/* ═══════════════════════════════════════════════════════════════════════
   v4 — the Lovable landing page, hand-ported to static HTML/CSS.

   Unlike v2 and v3, this one does NOT layer on styles.css. It carries a
   different design system entirely — navy canvas, glass surfaces, Space
   Grotesk / DM Sans — so inheriting the site tokens would mean overriding
   nearly all of them. v4.html loads this file alone.

   Colour rule worth keeping: --accent is a fill colour, not a text colour.
   At 3.2:1 on the background it fails AA as text, so anything readable uses
   --accent-bright (7.4:1 on background, 5.0:1 on surface). Fills, borders
   and buttons keep --accent.
   ═══════════════════════════════════════════════════════════════════════ */

:root {
  --background: #0f1b3d;
  --foreground: #e8edf3;
  --surface: #1e3a5f;
  --accent: #3b6fa0;
  --accent-bright: #7fb0dd;

  --fg-80: color-mix(in srgb, var(--foreground) 80%, transparent);
  --fg-70: color-mix(in srgb, var(--foreground) 70%, transparent);
  --fg-60: color-mix(in srgb, var(--foreground) 60%, transparent);
  --fg-25: color-mix(in srgb, var(--foreground) 25%, transparent);

  --border: color-mix(in srgb, var(--accent) 25%, transparent);
  /* Error red, lifted toward the navy ground so it reads as part of the
     palette rather than a browser default. 5.6:1 on --background. */
  --error: #f2939b;

  --font-sans: "DM Sans", ui-sans-serif, system-ui, sans-serif;
  --font-display: "Space Grotesk", ui-sans-serif, system-ui, sans-serif;

  --radius: 1rem;
  --shell: 1400px;
}

*, *::before, *::after { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--background);
  color: var(--foreground);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3 { font-family: var(--font-display); line-height: 1.15; margin: 0; }
p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
a { color: inherit; }
svg { display: block; }

::selection { background: var(--accent); color: var(--foreground); }

.skip {
  position: absolute; left: -9999px; top: 0;
  background: var(--surface); color: var(--foreground);
  padding: 0.75rem 1rem; border-radius: 8px; z-index: 100;
}
.skip:focus { left: 1rem; top: 1rem; }

:where(a, button):focus-visible {
  outline: 2px solid var(--accent-bright);
  outline-offset: 3px;
  border-radius: 6px;
}

/* ── shell ─────────────────────────────────────────────────────────── */

.page {
  position: relative;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 5rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 6rem;
  overflow: hidden;
}
@media (min-width: 768px) { .page { padding: 5rem 3rem; } }
@media (min-width: 1024px) { .page { padding: 5rem 4rem; } }

/* Ambient glow. Decorative only, and clipped by .page's overflow. */
.orb {
  position: absolute;
  border-radius: 9999px;
  filter: blur(120px);
  pointer-events: none;
  z-index: 0;
}
.orb-a {
  top: -16rem; right: -16rem; width: 500px; height: 500px;
  background: color-mix(in srgb, var(--accent) 10%, transparent);
}
.orb-b {
  bottom: -12rem; left: -12rem; width: 400px; height: 400px;
  background: color-mix(in srgb, var(--surface) 20%, transparent);
}

.page > *:not(.orb) { position: relative; z-index: 1; }

/* ── brand bar ─────────────────────────────────────────────────────── */

.brandbar {
  display: flex; flex-wrap: wrap;
  align-items: center; justify-content: space-between;
  gap: 1rem;
}
.brand {
  font-family: var(--font-display);
  font-size: 1.25rem; font-weight: 700;
  text-decoration: none; line-height: 1.2;
}
.brand span { color: var(--accent-bright); }
.brandnav { display: flex; flex-wrap: wrap; align-items: center; gap: 1.5rem; font-size: 0.875rem; }
.brandnav a { color: var(--fg-70); text-decoration: none; transition: color 0.2s; }
.brandnav a:hover { color: var(--accent-bright); }

/* ── hero ──────────────────────────────────────────────────────────── */

.hero { display: grid; align-items: center; gap: 4rem; }
@media (min-width: 1024px) { .hero { grid-template-columns: 1fr 1fr; } }

.hero-copy { max-width: 42rem; }

.badge {
  display: inline-flex; align-items: center; gap: 0.5rem;
  max-width: 100%;
  margin-bottom: 2rem; padding: 0.25rem 0.75rem;
  border: 1px solid color-mix(in srgb, var(--accent) 30%, transparent);
  background: color-mix(in srgb, var(--surface) 40%, transparent);
  border-radius: 9999px;
}
.badge-dot {
  width: 0.5rem; height: 0.5rem; flex-shrink: 0;
  border-radius: 9999px; background: var(--accent);
  animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}
.badge-text {
  font-size: 0.7rem; font-weight: 500;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--accent-bright);
}
@media (min-width: 640px) { .badge-text { font-size: 0.75rem; } }

.hero h1 {
  margin-bottom: 2rem;
  font-size: clamp(2.25rem, 6vw, 4.5rem);
  font-weight: 700;
}
.hero h1 em { font-style: normal; color: var(--accent-bright); }

.hero-lede {
  margin-bottom: 2.5rem;
  font-size: 1.25rem; line-height: 1.65;
  color: var(--fg-70);
}

.cta-row { display: flex; flex-wrap: wrap; gap: 1rem; }
.btn {
  display: inline-block;
  padding: 1rem 2rem;
  font-family: var(--font-display); font-weight: 700;
  text-decoration: none; border-radius: 0.5rem;
  transition: transform 0.3s, background-color 0.3s;
}
.btn-primary {
  background: var(--accent); color: var(--foreground);
  box-shadow: 0 10px 15px -3px color-mix(in srgb, var(--accent) 20%, transparent);
  border: 1px solid transparent;
}
.btn-primary:hover {
  transform: translateY(-4px);
  background: color-mix(in srgb, var(--accent) 80%, transparent);
}
.btn-secondary {
  border: 1px solid color-mix(in srgb, var(--accent) 50%, transparent);
  color: var(--foreground);
}
.btn-secondary:hover { background: color-mix(in srgb, var(--surface) 30%, transparent); }

/* ── hero diagram ──────────────────────────────────────────────────── */

.figure {
  border: 1px solid color-mix(in srgb, var(--accent) 20%, transparent);
  border-radius: calc(var(--radius) + 1rem);
  background-image: linear-gradient(
    to bottom,
    color-mix(in srgb, var(--surface) 30%, transparent),
    transparent
  );
  backdrop-filter: blur(12px);
  padding: 1.5rem;
}
@media (min-width: 768px) { .figure { padding: 2rem; } }

.figure svg { width: 100%; height: auto; }

.dg-link {
  stroke: var(--accent); stroke-width: 1.5;
  opacity: 0.55; fill: none;
  stroke-dasharray: 4 8;
  animation: flowDash 1.6s linear infinite;
}
.dg-box { fill: color-mix(in srgb, var(--surface) 40%, transparent); stroke: color-mix(in srgb, var(--accent) 30%, transparent); }
.dg-label { fill: var(--fg-80); font-family: var(--font-sans); font-size: 20px; }
.dg-node { fill: var(--accent); }
.dg-panel { fill: color-mix(in srgb, var(--surface) 60%, transparent); stroke: color-mix(in srgb, var(--accent) 50%, transparent); stroke-width: 1.5; }
.dg-title { fill: var(--foreground); font-family: var(--font-display); font-size: 21px; }
.dg-rule { stroke: color-mix(in srgb, var(--accent) 30%, transparent); }
.dg-axis { stroke: color-mix(in srgb, var(--accent) 40%, transparent); }
.dg-bar { fill: var(--accent); }
.dg-row { fill: var(--fg-25); }

/* ── sections ──────────────────────────────────────────────────────── */

.section + .section,
.contact { border-top: 1px solid color-mix(in srgb, var(--surface) 100%, transparent); padding-top: 3rem; }

.eyebrow {
  margin-bottom: 0.75rem;
  font-size: 0.875rem; font-weight: 500;
  letter-spacing: 0.3em; text-transform: uppercase;
  color: var(--accent-bright);
}
.section h2 {
  margin-bottom: 3rem;
  font-size: clamp(1.875rem, 4vw, 3rem);
  font-weight: 700;
}

.grid3 { display: grid; gap: 2rem; }
@media (min-width: 768px) { .grid3 { grid-template-columns: repeat(3, 1fr); } }

/* pillars */
.card {
  padding: 2rem;
  border: 1px solid color-mix(in srgb, var(--accent) 10%, transparent);
  border-radius: calc(var(--radius) + 1rem);
  background-image: linear-gradient(
    to bottom,
    color-mix(in srgb, var(--surface) 30%, transparent),
    transparent
  );
  backdrop-filter: blur(12px);
  transition: border-color 0.5s;
}
.card:hover { border-color: color-mix(in srgb, var(--accent) 40%, transparent); }

.card-icon {
  display: flex; align-items: center; justify-content: center;
  width: 3.5rem; height: 3.5rem; margin-bottom: 1.5rem;
  border: 1px solid color-mix(in srgb, var(--accent) 40%, transparent);
  background: color-mix(in srgb, var(--accent) 30%, transparent);
  border-radius: 0.75rem;
  transition: transform 0.3s;
}
.card:hover .card-icon { transform: scale(1.1); }
.card-icon svg { width: 1.75rem; height: 1.75rem; stroke: var(--accent-bright); fill: none; }

.card h3 { margin-bottom: 1rem; font-size: 1.5rem; font-weight: 700; }
.card p { color: var(--fg-60); }

/* process */
.step { border-top: 1px solid color-mix(in srgb, var(--accent) 20%, transparent); padding-top: 1.5rem; }
.step-head { display: flex; align-items: center; gap: 0.75rem; margin-bottom: 1rem; }
.step-num { font-family: var(--font-display); font-size: 1.875rem; font-weight: 700; color: var(--accent-bright); }
.step-note {
  padding: 0.25rem 0.75rem;
  border: 1px solid color-mix(in srgb, var(--accent) 30%, transparent);
  background: color-mix(in srgb, var(--surface) 40%, transparent);
  border-radius: 9999px;
  font-size: 0.75rem; font-weight: 500;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--accent-bright);
}
.step h3 { margin-bottom: 0.75rem; font-size: 1.5rem; font-weight: 700; }
.step p { color: var(--fg-60); }

/* ── contact ───────────────────────────────────────────────────────── */

.contact { display: flex; flex-direction: column; align-items: center; gap: 1rem; text-align: center; }
.contact h2 { font-size: clamp(1.875rem, 4vw, 3rem); font-weight: 700; }
.contact-lede { color: var(--fg-60); }
.contact-email {
  font-family: var(--font-display); font-size: 1.125rem; font-weight: 700;
  color: var(--accent-bright); text-decoration: none;
  transition: color 0.2s;
}
.contact-email:hover { color: var(--foreground); }
.contact-where { font-size: 0.875rem; color: var(--fg-60); }
.contact-legal {
  margin-top: 2rem; max-width: 36rem;
  font-size: 0.75rem; line-height: 1.6; color: var(--fg-60);
}

/* ── motion ────────────────────────────────────────────────────────── */

@keyframes revealUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes flowDash { to { stroke-dashoffset: -24; } }
@keyframes pulse { 50% { opacity: 0.4; } }

.reveal { animation: revealUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) both; }
.d1 { animation-delay: 100ms; }
.d2 { animation-delay: 200ms; }
.d3 { animation-delay: 300ms; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ── enquiry form ──────────────────────────────────────────────────────
   Sits inside .contact, which is centred, so the form re-establishes a
   left-aligned reading column — centred labels and inputs are harder to
   scan and look unfinished. */

.enquiry {
  width: 100%; max-width: 34rem;
  margin: 1rem 0 0;
  text-align: left;
  display: grid; gap: 1rem;
}

.field { display: grid; gap: 0.4rem; }

.field-row { display: grid; gap: 1rem; }
@media (min-width: 560px) { .field-row { grid-template-columns: 1fr 1fr; } }

.field label {
  font-size: 0.8125rem; font-weight: 500;
  letter-spacing: 0.04em; text-transform: uppercase;
  color: var(--fg-80);
}

.field input,
.field textarea {
  width: 100%;
  padding: 0.75rem 0.875rem;
  font: inherit; font-size: 1rem;
  color: var(--foreground);
  background: color-mix(in srgb, var(--surface) 40%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent) 30%, transparent);
  border-radius: 0.5rem;
  transition: border-color 0.2s, background-color 0.2s;
}
.field textarea { resize: vertical; min-height: 7rem; line-height: 1.55; }

.field input::placeholder,
.field textarea::placeholder { color: var(--fg-60); }

.field input:hover,
.field textarea:hover { border-color: color-mix(in srgb, var(--accent) 50%, transparent); }

.field input:focus,
.field textarea:focus {
  outline: 2px solid var(--accent-bright);
  outline-offset: 1px;
  border-color: transparent;
  background: color-mix(in srgb, var(--surface) 60%, transparent);
}

/* Invalid state is only applied once the field has been marked, so nothing
   turns red while the visitor is still typing their first character. */
.field[data-invalid="true"] input,
.field[data-invalid="true"] textarea { border-color: var(--error); }

.field-error { font-size: 0.8125rem; color: var(--error); min-height: 0; }
.field[data-invalid="true"] .field-error { min-height: 1.2em; }

/* Honeypot. Off-screen rather than display:none — some bots skip hidden
   inputs, and this stays reachable to them while never shown to a person. */
.hp {
  position: absolute; left: -9999px; top: auto;
  width: 1px; height: 1px; overflow: hidden;
}

.enquiry-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 1rem; }

.enquiry button {
  padding: 0.875rem 2rem;
  font-family: var(--font-display); font-size: 1rem; font-weight: 700;
  color: var(--foreground); background: var(--accent);
  border: 1px solid transparent; border-radius: 0.5rem;
  cursor: pointer;
  box-shadow: 0 10px 15px -3px color-mix(in srgb, var(--accent) 20%, transparent);
  transition: transform 0.3s, background-color 0.3s, opacity 0.2s;
}
.enquiry button:hover:not(:disabled) {
  transform: translateY(-3px);
  background: color-mix(in srgb, var(--accent) 80%, transparent);
}
.enquiry button:disabled { opacity: 0.6; cursor: progress; transform: none; }

.enquiry-status { font-size: 0.9375rem; }
.enquiry-status[data-state="error"] { color: var(--error); }
.enquiry-status[data-state="ok"] { color: var(--accent-bright); }

/* Replaces the form on success, so the page doesn't invite a second send. */
.enquiry-done {
  width: 100%; max-width: 34rem; margin: 1rem 0 0;
  padding: 1.5rem;
  text-align: left;
  border: 1px solid color-mix(in srgb, var(--accent) 40%, transparent);
  background: color-mix(in srgb, var(--surface) 40%, transparent);
  border-radius: 0.75rem;
}
.enquiry-done h3 { margin-bottom: 0.5rem; font-size: 1.25rem; font-weight: 700; }
.enquiry-done p { color: var(--fg-60); font-size: 0.9375rem; }

.enquiry-fallback { font-size: 0.875rem; color: var(--fg-60); }
.enquiry-fallback .contact-email { font-size: inherit; }