/* Card Grader — "collector-grade" dark theme.
   Card-type agnostic (Pokemon, sports, TCG).

   Committed dark, not a dark *mode*. The light palette was removed rather
   than kept as a fallback: this is one deliberate look, and a half-tended
   second palette is how a design drifts out of sync with itself. Phones in
   light mode get this same design, which is the intent.

   Colour discipline (carried over from the light theme, still true):
   - Grade severities ride a lightness ladder (none -> minor -> moderate ->
     major), so the table still reads as escalating severity in greyscale.
   - Red is reserved for "you should distrust this number" (unmeasurable
     edges, a low grade) — never decorative.
   - Foil/holo treatment is reserved for a 10. Every card shimmering would
     say nothing. */

:root {
  color-scheme: dark;

  /* Ground is nearly black with a blue cast — a neutral grey ground makes
     the card thumbnails look washed, since most slabs and holos are cool. */
  --ground:      #06090f;
  --surface-1:   #0e1522;
  --surface-2:   #141d2e;   /* raised: modal, slab body, hover */
  --ink:         #eef3fb;
  --ink-2:       #aab8cf;
  --muted:       #7e8da6;
  --hairline:    #1c2740;
  --rule:        #2a3852;

  --accent:      #4d9bff;
  --accent-2:    #3ddcc0;
  --accent-soft: rgba(77, 155, 255, .14);

  --good:        #23c55e;
  --good-text:   #4ade80;
  --warning:     #f5a33c;
  --critical:    #f2555a;

  --ring:        rgba(255, 255, 255, .12);
  --shadow-sm:   0 1px 2px rgba(0, 0, 0, .5);
  --shadow:      0 2px 6px rgba(0, 0, 0, .5), 0 16px 40px rgba(0, 0, 0, .55);
  --shadow-lg:   0 4px 12px rgba(0, 0, 0, .55), 0 28px 70px rgba(0, 0, 0, .65);

  --radius:      14px;
  --radius-lg:   18px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  color: var(--ink);
  font: 16px/1.55 "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;

  /* Two broad, very low-opacity glows instead of the old dot grid. A tiled
     pattern reads as "utility dashboard"; soft light on a dark ground reads
     as depth. Fixed so it doesn't slide around under the content. */
  background-color: var(--ground);
  background-image:
    radial-gradient(900px 600px at 12% -8%, rgba(77, 155, 255, .10), transparent 60%),
    radial-gradient(760px 520px at 92% 4%, rgba(61, 220, 192, .07), transparent 62%);
  background-attachment: fixed;
  background-repeat: no-repeat;
  min-height: 100vh;
}

/* ---------------------------------------------------------------- type */

h1, h2, h3 { margin: 0; font-weight: 650; }
h1 { font-size: 17px; letter-spacing: -.01em; }
h2 { font-size: 21px; letter-spacing: -.02em; }
h3 {
  font-size: 12px; text-transform: uppercase; letter-spacing: .08em;
  color: var(--muted); font-weight: 700;
}

main {
  max-width: 940px;
  margin: 0 auto;
  padding: 30px 24px 96px;
  display: flex;
  flex-direction: column;
  gap: 22px;
}

/* ------------------------------------------------------------- topbar */

.topbar {
  position: sticky; top: 0; z-index: 20;
  background: rgba(8, 12, 20, .82);
  -webkit-backdrop-filter: blur(14px) saturate(1.4);
  backdrop-filter: blur(14px) saturate(1.4);
  border-bottom: 1px solid var(--hairline);
}
/* The bar spans the viewport, but its CONTENTS line up with the page
   column — the logo sitting hard against a 3440px screen edge while the
   panels floated in a narrow centre column was the single thing making
   this read as unfinished rather than designed. */
.topbar-inner {
  max-width: 940px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; flex-wrap: wrap;
  padding: 13px 24px;
}
/* Holo-foil edge: the rainbow sweep you get tilting a refractor. Purely
   decorative and it encodes nothing, so it's free to be vivid here where no
   number lives — but dialled back from the original full-strength stripe,
   which was the loudest thing on an otherwise restrained page. */
.topbar::after {
  content: ''; position: absolute; left: 0; right: 0; bottom: -1px; height: 1.5px;
  background: linear-gradient(90deg,
    #ff5f8f, #ffb347, #ffe66d, #3ddcc0, #4d9bff, #a97bff, #ff5f8f);
  opacity: .5;
}
.topbar h1 {
  color: #fff; font-size: 16px; font-weight: 600; letter-spacing: -.005em;
}

.topbar .btn {
  background: var(--accent-2); color: #04231d;
  border-color: transparent; font-weight: 650;
}
.topbar .btn:hover { filter: brightness(1.08); }
.topbar .btn-quiet {
  background: rgba(255, 255, 255, .07); color: var(--ink);
  border-color: rgba(255, 255, 255, .16); font-weight: 550;
}
.topbar .btn-quiet:hover { background: rgba(255, 255, 255, .13); filter: none; }

.brand { display: flex; align-items: center; gap: 11px; }

/* Brand mark: a graded slab — case, label, and the card sealed inside.
   Drawn as flat two-tone geometry rather than the gradient-blob-with-a-
   checkmark it replaced: that read as a generic app badge and said nothing
   about grading. Thin strokes and no glow keep it legible at 22px. */
.brand-mark { flex: none; width: 21px; height: 26px; display: block; }
.brand-mark .mark-case { stroke: var(--accent); }
.brand-mark .mark-label { fill: var(--accent-2); }
.brand-mark .mark-card { fill: var(--accent); opacity: .34; }

.topbar-actions { display: flex; gap: 9px; flex-wrap: wrap; }

/* ------------------------------------------------------------ controls */

/* Flat accent fill with a plain shadow. The previous gradient-plus-coloured-
   glow made every button feel like the page's main event, which flattened
   the hierarchy — the grade result should be the loudest thing here, not
   the controls. */
.btn {
  font: inherit; font-weight: 600; font-size: 14.5px;
  padding: 9px 17px; border-radius: 9px; cursor: pointer;
  background: var(--accent);
  color: #04121f;
  border: 1px solid transparent;
  text-decoration: none; display: inline-block; line-height: 1.4;
  white-space: nowrap;
  box-shadow: 0 1px 2px rgba(0, 0, 0, .35);
  transition: filter .13s ease, transform .13s ease, background .13s ease;
}
.btn:hover { filter: brightness(1.08); }
.btn:active { transform: translateY(1px); }
.btn[disabled] { opacity: .45; cursor: default; filter: none; box-shadow: none; }
.btn:focus-visible, .close:focus-visible {
  outline: 2px solid var(--accent-2); outline-offset: 2px;
}

.btn-quiet {
  background: var(--surface-2); color: var(--ink);
  border-color: var(--rule); box-shadow: var(--shadow-sm);
}
.btn-quiet:hover { background: #1a2439; filter: none; }

.btn-danger {
  background: transparent; color: var(--critical);
  border-color: color-mix(in srgb, var(--critical) 55%, transparent);
  box-shadow: none;
}
.btn-danger:hover { background: var(--critical); color: #fff; filter: none; }

.btn-sm { padding: 5px 12px; font-size: 13px; }

.input, select, textarea {
  font: inherit; font-size: 14.5px;
  padding: 9px 12px;
  border: 1px solid var(--rule);
  border-radius: 10px;
  background: #0a1120;
  color: var(--ink);
  width: 100%;
  transition: border-color .13s ease, box-shadow .13s ease;
}
.input::placeholder, textarea::placeholder { color: var(--muted); }
.input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
textarea { resize: vertical; min-height: 64px; }

/* --------------------------------------------------------------- tiles */

.tile-value { font-size: 27px; font-weight: 750; letter-spacing: -.02em; }
.tile-sub { font-size: 12.5px; color: var(--ink-2); margin-top: 4px; }
.pos { color: var(--good-text); }
.neg { color: var(--critical); }

/* -------------------------------------------------------------- panels */

.panel {
  position: relative;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, .035), transparent 120px),
    var(--surface-1);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-lg);
  padding: 22px 24px 24px;
  box-shadow: var(--shadow);
}

/* A rule under the heading gives each panel a real header band instead of
   a title floating above loose content — the cheapest structural cue there
   is, and what most separates "designed" from "stacked divs". Suppressed
   inside modals, which set their own tighter header treatment below. */
.panel-head {
  display: flex; align-items: baseline; justify-content: space-between;
  gap: 12px; flex-wrap: wrap;
  padding-bottom: 13px; margin-bottom: 4px;
  border-bottom: 1px solid var(--hairline);
}
.hint { font-size: 13px; color: var(--muted); font-variant-numeric: tabular-nums; }
.search-status {
  margin-top: 14px; font-size: 13.5px; color: var(--ink-2);
  padding: 11px 13px; border-radius: 10px;
  background: var(--surface-2); border: 1px solid var(--hairline);
}

/* --------------------------------------------------------------- table */

.table-scroll { overflow-x: auto; margin: 0 -6px; padding: 0 6px; }
.grid { width: 100%; border-collapse: collapse; font-size: 14.5px; }
.grid th {
  text-align: left; font-size: 11px; font-weight: 700;
  text-transform: uppercase; letter-spacing: .07em; color: var(--muted);
  padding: 10px 12px; border-bottom: 1px solid var(--rule); white-space: nowrap;
}
.grid td {
  padding: 13px 12px; border-bottom: 1px solid var(--hairline);
  vertical-align: middle;
}
.grid tbody tr { cursor: pointer; transition: background .12s ease; }
.grid tbody tr:hover { background: var(--surface-2); }
.grid tbody tr:last-child td { border-bottom: none; }
.num { text-align: right; font-variant-numeric: tabular-nums; }

.cardcell { display: flex; align-items: center; gap: 13px; }
.cardcell img, .cardcell .thumb-blank {
  width: 46px; height: 64px; object-fit: cover;
  border-radius: 6px; background: var(--surface-2); flex: none;
  box-shadow: 0 2px 8px rgba(0, 0, 0, .55), inset 0 0 0 1px rgba(255, 255, 255, .07);
}
.thumb-blank {
  display: inline-block;
  border: 1px dashed var(--rule);
  background:
    repeating-linear-gradient(135deg, transparent 0 5px, var(--hairline) 5px 6px),
    var(--surface-2);
}
.cardcell-name { font-weight: 600; line-height: 1.3; }
.cardcell-meta { font-size: 12.5px; color: var(--muted); }
.dash { color: var(--muted); }

/* Table refinements the density audit turned up: dates were wrapping onto
   two lines, action buttons were stacking vertically in a cramped cell, and
   confidence read as one more grey word. */
.cell-when { white-space: nowrap; font-variant-numeric: tabular-nums; }
.cell-conf {
  font-size: 11px; font-weight: 700; letter-spacing: .08em;
  text-transform: uppercase;
}
.cell-conf.conf-high { color: var(--good-text); }
.cell-conf.conf-medium { color: var(--warning); }
.cell-conf.conf-low { color: var(--muted); }
.row-actions {
  display: flex; gap: 7px; justify-content: flex-end;
  white-space: nowrap;
}

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

.pill {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 12px; font-weight: 650;
  padding: 4.5px 11px; border-radius: 99px;
  border: 1px solid var(--rule); color: var(--ink-2);
  white-space: nowrap;
}
.pill-grade    { border-color: color-mix(in srgb, var(--good) 55%, transparent);
                 color: var(--good-text);
                 background: color-mix(in srgb, var(--good) 15%, transparent); }
.pill-marginal { border-color: color-mix(in srgb, var(--warning) 55%, transparent);
                 color: var(--warning);
                 background: color-mix(in srgb, var(--warning) 15%, transparent); }
.pill-raw      { border-color: var(--rule); color: var(--muted); }
.pill-critical { border-color: color-mix(in srgb, var(--critical) 55%, transparent);
                 color: var(--critical);
                 background: color-mix(in srgb, var(--critical) 15%, transparent); }

/* Empty state. The old version was a one-line shrug; this gives the panel
   something to hold and says what will show up here. */
.empty {
  text-align: center; color: var(--muted); font-size: 14px;
  padding: 40px 20px 34px;
}
.empty::before {
  content: ''; display: block; width: 42px; height: 58px; margin: 0 auto 14px;
  border-radius: 6px; border: 1.5px dashed var(--rule);
  background:
    repeating-linear-gradient(135deg, transparent 0 6px, var(--hairline) 6px 7px),
    var(--surface-2);
  opacity: .8;
}

/* -------------------------------------------------------------- modal */

.scrim {
  position: fixed; inset: 0; z-index: 30;
  background: rgba(3, 5, 10, .68);
  -webkit-backdrop-filter: blur(3px);
  backdrop-filter: blur(3px);
}
.modal {
  position: fixed; z-index: 40;
  top: 50%; left: 50%; transform: translate(-50%, -50%);
  width: min(600px, calc(100vw - 28px));
  max-height: min(88vh, 940px); overflow-y: auto;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, .04), transparent 140px),
    var(--surface-1);
  border: 1px solid var(--rule);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 24px 26px 26px;
}
/* The modal's heading is a card name and can run long. The shared
   .panel-head wraps (which is right on the main panels, where a short title
   sits beside a hint), but here wrapping drops the close button onto its own
   line under the title. Pin it: title takes the slack, × stays top-right. */
.modal .panel-head {
  flex-wrap: nowrap; align-items: flex-start; gap: 16px;
  padding-bottom: 0; margin-bottom: 12px; border-bottom: none;
}
.modal .panel-head h2 { flex: 1; min-width: 0; }
.modal .close { flex: none; margin-top: 1px; }
.close {
  background: none; border: none; cursor: pointer; font-size: 24px;
  color: var(--muted); line-height: 1; padding: 0 4px; border-radius: 6px;
}
.close:hover { color: var(--ink); }

.section { margin-bottom: 24px; }
.section > h3 { margin-bottom: 12px; }
.fields { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field.wide { grid-column: 1 / -1; }
.field label { font-size: 12.5px; color: var(--ink-2); font-weight: 550; }
.suffix { display: block; font-size: 12px; line-height: 1.5; color: var(--muted); }

.drawer-actions {
  display: flex; gap: 9px; flex-wrap: wrap; align-items: center;
  padding-top: 18px; margin-top: 18px; border-top: 1px solid var(--hairline);
}
.spacer { flex: 1; }

/* Informational by default — accent, not amber. The shooting guidance
   ("front straight-on is the minimum") is instruction, not a caution, and
   colouring it like a warning spent the page's only alarm colour on
   something that never needed it. Genuine cautions opt into .note-warn. */
.note {
  font-size: 13px; line-height: 1.55; color: var(--ink-2);
  background: var(--surface-2); border: 1px solid var(--hairline);
  border-left: 3px solid var(--accent);
  border-radius: 8px; padding: 12px 14px; margin-top: 14px;
}
.note-warn { border-left-color: var(--warning); }
.note-flag {
  border-left-color: var(--critical);
  color: var(--critical);
  margin-top: 0; margin-bottom: 14px;
}

/* -------------------------------------------------------------- banner */

.banner {
  position: sticky; top: 60px; z-index: 15;
  padding: 12px 24px; font-size: 13.5px;
  background: color-mix(in srgb, var(--accent) 22%, var(--ground));
  color: var(--ink);
  border-bottom: 1px solid var(--hairline);
}
.banner.err {
  background: color-mix(in srgb, var(--critical) 82%, #000);
  color: #fff;
}
.banner ul { margin: 5px 0 0; padding-left: 18px; }

/* ---------------------------------------------------------- grade slab */
/* Styled after the label on a graded slab, because that's the thing this
   whole app is estimating — it makes the number read as a verdict rather
   than as one more statistic on the page. Promoted to a hero element here:
   full width, bigger numerals, real elevation. */

.slab {
  display: flex; align-items: stretch; gap: 0;
  border-radius: var(--radius); overflow: hidden;
  border: 1px solid var(--rule);
  background: var(--surface-2);
  box-shadow: var(--shadow-lg);
  width: 100%;
}
.slab-main {
  flex: 1; min-width: 0; padding: 20px 22px;
  display: flex; flex-direction: column; justify-content: center; gap: 6px;
}
.slab-title { font-size: 17px; font-weight: 700; line-height: 1.3; letter-spacing: -.01em; }
.slab-sub { font-size: 12.5px; color: var(--muted); }
.slab-grade {
  position: relative; overflow: hidden;
  flex: none; width: 148px;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  padding: 20px 10px; color: #fff; text-align: center;
  background: linear-gradient(150deg, #1b4f8f, #2f6fd0);
}
.slab-grade .n {
  font-size: 58px; font-weight: 800; line-height: .95; letter-spacing: -.035em;
  font-variant-numeric: tabular-nums;
  text-shadow: 0 2px 10px rgba(0, 0, 0, .4);
}
.slab-grade .word {
  font-size: 10px; font-weight: 800; letter-spacing: .13em;
  text-transform: uppercase; opacity: .9; margin-top: 7px;
}

/* Grade bands. Green for a card worth submitting, blue upper-mid, amber mid,
   red low — the same red reserved elsewhere for "distrust this", used here
   because a low grade is genuinely the bad outcome. */
.slab-10 .slab-grade, .slab-9 .slab-grade { background: linear-gradient(150deg, #0b6d33, #16a34a); }
.slab-8 .slab-grade,  .slab-7 .slab-grade { background: linear-gradient(150deg, #1b4f8f, #2f6fd0); }
.slab-6 .slab-grade,  .slab-5 .slab-grade { background: linear-gradient(150deg, #9a5c0b, #e0891f); }
.slab-low .slab-grade { background: linear-gradient(150deg, #8f1f24, #d13a40); }

/* A 10 gets the foil treatment: a full holo sweep plus a slow shimmer pass,
   the way a refractor catches light as you tilt it. Deliberately reserved
   for the top grade so it stays meaningful. */
.slab-10 .slab-grade {
  background: linear-gradient(140deg, #0b6d33, #3ddcc0 38%, #4d9bff 66%, #a97bff);
}
.slab-10 .slab-grade::after {
  content: ''; position: absolute; inset: -60% -20%;
  background: linear-gradient(72deg,
    transparent 38%, rgba(255, 255, 255, .5) 50%, transparent 62%);
  animation: foil-sweep 3.6s ease-in-out infinite;
}
@keyframes foil-sweep {
  0%, 62% { transform: translateX(-115%); }
  100%    { transform: translateX(115%); }
}
@media (prefers-reduced-motion: reduce) {
  .slab-10 .slab-grade::after { animation: none; opacity: .25; }
}

.card-type-tag {
  display: inline-block; font-size: 10px; font-weight: 800;
  letter-spacing: .1em; text-transform: uppercase;
  padding: 3px 9px; border-radius: 5px;
  background: var(--accent-soft); color: #8fc0ff;
  border: 1px solid color-mix(in srgb, var(--accent) 38%, transparent);
}

/* --------------------------------------------------------------- phone */

@media (max-width: 700px) {
  body { font-size: 15.5px; }
  main { padding: 18px 13px 72px; gap: 16px; }
  .topbar { padding: 11px 14px; }
  .panel { padding: 18px 16px 20px; border-radius: var(--radius); }
  h2 { font-size: 19px; }
  .fields { grid-template-columns: 1fr; }
  .grid { font-size: 14px; }
  .grid td { padding: 11px 8px; }
  .grid th { padding: 9px 8px; }
  .cardcell img, .cardcell .thumb-blank { width: 40px; height: 56px; }
  .banner { top: 54px; padding: 11px 14px; }

  /* The slab stays horizontal — stacking it would bury the number, which is
     the one thing someone opens this app to see. Just tighter. */
  .slab-main { padding: 15px 16px; }
  .slab-title { font-size: 15.5px; }
  .slab-grade { width: 108px; padding: 16px 8px; }
  .slab-grade .n { font-size: 44px; }
}

/* On a narrow phone the five-column history table forces sideways
   scrolling. Confidence is the most expendable column there — the grade
   pill and the card name are what someone is actually scanning for, and
   confidence is still shown in the card's detail view. */
@media (max-width: 560px) {
  #history-table th:nth-child(3),
  #history-table td:nth-child(3) { display: none; }
}