/* =============================
   Farzikhert Security Systems
   Global Stylesheet
   Established, trustworthy aesthetic: deep navy, charcoal, off-white, gold accent
   ============================= */
:root {
  --clr-bg: #0b1119; /* deep navy */
  --clr-bg-alt: #121b27; /* slightly lighter */
  --clr-surface: #182430; /* panel */
  --clr-border: #263646;
  --clr-text: #d9e2ec;
  --clr-text-soft: #9fb3c8;
  --clr-accent: #d4a84e; /* muted gold */
  --clr-accent-hover: #e3b85d;
  --clr-danger: #d9534f;
  --font-serif: 'Playfair Display', Georgia, serif;
  --font-sans: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --shadow-sm: 0 2px 4px rgba(0,0,0,0.25);
  --shadow-md: 0 4px 18px -4px rgba(0,0,0,0.4);
  --container: 1180px;
  --transition: .25s cubic-bezier(.4,0,.2,1);
  --gradient-hero: radial-gradient(circle at 40% 30%, rgba(212,168,78,0.15), transparent 60%), linear-gradient(135deg,#0b1119,#121b27 70%);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin:0;
  font-family: var(--font-sans);
  background: var(--clr-bg);
  color: var(--clr-text);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display:block; }
a { color: var(--clr-accent); text-decoration:none; }
a:hover, a:focus { color: var(--clr-accent-hover); }

h1,h2,h3,h4 { font-family: var(--font-serif); font-weight:700; line-height:1.2; margin:0 0 .6em; }
.h3 { font-size:1.55rem; }

p { margin:0 0 1.1em; }
.lead { font-size:1.15rem; color: var(--clr-text-soft); }
.small { font-size:.8rem; }

ul { margin:0 0 1.2em 1.1em; padding:0; }
ul.plain { list-style:none; margin:0; padding:0; }
.check-list { list-style:none; margin:0 0 1.5em; padding:0; }
.check-list li { position:relative; padding-left:1.4em; margin:.4em 0; }
.check-list li:before { content:""; position:absolute; left:0; top:.4em; width:.8em; height:.8em; border:2px solid var(--clr-accent); border-radius:2px; box-shadow:0 0 0 2px var(--clr-bg); background:linear-gradient(135deg,var(--clr-accent) 0%,var(--clr-accent-hover) 100%); }
.check-list.compact li { margin:.2em 0; }

.metrics-inline { list-style:none; display:flex; flex-wrap:wrap; gap:1.5rem; padding:0; margin:.5rem 0 1.2rem; }
.metrics-inline li { background:var(--clr-surface); padding:.6rem .9rem; border-radius:var(--radius-sm); font-size:.9rem; border:1px solid var(--clr-border); }

.container { width:100%; max-width:var(--container); margin:0 auto; padding:0 1.25rem; }
.container.narrow { max-width:820px; }

.flex { display:flex; }
.between { justify-content:space-between; }
.center { text-align:center; }
.center-v { align-items:center; }
.wrap { flex-wrap:wrap; }
.mt-lg { margin-top:2.5rem; }

.grid { display:grid; gap:2rem; }
.cols-4 { grid-template-columns:repeat(auto-fit,minmax(180px,1fr)); }

.section-pad { padding:4.5rem 0; }
.hero { padding:6rem 0 4rem; background:var(--gradient-hero), var(--clr-bg-alt); position:relative; overflow:hidden; }
.hero.sub { padding:4.5rem 0 2.5rem; }
.hero-home h1 { font-size:2.6rem; }
.hero .actions { display:flex; gap:1rem; margin:2rem 0 1rem; }

.trust-badges { list-style:none; display:flex; flex-wrap:wrap; gap:.75rem 1rem; margin:2rem 0 0; padding:0; font-size:.75rem; text-transform:uppercase; letter-spacing:.07em; color:var(--clr-text-soft); }
.trust-badges li { background:var(--clr-surface); padding:.45rem .7rem; border-radius:var(--radius-sm); border:1px solid var(--clr-border); }

.feature-grid { display:grid; gap:1.5rem; grid-template-columns:repeat(auto-fit,minmax(240px,1fr)); margin-top:2rem; }
.card { background:var(--clr-surface); padding:1.25rem 1.25rem 1.1rem; border-radius:var(--radius-md); border:1px solid var(--clr-border); position:relative; box-shadow:var(--shadow-sm); }
.card h3 { font-size:1.05rem; margin-top:0; }
.card:hover { border-color:var(--clr-accent); box-shadow:0 0 0 1px var(--clr-accent), var(--shadow-sm); }

.case-preview .cases-grid { display:grid; gap:1.5rem; grid-template-columns:repeat(auto-fit,minmax(240px,1fr)); }
.case-card { background:linear-gradient(145deg,var(--clr-surface),#1f2f3c); border:1px solid var(--clr-border); border-radius:var(--radius-md); padding:1.2rem 1.2rem 1rem; position:relative; }
.case-card .metric { font-size:.85rem; color:var(--clr-accent); font-weight:600; margin:.2rem 0 .6rem; }
.case-card .metric span { font-size:1.25rem; display:block; line-height:1; }
.case-card .more { font-size:.75rem; letter-spacing:.05em; text-transform:uppercase; }
.case-card:hover { border-color:var(--clr-accent); }

.alt-bg { background:var(--clr-bg-alt); }

/* Header */
.site-header { position:sticky; top:0; background:rgba(11,17,25,.88); backdrop-filter: blur(8px); border-bottom:1px solid var(--clr-border); z-index:50; }
.brand { display:flex; gap:.6rem; align-items:center; font-weight:600; color:var(--clr-text); font-size:1rem; letter-spacing:.03em; }
.brand-text { font-family:var(--font-serif); font-weight:700; font-size:1.1rem; }
.logo { width:42px; height:auto; }
.logo.small { width:54px; }

.main-nav { position:relative; }
.main-nav ul { list-style:none; display:flex; gap:1rem; margin:0; padding:0; }
.main-nav a { padding:.75rem .9rem; border-radius:var(--radius-sm); font-size:.9rem; font-weight:500; color:var(--clr-text-soft); display:inline-block; }
.main-nav a:hover, .main-nav a:focus { color:var(--clr-text); background:var(--clr-surface); }
.main-nav a.active { color:var(--clr-accent); }
.cta-link { background:var(--clr-accent); color:#111; font-weight:600 !important; }
.cta-link:hover { background:var(--clr-accent-hover); color:#111; }

.nav-toggle { display:none; background:none; border:1px solid var(--clr-border); padding:.55rem .6rem; border-radius:var(--radius-sm); cursor:pointer; position:relative; }
.nav-toggle .bar { display:block; width:22px; height:2px; background:var(--clr-text); margin:4px 0; transition:var(--transition); }
.nav-toggle[aria-expanded="true"] .bar:nth-child(1){ transform:translateY(6px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .bar:nth-child(2){ opacity:0; }
.nav-toggle[aria-expanded="true"] .bar:nth-child(3){ transform:translateY(-6px) rotate(-45deg); }

/* Footer */
.site-footer { background:#0a0f15; padding:3.5rem 0 2.5rem; font-size:.85rem; margin-top:4rem; border-top:1px solid var(--clr-border); }
.site-footer .footer-top { margin-bottom:2.5rem; }
.footer-head { font-size:.8rem; letter-spacing:.15em; text-transform:uppercase; margin-bottom:1rem; color:var(--clr-text-soft); }
.tagline { color:var(--clr-text-soft); font-size:.75rem; }
.footer-bottom { border-top:1px solid var(--clr-border); padding-top:1.2rem; margin-top:1.2rem; }

/* Components */
.btn { --btn-bg:var(--clr-surface); --btn-color:var(--clr-text); display:inline-flex; align-items:center; justify-content:center; gap:.4rem; font-weight:600; padding:.85rem 1.3rem; border-radius:var(--radius-sm); border:1px solid var(--clr-border); background:var(--btn-bg); color:var(--btn-color); font-size:.85rem; letter-spacing:.03em; position:relative; overflow:hidden; cursor:pointer; transition:var(--transition); text-decoration:none; }
.btn:hover { border-color:var(--clr-accent); color:var(--clr-text); }
.btn.primary { --btn-bg:var(--clr-accent); --btn-color:#111; border-color:var(--clr-accent); }
.btn.primary:hover { background:var(--clr-accent-hover); }
.btn.outline { background:transparent; border-color:var(--clr-accent); color:var(--clr-accent); }
.btn.outline:hover { background:var(--clr-accent); color:#111; }
.btn.full { width:100%; }

.cta-band { background:linear-gradient(90deg,#182430,#0f1822); padding:2rem 0; border-top:1px solid var(--clr-border); border-bottom:1px solid var(--clr-border); }
.cta-band .btn { margin-top:.75rem; }

.service-block { background:var(--clr-surface); padding:1.8rem 1.5rem 1.4rem; border:1px solid var(--clr-border); border-radius:var(--radius-md); margin:0 0 2.2rem; box-shadow:var(--shadow-sm); }
.service-block h2 { font-size:1.35rem; }
.service-block p { color:var(--clr-text-soft); }

.case-detail { background:var(--clr-surface); padding:2rem 1.6rem 1.4rem; border:1px solid var(--clr-border); border-radius:var(--radius-md); margin:0 0 3rem; }
.case-detail h2 { font-size:1.4rem; }
.case-detail p { color:var(--clr-text-soft); }

.band-stats .stats-grid { display:grid; gap:1.5rem; grid-template-columns:repeat(auto-fit,minmax(140px,1fr)); }
.stat { text-align:center; padding:1.2rem 1rem 1rem; background:var(--clr-surface); border:1px solid var(--clr-border); border-radius:var(--radius-md); }
.stat .num { display:block; font-size:1.8rem; font-family:var(--font-serif); color:var(--clr-accent); line-height:1; margin-bottom:.25rem; }
.stat .label { font-size:.7rem; text-transform:uppercase; letter-spacing:.12em; color:var(--clr-text-soft); }

.timeline-list { list-style:none; margin:1.5rem 0 0; padding:0; position:relative; }
.timeline-list:before { content:""; position:absolute; left:10px; top:0; bottom:0; width:2px; background:linear-gradient(var(--clr-accent),var(--clr-accent-hover)); opacity:.6; }
.timeline-list li { position:relative; padding:0 0 1.5rem 2.2rem; }
.timeline-list li:before { content:""; position:absolute; left:2px; top:.35rem; width:16px; height:16px; background:var(--clr-bg); border:2px solid var(--clr-accent); border-radius:50%; box-shadow:0 0 0 4px var(--clr-bg); }
.timeline-list .year { font-weight:600; font-size:.8rem; letter-spacing:.08em; text-transform:uppercase; color:var(--clr-accent); display:block; margin-bottom:.25rem; }
.timeline-list .event { color:var(--clr-text-soft); font-size:.9rem; }

.contact-grid { display:grid; gap:2.5rem; grid-template-columns:repeat(auto-fit,minmax(300px,1fr)); align-items:start; }
.field { margin:0 0 1.1rem; }
.field label { display:block; font-size:.75rem; text-transform:uppercase; letter-spacing:.12em; font-weight:600; margin:0 0 .5rem; color:var(--clr-text-soft); }
.field input, .field textarea { width:100%; background:var(--clr-surface); border:1px solid var(--clr-border); padding:.75rem .8rem; border-radius:var(--radius-sm); color:var(--clr-text); font-family:var(--font-sans); font-size:.9rem; }
.field input:focus, .field textarea:focus { outline:2px solid var(--clr-accent); outline-offset:2px; }
.checkbox { display:flex; gap:.5rem; font-size:.75rem; align-items:flex-start; }
.checkbox input { margin-top:.15rem; }
.form-status { font-size:.8rem; margin-top:.75rem; min-height:1.2em; }

.testimonial { background:var(--clr-bg-alt); }
.testimonial-list { position:relative; }
.testimonial-list .quote { display:none; margin:0; }
.testimonial-list .quote.current { display:block; }
.testimonial-list blockquote { margin:0 0 .8rem; font-family:var(--font-serif); font-size:1.15rem; line-height:1.4; color:var(--clr-text); }
.testimonial-list figcaption { font-size:.75rem; letter-spacing:.08em; text-transform:uppercase; color:var(--clr-text-soft); }
.carousel-controls { display:flex; gap:.75rem; position:absolute; top:0; right:0; }
.carousel-controls button { background:var(--clr-surface); color:var(--clr-text); border:1px solid var(--clr-border); width:34px; height:34px; border-radius:50%; cursor:pointer; font-size:1.1rem; line-height:1; display:flex; align-items:center; justify-content:center; }
.carousel-controls button:hover { border-color:var(--clr-accent); color:var(--clr-accent); }

/* Utilities */
.skip-link { position:absolute; left:-999px; top:auto; width:1px; height:1px; overflow:hidden; }
.skip-link:focus { left:0; top:0; width:auto; height:auto; background:var(--clr-accent); color:#111; padding:.6rem 1rem; z-index:100; }
.sr-only { position:absolute; width:1px; height:1px; padding:0; margin:-1px; overflow:hidden; clip:rect(0,0,0,0); border:0; }

/* Responsive */
@media (max-width: 880px) {
  .hero-home h1 { font-size:2.2rem; }
}
@media (max-width: 760px) {
  .main-nav ul { position:absolute; right:0; top:100%; background:var(--clr-bg-alt); flex-direction:column; align-items:stretch; min-width:220px; padding:.75rem; border:1px solid var(--clr-border); border-radius:var(--radius-md); box-shadow:var(--shadow-md); display:none; }
  .main-nav ul.open { display:flex; }
  .nav-toggle { display:block; }
  .main-nav a { width:100%; }
}
@media (max-width:600px){
  .section-pad { padding:3.5rem 0; }
  .hero { padding:4.5rem 0 3rem; }
  .hero .actions { flex-direction:column; align-items:stretch; }
}