/* =========================================================
   Mangold Security — static site
   Aesthetic: dark editorial cybersec. Sharp geometry, hairline
   rules, monospace metadata, one signature red.
   ========================================================= */

:root {
  --bg:            #0a0a0b;
  --bg-elev:       #111113;
  --ink:           #eceae4;
  --ink-dim:       #9a958c;
  --ink-faint:     #4a463f;
  --rule:          #1f1e1b;
  --rule-strong:   #2b2a26;
  --red:           #c8102e;
  --red-deep:      #6b0f0f;
  --red-glow:      rgba(200, 16, 46, 0.15);
  --cream:         #f3efe6;

  --font-display:  "Fraunces", "Cormorant Garamond", Georgia, serif;
  --font-body:     "Inter Tight", "Inter", -apple-system, system-ui, sans-serif;
  --font-mono:     "JetBrains Mono", ui-monospace, Menlo, Consolas, monospace;

  --maxw:          1280px;
  --gutter:        clamp(1.25rem, 3vw, 2.5rem);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  font-feature-settings: "ss01", "cv11";
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}

/* film-grain overlay */
body::before {
  content: "";
  position: fixed; inset: 0;
  pointer-events: none;
  z-index: 1000;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  mix-blend-mode: overlay;
}

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

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

::selection { background: var(--red); color: var(--cream); }

/* ---------- layout primitives ---------- */
.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding-inline: var(--gutter);
}

.rule { border: 0; border-top: 1px solid var(--rule); margin: 0; }
.rule-strong { border-top-color: var(--rule-strong); }

/* ---------- monospace metadata line ---------- */
.meta {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-dim);
}

.meta .dot { color: var(--red); }

/* ---------- top bar ---------- */
.topbar {
  position: sticky; top: 0; z-index: 50;
  background: rgba(10, 10, 11, 0.82);
  backdrop-filter: blur(12px) saturate(130%);
  -webkit-backdrop-filter: blur(12px) saturate(130%);
  border-bottom: 1px solid var(--rule);
}

.topbar .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 18px;
  gap: 2rem;
}

.brand {
  display: flex; align-items: center; gap: 14px;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 18px;
  letter-spacing: -0.01em;
}

.brand svg { width: 22px; height: 28px; }

.brand b { font-weight: 600; }
.brand span { color: var(--ink-dim); font-weight: 400; }

.nav {
  display: flex; align-items: center;
  gap: clamp(1rem, 2.5vw, 2.25rem);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.nav a {
  color: var(--ink-dim);
  position: relative;
  padding-block: 4px;
  transition: color 160ms ease;
}

.nav a::before {
  content: counter(navitem, decimal-leading-zero);
  counter-increment: navitem;
  color: var(--ink-faint);
  margin-right: 8px;
  font-size: 10px;
}

.nav { counter-reset: navitem; }

.nav a:hover, .nav a[aria-current="page"] { color: var(--cream); }
.nav a[aria-current="page"]::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -4px;
  height: 1px; background: var(--red);
}

.nav-cta {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 9px 16px;
  border: 1px solid var(--rule-strong);
  color: var(--cream);
  transition: all 180ms ease;
}
.nav-cta:hover {
  border-color: var(--red);
  background: var(--red-glow);
}

/* mobile nav toggle */
.nav-toggle {
  display: none;
  background: none; border: 1px solid var(--rule-strong);
  color: var(--cream); padding: 8px 12px;
  font-family: var(--font-mono); font-size: 11px;
  letter-spacing: 0.1em; text-transform: uppercase;
  cursor: pointer;
}

@media (max-width: 820px) {
  .nav-toggle { display: inline-block; }
  .nav {
    position: absolute;
    top: 100%; left: 0; right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--rule);
    padding: 8px var(--gutter) 24px;
    display: none;
  }
  .nav.open { display: flex; }
  .nav a { padding-block: 14px; width: 100%; border-bottom: 1px solid var(--rule); }
  .nav-cta { margin-top: 16px; }
}

/* ---------- hero ---------- */
.hero {
  position: relative;
  padding-block: clamp(4rem, 10vw, 9rem) clamp(3rem, 7vw, 6rem);
  overflow: hidden;
}

.hero::before {
  /* scan-line grid */
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(to right, var(--rule) 1px, transparent 1px),
    linear-gradient(to bottom, var(--rule) 1px, transparent 1px);
  background-size: 80px 80px;
  mask-image: radial-gradient(ellipse 70% 60% at 70% 30%, black 20%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 70% 30%, black 20%, transparent 80%);
  opacity: 0.5;
  pointer-events: none;
}

.hero::after {
  /* red ambient glow */
  content: "";
  position: absolute;
  top: -10%; right: -10%;
  width: 50vw; height: 50vw;
  background: radial-gradient(circle at center, var(--red-glow), transparent 60%);
  pointer-events: none;
  z-index: 0;
}

.hero .wrap { position: relative; z-index: 1; }

.hero-meta {
  display: flex; align-items: center; gap: 12px;
  margin-bottom: 2.5rem;
}

.hero-meta .line {
  flex: 0 0 60px;
  height: 1px; background: var(--rule-strong);
}

.hero h1 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(2.75rem, 8vw, 6.5rem);
  line-height: 0.98;
  letter-spacing: -0.03em;
  max-width: 14ch;
  margin-bottom: 2rem;
}

.hero h1 em {
  font-style: italic;
  font-variation-settings: "SOFT" 100, "opsz" 144;
  color: var(--red);
}

.hero-sub {
  max-width: 52ch;
  font-size: clamp(1.05rem, 1.6vw, 1.25rem);
  color: var(--ink-dim);
  margin-bottom: 2.75rem;
  line-height: 1.55;
}

.hero-sub strong { color: var(--ink); font-weight: 500; }

.hero-cta {
  display: flex; flex-wrap: wrap; gap: 14px;
}

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 15px 22px;
  border: 1px solid transparent;
  transition: all 200ms ease;
  cursor: pointer;
}

.btn-primary {
  background: var(--red);
  color: var(--cream);
  border-color: var(--red);
}
.btn-primary:hover {
  background: var(--cream);
  color: var(--bg);
  border-color: var(--cream);
}

.btn-ghost {
  background: transparent;
  color: var(--cream);
  border-color: var(--rule-strong);
}
.btn-ghost:hover {
  border-color: var(--cream);
}

.btn .arrow {
  width: 14px; height: 10px;
  transition: transform 200ms ease;
}
.btn:hover .arrow { transform: translateX(4px); }

/* ---------- section scaffolding ---------- */
section.block {
  padding-block: clamp(4rem, 9vw, 7rem);
  border-top: 1px solid var(--rule);
  position: relative;
}

.block-head {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 3rem;
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
  align-items: start;
}

@media (max-width: 720px) {
  .block-head { grid-template-columns: 1fr; gap: 1.25rem; }
}

.block-kicker {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-dim);
}
.block-kicker::before {
  content: "§ ";
  color: var(--red);
}

.block-head h2 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(1.9rem, 4.5vw, 3rem);
  line-height: 1.05;
  letter-spacing: -0.025em;
  max-width: 22ch;
}
.block-head h2 em {
  font-style: italic;
  color: var(--red);
}

.block-head p.lede {
  color: var(--ink-dim);
  max-width: 52ch;
  margin-top: 1rem;
}

/* ---------- capabilities strip (home) ---------- */
.capstrip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}

.capstrip .cap {
  padding: 2rem 1.5rem;
  border-right: 1px solid var(--rule);
  min-height: 200px;
  display: flex; flex-direction: column;
  justify-content: space-between;
  transition: background 200ms ease;
}
.capstrip .cap:last-child { border-right: 0; }
.capstrip .cap:hover { background: var(--bg-elev); }

.cap .cap-num {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--red);
  letter-spacing: 0.1em;
}

.cap h3 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.35rem;
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin-top: 1rem;
}

.cap p {
  font-size: 14px;
  color: var(--ink-dim);
  margin-top: 0.75rem;
  line-height: 1.5;
}

@media (max-width: 980px) { .capstrip { grid-template-columns: repeat(2, 1fr); } .capstrip .cap:nth-child(2) { border-right: 0; } .capstrip .cap:nth-child(1), .capstrip .cap:nth-child(2) { border-bottom: 1px solid var(--rule); } }
@media (max-width: 560px) { .capstrip { grid-template-columns: 1fr; } .capstrip .cap { border-right: 0 !important; border-bottom: 1px solid var(--rule); } .capstrip .cap:last-child { border-bottom: 0; } }

/* ---------- numbered service list ---------- */
.services-list { list-style: none; }

.services-list li {
  display: grid;
  grid-template-columns: 120px 1fr auto;
  gap: 2rem;
  padding-block: 2.5rem;
  border-top: 1px solid var(--rule);
  align-items: start;
  cursor: pointer;
  transition: background 240ms ease;
  position: relative;
}
.services-list li:last-child { border-bottom: 1px solid var(--rule); }
.services-list li:hover { background: var(--bg-elev); padding-inline: 1rem; padding-right: 1rem; }
.services-list li::after {
  content: "→";
  position: absolute;
  right: 1.5rem;
  top: 2.5rem;
  color: var(--red);
  opacity: 0;
  transform: translateX(-8px);
  transition: all 240ms ease;
  font-size: 1.4rem;
}
.services-list li:hover::after { opacity: 1; transform: translateX(0); }

.services-list .sv-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--ink-faint);
  padding-top: 6px;
}

.services-list h3 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(1.5rem, 2.8vw, 2rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
}

.services-list p {
  color: var(--ink-dim);
  max-width: 68ch;
  font-size: 15px;
}

.services-list .sv-tags {
  display: flex; flex-wrap: wrap; gap: 8px;
  margin-top: 1rem;
}
.sv-tags span {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-dim);
  padding: 4px 8px;
  border: 1px solid var(--rule-strong);
}

@media (max-width: 720px) {
  .services-list li { grid-template-columns: 1fr; gap: 1rem; padding-block: 2rem; }
  .services-list li:hover { padding-inline: 0; }
  .services-list li::after { display: none; }
}

/* ---------- about two-col ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 6vw, 5rem);
  align-items: start;
}
@media (max-width: 860px) { .about-grid { grid-template-columns: 1fr; } }

.about-grid p {
  margin-bottom: 1.25rem;
  color: var(--ink);
  font-size: 17px;
  line-height: 1.65;
}
.about-grid p:first-child::first-letter {
  font-family: var(--font-display);
  font-size: 4.5rem;
  line-height: 0.9;
  float: left;
  padding: 0.3rem 0.6rem 0 0;
  color: var(--red);
  font-weight: 500;
}

.credentials {
  background: var(--bg-elev);
  border: 1px solid var(--rule);
  padding: 2rem;
}

.credentials .meta { margin-bottom: 1.25rem; }

.credentials dl {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.75rem 1.5rem;
  font-size: 14px;
}
.credentials dt {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-dim);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding-top: 3px;
  white-space: nowrap;
}
.credentials dd { color: var(--ink); }

/* ---------- contact ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 4rem);
}
@media (max-width: 860px) { .contact-grid { grid-template-columns: 1fr; } }

.contact-methods {
  display: flex; flex-direction: column;
  gap: 0;
  border-top: 1px solid var(--rule);
}
.contact-methods a, .contact-methods .row {
  display: flex; justify-content: space-between; align-items: baseline;
  padding-block: 1.5rem;
  border-bottom: 1px solid var(--rule);
  gap: 1rem;
  transition: color 180ms ease;
}
.contact-methods a:hover { color: var(--red); }
.contact-methods .label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-dim);
  flex-shrink: 0;
}
.contact-methods .value {
  font-family: var(--font-display);
  font-size: 1.15rem;
  text-align: right;
  letter-spacing: -0.01em;
}

/* form */
.contact-form {
  background: var(--bg-elev);
  border: 1px solid var(--rule);
  padding: clamp(1.5rem, 3vw, 2.5rem);
}

.contact-form .field {
  display: block;
  margin-bottom: 1.25rem;
}

.contact-form label {
  display: block;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--ink-dim);
  margin-bottom: 0.5rem;
}

.contact-form input,
.contact-form textarea,
.contact-form select {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--rule-strong);
  color: var(--ink);
  padding: 12px 14px;
  font-family: var(--font-body);
  font-size: 15px;
  transition: border-color 180ms ease;
}
.contact-form input:focus,
.contact-form textarea:focus,
.contact-form select:focus {
  outline: none;
  border-color: var(--red);
}

.contact-form textarea { min-height: 140px; resize: vertical; }

.contact-form .btn { width: 100%; justify-content: center; }

.form-note {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-dim);
  margin-top: 1rem;
  letter-spacing: 0.05em;
}

/* ---------- page header (interior pages) ---------- */
.page-head {
  padding-block: clamp(4rem, 8vw, 6.5rem) clamp(2.5rem, 5vw, 4rem);
  border-bottom: 1px solid var(--rule);
  position: relative;
  overflow: hidden;
}
.page-head::after {
  content: "";
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse at 90% 50%, var(--red-glow), transparent 50%),
    linear-gradient(to right, var(--rule) 1px, transparent 1px);
  background-size: auto, 80px 80px;
  opacity: 0.6;
  pointer-events: none;
}

.page-head .wrap { position: relative; z-index: 1; }

.page-head h1 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(2.5rem, 6.5vw, 5rem);
  line-height: 1;
  letter-spacing: -0.03em;
  margin-top: 2rem;
}
.page-head h1 em { font-style: italic; color: var(--red); }

.page-head .tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--ink-dim);
}
.page-head .tag::before { content: "// "; color: var(--red); }

/* ---------- CTA band ---------- */
.cta-band {
  border-top: 1px solid var(--rule);
  padding-block: clamp(3rem, 6vw, 5rem);
  background:
    radial-gradient(ellipse at 20% 50%, var(--red-glow), transparent 60%),
    var(--bg);
}
.cta-band .wrap {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 3rem;
  align-items: center;
}
@media (max-width: 720px) { .cta-band .wrap { grid-template-columns: 1fr; } }

.cta-band h2 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(1.8rem, 4vw, 2.75rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
}
.cta-band h2 em { font-style: italic; color: var(--red); }

/* ---------- footer ---------- */
footer {
  padding-block: 3rem 2rem;
  border-top: 1px solid var(--rule-strong);
  margin-top: 0;
}

footer .wrap {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 2rem;
  margin-bottom: 3rem;
}
@media (max-width: 720px) { footer .wrap { grid-template-columns: 1fr 1fr; } }

footer h4 {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--ink-dim);
  margin-bottom: 1rem;
}

footer ul { list-style: none; display: flex; flex-direction: column; gap: 0.5rem; }
footer a { color: var(--ink); font-size: 14px; transition: color 160ms ease; }
footer a:hover { color: var(--red); }

footer .foot-brand p {
  font-size: 14px;
  color: var(--ink-dim);
  max-width: 38ch;
  margin-top: 1rem;
}

.foot-bottom {
  border-top: 1px solid var(--rule);
  padding-top: 1.5rem;
  display: flex; justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--ink-faint);
  flex-wrap: wrap; gap: 1rem;
}

.foot-bottom .dot { color: var(--red); }

/* ---------- reveal animation ---------- */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 700ms ease, transform 700ms ease;
}
.reveal.in {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .reveal { opacity: 1; transform: none; }
}