/* ===================================================================== */
/* styles/layout.css                                                       */
/* ===================================================================== */

html,
body {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
}

html {
  opacity: 1;
  transition: opacity 300ms ease;
}

html.is-dipping {
  opacity: 0.10;
}

[data-theme="dark"] {
  --bg-page:           #000000;
  --overlay-opacity:   0;
  --overlay-color:     0, 0, 0;
  --toggle-bg:         rgba(255, 255, 255, 0.08);
  --toggle-bg-h:       rgba(255, 255, 255, 0.16);
  --toggle-border:     rgba(255, 255, 255, 0.22);
  --toggle-icon:       rgba(255, 255, 255, 0.82);
  --toggle-icon-h:     rgba(255, 255, 255, 1.00);

  --btn-grad-a:        rgba(255, 255, 255, 0.06);
  --btn-grad-b:        rgba(255, 255, 255, 0.18);
  --btn-text:          rgba(245, 242, 235, 1);
  --btn-text-shadow:   0em 0.25em 0.05em rgba(255, 255, 255, 0.10);
  --btn-text-shadow-h: 0.025em 0.025em 0.025em rgba(255, 255, 255, 0.14);
  --btn-text-shadow-a: 0.025em 0.25em 0.05em rgba(255, 255, 255, 0.14);
  --btn-inset-top:     rgba(0, 0, 0, 0.30);
  --btn-inset-bot:     rgba(255, 255, 255, 0.28);
  --btn-inner-glow:    rgba(255, 255, 255, 0.12);
  --btn-inner-glow-h:  rgba(255, 255, 255, 0.28);
  --btn-drop:          rgba(0, 0, 0, 0.55);
  --btn-drop-h:        rgba(0, 0, 0, 0.65);
  --btn-outline-arc:   rgba(255, 255, 255, 0.55);
  --btn-outline-fill:  rgba(255, 255, 255, 0.18);
  --btn-outline-inset: rgba(255, 255, 255, 0.22);
  --btn-gloss:         rgba(255, 255, 255, 0.03);
  --btn-shadow-a:      rgba(0, 0, 0, 0.55);
  --btn-shadow-b:      rgba(0, 0, 0, 0.30);
}

[data-theme="light"] {
  --bg-page:           #ffffff;
  --overlay-opacity:   0;
  --overlay-color:     0, 0, 0;
  --toggle-bg:         rgba(20, 22, 30, 0.05);
  --toggle-bg-h:       rgba(20, 22, 30, 0.10);
  --toggle-border:     rgba(20, 22, 30, 0.18);
  --toggle-icon:       rgba(20, 22, 30, 0.72);
  --toggle-icon-h:     rgba(20, 22, 30, 1.00);

  --btn-grad-a:        rgba(255, 255, 255, 0.05);
  --btn-grad-b:        rgba(255, 255, 255, 0.20);
  --btn-text:          rgba(50, 50, 50, 1);
  --btn-text-shadow:   0em 0.25em 0.05em rgba(0, 0, 0, 0.10);
  --btn-text-shadow-h: 0.025em 0.025em 0.025em rgba(0, 0, 0, 0.12);
  --btn-text-shadow-a: 0.025em 0.25em 0.05em rgba(0, 0, 0, 0.12);
  --btn-inset-top:     rgba(0, 0, 0, 0.05);
  --btn-inset-bot:     rgba(255, 255, 255, 0.50);
  --btn-inner-glow:    rgba(255, 255, 255, 0.20);
  --btn-inner-glow-h:  rgba(255, 255, 255, 0.50);
  --btn-drop:          rgba(0, 0, 0, 0.20);
  --btn-drop-h:        rgba(0, 0, 0, 0.25);
  --btn-outline-arc:   rgba(0, 0, 0, 0.50);
  --btn-outline-fill:  rgba(255, 255, 255, 0.50);
  --btn-outline-inset: rgba(255, 255, 255, 0.50);
  --btn-gloss:         rgba(255, 255, 255, 0.50);
  --btn-shadow-a:      rgba(0, 0, 0, 0.20);
  --btn-shadow-b:      rgba(0, 0, 0, 0.10);
}

:root {
  --explore-w:      min(680px, 88vw);
  --explore-h:      clamp(56px, 8vw, 72px);
  --explore-fs:     clamp(1.2rem, 3vw, 1.65rem);
  --menu-w:         calc(var(--explore-w) * 0.70);
  --menu-h:         clamp(44px, 5.5vw, 56px);
  --menu-fs:        clamp(0.95rem, 2vw, 1.2rem);
  --menu-gap:       clamp(8px, 1.2vw, 14px);
  --menu-count:     5;
  --menu-stack-h:   calc((var(--menu-h) + var(--menu-gap)) * var(--menu-count));
  --explore-shift:  0px;
  --menu-stagger:   70ms;
  --menu-ease-out:  cubic-bezier(0.22, 1, 0.36, 1);
  --menu-ease-in:   cubic-bezier(0.55, 0, 0.35, 1);
  --menu-dur-open:  520ms;
  --menu-dur-close: 400ms;

  --theme-tween-time: 800ms;
  --theme-tween-ease: cubic-bezier(0.4, 0, 0.2, 1);
}

html.is-menu-open {
  --explore-shift: calc(var(--menu-stack-h) / -2 - var(--menu-gap));
}

.snapshot-root {
  position: relative;
  width: 100vw;
  height: 100vh;
  height: 100dvh;
  overflow: hidden;
  background: var(--bg-page);
}

.bg-canvas {
  position: absolute;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  display: block;
  pointer-events: none;
}

.bg-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: rgb(var(--overlay-color));
  opacity: var(--overlay-opacity);
  transition: opacity 600ms ease;
  pointer-events: none;
}

.explore-btn-wrapper {
  position: fixed;
  top: 50%;
  left: 50%;
  z-index: 10;
  width: var(--explore-w);
  height: var(--explore-h);
  transform: translate(-50%, calc(-50% + var(--explore-shift)));
  transition:
    transform var(--menu-dur-open) var(--menu-ease-out),
    opacity   500ms ease;
  pointer-events: none;
}

.explore-btn-wrapper.is-hidden {
  opacity: 0;
  pointer-events: none;
}

.explore-btn-wrapper:not(.is-hidden) {
  animation: explore-fadein 500ms cubic-bezier(0.16, 1, 0.3, 1) both;
  pointer-events: auto;
}

@keyframes explore-fadein {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.menu-wrapper {
  pointer-events: none;
  opacity: 1;
  transition: opacity 220ms ease;
}

html.is-about-open     #explore-wrapper,
html.is-services-open  #explore-wrapper,
html.is-solutions-open #explore-wrapper,
html.is-projects-open  #explore-wrapper,
html.is-contact-open   #explore-wrapper {
  visibility: hidden;
  pointer-events: none;
}

html.is-about-open     #menu-wrapper,
html.is-services-open  #menu-wrapper,
html.is-solutions-open #menu-wrapper,
html.is-projects-open  #menu-wrapper,
html.is-contact-open   #menu-wrapper {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 200ms ease, visibility 0s linear 200ms;
}

.menu-btn-wrapper {
  position: fixed;
  top: 50%;
  left: 50%;
  z-index: 10;
  width: var(--menu-w);
  height: var(--menu-h);

  --menu-target-y:    calc(var(--explore-shift) + var(--explore-h) / 2 + var(--menu-gap) + var(--menu-h) / 2 + (var(--i) * (var(--menu-h) + var(--menu-gap))));
  --menu-collapsed-y: var(--explore-shift);
  --menu-y:           var(--menu-collapsed-y);
  --menu-scale-y:     0;
  --menu-scale-x:     0;
  --menu-opacity:     0;

  transform:
    translate(-50%, calc(-50% + var(--menu-y)))
    scale(var(--menu-scale-x), var(--menu-scale-y));
  transform-origin: 50% 0%;
  opacity: var(--menu-opacity);
  pointer-events: none;

  transition:
    transform var(--menu-dur-close) var(--menu-ease-in),
    opacity   var(--menu-dur-close) var(--menu-ease-in);
  transition-delay: calc((var(--menu-count) - 1 - var(--i)) * var(--menu-stagger));
}

html.is-menu-open .menu-btn-wrapper {
  --menu-y:       var(--menu-target-y);
  --menu-scale-y: 1;
  --menu-scale-x: 1;
  --menu-opacity: 1;

  transition:
    transform var(--menu-dur-open) var(--menu-ease-out),
    opacity   var(--menu-dur-open) var(--menu-ease-out);
  transition-delay: calc(var(--i) * var(--menu-stagger) + 60ms);
}

.menu-btn-wrapper.is-hidden {
  opacity: 0;
  pointer-events: none;
}

html.is-menu-open .menu-btn-wrapper:not(.is-hidden) {
  pointer-events: auto;
}

.button-wrap {
  position: relative;
  z-index: 2;
  width: 100%;
  height: 100%;
  border-radius: 999vw;
  background: transparent;
  pointer-events: none;
  isolation: isolate;
  transition: all var(--anim--hover-time) var(--anim--hover-ease);
}

.explore-btn {
  font-size: var(--explore-fs);
}

.menu-btn {
  font-size: var(--menu-fs);
}

.button-shadow {
  --shadow-cuttoff-fix: 2em;
  position: absolute;
  width:  calc(100% + var(--shadow-cuttoff-fix));
  height: calc(100% + var(--shadow-cuttoff-fix));
  top:    calc(0% - var(--shadow-cuttoff-fix) / 2);
  left:   calc(0% - var(--shadow-cuttoff-fix) / 2);
  filter: blur(clamp(2px, 0.125em, 12px));
  -webkit-filter: blur(clamp(2px, 0.125em, 12px));
  overflow: visible;
  pointer-events: none;
  z-index: 0;
  transition: filter var(--anim--hover-time) var(--anim--hover-ease);
}

.button-shadow::after {
  content: "";
  position: absolute;
  z-index: 0;
  inset: 0;
  border-radius: 999vw;
  background: linear-gradient(180deg, var(--btn-shadow-a), var(--btn-shadow-b));
  width:  calc(100% - var(--shadow-cuttoff-fix) - 0.25em);
  height: calc(100% - var(--shadow-cuttoff-fix) - 0.25em);
  top:    calc(var(--shadow-cuttoff-fix) - 0.5em);
  left:   calc(var(--shadow-cuttoff-fix) - 0.875em);
  padding: 0.125em;
  box-sizing: border-box;
  mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  mask-composite: exclude;
  -webkit-mask-composite: xor;
  transition: all var(--anim--hover-time) var(--anim--hover-ease);
  overflow: visible;
  opacity: 1;
}

.button-wrap button {
  --border-width: clamp(1px, 0.0625em, 4px);
  all: unset;
  cursor: pointer;
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
  pointer-events: auto;
  z-index: 3;
  background: linear-gradient(
    -75deg,
    var(--btn-grad-a),
    var(--btn-grad-b),
    var(--btn-grad-a)
  );
  border-radius: 999vw;
  clip-path: inset(0 round 999vw);
  -webkit-clip-path: inset(0 round 999vw);
  box-shadow:
    inset 0 0.125em 0.125em var(--btn-inset-top),
    inset 0 -0.125em 0.125em var(--btn-inset-bot),
    0 0.25em 0.125em -0.125em var(--btn-drop),
    0 0 0.1em 0.25em inset var(--btn-inner-glow),
    0 0 0 0 rgba(255, 255, 255, 1);
  backdrop-filter: blur(clamp(1px, 0.125em, 4px));
  -webkit-backdrop-filter: blur(clamp(1px, 0.125em, 4px));
  transform: translateZ(0);
  -webkit-transform: translateZ(0);
  transition:
    transform  var(--anim--hover-time) var(--anim--hover-ease),
    box-shadow var(--theme-tween-time) var(--theme-tween-ease),
    background var(--theme-tween-time) var(--theme-tween-ease);
}

.button-wrap button:hover {
  transform: scale(0.985) translateZ(0);
  backdrop-filter: blur(0.01em);
  -webkit-backdrop-filter: blur(0.01em);
  box-shadow:
    inset 0 0.125em 0.125em var(--btn-inset-top),
    inset 0 -0.125em 0.125em var(--btn-inset-bot),
    0 0.15em 0.05em -0.1em var(--btn-drop-h),
    0 0 0.05em 0.1em inset var(--btn-inner-glow-h),
    0 0 0 0 rgba(255, 255, 255, 1);
  transition:
    transform  var(--anim--hover-time) var(--anim--hover-ease),
    box-shadow var(--anim--hover-time) var(--anim--hover-ease),
    background var(--anim--hover-time) var(--anim--hover-ease);
}

.button-wrap button span {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  user-select: none;
  -webkit-user-select: none;
  font-family: var(--font-ui);
  font-weight: 500;
  letter-spacing: 0.03em;
  font-size: 1em;
  color: var(--btn-text);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-shadow: var(--btn-text-shadow);
  transition:
    color       var(--theme-tween-time) var(--theme-tween-ease),
    text-shadow var(--theme-tween-time) var(--theme-tween-ease);
}

.button-wrap button:hover span {
  text-shadow: var(--btn-text-shadow-h);
  transition: text-shadow var(--anim--hover-time) var(--anim--hover-ease);
}

.button-wrap button span::after {
  content: "";
  display: block;
  position: absolute;
  z-index: 1;
  width:  calc(100% - var(--border-width));
  height: calc(100% - var(--border-width));
  top:    calc(0% + var(--border-width) / 2);
  left:   calc(0% + var(--border-width) / 2);
  box-sizing: border-box;
  border-radius: 999vw;
  overflow: clip;
  background: linear-gradient(
    var(--angle-2),
    rgba(255, 255, 255, 0) 0%,
    var(--btn-gloss) 40% 50%,
    rgba(255, 255, 255, 0) 55%
  );
  z-index: 3;
  mix-blend-mode: screen;
  pointer-events: none;
  background-size: 200% 200%;
  background-position: 0% 50%;
  background-repeat: no-repeat;
  transition:
    background-position calc(var(--anim--hover-time) * 1.25) var(--anim--hover-ease),
    background          var(--theme-tween-time) var(--theme-tween-ease),
    --angle-2           calc(var(--anim--hover-time) * 1.25) var(--anim--hover-ease);
}

.button-wrap button:hover span::after {
  background-position: 25% 50%;
}

.button-wrap button:active span::after {
  background-position: 50% 15%;
  --angle-2: -15deg;
}

.button-wrap button::after {
  content: "";
  position: absolute;
  z-index: 1;
  inset: 0;
  border-radius: 999vw;
  width:  calc(100% + var(--border-width));
  height: calc(100% + var(--border-width));
  top:    calc(0% - var(--border-width) / 2);
  left:   calc(0% - var(--border-width) / 2);
  padding: var(--border-width);
  box-sizing: border-box;
  background:
    conic-gradient(
      from var(--angle-1) at 50% 50%,
      var(--btn-outline-arc),
      rgba(0, 0, 0, 0) 5% 40%,
      var(--btn-outline-arc) 50%,
      rgba(0, 0, 0, 0) 60% 95%,
      var(--btn-outline-arc)
    ),
    linear-gradient(180deg, var(--btn-outline-fill), var(--btn-outline-fill));
  mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  mask-composite: exclude;
  transition:
    --angle-1  500ms ease,
    background var(--theme-tween-time) var(--theme-tween-ease),
    box-shadow var(--theme-tween-time) var(--theme-tween-ease);
  box-shadow: inset 0 0 0 calc(var(--border-width) / 2) var(--btn-outline-inset);
}

.button-wrap button:hover::after {
  --angle-1: -125deg;
}

.button-wrap button:active::after {
  --angle-1: -75deg;
}

.button-wrap:has(button:hover) .button-shadow {
  filter: blur(clamp(2px, 0.0625em, 6px));
  -webkit-filter: blur(clamp(2px, 0.0625em, 6px));
  transition: filter var(--anim--hover-time) var(--anim--hover-ease);
}

.button-wrap:has(button:hover) .button-shadow::after {
  top: calc(var(--shadow-cuttoff-fix) - 0.875em);
  opacity: 1;
}

.button-wrap:has(button:active) {
  transform: rotate3d(1, 0, 0, 25deg);
}

.button-wrap:has(button:active) button {
  box-shadow:
    inset 0 0.125em 0.125em var(--btn-inset-top),
    inset 0 -0.125em 0.125em var(--btn-inset-bot),
    0 0.125em 0.125em -0.125em var(--btn-drop),
    0 0 0.1em 0.25em inset var(--btn-inner-glow),
    0 0.225em 0.05em 0 rgba(0, 0, 0, 0.05),
    0 0.25em 0 0 var(--btn-inset-bot),
    inset 0 0.25em 0.05em 0 rgba(0, 0, 0, 0.15);
}

.button-wrap:has(button:active) .button-shadow {
  filter: blur(clamp(2px, 0.125em, 12px));
  -webkit-filter: blur(clamp(2px, 0.125em, 12px));
}

.button-wrap:has(button:active) .button-shadow::after {
  top: calc(var(--shadow-cuttoff-fix) - 0.5em);
  opacity: 0.75;
}

.button-wrap:has(button:active) button span {
  text-shadow: var(--btn-text-shadow-a);
}

.site-logo {
  position: fixed;
  top:  clamp(1rem, 3vw, 1.75rem);
  left: clamp(1rem, 3vw, 1.75rem);
  z-index: 100;

  display: inline-flex;
  align-items: center;
  justify-content: center;

  height: clamp(60px, 7.5vw, 80px);
  width:  auto;

  text-decoration: none;
  color: inherit;
  -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
  cursor: pointer;

  transition: transform 200ms var(--ease-smooth, cubic-bezier(0.4, 0, 0.2, 1));
}

.site-logo:hover {
  transform: scale(0.97);
}

.site-logo:active {
  transform: scale(0.94);
}

.site-logo:focus-visible {
  outline: 2px solid var(--btn-outline-arc);
  outline-offset: 6px;
  border-radius: 6px;
}

.site-logo__img {
  height: 100%;
  width: auto;
  display: block;
  pointer-events: none;
  user-select: none;
  -webkit-user-select: none;
  transition: opacity var(--theme-tween-time, 800ms) var(--theme-tween-ease, cubic-bezier(0.4, 0, 0.2, 1));
}

[data-theme="light"] .site-logo__img--dark  { display: none; }
[data-theme="dark"]  .site-logo__img--light { display: none; }

.corner-toggles {
  position: fixed;
  bottom: clamp(1rem, 3vw, 1.75rem);
  right:  clamp(1rem, 3vw, 1.75rem);
  z-index: 100;
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: clamp(0.5rem, 1.2vw, 0.85rem);
  font-size: clamp(0.9rem, 1.4vw, 1.1rem);
}

.lang-toggle-wrapper,
.theme-toggle-wrapper {
  position: relative;
  width:  clamp(44px, 5.6vw, 54px);
  height: clamp(44px, 5.6vw, 54px);
}

.lang-toggle-wrap,
.theme-toggle-wrap {
  cursor: pointer;
}

.button-wrap.lang-toggle-wrap button,
.button-wrap.theme-toggle-wrap button {
  border-radius: 50%;
  clip-path: inset(0 round 50%);
  -webkit-clip-path: inset(0 round 50%);
}

.button-wrap.lang-toggle-wrap button::after,
.button-wrap.theme-toggle-wrap button::after {
  border-radius: 50%;
}

.button-wrap.lang-toggle-wrap button span,
.button-wrap.theme-toggle-wrap button span {
  border-radius: 50%;
}

.button-wrap.lang-toggle-wrap button span::after,
.button-wrap.theme-toggle-wrap button span::after {
  border-radius: 50%;
}

.button-wrap.lang-toggle-wrap .button-shadow,
.button-wrap.theme-toggle-wrap .button-shadow {
  border-radius: 50%;
}

.lang-toggle__label {
  font-size: clamp(0.72rem, 1.3vw, 0.88rem);
  letter-spacing: 0.08em;
}

.theme-toggle__icons {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
  z-index: 4;
}

.toggle-icon {
  position: absolute;
  width: clamp(16px, 2.4vw, 20px);
  height: auto;
  color: var(--btn-text);
  transition:
    opacity   300ms ease,
    transform 400ms cubic-bezier(0.16, 1, 0.3, 1),
    color     var(--theme-tween-time) var(--theme-tween-ease);
}

[data-theme="dark"]  .toggle-icon--moon { opacity: 1; transform: rotate(0deg);   }
[data-theme="dark"]  .toggle-icon--sun  { opacity: 0; transform: rotate(90deg);  }
[data-theme="light"] .toggle-icon--sun  { opacity: 1; transform: rotate(0deg);   }
[data-theme="light"] .toggle-icon--moon { opacity: 0; transform: rotate(-90deg); }

@media (max-width: 600px) {
  :root {
    --explore-w:  88vw;
    --explore-h:  clamp(52px, 15vw, 62px);
    --explore-fs: clamp(1.05rem, 4.2vw, 1.4rem);
    --menu-w:     calc(var(--explore-w) * 0.78);
    --menu-h:     clamp(40px, 11vw, 48px);
    --menu-fs:    clamp(0.9rem, 3.4vw, 1.05rem);
    --menu-gap:   6px;
  }
  .corner-toggles {
    bottom: 1rem;
    right: 1rem;
    gap: 0.5rem;
  }
  .lang-toggle-wrapper,
  .theme-toggle-wrapper {
    width:  44px;
    height: 44px;
  }
  .site-logo {
    top:  1rem;
    left: 1rem;
    height: clamp(48px, 14vw, 60px);
  }
}

@media (min-width: 1600px) {
  :root {
    --explore-w:  780px;
    --explore-h:  80px;
    --explore-fs: 1.75rem;
    --menu-w:     calc(780px * 0.70);
    --menu-h:     60px;
    --menu-fs:    1.25rem;
  }
}

@media (max-height: 640px) {
  :root {
    --menu-h:   clamp(38px, 8vh, 46px);
    --menu-gap: clamp(4px, 0.8vh, 8px);
  }
}

@media (prefers-reduced-motion: reduce) {
  html,
  .toggle-icon, .bg-canvas, .bg-overlay,
  .corner-toggles,
  .lang-toggle-wrapper, .theme-toggle-wrapper,
  .explore-btn-wrapper, .menu-btn-wrapper,
  .button-wrap, .button-wrap button, .button-wrap button::after,
  .button-wrap button span, .button-wrap button span::after,
  .button-shadow,
  .site-logo, .site-logo__img { transition: none; }

  .menu-btn-wrapper { transition-delay: 0ms !important; }
  html.is-menu-open .menu-btn-wrapper { transition-delay: 0ms !important; }
}