/* ==========================================================================
   BVD Software — landing page
   Plain CSS, no build step. Sections follow the order of the markup.
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Design tokens
   -------------------------------------------------------------------------- */

:root {
  /* Brand */
  --brand: #4353f0;
  --brand-dark: #3341d6;
  --brand-soft: #eef0ff;

  /* Per-app accents. Every .app section overrides these inline. */
  --accent: var(--brand);
  --accent-dark: var(--brand-dark);
  --accent-soft: var(--brand-soft);
  --accent-text: #ffffff;
  /* A version of the accent dark enough to read as text on a white
     background. Light accents (Competitie's yellow) are unreadable otherwise. */
  --accent-ink: var(--brand-dark);

  /* Ink */
  --ink: #0d1b3e;
  --ink-soft: #5c6780;
  --ink-faint: #8a93a8;

  /* Surfaces */
  --surface: #ffffff;
  --surface-alt: #fafbfd;
  --hairline: #e6e9f0;

  /* Type */
  --font: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI',
    Roboto, Helvetica, Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, 'SF Mono', Menlo, Consolas,
    'Liberation Mono', monospace;

  /* Layout */
  --page: 1140px;
  --gutter: 24px;

  /* Phone mockup width. A phone is ~2.09x as tall as it is wide, so tying the
     width to viewport height is what keeps a whole app section on screen.
     Overridden below 900px, where the layout stacks and vh stops being the
     constraint. */
  --phone-w: clamp(200px, 30vh, 310px);

  color-scheme: light;
}

/* --------------------------------------------------------------------------
   2. Base
   -------------------------------------------------------------------------- */

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  /* keep anchored sections clear of the sticky header */
  scroll-padding-top: 96px;
}

body {
  margin: 0;
  background: var(--surface);
  color: var(--ink);
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.12;
  letter-spacing: -0.02em;
  font-weight: 800;
}

p {
  margin: 0;
}

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

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

/* --------------------------------------------------------------------------
   3. Shared helpers
   -------------------------------------------------------------------------- */

.container {
  width: 100%;
  max-width: var(--page);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.eyebrow {
  margin: 0 0 18px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

.lede {
  color: var(--ink-soft);
  font-size: 17px;
  max-width: 46ch;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 26px;
  border-radius: 999px;
  background: var(--accent);
  color: var(--accent-text, #fff);
  font-weight: 700;
  font-size: 16px;
  box-shadow: 0 10px 24px -10px color-mix(in srgb, var(--accent) 70%, transparent);
  transition: background 0.18s ease, transform 0.18s ease, box-shadow 0.18s ease;
}

.btn:hover {
  background: var(--accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 16px 30px -12px color-mix(in srgb, var(--accent) 75%, transparent);
}

.btn:active {
  transform: translateY(0);
}

.btn svg {
  flex: none;
}

/* Visible keyboard focus everywhere, without a ring on mouse clicks. */
:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--accent) 55%, transparent);
  outline-offset: 3px;
  border-radius: 6px;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* --------------------------------------------------------------------------
   4. Header
   -------------------------------------------------------------------------- */

.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 74px;
}

.nav__logo {
  font-size: 21px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.nav__logo span {
  color: var(--ink-faint);
  font-weight: 600;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 34px;
}

.nav__link {
  position: relative;
  padding: 6px 0;
  font-size: 15px;
  font-weight: 600;
  color: var(--ink-soft);
  transition: color 0.18s ease;
}

.nav__link:hover {
  color: var(--ink);
}

.nav__link.is-active {
  color: var(--brand);
}

.nav__link.is-active::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2px;
  height: 2.5px;
  border-radius: 2px;
  background: var(--brand);
}

@media (max-width: 720px) {
  .nav__inner {
    flex-direction: column;
    gap: 6px;
    padding-block: 14px;
    min-height: 0;
  }

  .nav__links {
    gap: 22px;
  }

  .nav__link {
    font-size: 14px;
  }

  /* The stacked header is taller than the desktop one, so anchor links need
     a bigger offset or they land underneath it. */
  html {
    scroll-padding-top: 116px;
  }
}

/* --------------------------------------------------------------------------
   6. App section — one per application
   -------------------------------------------------------------------------- */

/* Each app fills the screen, so only one is visible at a time.
   `align-content: center` centres the content block inside that full height —
   which also keeps it clear of the sticky header overlaying the top ~74px. */
.app {
  display: grid;
  align-content: center;
  min-height: 100vh;
  min-height: 100svh;
  padding: clamp(40px, 5vh, 80px) 0;
  background: var(--surface);
}

.app--alt {
  background: var(--surface-alt);
}

/* Top-aligned, not centred: the copy starts level with the top of the
   phone/laptop rather than floating in the middle of the section. */
.app__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: start;
  gap: 56px;
}

.app__head {
  display: flex;
  align-items: center;
  gap: 20px;
}

/* Tile for an inline SVG glyph */
.app__icon {
  display: grid;
  place-items: center;
  flex: none;
  width: 62px;
  height: 62px;
  border-radius: 17px;
  background: linear-gradient(150deg,
    color-mix(in srgb, var(--accent) 88%, #fff),
    var(--accent-dark));
  color: #fff;
  box-shadow: 0 12px 22px -12px color-mix(in srgb, var(--accent) 85%, transparent);
}

/* A real app icon brings its own artwork and background.
   `display: block` (not the grid above) so the image's `height: 100%`
   resolves against the tile instead of falling back to its attribute. */
.app__icon--img {
  display: block;
  overflow: hidden;
  background: #fff;
  box-shadow:
    0 0 0 1px rgba(13, 27, 62, 0.07),
    0 12px 22px -12px rgba(13, 27, 62, 0.45);
}

.app__icon--img img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* For a logo rather than a full-bleed app icon: inset it so it has room to
   breathe inside the tile, and keep its aspect ratio. */
.app__icon--pad img {
  padding: 16%;
  object-fit: contain;
}

.app__name {
  font-size: clamp(30px, 3.4vw, 40px);
}

.app__tagline {
  margin-top: 6px;
  font-size: 17px;
  font-weight: 600;
  color: var(--ink-soft);
}

.app__desc {
  margin-top: 26px;
}

.app__cta {
  margin-top: 32px;
}

.app__url {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 22px;
  font-size: 15px;
  color: var(--ink-soft);
  transition: color 0.18s ease;
}

.app__url:hover {
  color: var(--accent-ink);
}

.app__url svg {
  color: var(--ink-faint);
}

.app__badge {
  display: inline-block;
  margin-top: 32px;
  padding: 11px 22px;
  border: 1.5px dashed color-mix(in srgb, var(--accent) 45%, #fff);
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-ink);
  font-size: 15px;
  font-weight: 700;
}

/* The placeholder section reads as a draft, not a shipped product. */
.app--soon .app__icon {
  opacity: 0.9;
}

.app--soon .app__device {
  opacity: 0.85;
}

@media (max-width: 900px) {
  .app {
    padding: 56px 0;
  }

  .app__inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  /* min-width:0 so a wide code block can't push the section past the
     viewport; .code__body scrolls on its own instead. */
  .app__device {
    order: 2;
    min-width: 0;
  }
}

/* --------------------------------------------------------------------------
   7. Devices
   The screen of each device is a CSS container, and the canvas inside sets a
   font size derived from the frame's width. Anything drawn inside a screen is
   sized in `em`, so it stays proportional at every breakpoint.
   -------------------------------------------------------------------------- */

/* --- Laptop --- */

.laptop {
  width: 100%;
  filter: drop-shadow(0 26px 40px rgba(13, 27, 62, 0.16));
}

.laptop__lid {
  padding: 1.6%;
  border-radius: 14px 14px 4px 4px;
  background: linear-gradient(160deg, #2c3242, #171b26);
}

.laptop__screen {
  container-type: inline-size;
  overflow: hidden;
  border-radius: 7px 7px 0 0;
  background: #fff;
  aspect-ratio: 16 / 10;
}

.laptop__canvas {
  /* ~14px of screen type at a 1280px design width */
  font-size: 1.28cqw;
  width: 100%;
  height: 100%;
}

/* Base: a shallow trapezoid, wider than the lid, with the thumb notch. */
.laptop__base {
  position: relative;
  width: 106%;
  margin-left: -3%;
  height: 14px;
  border-radius: 0 0 11px 11px;
  background: linear-gradient(180deg, #d5d9e2 0%, #b7bdca 62%, #9aa1b1 100%);
  clip-path: polygon(0 0, 100% 0, 98.4% 100%, 1.6% 100%);
}

.laptop__notch {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 15%;
  height: 5px;
  border-radius: 0 0 6px 6px;
  background: #9aa1b1;
}

@media (max-width: 640px) {
  .laptop__base {
    height: 10px;
  }

  .laptop__notch {
    height: 4px;
  }
}

/* --- Phone --- */

.phone {
  position: relative;
  width: 100%;
  max-width: var(--phone-w);
  margin-inline: auto;
  filter: drop-shadow(0 26px 40px rgba(13, 27, 62, 0.18));
}

.phone__frame {
  position: relative;
  padding: 3.2%;
  border-radius: 13% / 6.2%;
  background: linear-gradient(155deg, #3a4152, #191d28 46%, #2b3140);
}

.phone__screen {
  container-type: inline-size;
  position: relative;
  overflow: hidden;
  border-radius: 10.5% / 5.4%;
  background: #fff;
  aspect-ratio: 9 / 19.5;
}

.phone__canvas {
  /* ~16px of screen type at a 390px design width */
  font-size: 4.1cqw;
  width: 100%;
  height: 100%;
}

/* Dynamic island. Leave it out when the screen is a real screenshot — those
   have no status bar, so it would sit on the app's own header. */
.phone__island {
  position: absolute;
  top: 4.6%;
  left: 50%;
  z-index: 2;
  transform: translateX(-50%);
  width: 27%;
  height: 3.1%;
  border-radius: 999px;
  background: #10131b;
}

.phone__key {
  position: absolute;
  width: 2px;
  border-radius: 2px;
  background: linear-gradient(180deg, #2f3545, #454c5e);
}

.phone__key--mute {
  left: -2px;
  top: 15%;
  height: 3.4%;
}

.phone__key--up {
  left: -2px;
  top: 22%;
  height: 6.4%;
}

.phone__key--down {
  left: -2px;
  top: 30.5%;
  height: 6.4%;
}

.phone__key--power {
  right: -2px;
  top: 25%;
  height: 9.2%;
}

/* --------------------------------------------------------------------------
   8. Screenshot carousel
   The track is a native scroll-snap strip, so swiping and trackpad scrolling
   work with no JavaScript. script.js only adds the dots, arrows and caption.
   -------------------------------------------------------------------------- */

.carousel {
  width: 100%;
}

.carousel__track {
  display: flex;
  width: 100%;
  height: 100%;
  overflow-x: auto;
  overflow-y: hidden;
  scroll-snap-type: x mandatory;
  scrollbar-width: none;
  -ms-overflow-style: none;
  overscroll-behavior-x: contain;
}

.carousel__track::-webkit-scrollbar {
  display: none;
}

.carousel__slide {
  flex: 0 0 100%;
  height: 100%;
  margin: 0;
  scroll-snap-align: center;
  scroll-snap-stop: always;
}

.carousel__slide img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
}

.carousel__ui {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  margin-top: 16px;
}

.carousel__arrow {
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  padding: 0;
  border: 1px solid var(--hairline);
  border-radius: 50%;
  background: var(--surface);
  color: var(--ink-soft);
  cursor: pointer;
  transition: color 0.18s ease, border-color 0.18s ease, opacity 0.18s ease;
}

.carousel__arrow svg {
  width: 17px;
  height: 17px;
}

.carousel__arrow:hover:not(:disabled) {
  color: var(--accent);
  border-color: color-mix(in srgb, var(--accent) 45%, transparent);
}

.carousel__arrow:disabled {
  opacity: 0.32;
  cursor: default;
}

.carousel__dots {
  display: flex;
  align-items: center;
  gap: 9px;
}

.carousel__dot {
  width: 8px;
  height: 8px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: #ccd3e0;
  cursor: pointer;
  transition: width 0.22s ease, background 0.22s ease;
}

.carousel__dot[aria-current='true'] {
  width: 24px;
  border-radius: 999px;
  background: var(--accent);
}

.carousel__caption {
  margin-top: 8px;
  text-align: center;
  font-size: 13px;
  font-weight: 600;
  color: var(--ink-faint);
}

@media (max-width: 900px) {
  :root {
    --phone-w: min(290px, 68vw);
  }

  .carousel__ui {
    margin-top: 18px;
  }
}

/* A single screenshot filling a device screen, with no carousel around it. */
.shot {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
}

/* --------------------------------------------------------------------------
   8b. Libraries — a code card instead of a device
   -------------------------------------------------------------------------- */

.code {
  /* Grid/flex items default to min-width:auto, which would let the code's
     widest line push the whole section wider than the viewport. Shrinking is
     fine here: .code__body scrolls horizontally on its own. */
  min-width: 0;
  overflow: hidden;
  border-radius: 14px;
  background: #131a2b;
  box-shadow:
    0 0 0 1px rgba(13, 27, 62, 0.06),
    0 26px 40px -20px rgba(13, 27, 62, 0.45);
}

.code__bar {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 12px 16px;
  background: #0e1422;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.code__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.16);
}

.code__file {
  margin-left: 8px;
  font-family: var(--mono);
  font-size: 12px;
  color: rgba(255, 255, 255, 0.42);
}

.code__body {
  margin: 0;
  padding: 20px 22px 22px;
  overflow-x: auto;
  font-family: var(--mono);
  font-size: 13.5px;
  line-height: 1.75;
  color: #cdd6ea;
  tab-size: 2;
}

.code__install {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 22px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  background: #0e1422;
  font-family: var(--mono);
  font-size: 13.5px;
  color: #cdd6ea;
}

.code__prompt {
  color: var(--accent);
  font-weight: 700;
}

/* Syntax colours, tuned for the dark card */
.tok-key { color: #c792ea; }
.tok-str { color: #9bde7a; }
.tok-tag { color: #7fd3f7; }
.tok-attr { color: #ffcb8b; }
.tok-fn { color: #82aaff; }
.tok-id { color: #e6edf8; }

@media (max-width: 900px) {
  .code__body {
    font-size: 12.5px;
    padding: 16px 18px 18px;
  }

  .code__install {
    padding: 12px 18px;
    font-size: 12.5px;
  }
}

/* On a phone the deepest nested route is a few pixels wider than the card, so
   drop a size rather than leave the sample scrolling sideways. */
@media (max-width: 430px) {
  .code__body {
    font-size: 11px;
    padding: 14px 16px 16px;
  }

  .code__install {
    padding: 11px 16px;
    font-size: 11px;
  }
}

/* --------------------------------------------------------------------------
   9. Wallpaper shown on the laptop screen (about.html)
   -------------------------------------------------------------------------- */

.wall {
  position: relative;
  display: grid;
  place-items: center;
  width: 100%;
  height: 100%;
  background: linear-gradient(180deg, #b9c6f8 0%, #a3b3f5 45%, #93a5f2 100%);
}

.wall__hills {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.wall__glyph {
  position: relative;
  width: 21%;
  height: auto;
  opacity: 0.95;
  filter: drop-shadow(0 0.15em 0.4em rgba(20, 30, 90, 0.25));
}

/* --------------------------------------------------------------------------
   10. Placeholder desktop screen (section #3)
   Neutral skeleton. It picks up the section's --accent, so changing the accent
   restyles it. Replace the whole block when a real app goes in.
   -------------------------------------------------------------------------- */

.scr {
  display: grid;
  grid-template-columns: 15.5em 1fr;
  height: 100%;
  background: #fff;
  font-size: 1em;
}

.scr__side {
  display: flex;
  flex-direction: column;
  gap: 0.85em;
  padding: 1.4em 1.1em;
  background: #1d2433;
}

.scr__brand {
  display: flex;
  align-items: center;
  gap: 0.6em;
  margin-bottom: 1em;
}

.scr__logo {
  width: 1.5em;
  height: 1.5em;
  border-radius: 0.4em;
  background: var(--accent, #4353f0);
}

.scr__bar {
  display: block;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.28);
}

.scr__bar--brand {
  width: 5.5em;
  height: 0.6em;
}

.scr__nav {
  width: 100%;
  height: 1.9em;
  border-radius: 0.45em;
  background: rgba(255, 255, 255, 0.07);
}

.scr__nav.is-active {
  background: var(--accent, #4353f0);
  opacity: 0.85;
}

.scr__main {
  display: flex;
  flex-direction: column;
  gap: 1.4em;
  padding: 1.6em 1.8em;
  background: #f7f8fb;
}

.scr__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.scr__bar--title {
  width: 12em;
  height: 0.9em;
  background: #c9cfdb;
}

.scr__btn {
  width: 7em;
  height: 2.2em;
  border-radius: 0.5em;
  background: var(--accent, #4353f0);
  opacity: 0.85;
}

.scr__cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1em;
}

.scr__card {
  height: 5.2em;
  border: 1px solid #e6e9f0;
  border-radius: 0.7em;
  background: #fff;
}

.scr__table {
  flex: 1;
  border: 1px solid #e6e9f0;
  border-radius: 0.7em;
  background: #fff;
  overflow: hidden;
}

.scr__row {
  display: grid;
  grid-template-columns: 2.2fr 1fr 1fr 0.8fr;
  gap: 1.4em;
  align-items: center;
  padding: 1em 1.3em;
  border-bottom: 1px solid #eef0f5;
}

.scr__row:last-child {
  border-bottom: 0;
}

.scr__row span {
  height: 0.65em;
  border-radius: 999px;
  background: #e3e7ef;
}

.scr__row--head {
  background: #fbfcfe;
}

.scr__row--head span {
  background: #ccd3e0;
  height: 0.55em;
}

.scr__row span:last-child {
  border-radius: 999px;
  background: color-mix(in srgb, var(--accent, #4353f0) 22%, #fff);
  height: 1.3em;
}

/* --------------------------------------------------------------------------
   11. About / contact / footer
   -------------------------------------------------------------------------- */

.about {
  padding: 96px 0;
  background: var(--surface-alt);
  border-top: 1px solid var(--hairline);
}

/* Laptop on the left, copy on the right. */
.about__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 56px;
}

/* The laptop's base is 106% wide with a -3% margin (that is what gives it the
   trapezoid shape), so it bleeds past its column and ends up almost touching
   the page edge once the container stops growing. Inset it. */
.about__device {
  padding-inline: 32px;
}

.about__title {
  font-size: clamp(28px, 3.2vw, 38px);
}

.about__text {
  margin-top: 22px;
  max-width: 62ch;
}

@media (max-width: 900px) {
  .about__inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  /* text first, laptop under it — same order as the app sections */
  .about__device {
    order: 2;
    width: 100%;
    max-width: 520px;
    margin-inline: auto;
    padding-inline: 12px;
  }
}

.contact {
  padding: 92px 0;
  background:
    radial-gradient(circle at 50% 0%, #eef0ff 0%, rgba(255, 255, 255, 0) 65%),
    var(--surface);
}

.contact__inner {
  text-align: center;
}

.contact__title {
  font-size: clamp(27px, 3.1vw, 36px);
}

.contact__text {
  margin-top: 14px;
  color: var(--ink-soft);
}

.contact__cta {
  margin-top: 30px;
}

.footer {
  padding: 30px 0 38px;
  border-top: 1px solid var(--hairline);
  background: var(--surface);
}

.footer__inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px 26px;
  flex-wrap: wrap;
  font-size: 15px;
  color: var(--ink-soft);
}

.footer__inner p {
  display: flex;
  align-items: center;
  gap: 8px;
}

.footer__inner svg {
  color: #e0534e;
}

.footer__legal {
  color: var(--ink-faint);
}