/* Landing-only CSS (trimmed + fixed + smoothed) */

@import url("https://fonts.googleapis.com/css?family=Source+Sans+Pro:300italic,600italic,300,600");

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

html,
body,
h1,
p,
ul,
li,
nav,
header,
footer,
div {
  margin: 0;
  padding: 0;
  border: 0;
}

header,
nav,
footer {
  display: block;
}

html {
  scroll-behavior: smooth;
}

/* Responsive base font sizing (keeps Dimension feel) */
html {
  font-size: 16pt;
}
@media screen and (max-width: 1680px) {
  html {
    font-size: 12pt;
  }
}
@media screen and (max-width: 736px) {
  html {
    font-size: 11pt;
  }
}
@media screen and (max-width: 360px) {
  html {
    font-size: 10pt;
  }
}

body {
  -webkit-text-size-adjust: none;
  background: #1b1f22;
  color: #ffffff;
  font-family: "Source Sans Pro", sans-serif;
  font-weight: 300;
  font-size: 1rem;
  line-height: 1.65;
  position: relative;
  overflow-x: hidden;
}

/* ------------------------------
   Stacking order
   bg (0), particles (1), grain (2), content (3)
   ------------------------------ */

/* BG (Dimension-style) */
#bg {
  -webkit-backface-visibility: hidden;
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100vh;
  z-index: 0;
  pointer-events: none;

  /* IMPORTANT: do NOT animate/translate the container (causes top edge banding) */
  transform: none;
  animation: none;
}

#bg::before,
#bg::after {
  content: "";
  display: block;
  position: absolute;
  inset: 0;
}

/* Overlay layer (fades via is-preload) */
#bg::before {
  transition: background-color 2.1s ease-in-out;
  transition-delay: 0.4s;
  background-image: linear-gradient(
      to top,
      rgba(19, 21, 25, 0.5),
      rgba(19, 21, 25, 0.5)
    ),
    url("../images/overlay.png");
  background-size: auto, 256px 256px;
  background-position: center, center;
  background-repeat: no-repeat, repeat;
  z-index: 2;
}

/* Background image layer */
#bg::after {
  background-image: url("../images/bg.jpg");
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
  z-index: 1;

  /* Drift the image layer (safe: no edge gaps) */
  transform: scale(1.125);
  transform-origin: center;
  will-change: transform, filter;
  animation: fxBgDrift 22s ease-in-out infinite alternate;
}

/* Start darker during preload (template behavior) */
body.is-preload #bg::before {
  background-color: #000000;
}

/* Particles */
#particles {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  pointer-events: none;
}

/* Optional grain overlay */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.08;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)' opacity='.22'/%3E%3C/svg%3E");
  z-index: 2;
}

/* ------------------------------
   Links + Type
   ------------------------------ */

a {
  color: inherit;
  text-decoration: none;
  border-bottom: dotted 1px rgba(255, 255, 255, 0.5);
  transition: color 0.2s ease-in-out, background-color 0.2s ease-in-out,
    border-bottom-color 0.2s ease-in-out;
}
a:hover {
  border-bottom-color: transparent;
}

h1 {
  color: #ffffff;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5rem;
  font-size: 2.25rem;
  line-height: 1.3;
  margin: 0 0 1rem 0;
}
@media screen and (max-width: 736px) {
  h1 {
    font-size: 1.75rem;
    line-height: 1.4;
  }
}

p {
  margin: 0 0 1.5rem 0;
}

/* ------------------------------
   Wrapper layout
   ------------------------------ */

#wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;

  position: relative;
  min-height: 100vh;
  width: 100%;
  padding: 4rem 2rem;
  z-index: 3;
}

/* Dimension trick to keep header visually centered with space-between */
#wrapper::before {
  content: "";
  display: block;
}

@media screen and (max-width: 1680px) {
  #wrapper {
    padding: 3rem 2rem;
  }
}
@media screen and (max-width: 736px) {
  #wrapper {
    padding: 2rem 1rem;
  }
}
@media screen and (max-width: 480px) {
  #wrapper {
    padding: 1rem;
  }
}

/* Preload fade (content + particles) */
body.is-preload #wrapper {
  opacity: 0;
}
body:not(.is-preload) #wrapper {
  opacity: 1;
  transition: opacity 240ms ease;
}

body.is-preload #particles {
  opacity: 0;
}
body:not(.is-preload) #particles {
  opacity: 0.55;
  transition: opacity 700ms ease;
}

/* ------------------------------
   Header
   ------------------------------ */

#header {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  max-width: 100%;
}

#header > * + * {
  margin-top: 3.5rem;
}

/* ------------------------------
   Content box (bars + smooth reveal)
   ------------------------------ */

#header .content {
  position: relative;
  width: 100%;
  max-width: 100%;
  border: 0;
}

/* The two long bars */
#header .content::before,
#header .content::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  height: 1px;
  background: #ffffff;

  transform-origin: center;
  transition: transform 700ms cubic-bezier(.2,.8,.2,1);
  z-index: 5;
}

#header .content::before { top: 0; }
#header .content::after { bottom: 0; }

body.is-preload #header .content::before,
body.is-preload #header .content::after {
  transform: scaleX(0);
}
body:not(.is-preload) #header .content::before,
body:not(.is-preload) #header .content::after {
  transform: scaleX(1);
}

/* Smooth reveal (no max-height/padding animation) */
#header .content .inner {
  position: relative;
  z-index: 1;
  overflow: hidden;
  padding: 3rem 2rem 2.4rem 2rem;

  opacity: 1;
  transform: translate3d(0, 0, 0);
  transition: opacity 520ms ease, transform 700ms ease;
  transition-delay: 160ms;
}

body.is-preload #header .content .inner {
  opacity: 0;
  transform: translate3d(0, 10px, 0);
}

#header .content p {
  text-transform: uppercase;
  letter-spacing: 0.2rem;
  font-size: 0.8rem;
  line-height: 2;
}

/* Shimmer behind hero content */
#header .content .inner::before {
  content: "";
  position: absolute;
  inset: -18px;
  border-radius: 4px;
  background: radial-gradient(
      600px 120px at 30% 10%,
      rgba(155, 110, 255, 0.14),
      transparent 60%
    ),
    radial-gradient(
      520px 140px at 70% 0%,
      rgba(90, 220, 255, 0.1),
      transparent 60%
    );
  opacity: 0.55;
  filter: blur(14px);
  pointer-events: none;
  transform: translateZ(0);
  animation: fxGlowBreath 7s ease-in-out infinite;
  z-index: -1;
}

/* ------------------------------
   Nav buttons (BUTTERY entrance via keyframes)
   ------------------------------ */

#header nav ul {
  display: inline-flex;
  margin-bottom: 0;
  list-style: none;
  padding-left: 0;
  border: solid 1px #ffffff;
  border-radius: 4px;
}

#header nav::before {
  display: none;
}

#header nav ul li {
  padding-left: 0;
  border-left: solid 1px #ffffff;
}
#header nav ul li:first-child {
  border-left: 0;
}

/* Base button style + INSTANT hover fill */
#header nav ul li a {
  display: block;
  width: 10rem;
  height: 2.4rem;
  line-height: 2.4rem;
  padding: 0 1rem;
  text-align: center;
  text-transform: uppercase;
  letter-spacing: 0.2rem;
  font-size: 0.75rem;
  border-bottom: 0;

  position: relative;
  overflow: hidden;

  background-color: rgba(255, 255, 255, 0.05);

  transform: translate3d(0,0,0) scale(1);
  will-change: transform;
  backface-visibility: hidden;

  transition:
    background-color 100ms linear,
    transform 160ms cubic-bezier(.2,.8,.2,1),
    box-shadow 180ms cubic-bezier(.2,.8,.2,1);
}

#header nav ul li a:hover {
  background-color: rgba(255, 255, 255, 0.09);
}

/* Container reveal */
#header nav {
  opacity: 1;
  transform: translate3d(0, 0, 0) scale(1);
}

body.is-preload #header nav {
  opacity: 0;
  transform: translate3d(0, 10px, 0) scale(0.985);
}

body:not(.is-preload) #header nav {
  transition: opacity 420ms ease, transform 700ms ease;
  transition-delay: 260ms;
  opacity: 1;
  transform: translate3d(0, 0, 0) scale(1);
}

/* BUTTERY entrance: animate each <a> with keyframes (no hover delays ever) */
body.is-preload #header nav ul li a {
  opacity: 0;
  transform: translate3d(0, 10px, 0);
  animation: none;
}

body:not(.is-preload) #header nav ul li a {
  animation: navIn 720ms cubic-bezier(.2,.8,.2,1) both;
}

/* Stagger via animation-delay (NOT transition-delay) */
body:not(.is-preload) #header nav ul li:nth-child(1) a { animation-delay: 320ms; }
body:not(.is-preload) #header nav ul li:nth-child(2) a { animation-delay: 380ms; }
body:not(.is-preload) #header nav ul li:nth-child(3) a { animation-delay: 440ms; }
body:not(.is-preload) #header nav ul li:nth-child(4) a { animation-delay: 500ms; }

@keyframes navIn {
  from {
    opacity: 0;
    transform: translate3d(0, 10px, 0);
  }
  to {
    opacity: 1;
    transform: translate3d(0, 0, 0);
  }
}

/* Button micro-interactions + sheen */
#header nav a {
  transform: translate3d(0,0,0) scale(1);
}

#header nav a:hover {
  transform: translate3d(0,-2px,0) scale(1.03);
  background-color: rgba(255, 255, 255, 0.10);
  box-shadow: 0 14px 36px rgba(0, 0, 0, 0.35);
}

#header nav a:active {
  transform: translate3d(0,0,0) scale(0.985);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.25);
}

#header nav a::after {
  content: "";
  position: absolute;
  inset: -40% -60%;
  background: linear-gradient(
    120deg,
    transparent 40%,
    rgba(255, 255, 255, 0.16),
    transparent 60%
  );
  transform: translateX(-35%) rotate(10deg);
  opacity: 0;
  transition: opacity 240ms ease, transform 700ms ease;
  pointer-events: none;
}

#header nav a:hover::after {
  opacity: 1;
  transform: translateX(35%) rotate(10deg);
}

#header nav a:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px rgba(185, 130, 255, 0.35),
    0 14px 36px rgba(0, 0, 0, 0.35);
}

/* Passive idle sweep */
#header nav ul li a::before {
  content: "";
  position: absolute;
  inset: 0;

  background: linear-gradient(
    120deg,
    transparent 35%,
    rgba(255, 255, 255, 0.08),
    transparent 65%
  );

  transform: translate3d(-120%,0,0);
  animation: navIdleSweep 7s linear infinite;

  pointer-events: none;
  will-change: transform;
}

@keyframes navIdleSweep {
  from { transform: translate3d(-120%,0,0); }
  to   { transform: translate3d(120%,0,0); }
}

/* Stack nav on very small screens */
@media screen and (max-width: 480px) {
  #header nav ul {
    flex-direction: column;
    min-width: 10rem;
    max-width: 100%;
  }

  #header nav ul li {
    border-left: 0;
    border-top: solid 1px #ffffff;
  }

  #header nav ul li:first-child {
    border-top: 0;
  }

  #header nav ul li a {
    height: 3rem;
    line-height: 3rem;
    width: 100%;
  }
}

/* ------------------------------
   Footer (bring back a subtle reveal)
   ------------------------------ */

#footer {
  text-align: center;
  opacity: 1;
  transform: translate3d(0, 0, 0);
}

body.is-preload #footer {
  opacity: 0;
  transform: translate3d(0, 10px, 0);
}

body:not(.is-preload) #footer {
  transition: opacity 520ms ease, transform 700ms ease;
  transition-delay: 520ms;
  opacity: 1;
  transform: translate3d(0, 0, 0);
}

#footer .copyright {
  letter-spacing: 0.2rem;
  font-size: 0.6rem;
  opacity: 0.75;
  text-transform: uppercase;
  margin-bottom: 0;
}

/* ------------------------------
   Animations
   ------------------------------ */

@keyframes fxGlowBreath {
  0% {
    opacity: 0.38;
    transform: translateY(0) scale(1);
  }
  50% {
    opacity: 0.62;
    transform: translateY(-6px) scale(1.02);
  }
  100% {
    opacity: 0.38;
    transform: translateY(0) scale(1);
  }
}

/* Drift the image layer only (gentler, less “jitter”) */
@keyframes fxBgDrift {
  0% {
    transform: scale(1.125) translate(-0.35%, -0.25%);
    filter: saturate(1.02);
  }
  100% {
    transform: scale(1.155) translate(0.35%, 0.25%);
    filter: saturate(1.08);
  }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  #bg::after,
  #header .content .inner::before,
  #header nav ul li a::before {
    animation: none !important;
  }

  #header nav a,
  #wrapper,
  #particles,
  #header .content,
  #header nav,
  #footer,
  #header .content .inner {
    transition: none !important;
  }

  body::before,
  #particles {
    display: none !important;
  }
}