/* SANSA AI OS — Premium Classic Creative Cloud Shell */
@import url("sansa-tokens.css");

/* ── Base shell ── */
body.sansa-os {
  margin: 0;
  color: var(--sansa-text);
  background: var(--sansa-bg);
  min-height: 100vh;
  font-family: var(--sansa-font);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ── Promo bar (cinematic gradient) ── */
body.sansa-os .promo-bar {
  min-height: var(--sansa-promo-h);
  background: var(--sansa-promo-bg);
  border-bottom: 1px solid var(--sansa-border);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  padding: 8px 20px;
  gap: 12px;
}

body.sansa-os .promo-button {
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.28);
  color: #fff;
  border-radius: var(--sansa-radius-pill);
  min-height: 32px;
  padding: 0 16px;
  font-size: 12px;
  font-weight: 700;
  transition: opacity var(--sansa-duration) var(--sansa-ease);
}

body.sansa-os .promo-button:hover {
  opacity: 0.88;
}

/* ── App grid ── */
.os-app {
  display: grid;
  grid-template-columns: var(--sansa-sidebar-w) 1fr;
  min-height: calc(100vh - var(--sansa-promo-h));
}

/* ── Sidebar ── */
.os-sidebar {
  position: sticky;
  top: var(--sansa-promo-h);
  height: calc(100vh - var(--sansa-promo-h));
  padding: var(--sansa-space-5) var(--sansa-space-4);
  border-right: 1px solid var(--sansa-border);
  background: var(--sansa-bg-sidebar);
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: rgba(0, 0, 0, 0.12) transparent;
}

.os-sidebar-brand {
  display: flex;
  align-items: center;
  gap: var(--sansa-space-3);
  padding: var(--sansa-space-2) var(--sansa-space-3) var(--sansa-space-6);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: -0.01em;
  color: var(--sansa-text);
}

.os-sidebar-brand span.mark {
  width: 32px;
  height: 32px;
  border-radius: var(--sansa-radius-sm);
  background: linear-gradient(135deg, var(--sansa-accent), var(--sansa-purple));
  box-shadow: var(--sansa-shadow-sm);
  flex-shrink: 0;
}

.os-nav-group {
  margin-bottom: var(--sansa-space-6);
}

.os-nav-label {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--sansa-text-muted);
  padding: 0 var(--sansa-space-3) var(--sansa-space-2);
  font-weight: 600;
}

.os-nav-item {
  display: flex;
  align-items: center;
  gap: var(--sansa-space-3);
  width: 100%;
  border: 1px solid transparent;
  background: transparent;
  color: var(--sansa-text-muted);
  text-align: left;
  padding: 10px var(--sansa-space-3);
  border-radius: var(--sansa-radius-md);
  font-weight: 500;
  font-size: 14px;
  cursor: pointer;
  transition:
    background var(--sansa-duration) var(--sansa-ease),
    color var(--sansa-duration) var(--sansa-ease),
    border-color var(--sansa-duration) var(--sansa-ease),
    transform var(--sansa-duration) var(--sansa-ease);
}

.os-nav-item:hover {
  color: var(--sansa-text);
  background: var(--sansa-glass);
  border-color: var(--sansa-border);
}

.os-nav-item.active {
  color: var(--sansa-accent);
  background: var(--sansa-accent-soft);
  border-color: var(--sansa-border-accent);
  box-shadow: none;
}

.os-nav-icon {
  width: 32px;
  height: 32px;
  border-radius: var(--sansa-radius-sm);
  display: grid;
  place-items: center;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: -0.02em;
  background: var(--sansa-glass);
  border: 1px solid var(--sansa-border);
  color: var(--sansa-text-secondary);
  flex-shrink: 0;
  transition: background var(--sansa-duration) var(--sansa-ease);
}

.os-nav-item.active .os-nav-icon {
  background: var(--sansa-accent-soft);
  border-color: var(--sansa-border-accent);
  color: var(--sansa-accent);
}

/* ── Main area ── */
.os-main {
  min-width: 0;
}

/* ── Navbar ── */
body.sansa-os .site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  min-height: var(--sansa-header-h);
  background: var(--sansa-bg-navbar);
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  border-bottom: 1px solid var(--sansa-border);
  color: var(--sansa-text);
  padding: 0 var(--sansa-page-px);
  gap: var(--sansa-space-5);
  flex-wrap: nowrap;
  align-items: center;
}

body.sansa-os .top-nav {
  display: flex;
  align-items: center;
  flex-wrap: nowrap;
  flex: 1;
  min-width: 0;
  gap: var(--sansa-space-2);
  overflow-x: auto;
  scrollbar-width: none;
}

body.sansa-os .top-nav::-webkit-scrollbar {
  display: none;
}

body.sansa-os .brand {
  color: var(--sansa-brand-red);
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -0.02em;
}

body.sansa-os .brand img {
  border-radius: var(--sansa-radius-sm);
}

body.sansa-os .top-nav .nav-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--sansa-text-muted);
  font-weight: 500;
  font-size: 14px;
  line-height: 1.2;
  min-height: 40px;
  border-radius: var(--sansa-radius-sm);
  padding: 0 var(--sansa-space-3);
  flex-shrink: 0;
  white-space: nowrap;
  text-decoration: none;
  box-sizing: border-box;
  transition: color var(--sansa-duration) var(--sansa-ease),
    background var(--sansa-duration) var(--sansa-ease);
}

body.sansa-os .top-nav .nav-link::after {
  display: none;
}

body.sansa-os .top-nav .nav-link:hover,
body.sansa-os .top-nav .nav-link.active {
  color: var(--sansa-text);
  background: var(--sansa-glass);
}

/* ── Buttons ── */
body.sansa-os .primary-button {
  background: var(--sansa-accent);
  border: 0;
  color: #fff;
  border-radius: var(--sansa-radius-pill);
  min-height: 40px;
  padding: 0 22px;
  font-weight: 700;
  font-size: 14px;
  box-shadow: var(--sansa-shadow-sm);
  transition:
    transform var(--sansa-duration) var(--sansa-ease),
    box-shadow var(--sansa-duration) var(--sansa-ease),
    background var(--sansa-duration) var(--sansa-ease);
}

body.sansa-os .primary-button:hover {
  transform: translateY(-1px);
  background: var(--sansa-accent-hover);
  box-shadow: var(--sansa-shadow-accent);
}

body.sansa-os .ghost-button,
body.sansa-os .outline-dark {
  background: rgba(255, 255, 255, 0.08);
  border: 1.5px solid rgba(255, 255, 255, 0.2);
  color: var(--sansa-text);
  border-radius: var(--sansa-radius-pill);
  min-height: 40px;
  padding: 0 18px;
  font-weight: 700;
  font-size: 14px;
  transition:
    border-color var(--sansa-duration) var(--sansa-ease),
    background var(--sansa-duration) var(--sansa-ease);
}

body.sansa-os .ghost-button:hover,
body.sansa-os .outline-dark:hover {
  border-color: var(--sansa-accent);
  background: var(--sansa-accent-soft);
}

/* ── Header actions ── */
.os-top-actions {
  display: flex;
  align-items: center;
  gap: var(--sansa-space-3);
}

.os-credits {
  font-size: 12px;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: var(--sansa-radius-pill);
  background: var(--sansa-blue-soft);
  border: 1px solid var(--sansa-border-accent);
  color: var(--sansa-accent);
}

.os-search-btn {
  width: 38px;
  height: 38px;
  border-radius: var(--sansa-radius-sm);
  border: 1px solid var(--sansa-border);
  background: var(--sansa-glass);
  color: var(--sansa-text-secondary);
  transition: background var(--sansa-duration) var(--sansa-ease);
  cursor: pointer;
  padding: 0;
}

.os-search-btn svg {
  display: block;
}

.os-search-btn:hover {
  background: var(--sansa-bg-secondary);
  color: var(--sansa-text);
}

/* ── Global search palette ── */
.os-search-modal {
  position: fixed;
  inset: 0;
  z-index: 120;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: calc(var(--sansa-promo-h) + var(--sansa-header-h) + 24px) 16px 24px;
  background: rgba(2, 6, 23, 0.45);
  backdrop-filter: blur(4px);
}

.os-search-modal.hidden {
  display: none !important;
}

.os-search-panel {
  width: min(560px, 100%);
  background: var(--sansa-bg-secondary);
  border: 1px solid var(--sansa-border);
  border-radius: var(--sansa-radius-lg);
  box-shadow: var(--sansa-shadow-lg);
  overflow: hidden;
}

.os-search-head {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  border-bottom: 1px solid var(--sansa-border);
}

.os-search-glyph {
  color: var(--sansa-text-muted);
  display: inline-flex;
  flex-shrink: 0;
}

.os-search-head input {
  flex: 1;
  border: 0;
  background: transparent;
  color: var(--sansa-text);
  font: inherit;
  font-size: 15px;
  outline: none;
  min-width: 0;
}

.os-search-head input::placeholder {
  color: var(--sansa-text-muted);
}

.os-search-kbd {
  font-size: 11px;
  font-weight: 600;
  color: var(--sansa-text-muted);
  border: 1px solid var(--sansa-border);
  border-radius: 6px;
  padding: 2px 6px;
  background: var(--sansa-glass);
}

.os-search-results {
  max-height: min(52vh, 420px);
  overflow-y: auto;
  padding: 8px;
}

.os-search-item {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  border: 0;
  background: transparent;
  color: var(--sansa-text);
  text-align: left;
  padding: 10px 12px;
  border-radius: var(--sansa-radius-md);
  cursor: pointer;
  font: inherit;
  transition: background var(--sansa-duration) var(--sansa-ease);
}

.os-search-item:hover,
.os-search-item:focus-visible {
  background: var(--sansa-glass);
  outline: none;
}

.os-search-icon {
  width: 34px;
  height: 34px;
  border-radius: var(--sansa-radius-sm);
  display: inline-grid;
  place-items: center;
  font-size: 11px;
  font-weight: 700;
  background: var(--sansa-accent-soft);
  border: 1px solid var(--sansa-border-accent);
  color: var(--sansa-accent);
  flex-shrink: 0;
}

.os-search-label {
  font-size: 14px;
  font-weight: 500;
  line-height: 1.3;
}

.os-search-empty {
  margin: 0;
  padding: 18px 12px;
  text-align: center;
  color: var(--sansa-text-muted);
  font-size: 14px;
}

body.sansa-os .icon-grid {
  background: var(--sansa-bg-secondary);
  border: 1px solid var(--sansa-border);
}

body.sansa-os .icon-grid span {
  background: var(--sansa-text);
}

body.sansa-os .avatar-button {
  background: linear-gradient(135deg, var(--sansa-blue), var(--sansa-purple));
  border: 2px solid var(--sansa-border);
}

/* ── Workspace iframe ── */
.os-workspace {
  display: none;
  flex-direction: column;
  height: calc(100vh - var(--sansa-header-h) - var(--sansa-promo-h));
  animation: osFadeIn var(--sansa-duration-slow) var(--sansa-ease);
}

.os-workspace.open {
  display: flex;
}

.os-workspace-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sansa-space-3);
  padding: var(--sansa-space-3) var(--sansa-space-5);
  border-bottom: 1px solid var(--sansa-border);
  background: var(--sansa-bg-secondary);
}

.os-workspace-bar h2 {
  margin: 0;
  font-size: 14px;
  font-weight: 600;
  color: var(--sansa-text);
}

.os-workspace-frame {
  flex: 1;
  border: 0;
  width: 100%;
  background: var(--sansa-bg);
}

/* ── Full-page immersive workspace (Adobe-style) ── */
html.os-immersive,
body.os-immersive {
  overflow: hidden;
  height: 100%;
}

body.os-immersive .promo-bar,
body.os-immersive .os-sidebar,
body.os-immersive .site-header,
body.os-immersive .mega-menu,
body.os-immersive .app-switcher,
body.os-immersive .profile-menu,
body.os-immersive .os-search-modal,
body.os-immersive #app,
body.os-immersive .footer,
body.os-immersive .sansa-sticky-cta {
  display: none !important;
}

body.os-immersive .os-app {
  display: block;
  min-height: 100vh;
  grid-template-columns: 1fr;
}

body.os-immersive .os-main {
  padding: 0;
  margin: 0;
  max-width: none;
}

body.os-immersive .os-workspace.open {
  position: fixed;
  inset: 0;
  z-index: 10050;
  display: flex;
  flex-direction: column;
  width: 100vw;
  height: 100vh;
  height: 100dvh;
  background: #1e1e1e;
  animation: osImmersiveIn 0.38s cubic-bezier(0.16, 1, 0.3, 1);
}

body.os-immersive .os-workspace-bar.os-app-chrome {
  flex-shrink: 0;
  min-height: 52px;
  padding: 0 16px;
  background: #323232;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  color: #f5f5f5;
}

body.os-immersive .os-chrome-left,
body.os-immersive .os-chrome-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

body.os-immersive .os-workspace-bar.os-app-chrome {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

body.os-immersive .os-chrome-back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: none;
  background: transparent;
  color: #f5f5f5;
  font: 600 13px/1 Inter, system-ui, sans-serif;
  cursor: pointer;
  padding: 8px 10px;
  border-radius: 8px;
  transition: background 0.15s ease;
}

body.os-immersive .os-chrome-back:hover {
  background: rgba(255, 255, 255, 0.1);
}

body.os-immersive .os-workspace-badge {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  font: 700 10px/1 Inter, system-ui, sans-serif;
  color: #fff;
  flex-shrink: 0;
}

body.os-immersive .os-workspace-bar h2 {
  margin: 0;
  font: 600 14px/1.2 Inter, system-ui, sans-serif;
  color: #fff;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: min(48vw, 420px);
}

body.os-immersive .os-chrome-credits {
  font: 600 12px/1 Inter, system-ui, sans-serif;
  color: rgba(255, 255, 255, 0.72);
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
}

body.os-immersive .os-chrome-link {
  border: none;
  background: transparent;
  color: rgba(255, 255, 255, 0.85);
  font: 600 12px/1 Inter, system-ui, sans-serif;
  cursor: pointer;
  padding: 8px 10px;
  border-radius: 8px;
}

body.os-immersive .os-chrome-link:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
}

body.os-immersive .os-workspace-frame {
  flex: 1;
  width: 100%;
  min-height: 0;
  background: #1a1a1a;
}

@keyframes osImmersiveIn {
  from {
    opacity: 0;
    transform: scale(0.985);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  body.os-immersive .os-workspace.open {
    animation: none;
  }
}

body.sansa-os #app {
  padding: var(--sansa-space-4) var(--sansa-page-px) var(--sansa-space-12);
  max-width: var(--sansa-max-w);
  margin: 0 auto;
}

/* ── Dropdowns ── */
body.sansa-os .mega-menu,
body.sansa-os .app-switcher,
body.sansa-os .profile-menu {
  background: var(--sansa-bg-secondary);
  border: 1px solid var(--sansa-border);
  color: var(--sansa-text);
  border-radius: var(--sansa-radius-lg);
  box-shadow: var(--sansa-shadow-lg);
  backdrop-filter: blur(16px);
}

body.sansa-os .mega-menu {
  top: calc(var(--sansa-promo-h) + var(--sansa-header-h));
}

body.sansa-os .mega-column h3 {
  color: var(--sansa-text-muted);
  border-bottom-color: var(--sansa-border);
}

body.sansa-os .mega-link small {
  color: var(--sansa-text-muted);
}

body.sansa-os .mega-promo {
  background: var(--sansa-bg-card);
  border-radius: var(--sansa-radius-md);
}

body.sansa-os .app-switcher {
  top: calc(var(--sansa-promo-h) + var(--sansa-header-h) + 8px);
  right: var(--sansa-page-px);
  z-index: 70;
  max-height: min(72vh, 560px);
  overflow-y: auto;
  width: min(420px, calc(100vw - 32px));
}

body.sansa-os .app-switcher .switcher-app {
  display: grid;
  justify-items: center;
  gap: 8px;
  color: var(--sansa-text);
}

body.sansa-os .app-switcher .switcher-app-label {
  color: var(--sansa-text-secondary);
  font-size: 12px;
  line-height: 1.25;
  text-align: center;
}

body.sansa-os .app-switcher h3 {
  margin: 0 0 16px;
  font-size: 15px;
  font-weight: 700;
  color: var(--sansa-text);
}

body.sansa-os .os-credits,
body.sansa-os .ghost-button,
body.sansa-os .primary-button,
body.sansa-os .os-search-btn,
body.sansa-os .icon-grid {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  line-height: 1.2;
}

body.sansa-os .profile-menu {
  color: var(--sansa-text);
}

body.sansa-os .profile-menu a,
body.sansa-os .profile-menu button {
  color: var(--sansa-text-secondary);
}

body.sansa-os .profile-card {
  border-bottom-color: var(--sansa-border);
}

/* ── Footer ── */
body.sansa-os .footer {
  border-top: 1px solid var(--sansa-border);
  background: var(--sansa-bg-sidebar);
  color: var(--sansa-text-muted);
}

/* ── Sidebar toggle (mobile) ── */
.os-sidebar-toggle {
  display: none;
  width: 38px;
  height: 38px;
  border-radius: var(--sansa-radius-sm);
  border: 1px solid var(--sansa-border);
  background: var(--sansa-glass);
  color: var(--sansa-text);
}

@keyframes osFadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 1100px) {
  body.sansa-os .site-header {
    flex-wrap: nowrap;
    padding: 0 var(--sansa-space-4);
  }

  body.sansa-os .top-nav {
    order: 0;
    width: auto;
    flex: 1;
    min-width: 0;
  }
}

@media (max-width: 960px) {
  .os-app { grid-template-columns: 1fr; }

  .os-sidebar {
    position: fixed;
    left: 0;
    top: var(--sansa-promo-h);
    z-index: 60;
    width: min(var(--sansa-sidebar-w), 88vw);
    transform: translateX(-105%);
    transition: transform 0.28s var(--sansa-ease);
    box-shadow: var(--sansa-shadow-lg);
  }

  .os-sidebar.open { transform: translateX(0); }
  .os-sidebar-toggle { display: inline-flex !important; align-items: center; justify-content: center; }

  body.sansa-os .top-nav { display: none; }
}