/* ==========================================================================
   Early English Books — Sonic Register
   Shared design tokens & components across the three archive tools.
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,500;0,600;0,700;1,500&family=Spectral:ital,wght@0,400;0,500;0,600;1,400&family=IBM+Plex+Mono:wght@400;500;600&display=swap');

:root{
  /* -- palette: card-catalogue / letterpress ---------------------------- */
  --paper:      #ece7d6;   /* aged card stock */
  --paper-dim:  #ddd6bd;   /* recessed paper (wells, tracks) */
  --card:       #f4f0e2;   /* raised card surface */
  --ink:        #1b2a22;   /* iron-gall, faded to bottle-green-black */
  --ink-soft:   #3c4a3f;   /* secondary ink */
  --rule:       #b9ae8d;   /* faded rule lines / borders */
  --rule-soft:  #d2c9a8;
  --red:        #8b2e1f;   /* wax-seal red — primary accent / active state */
  --red-dim:    #b06450;
  --gold:       #a9862f;   /* brass / gilt — secondary accent */
  --wood:       #0f1710;   /* drawer / cabinet shadow */
  --wood-2:     #182018;

  --font-display: 'Cormorant Garamond', 'Times New Roman', serif;
  --font-body:    'Spectral', Georgia, serif;
  --font-mono:    'IBM Plex Mono', ui-monospace, monospace;

  --radius: 3px;
  --shadow-card: 0 1px 0 rgba(255,255,255,0.5) inset, 0 10px 24px rgba(15,23,16,0.35);
}

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

html, body{
  margin:0; padding:0;
  background:
    radial-gradient(ellipse at 20% -10%, #24301f 0%, transparent 55%),
    linear-gradient(180deg, var(--wood-2) 0%, var(--wood) 100%);
  color: var(--ink);
  font-family: var(--font-body);
  min-height: 100vh;
}

body{
  background-image:
    repeating-linear-gradient(0deg, rgba(0,0,0,0.05) 0px, rgba(0,0,0,0.05) 1px, transparent 1px, transparent 3px),
    radial-gradient(ellipse at 20% -10%, #24301f 0%, transparent 55%),
    linear-gradient(180deg, var(--wood-2) 0%, var(--wood) 100%);
}

a{ color: var(--red); }

/* -- drawer label / masthead ------------------------------------------- */
.masthead{
  max-width: 1080px;
  margin: 0 auto;
  padding: 2.6rem 1.5rem 1rem;
  color: var(--paper);
}
.masthead .eyebrow{
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold);
  display:flex;
  align-items:center;
  gap: 0.6em;
}
.masthead .eyebrow::before{
  content:'';
  width: 22px; height: 1px; background: var(--gold);
  display:inline-block;
}
.masthead h1{
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2rem, 4.5vw, 3.1rem);
  margin: 0.25em 0 0.15em;
  letter-spacing: 0.01em;
}
.masthead p.lede{
  font-family: var(--font-body);
  font-style: italic;
  color: #cfc7a9;
  max-width: 62ch;
  line-height: 1.5;
  margin: 0.2em 0 0;
}
.masthead nav{
  margin-top: 1.4rem;
  display:flex; gap: 1.4rem; flex-wrap: wrap;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.masthead nav a{
  color: #cfc7a9;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  padding-bottom: 3px;
}
.masthead nav a:hover, .masthead nav a.current{
  color: var(--paper);
  border-bottom-color: var(--red);
}

/* -- the "card" panel that holds each tool ------------------------------ */
.card{
  max-width: 1080px;
  margin: 0 auto 3rem;
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  border: 1px solid #cfc4a0;
  position: relative;
  overflow: hidden;
}
.card::before{
  /* punch-hole, catalogue-card detail */
  content:'';
  position:absolute; top:14px; left:14px;
  width:9px; height:9px; border-radius:50%;
  background: var(--wood);
  box-shadow: inset 0 1px 2px rgba(0,0,0,0.6);
}
.card-inner{ padding: 2rem 2.2rem 2.4rem; }

.card-tab{
  display:flex; align-items:center; justify-content:space-between;
  gap: 1rem;
  padding: 0.9rem 2.2rem;
  border-bottom: 1px solid var(--rule);
  background: linear-gradient(180deg, #f7f3e7, #efe9d7);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.card-tab .tag-no{ color: var(--red); font-weight: 600; }

h2.tool-title{
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.9rem;
  margin: 0 0 0.2rem;
  color: var(--ink);
}
p.tool-desc{
  color: var(--ink-soft);
  max-width: 68ch;
  line-height: 1.55;
  margin: 0 0 1.6rem;
}

/* -- upload well ---------------------------------------------------------*/
.upload-well{
  border: 1.5px dashed var(--rule);
  border-radius: var(--radius);
  background: var(--paper-dim);
  padding: 1.1rem 1.3rem;
  display:flex;
  align-items:center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 1.6rem;
  transition: border-color .15s ease, background .15s ease;
}
.upload-well.drag{
  border-color: var(--red);
  background: #efe4d3;
}
.upload-well .u-left{
  display:flex; align-items:center; gap: 0.9rem;
}
.upload-well .u-icon{
  width: 34px; height: 34px;
  border: 1px solid var(--rule);
  border-radius: 50%;
  display:flex; align-items:center; justify-content:center;
  color: var(--red);
  font-family: var(--font-display);
  font-weight:700;
  background: var(--card);
  flex: none;
}
.upload-well .u-text .u-title{
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--ink);
}
.upload-well .u-text .u-sub{
  font-size: 0.8rem;
  color: var(--ink-soft);
  margin-top: 2px;
}
.upload-well input[type=file]{ display:none; }

.btn{
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border: 1px solid var(--ink);
  background: var(--ink);
  color: var(--paper);
  padding: 0.62em 1.1em;
  border-radius: 2px;
  cursor: pointer;
  transition: background .15s ease, color .15s ease, transform .05s ease;
  white-space: nowrap;
}
.btn:hover{ background: var(--red); border-color: var(--red); }
.btn:active{ transform: translateY(1px); }
.btn.ghost{
  background: transparent;
  color: var(--ink);
  border-color: var(--rule);
}
.btn.ghost:hover{ background: var(--paper); color: var(--red); border-color: var(--red); }
.btn:disabled{ opacity: 0.4; cursor: not-allowed; }
.btn:disabled:hover{ background: var(--ink); border-color: var(--ink); }

.btn-row{ display:flex; gap: 0.6rem; flex-wrap: wrap; align-items:center; }

/* -- status / meta strip --------------------------------------------------*/
.meta-strip{
  display:flex; gap: 1.6rem; flex-wrap: wrap;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--ink-soft);
  margin: 0.9rem 0 1.4rem;
  padding-top: 0.8rem;
  border-top: 1px dotted var(--rule);
}
.meta-strip b{ color: var(--ink); }

/* -- controls grid ---------------------------------------------------------*/
.controls{
  display:grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1rem 1.4rem;
  padding: 1.1rem 1.3rem;
  background: var(--paper-dim);
  border-radius: var(--radius);
  margin-bottom: 1.4rem;
  border: 1px solid var(--rule-soft);
}
.field label{
  display:block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-bottom: 0.4rem;
}
.field select, .field input[type=number], .field input[type=text]{
  width: 100%;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  padding: 0.44em 0.55em;
  border: 1px solid var(--rule);
  border-radius: 2px;
  background: var(--card);
  color: var(--ink);
}
.field input[type=range]{
  width: 100%;
  accent-color: var(--red);
}
.field .val{
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--red);
}

/* -- chart mount ---------------------------------------------------------*/
.chart-wrap{
  background: var(--card);
  border: 1px solid var(--rule-soft);
  border-radius: var(--radius);
  padding: 0.6rem 0.6rem 0;
  margin-bottom: 1.2rem;
}

/* -- playhead / needle ----------------------------------------------------*/
.transport{
  display:flex; align-items:center; gap: 1rem; flex-wrap: wrap;
  margin-bottom: 0.4rem;
}
.needle-strip{
  flex: 1 1 220px;
  height: 34px;
  position: relative;
  background:
    repeating-linear-gradient(90deg, var(--rule) 0 1px, transparent 1px 8%);
  border-bottom: 1px solid var(--rule);
}
.needle{
  position:absolute; top:0; bottom:0; left:0;
  width: 2px;
  background: var(--red);
  box-shadow: 0 0 6px rgba(139,46,31,0.7);
  transition: left 0.05s linear;
}

footer.byline{
  text-align:center;
  color: #a89a76;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  padding: 1rem 1rem 2.4rem;
}

/* -- small helpers ---------------------------------------------------------*/
.hidden{ display:none !important; }
.hint{ font-size: 0.78rem; color: var(--ink-soft); }
.errbox{
  border:1px solid var(--red);
  background: #f6e3dd;
  color: var(--red);
  padding: 0.7rem 0.9rem;
  border-radius: var(--radius);
  font-size: 0.85rem;
  margin-bottom: 1rem;
  font-family: var(--font-mono);
}

table.datatable{
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-mono);
  font-size: 0.78rem;
}
table.datatable th, table.datatable td{
  text-align:left;
  padding: 0.4em 0.6em;
  border-bottom: 1px solid var(--rule-soft);
}
table.datatable th{
  color: var(--ink-soft);
  text-transform: uppercase;
  font-size: 0.66rem;
  letter-spacing: 0.06em;
}
table.datatable input{
  width: 8em;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  padding: 0.2em 0.35em;
  border: 1px solid var(--rule);
  background: var(--card);
}

/* -- landing index grid ----------------------------------------------------*/
.tool-grid{
  display:grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.4rem;
  max-width: 1080px;
  margin: 0 auto 3rem;
  padding: 0 1.5rem;
}
.tool-card{
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  border: 1px solid #cfc4a0;
  padding: 1.6rem 1.6rem 1.8rem;
  text-decoration: none;
  color: var(--ink);
  display:flex;
  flex-direction: column;
  gap: 0.6rem;
  position: relative;
  transition: transform .15s ease;
}
.tool-card:hover{ transform: translateY(-3px); }
.tool-card .num{
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--red);
  letter-spacing: 0.1em;
}
.tool-card h3{
  font-family: var(--font-display);
  font-size: 1.5rem;
  margin: 0;
}
.tool-card p{
  color: var(--ink-soft);
  font-size: 0.9rem;
  line-height: 1.5;
  margin: 0;
}
.tool-card .go{
  margin-top: auto;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--red);
}