/* =============================================================================
   Demand AI — component styles
   -----------------------------------------------------------------------------
   Single stylesheet for every component in this design system. Do not link this
   file directly — link the root `styles.css`, which @imports the tokens first
   and then this file:

       <link rel="stylesheet" href="/styles.css">

   Notes
   -----
   * Every class is prefixed `dai-` and every custom property `--dai-`.
   * No `!important`. (The website needs it to beat WordPress/BlockArt; a
     standalone system does not — keep it that way.)
   * Motion is guarded by `prefers-reduced-motion` at the bottom of the file.
   ============================================================================= */

/* -----------------------------------------------------------------------------
   Root — opt-in base styling. Put `dai-root` on <body> or your app wrapper.
   -------------------------------------------------------------------------- */
.dai-root {
  font-family: var(--dai-font-sans);
  font-size: var(--dai-text-body);
  line-height: var(--dai-leading-body);
  color: var(--dai-text);
  background: var(--dai-surface);
  -webkit-font-smoothing: antialiased;
  -webkit-text-size-adjust: 100%;
}
.dai-root *,
.dai-root *::before,
.dai-root *::after { box-sizing: border-box; }

.dai-root img,
.dai-root svg { display: block; max-width: 100%; }

.dai-root :focus-visible {
  outline: 2px solid var(--dai-brand);
  outline-offset: 3px;
  border-radius: var(--dai-radius-xs);
}

/* Screen-reader-only utility */
.dai-sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* -----------------------------------------------------------------------------
   Container
   -------------------------------------------------------------------------- */
.dai-container {
  width: 100%;
  max-width: var(--dai-container);
  margin-inline: auto;
  padding-inline: var(--dai-gutter);
}
.dai-container--narrow { max-width: 760px; }
.dai-container--wide   { max-width: 1240px; }
.dai-container--flush  { padding-inline: 0; }

/* -----------------------------------------------------------------------------
   Split — the site's two-column band (copy beside a visual, or beside a form).
   Collapses to one column at 860px. `--media` gives the second column more room.
   -------------------------------------------------------------------------- */
.dai-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(32px, 5vw, 56px);
  align-items: center;
}
.dai-split--media  { grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr); }
.dai-split--copy   { grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); }
.dai-split--top    { align-items: start; }
@media (max-width: 860px) {
  .dai-split,
  .dai-split--media,
  .dai-split--copy { grid-template-columns: 1fr; gap: clamp(28px, 5vw, 40px); }
}

/* -----------------------------------------------------------------------------
   Section
   -------------------------------------------------------------------------- */
.dai-section {
  position: relative;
  padding-block: var(--dai-section-y);
  color: var(--dai-text);
  isolation: isolate;
}
.dai-section--tight { padding-block: var(--dai-section-y-sm); }

.dai-section--soft {
  background:
    radial-gradient(1100px 600px at 15% -10%, var(--dai-brand-tint) 0, rgba(235, 243, 243, 0) 60%),
    radial-gradient(900px 500px at 110% 20%, var(--dai-brand-tint) 0, rgba(235, 243, 243, 0) 55%),
    var(--dai-brand-wash);
}
.dai-section--tint { background: var(--dai-brand-tint); }
.dai-section--night {
  color: var(--dai-on-night);
  background:
    radial-gradient(900px 500px at 10% 0%, rgba(105, 167, 167, 0.22), transparent 60%),
    radial-gradient(700px 500px at 110% 100%, rgba(32, 125, 127, 0.4), transparent 55%),
    var(--dai-surface-night);
}
.dai-section--night .dai-heading,
.dai-section--night .dai-display { color: var(--dai-white); }
.dai-section--night .dai-lede,
.dai-section--night .dai-section-head__sub { color: var(--dai-on-night-muted); }

.dai-section--grid::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(5, 110, 110, 0.06) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(5, 110, 110, 0.06) 1px, transparent 1px);
  background-size: 48px 48px;
  -webkit-mask-image: radial-gradient(ellipse at 50% 30%, #000 40%, transparent 75%);
  mask-image: radial-gradient(ellipse at 50% 30%, #000 40%, transparent 75%);
  opacity: 0.6;
}
.dai-section--night.dai-section--grid::before {
  background-image:
    linear-gradient(to right, rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: radial-gradient(ellipse at 50% 50%, #000 30%, transparent 80%);
  mask-image: radial-gradient(ellipse at 50% 50%, #000 30%, transparent 80%);
  opacity: 1;
}

.dai-section--flow::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: clamp(80px, 12vh, 180px);
  z-index: -1;
  pointer-events: none;
  background: linear-gradient(
    180deg,
    var(--dai-flow-from, rgba(255, 255, 255, 0)) 0%,
    var(--dai-flow-to, var(--dai-surface)) 100%
  );
}

.dai-section--glow,
.dai-section:has(> .dai-section__glow) { overflow: hidden; }

.dai-section__glow {
  position: absolute;
  width: 520px; height: 520px;
  border-radius: var(--dai-radius-circle);
  filter: blur(80px);
  opacity: 0.35;
  z-index: -1;
  pointer-events: none;
  background: var(--dai-brand-soft);
  animation: dai-drift 18s var(--dai-ease) infinite alternate;
}
.dai-section__glow--tl { top: -140px; left: -120px; }
.dai-section__glow--br { bottom: -160px; right: -120px; animation-delay: -6s; }
@keyframes dai-drift { to { transform: translate3d(40px, 30px, 0); } }

/* -----------------------------------------------------------------------------
   Eyebrow
   -------------------------------------------------------------------------- */
.dai-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: clamp(9px, 1.3vw, 13px);
  margin: 0;
  font-family: var(--dai-font-sans);
  font-size: clamp(9px, 1.05vw, 12px);
  font-weight: var(--dai-weight-bold);
  letter-spacing: clamp(0.12em, 0.5vw, 0.26em);
  text-transform: uppercase;
  line-height: 1;
  color: var(--dai-brand);
}
.dai-eyebrow::before {
  content: "";
  flex: 0 0 auto;
  width: clamp(22px, 3.6vw, 40px);
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, rgba(5, 110, 110, 0) 0%, rgba(105, 167, 167, 0.9) 100%);
}
.dai-eyebrow--block  { display: flex; width: fit-content; margin: 0 0 clamp(16px, 2.4vw, 22px); }
.dai-eyebrow--center { display: flex; width: fit-content; margin: 0 auto clamp(16px, 2.4vw, 22px); }
.dai-eyebrow--on-dark { color: var(--dai-on-night-accent); }
.dai-eyebrow--on-dark::before {
  background: linear-gradient(90deg, rgba(144, 191, 192, 0) 0%, rgba(144, 191, 192, 0.9) 100%);
}

/* -----------------------------------------------------------------------------
   Headings + lede
   -------------------------------------------------------------------------- */
.dai-display,
.dai-heading {
  font-family: var(--dai-font-sans);
  color: var(--dai-ink);
  margin: 0;
  text-wrap: balance;
}
.dai-display {
  font-size: var(--dai-text-display);
  line-height: var(--dai-leading-display);
  font-weight: var(--dai-weight-bold);
  letter-spacing: var(--dai-tracking-display);
}
.dai-heading--1 { font-size: var(--dai-text-h1); line-height: 1.06; font-weight: var(--dai-weight-black); letter-spacing: var(--dai-tracking-snug); }
.dai-heading--2 { font-size: var(--dai-text-h2); line-height: 1.1;  font-weight: var(--dai-weight-bold);  letter-spacing: var(--dai-tracking-tight); }
.dai-heading--3 { font-size: var(--dai-text-h3); line-height: var(--dai-leading-snug); font-weight: var(--dai-weight-bold); letter-spacing: var(--dai-tracking-snug); }
.dai-heading--4 { font-size: var(--dai-text-h4); line-height: var(--dai-leading-snug); font-weight: var(--dai-weight-semibold); letter-spacing: -0.01em; }

.dai-heading__accent {
  font-size: inherit;
  font-weight: inherit;
  font-style: normal;
  background: linear-gradient(100deg, var(--dai-brand) 0%, var(--dai-brand-mid) 50%, var(--dai-brand-strong) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.dai-section--night .dai-heading__accent {
  background: linear-gradient(100deg, var(--dai-brand-pale) 0%, var(--dai-brand-soft) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.dai-lede {
  margin: 0;
  max-width: 56ch;
  font-size: var(--dai-text-lede);
  line-height: var(--dai-leading-body);
  color: var(--dai-text-muted);
}

.dai-section-head { max-width: 720px; margin: 0 auto var(--dai-space-12); text-align: center; }
.dai-section-head--start { margin-inline: 0; text-align: left; }
.dai-section-head--start .dai-lede { margin-inline: 0; }
.dai-section-head__title { margin: var(--dai-space-4) 0 var(--dai-space-3); }
.dai-section-head__sub { margin: 0 auto; color: var(--dai-text-muted); font-size: 17px; }
.dai-section-head--start .dai-section-head__sub { margin-inline: 0; }

/* -----------------------------------------------------------------------------
   Button
   -------------------------------------------------------------------------- */
.dai-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--dai-space-3);
  padding: 17px 30px;
  font-family: var(--dai-font-sans);
  font-size: var(--dai-text-xs);
  font-weight: var(--dai-weight-semibold);
  line-height: 1;
  letter-spacing: var(--dai-tracking-wide);
  text-transform: uppercase;
  text-decoration: none;
  white-space: nowrap;
  color: var(--dai-white);
  background: var(--dai-brand);
  border: none;
  border-radius: var(--dai-radius-pill);
  box-shadow: var(--dai-shadow-brand);
  cursor: pointer;
  overflow: hidden;
  transition: transform var(--dai-dur) var(--dai-ease),
              box-shadow var(--dai-dur) var(--dai-ease),
              background-color var(--dai-dur) var(--dai-ease),
              color var(--dai-dur) var(--dai-ease),
              border-color var(--dai-dur) var(--dai-ease);
}
.dai-btn::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(100deg, transparent 35%, rgba(255, 255, 255, 0.28) 50%, transparent 65%);
  transform: translateX(-120%);
  transition: transform 0.85s var(--dai-ease);
}
.dai-btn:hover {
  transform: translateY(-2px);
  background: var(--dai-brand-strong);
  box-shadow: var(--dai-shadow-brand-hover);
}
.dai-btn:hover::after { transform: translateX(120%); }
.dai-btn:active {
  transform: translateY(0) scale(0.97);
  box-shadow: 0 8px 16px -10px rgba(5, 110, 110, 0.5), inset 0 1px 0 rgba(255, 255, 255, 0.1);
}
.dai-btn svg { width: 16px; height: 16px; transition: transform var(--dai-dur) var(--dai-ease); }
.dai-btn:hover svg { transform: translateX(5px); }

.dai-btn[disabled],
.dai-btn[aria-disabled="true"] {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.dai-btn--ghost {
  background: transparent;
  color: var(--dai-brand);
  border: 1.5px solid var(--dai-border-brand);
  box-shadow: none;
}
.dai-btn--ghost::after { display: none; }
.dai-btn--ghost:hover {
  background: var(--dai-brand);
  color: var(--dai-white);
  border-color: var(--dai-brand);
  box-shadow: 0 18px 38px -16px rgba(5, 110, 110, 0.55);
}

.dai-btn--ghost.dai-btn--on-dark {
  background: rgba(255, 255, 255, 0.04);
  color: var(--dai-on-night);
  border: 1.5px solid rgba(144, 191, 192, 0.45);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
}
.dai-btn--ghost.dai-btn--on-dark:hover {
  background: rgba(144, 191, 192, 0.14);
  border-color: var(--dai-brand-pale);
  color: var(--dai-white);
  box-shadow: none;
}

.dai-btn--sm { padding: 12px 20px; font-size: 11px; letter-spacing: 0.1em; gap: var(--dai-space-2); }
.dai-btn--lg { padding: 20px 38px; font-size: var(--dai-text-sm); }
.dai-btn--block { display: flex; width: 100%; }

.dai-btn-row { display: flex; gap: var(--dai-space-3); flex-wrap: wrap; }
.dai-btn-row--center { justify-content: center; }

/* -----------------------------------------------------------------------------
   Card
   -------------------------------------------------------------------------- */
.dai-card {
  position: relative;
  background: var(--dai-surface);
  border: 1px solid var(--dai-border);
  border-radius: var(--dai-radius-xl);
  box-shadow: var(--dai-shadow-sm);
  padding: var(--dai-space-6);
  transition: transform var(--dai-dur) var(--dai-ease),
              box-shadow var(--dai-dur) var(--dai-ease),
              border-color var(--dai-dur) var(--dai-ease);
}
.dai-card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
  background: radial-gradient(220px 100px at 20% 0%, rgba(5, 110, 110, 0.08), transparent 70%);
  opacity: 0;
  transition: opacity var(--dai-dur-slow) var(--dai-ease);
}
.dai-card > * { position: relative; }

.dai-card--interactive { cursor: pointer; }
.dai-card--interactive:hover,
.dai-card--interactive:focus-within {
  transform: translateY(-3px);
  border-color: var(--dai-brand-soft);
  box-shadow: var(--dai-shadow);
}
.dai-card--interactive:hover::before,
.dai-card--interactive:focus-within::before { opacity: 1; }

.dai-card__title {
  margin: 0 0 var(--dai-space-2);
  font-family: var(--dai-font-sans);
  font-size: var(--dai-text-h4);
  font-weight: var(--dai-weight-bold);
  line-height: var(--dai-leading-snug);
  letter-spacing: -0.01em;
  color: var(--dai-ink);
}
.dai-card__text { margin: 0; color: var(--dai-text-muted); font-size: var(--dai-text-sm); line-height: var(--dai-leading-body); }

.dai-card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--dai-space-4);
}

/* -----------------------------------------------------------------------------
   Badge
   -------------------------------------------------------------------------- */
.dai-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--dai-space-1);
  padding: 4px 10px;
  font-family: var(--dai-font-sans);
  font-size: var(--dai-text-2xs);
  font-weight: var(--dai-weight-semibold);
  line-height: 1.4;
  border-radius: var(--dai-radius-pill);
  background: var(--dai-brand-wash);
  color: var(--dai-brand);
}
.dai-badge--solid  { background: var(--dai-brand); color: var(--dai-white); }
.dai-badge--outline { background: transparent; color: var(--dai-brand); border: 1px solid var(--dai-border-brand); }

/* -----------------------------------------------------------------------------
   Form inputs
   -------------------------------------------------------------------------- */
.dai-input {
  width: 100%;
  padding: 13px 15px;
  font-family: inherit;
  font-size: 15px;
  line-height: 1.4;
  color: var(--dai-ink);
  background: var(--dai-surface);
  border: 1.5px solid var(--dai-border-strong);
  border-radius: var(--dai-radius-control);
  -webkit-appearance: none;
  appearance: none;
  transition: border-color var(--dai-dur-fast) var(--dai-ease),
              box-shadow var(--dai-dur-fast) var(--dai-ease);
}
.dai-input::placeholder { color: var(--dai-text-faint); }
.dai-input:hover { border-color: var(--dai-border-brand); }
.dai-input:focus { outline: none; border-color: var(--dai-brand); box-shadow: var(--dai-ring); }

/* -----------------------------------------------------------------------------
   Navbar
   -------------------------------------------------------------------------- */
.dai-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.82);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--dai-dur-slow) var(--dai-ease),
              box-shadow var(--dai-dur-slow) var(--dai-ease);
}
.dai-nav.is-scrolled {
  border-color: var(--dai-border);
  box-shadow: 0 1px 0 rgba(8, 28, 28, 0.03), 0 8px 24px rgba(8, 28, 28, 0.05);
}

/* -----------------------------------------------------------------------------
   Reduced motion
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  .dai-root *,
  .dai-root *::before,
  .dai-root *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .dai-section__glow { animation: none; }
  .dai-btn:hover,
  .dai-card--interactive:hover { transform: none; }
}
