/* ============================================================
   SAKLIS — stylesheet
   Palette: charcoal #23282E · copper #C4691F · steel-white paper
   Type:    IBM Plex Sans (text) · IBM Plex Mono (labels/specs)
   ============================================================ */

:root {
  --paper:       #F3F4F1;
  --panel:       #FBFBFA;
  --ink:         #23282E;
  --steel:       #5A626C;
  --line:        #D8DAD5;
  --copper:      #C4691F;
  --copper-deep: #9E5316;
  --ok:          #2F6B3A;
  --err:         #9B3324;

  --font-sans: "IBM Plex Sans", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;

  --maxw: 1080px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}

img, svg { display: block; max-width: 100%; }

a { color: var(--copper-deep); text-decoration: none; }
a:hover { text-decoration: underline; }

:focus-visible {
  outline: 2px solid var(--copper);
  outline-offset: 2px;
}

.container {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 1.25rem;
}

.visually-hidden {
  position: absolute; width: 1px; height: 1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap;
}

/* ---------- typography ---------- */

h1, h2, h3 {
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.015em;
  margin: 0 0 0.75em;
}
h1 { font-size: clamp(2rem, 4.5vw, 3.1rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); }
h3 { font-size: 1.125rem; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--steel);
  display: flex;
  align-items: center;
  gap: 0.55rem;
  margin: 0 0 1.1rem;
}

/* terminal-block square before each section label */
.tap {
  width: 9px; height: 9px;
  background: var(--copper);
  flex: none;
}

.lead {
  font-size: 1.15rem;
  color: var(--steel);
  max-width: 34em;
}

/* ---------- header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--paper) 92%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  height: 64px;
}

.brand-logo { height: 30px; width: auto; }

.site-nav {
  display: flex;
  align-items: center;
  gap: 1.6rem;
}
.site-nav a {
  color: var(--ink);
  font-weight: 500;
  font-size: 0.95rem;
}
.site-nav a:hover { color: var(--copper-deep); text-decoration: none; }

.nav-phone {
  font-family: var(--font-mono);
  font-size: 0.85rem !important;
  border: 1px solid var(--ink);
  padding: 0.4rem 0.8rem;
}
.nav-phone:hover { background: var(--ink); color: var(--paper) !important; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: 0;
  padding: 0.5rem;
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  width: 22px; height: 2px;
  background: var(--ink);
  transition: transform 0.2s, opacity 0.2s;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- hero ---------- */

.hero { padding: 4.5rem 0 4rem; }

.hero-grid {
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  gap: 3rem;
  align-items: center;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 1.75rem 0 2.25rem;
}

.btn {
  display: inline-block;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.75rem 1.4rem;
  border: 1px solid var(--ink);
  transition: background 0.15s, color 0.15s;
}
.btn:hover { text-decoration: none; }
.btn--solid { background: var(--ink); color: var(--paper); }
.btn--solid:hover { background: var(--copper-deep); border-color: var(--copper-deep); color: #fff; }
.btn--ghost { color: var(--ink); background: transparent; }
.btn--ghost:hover { background: var(--ink); color: var(--paper); }
.btn--wide { width: 100%; text-align: center; cursor: pointer; font-family: var(--font-sans); font-size: 1rem; }

.hero-facts {
  display: flex;
  gap: 2.2rem;
  margin: 0;
  padding-top: 1.4rem;
  border-top: 1px solid var(--line);
}
.hero-facts dt {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--steel);
}
.hero-facts dd {
  margin: 0.15rem 0 0;
  font-weight: 600;
  font-size: 0.98rem;
}

/* ---------- hero schematic (signature) ---------- */

.hero-schematic { margin: 0; }
.hero-schematic svg { width: 100%; height: auto; }

.sch-enclosure {
  fill: var(--panel);
  stroke: var(--ink);
  stroke-width: 1.6;
  stroke-dasharray: 9 7;
}
.sch-line {
  stroke: var(--ink);
  stroke-width: 2.6;
  stroke-linecap: round;
}
.sch-line--thin { stroke-width: 1; stroke-dasharray: none; opacity: 0.35; }
.sch-busbar {
  stroke: var(--copper);
  stroke-width: 5;
  stroke-linecap: round;
}
.sch-node { fill: var(--ink); }
.sch-node--live { fill: var(--copper); }
.sch-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  fill: var(--steel);
}
.sch-label--copper { fill: var(--copper-deep); }

@keyframes live-pulse {
  0%, 100% { opacity: 1; }
  50%      { opacity: 0.25; }
}
.sch-node--live { animation: live-pulse 2.4s ease-in-out infinite; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .sch-node--live { animation: none; }
  * { transition: none !important; }
}

/* ---------- sections ---------- */

.section { padding: 4.5rem 0; }
.section--panel {
  background: var(--panel);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.split {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 2.5rem;
  align-items: start;
}
.split-body p { margin: 0 0 1em; color: var(--steel); }
.split-body p:last-child { margin-bottom: 0; }

/* ---------- cards ---------- */

.cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
  margin-top: 2rem;
}

.card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-top: 3px solid var(--ink);
  padding: 1.5rem 1.5rem 1.25rem;
}
.card h3 { margin-bottom: 0.5rem; }
.card p { margin: 0 0 0.9rem; color: var(--steel); font-size: 0.98rem; }
.card-spec {
  font-family: var(--font-mono);
  font-size: 0.78rem !important;
  letter-spacing: 0.04em;
  color: var(--copper-deep) !important;
  margin-bottom: 0 !important;
  padding-top: 0.75rem;
  border-top: 1px dashed var(--line);
}

/* ---------- process ---------- */

.process { margin-top: 3.5rem; }
.process-title {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--steel);
  margin-bottom: 1.5rem;
}
.process-line {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
  counter-reset: step;
}
.process-line li {
  counter-increment: step;
  position: relative;
  padding-top: 1.1rem;
  font-size: 0.92rem;
  color: var(--steel);
}
.process-line li::before {
  /* wire + terminal dot: order genuinely matters here */
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--line);
}
.process-line li::after {
  content: "";
  position: absolute;
  top: -3px; left: 0;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--copper);
}
.process-line strong {
  display: block;
  color: var(--ink);
  font-size: 1rem;
  margin-bottom: 0.2rem;
}

/* ---------- contact ---------- */

.contact-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 2.5rem;
  margin-top: 2rem;
  align-items: start;
}

.contact-form {
  background: var(--panel);
  border: 1px solid var(--line);
  padding: 1.75rem;
}

.field { margin-bottom: 1.1rem; }
.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
.field label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--steel);
  margin-bottom: 0.35rem;
}
.field .opt { text-transform: none; letter-spacing: 0; }

.field input,
.field textarea {
  width: 100%;
  font-family: var(--font-sans);
  font-size: 1rem;
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 0;
  padding: 0.65rem 0.75rem;
}
.field input:focus,
.field textarea:focus {
  outline: 2px solid var(--copper);
  outline-offset: -1px;
  border-color: var(--copper);
}
.field textarea { resize: vertical; }

.field input.invalid,
.field textarea.invalid { border-color: var(--err); }

/* honeypot — off-screen, not display:none (some bots check) */
.hp {
  position: absolute;
  left: -9999px;
  width: 1px; height: 1px;
  overflow: hidden;
}

.form-note {
  font-size: 0.88rem;
  color: var(--steel);
  margin: 0.9rem 0 0;
}

.contact-aside { display: grid; gap: 1.25rem; }

.contact-block {
  border: 1px solid var(--line);
  background: var(--panel);
  padding: 1.5rem;
}
.contact-block h3 { margin-bottom: 0.9rem; }
.contact-line {
  display: flex;
  gap: 0.9rem;
  margin: 0 0 0.5rem;
  font-size: 0.98rem;
}
.contact-line span {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--steel);
  width: 3.2rem;
  flex: none;
  padding-top: 0.2rem;
}

/* map placeholder — swap for the Google Maps iframe */
.map-placeholder {
  min-height: 260px;
  border: 1.6px dashed var(--ink);
  color: var(--steel);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  text-align: center;
  padding: 1rem;
}
.map-placeholder p {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.06em;
}
.map-embed { width: 100%; height: 300px; border: 0; }

/* ---------- notices ---------- */

.notice {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 0.8rem 1rem;
  margin-bottom: 1.5rem;
  font-size: 0.95rem;
  border: 1px solid;
}
.notice--ok    { color: var(--ok);  border-color: var(--ok);  background: #eef4ee; }
.notice--error { color: var(--err); border-color: var(--err); background: #f8eeec; }
.notice-close {
  background: none; border: 0; cursor: pointer;
  font-size: 1.2rem; line-height: 1; color: inherit; padding: 0.2rem;
}

/* ---------- footer ---------- */

.site-footer {
  background: var(--ink);
  color: #C7CCD2;
  padding: 3rem 0 2.5rem;
}
.footer-inner { display: grid; gap: 0.4rem; }
.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 0.6rem;
}
.footer-bolt { height: 26px; width: auto; }
.footer-name {
  font-weight: 700;
  letter-spacing: 0.22em;
  color: #fff;
}
.footer-meta { margin: 0; font-size: 0.92rem; }
.footer-meta a { color: #E4E7EA; }
.footer-copy {
  margin: 1.4rem 0 0;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: #8E959D;
}

/* ---------- responsive ---------- */

@media (max-width: 860px) {
  .hero-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .hero-schematic { max-width: 380px; }
  .split { grid-template-columns: 1fr; gap: 1rem; }
  .cards { grid-template-columns: 1fr; }
  .process-line { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .nav-toggle { display: flex; }
  .site-nav {
    display: none;
    position: absolute;
    top: 64px; left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
    padding: 0.5rem 1.25rem 1rem;
  }
  .site-nav.open { display: flex; }
  .site-nav a { padding: 0.75rem 0; border-bottom: 1px solid var(--line); }
  .site-nav a:last-child { border-bottom: 0; }
  .nav-phone { border: 0; padding: 0.75rem 0; text-align: left; }
  .nav-phone:hover { background: none; color: var(--copper-deep) !important; }

  .hero { padding: 3rem 0; }
  .section { padding: 3rem 0; }
  .hero-facts { flex-wrap: wrap; gap: 1.2rem 2rem; }
  .field-row { grid-template-columns: 1fr; gap: 0; }
  .process-line { grid-template-columns: 1fr; }
}