/* virtualno360 — redesign 2026
   Editorial-tech hybrid: Instrument Serif display, Geist UI, JetBrains Mono labels
   ----------------------------------------------------------------------------- */

:root {
  /* Palette — set by Tweaks at runtime via inline style on :root */
  --ink: #0B0B0C;
  --ink-2: #16161A;
  --ink-3: #1F1F24;
  --line-dark: rgba(242, 237, 227, 0.12);

  --cream: #FFFFFF;
  --cream-2: #F5F3EE;
  --bone: #FAFAF8;
  --line-cream: rgba(11, 11, 12, 0.08);

  --fg-on-dark: #F5F3EE;
  --fg-on-dark-2: rgba(245, 243, 238, 0.62);
  --fg-on-dark-3: rgba(245, 243, 238, 0.42);

  --fg-on-cream: #0E0E10;
  --fg-on-cream-2: rgba(14, 14, 16, 0.64);
  --fg-on-cream-3: rgba(14, 14, 16, 0.44);

  /* Accent — virtualno360 brand red (primary), with yellow + green secondaries */
  --accent: #E63946;
  --accent-ink: #FFFFFF;
  --brand-red: #E63946;
  --brand-yellow: #F5B400;
  --brand-green: #6BBE45;

  /* Semantic — DEFAULT: pure white */
  --bg: #FFFFFF;
  --fg: var(--fg-on-cream);
  --fg-2: var(--fg-on-cream-2);
  --fg-3: var(--fg-on-cream-3);
  --line: var(--line-cream);
  --surface-2: var(--bone);
  --surface-3: var(--cream-2);

  /* Type — Poppins (matches current site) + DM Serif Display for editorial */
  --serif: 'DM Serif Display', 'Iowan Old Style', 'Times New Roman', serif;
  --sans: 'Poppins', ui-sans-serif, system-ui, -apple-system, 'Segoe UI', sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, monospace;

  --container: 1320px;
  --pad: clamp(20px, 4vw, 56px);

  /* Type */
  --serif: 'Source Sans Pro', ui-sans-serif, system-ui, sans-serif;
  --sans: 'Source Sans Pro', ui-sans-serif, system-ui, -apple-system, 'Segoe UI', sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, monospace;

  --container: 1320px;
  --pad: clamp(20px, 4vw, 56px);
}

html[data-theme="dark"] {
  --bg: var(--ink);
  --fg: var(--fg-on-dark);
  --fg-2: var(--fg-on-dark-2);
  --fg-3: var(--fg-on-dark-3);
  --line: var(--line-dark);
  --surface-2: var(--ink-2);
  --surface-3: var(--ink-3);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { background: var(--bg); }
body {
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.5;
  color: var(--fg);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: 'ss01', 'cv11';
  letter-spacing: -0.005em;
}

a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; }

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

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

.section { padding-block: clamp(80px, 10vw, 160px); position: relative; }
.section--cream { background: var(--cream); color: var(--fg-on-cream); }
.section--ink   {
  background: var(--ink); color: var(--fg-on-dark);
  --surface-2: var(--ink-2);
  --fg: var(--fg-on-dark);
  --fg-2: var(--fg-on-dark-2);
  --fg-3: var(--fg-on-dark-3);
}
.section--bone  { background: var(--bone); color: var(--fg-on-cream); }
.section--surface { background: var(--surface-2); }

/* ──────────────────────────────────────────── Type */
.eyebrow {
  font-family: var(--serif);
  font-style: italic;
  font-size: 17px;
  font-weight: 400;
  letter-spacing: 0;
  text-transform: none;
  color: var(--fg-2);
  display: inline-flex;
  align-items: center;
  gap: 12px;
}
.eyebrow .dot {
  width: 24px; height: 1px; border-radius: 0;
  background: var(--accent);
  box-shadow: none;
  flex-shrink: 0;
}
.eyebrow--accent { color: var(--accent); }
.eyebrow--accent .dot { background: var(--accent); }

.display {
  font-family: var(--sans);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.02;
  margin: 0;
  text-wrap: balance;
}
.display em { font-style: normal; font-weight: 700; color: var(--accent); }
.display .underline { text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 0.18em; text-decoration-color: var(--fg-3); }

.h1 { font-size: clamp(56px, 9vw, 132px); }
.h2 { font-size: clamp(40px, 5.6vw, 88px); }
.h3 { font-size: clamp(28px, 3.4vw, 52px); }
.h4 { font-size: clamp(22px, 2.4vw, 34px); }

.lede {
  font-family: var(--sans);
  font-size: clamp(16px, 1.4vw, 20px);
  line-height: 1.5;
  color: var(--fg-2);
  max-width: 56ch;
  text-wrap: pretty;
  margin: 0;
}

.mono { font-family: var(--mono); font-size: 12px; letter-spacing: 0.04em; }
.smallcaps {
  font-family: var(--sans);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--fg-3);
}

/* ──────────────────────────────────────────── Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 22px;
  border-radius: 999px;
  font-family: var(--sans);
  font-weight: 500;
  font-size: 15px;
  letter-spacing: -0.005em;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .25s ease, background .2s, color .2s, border-color .2s;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn--primary {
  background: var(--accent);
  color: var(--accent-ink);
  border-color: var(--accent);
}
.btn--primary:hover { background: color-mix(in oklch, var(--accent) 90%, white); }

.btn--ghost-light {
  background: transparent;
  color: var(--fg-on-dark);
  border-color: rgba(242, 237, 227, 0.22);
}
.btn--ghost-light:hover { background: rgba(242, 237, 227, 0.06); border-color: rgba(242, 237, 227, 0.5); }

.btn--ghost-dark {
  background: transparent;
  color: var(--fg-on-cream);
  border-color: rgba(11, 11, 12, 0.18);
}
.btn--ghost-dark:hover { background: rgba(11, 11, 12, 0.04); border-color: rgba(11, 11, 12, 0.5); }

.btn--small { padding: 9px 14px; font-size: 13px; }

.btn .arrow { transition: transform .25s ease; }
.btn:hover .arrow { transform: translateX(3px); }

/* ──────────────────────────────────────────── Cards / surfaces */
.card {
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--surface-2);
  padding: 28px;
}

/* ──────────────────────────────────────────── Misc */
.hr { height: 1px; background: var(--line); border: 0; margin: 0; }

.grid-bg {
  background-image:
    linear-gradient(to right, var(--line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--line) 1px, transparent 1px);
  background-size: 80px 80px;
}

/* Anim */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(18px); }
  to   { opacity: 1; transform: translateY(0); }
}
.fade-in { animation: fadeUp .8s cubic-bezier(.2,.7,.2,1) both; }

@keyframes marquee {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}
.marquee {
  display: flex;
  width: max-content;
  animation: marquee 38s linear infinite;
}

@keyframes pulseDot {
  0%,100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.4); opacity: 0.55; }
}

@keyframes panoRotate {
  from { background-position: 0 center; }
  to   { background-position: -2400px center; }
}
.pulse-dot { animation: pulseDot 1.8s ease-in-out infinite; }

@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

/* Tooltip-like floating chip */
.chip {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 5px 10px;
  border-radius: 999px;
  font-family: var(--serif);
  font-style: italic;
  font-size: 14px;
  letter-spacing: 0;
  background: color-mix(in oklch, var(--fg) 6%, transparent);
  border: 1px solid var(--line);
  color: var(--fg-2);
}
.chip--accent {
  background: color-mix(in oklch, var(--accent) 14%, transparent);
  color: var(--accent);
  border-color: color-mix(in oklch, var(--accent) 30%, transparent);
}

/* Number marquee tape */
.tape {
  display: flex;
  align-items: center;
  gap: 40px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 16px 0;
  overflow: hidden;
}
.tape__item {
  display: inline-flex; align-items: center; gap: 14px;
  font-family: var(--serif);
  font-style: italic;
  font-size: 22px;
  letter-spacing: 0;
  color: var(--fg-2);
  white-space: nowrap;
}

/* Focus */
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 4px; }

/* Reduce motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

/* ──────────────────────────────────────────── Responsive */

/* Collapse explicit fluid two/three-column grids (those that start with minmax(0…)).
   Auto-fit/repeat grids and fixed-track grids (px tracks) are left to reflow naturally. */
@media (max-width: 880px) {
  [style*="grid-template-columns: minmax(0"] {
    grid-template-columns: 1fr !important;
    gap: clamp(28px, 6vw, 40px) !important;
  }
  /* Sticky side-columns shouldn't pin on mobile — they sit above their content */
  [style*="position: sticky"] { position: static !important; top: auto !important; }
  .section { padding-block: clamp(56px, 13vw, 96px) !important; }
}

/* Navigation: swap desktop links for the hamburger drawer */
@media (max-width: 820px) {
  .nav-desktop, .shell-nav-links { display: none !important; }
  .nav-mobile-toggle, .shell-nav-toggle { display: inline-flex !important; }
}

@media (max-width: 600px) {
  :root { --pad: 18px; }
  .h1 { font-size: clamp(40px, 13vw, 68px) !important; }
  .h2 { font-size: clamp(30px, 9vw, 48px) !important; }
  .h3 { font-size: clamp(24px, 6.5vw, 38px) !important; }
  .nav-book-cta { display: none !important; }
  /* Two-up button rows wrap cleanly */
  .btn { width: auto; }
}

/* Comfortable tap targets on touch devices */
@media (hover: none) and (pointer: coarse) {
  .btn { min-height: 46px; }
  a, button { -webkit-tap-highlight-color: transparent; }
}