/* ==========================================================================
   ChipIOT Embedded Solutions — brand stylesheet
   Typography: Oswald (headings) + IBM Plex Mono (body/technical labels)
   Colors: blue #3B5DF1, orange #FA9600
   ========================================================================== */

:root {
  --blue: #3B5DF1;
  --blue-dark: #2A45C4;
  --orange: #FA9600;
  --orange-dark: #D67E00;
  --ink: #12141C;
  --ink-soft: #3A3D4A;
  --bg: #F1F2F7;
  --paper: #FFFFFF;
  --paper-soft: #E5E8F1;
  --line: #D9DCE9;

  --font-head: "Oswald", "Arial Narrow", sans-serif;
  --font-body: "IBM Plex Mono", "Courier New", monospace;

  --container: 1160px;
  --radius: 4px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  color: var(--ink-soft);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-head);
  color: var(--ink);
  text-transform: uppercase;
  letter-spacing: 0.02em;
  line-height: 1.15;
  margin: 0 0 0.6em;
}

h1 { font-size: clamp(2.1rem, 5vw, 3.4rem); }
h2 { font-size: clamp(1.6rem, 3.4vw, 2.3rem); }
h3 { font-size: 1.25rem; }

p { margin: 0 0 1.1em; }

a { color: var(--blue); text-decoration: none; }
a:hover { color: var(--blue-dark); }

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

.eyebrow {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 0.9em;
}

.eyebrow::before {
  content: "";
  display: inline-block;
  width: 22px;
  height: 2px;
  background: var(--orange);
  margin-right: 10px;
  vertical-align: middle;
}

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

section { padding: 88px 0; }
.section-tight { padding: 56px 0; }
.bg-soft { background: var(--paper-soft); }
.bg-dark { background: var(--ink); color: #C6C9DE; }
.bg-dark h2, .bg-dark h3 { color: #fff; }

.text-center { text-align: center; }
.lede { font-size: 1.1rem; max-width: 640px; }
.center-col { margin-left: auto; margin-right: auto; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 14px 26px;
  border-radius: var(--radius);
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, background 0.15s ease, color 0.15s ease, border-color .15s ease;
}
.btn:hover { transform: translateY(-2px); }

.btn-primary { background: var(--blue); color: #fff; }
.btn-primary:hover { background: var(--blue-dark); color: #fff; }

.btn-accent { background: var(--orange); color: #12141C; }
.btn-accent:hover { background: var(--orange-dark); color: #12141C; }

.btn-ghost { border-color: currentColor; color: var(--ink); background: transparent; }
.btn-ghost:hover { background: var(--ink); color: #fff; }

.btn-ghost-light { border-color: rgba(255,255,255,.6); color: #fff; }
.btn-ghost-light:hover { background: #fff; color: var(--ink); }

.btn-row { display: flex; gap: 16px; flex-wrap: wrap; }

/* ==== Header / Nav ==== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(241,242,247,0.96);
  border-bottom: 1px solid var(--line);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  max-width: var(--container);
  margin: 0 auto;
}

.brand { display: flex; align-items: center; gap: 10px; }
.brand svg { width: 34px; height: 34px; }
.brand-word {
  font-family: var(--font-head);
  font-size: 1.3rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--ink);
}
.brand-word b { color: var(--blue); font-weight: 600; }
.brand-word span { color: var(--orange); font-size: 1.2em; }

.nav-links { display: flex; align-items: center; gap: 30px; list-style: none; margin: 0; padding: 0; }
.nav-links a {
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-soft);
  padding: 6px 0;
  border-bottom: 2px solid transparent;
}
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--blue); border-color: var(--orange); }

.nav-cta { margin-left: 8px; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}
.nav-toggle span { width: 24px; height: 2px; background: var(--ink); display: block; }

/* ==== Hero ==== */
.hero {
  position: relative;
  background: var(--ink);
  color: #fff;
  overflow: hidden;
  padding: 100px 0 120px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
  position: relative;
  z-index: 2;
}

.hero h1 { color: #fff; }
.hero .lede { color: #C6C9DE; max-width: 520px; }

.hero-art {
  position: relative;
  aspect-ratio: 4 / 3.2;
  border-radius: var(--radius);
  overflow: hidden;
  background: linear-gradient(135deg, var(--blue) 0%, #1B2C8A 60%);
}

.hero-art .tri {
  position: absolute;
  inset: 0;
}

.hero-art img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.photo-section {
  background-size: cover;
  background-position: center;
}

.hero-note {
  position: absolute;
  left: 16px;
  bottom: 16px;
  right: 16px;
  background: rgba(18,20,28,0.72);
  color: #fff;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  padding: 10px 12px;
  border-left: 3px solid var(--orange);
}

.hero-bg-shape {
  position: absolute;
  inset: 0;
  z-index: 1;
  opacity: 0.5;
  pointer-events: none;
}

/* Diagonal divider (triangle motif carried from the logo) */
.divider {
  position: relative;
  height: 64px;
  overflow: hidden;
}
.divider svg { width: 100%; height: 100%; display: block; }

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

.card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 32px 26px;
  position: relative;
  transition: border-color .15s ease, transform .15s ease;
}
.card:hover { border-color: var(--blue); transform: translateY(-4px); }
.card .num {
  font-family: var(--font-head);
  font-size: 0.85rem;
  color: var(--orange);
  letter-spacing: 0.1em;
  margin-bottom: 14px;
  display: block;
}
.card h3 { margin-bottom: 10px; }
.card p { margin-bottom: 0; font-size: 0.94rem; }

.card-icon {
  width: 46px;
  height: 46px;
  margin-bottom: 18px;
}

/* Step circles — How We Work */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  counter-reset: step;
  position: relative;
}
.step { text-align: left; position: relative; padding-top: 8px; }
.step-circle {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  border: 2px solid var(--orange);
  color: var(--orange);
  font-family: var(--font-head);
  font-size: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 22px;
  background: var(--ink);
}
.step h3 { color: #fff; }
.step p { color: #B8BBD1; }

/* Process rail connecting the steps on desktop */
.steps::before {
  content: "";
  position: absolute;
  top: 40px;
  left: calc(100% / 6);
  right: calc(100% / 6);
  height: 2px;
  background: repeating-linear-gradient(90deg, var(--orange) 0 8px, transparent 8px 16px);
  z-index: 0;
}

/* Founder */
.founder {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 48px;
  align-items: center;
}
.founder-photo {
  width: 100%;
  aspect-ratio: 1/1;
  border-radius: var(--radius);
  object-fit: cover;
  display: block;
  position: relative;
}
.founder blockquote {
  margin: 0 0 20px;
  font-size: 1.08rem;
  color: var(--ink);
  border-left: 3px solid var(--orange);
  padding-left: 20px;
}
.founder-name { font-family: var(--font-head); text-transform: uppercase; color: var(--blue); letter-spacing: .04em; }
.founder-role { font-size: 0.82rem; color: var(--ink-soft); }

/* Why us */
.why-icon {
  width: 48px; height: 48px;
  border: 2px solid var(--orange);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 16px;
  color: var(--orange);
  font-family: var(--font-head);
}

/* ABHAY product page */
.abhay-hero {
  background: linear-gradient(120deg, #0E1330 0%, #1B2C8A 55%, var(--blue) 100%);
  color: #fff;
  padding: 100px 0 90px;
  position: relative;
  overflow: hidden;
}
.abhay-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(250,150,0,0.14);
  border: 1px solid var(--orange);
  color: var(--orange);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 6px 12px;
  border-radius: 999px;
  margin-bottom: 22px;
}
.abhay-badge::before {
  content: "";
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--orange);
  box-shadow: 0 0 0 4px rgba(250,150,0,0.25);
}

.spec-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}
.spec-table tr { border-bottom: 1px solid var(--line); }
.spec-table td { padding: 14px 10px; }
.spec-table td:first-child {
  color: var(--ink);
  font-weight: 600;
  width: 42%;
}

.tag-list { display: flex; flex-wrap: wrap; gap: 10px; }
.tag {
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border: 1px solid var(--line);
  padding: 7px 12px;
  border-radius: 999px;
  color: var(--ink-soft);
}

/* Contact */
.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 56px;
}
.contact-info-item {
  display: flex;
  gap: 14px;
  margin-bottom: 26px;
  align-items: flex-start;
}
.contact-info-item .ico {
  width: 38px; height: 38px;
  border-radius: 50%;
  background: var(--blue);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.contact-info-item strong { display: block; color: var(--ink); font-family: var(--font-head); letter-spacing: .02em; text-transform: uppercase; font-size: .85rem; }

form.contact-form {
  display: grid;
  gap: 18px;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
label {
  display: block;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink);
  margin-bottom: 8px;
  font-weight: 600;
}
input, select, textarea {
  width: 100%;
  font-family: var(--font-body);
  font-size: 0.94rem;
  padding: 13px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  color: var(--ink);
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(59,93,241,0.14);
}
textarea { resize: vertical; min-height: 130px; }
.form-note { font-size: 0.78rem; color: var(--ink-soft); margin-top: -6px; }
.form-success {
  display: none;
  background: #EFF6EC;
  border: 1px solid #8FC08A;
  color: #2C5F27;
  padding: 14px 16px;
  border-radius: var(--radius);
  font-size: 0.88rem;
}
.form-success.show { display: block; }

/* Footer */
.site-footer {
  background: var(--ink);
  color: #9EA2BC;
  padding: 64px 0 28px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-grid h4 {
  color: #fff;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  margin-bottom: 18px;
}
.footer-grid ul { list-style: none; margin: 0; padding: 0; }
.footer-grid li { margin-bottom: 10px; }
.footer-grid a { color: #9EA2BC; font-size: 0.9rem; }
.footer-grid a:hover { color: var(--orange); }
.footer-brand { display: flex; align-items: center; gap: 10px; margin-bottom: 14px; }
.footer-brand svg { width: 30px; height: 30px; }
.footer-brand span { font-family: var(--font-head); color: #fff; letter-spacing: .02em; text-transform: uppercase; font-size: 1.1rem; }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 24px;
  font-size: 0.78rem;
  flex-wrap: wrap;
  gap: 10px;
}

/* Page intro banner (non-home pages) */
.page-banner {
  background: var(--ink);
  color: #fff;
  padding: 72px 0 56px;
  position: relative;
  overflow: hidden;
}
.page-banner h1 { color: #fff; margin-bottom: 12px; }
.page-banner p { color: #B8BBD1; max-width: 560px; margin: 0; }
.crumb { font-size: 0.76rem; color: var(--orange); letter-spacing: .08em; text-transform: uppercase; margin-bottom: 14px; }

/* Utility */
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }

/* ==== Responsive ==== */
@media (max-width: 900px) {
  .hero-grid, .founder, .contact-grid { grid-template-columns: 1fr; }
  .founder-photo { max-width: 220px; }
  .grid-3, .grid-4, .grid-2 { grid-template-columns: 1fr 1fr; }
  .steps { grid-template-columns: 1fr; gap: 32px; }
  .steps::before { display: none; }
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
}

@media (max-width: 720px) {
  .nav-links { position: fixed; top: 66px; left: 0; right: 0; bottom: 0; background: #fff; flex-direction: column; align-items: flex-start; padding: 30px 24px; gap: 22px; transform: translateX(100%); transition: transform .25s ease; overflow-y: auto; }
  .nav-links.open { transform: translateX(0); }
  .nav-toggle { display: flex; }
  .nav-cta { margin-left: 0; }
  .grid-3, .grid-4, .grid-2 { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  section { padding: 56px 0; }
  .hero { padding: 56px 0 72px; }
}