/* ============================================================
   PATRULLAS — Design System
   Technical & rugged, expedition-grade institutional
   ============================================================ */

:root {
  /* Brand */
  --red: #C8102E;
  --red-deep: #9C0C24;
  --red-glow: oklch(0.62 0.21 27);
  --black: #0A0A0A;
  --ink: #1A1A1A;
  --graphite: #2C2C2C;
  --slate: #4A4A4A;
  --steel: #7A7A7A;
  --line: #D6D2CB;
  --line-soft: #E8E4DD;
  --paper: #F5F2ED;
  --paper-deep: #EFEAE1;
  --white: #FFFFFF;
  --ice: oklch(0.78 0.02 230);
  --ice-deep: oklch(0.55 0.04 230);

  /* Type */
  --font-display: 'Space Grotesk', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', Menlo, monospace;

  /* Spacing scale (rugged: 4px grid) */
  --gap: 24px;
  --pad: 32px;
  --section-pad: 120px;

  /* Density-tweakable */
  --density-y: 1;
}

[data-density="compact"] {
  --section-pad: 72px;
  --pad: 24px;
}
[data-density="spacious"] {
  --section-pad: 160px;
  --pad: 40px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--paper);
  color: var(--ink);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* ── Type ── */
h1, h2, h3, h4, h5 {
  font-family: var(--font-display);
  font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 1.05;
  color: var(--black);
  text-wrap: balance;
}

h1 { font-size: clamp(48px, 7vw, 96px); font-weight: 600; letter-spacing: -0.03em; }
h2 { font-size: clamp(36px, 4.5vw, 60px); }
h3 { font-size: clamp(24px, 2.4vw, 36px); }
h4 { font-size: 20px; }

p { text-wrap: pretty; max-width: 65ch; }

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.mono {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--slate);
  font-weight: 500;
}

.mono-data {
  font-family: var(--font-mono);
  font-feature-settings: "tnum" 1;
}

/* ── Layout primitives ── */
.container {
  width: 100%;
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 32px;
}
.container-wide {
  width: 100%;
  max-width: 1680px;
  margin: 0 auto;
  padding: 0 32px;
}

.section {
  padding: var(--section-pad) 0;
  border-top: 1px solid var(--line);
  position: relative;
}
.section-dark {
  background: var(--black);
  color: var(--paper);
  border-color: var(--graphite);
}
.section-dark h1, .section-dark h2, .section-dark h3, .section-dark h4 { color: var(--white); }
.section-dark .mono { color: var(--steel); }

.section-label {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 32px;
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--slate);
  font-weight: 500;
}
.section-label::before {
  content: '';
  width: 24px;
  height: 1px;
  background: var(--red);
}
.section-dark .section-label { color: var(--steel); }

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 16px 24px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 500;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.2s;
  background: none;
  white-space: nowrap;
}
.btn-primary {
  background: var(--red);
  color: var(--white);
  border-color: var(--red);
}
.btn-primary:hover { background: var(--red-deep); border-color: var(--red-deep); }
.btn-ghost {
  border-color: currentColor;
  color: inherit;
}
.btn-ghost:hover { background: var(--ink); color: var(--white); border-color: var(--ink); }
.section-dark .btn-ghost:hover { background: var(--white); color: var(--black); border-color: var(--white); }

.btn-arrow::after {
  content: '→';
  font-family: var(--font-body);
  font-size: 14px;
}

/* ── Nav ── */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(245, 242, 237, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  display: flex;
  align-items: center;
  gap: 32px;
  padding: 16px 32px;
  max-width: 1680px;
  margin: 0 auto;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 14px;
  letter-spacing: -0.01em;
  color: var(--black);
}
.nav-logo-mark {
  width: 32px;
  height: 32px;
  background: var(--red);
  position: relative;
  flex-shrink: 0;
}
.nav-logo-mark::before {
  content: '';
  position: absolute;
  inset: 8px;
  background: var(--white);
  clip-path: polygon(50% 0%, 100% 100%, 0% 100%);
}
.nav-logo-mark::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--white);
  clip-path: polygon(45% 50%, 55% 50%, 55% 100%, 45% 100%);
}
.nav-logo-text { display: flex; flex-direction: column; line-height: 1; gap: 3px; }
.nav-logo-text small { font-family: var(--font-mono); font-size: 9px; font-weight: 500; color: var(--slate); letter-spacing: 0.1em; }
.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  margin-left: auto;
  font-size: 13px;
}
.nav-link {
  color: var(--ink);
  font-weight: 500;
  position: relative;
  padding: 4px 0;
  transition: color 0.2s;
}
.nav-link:hover { color: var(--red); }
.nav-link.active { color: var(--red); }
.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--red);
}
.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  background: var(--red);
  color: var(--white);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 500;
}
.nav-cta:hover { background: var(--red-deep); }

/* ── Footer ── */
.footer {
  background: var(--black);
  color: var(--paper);
  padding: 96px 0 32px;
}
.footer h4 { color: var(--white); font-family: var(--font-mono); font-size: 11px; text-transform: uppercase; letter-spacing: 0.1em; margin-bottom: 20px; font-weight: 500; }
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 64px;
  border-bottom: 1px solid var(--graphite);
}
.footer-brand p { color: var(--steel); font-size: 13px; margin-top: 16px; max-width: 30ch; }
.footer ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.footer ul a { color: var(--steel); font-size: 13px; transition: color 0.2s; }
.footer ul a:hover { color: var(--white); }
.footer-bottom {
  padding-top: 32px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--steel);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.footer-bottom-coords { display: flex; gap: 24px; }

/* ── Topographic decorations ── */
.topo-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.5;
  background-image: radial-gradient(ellipse 60% 40% at 30% 50%, transparent 30%, rgba(0,0,0,0.025) 30.5%, transparent 31%),
                    radial-gradient(ellipse 50% 35% at 30% 50%, transparent 35%, rgba(0,0,0,0.025) 35.5%, transparent 36%),
                    radial-gradient(ellipse 40% 30% at 30% 50%, transparent 40%, rgba(0,0,0,0.025) 40.5%, transparent 41%),
                    radial-gradient(ellipse 30% 22% at 30% 50%, transparent 45%, rgba(0,0,0,0.025) 45.5%, transparent 46%);
}

/* ── Cards / data blocks ── */
.data-block {
  border: 1px solid var(--line);
  background: var(--white);
  padding: 28px;
  position: relative;
  transition: border-color 0.2s, transform 0.2s;
}
.data-block:hover { border-color: var(--ink); }
.data-block-corner {
  position: absolute;
  top: 12px;
  right: 12px;
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--steel);
  letter-spacing: 0.1em;
}

/* ── Hero stats ── */
.stat-num {
  font-family: var(--font-display);
  font-size: clamp(48px, 6vw, 88px);
  font-weight: 500;
  letter-spacing: -0.04em;
  line-height: 0.95;
  font-feature-settings: "tnum" 1;
}
.stat-label {
  font-family: var(--font-mono);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--slate);
  margin-top: 8px;
}

/* ── Animation utilities ── */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.8s cubic-bezier(.2,.7,.2,1), transform 0.8s cubic-bezier(.2,.7,.2,1);
}
.reveal.in {
  opacity: 1;
  transform: none;
}

/* ── Page header ── */
.page-header {
  padding: 96px 0 72px;
  border-bottom: 1px solid var(--line);
  position: relative;
  overflow: hidden;
}
.page-header-eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--red);
  margin-bottom: 24px;
}
.page-header h1 {
  max-width: 18ch;
  margin-bottom: 24px;
}
.page-header-meta {
  display: flex;
  gap: 32px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--slate);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding-top: 32px;
  border-top: 1px solid var(--line);
  margin-top: 48px;
}

/* ── Image placeholders / treatments ── */
.img-frame {
  position: relative;
  background: var(--ink);
  overflow: hidden;
}
.img-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.img-caption {
  position: absolute;
  bottom: 12px;
  left: 12px;
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--white);
  background: rgba(0,0,0,0.6);
  padding: 4px 8px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* ── Form controls ── */
.field {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 24px;
}
.field-label {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--slate);
  font-weight: 500;
  display: flex;
  justify-content: space-between;
}
.field-label-required::after { content: '*'; color: var(--red); margin-left: 4px; }

.input, .textarea, .select {
  font-family: var(--font-body);
  font-size: 16px;
  padding: 14px 16px;
  background: var(--white);
  border: 1px solid var(--line);
  color: var(--ink);
  width: 100%;
  transition: border-color 0.15s;
  border-radius: 0;
}
.input:focus, .textarea:focus, .select:focus {
  outline: none;
  border-color: var(--ink);
}
.input.error { border-color: var(--red); }
.field-error {
  font-family: var(--font-mono);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--red);
  margin-top: 4px;
}

/* ── Animated red ticker ── */
@keyframes ticker { from { transform: translateX(0); } to { transform: translateX(-50%); } }
.ticker {
  background: var(--red);
  color: var(--white);
  padding: 12px 0;
  overflow: hidden;
  white-space: nowrap;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 500;
}
.ticker-track {
  display: inline-block;
  animation: ticker 60s linear infinite;
  padding-left: 100%;
}
.ticker-track > span {
  margin-right: 48px;
}
.ticker-track > span::before {
  content: '✦';
  margin-right: 48px;
  color: rgba(255,255,255,0.5);
}

/* ── Scrolling helpers ── */
@media (max-width: 760px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .nav-links { display: none; }
}
@media (max-width: 1100px) and (min-width: 761px) {
  .nav-links { gap: 16px; font-size: 12px; }
}