:root {
  --color-bg: #f7f5f2;
  --color-bg-elevated: #ffffff;
  --color-ink: #1a1a1a;
  --color-ink-muted: #5c5a56;
  --color-stone: #8a867f;
  --color-line: #e4e0d8;
  --color-accent: #0a8f9e;
  --color-accent-hover: #087a87;
  --color-accent-wash: rgba(10, 143, 158, 0.08);
  --color-warn: #b3552f;
  --color-warn-wash: rgba(179, 85, 47, 0.08);
  --font-display: "Fraunces", "Times New Roman", serif;
  --font-body: "DM Sans", "Helvetica Neue", sans-serif;
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.75rem;
  --space-lg: 3.5rem;
  --space-xl: 6rem;
  --nav-height: 4.25rem;
  --content: 64rem;
  --radius: 0.25rem;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-ink);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: var(--color-accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
  transition: color 0.2s var(--ease);
}

a:hover {
  color: var(--color-accent-hover);
}

h1,
h2,
h3,
.brand-mark {
  font-family: var(--font-display);
  font-weight: 500;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0 0 0.5rem;
}

h1 {
  font-size: clamp(1.75rem, 3vw, 2.25rem);
}

h2 {
  font-size: 1.35rem;
}

h3 {
  font-size: 1.05rem;
  margin-bottom: 0.35rem;
}

p {
  margin: 0 0 1rem;
}

p:last-child {
  margin-bottom: 0;
}

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

.container {
  width: min(100% - 2.5rem, var(--content));
  margin-inline: auto;
}

/* -- top nav -------------------------------------------------------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  background: rgba(247, 245, 242, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-line);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
}

.logo-link {
  display: inline-flex;
  align-items: baseline;
  gap: 0.4rem;
  color: var(--color-ink);
  text-decoration: none;
}

.logo-link:hover {
  color: var(--color-ink);
}

.brand-mark {
  font-size: 1.2rem;
  margin: 0;
  letter-spacing: -0.02em;
}

.brand-dot {
  color: var(--color-accent);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.session-tag {
  font-size: 0.85rem;
  color: var(--color-ink-muted);
}

.role-badge {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius);
  background: var(--color-accent-wash);
  color: var(--color-accent-hover);
}

/* -- buttons ---------------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius);
  border: 1px solid transparent;
  font-family: var(--font-body);
  font-size: 0.92rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.2s var(--ease), color 0.2s var(--ease),
    border-color 0.2s var(--ease), transform 0.2s var(--ease), opacity 0.2s var(--ease);
}

.btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.btn:not(:disabled):hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--color-accent);
  color: #fff;
}

.btn-primary:not(:disabled):hover {
  background: var(--color-accent-hover);
  color: #fff;
}

.btn-secondary {
  background: transparent;
  color: var(--color-ink);
  border-color: var(--color-line);
}

.btn-secondary:not(:disabled):hover {
  border-color: var(--color-ink);
}

.btn-quiet {
  background: transparent;
  color: var(--color-ink-muted);
  border-color: transparent;
  padding: 0.5rem 0.75rem;
  font-size: 0.85rem;
}

.btn-quiet:not(:disabled):hover {
  color: var(--color-ink);
}

.btn-danger {
  background: transparent;
  color: var(--color-warn);
  border-color: var(--color-line);
}

.btn-danger:not(:disabled):hover {
  border-color: var(--color-warn);
}

.btn-sm {
  padding: 0.45rem 0.85rem;
  font-size: 0.85rem;
}

.btn-block {
  width: 100%;
}

/* -- forms -------------------------------------------------------------- */

label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-ink);
  margin-bottom: 0.4rem;
}

.field {
  margin-bottom: var(--space-sm);
}

.field-hint {
  font-size: 0.8rem;
  color: var(--color-stone);
  margin-top: 0.35rem;
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="search"],
select,
textarea {
  width: 100%;
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--color-ink);
  background: #fff;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: 0.7rem 0.85rem;
}

input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 1px;
}

select {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%235c5a56' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.85rem center;
  padding-right: 2.25rem;
  cursor: pointer;
}

.form-row {
  display: flex;
  gap: var(--space-sm);
}

.form-row > * {
  flex: 1;
}

/* -- auth pages ---------------------------------------------------------- */

.auth-shell {
  min-height: calc(100vh - var(--nav-height));
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-lg) 1.25rem;
}

.auth-card {
  width: 100%;
  max-width: 24rem;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: var(--space-md);
}

.auth-card h1 {
  font-size: 1.55rem;
}

.auth-card .lede {
  color: var(--color-ink-muted);
  font-size: 0.95rem;
  margin-bottom: var(--space-md);
}

.auth-switch {
  margin-top: var(--space-md);
  padding-top: var(--space-sm);
  border-top: 1px solid var(--color-line);
  font-size: 0.9rem;
  color: var(--color-ink-muted);
  text-align: center;
}

.auth-links {
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  margin-top: -0.5rem;
  margin-bottom: var(--space-sm);
}

/* -- alerts ---------------------------------------------------------------- */

.alert {
  display: none;
  font-size: 0.88rem;
  padding: 0.75rem 0.9rem;
  border-radius: var(--radius);
  margin-bottom: var(--space-sm);
  border: 1px solid transparent;
}

.alert.is-visible {
  display: block;
}

.alert-error {
  background: var(--color-warn-wash);
  color: var(--color-warn);
  border-color: rgba(179, 85, 47, 0.2);
}

.alert-success {
  background: var(--color-accent-wash);
  color: var(--color-accent-hover);
  border-color: rgba(10, 143, 158, 0.2);
}

/* -- app shell --------------------------------------------------------- */

.app-main {
  padding: var(--space-md) 0 var(--space-xl);
}

.app-tabs {
  display: flex;
  gap: 0.5rem;
  border-bottom: 1px solid var(--color-line);
  margin-bottom: var(--space-md);
  flex-wrap: wrap;
}

.app-tabs button {
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  padding: 0.85rem 0.25rem;
  margin-right: 1.5rem;
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--color-ink-muted);
  cursor: pointer;
}

.app-tabs button:hover {
  color: var(--color-ink);
}

.app-tabs button.is-active {
  color: var(--color-ink);
  border-bottom-color: var(--color-accent);
}

.tab-panel {
  display: none;
}

.tab-panel.is-active {
  display: block;
}

.panel-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
  flex-wrap: wrap;
}

.panel-head p {
  color: var(--color-ink-muted);
  max-width: 34rem;
}

/* -- cards / lists ------------------------------------------------------- */

.card {
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: var(--space-md);
  margin-bottom: var(--space-sm);
}

.card-tight {
  padding: var(--space-sm) var(--space-md);
}

.list {
  border-top: 1px solid var(--color-line);
}

.list-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--color-line);
  flex-wrap: wrap;
}

.list-row-main {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  min-width: 12rem;
}

.list-row-title {
  font-weight: 500;
  font-size: 0.98rem;
}

.list-row-meta {
  font-size: 0.82rem;
  color: var(--color-stone);
}

.list-row-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.empty-row {
  padding: var(--space-md) 0;
  color: var(--color-stone);
  font-size: 0.92rem;
  text-align: center;
}

/* -- pills / badges -------------------------------------------------------- */

.pill {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.76rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  padding: 0.22rem 0.6rem;
  border-radius: 999px;
  background: var(--color-line);
  color: var(--color-ink-muted);
}

.pill-dot {
  width: 0.4rem;
  height: 0.4rem;
  border-radius: 50%;
  background: currentColor;
}

.pill-claimed {
  background: var(--color-accent-wash);
  color: var(--color-accent-hover);
}

.pill-unclaimed {
  background: var(--color-line);
  color: var(--color-stone);
}

.pill-released,
.pill-decommissioned {
  background: var(--color-warn-wash);
  color: var(--color-warn);
}

/* -- token / detail panels ----------------------------------------------- */

.detail-panel {
  display: none;
  margin-top: var(--space-sm);
  padding-top: var(--space-sm);
  border-top: 1px dashed var(--color-line);
}

.detail-panel.is-open {
  display: block;
}

/* -- subscribe prompt (unsubscribed device row) --------------------------- */

.subscribe-prompt {
  margin-top: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  border: 1px solid var(--color-line);
  border-left: 3px solid var(--color-accent);
  border-radius: var(--radius);
  background: var(--color-accent-wash);
  color: var(--color-ink-muted);
  font-size: 0.92rem;
}

.subscribe-prompt .btn {
  margin-top: 0.6rem;
}

.token-value {
  display: block;
  font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  font-size: 0.85rem;
  background: var(--color-bg);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: 0.6rem 0.75rem;
  word-break: break-all;
  margin-top: 0.5rem;
}

.section-label {
  display: block;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-stone);
  margin-bottom: 0.6rem;
}

.skeleton {
  color: var(--color-stone);
  font-size: 0.9rem;
  padding: var(--space-sm) 0;
}

@media (max-width: 720px) {
  .list-row {
    align-items: flex-start;
  }

  .header-actions .session-tag {
    display: none;
  }
}