/* =========================================================
   Theme tokens — default DARK, optional LIGHT
   ========================================================= */

:root,
html[data-theme="dark"] {
  color-scheme: dark;
  --ink: #e8f1f7;
  --ink-soft: #c5d6e3;
  --paper: #071018;
  --paper-2: #0c1824;
  --surface: rgba(18, 34, 50, 0.72);
  --surface-solid: #122232;
  --muted: #8ea4b5;
  --line: rgba(232, 241, 247, 0.12);
  --accent: #2a9be0;
  --accent-2: #0383d3;
  --accent-deep: #a8d8f5;
  --sand: #f0c56d;
  --glow: rgba(42, 155, 224, 0.28);
  --shadow: 0 30px 80px rgba(0, 0, 0, 0.45);
  --shadow-soft: 0 18px 50px rgba(0, 0, 0, 0.28);
  --header-bg: rgba(7, 16, 24, 0.72);
  --header-bg-scroll: rgba(7, 16, 24, 0.9);
  --card-bg: linear-gradient(145deg, rgba(18, 34, 50, 0.92), rgba(12, 24, 36, 0.78));
  --card-border: rgba(255, 255, 255, 0.08);
  --hero-panel: linear-gradient(160deg, #0a1520, #0a4a7a 55%, #0383d3);
  --stats-bg: linear-gradient(145deg, #040a10, #0a3048 55%, #025a94);
  --footer-bg: linear-gradient(180deg, #040a10, #02060a);
  --heading-grad: linear-gradient(135deg, #ffffff 15%, #a8d8f5 70%, #2a9be0 100%);
  --body-bg:
    radial-gradient(900px 520px at 8% -5%, rgba(3, 131, 211, 0.18), transparent 55%),
    radial-gradient(800px 480px at 95% 5%, rgba(240, 197, 109, 0.1), transparent 50%),
    radial-gradient(700px 500px at 50% 40%, rgba(42, 155, 224, 0.06), transparent 60%),
    linear-gradient(180deg, #071018 0%, #0a1520 45%, #071018 100%);
  --grid-line: rgba(232, 241, 247, 0.04);
  --logo-filter: brightness(0) invert(1);
  --theme-toggle-bg: rgba(255, 255, 255, 0.08);
  --theme-toggle-border: rgba(255, 255, 255, 0.14);
}

html[data-theme="light"] {
  color-scheme: light;
  --ink: #071018;
  --ink-soft: #123040;
  --paper: #eef2f6;
  --paper-2: #dde5ec;
  --surface: rgba(255, 255, 255, 0.78);
  --surface-solid: #ffffff;
  --muted: #4f6170;
  --line: rgba(7, 16, 24, 0.1);
  --accent: #0383d3;
  --accent-2: #2a9be0;
  --accent-deep: #0266a6;
  --sand: #f0c56d;
  --glow: rgba(3, 131, 211, 0.35);
  --shadow: 0 30px 80px rgba(7, 16, 24, 0.14);
  --shadow-soft: 0 18px 50px rgba(7, 16, 24, 0.08);
  --header-bg: rgba(238, 242, 246, 0.55);
  --header-bg-scroll: rgba(255, 255, 255, 0.72);
  --card-bg: linear-gradient(145deg, rgba(255, 255, 255, 0.88), rgba(255, 255, 255, 0.62));
  --card-border: rgba(255, 255, 255, 0.7);
  --hero-panel: linear-gradient(160deg, rgba(7, 16, 24, 0.96), #0a4a7a 55%, #0383d3);
  --stats-bg: linear-gradient(145deg, #071018, #0a3048 55%, #025a94);
  --footer-bg: linear-gradient(180deg, #071018, #040a10);
  --heading-grad: linear-gradient(135deg, #071018 20%, #0266a6 55%, #0266a6 100%);
  --body-bg:
    radial-gradient(900px 520px at 8% -5%, rgba(3, 131, 211, 0.18), transparent 55%),
    radial-gradient(800px 480px at 95% 5%, rgba(240, 197, 109, 0.2), transparent 50%),
    radial-gradient(700px 500px at 50% 40%, rgba(42, 155, 224, 0.06), transparent 60%),
    linear-gradient(180deg, #f5f7f9 0%, #e8eef3 40%, #f3f5f7 100%);
  --grid-line: rgba(7, 16, 24, 0.03);
  --logo-filter: none;
  --theme-toggle-bg: rgba(7, 16, 24, 0.06);
  --theme-toggle-border: rgba(7, 16, 24, 0.12);
}

body {
  color: var(--ink);
  background: var(--body-bg) !important;
  background-attachment: fixed !important;
}

body::before {
  opacity: 0.5;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px) !important;
}

.site-header {
  background: var(--header-bg) !important;
}

.site-header.is-scrolled {
  background: var(--header-bg-scroll) !important;
}

.brand-logo {
  filter: none !important;
}

.brand-logo-dark {
  display: block !important;
}

.brand-logo-light {
  display: none !important;
}

html[data-theme="light"] .brand-logo-dark {
  display: none !important;
}

html[data-theme="light"] .brand-logo-light {
  display: block !important;
}

.brand-logo-footer {
  filter: none !important;
  display: block !important;
}

h1, h2 {
  background: var(--heading-grad) !important;
  -webkit-background-clip: text !important;
  background-clip: text !important;
  color: transparent !important;
}

.site-nav a {
  color: var(--ink-soft) !important;
}

.site-nav a:hover,
.site-nav a.is-active {
  color: var(--accent) !important;
}

.nav-toggle {
  background: var(--theme-toggle-bg);
  border-color: var(--theme-toggle-border);
}

.nav-toggle span:not(.sr-only) {
  background: var(--ink);
}

.pillar,
.service-block,
.case-card,
.engage-card,
.blog-card,
.feature-block,
.testimonial,
.contact-aside,
.service-detail-panel,
.faq-item,
.pin-process > div,
.slide,
.pin-quote {
  background: var(--card-bg) !important;
  border-color: var(--card-border) !important;
  color: var(--ink);
}

.pillar p,
.service-block p,
.case-card p,
.lede,
.micro-note,
.check-list li,
.service-block li,
.stat-label,
.pin-panel > p:not(.eyebrow):not(.case-result) {
  color: var(--muted) !important;
}

.btn-ghost {
  background: var(--theme-toggle-bg) !important;
  border-color: var(--theme-toggle-border) !important;
  color: var(--ink) !important;
}

.trust-row li {
  background: var(--theme-toggle-bg) !important;
  border-color: var(--theme-toggle-border) !important;
  color: var(--ink-soft) !important;
}

.hero-panel {
  background: var(--hero-panel) !important;
}

.stats-grid {
  background:
    radial-gradient(600px 240px at 20% 0%, rgba(3, 131, 211, 0.28), transparent 55%),
    var(--stats-bg) !important;
}

.site-footer {
  background: var(--footer-bg) !important;
}

.section-alt {
  background: linear-gradient(180deg, transparent, color-mix(in srgb, var(--paper-2) 70%, transparent)) !important;
}

.marquee {
  background: linear-gradient(
    90deg,
    rgba(3, 131, 211, 0.1),
    color-mix(in srgb, var(--surface-solid) 40%, transparent),
    rgba(240, 197, 109, 0.1)
  ) !important;
  border-color: var(--line) !important;
  color: var(--ink);
}

.tag-row span,
.industry-cloud span,
.provider-row span {
  background: var(--theme-toggle-bg) !important;
  border-color: var(--theme-toggle-border) !important;
  color: var(--ink-soft) !important;
}

.cta-band-inner {
  background:
    radial-gradient(500px 200px at 10% 50%, rgba(3, 131, 211, 0.18), transparent 60%),
    var(--card-bg) !important;
  border: 1px solid var(--line) !important;
  padding: 2rem 1.75rem !important;
  border-radius: var(--radius) !important;
}

.scroll-pin {
  background:
    radial-gradient(800px 500px at 80% 30%, rgba(3, 131, 211, 0.14), transparent 50%),
    var(--body-bg) !important;
}

.scroll-pin-dark {
  background:
    radial-gradient(800px 480px at 80% 20%, rgba(3, 131, 211, 0.22), transparent 55%),
    linear-gradient(180deg, #040a10, #0c1824 50%, #071018) !important;
}

html[data-theme="light"] .scroll-pin-dark .pin-panel h2 {
  background: linear-gradient(135deg, #fff 10%, #a8d8f5 90%) !important;
  -webkit-background-clip: text !important;
  background-clip: text !important;
}

html[data-theme="dark"] .scroll-pin-dark .pin-panel h2,
html:not([data-theme="light"]) .scroll-pin-dark .pin-panel h2 {
  background: linear-gradient(135deg, #fff 10%, #a8d8f5 90%) !important;
  -webkit-background-clip: text !important;
  background-clip: text !important;
}

.pin-step {
  color: var(--muted);
}

.pin-step.is-active {
  color: var(--ink) !important;
  background: var(--theme-toggle-bg) !important;
  border: 1px solid var(--theme-toggle-border);
}

.pin-bar {
  background: var(--line) !important;
}

.form-banner,
input, select, textarea {
  background: var(--surface-solid) !important;
  color: var(--ink) !important;
  border-color: var(--line) !important;
}

.contact-form label,
.field label {
  color: var(--ink);
}

.spotlight {
  mix-blend-mode: screen;
  background: radial-gradient(circle, rgba(42, 155, 224, 0.12), transparent 65%) !important;
}

html[data-theme="light"] .spotlight {
  mix-blend-mode: multiply;
  background: radial-gradient(circle, rgba(3, 131, 211, 0.14), transparent 65%) !important;
}

/* Theme toggle */
.theme-toggle {
  appearance: none;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  border: 1px solid var(--theme-toggle-border);
  background: var(--theme-toggle-bg);
  color: var(--ink);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

.theme-toggle:hover {
  transform: translateY(-1px);
  border-color: var(--accent);
}

.theme-toggle svg {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.theme-toggle .icon-sun { display: none; }
.theme-toggle .icon-moon { display: block; }

html[data-theme="light"] .theme-toggle .icon-sun { display: block; }
html[data-theme="light"] .theme-toggle .icon-moon { display: none; }

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

@media (max-width: 760px) {
  .header-actions {
    margin-left: auto;
    margin-right: 0.5rem;
  }
}