:root {
  color-scheme: light;
  --blue-700: #0f4f9f;
  --blue-600: #1768c8;
  --blue-100: #eaf3ff;
  --navy-900: #142033;
  --gray-700: #4a586b;
  --gray-500: #758195;
  --gray-300: #d8dee8;
  --gray-200: #edf1f6;
  --gray-100: #f6f8fb;
  --white: #ffffff;
  --green-600: #248464;
  --red-600: #bd3d3d;
  --shadow: 0 16px 38px rgba(20, 32, 51, 0.1);
  --radius: 8px;
  --tap: 48px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background: var(--gray-100);
}

body {
  min-height: 100%;
  margin: 0;
  background: var(--gray-100);
  color: var(--navy-900);
}

button,
input,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

.app-shell {
  min-height: 100vh;
}

.login-page {
  min-height: 100vh;
  display: grid;
  align-items: center;
  padding: 24px 16px;
  background:
    linear-gradient(180deg, rgba(15, 79, 159, 0.09), rgba(246, 248, 251, 0) 48%),
    var(--gray-100);
}

.login-panel {
  width: min(100%, 430px);
  margin: 0 auto;
  background: var(--white);
  border: 1px solid var(--gray-300);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 22px;
}

.brand-lockup {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
}

.brand-mark {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  border-radius: var(--radius);
  background: var(--blue-700);
  color: var(--white);
  font-weight: 800;
  letter-spacing: 0;
}

.brand-name {
  margin: 0;
  font-size: 1.35rem;
  line-height: 1.15;
  font-weight: 800;
}

.tagline {
  margin: 4px 0 0;
  color: var(--gray-700);
  line-height: 1.35;
}

.form-stack {
  display: grid;
  gap: 14px;
}

.field {
  display: grid;
  gap: 6px;
}

.field span,
.field label {
  color: var(--gray-700);
  font-size: 0.88rem;
  font-weight: 700;
}

.input,
.select {
  min-height: var(--tap);
  width: 100%;
  border: 1px solid var(--gray-300);
  border-radius: var(--radius);
  background: var(--white);
  color: var(--navy-900);
  padding: 0 13px;
  outline: none;
}

.textarea {
  min-height: 92px;
  resize: vertical;
  padding: 12px 13px;
}

.input:focus,
.select:focus,
.textarea:focus {
  border-color: var(--blue-600);
  box-shadow: 0 0 0 3px rgba(23, 104, 200, 0.16);
}

.primary-button,
.secondary-button,
.ghost-button,
.danger-button,
.icon-button {
  min-height: var(--tap);
  border: 0;
  border-radius: var(--radius);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 0 14px;
  font-size: 0.98rem;
  font-weight: 800;
  text-decoration: none;
  transition: transform 140ms ease, background 140ms ease, border 140ms ease;
}

.primary-button {
  background: var(--blue-700);
  color: var(--white);
}

.secondary-button {
  background: var(--blue-100);
  color: var(--blue-700);
}

.ghost-button {
  background: var(--white);
  border: 1px solid var(--gray-300);
  color: var(--navy-900);
}

.danger-button {
  background: #fff1f1;
  color: var(--red-600);
}

.icon-button {
  min-width: var(--tap);
  width: var(--tap);
  padding: 0;
  background: var(--white);
  border: 1px solid var(--gray-300);
  color: var(--navy-900);
}

.primary-button:active,
.secondary-button:active,
.ghost-button:active,
.danger-button:active,
.icon-button:active {
  transform: translateY(1px);
}

.button-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.button-row > * {
  flex: 1 1 160px;
}

.app-layout {
  min-height: 100vh;
  padding-bottom: 80px;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(15, 79, 159, 0.97);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.16);
}

.topbar-inner {
  width: min(1120px, 100%);
  margin: 0 auto;
  padding: 10px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.topbar .brand-lockup {
  margin: 0;
  min-width: 0;
  color: var(--white);
}

.topbar .brand-mark {
  width: 38px;
  height: 38px;
  font-size: 0.85rem;
  background: var(--white);
  color: var(--blue-700);
}

.topbar .brand-name {
  font-size: 1rem;
  color: var(--white);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.topbar .tagline {
  display: none;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.role-chip {
  min-height: 32px;
  display: inline-flex;
  align-items: center;
  padding: 0 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.16);
  color: var(--white);
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
}

.ghostless {
  border: 0;
  background: transparent;
  padding: 0;
  text-align: left;
}

.topbar .icon-button {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.28);
  color: var(--white);
}

.content {
  width: min(1120px, 100%);
  margin: 0 auto;
  padding: 18px 16px 28px;
}

.page-header {
  display: grid;
  gap: 7px;
  margin-bottom: 16px;
}

.page-title-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.page-title {
  margin: 0;
  font-size: clamp(1.45rem, 4vw, 2rem);
  line-height: 1.12;
  font-weight: 850;
  letter-spacing: 0;
}

.page-subtitle {
  margin: 0;
  color: var(--gray-700);
  line-height: 1.45;
}

.search-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 54px;
  border: 1px solid var(--gray-300);
  border-radius: var(--radius);
  background: var(--white);
  padding: 0 12px;
  box-shadow: 0 8px 18px rgba(20, 32, 51, 0.05);
}

.search-bar svg {
  color: var(--gray-500);
  flex: 0 0 auto;
}

.search-bar input {
  min-width: 0;
  flex: 1 1 auto;
  width: auto;
  border: 0;
  outline: none;
  color: var(--navy-900);
  background: transparent;
  font-size: 1rem;
}

.search-bar .secondary-button {
  flex: 0 0 auto;
  min-width: 78px;
}

.action-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-top: 14px;
}

.action-card {
  min-height: 86px;
  display: grid;
  grid-template-columns: 48px 1fr auto;
  align-items: center;
  gap: 13px;
  width: 100%;
  padding: 14px;
  border: 1px solid var(--gray-300);
  border-radius: var(--radius);
  background: var(--white);
  color: var(--navy-900);
  text-align: left;
  box-shadow: 0 8px 22px rgba(20, 32, 51, 0.06);
}

.action-icon {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  border-radius: var(--radius);
  background: var(--blue-100);
  color: var(--blue-700);
}

.action-title {
  display: block;
  font-size: 1.05rem;
  line-height: 1.2;
  font-weight: 850;
}

.action-copy {
  display: block;
  margin-top: 3px;
  color: var(--gray-700);
  line-height: 1.35;
  font-size: 0.9rem;
}

.panel {
  background: var(--white);
  border: 1px solid var(--gray-300);
  border-radius: var(--radius);
  box-shadow: 0 8px 22px rgba(20, 32, 51, 0.06);
}

.panel-pad {
  padding: 14px;
}

.split-layout {
  display: grid;
  gap: 16px;
}

.folder-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.folder-button {
  min-height: 62px;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px;
  border: 1px solid var(--gray-300);
  border-radius: var(--radius);
  background: var(--white);
  color: var(--navy-900);
  text-align: left;
}

.folder-button.is-active {
  border-color: var(--blue-600);
  background: var(--blue-100);
  color: var(--blue-700);
}

.folder-left {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.folder-label {
  font-weight: 850;
  overflow-wrap: anywhere;
}

.file-list {
  display: grid;
}

.file-row,
.result-row,
.recent-row {
  display: grid;
  grid-template-columns: 38px 1fr auto;
  align-items: center;
  gap: 11px;
  min-height: 68px;
  padding: 10px 12px;
  border-bottom: 1px solid var(--gray-200);
}

.file-row:last-child,
.result-row:last-child,
.recent-row:last-child {
  border-bottom: 0;
}

.file-icon {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: var(--radius);
  background: var(--gray-100);
  color: var(--blue-700);
}

.row-main {
  min-width: 0;
}

.row-title {
  display: block;
  font-weight: 850;
  line-height: 1.25;
  overflow-wrap: anywhere;
}

.row-meta {
  display: block;
  margin-top: 2px;
  color: var(--gray-700);
  font-size: 0.85rem;
  line-height: 1.35;
}

.row-actions {
  display: flex;
  gap: 8px;
}

.empty-state {
  display: grid;
  place-items: center;
  min-height: 150px;
  color: var(--gray-700);
  text-align: center;
  padding: 22px;
  line-height: 1.45;
}

.status-line {
  min-height: 24px;
  color: var(--gray-700);
  font-size: 0.9rem;
  line-height: 1.4;
}

.status-line.is-error {
  color: var(--red-600);
  font-weight: 700;
}

.status-line.is-success {
  color: var(--green-600);
  font-weight: 700;
}

.mobile-nav {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 30;
  background: rgba(255, 255, 255, 0.96);
  border-top: 1px solid var(--gray-300);
  backdrop-filter: blur(14px);
}

.mobile-nav-inner {
  width: min(640px, 100%);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  padding: 6px 8px max(6px, env(safe-area-inset-bottom));
  gap: 4px;
}

.nav-button {
  min-height: 54px;
  border: 0;
  border-radius: var(--radius);
  background: transparent;
  color: var(--gray-700);
  display: grid;
  place-items: center;
  gap: 2px;
  font-size: 0.72rem;
  font-weight: 800;
}

.nav-button.is-active {
  background: var(--blue-100);
  color: var(--blue-700);
}

.desktop-rail {
  display: none;
}

.segmented {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
  padding: 4px;
  border: 1px solid var(--gray-300);
  border-radius: var(--radius);
  background: var(--gray-100);
}

.segment {
  min-height: 42px;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: var(--gray-700);
  font-weight: 850;
}

.segment.is-active {
  background: var(--white);
  color: var(--blue-700);
  box-shadow: 0 4px 12px rgba(20, 32, 51, 0.08);
}

.hidden {
  display: none !important;
}

@media (min-width: 680px) {
  .action-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .folder-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .app-layout {
    padding-bottom: 0;
  }

  .mobile-nav {
    display: none;
  }

  .desktop-shell {
    display: grid;
    grid-template-columns: 232px 1fr;
    width: min(1120px, 100%);
    margin: 0 auto;
    padding: 18px 16px 30px;
    gap: 18px;
  }

  .content {
    width: 100%;
    padding: 0;
  }

  .desktop-rail {
    display: block;
    position: sticky;
    top: 76px;
    align-self: start;
    background: var(--blue-700);
    border: 1px solid var(--blue-700);
    border-radius: var(--radius);
    padding: 8px;
    box-shadow: 0 8px 22px rgba(20, 32, 51, 0.06);
  }

  .rail-button {
    min-height: 48px;
    width: 100%;
    border: 0;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 0 10px;
    background: transparent;
    color: rgba(255, 255, 255, 0.84);
    font-weight: 850;
    text-align: left;
  }

  .rail-button.is-active {
    background: rgba(255, 255, 255, 0.16);
    color: var(--white);
  }

  .split-layout {
    grid-template-columns: minmax(260px, 340px) minmax(0, 1fr);
    align-items: start;
  }
}

@media (max-width: 520px) {
  .topbar-inner {
    padding: 8px 12px;
  }

  .topbar .brand-lockup {
    gap: 8px;
  }

  .topbar .brand-mark {
    width: 34px;
    height: 34px;
  }

  .role-chip {
    display: none;
  }

  .search-bar {
    min-height: 52px;
    padding: 0 8px;
  }

  .search-bar input {
    font-size: 0.95rem;
  }

  .search-bar .secondary-button {
    width: 48px;
    min-width: 48px;
    padding: 0;
    font-size: 0;
  }

  .search-bar .secondary-button::before {
    content: "";
    width: 18px;
    height: 18px;
    border: 2px solid currentColor;
    border-radius: 50%;
    transform: translate(-1px, -1px);
  }

  .search-bar .secondary-button::after {
    content: "";
    width: 8px;
    height: 2px;
    background: currentColor;
    transform: translate(-7px, 7px) rotate(45deg);
    border-radius: 2px;
  }

  .button-row {
    display: grid;
    grid-template-columns: 1fr;
  }

  .button-row > * {
    width: 100%;
    flex: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition: none !important;
  }
}