/* =============================================================
   Paravector AI — Main Stylesheet
   Theme: Precision Systems Lab (dark technical)
   Palette: Deep Navy / Graphite / Vector Teal / Signal Cyan / Brass
   ============================================================= */

/* ── Design Tokens ─────────────────────────────────────────── */
:root {
  --bg:               #0B1220;
  --surface:          #121A2B;
  --surface-muted:    #1A2438;
  --surface-elevated: #1A2438;
  --text:             #E8EEF7;
  --text-muted:       #9AA8BD;
  --border:           #2B3850;
  --accent:           #2AA6A4;
  --accent-dark:      #1D8381;
  --accent-2:         #5FAFD6;
  --accent-3:         #B78A3B;
  --danger:           #EF4444;
  --success:          #22C55E;

  --font-display:   'Space Grotesk', system-ui, -apple-system, sans-serif;
  --font-body:      'Inter', system-ui, -apple-system, sans-serif;
  --font:           'Inter', system-ui, -apple-system, sans-serif;
  --radius:         8px;
  --radius-lg:      14px;
  --shadow-sm:      0 1px 3px rgba(0,0,0,0.35);
  --shadow-md:      0 4px 20px rgba(0,0,0,0.45);
  --max-w:          1180px;
  --px:             1.5rem;
  --transition:     0.2s ease;
  --nav-h:          68px;
}

/* ── Reset ─────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img { max-width: 100%; display: block; }
a  { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; font-family: inherit; }
input, textarea, select {
  font-family: inherit;
  font-size: 1rem;
  line-height: 1.5;
}

/* ── Typography ────────────────────────────────────────────── */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  color: var(--text);
}
h1 { font-size: clamp(2rem, 5vw, 3.25rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); }
h3 { font-size: 1.2rem; font-weight: 600; }
h4 { font-size: 1rem; font-weight: 600; }
p  { color: var(--text-muted); }

.lead {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 640px;
  line-height: 1.75;
}

.section-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-2);
  margin-bottom: 0.75rem;
  font-family: var(--font-body);
}

.highlight { color: var(--accent-3); }

/* ── Layout Utilities ──────────────────────────────────────── */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--px);
}

.section {
  padding: 5rem 0;
}

.section--muted {
  background: var(--surface);
}

.section--dark {
  background: var(--surface-elevated);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.section--dark h2,
.section--dark h3,
.section--dark h4 { color: var(--text); }
.section--dark p   { color: var(--text-muted); }
.section--dark .section-label { color: var(--accent-2); }

.section-header {
  margin-bottom: 3rem;
}
.section-header.centered {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.section-header .lead {
  margin-top: 0.75rem;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}
.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}
.grid-4 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
}

/* ── Fade-in animation ─────────────────────────────────────── */
[data-fade] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}
[data-fade].visible {
  opacity: 1;
  transform: none;
}

/* ── Buttons ───────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.7rem 1.5rem;
  border-radius: var(--radius);
  font-size: 0.925rem;
  font-weight: 600;
  border: 2px solid transparent;
  transition: background var(--transition), color var(--transition),
              border-color var(--transition), box-shadow var(--transition);
  white-space: nowrap;
  font-family: var(--font-body);
}
.btn-primary {
  background: var(--accent);
  color: var(--bg);
  border-color: var(--accent);
}
.btn-primary:hover {
  background: var(--accent-dark);
  border-color: var(--accent-dark);
  box-shadow: 0 4px 16px rgba(42,166,164,0.35);
}
.btn-outline {
  background: transparent;
  color: var(--accent);
  border-color: var(--accent);
}
.btn-outline:hover {
  background: var(--accent);
  color: var(--bg);
}
.btn-ghost-light {
  background: rgba(255,255,255,0.06);
  color: var(--text);
  border-color: rgba(255,255,255,0.18);
}
.btn-ghost-light:hover {
  background: rgba(255,255,255,0.12);
  border-color: rgba(255,255,255,0.35);
}
.btn-lg {
  padding: 0.875rem 2rem;
  font-size: 1rem;
}
.btn-sm {
  padding: 0.45rem 1rem;
  font-size: 0.85rem;
}

/* ── Card ──────────────────────────────────────────────────── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  transition: box-shadow var(--transition), transform var(--transition),
              border-color var(--transition);
}
.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
  border-color: rgba(42,166,164,0.3);
}
.card-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius);
  background: rgba(42,166,164,0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
  color: var(--accent);
  flex-shrink: 0;
}
.card-icon svg { width: 22px; height: 22px; stroke: currentColor; fill: none; stroke-width: 1.75; }
.card h3 { margin-bottom: 0.5rem; }
.card p  { font-size: 0.925rem; }

.card--accent-border {
  border-left: 3px solid var(--accent-3);
}

/* ── Badge / Pill ──────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.3rem 0.75rem;
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 500;
  font-family: var(--font-body);
}
.badge-navy  { background: rgba(42,166,164,0.12);  color: var(--accent);   border: 1px solid rgba(42,166,164,0.22); }
.badge-teal  { background: rgba(95,175,214,0.12);  color: var(--accent-2); border: 1px solid rgba(95,175,214,0.22); }
.badge-brass { background: rgba(183,138,59,0.12);  color: var(--accent-3); border: 1px solid rgba(183,138,59,0.22); }
.badge-dark  { background: rgba(255,255,255,0.07); color: var(--text);     border: 1px solid rgba(255,255,255,0.14); }

/* ── Divider ───────────────────────────────────────────────── */
.divider {
  width: 48px;
  height: 3px;
  background: var(--accent-3);
  border-radius: 2px;
  margin: 1rem 0 1.5rem;
}
.centered .divider { margin: 1rem auto 1.5rem; }

/* ── Navbar ────────────────────────────────────────────────── */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--nav-h);
  background: rgba(11,18,32,0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.navbar.scrolled {
  border-bottom-color: var(--border);
  box-shadow: 0 1px 24px rgba(0,0,0,0.5);
}
.navbar .container {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

/* Logo */
.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--text);
  flex-shrink: 0;
}
.nav-logo-icon-wrap {
  height: 46px;
  overflow: hidden;
  flex-shrink: 0;
}
.nav-logo-img {
  height: 64px; /* renders taller than wrapper; overflow clips bottom ~28% (the text) */
  width: auto;
  display: block;
  mix-blend-mode: lighten;
  filter: saturate(0.85) hue-rotate(-8deg);
}
.nav-logo-footer-img {
  height: 60px;
  width: auto;
  mix-blend-mode: lighten;
  filter: saturate(0.85) hue-rotate(-8deg);
}
/* Legacy mark retained for fallback only */
.nav-logo-mark {
  width: 34px;
  height: 34px;
  background: var(--accent);
  border-radius: 7px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--bg);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  flex-shrink: 0;
  font-family: var(--font-display);
}
.nav-logo-text { color: var(--text); }
.nav-logo-text span { color: var(--accent); }

/* Philosophy section tagline */
.philosophy-tagline {
  text-align: center;
  margin: 0 auto 2.5rem;
  max-width: 680px;
  padding: 1.5rem 2rem;
  border-top: 1px solid rgba(42,166,164,0.25);
  border-bottom: 1px solid rgba(42,166,164,0.25);
}
.philosophy-tagline p {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 500;
  font-style: italic;
  color: var(--accent-2);
  letter-spacing: -0.01em;
  line-height: 1.55;
  margin: 0;
}

/* Nav links */
.nav-menu {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  flex: 1;
}
.nav-link {
  padding: 0.45rem 0.85rem;
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color var(--transition), background var(--transition);
}
.nav-link:hover,
.nav-link.active {
  color: var(--text);
  background: rgba(255,255,255,0.06);
}
.nav-cta {
  margin-left: auto;
  flex-shrink: 0;
}

/* Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  background: none;
  border: none;
  padding: 4px;
  border-radius: var(--radius);
}
.nav-toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--text);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}
.nav-toggle.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; }
.nav-toggle.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── Page offset for fixed nav ─────────────────────────────── */
.page-body { padding-top: var(--nav-h); }

/* ── Hero ──────────────────────────────────────────────────── */
.hero {
  position: relative;
  background: var(--bg);
  overflow: hidden;
  padding: 6rem 0 5rem;
  border-bottom: 1px solid var(--border);
}

/* Subtle coordinate grid overlay */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(43,56,80,0.45) 1px, transparent 1px),
    linear-gradient(90deg, rgba(43,56,80,0.45) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
}

/* Teal accent glow top-right */
.hero::after {
  content: '';
  position: absolute;
  top: -120px;
  right: -120px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(42,166,164,0.07) 0%, transparent 70%);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}
.hero-badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}
.hero h1 {
  color: var(--text);
  margin-bottom: 1.25rem;
}
.hero h1 em {
  font-style: normal;
  color: var(--accent);
}
.hero .lead {
  color: var(--text-muted);
  margin-bottom: 2rem;
  max-width: 520px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
}

/* Hero graphic — vector trajectory panel */
.hero-graphic {
  display: flex;
  justify-content: flex-end;
  align-items: center;
}
.hero-graphic svg {
  width: min(340px, 100%);
  opacity: 0.75;
}

/* ── Trust Bar ─────────────────────────────────────────────── */
.trust-bar {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 1.25rem 0;
}
.trust-bar .container {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}
.trust-bar-label {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  white-space: nowrap;
  margin-right: 0.5rem;
}
.trust-bar-items {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

/* ── Process Steps ─────────────────────────────────────────── */
.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1.5rem;
  counter-reset: step;
}
.step {
  text-align: center;
  padding: 1.5rem 1rem;
}
.step-num {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(42,166,164,0.10);
  border: 1px solid rgba(42,166,164,0.25);
  color: var(--accent);
  font-size: 1.1rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1rem;
  font-family: var(--font-display);
}
.step h3 { margin-bottom: 0.4rem; font-size: 1rem; }
.step p   { font-size: 0.875rem; }

/* ── Security Section specifics ────────────────────────────── */
.security-features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.25rem;
  margin-top: 2.5rem;
}
.security-feature {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}
.security-feature-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius);
  background: rgba(183,138,59,0.12);
  border: 1px solid rgba(183,138,59,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--accent-3);
}
.security-feature-icon svg { width: 20px; height: 20px; stroke: currentColor; fill: none; stroke-width: 1.75; }
.security-feature h4 { color: var(--text); margin-bottom: 0.25rem; font-size: 0.95rem; }
.security-feature p  { font-size: 0.875rem; color: var(--text-muted); }

/* ── CTA Banner ────────────────────────────────────────────── */
.cta-banner {
  background: var(--surface-elevated);
  border-top: 1px solid var(--border);
  padding: 4rem 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(43,56,80,0.5) 1px, transparent 1px),
    linear-gradient(90deg, rgba(43,56,80,0.5) 1px, transparent 1px);
  background-size: 40px 40px;
}
.cta-banner::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 300px;
  background: radial-gradient(ellipse, rgba(42,166,164,0.07) 0%, transparent 70%);
  pointer-events: none;
}
.cta-banner .container { position: relative; z-index: 1; }
.cta-banner h2 { color: var(--text); margin-bottom: 0.75rem; }
.cta-banner p  { color: var(--text-muted); margin-bottom: 2rem; font-size: 1.05rem; }
.cta-actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.75rem;
}

/* ── Page Hero (interior pages) ────────────────────────────── */
.page-hero {
  background: var(--surface);
  padding: 3.5rem 0;
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--border);
}
.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(43,56,80,0.5) 1px, transparent 1px),
    linear-gradient(90deg, rgba(43,56,80,0.5) 1px, transparent 1px);
  background-size: 40px 40px;
}
.page-hero::after {
  content: '';
  position: absolute;
  top: -80px;
  right: -80px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(42,166,164,0.08) 0%, transparent 70%);
  pointer-events: none;
}
.page-hero .container { position: relative; z-index: 1; }
.page-hero h1 { color: var(--text); font-size: clamp(1.75rem, 4vw, 2.75rem); margin-bottom: 0.75rem; }
.page-hero p  { color: var(--text-muted); font-size: 1.05rem; max-width: 580px; }

/* ── Tech Stack (capabilities page) ───────────────────────── */
.tech-stack {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.25rem;
}
.tech-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
}
.tech-card h4 {
  color: var(--accent);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.875rem;
  font-family: var(--font-body);
}
.tech-list {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.tech-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  color: var(--text-muted);
}
.tech-item::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-2);
  flex-shrink: 0;
}

/* ── Form Styles ───────────────────────────────────────────── */
.form-section {
  display: grid;
  grid-template-columns: 5fr 3fr;
  gap: 3rem;
  align-items: start;
}

.form-card {
  background: var(--surface-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  box-shadow: var(--shadow-md);
}

.form-group {
  margin-bottom: 1.25rem;
}
.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text);
  margin-bottom: 0.4rem;
}
.form-group label .required {
  color: var(--danger);
  margin-left: 2px;
}
.form-control {
  width: 100%;
  padding: 0.625rem 0.875rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg);
  color: var(--text);
  font-size: 0.925rem;
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}
.form-control::placeholder { color: var(--text-muted); opacity: 0.55; }
.form-control:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(42,166,164,0.15);
  background: var(--surface);
}
textarea.form-control {
  resize: vertical;
  min-height: 100px;
}
select.form-control {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%239AA8BD' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  padding-right: 2.5rem;
}

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

.checkbox-group {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
  margin-top: 0.25rem;
}
.checkbox-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--text-muted);
}
.checkbox-item input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--accent);
  flex-shrink: 0;
}

.form-fieldset {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  margin-bottom: 1.25rem;
}
.form-fieldset legend {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
  padding: 0 0.5rem;
  margin-left: -0.5rem;
}

.form-hint {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 0.3rem;
}

/* Form status messages */
.form-message {
  display: none;
  padding: 1rem 1.25rem;
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 500;
  margin-top: 1.25rem;
}
.form-message.success {
  background: rgba(34,197,94,0.10);
  color: var(--success);
  border: 1px solid rgba(34,197,94,0.25);
  display: block;
}
.form-message.error {
  background: rgba(239,68,68,0.10);
  color: var(--danger);
  border: 1px solid rgba(239,68,68,0.25);
  display: block;
}

.form-submit-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-top: 1.75rem;
}
.form-submit-note {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* Contact sidebar */
.contact-sidebar {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}
.contact-sidebar-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
}
.contact-sidebar-card h4 {
  margin-bottom: 0.75rem;
  font-size: 1rem;
}
.contact-sidebar-card p {
  font-size: 0.875rem;
  line-height: 1.7;
}
.contact-detail {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
  font-size: 0.9rem;
  color: var(--text-muted);
}
.contact-detail-icon {
  width: 32px;
  height: 32px;
  border-radius: var(--radius);
  background: rgba(42,166,164,0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  flex-shrink: 0;
}
.contact-detail-icon svg { width: 16px; height: 16px; stroke: currentColor; fill: none; stroke-width: 2; }

/* ── Credentials / Timeline list ───────────────────────────── */
.credential-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.credential-item {
  display: flex;
  align-items: flex-start;
  gap: 0.875rem;
}
.credential-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-3);
  margin-top: 0.45rem;
  flex-shrink: 0;
}
.credential-item p {
  font-size: 0.925rem;
  color: var(--text);
}
.credential-item p span {
  display: block;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 0.15rem;
}

/* ── Values (about page) ───────────────────────────────────── */
.values-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}
.value-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  border-top: 3px solid var(--accent-3);
}
.value-card h3 { margin-bottom: 0.5rem; color: var(--accent); }
.value-card p  { font-size: 0.925rem; }

/* ── Footer ────────────────────────────────────────────────── */
.footer {
  background: var(--surface-elevated);
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  padding: 3.5rem 0 2rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 2.5rem;
}
.footer-brand .nav-logo { margin-bottom: 1rem; }
.footer-brand p { font-size: 0.875rem; line-height: 1.7; max-width: 280px; }
.footer-col h5 {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: rgba(232,238,247,0.35);
  margin-bottom: 1rem;
}
.footer-col ul { display: flex; flex-direction: column; gap: 0.5rem; }
.footer-col a {
  font-size: 0.875rem;
  color: var(--text-muted);
  transition: color var(--transition);
}
.footer-col a:hover { color: var(--text); }
.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem;
  font-size: 0.8rem;
  color: var(--text-muted);
}
.footer-bottom a {
  color: var(--text-muted);
  transition: color var(--transition);
}
.footer-bottom a:hover { color: var(--text); }

/* ── Responsive ────────────────────────────────────────────── */
@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-graphic { display: none; }
  .form-section { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 680px) {
  .nav-menu {
    display: none;
    position: fixed;
    top: var(--nav-h);
    left: 0;
    right: 0;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    padding: 1rem var(--px) 1.5rem;
    align-items: stretch;
    gap: 0.25rem;
    box-shadow: var(--shadow-md);
  }
  .nav-menu.is-open { display: flex; }
  .nav-cta { margin-left: 0; width: 100%; }
  .nav-cta .btn { width: 100%; justify-content: center; margin-top: 0.5rem; }
  .nav-toggle { display: flex; }
  .form-row { grid-template-columns: 1fr; }
  .checkbox-group { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .section { padding: 3.5rem 0; }
  .hero { padding: 4rem 0 3.5rem; }
}