/* ==========================================================================
   CITADEL PROJIT LIMITED — "Digital Bastion" design system
   Dark-mode-first, fortress/blueprint motif, copper/amber accent.
   ========================================================================== */

:root {
  /* Graphite scale (base) */
  --graphite-950: #0a0c10;
  --graphite-900: #0e1116;
  --graphite-850: #12161d;
  --graphite-800: #171c24;
  --graphite-700: #1f2530;
  --graphite-600: #2b3340;
  --graphite-500: #3c4657;

  /* Steel (muted text / lines) */
  --steel-400: #8b96a8;
  --steel-300: #a9b3c2;
  --steel-200: #cbd3dd;

  /* Paper (light sections) */
  --paper-50: #f7f8fa;
  --paper-100: #eef1f4;
  --white: #ffffff;

  /* Copper / amber accent */
  --copper-800: #8f3f18;
  --copper-700: #c45a20;
  --copper-600: #d76829;
  --copper-500: #e8762d;
  --copper-400: #f7943c;
  --amber-300: #ffba5c;
  --amber-200: #ffd39b;

  /* Status */
  --ok-500: #3fb37f;

  --font-head: "Manrope", "Segoe UI", Arial, sans-serif;
  --font-body: "Manrope", "Segoe UI", Arial, sans-serif;
  --font-mono: "JetBrains Mono", "Courier New", monospace;

  --radius-sm: 4px;
  --radius-md: 10px;
  --container: 1200px;

  --shadow-lift: 0 20px 50px -20px rgba(0, 0, 0, 0.55);
  --shadow-glow: 0 0 0 1px rgba(232, 118, 45, 0.25), 0 12px 40px -12px rgba(232, 118, 45, 0.35);
}

/* ---------- Reset ---------- */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--graphite-950);
  color: var(--paper-50);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4, h5 { font-family: var(--font-head); font-weight: 800; line-height: 1.15; margin: 0 0 .5em; letter-spacing: -0.01em; }
p { margin: 0 0 1em; color: var(--steel-300); }
button { font-family: inherit; }

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

section { position: relative; }

/* ---------- Blueprint grid texture ---------- */
.grid-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(139, 150, 168, 0.09) 1px, transparent 1px),
    linear-gradient(90deg, rgba(139, 150, 168, 0.09) 1px, transparent 1px);
  background-size: 44px 44px;
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 50% 0%, #000 40%, transparent 100%);
  mask-image: radial-gradient(ellipse 80% 70% at 50% 0%, #000 40%, transparent 100%);
}
.glow-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  pointer-events: none;
  opacity: 0.4;
}

/* ---------- Eyebrow / labels ---------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--copper-400);
  margin-bottom: 14px;
}
.eyebrow::before {
  content: "";
  width: 8px;
  height: 8px;
  background: var(--copper-500);
  clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 26px;
  font-weight: 700;
  font-size: 15px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.2s ease, background 0.2s ease, border-color 0.2s ease;
  clip-path: polygon(12px 0, 100% 0, 100% calc(100% - 12px), calc(100% - 12px) 100%, 0 100%, 0 12px);
}
.btn-primary {
  background: linear-gradient(135deg, var(--copper-500), var(--copper-700));
  color: var(--white);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: var(--shadow-glow); }
.btn-outline {
  background: transparent;
  border-color: var(--graphite-500);
  color: var(--paper-50);
}
.btn-outline:hover { border-color: var(--copper-500); color: var(--copper-400); transform: translateY(-2px); }
.btn-block { width: 100%; }
.btn-lg { padding: 16px 32px; font-size: 16px; }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 12, 16, 0.82);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--graphite-700);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 84px;
}
.brand { display: flex; align-items: center; }
.brand img { height: 34px; width: auto; }

.main-nav ul { display: flex; align-items: center; gap: 4px; }
.main-nav a {
  display: block;
  padding: 10px 16px;
  font-size: 14.5px;
  font-weight: 600;
  color: var(--steel-300);
  border-radius: var(--radius-sm);
  transition: color 0.15s ease, background 0.15s ease;
}
.main-nav a:hover { color: var(--paper-50); background: var(--graphite-800); }
.main-nav a.active { color: var(--amber-300); }
.header-cta { display: flex; align-items: center; gap: 18px; }
.header-cta .btn { padding: 10px 20px; font-size: 14px; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: transparent;
  border: none;
  padding: 8px;
  cursor: pointer;
}
.nav-toggle span { width: 24px; height: 2px; background: var(--paper-50); display: block; }

/* ---------- Hero ---------- */
.hero {
  padding: 96px 0 100px;
  overflow: hidden;
  background: var(--graphite-950);
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 56px;
  align-items: center;
  position: relative;
  z-index: 1;
}
.hero h1 {
  font-size: clamp(2.1rem, 4.2vw, 3.4rem);
  color: var(--paper-50);
}
.hero h1 .accent { color: var(--copper-400); }
.hero .lead { font-size: 18px; color: var(--steel-300); max-width: 54ch; margin-bottom: 32px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 36px; }
.hero-meta { display: flex; gap: 32px; flex-wrap: wrap; }
.hero-meta div { font-family: var(--font-mono); font-size: 12px; color: var(--steel-400); letter-spacing: 0.06em; }
.hero-meta strong { display: block; font-family: var(--font-head); font-size: 22px; color: var(--paper-50); font-weight: 800; }

/* Hero visual: bastion / blueprint panel */
.hero-visual {
  position: relative;
  border: 1px solid var(--graphite-600);
  background: linear-gradient(160deg, var(--graphite-850), var(--graphite-900));
  border-radius: var(--radius-md);
  padding: 30px;
  clip-path: polygon(24px 0, 100% 0, 100% calc(100% - 24px), calc(100% - 24px) 100%, 0 100%, 0 24px);
}
.hero-visual .panel-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--steel-400);
  letter-spacing: 0.08em;
  padding-bottom: 16px;
  margin-bottom: 18px;
  border-bottom: 1px dashed var(--graphite-600);
}
.panel-head .dots { display: flex; gap: 6px; }
.panel-head .dots span { width: 8px; height: 8px; border-radius: 50%; background: var(--graphite-600); }
.panel-head .dots span:nth-child(1) { background: var(--copper-500); }

.stack-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  margin-bottom: 10px;
  background: var(--graphite-800);
  border: 1px solid var(--graphite-700);
  border-left: 3px solid var(--copper-500);
  border-radius: 3px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--steel-200);
}
.stack-row .status { font-size: 11px; color: var(--ok-500); }
.stack-row .status::before { content: "● "; }

/* ---------- Sections ---------- */
.section { padding: 96px 0; }
.section-light { background: var(--paper-50); color: var(--graphite-950); }
.section-light p { color: #4a5567; }
.section-light h2, .section-light h3 { color: var(--graphite-950); }
.section-alt { background: var(--graphite-900); }

.section-head { max-width: 680px; margin: 0 auto 56px; text-align: center; }
.section-head.left { margin-left: 0; text-align: left; }
.section-head h2 { font-size: clamp(1.7rem, 3vw, 2.4rem); }
.section-head p { font-size: 16.5px; }

/* ---------- Cards / grids ---------- */
.grid { display: grid; gap: 26px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: var(--graphite-850);
  border: 1px solid var(--graphite-700);
  padding: 32px 28px;
  position: relative;
  clip-path: polygon(18px 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%, 0 18px);
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}
.card:hover { transform: translateY(-4px); border-color: var(--copper-600); box-shadow: var(--shadow-lift); }
.section-light .card { background: var(--white); border-color: var(--paper-100); }

.card-icon {
  width: 54px;
  height: 54px;
  display: grid;
  place-items: center;
  background: var(--graphite-800);
  border: 1px solid var(--graphite-600);
  clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
  margin-bottom: 20px;
  color: var(--copper-400);
  font-size: 22px;
}
.card h3 { font-size: 19px; margin-bottom: 10px; }
.card p { font-size: 14.5px; margin-bottom: 0; }
.card .index {
  position: absolute;
  top: 18px; right: 22px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--steel-400);
}

/* Service block (services page, detailed) */
.service-block {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 40px;
  padding: 46px 0;
  border-bottom: 1px solid var(--graphite-700);
}
.service-block:last-child { border-bottom: none; }
.service-num {
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--copper-400);
  letter-spacing: 0.05em;
}
.service-num .big { display: block; font-family: var(--font-head); font-size: 44px; color: var(--graphite-700); font-weight: 800; line-height: 1; margin-top: 8px; }
.service-content h3 { font-size: 24px; margin-bottom: 12px; color: var(--paper-50); }
.service-content p { font-size: 15.5px; max-width: 68ch; }
.tag-row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.tag {
  font-family: var(--font-mono);
  font-size: 12px;
  padding: 6px 12px;
  border: 1px solid var(--graphite-600);
  color: var(--steel-300);
  border-radius: 3px;
  background: var(--graphite-850);
}

/* ---------- Rampart divider (crenellated edge) ---------- */
.rampart-top {
  height: 14px;
  width: 100%;
  background: linear-gradient(90deg, var(--copper-700), var(--copper-500) 50%, var(--amber-300));
  clip-path: polygon(
    0% 100%, 0% 0%, 6% 0%, 6% 60%, 12% 60%, 12% 0%,
    18% 0%, 18% 60%, 24% 60%, 24% 0%,
    30% 0%, 30% 60%, 36% 60%, 36% 0%,
    42% 0%, 42% 60%, 48% 60%, 48% 0%,
    52% 0%, 52% 60%, 58% 60%, 58% 0%,
    64% 0%, 64% 60%, 70% 60%, 70% 0%,
    76% 0%, 76% 60%, 82% 60%, 82% 0%,
    88% 0%, 88% 60%, 94% 60%, 94% 0%,
    100% 0%, 100% 100%
  );
}

/* ---------- Stats strip ---------- */
.stats-strip {
  background: var(--graphite-900);
  border-top: 1px solid var(--graphite-700);
  border-bottom: 1px solid var(--graphite-700);
  padding: 56px 0;
}
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; text-align: center; }
.stat-num {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  background: linear-gradient(135deg, var(--amber-300), var(--copper-600));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.stat-label { font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--steel-400); margin-top: 6px; }

/* ---------- CTA band ---------- */
.cta-band {
  background: linear-gradient(135deg, var(--graphite-900), var(--graphite-850));
  border: 1px solid var(--graphite-700);
  padding: 60px 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
  clip-path: polygon(28px 0, 100% 0, 100% calc(100% - 28px), calc(100% - 28px) 100%, 0 100%, 0 28px);
}
.cta-band h2 { font-size: clamp(1.5rem, 2.6vw, 2rem); margin-bottom: 8px; }
.cta-band p { margin: 0; max-width: 46ch; }
.cta-actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* ---------- Values / About ---------- */
.value-card {
  padding: 24px 24px 24px 22px;
  border-left: 3px solid var(--copper-500);
  background: var(--graphite-850);
  border-top: 1px solid var(--graphite-700);
  border-right: 1px solid var(--graphite-700);
  border-bottom: 1px solid var(--graphite-700);
}
.value-card h3 { font-size: 17px; margin-bottom: 8px; color: var(--paper-50); }
.value-card p { font-size: 14.5px; margin-bottom: 0; }

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}
.mission-panel {
  background: var(--graphite-850);
  border: 1px solid var(--graphite-700);
  padding: 34px;
  clip-path: polygon(18px 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%, 0 18px);
}
.mission-panel + .mission-panel { margin-top: 24px; }
.mission-panel .eyebrow { margin-bottom: 10px; }
.mission-panel p:last-child { margin-bottom: 0; }

/* ---------- Contact ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 56px; }
.contact-item { display: flex; gap: 16px; padding: 20px 0; border-bottom: 1px solid var(--graphite-700); }
.contact-item:last-child { border-bottom: none; }
.contact-item .ic {
  width: 44px; height: 44px; flex: none;
  display: grid; place-items: center;
  background: var(--graphite-800);
  border: 1px solid var(--graphite-600);
  clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
  color: var(--copper-400);
}
.contact-item h4 { margin: 0 0 4px; font-size: 15px; color: var(--paper-50); }
.contact-item p { margin: 0; font-size: 14.5px; }

.map-frame {
  border: 1px solid var(--graphite-700);
  overflow: hidden;
  margin-top: 30px;
  filter: grayscale(0.3) contrast(1.05);
}
.map-frame iframe { width: 100%; height: 280px; border: 0; display: block; }

.form-panel {
  background: var(--graphite-850);
  border: 1px solid var(--graphite-700);
  padding: 36px;
  clip-path: polygon(20px 0, 100% 0, 100% calc(100% - 20px), calc(100% - 20px) 100%, 0 100%, 0 20px);
}
.form-row { margin-bottom: 20px; }
.form-row label {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--steel-400);
  margin-bottom: 8px;
}
.form-row input, .form-row textarea, .form-row select {
  width: 100%;
  padding: 13px 14px;
  background: var(--graphite-900);
  border: 1px solid var(--graphite-600);
  border-radius: 3px;
  color: var(--paper-50);
  font-family: var(--font-body);
  font-size: 14.5px;
  transition: border-color 0.15s ease;
}
.form-row input:focus, .form-row textarea:focus, .form-row select:focus {
  outline: none;
  border-color: var(--copper-500);
}
.form-row textarea { resize: vertical; min-height: 130px; }
.form-note { font-size: 12.5px; color: var(--steel-400); margin-top: 14px; }

/* ---------- Footer ---------- */
.footer { background: var(--graphite-950); border-top: 1px solid var(--graphite-800); padding-top: 64px; }
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 48px;
}
.footer-brand img { height: 30px; margin-bottom: 16px; }
.footer-brand p { font-size: 14px; max-width: 34ch; }
.footer h5 {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--steel-400);
  margin-bottom: 18px;
}
.footer ul li { margin-bottom: 11px; }
.footer ul a { font-size: 14.5px; color: var(--steel-300); transition: color 0.15s ease; }
.footer ul a:hover { color: var(--amber-300); }
.footer-bottom {
  border-top: 1px solid var(--graphite-800);
  padding: 22px 0 30px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
  color: var(--steel-400);
}
.footer-bottom a { color: var(--steel-400); }
.footer-bottom a:hover { color: var(--amber-300); }

/* ---------- Page hero (inner pages) ---------- */
.page-hero {
  padding: 66px 0 60px;
  background: var(--graphite-950);
  border-bottom: 1px solid var(--graphite-800);
  position: relative;
}
.page-hero h1 { font-size: clamp(1.9rem, 3.6vw, 2.7rem); }
.breadcrumb {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--steel-400);
  margin-bottom: 18px;
  letter-spacing: 0.05em;
}
.breadcrumb a { color: var(--steel-400); }
.breadcrumb a:hover { color: var(--copper-400); }
.breadcrumb .sep { margin: 0 6px; color: var(--graphite-600); }

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
  .hero-grid { grid-template-columns: 1fr; }
  .split { grid-template-columns: 1fr; gap: 32px; }
  .contact-grid { grid-template-columns: 1fr; }
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 32px; }
  .service-block { grid-template-columns: 1fr; gap: 16px; }
}

@media (max-width: 760px) {
  .main-nav, .header-cta .btn-outline { display: none; }
  .nav-toggle { display: flex; }
  .site-header.nav-open .main-nav {
    display: flex;
    position: absolute;
    top: 84px; left: 0; right: 0;
    background: var(--graphite-900);
    border-bottom: 1px solid var(--graphite-700);
    flex-direction: column;
    padding: 12px;
  }
  .site-header.nav-open .main-nav ul { flex-direction: column; width: 100%; }
  .site-header.nav-open .main-nav a { padding: 14px 16px; }
  .grid-3, .grid-4, .grid-2 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .cta-band { flex-direction: column; align-items: flex-start; padding: 40px 28px; }
  .section { padding: 64px 0; }
  .hero { padding: 56px 0 64px; }
}