/* ==========================================================================
   VisionSync IT — Design System
   Signature: "system status" motif — monospace status pills with a live
   dot, echoing the tickets/logs/uptime vocabulary of the platforms we sell.
   RTL/LTR handled entirely with CSS logical properties — one rule set,
   no mirrored duplicates, flips automatically with [dir].
   ========================================================================== */

:root {
  /* ---- Color tokens ---- */
  --ink:        #12181C;   /* near-black slate, primary text / dark sections */
  --ink-soft:   #2B343A;
  --paper:      #F6F4EE;   /* warm ivory, light sections */
  --paper-2:    #EDE9DE;   /* recessed card surface on paper */
  --steel:      #2F5D82;   /* primary accent — action, links */
  --steel-dim:  #24455F;
  --copper:     #B8722E;   /* secondary accent — status / highlight */
  --teal:       #1F5C56;   /* tertiary accent — success / tags */
  --line:       rgba(18, 24, 28, 0.12);
  --line-dark:  rgba(246, 244, 238, 0.14);
  --danger:     #B3432F;

  /* ---- Type ---- */
  --font-display: 'Space Grotesk', 'Tajawal', sans-serif;
  --font-body:    'Tajawal', 'Space Grotesk', sans-serif;
  --font-mono:    'IBM Plex Mono', ui-monospace, SFMono-Regular, Menlo, monospace;

  /* ---- Scale ---- */
  --radius-sm: 6px;
  --radius:    10px;
  --radius-lg: 18px;
  --container: 1180px;
  --trans: 200ms cubic-bezier(0.2, 0.6, 0.2, 1);

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 1rem;
  --space-4: 1.5rem;
  --space-5: 2.5rem;
  --space-6: 4rem;
  --space-7: 6rem;
}

/* ---- Reset ---- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}

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

/* Text-selection lockdown, per project spec — inputs/textareas stay selectable
   or the contact form becomes unusable. */
body {
  -webkit-user-select: none;
  user-select: none;
}
input, textarea, [contenteditable="true"] {
  -webkit-user-select: text;
  user-select: text;
}

img { max-width: 100%; display: block; pointer-events: none; user-select: none; -webkit-user-drag: none; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }
button { font-family: inherit; cursor: pointer; }
input, textarea, select { font-family: inherit; font-size: 1rem; }

/* Visible focus ring everywhere — accessibility floor */
:focus-visible {
  outline: 2px solid var(--steel);
  outline-offset: 3px;
  border-radius: 3px;
}

.skip-link {
  position: fixed;
  inset-inline-start: -9999px;
  top: 0;
  background: var(--ink);
  color: var(--paper);
  padding: 12px 20px;
  z-index: 1000;
  border-radius: 0 0 var(--radius-sm) 0;
}
.skip-link:focus {
  inset-inline-start: 0;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.15;
  margin: 0;
  letter-spacing: -0.01em;
}
[dir="rtl"] h1, [dir="rtl"] h2, [dir="rtl"] h3, [dir="rtl"] h4 {
  font-family: var(--font-body);
  letter-spacing: 0;
}

h1 { font-size: clamp(2.1rem, 1.4rem + 3vw, 3.6rem); }
h2 { font-size: clamp(1.6rem, 1.2rem + 1.6vw, 2.5rem); }
h3 { font-size: clamp(1.15rem, 1rem + 0.6vw, 1.4rem); }
p  { margin: 0 0 1rem; color: var(--ink-soft); }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--paper);
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  margin-bottom: var(--space-3);
}
[dir="rtl"] .eyebrow { letter-spacing: 0; }
.eyebrow::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--copper);
  flex: none;
}

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--space-4);
}

.padding-section { padding-block: var(--space-7); }
.bg-ink { background: var(--ink); color: var(--paper); }
.bg-ink p { color: rgba(246, 244, 238, 0.72); }
.bg-paper-2 { background: var(--paper-2); }

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  padding: 0.85em 1.6em;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  transition: transform var(--trans), background var(--trans), border-color var(--trans), color var(--trans);
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--ink); color: var(--paper); }
.btn-primary:hover { background: var(--steel-dim); }
.bg-ink .btn-primary { background: var(--paper); color: var(--ink); }
.bg-ink .btn-primary:hover { background: var(--copper); color: var(--paper); }

.btn-secondary { background: transparent; color: var(--ink); border-color: var(--line); }
.btn-secondary:hover { border-color: var(--ink); }
.bg-ink .btn-secondary { color: var(--paper); border-color: var(--line-dark); }
.bg-ink .btn-secondary:hover { border-color: var(--paper); }

.btn-outline-sm { padding: 0.5em 1em; font-size: 0.82rem; border: 1px solid var(--line); border-radius: var(--radius-sm); background: transparent; }

/* ---- Status pill (signature element) ---- */
.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.55em;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  padding: 0.4em 0.8em;
  border: 1px solid var(--line-dark);
  border-radius: 100px;
  color: rgba(246, 244, 238, 0.85);
}
.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #4CA97A;
  box-shadow: 0 0 0 3px rgba(76, 169, 122, 0.18);
  flex: none;
}

/* ---- Header ---- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(246, 244, 238, 0.86);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding-block: 0.9rem;
}
.logo {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 0.55em;
}
.logo img { height: 28px; width: auto; }
.logo span { color: var(--steel); }

.main-nav ul { display: flex; align-items: center; gap: var(--space-5); }
.main-nav a {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--ink-soft);
  position: relative;
  padding-block: 0.3em;
}
.main-nav a::after {
  content: '';
  position: absolute;
  inset-inline-start: 0;
  bottom: -2px;
  height: 2px;
  width: 0;
  background: var(--copper);
  transition: width var(--trans);
}
.main-nav a:hover, .main-nav a.active { color: var(--ink); }
.main-nav a:hover::after, .main-nav a.active::after { width: 100%; }

.nav-actions { display: flex; align-items: center; gap: var(--space-3); }

.hamburger { display: none; }

/* ---- Hero ---- */
.hero-section {
  background: var(--ink);
  color: var(--paper);
  padding-block: var(--space-7) var(--space-6);
  position: relative;
  overflow: clip;
}
.hero-container { max-width: 780px; }
.hero-content p { font-size: 1.08rem; max-width: 620px; }
.hero-buttons { display: flex; gap: var(--space-3); flex-wrap: wrap; margin-block-start: var(--space-4); }
.hero-status-strip {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
  margin-block-start: var(--space-6);
  padding-block-start: var(--space-4);
  border-block-start: 1px solid var(--line-dark);
}

/* ---- Section title ---- */
.section-title { max-width: 640px; margin-block-end: var(--space-5); }
.section-title.center { margin-inline: auto; text-align: center; }

/* ---- Grids ---- */
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-5); }
.grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-4); }
.grid4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-4); }
.align-center { align-items: center; }

/* ---- System / value / service cards ---- */
.system-card, .value-card, .service-box, .service-detail-card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: var(--space-4);
  transition: border-color var(--trans), transform var(--trans);
}
.system-card:hover, .service-detail-card:hover { border-color: var(--steel); transform: translateY(-3px); }

.system-tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--teal);
  border: 1px solid rgba(31, 92, 86, 0.3);
  border-radius: 100px;
  padding: 0.3em 0.75em;
  display: inline-block;
  margin-block-end: var(--space-3);
}
.card-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
  font-weight: 600;
  font-size: 0.88rem;
  color: var(--steel);
  margin-block-start: var(--space-3);
}
.card-link .arrow { transition: transform var(--trans); }
[dir="ltr"] .card-link:hover .arrow { transform: translateX(4px); }
[dir="rtl"] .card-link:hover .arrow { transform: translateX(-4px); }

/* ---- Demo video block ---- */
.demo-frame {
  aspect-ratio: 16 / 10;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--paper-2);
  display: grid;
  place-items: center;
  margin-block-start: var(--space-3);
  overflow: hidden;
}
.demo-frame video, .demo-frame iframe { width: 100%; height: 100%; border: 0; }
.demo-placeholder {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--ink-soft);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.6em;
}
.demo-play-btn {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--ink);
  color: var(--paper);
  display: grid;
  place-items: center;
  border: none;
}

/* ---- Project detail article ---- */
.project-item-card {
  border-block-start: 1px solid var(--line);
  padding-block-start: var(--space-6);
}
.project-item-card:first-child { border-block-start: none; padding-block-start: 0; }
.project-header { margin-block-end: var(--space-3); }
.project-body { display: grid; grid-template-columns: 1.3fr 1fr; gap: var(--space-5); align-items: start; }
.badge {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--copper);
  border: 1px solid rgba(184, 114, 46, 0.35);
  border-radius: 100px;
  padding: 0.3em 0.75em;
  display: inline-block;
  margin-block-end: var(--space-2);
}
.styled-list li {
  position: relative;
  padding-inline-start: 1.3em;
  margin-block-end: 0.6em;
  color: var(--ink-soft);
}
.styled-list li::before {
  content: '';
  position: absolute;
  inset-inline-start: 0;
  top: 0.55em;
  width: 6px;
  height: 6px;
  border-radius: 1px;
  background: var(--steel);
}

/* ---- Contact ---- */
.contact-detail-item { margin-block-end: var(--space-4); }
.contact-detail-item strong {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink-soft);
  display: block;
  margin-block-end: 0.3em;
}
[dir="rtl"] .contact-detail-item strong { letter-spacing: 0; }

.contact-form-container { padding: var(--space-4); border-radius: var(--radius-lg); }
.form-group { margin-block-end: var(--space-3); }
.form-group label { display: block; font-size: 0.85rem; font-weight: 600; margin-block-end: 0.4em; }
.form-control {
  width: 100%;
  padding: 0.8em 1em;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--paper);
  color: var(--ink);
  transition: border-color var(--trans);
}
.form-control:focus { border-color: var(--steel); }
textarea.form-control { resize: vertical; min-height: 120px; }
.w-100 { width: 100%; justify-content: center; }

.form-message {
  display: none;
  padding: 0.9em 1.1em;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  margin-block-end: var(--space-3);
}
.form-message.success { display: block; background: rgba(31, 92, 86, 0.12); color: var(--teal); }
.form-message.error   { display: block; background: rgba(179, 67, 47, 0.1); color: var(--danger); }

/* ---- Footer ---- */
.site-footer { background: var(--ink); color: var(--paper); }
.footer-container { padding-block: var(--space-6) var(--space-4); }
.foot-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: var(--space-4); }
.footer-col h3 { font-family: var(--font-mono); }
.footer-col h4, .foot-head {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: rgba(246, 244, 238, 0.55);
  margin-block-end: var(--space-3);
}
[dir="rtl"] .foot-head { letter-spacing: 0; }
.footer-col p, .foot-brand-desc { color: rgba(246, 244, 238, 0.68); font-size: 0.92rem; }
.foot-links li { margin-block-end: 0.6em; }
.foot-link { color: rgba(246, 244, 238, 0.78); font-size: 0.92rem; transition: color var(--trans); }
.foot-link:hover { color: var(--paper); }
.footer-bottom {
  border-block-start: 1px solid var(--line-dark);
  padding-block: var(--space-3);
  font-size: 0.82rem;
  color: rgba(246, 244, 238, 0.5);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5em;
}

/* ---- Utility ---- */
.mt-3 { margin-block-start: var(--space-3); }
.mt-4 { margin-block-start: var(--space-4); }
.mb-3 { margin-block-end: var(--space-3); }
.mb-5 { margin-block-end: var(--space-6); }
.p-4 { padding: var(--space-4); }
.rounded { border-radius: var(--radius-lg); }
.text-center { text-align: center; }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

/* ---- Responsive ---- */
@media (max-width: 960px) {
  .grid2, .grid3, .grid4 { grid-template-columns: 1fr; }
  .project-body { grid-template-columns: 1fr; }
  .foot-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 760px) {
  .main-nav { position: fixed; inset: 0; background: var(--ink); color: var(--paper);
    display: flex; flex-direction: column; justify-content: center; align-items: center;
    transform: translateY(-100%); transition: transform var(--trans); z-index: 90; }
  .main-nav.is-open { transform: translateY(0); }
  .main-nav ul { flex-direction: column; gap: var(--space-4); }
  .main-nav a { font-size: 1.3rem; color: var(--paper); }
  .hamburger {
    display: flex; flex-direction: column; gap: 5px; background: none; border: none; z-index: 91; padding: 6px;
  }
  .hamburger span { width: 22px; height: 2px; background: var(--ink); display: block; }
  .foot-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
}