/* IdentityThread paper-room design kernel: tokens, shared surfaces, rails, forms, and utilities. */

:root {
  --paper: #f8f2e6;
  --paper-warm: #f4ead8;
  --paper-deep: #eee0ca;
  --paper-card: rgba(255, 252, 245, 0.74);
  --paper-card-strong: rgba(255, 252, 245, 0.9);
  --ink: #10213a;
  --ink-soft: #536073;
  --forest: #315f44;
  --forest-dark: #214d35;
  --amber: #b9771f;
  --thread: rgba(184, 119, 28, 0.58);
  --hairline: rgba(85, 74, 56, 0.2);
  --paper-shadow: 0 14px 34px rgba(44, 35, 22, 0.08);
  --paper-card-shadow: 0 10px 22px rgba(44, 35, 22, 0.06);
  --font-ui: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-display: Fraunces, Georgia, serif;
  color-scheme: light;
  font-family: var(--font-ui);
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background: #efe3cf;
}

body.identitythread-paper {
  min-height: 100vh;
  margin: 0;
  color: var(--ink);
  font-family: var(--font-ui);
  background:
    radial-gradient(circle at 16% 12%, rgba(255, 255, 255, 0.46), transparent 30%),
    linear-gradient(115deg, rgba(255, 255, 255, 0.3), transparent 36%),
    var(--paper-warm);
}

body.identitythread-paper::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.28;
  background-image:
    url("/assets/paper-fiber.png"),
    linear-gradient(rgba(85, 74, 56, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(85, 74, 56, 0.03) 1px, transparent 1px);
  background-size: 420px 420px, 27px 27px, 31px 31px;
  mix-blend-mode: multiply;
}

.identitythread-paper h1,
.identitythread-paper h2,
.identitythread-paper h3,
.identitythread-paper p {
  margin: 0;
}

.identitythread-paper button,
.identitythread-paper input,
.identitythread-paper textarea,
.identitythread-paper select {
  font: inherit;
}

.identitythread-paper button,
.identitythread-paper a.button-link {
  min-height: 38px;
  border: 1px solid rgba(49, 95, 68, 0.22);
  border-radius: 999px;
  padding: 9px 16px;
  color: var(--ink);
  background: rgba(255, 252, 245, 0.7);
  text-decoration: none;
  cursor: pointer;
  transition: border-color 0.16s ease, background 0.16s ease, transform 0.16s ease;
}

.identitythread-paper button:hover,
.identitythread-paper a.button-link:hover {
  border-color: rgba(49, 95, 68, 0.45);
  background: rgba(255, 252, 245, 0.95);
}

.identitythread-paper button:active,
.identitythread-paper a.button-link:active {
  transform: translateY(1px);
}

.identitythread-paper button:disabled {
  cursor: not-allowed;
  opacity: 0.52;
}

.identitythread-paper input,
.identitythread-paper select,
.identitythread-paper textarea {
  width: 100%;
  border: 1px solid rgba(85, 74, 56, 0.18);
  border-radius: 10px;
  padding: 10px 11px;
  color: var(--ink);
  background: rgba(255, 252, 245, 0.7);
}

.identitythread-paper input:focus,
.identitythread-paper select:focus,
.identitythread-paper textarea:focus,
.identitythread-paper button:focus-visible,
.identitythread-paper a.button-link:focus-visible {
  outline: 2px solid rgba(184, 119, 28, 0.45);
  outline-offset: 2px;
}

.identitythread-paper textarea {
  resize: vertical;
}

.identitythread-paper label {
  color: var(--ink-soft);
  font-size: 12px;
  font-weight: 700;
}

.identitythread-paper .primary {
  color: #fffaf0;
  background: linear-gradient(180deg, #3e7253, #214d35);
  border-color: rgba(22, 61, 41, 0.2);
  box-shadow: 0 10px 20px rgba(33, 77, 53, 0.14);
}

.identitythread-paper .primary:hover {
  color: #fffaf0;
  background: linear-gradient(180deg, #477c5c, #244f38);
}

.identitythread-paper .ghost {
  background: transparent;
}

.identitythread-paper .link {
  width: auto;
  min-height: auto;
  border: 0;
  padding: 0;
  color: var(--forest-dark);
  background: transparent;
  font: inherit;
  font-weight: 700;
}

.identitythread-paper .link:hover {
  background: transparent;
}

.paper-card {
  display: grid;
  gap: 12px;
  padding: 18px;
  border: 1px solid rgba(85, 74, 56, 0.16);
  border-radius: 12px;
  background:
    url("/assets/paper-fiber.png"),
    var(--paper-card);
  background-size: 280px 280px, auto;
  box-shadow: var(--paper-card-shadow);
}

.paper-card h2 {
  font-family: var(--font-display);
  font-size: 21px;
  font-weight: 600;
}

.paper-card p {
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.45;
}

.top-rail {
  position: sticky;
  top: 0;
  z-index: 10;
  min-height: 38px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  grid-template-areas: "brand account";
  align-items: center;
  gap: 16px;
  padding: 7px 26px;
  border-bottom: 1px solid rgba(85, 74, 56, 0.16);
  background: rgba(248, 242, 230, 0.9);
  backdrop-filter: blur(10px);
}

.brand-lockup,
.rail-cluster {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.brand-lockup {
  grid-area: brand;
  overflow: hidden;
}

.rail-cluster {
  grid-area: account;
  justify-content: flex-end;
  overflow: hidden;
  color: var(--ink-soft);
  font-size: 13px;
  white-space: nowrap;
}

.brand-mark {
  flex: 0 0 auto;
  width: 23px;
  height: 23px;
  display: grid;
  place-items: center;
  border-radius: 7px;
  color: var(--forest-dark);
  background: #eef3df;
  font-family: var(--font-ui);
  font-size: 14px;
  font-weight: 800;
  line-height: 1;
}

.brand-name,
.session-title {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.brand-name {
  flex: 0 0 auto;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
}

.session-title {
  font-size: 13px;
  max-width: 190px;
}

.rail-separator {
  flex: 0 0 auto;
  width: 1px;
  height: 20px;
  background: rgba(85, 74, 56, 0.2);
}

.icon-button {
  width: 32px;
  height: 32px;
  min-height: 32px;
  padding: 0;
  border-color: rgba(85, 74, 56, 0.18);
  color: var(--ink-soft);
  background: rgba(255, 252, 245, 0.36);
}

.icon-button:hover {
  color: var(--ink);
  background: rgba(255, 252, 245, 0.68);
}

.index-icon svg,
.icon-button svg,
.eye-chip svg,
.library-chip svg,
.mic-button svg,
.send-button svg,
.attach-button svg,
.draft-lock svg {
  width: 17px;
  height: 17px;
  stroke: currentColor;
  stroke-width: 1.8;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.voice-ready {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 13px;
  white-space: nowrap;
  flex: 0 0 auto;
}

.voice-ready::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: var(--forest);
}

.profile-chip {
  flex: 0 0 auto;
  width: 32px;
  height: 32px;
  border-radius: 999px;
  display: grid;
  place-items: center;
  color: #fffaf0;
  background: var(--forest);
  font-family: var(--font-display);
  font-size: 14px;
}

.theme-toggle {
  position: static;
  width: 31px;
  height: 31px;
  min-height: 31px;
  padding: 0;
  border-radius: 999px;
  box-shadow: none;
  background: transparent;
}

.theme-toggle,
#logoutBtn {
  display: none;
}

.row {
  display: grid;
  gap: 7px;
}

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

.inline-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
}

.status,
.status-line,
.privacy-line {
  min-height: 18px;
  color: var(--ink-soft);
  font-size: 12px;
}

.status {
  font-size: 13px;
}

.privacy-line {
  text-align: center;
}

.muted {
  color: var(--ink-soft);
  line-height: 1.45;
}

.hidden {
  display: none !important;
}

.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;
}

.identitythread-paper a {
  color: var(--forest-dark);
  text-decoration: none;
  font-weight: 700;
}

.muted-link {
  color: var(--ink-soft);
}

@media (max-width: 1280px) {
  .top-rail {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 12px;
    padding: 8px 20px;
  }

  .brand-name {
    font-size: 17px;
  }

  .session-title {
    max-width: clamp(120px, 30vw, 230px);
  }
}

@media (max-width: 720px) {
  .top-rail {
    gap: 10px;
    padding: 9px 14px;
    position: static;
  }

  .brand-lockup {
    gap: 10px;
  }

  .brand-name {
    font-size: 16px;
  }

  .session-title {
    max-width: min(46vw, 190px);
  }

  .split {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 520px) {
  .brand-name {
    font-size: 15px;
  }

  .brand-lockup .rail-separator,
  .session-title {
    display: none;
  }

  .voice-ready {
    font-size: 12px;
  }
}