/* ==========================================================================
   SparkProto Innovations — Global Stylesheet
   ========================================================================== */

:root {
  --navy-950: #020f1f;
  --navy-900: #071d38;
  --navy-800: #0b2a4d;
  --navy-700: #0b4170;
  --navy-600: #14548c;
  --navy-500: #2c4863;
  --slate-400: #5e829d;
  --slate-300: #8fa9bd;
  --gray-100: #f5f7f9;
  --gray-150: #eef1f4;
  --gray-200: #d9dfe4;
  --white: #ffffff;
  --spark: #3fa0e0;
  --spark-dark: #1f6fae;
  --spark-light: #7cc4f0;
  --ok-green: #2f8f5b;

  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-head: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  --radius: 6px;
  --radius-lg: 10px;
  --shadow-sm: 0 1px 3px rgba(2, 15, 31, 0.08);
  --shadow-md: 0 6px 20px rgba(2, 15, 31, 0.12);
  --shadow-lg: 0 20px 50px rgba(2, 15, 31, 0.22);
  --max-width: 1180px;
}

* , *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; overflow-x: hidden; }
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--navy-950);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
h1, h2, h3, h4 {
  font-family: var(--font-head);
  color: var(--navy-950);
  line-height: 1.15;
  margin: 0 0 0.5em;
  font-weight: 800;
  letter-spacing: -0.01em;
}
h1 { font-size: clamp(2.1rem, 4.2vw, 3.4rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.3rem); }
h3 { font-size: 1.25rem; }
p { margin: 0 0 1em; color: var(--navy-500); }
a { color: var(--navy-700); text-decoration: none; }
a:hover { color: var(--spark); }
img { max-width: 100%; display: block; }
ul { padding-left: 1.2em; color: var(--navy-500); }
li { margin-bottom: 0.4em; }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--spark-dark);
  margin-bottom: 14px;
}
.eyebrow::before {
  content: "";
  width: 22px;
  height: 2px;
  background: var(--spark);
  display: inline-block;
}
/* Brighten the accent label on dark navy backgrounds so it stays legible */
.hero .eyebrow, .page-hero .eyebrow, .section-dark .eyebrow {
  color: var(--spark-light);
}
.hero .eyebrow::before, .page-hero .eyebrow::before, .section-dark .eyebrow::before {
  background: var(--spark-light);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 26px;
  border-radius: var(--radius);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.01em;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease, color 0.15s ease;
  white-space: nowrap;
}
.btn-primary {
  background: var(--spark);
  color: var(--navy-950);
  box-shadow: var(--shadow-sm);
}
.btn-primary:hover { background: var(--spark-light); color: var(--navy-950); transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn-outline {
  background: transparent;
  border-color: rgba(255,255,255,0.55);
  color: var(--white);
}
.btn-outline:hover { background: rgba(255,255,255,0.12); color: var(--white); }
.btn-dark {
  background: var(--navy-950);
  color: var(--white);
}
.btn-dark:hover { background: var(--navy-800); color: var(--white); transform: translateY(-1px); }
.btn-block { width: 100%; }

/* ---------- Header / Nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.96);
  backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid var(--gray-200);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 24px;
  max-width: var(--max-width);
  margin: 0 auto;
  gap: 20px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  color: var(--navy-950);
  font-size: 1.05rem;
}
.brand img { height: 46px; width: auto; }
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-text .brand-main { font-size: 1.02rem; }
.brand-text .brand-sub { font-size: 0.68rem; font-weight: 700; letter-spacing: 0.12em; color: var(--slate-400); text-transform: uppercase; }

.main-nav { display: flex; align-items: center; gap: 30px; }
.main-nav ul { display: flex; gap: 26px; list-style: none; margin: 0; padding: 0; }
.main-nav a {
  color: var(--navy-900);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 6px 2px;
  border-bottom: 2px solid transparent;
}
.main-nav a:hover, .main-nav a.active { color: var(--navy-700); border-bottom-color: var(--spark); }
.header-cta { display: flex; align-items: center; gap: 14px; }
.header-phone { display: flex; align-items: center; gap: 8px; font-weight: 700; color: var(--navy-950); font-size: 0.95rem; }
.header-phone svg { flex-shrink: 0; }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span { display: block; width: 26px; height: 3px; background: var(--navy-950); margin: 5px 0; border-radius: 2px; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  background: linear-gradient(120deg, var(--navy-950) 0%, var(--navy-900) 45%, var(--navy-700) 100%);
  color: var(--white);
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(115deg, rgba(255,255,255,0.045) 0px, rgba(255,255,255,0.045) 1px, transparent 1px, transparent 64px);
  pointer-events: none;
}
.hero::after {
  content: "";
  position: absolute;
  right: -12%;
  top: -20%;
  width: 620px;
  height: 620px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, rgba(63,160,224,0.35), rgba(63,160,224,0) 65%);
  pointer-events: none;
}
.hero-inner {
  position: relative;
  z-index: 1;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 96px 24px 84px;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 48px;
  align-items: center;
}
.hero h1 { color: var(--white); margin-bottom: 20px; }
.hero .lede { color: var(--slate-300); font-size: 1.12rem; max-width: 56ch; margin-bottom: 30px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 30px; }
.hero-stats { display: flex; gap: 34px; flex-wrap: wrap; padding-top: 18px; border-top: 1px solid rgba(255,255,255,0.15); }
.hero-stat .num { font-size: 1.7rem; font-weight: 800; color: var(--spark-light); display: block; }
.hero-stat .label { font-size: 0.8rem; color: var(--slate-300); text-transform: uppercase; letter-spacing: 0.06em; }

.hero-panel {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.16);
  border-radius: var(--radius-lg);
  padding: 26px;
  backdrop-filter: blur(6px);
}
.hero-panel h3 { color: var(--white); font-size: 1.05rem; display: flex; align-items: center; gap: 10px; }
.hero-panel ul { list-style: none; padding: 0; margin: 16px 0 0; }
.hero-panel li { display: flex; gap: 10px; align-items: flex-start; color: var(--slate-300); font-size: 0.93rem; margin-bottom: 12px; }
.hero-panel li svg { flex-shrink: 0; margin-top: 2px; color: var(--spark-light); }

/* ---------- Sub / interior page hero ---------- */
.page-hero {
  background: linear-gradient(120deg, var(--navy-950), var(--navy-800));
  color: var(--white);
  padding: 62px 0 54px;
  position: relative;
  overflow: hidden;
}
.page-hero::after {
  content: "";
  position: absolute;
  right: -8%;
  bottom: -60%;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(63,160,224,0.28), rgba(63,160,224,0) 65%);
}
.page-hero .container { position: relative; z-index: 1; }
.page-hero h1 { color: var(--white); margin-bottom: 12px; }
.page-hero p { color: var(--slate-300); font-size: 1.05rem; max-width: 62ch; margin-bottom: 0; }
.breadcrumb { font-size: 0.82rem; color: var(--slate-400); margin-bottom: 14px; }
.breadcrumb a { color: var(--slate-300); }
.breadcrumb a:hover { color: var(--spark-light); }

/* ---------- Sections ---------- */
section { padding: 76px 0; }
.section-alt { background: var(--gray-100); }
.section-dark {
  background: var(--navy-950);
  color: var(--white);
}
.section-dark h2, .section-dark h3 { color: var(--white); }
.section-dark p { color: var(--slate-300); }
.section-head { max-width: 720px; margin-bottom: 44px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }

/* ---------- Grids / Cards ---------- */
.grid { display: grid; gap: 28px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 30px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: var(--slate-300); }
.card .icon-wrap {
  width: 54px; height: 54px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--navy-900), var(--navy-700));
  display: flex; align-items: center; justify-content: center;
  color: var(--spark-light);
  margin-bottom: 18px;
}
.card h3 { margin-bottom: 10px; }
.card p:last-child { margin-bottom: 0; }
.card ul { margin-top: 10px; }

.card-dark {
  background: var(--navy-900);
  border: 1px solid var(--navy-700);
  color: var(--white);
}
.card-dark h3 { color: var(--white); }
.card-dark p { color: var(--slate-300); }
.card-dark .icon-wrap { background: rgba(63,160,224,0.15); color: var(--spark-light); }

/* Value cards (SPARK) */
.value-card {
  display: flex;
  gap: 18px;
  padding: 26px;
  border-radius: var(--radius-lg);
  background: var(--white);
  border: 1px solid var(--gray-200);
}
.value-letter {
  flex-shrink: 0;
  width: 56px; height: 56px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--spark), var(--spark-dark));
  color: var(--navy-950);
  font-weight: 900;
  font-size: 1.5rem;
  display: flex; align-items: center; justify-content: center;
}
.value-card h3 { margin-bottom: 4px; }
.value-card .sub { font-size: 0.78rem; font-weight: 800; letter-spacing: 0.08em; text-transform: uppercase; color: var(--spark-dark); margin-bottom: 6px; display: block; }

/* ---------- Equipment list ---------- */
.equip-row {
  display: grid;
  grid-template-columns: 84px 1fr auto;
  gap: 22px;
  align-items: center;
  padding: 24px 0;
  border-bottom: 1px solid var(--gray-200);
}
.equip-row:last-child { border-bottom: none; }
.equip-icon {
  width: 84px; height: 84px;
  border-radius: var(--radius-lg);
  background: var(--navy-950);
  display: flex; align-items: center; justify-content: center;
  color: var(--spark-light);
}
.equip-row h3 { margin-bottom: 6px; }
.equip-tags { display: flex; gap: 8px; flex-wrap: wrap; }
.tag {
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  padding: 5px 11px;
  border-radius: 100px;
  background: var(--gray-150);
  color: var(--navy-700);
  white-space: nowrap;
}
.equip-spec { text-align: right; }
.equip-spec .big { font-size: 1.5rem; font-weight: 800; color: var(--navy-950); display: block; }
.equip-spec .small { font-size: 0.76rem; color: var(--slate-400); text-transform: uppercase; letter-spacing: 0.05em; }

/* ---------- Process steps ---------- */
.steps { counter-reset: step; display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.step { position: relative; padding: 26px 22px; background: var(--white); border: 1px solid var(--gray-200); border-radius: var(--radius-lg); }
.step::before {
  counter-increment: step;
  content: counter(step);
  display: flex; align-items: center; justify-content: center;
  width: 34px; height: 34px;
  border-radius: 50%;
  background: var(--navy-950); color: var(--spark-light);
  font-weight: 800; font-size: 0.95rem;
  margin-bottom: 14px;
}

/* ---------- CTA band ---------- */
.cta-band {
  background: linear-gradient(120deg, var(--navy-950), var(--navy-700));
  color: var(--white);
  border-radius: var(--radius-lg);
  padding: 50px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  flex-wrap: wrap;
}
.cta-band h2 { color: var(--white); margin-bottom: 8px; }
.cta-band p { color: var(--slate-300); margin: 0; }
.cta-actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* ---------- Footer ---------- */
.site-footer { background: var(--navy-950); color: #e9f0f5; padding: 60px 0 26px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; min-width: 0; }
.footer-brand { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.footer-brand img { height: 42px; flex-shrink: 0; }
.footer-brand span { color: var(--white); font-weight: 800; }
.site-footer p { color: #e9f0f5; }
.site-footer h4 { color: var(--white); font-size: 0.85rem; letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 16px; }
.site-footer ul { list-style: none; padding: 0; margin: 0; min-width: 0; color: #e9f0f5; }
.site-footer li { margin-bottom: 10px; min-width: 0; }
.site-footer a { color: #e9f0f5; font-size: 0.92rem; overflow-wrap: anywhere; word-break: break-word; }
.site-footer a:hover { color: var(--spark-light); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.18);
  padding-top: 22px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.82rem;
  color: #cfdae2;
}

/* ---------- Contact page ---------- */
.contact-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 46px; }
.contact-info-card {
  background: var(--navy-950);
  color: var(--white);
  border-radius: var(--radius-lg);
  padding: 34px;
}
.contact-info-card h3 { color: var(--white); }
.contact-line { display: flex; gap: 14px; align-items: flex-start; margin-bottom: 22px; }
.contact-line svg { color: var(--spark-light); flex-shrink: 0; margin-top: 3px; }
.contact-line .label { font-size: 0.76rem; text-transform: uppercase; letter-spacing: 0.08em; color: #c3d3de; margin-bottom: 3px; }
.contact-line a, .contact-line span.value { color: var(--white); font-weight: 700; font-size: 1.02rem; }

.form-card { background: var(--white); border: 1px solid var(--gray-200); border-radius: var(--radius-lg); padding: 34px; box-shadow: var(--shadow-sm); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field { margin-bottom: 18px; }
.field label { display: block; font-size: 0.85rem; font-weight: 700; margin-bottom: 6px; color: var(--navy-900); }
.field input, .field select, .field textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--navy-950);
  background: var(--gray-100);
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none;
  border-color: var(--navy-700);
  background: var(--white);
}
.field textarea { resize: vertical; min-height: 120px; }
.form-note { font-size: 0.82rem; color: var(--slate-400); margin-top: 10px; }
.form-success {
  display: none;
  background: rgba(47,143,91,0.1);
  border: 1px solid var(--ok-green);
  color: #1f6b41;
  padding: 14px 16px;
  border-radius: var(--radius);
  margin-bottom: 18px;
  font-weight: 600;
  font-size: 0.9rem;
}

/* ---------- Misc ---------- */
.divider-icon { color: var(--spark); }
.badge-row { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 10px; }
.badge {
  display: flex; align-items: center; gap: 8px;
  padding: 10px 16px;
  border: 1px solid var(--gray-200);
  border-radius: 100px;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--navy-800);
  background: var(--white);
}
.badge svg { color: var(--spark-dark); }

.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.stat-strip { display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; padding: 34px 0; border-top: 1px solid var(--gray-200); border-bottom: 1px solid var(--gray-200); }
.stat-strip .stat .num { font-size: 2.1rem; font-weight: 800; color: var(--navy-950); display: block; }
.stat-strip .stat .label { font-size: 0.85rem; color: var(--slate-400); }

.quote-block {
  border-left: 4px solid var(--spark);
  padding: 4px 0 4px 22px;
  font-size: 1.15rem;
  color: var(--navy-800);
  font-weight: 600;
  margin: 26px 0;
}

.industries-strip { display: flex; gap: 12px; flex-wrap: wrap; }
.industries-strip .tag { background: var(--white); border: 1px solid var(--gray-200); }

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .hero-inner { grid-template-columns: 1fr; padding-top: 60px; }
  .contact-grid { grid-template-columns: 1fr; }
  .two-col { grid-template-columns: 1fr; }
  .steps { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
  .header-inner { padding: 10px 14px; gap: 10px; }
  .brand { gap: 8px; }
  .brand img { height: 34px; }
  .brand-text .brand-main { font-size: 0.82rem; white-space: nowrap; }
  .brand-text .brand-sub { display: none; }
  .header-cta { gap: 6px; }
  .header-cta .btn-primary { padding: 10px 14px; font-size: 0.82rem; }
  .header-phone { display: none; }
}

@media (max-width: 720px) {
  .main-nav { position: absolute; top: 100%; left: 0; right: 0; height: 100vh; background: var(--white); flex-direction: column; align-items: flex-start; padding: 26px 24px; transform: translateX(100%); transition: transform 0.25s ease; overflow-y: auto; box-shadow: var(--shadow-lg); }
  .main-nav.open { transform: translateX(0); }
  .main-nav ul { flex-direction: column; gap: 4px; width: 100%; }
  .main-nav a { display: block; padding: 14px 4px; border-bottom: 1px solid var(--gray-150); width: 100%; }
  .header-cta .header-phone-text { display: none; }
  .nav-toggle { display: block; }
  .header-cta { gap: 8px; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .equip-row { grid-template-columns: 60px 1fr; }
  .equip-spec { grid-column: 1 / -1; text-align: left; display: flex; gap: 10px; align-items: baseline; margin-top: 6px; }
  .steps { grid-template-columns: 1fr; }
  .cta-band { flex-direction: column; align-items: flex-start; padding: 32px; }
  section { padding: 54px 0; }
  .footer-grid { grid-template-columns: 1fr; gap: 34px; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
}