* {
  box-sizing: border-box;
}

html {
  min-width: 0;
  background: var(--color-background);
}

body {
  min-width: 0;
  margin: 0;
  background: var(--color-background);
  color: var(--color-text);
  font-family: var(--font-family-base);
  font-size: var(--font-size-body);
  line-height: var(--line-height-base);
  letter-spacing: 0;
  overflow-x: hidden;
}

a {
  color: inherit;
}

button,
input,
select,
textarea {
  font: inherit;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  top: var(--space-4);
  left: var(--space-4);
  z-index: 1000;
  transform: translateY(-160%);
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  padding: 0 var(--space-4);
  border-radius: var(--radius-pill);
  background: var(--color-primary);
  color: #fff;
  font-weight: 800;
  text-decoration: none;
}

.skip-link:focus {
  transform: translateY(0);
  outline: none;
  box-shadow: var(--shadow-focus);
}

:focus-visible {
  outline: 0;
  box-shadow: var(--shadow-focus);
}

.institution-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: var(--layout-sidebar-width) minmax(0, 1fr);
}

.institution-sidebar {
  position: sticky;
  top: 0;
  align-self: start;
  height: 100vh;
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: var(--space-5);
  padding: var(--space-6) var(--space-5);
  background: var(--color-surface);
  border-right: 1px solid var(--color-border);
  overflow-y: auto;
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  min-width: 0;
}

.brand-mark {
  width: 44px;
  height: 44px;
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-large);
  background: linear-gradient(135deg, #fff, var(--color-primary-soft));
  color: var(--color-primary);
  border: 1px solid #FFD8E4;
}

.brand-copy {
  min-width: 0;
}

.brand-name {
  margin: 0;
  font-size: 24px;
  line-height: 1.1;
  font-weight: 900;
  color: var(--color-primary);
}

.brand-subtitle {
  margin: 3px 0 0;
  color: var(--color-text-subtle);
  font-size: 12px;
  line-height: 1.35;
}

.shell-nav,
.sidebar-secondary {
  display: grid;
  gap: var(--space-2);
}

.nav-link {
  position: relative;
  min-height: 46px;
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border: 1px solid transparent;
  border-radius: var(--radius-medium);
  color: var(--color-text-muted);
  font-size: 15px;
  font-weight: 800;
  text-decoration: none;
  transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
}

.nav-link svg {
  width: 20px;
  height: 20px;
  flex: 0 0 auto;
}

.nav-link:hover {
  border-color: #FFD5E1;
  background: var(--color-primary-surface);
  color: var(--color-primary-hover);
}

.nav-link[aria-current="page"] {
  background: var(--color-primary-soft);
  color: var(--color-primary);
  border-color: #FFD1DF;
}

.nav-link.is-disabled {
  color: var(--color-text-subtle);
  cursor: not-allowed;
  opacity: 0.72;
}

.nav-link.is-disabled:hover {
  background: transparent;
  border-color: transparent;
  color: var(--color-text-subtle);
}

.nav-label {
  min-width: 0;
  overflow-wrap: anywhere;
}

.ready-chip {
  margin-left: auto;
  padding: 2px 7px;
  border-radius: var(--radius-pill);
  background: var(--color-warning-soft);
  color: #8B4E05;
  font-size: 11px;
  font-weight: 900;
  white-space: nowrap;
}

.sidebar-footer {
  display: grid;
  gap: var(--space-3);
}

.mvp-note {
  padding: var(--space-4);
  border: 1px solid #FFD6E2;
  border-radius: var(--radius-large);
  background: var(--color-primary-surface);
}

.mvp-note strong {
  display: block;
  color: var(--color-primary);
  font-size: 14px;
}

.mvp-note span {
  display: block;
  margin-top: 4px;
  color: var(--color-text-muted);
  font-size: 12px;
  line-height: 1.45;
}

.shell-main {
  min-width: 0;
  display: grid;
  grid-template-rows: auto 1fr;
}

.institution-header {
  position: sticky;
  top: 0;
  z-index: 20;
  min-height: var(--layout-header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-4) var(--space-8);
  background: rgba(250, 250, 251, 0.92);
  border-bottom: 1px solid var(--color-border);
  backdrop-filter: blur(16px);
}

.header-title {
  min-width: 0;
}

.header-kicker {
  margin: 0;
  color: var(--color-text-subtle);
  font-size: 13px;
  font-weight: 700;
}

.header-title h1 {
  margin: 2px 0 0;
  font-size: 24px;
  line-height: var(--line-height-tight);
}

.header-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-3);
  min-width: 0;
}

.icon-button,
.profile-button {
  min-height: 44px;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text);
  border-radius: var(--radius-pill);
  box-shadow: 0 2px 8px rgba(34, 34, 34, 0.03);
}

.icon-button {
  width: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.icon-button svg {
  width: 20px;
  height: 20px;
}

.notification-dot {
  position: absolute;
  top: 8px;
  right: 8px;
  min-width: 16px;
  height: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-pill);
  background: var(--color-primary);
  color: #fff;
  font-size: 10px;
  font-weight: 900;
}

.profile-button {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  min-width: 44px;
  max-width: 300px;
  padding: 4px var(--space-3) 4px 5px;
}

.avatar {
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--color-primary-soft);
  color: var(--color-primary);
  font-weight: 900;
}

.profile-copy {
  min-width: 0;
  text-align: left;
}

.profile-copy strong,
.profile-copy span {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.profile-copy strong {
  font-size: 14px;
}

.profile-copy span {
  color: var(--color-text-subtle);
  font-size: 12px;
}

.institution-content {
  width: min(var(--layout-content-max), calc(100% - var(--space-16)));
  margin: 0 auto;
  padding: var(--space-8) 0 var(--space-16);
}

.mobile-bottom-nav {
  display: none;
}

.mobile-top-brand {
  display: none;
}

@media (max-width: 1199px) and (min-width: 769px) {
  .institution-shell {
    grid-template-columns: var(--layout-sidebar-collapsed-width) minmax(0, 1fr);
  }

  .institution-sidebar {
    z-index: 30;
    overflow: visible;
    padding: var(--space-5) var(--space-2);
  }

  .brand {
    justify-content: center;
  }

  .brand-mark {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-medium);
  }

  .brand-copy,
  .nav-label,
  .ready-chip,
  .mvp-note span {
    display: none;
  }

  .nav-link {
    min-height: 48px;
    justify-content: center;
    padding: var(--space-3) var(--space-2);
  }

  .nav-link::after {
    position: absolute;
    left: calc(100% + 8px);
    top: 50%;
    z-index: 60;
    transform: translateY(-50%) translateX(-4px);
    max-width: 180px;
    padding: 7px 10px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-medium);
    background: var(--color-surface);
    box-shadow: var(--shadow-popover);
    color: var(--color-text);
    content: attr(data-label);
    font-size: 13px;
    font-weight: 900;
    line-height: 1.25;
    opacity: 0;
    pointer-events: none;
    white-space: nowrap;
    transition: opacity var(--transition-fast), transform var(--transition-fast);
  }

  .nav-link:hover::after,
  .nav-link:focus-visible::after {
    transform: translateY(-50%) translateX(0);
    opacity: 1;
  }

  .mvp-note {
    display: grid;
    place-items: center;
    padding: var(--space-2);
    text-align: center;
  }

  .mvp-note::before {
    width: 44px;
    height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-large);
    background: var(--color-primary-soft);
    color: var(--color-primary);
    content: "MVP";
    font-size: 12px;
    font-weight: 900;
  }

  .mvp-note strong {
    display: none;
  }
}

@media (max-width: 768px) {
  body {
    padding-bottom: calc(var(--layout-mobile-nav-height) + env(safe-area-inset-bottom, 0px));
  }

  .institution-shell {
    display: block;
    min-height: 100vh;
  }

  .institution-sidebar {
    display: none;
  }

  .institution-header {
    min-height: 92px;
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    grid-template-areas:
      "brand actions"
      "title title";
    align-items: center;
    padding: var(--space-3) var(--space-4);
  }

  .mobile-top-brand {
    grid-area: brand;
    display: flex;
    align-items: center;
    gap: var(--space-2);
    min-width: 0;
  }

  .mobile-top-brand .brand-mark {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-medium);
  }

  .mobile-top-brand .brand-subtitle {
    display: none;
  }

  .mobile-top-brand .brand-name {
    font-size: 22px;
  }

  .header-title {
    grid-area: title;
  }

  .header-title h1 {
    font-size: 20px;
  }

  .header-kicker {
    margin-top: 2px;
    font-size: 12px;
  }

  .header-actions {
    grid-area: actions;
    gap: var(--space-2);
  }

  .demo-return-link { font-size: 0; width: 44px; min-width: 44px; justify-content: center; padding: 0; }
  .demo-return-link::before { content: "↩"; font-size: 18px; }
  .demo-mode-badge { min-height: 26px; padding: 0 8px; font-size: 10px; }

  .profile-copy {
    display: none;
  }

  .profile-button {
    padding: 3px;
  }

  .institution-content {
    width: min(100% - var(--space-5), var(--layout-content-max));
    padding: var(--space-6) 0 var(--space-16);
  }

  .mobile-bottom-nav {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 50;
    height: calc(var(--layout-mobile-nav-height) + env(safe-area-inset-bottom, 0px));
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 0;
    padding: 6px 8px calc(6px + env(safe-area-inset-bottom, 0px));
    background: rgba(255, 255, 255, 0.96);
    border-top: 1px solid var(--color-border);
    box-shadow: 0 -10px 28px rgba(34, 34, 34, 0.08);
    backdrop-filter: blur(16px);
  }

  .mobile-nav-item {
    min-width: 0;
    min-height: 58px;
    display: grid;
    place-items: center;
    gap: 3px;
    padding: 4px 2px;
    border: 1px solid transparent;
    border-radius: var(--radius-large);
    color: var(--color-text-muted);
    font-size: 11px;
    font-weight: 800;
    text-decoration: none;
  }

  .mobile-nav-item svg {
    width: 21px;
    height: 21px;
  }

  .mobile-nav-item[aria-current="page"] {
    background: var(--color-primary-soft);
    color: var(--color-primary);
  }

  .mobile-nav-item.is-disabled {
    color: var(--color-text-subtle);
    opacity: 0.65;
  }

  .mobile-nav-item .ready-chip {
    display: none;
  }
}

@media (max-width: 420px) {
  .institution-content {
    width: min(100% - var(--space-4), var(--layout-content-max));
  }

  .header-title h1 {
    font-size: 18px;
  }

  .icon-button,
  .profile-button {
    min-height: 44px;
    min-width: 44px;
  }
}
.demo-mode-badge {
  min-height: 30px;
  display: inline-flex;
  align-items: center;
  padding: 0 var(--space-3);
  border-radius: var(--radius-pill);
  background: var(--color-primary-soft);
  color: var(--color-primary);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .08em;
}

.demo-return-link {
  min-width: 44px;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  padding: 0 var(--space-3);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-pill);
  background: #fff;
  color: var(--color-text);
  font-size: 13px;
  font-weight: 800;
  text-decoration: none;
}

.demo-return-link:hover,
.demo-return-link:focus-visible { border-color: var(--color-primary); color: var(--color-primary); }