/* ============================================================
   Deep Q — deepqgroup.eu
   Palette: brand navy ink + periwinkle (sampled from the logo)
     #21335D deep navy · #213F7C royal navy · #BACAE8 periwinkle
   Type: Space Grotesk (display) / IBM Plex Sans (body) / IBM Plex Mono (labels)
   Signature: offset-layer parallelograms + circuit traces, echoing the Q mark
   ============================================================ */

:root {
  --bg:        #070B14;   /* navy ink */
  --bg-2:      #0C1426;   /* raised panel */
  --line:      rgba(154, 170, 205, 0.16);
  --text:      #E9EEF9;
  --muted:     #93A1C4;
  --navy:      #213F7C;   /* logo face */
  --navy-deep: #21335D;   /* logo shadow layer */
  --peri:      #BACAE8;   /* logo Q glyph — primary accent */
  --peri-dim:  #8FA3CF;
  --peri-hi:   #D8E2F6;

  --font-display: "Space Grotesk", "Segoe UI", sans-serif;
  --font-body:    "IBM Plex Sans", "Segoe UI", sans-serif;
  --font-mono:    "IBM Plex Mono", Consolas, monospace;

  --content: 1120px;
}

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

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

::selection { background: var(--peri); color: #101A33; }

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.12;
  letter-spacing: -0.015em;
  text-wrap: balance;
}

a { color: inherit; }

/* ---------- shared bits ---------- */

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--peri);
  margin-bottom: 1.1rem;
}

/* tiny two-layer skewed square — the logo mark in miniature */
.eyebrow::before {
  content: "";
  display: inline-block;
  width: 0.55em;
  height: 0.55em;
  margin-right: 0.7em;
  background: var(--peri);
  transform: skewX(-12deg);
  box-shadow: -0.24em 0.24em 0 var(--navy);
}

.btn {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 500;
  text-decoration: none;
  padding: 0.8rem 1.7rem;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background-color 160ms ease, color 160ms ease, border-color 160ms ease;
}
.btn-solid {
  background: var(--peri);
  color: #0D1730;
}
.btn-solid:hover { background: var(--peri-hi); }
.btn-ghost {
  border-color: rgba(154, 170, 205, 0.4);
  color: var(--text);
}
.btn-ghost:hover { border-color: var(--peri); color: var(--peri); }

:focus-visible {
  outline: 2px solid var(--peri);
  outline-offset: 3px;
  border-radius: 2px;
}

.skip-link {
  position: absolute;
  left: 1rem; top: -3rem;
  z-index: 100;
  background: var(--peri);
  color: #0D1730;
  padding: 0.5rem 1rem;
  border-radius: 0 0 6px 6px;
  text-decoration: none;
  transition: top 150ms ease;
}
.skip-link:focus { top: 0; }

/* ---------- header ---------- */

.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}

.nav {
  position: relative;
  max-width: var(--content);
  margin: 0 auto;
  padding: 0.9rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

/* menu button — only ever shown on narrow screens */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 0.55rem;
  background: none;
  border: 1px solid rgba(154, 170, 205, 0.4);
  border-radius: 999px;
  padding: 0.45rem 0.9rem;
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  cursor: pointer;
  transition: border-color 150ms ease, color 150ms ease;
}
.nav-toggle:hover { border-color: var(--peri); color: var(--peri); }

/* two stacked bars that become an X when open — echoes the logo's layers */
.nav-toggle-bars,
.nav-toggle-bars::before {
  display: block;
  width: 15px;
  height: 2px;
  background: currentColor;
  transition: transform 180ms ease;
}
.nav-toggle-bars { position: relative; }
.nav-toggle-bars::before { content: ""; position: absolute; top: -5px; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bars { transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::before { transform: translateY(5px) rotate(-90deg); }

.wordmark {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  text-decoration: none;
}
.wordmark-mark {
  height: 1.75rem;
  width: auto;
  display: block;
}
.wordmark-q { color: var(--peri); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.8rem;
  font-size: 0.95rem;
}
.nav-links a { text-decoration: none; color: var(--muted); transition: color 150ms ease; }
.nav-links a:hover { color: var(--text); }

.nav-cta {
  border: 1px solid rgba(154, 170, 205, 0.4);
  border-radius: 999px;
  padding: 0.45rem 1.1rem;
  color: var(--text) !important;
  transition: border-color 150ms ease, color 150ms ease;
}
.nav-cta:hover { border-color: var(--peri); color: var(--peri) !important; }

/* ---------- hero ---------- */

.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: 7rem 1.5rem 5rem;
  /* faint pad grid, like unrouted board space */
  background-image: radial-gradient(rgba(186, 202, 232, 0.055) 1px, transparent 1px);
  background-size: 26px 26px;
}

#circuit {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero-inner {
  position: relative;
  width: 100%;
  max-width: var(--content);
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
  gap: 3rem;
  align-items: center;
}

.hero h1 {
  font-size: clamp(2.6rem, 6.5vw, 4.5rem);
  margin-bottom: 1.4rem;
}
.hero h1 em {
  font-style: normal;
  color: var(--peri);
}

.hero-sub {
  font-size: clamp(1.05rem, 2vw, 1.2rem);
  color: var(--muted);
  max-width: 34rem;
  margin-bottom: 2.4rem;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.hero-mark {
  display: flex;
  justify-content: center;
}
.hero-mark img {
  width: min(100%, 380px);
  height: auto;
  filter: drop-shadow(0 34px 70px rgba(33, 63, 124, 0.5));
  animation: mark-float 7s ease-in-out infinite;
}
@keyframes mark-float {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-12px); }
}

.hero-hint {
  position: absolute;
  bottom: 1.6rem;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--muted);
  animation: hint-drift 2.6s ease-in-out infinite;
}
@keyframes hint-drift {
  0%, 100% { transform: translate(-50%, 0); opacity: 0.55; }
  50%      { transform: translate(-50%, 6px); opacity: 1; }
}

/* ---------- mission band ---------- */

.mission {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--bg-2);
  padding: 5.5rem 1.5rem;
}

.mission-text {
  max-width: 54rem;
  margin: 0 auto;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3.4vw, 2.4rem);
  font-weight: 500;
  line-height: 1.32;
  letter-spacing: -0.01em;
  text-align: center;
  text-wrap: balance;
}
.mission-text .hl { color: var(--peri); }

/* ---------- sections ---------- */

.section {
  max-width: var(--content);
  margin: 0 auto;
  padding: 6.5rem 1.5rem;
}

.section-alt {
  max-width: none;
  background: var(--bg-2);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.section-alt .section-head,
.section-alt .about-grid {
  max-width: var(--content);
  margin-left: auto;
  margin-right: auto;
}

.section-head { margin-bottom: 3.2rem; }

.section-head h2 {
  font-size: clamp(1.9rem, 4vw, 2.8rem);
  max-width: 30ch;
}

.section-sub {
  color: var(--muted);
  max-width: 44rem;
  margin-top: 1.1rem;
}

/* ---------- pillars ---------- */

.pillars {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}

.pillar {
  border: 1px solid var(--line);
  border-radius: 4px;
  background: linear-gradient(180deg, var(--bg-2), color-mix(in srgb, var(--bg-2) 55%, var(--bg)));
  padding: 2rem 2rem 2.2rem;
  transition: border-color 180ms ease, transform 180ms ease, box-shadow 180ms ease;
}
/* hover = the logo's offset-layer move: card lifts up-right, navy layer stays behind */
.pillar:hover {
  border-color: rgba(186, 202, 232, 0.45);
  transform: translate(3px, -3px);
  box-shadow: -8px 8px 0 -1px var(--navy-deep);
}

.pillar-tag {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--peri-dim);
  margin-bottom: 1.4rem;
}

.pillar h3 {
  font-size: 1.35rem;
  margin-bottom: 0.7rem;
}

.pillar p:last-child {
  color: var(--muted);
  font-size: 0.99rem;
}

/* ---------- about ---------- */

.about-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.5rem;
}

.about-item {
  border-top: 1px solid var(--line);
  padding-top: 1.4rem;
}

.about-label {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--peri);
  margin-bottom: 0.8rem;
}

.about-item p:last-child { color: var(--text); }

/* ---------- contact ---------- */

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 4rem;
  align-items: start;
}

.contact-info h2 {
  font-size: clamp(1.9rem, 4vw, 2.6rem);
}

.contact-line {
  margin-top: 1.2rem;
  font-family: var(--font-display);
  font-size: 1.15rem;
}
.contact-line a {
  color: var(--text);
  text-decoration: none;
  border-bottom: 1px solid var(--peri-dim);
  padding-bottom: 2px;
  transition: color 150ms ease, border-color 150ms ease;
}
.contact-line a:hover { color: var(--peri); border-color: var(--peri); }

.contact-line:first-of-type { margin-top: 2.2rem; }

.contact-form label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 1.2rem;
}

.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.contact-form input,
.contact-form textarea {
  display: block;
  width: 100%;
  margin-top: 0.45rem;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: 4px;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 1rem;
  padding: 0.75rem 0.9rem;
  transition: border-color 150ms ease;
}
.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--peri);
}
.contact-form textarea { resize: vertical; }

.contact-form .btn { margin-top: 0.4rem; }
.contact-form .btn[disabled] {
  opacity: 0.55;
  cursor: default;
}

/* spam honeypot — hidden from people, tempting to bots */
.hp-field { display: none; }

.form-note {
  margin-top: 1rem;
  font-size: 0.9rem;
  color: var(--peri);
  min-height: 1.4em;
}
.form-note-error { color: #E8A0A0; }

/* ---------- footer ---------- */

.site-footer {
  border-top: 1px solid var(--line);
  padding: 2.2rem 1.5rem 2.6rem;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  max-width: var(--content);
  margin: 0 auto;
  color: var(--muted);
  font-size: 0.9rem;
}
.site-footer a {
  display: inline-block;
  min-height: 24px;          /* WCAG 2.2 target size */
  padding: 2px 0;
  color: var(--muted);
  text-decoration: none;
}
.site-footer a:hover { color: var(--peri); }

/* ---------- 404 ---------- */

.notfound {
  min-height: 100svh;
  max-width: 34rem;
  margin: 0 auto;
  padding: 4rem 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}
.notfound-mark {
  width: 120px;
  height: auto;
  margin-bottom: 2.5rem;
  opacity: 0.9;
}
.notfound h1 {
  font-size: clamp(2rem, 5vw, 2.8rem);
  margin-bottom: 1rem;
}
.notfound-sub {
  color: var(--muted);
  margin-bottom: 2.2rem;
}
.notfound-contact {
  margin-top: 2.5rem;
  font-size: 0.92rem;
  color: var(--muted);
}
.notfound-contact a { color: var(--peri); }

/* ---------- responsive ---------- */

@media (max-width: 860px) {
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 2.2rem;
    text-align: center;
  }
  .hero-sub { margin-left: auto; margin-right: auto; }
  .hero-actions { justify-content: center; }
  .hero-mark { order: -1; }
  .hero-mark img { width: min(46vw, 190px); }
  .pillars { grid-template-columns: 1fr; }
  .about-grid { grid-template-columns: 1fr; gap: 1.8rem; }
  .contact-grid { grid-template-columns: 1fr; gap: 3rem; }
  .section { padding: 4.5rem 1.5rem; }
}

/* ---------- collapsed navigation ---------- */

@media (max-width: 720px) {
  .nav-toggle { display: inline-flex; }

  .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 0.5rem 1.5rem 1.2rem;
    background: color-mix(in srgb, var(--bg) 96%, transparent);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--line);
  }
  .nav-links.is-open { display: flex; }

  .nav-links a {
    padding: 0.85rem 0;
    border-top: 1px solid var(--line);
    font-size: 1rem;
  }
  .nav-links .nav-cta {
    margin-top: 1rem;
    border-top: 1px solid rgba(154, 170, 205, 0.4);
    text-align: center;
  }
}

@media (max-width: 560px) {
  .field-row { grid-template-columns: 1fr; gap: 0; }
  .hero-hint { display: none; }
}