;padding:12px 14px;display:flex;align-items:center;gap:12px;min-height:68px;transition:border-color .2s,box-shadow .2s,transform .2s}
.stk-chip .ico{width:38px;height:38px;border-radius:10px;display:flex;align-items:center;justify-content:center;background:var(--mist);color:var(--teal-dk);flex-shrink:0}
.stk-chip .t{font-family:var(--font-head);font-size:13.5px;font-weight:700;color:var(--ink);line-height:1.2}
.stk-chip .s{font-size:11.5px;color:#5C7686;line-height:1.35;margin-top:2px}
a.stk-chip{text-decoration:none;color:inherit}
a.stk-chip:hover{border-color:var(--teal);box-shadow:0 8px 24px rgba(27,158,191,.12);transform:translateY(-2px)}

/* arrow gutters */
.stk-gutter{display:flex;align-items:center;justify-content:center;padding-top:26px}
.stk-gutter svg{width:36px;height:24px;overflow:visible}

/* protocol bus */
.stk-bus{flex:1;border-radius:14px;background:linear-gradient(180deg,#0F7A96,#134C68);padding:14px 10px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;position:relative;overflow:hidden;box-shadow:0 14px 36px rgba(19,76,104,.22)}
.stk-bus::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);background-size:18px 18px}
.stk-bus .bus-t{position:relative;font-family:var(--font-mono);font-size:9.5px;letter-spacing:1.2px;color:rgba(255,255,255,.7);text-transform:uppercase;margin-bottom:2px}
.stk-bus .ptag{position:relative;width:100%;text-align:center;font-family:var(--font-mono);font-size:10.5px;font-weight:600;color:#fff;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);border-radius:6px;padding:6px 4px;white-space:nowrap}
.stk-bus .ptag.more{background:var(--amber);border-color:var(--amber);color:#2b1a00}

/* product → outcome rows */
.stk-rows{flex:1;display:grid;grid-template-rows:repeat(4,1fr);gap:10px}
.stk-row{display:grid;grid-template-columns:minmax(0,1.25fr) 40px minmax(0,1fr);align-items:stretch}
.stk-row .arrow{display:flex;align-items:center;justify-content:center}
.stk-row .arrow svg{width:30px;height:16px;overflow:visible}
.stk-prod{border-left-width:4px;border-left-style:solid}
.stk-prod .ico{color:#fff}
.stk-prod .tag{display:inline-block;margin-top:5px;font-family:var(--font-mono);font-size:9.5px;font-weight:700;letter-spacing:.6px;padding:2px 8px;border-radius:20px;text-transform:uppercase}
.stk-out{background:transparent;border-style:dashed}
.stk-out .ico{background:transparent;border:1px dashed var(--border)}

/* product colour modifiers */
.c-sf{border-left-color:var(--teal-dk)} .c-sf .ico{background:var(--teal-dk)} .c-sf .tag{background:rgba(15,122,150,.1);color:var(--teal-dk)}
.c-pl{border-left-color:var(--teal)}    .c-pl .ico{background:var(--teal)}    .c-pl .tag{background:rgba(27,158,191,.1);color:var(--teal-dk)}
.c-wt{border-left-color:var(--wt)}      .c-wt .ico{background:var(--wt)}      .c-wt .tag{background:var(--wt-lt);color:var(--wt)}
.c-sl{border-left-color:var(--vz-red)}  .c-sl .ico{background:var(--vz-red)}  .c-sl .tag{background:rgba(192,57,43,.08);color:var(--vz-red)}

/* bottom strips (SubstationSynk + Scaffold) */
.stk-strips{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:22px}
.stk-strip{display:flex;align-items:center;gap:16px;border-radius:14px;padding:16px 20px;text-decoration:none;color:inherit;transition:transform .2s,box-shadow .2s}
.stk-strip:hover{transform:translateY(-2px);box-shadow:0 10px 28px rgba(0,0,0,.07)}
.stk-strip .ico{width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.stk-strip .t{font-family:var(--font-head);font-size:14px;font-weight:700;color:var(--ink)}
.stk-strip .s{font-size:12.5px;color:#4A6070;line-height:1.5;margin-top:2px}
.stk-strip.sim{background:rgba(245,166,35,.07);border:1.5px dashed rgba(196,130,26,.55)}
.stk-strip.sim .ico{background:var(--amber);color:#2b1a00}
.stk-strip.apps{background:#fff;border:1px solid var(--border)}
.stk-strip.apps .ico{background:var(--mist);color:var(--teal-dk)}

@media (max-width:1020px){
  .stack-section{padding:72px 24px}
  .stack-board{grid-template-columns:1fr;gap:0}
  .stk-gutter{padding:10px 0;transform:rotate(90deg);height:44px}
  .stk-stack{grid-template-rows:none;grid-template-columns:1fr 1fr}
  .stk-bus{flex-direction:row;flex-wrap:wrap;padding:14px}
  .stk-bus .bus-t{width:100%;text-align:center}
  .stk-bus .ptag{width:auto;flex:1 1 90px}
  .stk-rows{grid-template-rows:none}
  .stk-strips{grid-template-columns:1fr}
}
@media (max-width:600px){
  .stk-stack{grid-template-columns:1fr}
  .stk-row{grid-template-columns:1fr;gap:6px}
  .stk-row .arrow{height:22px;transform:rotate(90deg)}
}

/* ==========================================================================
   2. WAVETRACE  (waveform card, workflow strip, mini card visual)
   ========================================================================== */
.wt-card .pvc-title{letter-spacing:.2px}
.wt-chart{position:relative;background:#fff;border:1px solid var(--border);border-radius:10px;overflow:hidden}
.wt-chart svg{display:block;width:100%;height:auto}
.wt-scan{animation:vzScan 7s linear infinite;--vz-scan:410px}
.wt-legend{display:flex;flex-wrap:wrap;gap:6px 14px;margin:12px 2px 0;font-family:var(--font-mono);font-size:10px;color:#5C7686}
.wt-legend b{display:inline-block;width:14px;height:3px;border-radius:2px;margin-right:6px;vertical-align:middle}
.wt-events{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:14px}
.wt-events>div{background:var(--smoke);border:1px solid var(--border);border-radius:8px;padding:10px;text-align:center}
.wt-events .v{font-family:var(--font-mono);font-size:15px;font-weight:500;color:var(--wt)}
.wt-events .l{font-size:9.5px;color:var(--mid);text-transform:uppercase;letter-spacing:.5px;margin-top:2px}

/* workflow strip */
.wt-flow{max-width:1200px;margin:56px auto 0;display:grid;grid-template-columns:repeat(4,1fr);gap:0;position:relative}
.wt-step{position:relative;padding:0 18px 0 0}
.wt-step .node{width:52px;height:52px;border-radius:14px;background:var(--wt);color:#fff;display:flex;align-items:center;justify-content:center;box-shadow:0 8px 22px rgba(19,76,104,.25);position:relative;z-index:1}
.wt-step .node .vz-ic{width:26px;height:26px}
.wt-step:not(:last-child)::after{content:"";position:absolute;top:26px;left:64px;right:12px;border-top:2px dashed rgba(19,76,104,.35)}
.wt-step .n{font-family:var(--font-mono);font-size:10px;font-weight:700;letter-spacing:1.2px;color:var(--mid);margin:16px 0 4px}
.wt-step .h{font-family:var(--font-head);font-size:15px;font-weight:700;color:var(--ink);line-height:1.25;margin-bottom:6px}
.wt-step .d{font-size:12.5px;color:#4A6070;line-height:1.6}
@media (max-width:900px){
  .wt-flow{grid-template-columns:1fr 1fr;gap:28px 16px}
  .wt-step:not(:last-child)::after{display:none}
}
@media (max-width:560px){.wt-flow{grid-template-columns:1fr}}

/* mini visual inside the homepage product card */
.wt-mini{background:linear-gradient(135deg,rgba(19,76,104,.06),rgba(168,212,230,.12));border:1px solid rgba(19,76,104,.16);border-radius:10px;margin-bottom:20px;overflow:hidden;position:relative}
.wt-mini svg{display:block;width:100%;height:auto}
.wt-mini .cap{position:absolute;left:12px;top:8px;font-family:var(--font-mono);font-size:8px;font-weight:700;letter-spacing:1px;text-transform:uppercase;color:var(--mid)}

/* ==========================================================================
   3. PLATFORM LAYERS — three cards in a row (roadmap removed Nov 2026)
   ========================================================================== */
.platform-grid.pl-solo{grid-template-columns:1fr;gap:0}
.platform-grid.pl-solo .platform-layers{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;align-items:stretch}
.platform-grid.pl-solo .layer{height:100%}
@media (max-width:1000px){.platform-grid.pl-solo .platform-layers{grid-template-columns:1fr}}

/* ==========================================================================
   4. HOME PRODUCT GRID (3 x 2) — fixes inline 4-col override on mobile
   ========================================================================== */
.products-grid.pg-6{grid-template-columns:repeat(3,1fr)}
@media (max-width:1000px){.products-grid.pg-6{grid-template-columns:1fr 1fr}}
@media (max-width:640px){.products-grid.pg-6{grid-template-columns:1fr}}
.pc-new{position:absolute;top:20px;right:20px;background:var(--wt);color:#fff;font-size:9px;font-weight:700;padding:3px 9px;border-radius:20px;letter-spacing:.8px}

/* ==========================================================================
   5. PRODUCTS PAGE — mobile layout for product sections
   (products.html had no breakpoint for .ps-inner, so sections overflowed on phones)
   ========================================================================== */
@media (max-width:900px){
  .product-section{padding:56px 24px}
  .ps-inner,.ps-inner.rev{grid-template-columns:minmax(0,1fr);gap:40px;direction:ltr}
  .ps-inner>*{min-width:0}
  .ps-visual{position:relative}
}

/* ==========================================================================
   6. HERO — operator-screen alarm strip (Beacon preview)
   ========================================================================== */
.vc-alarms{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;padding:12px 18px;background:rgba(8,20,32,.7);border-bottom:1px solid rgba(94,234,255,.12)}
.al-chips{display:flex;gap:6px;flex-wrap:wrap}
.al{font-family:var(--font-mono);font-size:10px;font-weight:600;padding:3px 10px;border-radius:20px;border:1px solid;white-space:nowrap}
.al-crit{color:#ff7a6e;border-color:rgba(255,122,110,.45);background:rgba(255,122,110,.08)}
.al-major{color:#2b1a00;background:var(--amber);border-color:var(--amber)}
.al-minor{color:#8fb4ff;border-color:rgba(143,180,255,.45);background:rgba(143,180,255,.08)}
.al-adv{color:#9FC3D6;border-color:rgba(159,195,214,.35)}
.al-msg{display:flex;flex-direction:column;gap:1px;min-width:0}
.al-msg b{font-size:12px;font-weight:600;color:#fff;line-height:1.3}
.al-msg span{font-family:var(--font-mono);font-size:9.5px;color:#9FC3D6;letter-spacing:.3px}

/* ==========================================================================
   7. HOMEPAGE — trust strip + problem lines
   ========================================================================== */
.trust-strip{background:#fff;border-bottom:1px solid var(--border)}
.trust-inner{max-width:1200px;margin:0 auto;padding:22px 48px;display:grid;grid-template-columns:repeat(5,1fr);gap:20px}
.trust-item{display:flex;gap:12px;align-items:flex-start}
.ti-ic{width:34px;height:34px;border-radius:9px;background:rgba(27,158,191,.09);display:flex;align-items:center;justify-content:center;flex:0 0 auto;color:var(--teal-dk)}
.ti-ic svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.ti-t{font-family:var(--font-head);font-weight:700;font-size:13px;color:#0B1A24;line-height:1.3}
.ti-s{font-size:12px;color:var(--mid);line-height:1.45;margin-top:2px}
.prob-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:28px 0 36px}
.prob{background:#fff;border:1px solid var(--border);border-radius:12px;padding:18px 20px}
.prob .p-a{font-size:13px;color:var(--mid);line-height:1.5}
.prob .p-arrow{color:var(--teal);font-weight:700;font-size:12px;margin:8px 0 4px;font-family:var(--font-mono)}
.prob .p-b{font-size:14px;font-weight:600;color:#0B1A24;line-height:1.45}
.pc-benefit{display:block;color:#0B1A24;font-weight:600;margin-bottom:6px}
.cta-contact{margin-top:18px;font-family:var(--font-mono);font-size:12.5px;color:rgba(255,255,255,.8)}
.cta-contact a{color:#fff}
@media(max-width:1000px){.trust-inner{grid-template-columns:repeat(2,1fr);padding:20px 24px}}
@media(max-width:900px){.prob-grid{grid-template-columns:1fr}}
@media(max-width:560px){.trust-inner{grid-template-columns:1fr}}

/* problem cards — high-contrast so they stand out from the blue page */
.prob-grid{gap:20px;margin:36px 0 44px}
.prob{background:#0B1A24;border:0;border-top:4px solid var(--amber);border-radius:12px;padding:24px 26px 26px;box-shadow:0 14px 34px rgba(11,26,36,.22);position:relative}
.prob .p-tag{font-family:var(--font-mono);font-size:10.5px;font-weight:700;letter-spacing:1.6px;color:var(--amber);margin-bottom:10px}
.prob .p-a{font-family:var(--font-head);font-size:19px;font-weight:700;color:#fff;line-height:1.3}
.prob .p-arrow{color:var(--amber);font-size:11px;letter-spacing:1.4px;margin:18px 0 8px;padding-top:16px;border-top:1px dashed rgba(255,255,255,.2)}
.prob .p-b{font-size:15.5px;font-weight:600;color:#cfeff8;line-height:1.45}

/* ==========================================================================
   8. HOMEPAGE — dot-matrix India map + operator ledger
   ========================================================================== */
.dm-wrap{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);gap:56px;align-items:center;margin-top:36px}
.dm-map{position:relative}
.dm-svg{width:100%;height:auto;display:block;max-width:560px;margin:0 auto}
.dm-dim{fill:none;stroke:rgba(159,195,214,.22);stroke-width:3.2;stroke-linecap:round}
.dm-lit{fill:none;stroke:#5EEAFF;stroke-width:4.4;stroke-linecap:round;filter:drop-shadow(0 0 3px rgba(94,234,255,.55))}
.dm-ping{fill:none;stroke:#F5A623;stroke-width:1.4;transform-box:fill-box;transform-origin:center;animation:dmPing 6.6s ease-out infinite;opacity:0}
@keyframes dmPing{0%{transform:scale(.6);opacity:.9}18%{transform:scale(3.2);opacity:0}100%{transform:scale(3.2);opacity:0}}
.dm-legend{display:flex;gap:22px;justify-content:center;flex-wrap:wrap;margin-top:14px;font-family:var(--font-mono);font-size:11.5px;color:#9FC3D6}
.dm-k{display:inline-block;width:9px;height:9px;border-radius:50%;background:rgba(159,195,214,.35);margin-right:8px;vertical-align:-1px}
.dm-k.lit{background:#5EEAFF;box-shadow:0 0 6px rgba(94,234,255,.7)}
.dm-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border:1px solid rgba(255,255,255,.1);border-radius:12px;overflow:hidden;background:rgba(255,255,255,.03)}
.dm-stat{padding:18px 14px;text-align:center;border-right:1px solid rgba(255,255,255,.08)}
.dm-stat:last-child{border-right:0}
.dm-sv{font-family:var(--font-head);font-weight:800;font-size:32px;color:#F5A623;line-height:1}
.dm-sl{font-family:var(--font-mono);font-size:11px;letter-spacing:.8px;text-transform:uppercase;color:#9FC3D6;margin-top:8px}
.dm-intl{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin:18px 0 6px}
.dm-intl-l{font-family:var(--font-mono);font-size:11px;letter-spacing:1px;text-transform:uppercase;color:#9FC3D6;margin-right:4px}
.dm-ledger-h{font-family:var(--font-head);font-weight:700;font-size:18px;color:#fff;margin:26px 0 4px}
.dm-grp{padding:16px 0;border-bottom:1px solid rgba(255,255,255,.08)}
.dm-grp:last-child{border-bottom:0}
.dm-gl{font-family:var(--font-mono);font-size:11px;font-weight:700;letter-spacing:1.4px;text-transform:uppercase;color:#F5A623;margin-bottom:10px}
.dm-chips{display:flex;flex-wrap:wrap;gap:8px}
.dm-chip{font-family:var(--font-body,inherit);font-size:14px;font-weight:600;color:#fff;padding:7px 14px;border:1px solid rgba(94,234,255,.35);border-radius:8px;background:rgba(94,234,255,.07);white-space:nowrap}
@media(max-width:900px){.dm-wrap{grid-template-columns:1fr;gap:32px}.dm-stats{grid-template-columns:repeat(2,1fr)}.dm-stat:nth-child(2){border-right:0}.dm-stat:nth-child(-n+2){border-bottom:1px solid rgba(255,255,255,.08)}}
@media(prefers-reduced-motion:reduce){.dm-ping{animation:none;opacity:0}}

/* 5-product grid: three on the first row, two wider cards on the second */
.products-grid.pg-5{grid-template-columns:repeat(6,1fr)}
.products-grid.pg-5>.product-card:nth-child(-n+3){grid-column:span 2}
.products-grid.pg-5>.product-card:nth-child(n+4){grid-column:span 3}
@media (max-width:1000px){.products-grid.pg-5{grid-template-columns:1fr 1fr}.products-grid.pg-5>.product-card:nth-child(n){grid-column:span 1}.products-grid.pg-5>.product-card:last-child{grid-column:1/-1}}
@media (max-width:640px){.products-grid.pg-5{grid-template-columns:1fr}.products-grid.pg-5>.product-card:last-child{grid-column:auto}}

/* ==========================================================================
   9. PRODUCTS — WaveTrace fault-location card (sample data)
   ========================================================================== */
.wt-loc-wrap{max-width:1200px;margin:64px auto 0;padding:0 0}
.wt-loc-intro{max-width:640px;margin-bottom:22px}
.wt-loc-k{font-family:var(--font-mono);font-size:11px;font-weight:700;letter-spacing:1.6px;text-transform:uppercase;color:var(--wt);margin-bottom:8px}
.wt-loc-intro p{font-size:16px;line-height:1.7;color:#4A6070;margin:0}
.wt-loc{position:relative;background:#fff;border:1px solid var(--border);border-radius:16px;padding:26px 30px 22px;box-shadow:0 18px 44px rgba(19,76,104,.10);overflow:hidden}
.wt-loc::before{content:'';position:absolute;left:0;right:0;top:0;height:4px;background:linear-gradient(90deg,#1B9EBF,#F5A623)}
.wt-loc-top{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:18px}
.wt-loc-top h3{font-family:var(--font-head);font-weight:800;font-size:20px;letter-spacing:-.3px;color:#0B1A24;margin:0}
.wt-chip{font-family:var(--font-mono);font-size:10.5px;font-weight:700;letter-spacing:.6px;color:var(--amber-dk);border:1px solid rgba(196,130,26,.45);background:rgba(245,166,35,.08);border-radius:20px;padding:3px 11px;white-space:nowrap}
.wt-loc-head{display:grid;grid-template-columns:1fr 1fr 1.2fr;gap:24px;align-items:start;margin-bottom:10px}
.wt-big{font-family:var(--font-head);font-weight:800;font-size:44px;line-height:1;color:var(--wt);letter-spacing:-1px}
.wt-big.red{color:#c0392b}
.wt-big small{font-size:16px;font-weight:600;margin-left:6px;color:#4A6070;letter-spacing:0}
.wt-cap{font-size:13.5px;color:#4A6070;margin-top:8px;line-height:1.5}
.wt-cap b{color:#0B1A24;font-weight:600}
.wt-loc-ft{text-align:right}
.wt-ftype{font-family:var(--font-head);font-weight:800;font-size:16px;letter-spacing:.3px;color:var(--wt)}
.wt-loc-scroll{overflow-x:auto}
.wt-loc-svg{display:block;width:100%;height:auto;min-width:640px}
.wt-rip{transform-box:fill-box;transform-origin:center;animation:wtRip 3s ease-out infinite}
.wt-rip.r2{animation-delay:1.5s}
@keyframes wtRip{0%{transform:scale(.35);opacity:.45}100%{transform:scale(1.5);opacity:0}}
@media(max-width:760px){.wt-loc-head{grid-template-columns:1fr 1fr}.wt-loc-ft{grid-column:1/-1;text-align:left}.wt-loc{padding:22px 18px 18px}.wt-big{font-size:36px}}
@media(prefers-reduced-motion:reduce){.wt-rip{animation:none;opacity:.15}}
@media(max-width:560px){.wt-loc-head{grid-template-columns:1fr;gap:16px}.wt-loc-head>div{min-width:0}.wt-loc-top{flex-wrap:wrap}.wt-loc-top h3{font-size:17px}.wt-big{font-size:32px}.wt-ftype{font-size:14px}}