/*
 * rondonhashi Space design system
 * Shared structural layer for Home, Video, Audio, Voice, Roots, and future services.
 * Product styles keep their own content layouts; this file owns the common shell.
 */

:root {
  --space-bg: #050505;
  --space-bg-deep: #000;
  --space-surface: #090909;
  --space-surface-raised: #101010;
  --space-surface-inverse: #f4f4ef;
  --space-ink: #f4f4ef;
  --space-ink-inverse: #050505;
  --space-muted: #8e8e88;
  --space-muted-bright: #c7c7c0;
  --space-line: rgba(255, 255, 255, 0.16);
  --space-line-strong: rgba(255, 255, 255, 0.46);
  --space-accent: #f4f4ef;
  --space-accent-rgb: 244, 244, 239;
  --space-danger: #ee817c;
  --space-chrome-height: 48px;
  --space-shell-width: 1540px;
  --space-gutter: clamp(14px, 2vw, 30px);
  --space-panel-padding: clamp(22px, 3vw, 42px);
  --space-motion-fast: 180ms;
  --space-motion-ui: 300ms;
  --space-motion-enter: 560ms;
  --space-ease: cubic-bezier(0.18, 0.86, 0.22, 1);
  --space-ease-precise: cubic-bezier(0.22, 1, 0.36, 1);
  --space-font-display: "Russo One", "Arial Narrow", sans-serif;
  --space-font-ui: "Exo 2", ui-sans-serif, system-ui, sans-serif;
}

body.home-page {
  --space-accent: #f4f4ef;
  --space-accent-rgb: 244, 244, 239;
}

body.video-page {
  --space-accent: #9b87ff;
  --space-accent-rgb: 155, 135, 255;
}

body.audio-page {
  --space-accent: #8affe2;
  --space-accent-rgb: 138, 255, 226;
}

body.voice-page {
  --space-accent: #d7ff63;
  --space-accent-rgb: 215, 255, 99;
  --bg: var(--space-bg);
  --bg-deep: var(--space-bg-deep);
  --surface: var(--space-surface);
  --surface-raised: var(--space-surface-raised);
  --ink: var(--space-ink);
  --ink-inverse: var(--space-ink-inverse);
  --muted: var(--space-muted);
  --muted-bright: var(--space-muted-bright);
  --line: var(--space-line);
  --line-strong: var(--space-line-strong);
}

body.roots-page {
  --space-accent: #d6a760;
  --space-accent-rgb: 214, 167, 96;
  --bg: var(--space-bg);
  --panel: var(--space-surface);
  --panel-raised: var(--space-surface-raised);
  --ink: var(--space-ink);
  --ink-inverse: var(--space-ink-inverse);
  --muted: var(--space-muted);
  --muted-2: var(--space-muted);
  --line: var(--space-line);
  --line-strong: var(--space-line-strong);
}

body[data-space-service] {
  color-scheme: dark;
  font-family: var(--space-font-ui);
}

body[data-space-service] :focus-visible {
  outline: 2px solid var(--space-accent);
  outline-offset: 4px;
}

body[data-space-service] ::selection {
  color: var(--space-ink-inverse);
  background: var(--space-accent);
}

.space-system-chrome.system-chrome {
  position: fixed;
  inset: 0 0 auto;
  z-index: 40;
  display: grid;
  width: auto;
  min-height: var(--space-chrome-height);
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  gap: 18px;
  padding: 0 var(--space-gutter);
  color: var(--space-ink);
  background:
    linear-gradient(90deg, rgba(var(--space-accent-rgb), 0.045), transparent 22%),
    rgba(2, 2, 2, 0.9);
  border: 0;
  border-bottom: 1px solid var(--space-line);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.28);
  backdrop-filter: blur(18px) saturate(120%);
}

.space-system-chrome .system-brand {
  display: inline-flex;
  width: fit-content;
  min-width: 0;
  min-height: 44px;
  align-items: center;
  gap: 10px;
  padding: 0;
  color: var(--space-ink);
  font-family: var(--space-font-display);
  font-size: 10px;
  font-weight: 400;
  line-height: 1;
  letter-spacing: 0.12em;
  text-decoration: none;
  white-space: nowrap;
  transition:
    color var(--space-motion-fast) ease,
    opacity var(--space-motion-fast) ease;
}

.space-system-chrome .system-brand:hover {
  color: var(--space-accent);
}

.space-system-chrome .system-brand :is(img, .system-brand-mark) {
  width: 22px;
  min-width: 22px;
  height: 22px;
  object-fit: contain;
  filter: none;
}

.space-system-chrome :is(.system-center, .system-chrome-center) {
  color: var(--space-muted-bright);
  font-family: var(--space-font-ui);
  font-size: 9px;
  font-weight: 850;
  line-height: 1;
  letter-spacing: 0.22em;
  text-align: center;
  text-transform: uppercase;
  white-space: nowrap;
}

.space-system-chrome :is(.system-actions, .system-chrome-actions) {
  display: flex;
  min-width: 0;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
}

.space-system-chrome :is(.system-network, .system-session, .owner-session-button) {
  display: inline-flex;
  min-height: 32px;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin: 0;
  padding: 0 10px;
  color: var(--space-muted-bright);
  background: rgba(255, 255, 255, 0.015);
  border: 1px solid var(--space-line);
  border-radius: 0;
  font-family: var(--space-font-ui);
  font-size: 9px;
  font-weight: 800;
  line-height: 1;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.space-system-chrome :is(.system-network, .system-session) > i {
  width: 6px;
  height: 6px;
  flex: 0 0 auto;
  background: var(--space-accent);
  border-radius: 50%;
  box-shadow: 0 0 14px rgba(var(--space-accent-rgb), 0.58);
}

.space-system-chrome .owner-session-button {
  color: var(--space-ink);
  cursor: pointer;
  transition:
    color var(--space-motion-fast) ease,
    background var(--space-motion-fast) ease,
    border-color var(--space-motion-fast) ease;
}

.space-system-chrome .owner-session-button:not(:disabled):hover {
  color: var(--space-ink-inverse);
  background: var(--space-accent);
  border-color: var(--space-accent);
}

.space-system-chrome .system-network.is-online {
  color: var(--space-accent);
}

.space-system-chrome .system-network.is-online > i {
  background: var(--space-accent);
}

.space-system-chrome .system-network.is-offline {
  color: var(--space-danger);
}

.space-system-chrome .system-network.is-offline > i {
  background: var(--space-danger);
  box-shadow: 0 0 14px color-mix(in srgb, var(--space-danger) 58%, transparent);
}

.space-system-chrome .owner-session-button.is-authenticated {
  color: var(--space-ink-inverse);
  background: var(--space-accent);
  border-color: var(--space-accent);
}

body[data-space-service] :is(.video-shell, .audio-shell, .voice-shell, .roots-shell, .home-shell) {
  width: min(var(--space-shell-width), calc(100% - (var(--space-gutter) * 2)));
  margin-inline: auto;
}

body[data-space-service] :is(.video-shell, .audio-shell, .voice-shell, .roots-shell, .home-shell) {
  padding-top: calc(var(--space-chrome-height) + 24px);
}

body[data-space-service] .space-service-nav {
  position: relative;
  inset: auto;
  z-index: 20;
  display: grid;
  width: 100%;
  min-height: 72px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
  margin: 0 0 18px;
  padding: 0;
  overflow: hidden;
  background: rgba(4, 4, 4, 0.9);
  border: 1px solid var(--space-line-strong);
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.24);
}

body[data-space-service] .space-service-nav > a {
  position: relative;
  display: grid;
  width: auto;
  min-width: 0;
  min-height: 72px;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: clamp(10px, 1.25vw, 18px);
  padding: 14px clamp(14px, 1.7vw, 24px);
  overflow: hidden;
  color: var(--space-muted-bright);
  background: transparent;
  border: 0;
  border-left: 0;
  border-right: 1px solid var(--space-line);
  text-decoration: none;
  isolation: isolate;
  transition:
    color var(--space-motion-ui) var(--space-ease),
    background var(--space-motion-ui) var(--space-ease),
    opacity var(--space-motion-fast) ease;
}

body[data-space-service] .space-service-nav > a:last-child {
  border-right: 0;
}

body[data-space-service] .space-service-nav > a::before {
  position: absolute;
  inset: auto 12px 0;
  z-index: -1;
  height: 2px;
  content: "";
  background: var(--space-accent);
  opacity: 0;
  transform: scaleX(0.25);
  transform-origin: 0 50%;
  transition:
    opacity var(--space-motion-fast) ease,
    transform var(--space-motion-ui) var(--space-ease);
}

body[data-space-service] .space-service-nav > a::after {
  position: absolute;
  inset: 0;
  z-index: -2;
  content: "";
  background:
    linear-gradient(110deg, rgba(var(--space-accent-rgb), 0.13), transparent 58%);
  box-shadow: none;
  opacity: 0;
  transform: translateX(-18%);
  transition:
    opacity var(--space-motion-ui) ease,
    transform var(--space-motion-ui) var(--space-ease);
}

body[data-space-service] .space-service-nav > a:hover,
body[data-space-service] .space-service-nav > a:focus-visible {
  color: var(--space-ink);
}

body[data-space-nav-active] .space-service-nav > a {
  opacity: 0.58;
}

body[data-space-nav-active="video"] .space-service-nav > a[data-service="video"],
body[data-space-nav-active="audio"] .space-service-nav > a[data-service="audio"],
body[data-space-nav-active="voice"] .space-service-nav > a[data-service="voice"],
body[data-space-nav-active="roots"] .space-service-nav > a[data-service="roots"] {
  opacity: 1;
}

body[data-space-service] .space-service-nav > a:hover::before,
body[data-space-service] .space-service-nav > a:focus-visible::before,
body[data-space-service] .space-service-nav > a.is-current::before {
  opacity: 1;
  transform: scaleX(1);
}

body[data-space-service] .space-service-nav > a:hover::after,
body[data-space-service] .space-service-nav > a:focus-visible::after,
body[data-space-service] .space-service-nav > a.is-current::after {
  opacity: 1;
  transform: translateX(0);
}

body[data-space-service] .space-service-nav > a.is-current {
  color: var(--space-ink);
  background: rgba(var(--space-accent-rgb), 0.07);
}

body[data-space-service] .space-service-nav :is(.space-service-index, .service-index) {
  color: var(--space-accent);
  font-family: var(--space-font-ui);
  font-size: 9px;
  font-weight: 900;
  line-height: 1;
  letter-spacing: 0.08em;
}

body[data-space-service] .space-service-nav :is(.space-service-copy, .service-copy) {
  display: grid;
  min-width: 0;
  gap: 3px;
}

body[data-space-service] .space-service-nav :is(.space-service-copy, .service-copy) strong {
  overflow: hidden;
  color: currentColor;
  font-family: var(--space-font-display);
  font-size: 13px;
  font-weight: 400;
  line-height: 1;
  letter-spacing: 0.02em;
  text-overflow: ellipsis;
}

body[data-space-service] .space-service-nav :is(.space-service-copy, .service-copy) small {
  overflow: hidden;
  color: var(--space-muted);
  font-size: 8px;
  font-weight: 800;
  line-height: 1;
  letter-spacing: 0.08em;
  text-overflow: ellipsis;
  text-transform: uppercase;
}

body[data-space-service] .space-service-nav > a:hover small,
body[data-space-service] .space-service-nav > a:focus-visible small,
body[data-space-service] .space-service-nav > a.is-current small {
  color: var(--space-muted-bright);
}

body[data-space-service] .space-service-nav > a > svg {
  width: 17px;
  height: 17px;
  color: currentColor;
  stroke-width: 1.7;
  transition: transform var(--space-motion-ui) var(--space-ease);
}

body[data-space-service] .space-service-nav > a:hover > svg,
body[data-space-service] .space-service-nav > a:focus-visible > svg {
  transform: translate(2px, -2px);
}

.space-page-intro {
  animation: space-system-enter var(--space-motion-enter) var(--space-ease) both;
}

.space-title-lockup {
  display: flex;
  min-width: 0;
  align-items: center;
  gap: clamp(18px, 2.8vw, 42px);
}

.space-page-title {
  display: grid;
  min-width: 0;
  margin: 0;
  gap: 2px;
  color: var(--space-ink);
  line-height: 0.9;
  text-transform: uppercase;
}

.space-page-title > span {
  color: var(--space-muted-bright);
  font-family: var(--space-font-ui);
  font-size: clamp(18px, 2.2vw, 34px);
  font-weight: 430;
  line-height: 1;
  letter-spacing: 0.18em;
}

.space-page-title > strong {
  color: var(--space-ink);
  font-family: var(--space-font-display);
  font-size: clamp(56px, 7vw, 112px);
  font-weight: 400;
  line-height: 0.9;
  letter-spacing: -0.035em;
}

.space-page-title > strong::first-letter {
  color: var(--space-accent);
}

.space-module-row,
.space-section-heading {
  color: var(--space-muted-bright);
  font-family: var(--space-font-ui);
  font-size: 9px;
  font-weight: 850;
  line-height: 1.25;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.space-module-row {
  border-bottom-color: var(--space-line);
}

.space-module-row :is(i, .module-state > i) {
  color: var(--space-accent);
}

.space-panel {
  position: relative;
  border: 1px solid var(--space-line-strong);
  border-radius: 0;
  background:
    linear-gradient(145deg, rgba(var(--space-accent-rgb), 0.035), transparent 42%),
    rgba(7, 7, 7, 0.94);
  box-shadow:
    0 24px 72px rgba(0, 0, 0, 0.34),
    inset 0 1px rgba(255, 255, 255, 0.025);
  clip-path: none;
  animation: space-system-enter var(--space-motion-enter) 80ms var(--space-ease) both;
}

.space-panel[data-space-panel="primary"] {
  border-color: rgba(var(--space-accent-rgb), 0.42);
}

.space-primary-action,
.space-secondary-action {
  min-height: 46px;
  border-radius: 0;
  font-family: var(--space-font-ui);
  font-size: 10px;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition:
    color var(--space-motion-ui) var(--space-ease),
    background var(--space-motion-ui) var(--space-ease),
    border-color var(--space-motion-ui) var(--space-ease),
    transform var(--space-motion-ui) var(--space-ease);
}

.space-primary-action {
  color: var(--space-ink-inverse);
  background: var(--space-accent);
  border: 1px solid var(--space-accent);
}

.space-secondary-action {
  color: var(--space-ink);
  background: transparent;
  border: 1px solid var(--space-line-strong);
}

.space-primary-action:hover,
.space-primary-action:focus-visible,
.space-secondary-action:hover,
.space-secondary-action:focus-visible {
  transform: translateY(-2px);
}

.space-primary-action:hover,
.space-primary-action:focus-visible {
  background: var(--space-ink);
  border-color: var(--space-ink);
}

.space-secondary-action:hover,
.space-secondary-action:focus-visible {
  color: var(--space-ink-inverse);
  background: var(--space-ink);
  border-color: var(--space-ink);
}

.space-system-chrome .space-icon-action {
  width: 36px;
  min-width: 36px;
  height: 36px;
  min-height: 36px;
  color: var(--space-muted-bright);
  background: transparent;
  border-color: var(--space-line);
}

.space-system-chrome .space-icon-action:hover,
.space-system-chrome .space-icon-action:focus-visible,
.space-system-chrome .space-icon-action.is-active {
  color: var(--space-ink-inverse);
  background: var(--space-accent);
  border-color: var(--space-accent);
}

@media (hover: none), (pointer: coarse) {
  .space-system-chrome .space-icon-action {
    width: 44px;
    min-width: 44px;
    max-width: 44px;
    height: 44px;
    min-height: 44px;
  }
}

html.a11y-mode {
  --space-bg: #000;
  --space-bg-deep: #000;
  --space-surface: #000;
  --space-surface-raised: #050505;
  --space-ink: #fff;
  --space-ink-inverse: #000;
  --space-muted: #fff;
  --space-muted-bright: #fff;
  --space-line: rgba(255, 255, 255, 0.72);
  --space-line-strong: #fff;
  --space-accent: #fff;
  --space-accent-rgb: 255, 255, 255;
}

html.a11y-mode body[data-space-service] {
  --space-accent: #fff;
  --space-accent-rgb: 255, 255, 255;
  --accent: #fff;
  --accent-rgb: 255, 255, 255;
  color: #fff;
  background: #000;
}

html.a11y-mode body[data-space-service] .space-system-chrome.system-chrome {
  min-height: 56px;
  background: #000;
  border-bottom: 2px solid #fff;
  backdrop-filter: none;
}

html.a11y-mode body[data-space-service] .space-system-chrome .system-brand {
  min-height: 52px;
}

html.a11y-mode body[data-space-service] .space-system-chrome .space-icon-action {
  width: 46px;
  min-width: 46px;
  height: 46px;
  min-height: 46px;
}

html.a11y-mode body[data-space-service] :is(.video-shell, .audio-shell, .voice-shell, .roots-shell, .home-shell) {
  padding-top: 80px;
}

html.a11y-mode body[data-space-service] .space-service-nav {
  border: 2px solid #fff;
}

html.a11y-mode body[data-space-service] .space-service-nav > a {
  min-height: 80px;
  color: #fff;
  border-right: 2px solid #fff;
}

html.a11y-mode body[data-space-service] .space-service-nav > a:last-child {
  border-right: 0;
}

html.a11y-mode body[data-space-service] .space-service-nav > a.is-current {
  color: #000;
  background: #fff;
}

html.a11y-mode body[data-space-service] .space-service-nav > a.is-current :is(small, .space-service-index, .service-index) {
  color: #000;
}

html.a11y-mode .space-panel {
  color: #fff;
  background: #000;
  border: 2px solid #fff;
  box-shadow: none;
}

html.a11y-mode .space-page-title > :is(span, strong) {
  color: #fff;
}

html.a11y-mode :is(.space-page-intro, .space-panel) {
  animation: none !important;
  transition: none !important;
}

html.page-hidden :is(.space-page-intro, .space-panel, .space-service-nav *) {
  animation-play-state: paused !important;
}

@keyframes space-system-enter {
  from {
    opacity: 0;
    transform: translateY(18px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 900px) {
  :root {
    --space-gutter: 14px;
  }

  .space-system-chrome.system-chrome {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 10px;
  }

  .space-system-chrome :is(.system-center, .system-chrome-center) {
    display: none;
  }

  body[data-space-service] .space-service-nav {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  body[data-space-service] .space-service-nav > a:nth-child(2) {
    border-right: 0;
  }

  body[data-space-service] .space-service-nav > a:nth-child(-n + 2) {
    border-bottom: 1px solid var(--space-line);
  }

  .space-title-lockup {
    align-items: flex-start;
  }
}

@media (max-width: 560px) {
  :root {
    --space-gutter: 8px;
    --space-chrome-height: 48px;
  }

  .space-system-chrome.system-chrome {
    padding-inline: 9px;
  }

  .space-system-chrome .system-brand span {
    max-width: 112px;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .space-system-chrome :is(.system-network, .system-session) {
    max-width: 92px;
    padding-inline: 7px;
    overflow: hidden;
  }

  .space-system-chrome :is(.system-network, .system-session) :is(b, span) {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  body[data-space-service] .space-service-nav {
    margin-bottom: 10px;
  }

  body[data-space-service] .space-service-nav > a {
    min-height: 62px;
    gap: 9px;
    padding: 11px 12px;
  }

  body[data-space-service] .space-service-nav > a > svg {
    width: 15px;
    height: 15px;
  }

  .space-title-lockup {
    gap: 16px;
  }

  .space-page-title > span {
    font-size: clamp(15px, 5.5vw, 22px);
  }

  .space-page-title > strong {
    font-size: clamp(46px, 15vw, 72px);
  }
}

@media (max-width: 360px) {
  .space-system-chrome .system-brand span {
    display: none;
  }

  body[data-space-service] .space-service-nav :is(.space-service-copy, .service-copy) strong {
    font-size: 12px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .space-page-intro,
  .space-panel {
    animation: none !important;
  }

  body[data-space-service] .space-service-nav *,
  .space-primary-action,
  .space-secondary-action,
  .space-system-chrome * {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}

@media (forced-colors: active) {
  .space-system-chrome.system-chrome,
  body[data-space-service] .space-service-nav,
  .space-panel {
    border-color: CanvasText;
  }
}

@media print {
  .space-system-chrome.system-chrome,
  body[data-space-service] .space-service-nav {
    display: none !important;
  }

  body[data-space-service] :is(.video-shell, .audio-shell, .voice-shell, .roots-shell, .home-shell) {
    width: 100%;
    padding-top: 0;
  }
}