/* ===========================================================
   Sparkon Labs — shared stylesheet
   Modern robotics theme (inspired by robolink.com layout)
   =========================================================== */

:root {
  --bg:        #0b1020;
  --bg-soft:   #121a31;
  --surface:   #ffffff;
  --ink:       #16203a;
  --ink-soft:  #4a5673;
  --line:      #e5e9f2;
  --brand:     #0ea5e9;   /* sky blue   */
  --brand-2:   #6366f1;   /* indigo     */
  --accent:    #f59e0b;   /* amber      */
  --good:      #10b981;
  --radius:    16px;
  --shadow:    0 10px 30px rgba(16, 32, 70, 0.10);
  --maxw:      1120px;
  --font:      "Segoe UI", system-ui, -apple-system, Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: #f6f8fc;
  line-height: 1.65;
}

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

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

.container {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 22px;
}

/* ---------- Top navigation ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(11, 16, 32, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
  gap: 16px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.15rem;
  color: #fff;
  letter-spacing: .3px;
}
.brand:hover { text-decoration: none; }
.brand img { height: 34px; width: auto; display: block; }
.nav .brand { background: #fff; padding: 6px 13px; border-radius: 12px; }
.brand .dot {
  width: 12px; height: 12px; border-radius: 50%;
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
  box-shadow: 0 0 0 4px rgba(14,165,233,.18);
}
.nav-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px;
  list-style: none;
  margin: 0; padding: 0;
}
.nav-links a {
  color: #c7d2e8;
  font-size: .92rem;
  font-weight: 600;
  padding: 8px 12px;
  border-radius: 9px;
  transition: background .15s, color .15s;
}
.nav-links a:hover { background: rgba(255,255,255,.08); color:#fff; text-decoration: none; }
.nav-links a.active { color: #fff; background: linear-gradient(135deg, var(--brand), var(--brand-2)); }

.nav-toggle {
  display: none;
  background: none; border: 0; cursor: pointer;
  color: #fff; font-size: 1.5rem; line-height: 1;
}

/* push nav links + language toggle to the right */
.nav-links { margin-left: auto; }

/* language (EN/AR) toggle button */
.lang-toggle {
  margin-left: 14px;
  flex: none;
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
  color: #fff;
  border: 0;
  font-weight: 700;
  font-size: .9rem;
  padding: 8px 16px;
  border-radius: 999px;
  cursor: pointer;
  white-space: nowrap;
}
.lang-toggle:hover { filter: brightness(1.08); }

/* ---------- Right-to-left (Arabic) adjustments ---------- */
[dir="rtl"] .nav-links { margin-left: 0; margin-right: auto; }
[dir="rtl"] .lang-toggle { margin-left: 0; margin-right: 14px; }
[dir="rtl"] .split .panel ul { padding-left: 0; padding-right: 18px; }
[dir="rtl"] .info-list li { flex-direction: row-reverse; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  padding: 12px 22px;
  border-radius: 999px;
  font-weight: 700;
  font-size: .95rem;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform .12s ease, box-shadow .15s ease, background .15s;
}
.btn:hover { text-decoration: none; transform: translateY(-2px); }
.btn-primary {
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
  color: #fff;
  box-shadow: 0 8px 20px rgba(99,102,241,.35);
}
.btn-ghost {
  background: transparent;
  color: #fff;
  border-color: rgba(255,255,255,.4);
}
.btn-dark {
  background: var(--ink);
  color: #fff;
}

/* ---------- Hero ---------- */
.hero {
  background:
    radial-gradient(1200px 500px at 80% -10%, rgba(99,102,241,.35), transparent 60%),
    radial-gradient(900px 500px at 0% 10%, rgba(14,165,233,.30), transparent 55%),
    linear-gradient(rgba(11,16,32,.50), rgba(11,16,32,.64)),
    url("../sparkon_labs_logo.png") center bottom / cover no-repeat,
    var(--bg);
  color: #fff;
  padding: 86px 0 96px;
}
.hero .kicker {
  display: inline-block;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  font-size: .78rem;
  color: var(--accent);
  margin-bottom: 14px;
}
.hero h1 {
  font-size: clamp(2.1rem, 5vw, 3.4rem);
  line-height: 1.1;
  margin: 0 0 18px;
  font-weight: 800;
}
.hero p.lead {
  font-size: 1.12rem;
  color: #c7d2e8;
  max-width: 720px;
  margin: 0 0 30px;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }

/* ---------- Page header (interior pages) ---------- */
.page-head {
  background:
    radial-gradient(900px 400px at 90% -20%, rgba(99,102,241,.30), transparent 60%),
    linear-gradient(rgba(11,16,32,.52), rgba(11,16,32,.66)),
    url("../sparkon_labs_logo.png") center bottom / cover no-repeat,
    var(--bg);
  color: #fff;
  padding: 180px 0 190px;
}
.page-head .kicker {
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 2px;
  font-size: .76rem;
  font-weight: 700;
}
.page-head h1 { font-size: clamp(1.9rem, 4vw, 2.7rem); margin: 8px 0 10px; }
.page-head p { color: #c7d2e8; max-width: 760px; margin: 0; }

/* ---------- Sections ---------- */
.section { padding: 64px 0; }
.section h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin: 0 0 8px;
}
.section .sub { color: var(--ink-soft); margin: 0 0 34px; max-width: 720px; }
.center { text-align: center; }
.center .sub { margin-left: auto; margin-right: auto; }

/* ---------- Cards / grids ---------- */
.grid {
  display: grid;
  gap: 22px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}
.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
  transition: transform .15s ease, box-shadow .15s ease;
}
.card:hover { transform: translateY(-4px); box-shadow: 0 16px 40px rgba(16,32,70,.14); }
.card .ico {
  width: 52px; height: 52px;
  display: grid; place-items: center;
  border-radius: 14px;
  font-size: 1.5rem;
  margin-bottom: 16px;
  background: linear-gradient(135deg, rgba(14,165,233,.15), rgba(99,102,241,.15));
}
.card h3 { margin: 0 0 8px; font-size: 1.2rem; }
.card p { margin: 0; color: var(--ink-soft); }

/* link-cards on landing page */
.linkcard {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.linkcard .go {
  margin-top: 18px;
  font-weight: 700;
  color: var(--brand);
}
.linkcard:hover .go { text-decoration: underline; }

/* ---------- Two-column block ---------- */
.split {
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 40px;
  align-items: center;
}
.split .panel {
  background: linear-gradient(135deg, var(--bg), var(--bg-soft));
  color: #fff;
  border-radius: var(--radius);
  padding: 38px;
  box-shadow: var(--shadow);
}
.split .panel ul { margin: 0; padding-left: 18px; }
.split .panel li { margin: 8px 0; color: #c7d2e8; }

/* ---------- Contact ---------- */
.contact-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 34px; }
.form-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px;
  box-shadow: var(--shadow);
}
.field { margin-bottom: 18px; }
.field label { display:block; font-weight: 600; margin-bottom: 6px; font-size: .92rem; }
.field input, .field textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 10px;
  font: inherit;
  background: #fbfcff;
}
.field input:focus, .field textarea:focus {
  outline: none;
  border-color: var(--brand);
  box-shadow: 0 0 0 3px rgba(14,165,233,.15);
}
.field textarea { resize: vertical; min-height: 130px; }
.note { font-size: .85rem; color: var(--ink-soft); margin-top: 10px; }
.info-list { list-style: none; margin: 0; padding: 0; }
.info-list li { display: flex; gap: 12px; align-items: flex-start; margin-bottom: 18px; }
.info-list .ico {
  width: 44px; height: 44px; flex: none;
  display: grid; place-items: center; border-radius: 12px; font-size: 1.2rem;
  background: linear-gradient(135deg, rgba(14,165,233,.15), rgba(99,102,241,.15));
}

/* ---------- CTA band ---------- */
.cta {
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
  color: #fff;
  text-align: center;
  padding: 60px 0;
}
.cta h2 { margin: 0 0 10px; font-size: clamp(1.6rem, 3vw, 2.2rem); }
.cta p { margin: 0 0 24px; color: #eaf2ff; }

/* ---------- Footer ---------- */
.footer {
  background: var(--bg);
  color: #aab6d3;
  padding: 40px 0 28px;
}
.footer .cols { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 24px; }
.footer a { color: #aab6d3; }
.footer a:hover { color: #fff; }
.footer .brand { display: inline-flex; background: #fff; padding: 8px 14px; border-radius: 12px; margin-bottom: 14px; }
.footer .brand img { height: 32px; }
.footer .fcol h4 { color: #fff; margin: 0 0 12px; font-size: .95rem; }
.footer .fcol ul { list-style: none; margin: 0; padding: 0; }
.footer .fcol li { margin: 6px 0; }
.footer .copy {
  border-top: 1px solid rgba(255,255,255,.08);
  margin-top: 28px; padding-top: 18px;
  font-size: .85rem; color: #7e8cb0;
}

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .split { grid-template-columns: 1fr; }
  .contact-wrap { grid-template-columns: 1fr; }
  .nav-toggle { display: block; }
  .nav-links {
    display: none;
    position: absolute;
    top: 64px; left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--bg);
    border-bottom: 1px solid rgba(255,255,255,.08);
    padding: 8px 14px 16px;
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 12px; border-radius: 8px; }
}