/* =========================================================
   Passive Electronics Co. — Company Intro Site
   Written with logical CSS properties (margin-inline, etc.)
   so the layout flips cleanly when an RTL language (Arabic)
   is added later via <html dir="rtl">.
   ========================================================= */

:root {
  --color-bg: #0b0e11;
  --color-bg-alt: #11151a;
  --color-surface: #161b21;
  --color-border: #242b33;
  --color-text: #e8edf2;
  --color-text-dim: #9aa5b1;
  --color-accent: #4fd1c5;
  --color-accent-dim: #2f8f86;
  --color-white: #ffffff;
  --font-base: "Inter", "Segoe UI", -apple-system, BlinkMacSystemFont, sans-serif;
  --max-width: 1180px;
  --radius: 14px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-base);
  scroll-behavior: smooth;
}

body {
  font-size: 16px;
  line-height: 1.6;
}

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

a { color: inherit; text-decoration: none; }

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

section { padding-block: 88px; }

h1, h2, h3, h4 { margin: 0; line-height: 1.25; }

h2.section-title {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 700;
  margin-bottom: 14px;
}

p.section-sub {
  color: var(--color-text-dim);
  font-size: 17px;
  max-width: 680px;
  margin-bottom: 48px;
}

.eyebrow {
  display: inline-block;
  color: var(--color-accent);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 14px;
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11, 14, 17, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 16px;
}

.brand {
  font-weight: 700;
  font-size: 18px;
  letter-spacing: 0.01em;
}

.brand span { color: var(--color-accent); }

.main-nav { display: flex; gap: 32px; }

.main-nav a {
  color: var(--color-text-dim);
  font-size: 15px;
  font-weight: 500;
  transition: color 0.15s;
}

.main-nav a:hover { color: var(--color-text); }

.header-cta {
  background: var(--color-accent);
  color: #06201d;
  font-weight: 600;
  font-size: 14px;
  padding: 10px 20px;
  border-radius: 999px;
  transition: transform 0.15s, background 0.15s;
}

.header-cta:hover { background: #6fe0d5; transform: translateY(-1px); }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--color-text);
  font-size: 24px;
  cursor: pointer;
}

/* ---------- Hero ---------- */
.hero {
  padding-block: 120px 100px;
  position: relative;
  overflow: hidden;
  background: radial-gradient(ellipse 800px 500px at 80% -10%, rgba(79, 209, 197, 0.18), transparent 60%);
}

.hero .container {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}

.hero h1 {
  font-size: clamp(36px, 5vw, 54px);
  font-weight: 800;
  letter-spacing: -0.01em;
  margin-bottom: 20px;
}

.hero h1 .accent { color: var(--color-accent); }

.hero p.lead {
  color: var(--color-text-dim);
  font-size: 18px;
  max-width: 540px;
  margin-bottom: 36px;
}

.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform 0.15s, background 0.15s, border-color 0.15s;
}

.btn-primary {
  background: var(--color-accent);
  color: #06201d;
}
.btn-primary:hover { background: #6fe0d5; transform: translateY(-1px); }

.btn-secondary {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-border);
}
.btn-secondary:hover { border-color: var(--color-accent); color: var(--color-accent); }

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 56px;
}

.stat-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px 16px;
  text-align: center;
}

.stat-card .num {
  font-size: 26px;
  font-weight: 800;
  color: var(--color-accent);
}

.stat-card .label {
  font-size: 13px;
  color: var(--color-text-dim);
  margin-top: 4px;
}

.hero-visual {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 24px;
  padding: 28px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.hero-visual img {
  border-radius: 12px;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  background: #1c2128;
}

/* ---------- Trust / Logos ---------- */
.trust-strip {
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg-alt);
  padding-block: 40px;
}

.trust-strip p {
  text-align: center;
  color: var(--color-text-dim);
  font-size: 13px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 24px;
}

.logo-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 36px;
}

.logo-grid .logo-chip {
  color: var(--color-text-dim);
  font-weight: 700;
  font-size: 18px;
  opacity: 0.8;
  letter-spacing: 0.02em;
}

/* ---------- About ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: start;
}

.about-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px;
}

.about-card h3 {
  font-size: 18px;
  margin-bottom: 10px;
  color: var(--color-accent);
}

.about-card p { color: var(--color-text-dim); margin: 0; font-size: 15px; }

.about-list { display: grid; gap: 18px; margin-top: 8px; }

.timeline {
  display: grid;
  gap: 24px;
  border-inline-start: 2px solid var(--color-border);
  padding-inline-start: 24px;
}

.timeline-item .year {
  color: var(--color-accent);
  font-weight: 700;
  font-size: 14px;
}

.timeline-item p { margin: 4px 0 0; color: var(--color-text-dim); font-size: 15px; }

/* ---------- Products ---------- */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}

.product-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.15s, transform 0.15s;
}

.product-card:hover { border-color: var(--color-accent-dim); transform: translateY(-3px); }

.product-card .img-wrap {
  background: #1c2128;
  height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.product-card .img-wrap img {
  height: 100%;
  width: 100%;
  object-fit: contain;
  padding: 18px;
}

.product-card .body { padding: 20px; }

.product-card .tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-accent);
  background: rgba(79, 209, 197, 0.1);
  padding: 4px 10px;
  border-radius: 999px;
  margin-bottom: 10px;
}

.product-card h3 { font-size: 17px; margin-bottom: 6px; }
.product-card p { font-size: 14px; color: var(--color-text-dim); margin: 0 0 14px; }

.product-card .inquire-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-accent);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

/* ---------- Why us ---------- */
.why-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
}

.why-card {
  padding: 26px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: linear-gradient(145deg, var(--color-surface), var(--color-bg-alt));
}

.why-card .icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: rgba(79, 209, 197, 0.12);
  color: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  margin-bottom: 16px;
}

.why-card h3 { font-size: 16px; margin-bottom: 8px; }
.why-card p { font-size: 14px; color: var(--color-text-dim); margin: 0; }

/* ---------- Inquiry ---------- */
.inquiry-section {
  background: var(--color-bg-alt);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.inquiry-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 56px;
}

.inquiry-info h2 { margin-bottom: 16px; }
.inquiry-info p { color: var(--color-text-dim); margin-bottom: 28px; }

.contact-methods { display: grid; gap: 16px; }

.contact-method {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  transition: border-color 0.15s;
}

.contact-method:hover { border-color: var(--color-accent-dim); }

.contact-method .icon {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(79, 209, 197, 0.12);
  color: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 16px;
}

.contact-method .label { font-size: 13px; color: var(--color-text-dim); }
.contact-method .value { font-size: 15px; font-weight: 600; }

.form-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 32px;
}

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

.field { margin-bottom: 18px; }

.field label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text-dim);
  margin-bottom: 8px;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: 12px 14px;
  color: var(--color-text);
  font-family: inherit;
  font-size: 14px;
  transition: border-color 0.15s;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--color-accent);
}

.field textarea { resize: vertical; min-height: 110px; }

.submit-btn {
  width: 100%;
  background: var(--color-accent);
  color: #06201d;
  border: none;
  padding: 15px;
  border-radius: 10px;
  font-weight: 700;
  font-size: 15px;
  cursor: pointer;
  transition: background 0.15s;
}

.submit-btn:hover { background: #6fe0d5; }

.form-status {
  margin-top: 14px;
  font-size: 14px;
  display: none;
}
.form-status.success { color: var(--color-accent); display: block; }
.form-status.error { color: #ff8a8a; display: block; }

/* ---------- Footer ---------- */
.site-footer {
  padding-block: 48px;
  border-top: 1px solid var(--color-border);
}

.footer-grid {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}

.footer-grid .brand { margin-bottom: 6px; }
.footer-note { color: var(--color-text-dim); font-size: 13px; }

.footer-links { display: flex; gap: 24px; }
.footer-links a { color: var(--color-text-dim); font-size: 14px; }
.footer-links a:hover { color: var(--color-accent); }

/* ---------- WhatsApp floating button ---------- */
.float-whatsapp {
  position: fixed;
  inset-block-end: 24px;
  inset-inline-end: 24px;
  width: 56px;
  height: 56px;
  background: #25d366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
  z-index: 200;
  font-size: 26px;
  transition: transform 0.15s;
}
.float-whatsapp:hover { transform: scale(1.08); }

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .main-nav { display: none; }
  .nav-toggle { display: block; }
  .hero .container,
  .about-grid,
  .inquiry-grid { grid-template-columns: 1fr; }
  .hero-visual { order: -1; }
  .form-row { grid-template-columns: 1fr; }
  .hero-stats { grid-template-columns: repeat(3, 1fr); }
  section { padding-block: 64px; }
}

@media (max-width: 860px) {
  .main-nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    inset-inline: 0;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    padding: 20px 24px;
    gap: 18px;
  }
}

/* RTL readiness note:
   All spacing/alignment above uses logical properties
   (margin-inline, padding-inline, border-inline-start, inset-inline-end)
   so simply adding <html lang="ar" dir="rtl"> and an Arabic
   content file will mirror the layout correctly with no CSS changes. */