/* Nocturne — design-system tokens and component classes. This file is the source of truth for the system's look; retune it here and see readme.md. */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

:root {
  --color-bg: #161826;
  --color-surface: #232532;
  --color-text: #e9e9ed;
  --color-accent: #9184d9;
  /* review round 7 (Barron): the accent moves to
     the product's blurple — OKLCH hue 289.2, the hue of the app's own Pro
     accent (#9a8fe0, --om-accent-pro) — at the same lightness the steel
     accent held (L 0.660, so the documented ratios survive) and chroma
     in the product blurple's own range (its token sits at C 0.118; the
     accent takes 0.125, from the old steel's 0.030):
     the accent now reads as an accent rather than another neutral. */
  --color-accent-2: #a7a1db;
  /* the machine-derived stand-in follows: same
     hue, same L 0.734, chroma at the same 2:3 proportion it held */
  --color-divider: color-mix(in srgb, #e9e9ed 16%, transparent);

  /* Tonal ramps — generated in OKLCH on one shared lightness scale, so the
     same step of any role matches the others in visual value. */
  --color-neutral-100: #f3f5fe;
  --color-neutral-200: #e4e7f5;
  --color-neutral-300: #cfd3e5;
  --color-neutral-400: #b2b6ca;
  --color-neutral-500: #9397ab;
  --color-neutral-600: #75798c;
  --color-neutral-700: #595d6c;
  --color-neutral-800: #3f424d;
  --color-neutral-900: #292b31;

  --color-accent-100: #f5f4ff;
  --color-accent-200: #e7e5fe;
  --color-accent-300: #d2cefd;
  --color-accent-400: #b5abfc;
  --color-accent-500: #968ae0;
  --color-accent-600: #796cbf;
  --color-accent-700: #5d5294;
  --color-accent-800: #423a6a;
  --color-accent-900: #2b2741;

  --color-accent-2-100: #f5f4ff;
  --color-accent-2-200: #e7e5fe;
  --color-accent-2-300: #d2cefd;
  --color-accent-2-400: #b5afe8;
  --color-accent-2-500: #9690c9;
  --color-accent-2-600: #7972a9;
  --color-accent-2-700: #5c5783;
  --color-accent-2-800: #423e5d;
  --color-accent-2-900: #2b293a;

  /* Deck section-divider ground — review round 3: saturation as presence.
     Dividers take a saturated deep indigo (hue 277, the neutral ramp's own
     family; C 0.094 — written when the accent held C 0.030, before the
     round-7 blurple raised it past the ground's) with a lighter bloom and
     a ghost tint of the same hue, while the slide grounds stay
     desaturated. Deck-scale fills only — not interface colors. */
  --color-section: #262a60;
  --color-section-glow: #353b80;
  --color-section-ghost: #4c5397;

  --font-heading: "Inter", system-ui, sans-serif;
  --font-heading-weight: 500;
  --font-body: "Inter", system-ui, sans-serif;

  --space-1: 2.8px;
  --space-2: 5.6px;
  --space-3: 8.4px;
  --space-4: 11.2px;
  --space-6: 16.8px;
  --space-8: 22.4px;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 14px;

  /* Elevation — derived from the ground: soft ink-tinted shadows on a
     light theme, a hairline edge + ambient darkness on a dark one. */
  --shadow-sm: 0 0 0 1px #3f424d;
  --shadow-md: 0 0 0 1px #595d6c, 0 6px 18px rgba(0, 0, 0, 0.55);
  --shadow-lg: 0 0 0 1px #9397ab, 0 16px 40px rgba(0, 0, 0, 0.65);
}

body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
}

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: var(--font-heading-weight);
}

.lighten {
  mix-blend-mode: lighten;
  background-color: transparent
}

/* ══════════════════════════════════════════════════════════════════════════
   Components — built with the tokens above. Plain CSS
   on plain HTML: no JavaScript, no build step. Each class is documented in
   readme.md and demonstrated in foundations/ and components/.
   ══════════════════════════════════════════════════════════════════════ */

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

body {
  margin: 0;
  font-size: 15px;
  line-height: 1.55;
  font-weight: 400;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: var(--font-heading-weight);
  line-height: 1.12;
  letter-spacing: -0.015em;
  margin: 0 0 var(--space-2);
}

h1 {
  font-size: 42px;
}

h2 {
  font-size: 32px;
}

h3 {
  font-size: 25px;
}

h4 {
  font-size: 20px;
}

h5 {
  font-size: 16px;
}

h6 {
  font-size: 13px;
}

h6 {
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

p {
  margin: 0 0 var(--space-3);
}

a {
  color: var(--color-accent);
  text-underline-offset: 3px;
}

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

figure {
  margin: 0;
}

figcaption {
  font-size: 11px;
  margin-top: var(--space-1);
  color: color-mix(in srgb, var(--color-text) 55%, transparent);
}

.text-muted {
  color: color-mix(in srgb, var(--color-text) 55%, transparent);
}

:focus {
  outline: none;
}

:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

::selection {
  background: color-mix(in srgb, var(--color-accent) 30%, transparent);
}

/* — rules — */
/* Rules fade to transparent at both ends instead of stopping cleanly — a
   Nocturne signature. The ramp is 48px an end (one deck baseline unit),
   painted from the same divider token. Freestanding rules fade; box
   outlines, in-control separators, and short accent marks stay solid. */
.hr {
  height: 1px;
  border: 0;
  margin: var(--space-4) 0;
  background: linear-gradient(to right,
      transparent, var(--color-divider) 48px,
      var(--color-divider) calc(100% - 48px), transparent);
}

/* — buttons — */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  cursor: pointer;
  text-decoration: none;
  font-family: var(--font-heading);
  font-weight: var(--font-heading-weight);
  font-size: 14px;
  line-height: 1.2;
  color: var(--color-text);
  /* matches the .input's 14px —
     the pair sits side by side in sign-up rows */
  background: transparent;
  border: 1px solid transparent;
  padding: var(--space-2) calc(var(--space-3) * 1.2);
  border-radius: var(--radius-md);
}

.btn svg {
  display: block;
}

.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.btn-primary {
  color: var(--color-accent);
  border-color: var(--color-accent);
}

.btn-primary:hover {
  background: color-mix(in srgb, var(--color-accent) 12%, transparent);
}

.btn-primary:active {
  background: color-mix(in srgb, var(--color-accent) 22%, transparent);
}

.btn-secondary {
  border-color: var(--color-divider);
}

.btn-secondary:hover {
  background: color-mix(in srgb, var(--color-text) 7%, transparent);
}

.btn-secondary:active {
  background: color-mix(in srgb, var(--color-text) 14%, transparent);
}

.btn-ghost {
  color: var(--color-accent);
  padding-inline: var(--space-1);
}

.btn-ghost:hover {
  background: color-mix(in srgb, var(--color-accent) 10%, transparent);
}

.btn-ghost:active {
  background: color-mix(in srgb, var(--color-accent) 18%, transparent);
}

.btn-icon {
  width: 36px;
  height: 36px;
  padding: 0;
}

.btn-block {
  width: 100%;
  margin-top: var(--space-2);
}

/* — forms — */
.field>label {
  display: block;
  font-size: 12px;
  margin-bottom: 5px;
  color: color-mix(in srgb, var(--color-text) 70%, transparent);
}

.input {
  width: 100%;
  min-height: 36px;
  padding: 6px 10px;
  font: inherit;
  font-size: 14px;
  color: var(--color-text);
  caret-color: var(--color-accent);
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-md);
}

.input:hover {
  border-color: color-mix(in srgb, var(--color-text) 45%, transparent);
}

.input:focus-visible {
  border-color: var(--color-accent);
  outline-offset: 0;
}

textarea.input {
  min-height: 90px;
  resize: vertical;
}

.radio {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  font-size: 14px;
}

.radio input, .seg-opt input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
  pointer-events: none;
}

.radio .dot {
  width: 16px;
  height: 16px;
  flex: none;
  border-radius: 50%;
  border: 1.5px solid var(--color-divider);
}

.radio:hover .dot {
  border-color: var(--color-accent);
}

.radio input:checked+.dot {
  border-color: var(--color-accent);
  background: var(--color-accent);
  box-shadow: inset 0 0 0 4px var(--color-bg);
}

.radio input:focus-visible+.dot {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.seg {
  display: inline-flex;
  overflow: hidden;
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-md);
}

.seg-opt {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 12px;
  font-size: 13px;
  cursor: pointer;
}

.seg-opt+.seg-opt {
  border-left: 1px solid var(--color-divider);
}

.seg-opt:has(input:checked) {
  color: var(--color-accent);
  box-shadow: inset 0 0 0 1px var(--color-accent);
}

.seg-opt:not(:has(input:checked)):hover {
  background: color-mix(in srgb, var(--color-text) 7%, transparent);
}

.seg-opt:has(input:focus-visible) {
  outline: 2px solid var(--color-accent);
  outline-offset: -2px;
}

/* — cards — */
.card {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-3);
  border-radius: var(--radius-md);
  background: var(--color-surface);
}

.card-kicker {
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.card-title {
  font-family: var(--font-heading);
  font-weight: var(--font-heading-weight);
  font-size: 17px;
  line-height: 1.2;
}

.card-body {
  margin: 0;
  font-size: 13px;
  opacity: 0.8;
  flex: 1;
}

.card-meta {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  color: color-mix(in srgb, var(--color-text) 50%, transparent);
}

.elev-sm {
  box-shadow: var(--shadow-sm);
}

.elev-md {
  box-shadow: var(--shadow-md);
}

.elev-lg {
  box-shadow: var(--shadow-lg);
}

/* — tags — */
.tag {
  display: inline-flex;
  align-items: center;
  font-size: 11px;
  letter-spacing: 0.02em;
  padding: 3px 10px;
  border-radius: calc(var(--radius-md) * 0.75);
}

.tag-accent {
  background: var(--color-accent-800);
  color: var(--color-accent-100);
}

.tag-accent-2 {
  background: var(--color-accent-2-800);
  color: var(--color-accent-2-100);
}

.tag-neutral {
  background: var(--color-neutral-800);
  color: var(--color-neutral-100);
}

.tag-outline {
  border: 1px solid var(--color-accent);
  color: var(--color-accent);
}

/* — navigation — */
.nav {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-3) var(--space-4);
  border-bottom: none;
}

.nav-brand {
  font-family: var(--font-heading);
  font-weight: var(--font-heading-weight);
  font-size: 18px;
  margin-right: auto;
}

.nav a {
  color: inherit;
  text-decoration: none;
  font-size: 14px;
}

.nav a:hover, .nav a[aria-current='page'] {
  color: var(--color-accent);
}

/* — tables — */
.table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.table th {
  text-align: left;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: color-mix(in srgb, var(--color-text) 60%, transparent);
  padding: var(--space-2);
  border-bottom: 1px solid transparent;
  /* keeps layout; the row paints the fading rule */
}

.table td {
  padding: var(--space-2);
  border-bottom: 1px solid transparent;
}

/* Row rules as row-level strips so the end-fade spans the row, not each cell. */
.table thead tr {
  background: linear-gradient(to right,
      transparent, var(--color-divider) 48px,
      var(--color-divider) calc(100% - 48px), transparent) no-repeat bottom / 100% 1px;
}

.table tbody tr {
  background: linear-gradient(to right,
      transparent, color-mix(in srgb, var(--color-text) 8%, transparent) 48px,
      color-mix(in srgb, var(--color-text) 8%, transparent) calc(100% - 48px), transparent) no-repeat bottom / 100% 1px;
}

.table tbody tr:hover {
  /* the hover tint layers over the row rule, which keeps painting */
  background:
    linear-gradient(color-mix(in srgb, var(--color-text) 4%, transparent),
      color-mix(in srgb, var(--color-text) 4%, transparent)) no-repeat 0 0 / 100% 100%,
    linear-gradient(to right,
      transparent, color-mix(in srgb, var(--color-text) 8%, transparent) 48px,
      color-mix(in srgb, var(--color-text) 8%, transparent) calc(100% - 48px), transparent) no-repeat bottom / 100% 1px;
}

/* — dialog — */
.dialog-backdrop {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  padding: var(--space-4);
  background: color-mix(in srgb, var(--color-neutral-900) 50%, transparent);
}

.dialog {
  width: min(440px, 100%);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding: var(--space-4);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  box-shadow: var(--shadow-lg);
}

.dialog-title {
  font-family: var(--font-heading);
  font-weight: var(--font-heading-weight);
  font-size: 20px;
}

.dialog-body {
  font-size: 14px;
  opacity: 0.85;
}

.dialog-actions {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-2);
  margin-top: var(--space-2);
}

@media screen and (min-width:280px) and (max-width:850px) {
  .am-util-text {
    display: none !important;
  }

}