/* ==========================================================================
   KODAIR WIND — HOLDING PAGE
   TN Media · 2026

   Same design system as the site build (css/site.css in the May design):
   Montserrat, navy #1A1B6E, pill buttons, frosted header, full-bleed video.
   ========================================================================== */

:root {
  --kw-navy:        #1A1B6E;
  --kw-navy-deep:   #0E1349;
  --kw-navy-soft:   #6E7BC7;
  --kw-ink:         #0B0F12;
  --kw-paper:       #FAFAF7;
  --kw-line:        #E5E2DC;
  --kw-line-dark:   #1F2A30;
  --kw-mute-dark:   #8FA3AE;

  --font: "Montserrat", system-ui, -apple-system, "Segoe UI", sans-serif;

  --t-xs:   clamp(0.72rem, 0.70rem + 0.08vw, 0.78rem);
  --t-sm:   clamp(0.83rem, 0.81rem + 0.10vw, 0.89rem);
  --t-md:   clamp(1.25rem, 1.18rem + 0.36vw, 1.44rem);
  --t-lg:   clamp(1.56rem, 1.45rem + 0.55vw, 1.85rem);
  --t-6xl:  clamp(2.6rem, 1.6rem + 5.4vw, 8.05rem);

  --sp-3: clamp(0.75rem, 0.71rem + 0.20vw, 0.88rem);
  --sp-4: clamp(1.00rem, 0.95rem + 0.24vw, 1.13rem);
  --sp-5: clamp(1.50rem, 1.43rem + 0.36vw, 1.69rem);
  --sp-6: clamp(2.00rem, 1.90rem + 0.49vw, 2.25rem);
  --sp-8: clamp(4.00rem, 3.80rem + 0.97vw, 4.50rem);

  --max-w: 1320px;
  --gutter: clamp(1.25rem, 4vw, 2.5rem);
  --radius: 16px;
  --radius-pill: 999px;
  --shadow-soft: 0 8px 24px -12px rgba(14, 19, 73, 0.18);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --t-fast: 200ms;
  --header-h: 72px;
}

*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; }
body {
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.55;
  color: var(--kw-paper);
  background: var(--kw-ink);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img, video { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
:focus-visible { outline: 2px solid var(--kw-navy-soft); outline-offset: 4px; }
.wrap { width: 100%; max-width: var(--max-w); margin-inline: auto; padding-inline: var(--gutter); }

/* --------------------------------------------------------------------------
   Full-bleed footage
   -------------------------------------------------------------------------- */
.hero__video, .hero__poster {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}
.hero__video { opacity: 0; transition: opacity 700ms var(--ease); }
.hero__video.is-playing { opacity: 1; }
.hero__overlay {
  position: fixed;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(180deg, rgba(11, 15, 18, 0.35) 0%, rgba(11, 15, 18, 0.55) 60%, rgba(11, 15, 18, 0.95) 100%),
    linear-gradient(90deg, rgba(11, 15, 18, 0.55) 0%, transparent 50%);
}

/* --------------------------------------------------------------------------
   Header — frosted paper bar, as on the site
   -------------------------------------------------------------------------- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 10;
  height: var(--header-h);
  display: flex;
  align-items: center;
  background: color-mix(in srgb, var(--kw-paper) 92%, transparent);
  backdrop-filter: blur(20px) saturate(140%);
  -webkit-backdrop-filter: blur(20px) saturate(140%);
  border-bottom: 1px solid color-mix(in srgb, var(--kw-line) 60%, transparent);
  color: var(--kw-ink);
}
.site-header__inner {
  width: 100%;
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-5);
}
.brand__logo { height: 36px; width: auto; }

/* --------------------------------------------------------------------------
   Buttons — pills
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 15px 26px;
  font-family: var(--font);
  font-size: var(--t-sm);
  font-weight: 600;
  border: 1.5px solid transparent;
  border-radius: var(--radius-pill);
  white-space: nowrap;
  transition: background var(--t-fast) var(--ease), color var(--t-fast) var(--ease), transform var(--t-fast) var(--ease), box-shadow var(--t-fast) var(--ease);
}
.btn--primary { color: var(--kw-paper); background: var(--kw-navy); }
.btn--primary:hover { background: var(--kw-navy-deep); transform: translateY(-2px); box-shadow: var(--shadow-soft); }
.btn--ghost { color: var(--kw-paper); border-color: color-mix(in srgb, #fff 35%, transparent); }
.btn--ghost:hover { background: var(--kw-paper); color: var(--kw-navy); border-color: var(--kw-paper); transform: translateY(-2px); }
.btn--sm { padding: 11px 20px; }
.btn__arrow { transition: transform var(--t-fast) var(--ease); }
.btn:hover .btn__arrow { transform: translateX(4px); }

/* --------------------------------------------------------------------------
   Hero
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  z-index: 2;
  flex: 1;
  display: flex;
  align-items: flex-end;
  padding-top: calc(var(--header-h) + var(--sp-8));
  padding-bottom: var(--sp-8);
}
.hero__tag {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: var(--t-xs);
  font-weight: 600;
  letter-spacing: 0.02em;
  margin-bottom: var(--sp-5);
  background: color-mix(in srgb, #fff 12%, transparent);
  border: 1px solid color-mix(in srgb, #fff 22%, transparent);
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.hero__tag::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #5BD6A0;
  box-shadow: 0 0 10px #5BD6A0;
  animation: pulse 1.8s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(1.3); }
}
.hero__title {
  font-size: var(--t-6xl);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 0.9;
  max-width: 12ch;
  margin-bottom: var(--sp-5);
  text-wrap: balance;
}
.hero__lead {
  font-size: var(--t-lg);
  font-weight: 500;
  max-width: 34ch;
  line-height: 1.3;
  margin-bottom: var(--sp-6);
}
.hero__sub {
  font-size: var(--t-md);
  font-weight: 300;
  color: var(--kw-mute-dark);
  max-width: 50ch;
  margin-bottom: var(--sp-6);
}
.hero__cta-row { display: flex; gap: var(--sp-4); flex-wrap: wrap; }

/* --------------------------------------------------------------------------
   Footer strip
   -------------------------------------------------------------------------- */
.site-footer {
  position: relative;
  z-index: 2;
  background: color-mix(in srgb, var(--kw-ink) 85%, transparent);
  border-top: 1px solid var(--kw-line-dark);
  padding-block: var(--sp-4);
  font-size: var(--t-xs);
  font-weight: 500;
  color: var(--kw-mute-dark);
}
.site-footer .wrap {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--sp-3);
}
.site-footer a { color: var(--kw-paper); transition: color var(--t-fast) var(--ease); }
.site-footer a:hover { color: var(--kw-navy-soft); }

/* --------------------------------------------------------------------------
   Responsive + motion
   -------------------------------------------------------------------------- */
@media (max-width: 600px) {
  .hero { padding-bottom: var(--sp-6); }
  .hero__cta-row { flex-direction: column; align-items: stretch; }
  .hero__lead { font-size: var(--t-md); }
  .hero__sub { font-size: 1rem; }
  .site-footer .wrap { flex-direction: column; }
  .site-header .btn span { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  .hero__video { opacity: 1; }
}