/* ── Tokens ───────────────────────────────────────────────────────── */
:root {
  --bg:           #0b0e14;
  --surface:      rgba(26,74,26,.28);
  --border:       rgba(62,198,62,.14);
  --green-neon:   #3ec63e;
  --white:        #f0f4ff;
  --grey:         #8a94a8;
  --grey2:        #a7b2c6;
}

/* ── Hero ─────────────────────────────────────────────────────────── */
.tool-hero { padding: 90px 48px 48px; max-width: 1200px; margin: 0 auto; }
.tool-hero .section-tag { margin-bottom: 12px; }
.tool-hero h1 {
  font-family: 'Rajdhani', sans-serif;
  font-size: clamp(2.4rem, 5vw, 3.8rem);
  font-weight: 700; color: var(--white); line-height: 1.1; margin-bottom: 16px;
}
.tool-hero h1 em { font-style: normal; color: var(--green-neon); }
.tool-hero p { font-family: 'Exo 2', sans-serif; font-size: 1rem; color: var(--grey); max-width: 580px; line-height: 1.75; }
.tool-hero-glow {
  position: absolute; top: 0; left: 50%; transform: translateX(-50%);
  width: 600px; height: 300px;
  background: radial-gradient(ellipse at 50% 0%, rgba(62,198,62,.13) 0%, transparent 70%);
  pointer-events: none;
}

/* ── Layout ───────────────────────────────────────────────────────── */
.tool-wrap {
  max-width: 1200px; margin: 0 auto; padding: 0 48px 100px;
  display: grid; grid-template-columns: 1fr 1fr; gap: 24px;
}
.col-left, .col-right { display: flex; flex-direction: column; gap: 16px; }
@media (max-width: 820px) {
  .tool-wrap { grid-template-columns: 1fr; padding: 0 20px 80px; }
  .tool-hero  { padding: 70px 20px 36px; }
}

/* ── Cards ────────────────────────────────────────────────────────── */
.tool-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 12px; padding: 24px 26px; position: relative;
}
.tool-card-label {
  font-family: 'Rajdhani', sans-serif; font-size: .7rem; font-weight: 600;
  letter-spacing: .22em; text-transform: uppercase; color: var(--green-neon); margin-bottom: 16px;
  display: flex; align-items: center; gap: 10px;
}
.opt-badge {
  font-size: .62rem; letter-spacing: .14em; padding: 2px 8px;
  border: 1px solid rgba(62,198,62,.25); border-radius: 4px;
  color: rgba(62,198,62,.5); font-weight: 600; text-transform: uppercase;
}

/* ── Mode toggle ──────────────────────────────────────────────────── */
.mode-tabs { display: flex; gap: 2px; background: rgba(255,255,255,.04); border-radius: 8px; padding: 3px; margin-bottom: 18px; }
.mode-tab {
  flex: 1; padding: 9px 12px; background: transparent; border: none; border-radius: 6px;
  color: var(--grey); font-family: 'Rajdhani', sans-serif; font-weight: 600;
  font-size: .82rem; letter-spacing: .08em; cursor: pointer; transition: all .18s; text-align: center;
}
.mode-tab:hover { color: var(--white); }
.mode-tab.active { background: rgba(30,80,30,.92); color: var(--green-neon); box-shadow: inset 0 0 0 1px rgba(62,198,62,.3); }

/* ── Drop zone ────────────────────────────────────────────────────── */
.dropzone {
  border: 2px dashed var(--grey2); border-radius: 8px; padding: 28px 20px;
  text-align: center; cursor: pointer; transition: border-color .2s, background .2s;
  margin-bottom: 0; user-select: none;
}
.dropzone:hover, .dropzone.drag-over { border-color: var(--green-neon); background: rgba(62,198,62,.04); }
.dropzone.loaded { border-color: var(--grey2); border-style: solid; }
.drop-icon  { font-size: 28px; opacity: .25; margin-bottom: 8px; }
.drop-main  { font-family: 'Exo 2', sans-serif; font-size: .9rem; color: var(--grey); }
.drop-sub   { font-family: 'Exo 2', sans-serif; font-size: .78rem; color: var(--grey2); margin-top: 4px; }
.drop-check { font-size: 22px; color: var(--green-neon); margin-bottom: 6px; }
.drop-name  { font-family: 'Rajdhani', sans-serif; font-size: 1rem; font-weight: 600; color: var(--green-neon); }
.drop-meta, .drop-bounds { font-family: 'Exo 2', sans-serif; font-size: .78rem; color: var(--grey); margin-top: 3px; }

/* ── Form controls ────────────────────────────────────────────────── */
input[type=number], select {
  background: var(--bg); border: 1px solid var(--border); color: var(--white);
  border-radius: 6px; padding: 9px 12px; font-family: 'Exo 2', sans-serif;
  font-size: .88rem; outline: none; width: 100%; transition: border-color .15s;
  appearance: none; -webkit-appearance: none;
}
input[type=number]:focus, select:focus { border-color: var(--green-neon); box-shadow: 0 0 0 2px rgba(62,198,62,.12); }
select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M0 0l5 6 5-6z' fill='%238a94a8'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 12px center; padding-right: 30px; cursor: pointer;
}
input[type=checkbox] { accent-color: var(--green-neon); cursor: pointer; width: auto; }
input[type=range] {
  -webkit-appearance: none; appearance: none; width: 100%; height: 4px;
  border-radius: 2px; outline: none; cursor: pointer; border: none; padding: 0; background: rgba(255,255,255,.1);
}
input[type=range]::-webkit-slider-thumb {
  -webkit-appearance: none; width: 16px; height: 16px; border-radius: 50%;
  background: var(--green-neon); cursor: pointer; border: 2px solid var(--bg); box-shadow: 0 0 6px rgba(62,198,62,.5);
}
input[type=range]::-moz-range-thumb {
  width: 16px; height: 16px; border-radius: 50%;
  background: var(--green-neon); cursor: pointer; border: 2px solid var(--bg);
}

/* ── Labels / sliders ─────────────────────────────────────────────── */
.field-label {
  font-family: 'Rajdhani', sans-serif; font-size: .8rem; font-weight: 600;
  letter-spacing: .14em; text-transform: uppercase; color: var(--grey); display: block; margin-bottom: 6px;
}
.slider-header { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 8px; }
.slider-header .field-label { margin-bottom: 0; }
.slider-val { font-family: 'Rajdhani', sans-serif; font-size: .95rem; font-weight: 700; color: var(--green-neon); }
.slider-hints { display: flex; justify-content: space-between; font-family: 'Exo 2', sans-serif; font-size: .7rem; color: var(--grey2); margin-top: 5px; }
.slider-row { margin-bottom: 18px; }
.sel-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.check-row { display: flex; align-items: center; gap: 8px; }
.check-row label { font-family: 'Exo 2', sans-serif; font-size: .84rem; color: var(--grey); cursor: pointer; }
.inline-row { display: flex; align-items: center; gap: 8px; margin-top: 10px; }
.inline-unit { font-family: 'Rajdhani', sans-serif; font-size: .8rem; color: var(--grey2); white-space: nowrap; }

/* ── Material buttons ─────────────────────────────────────────────── */
.mat-grid { display: flex; flex-wrap: wrap; gap: 7px; margin-bottom: 12px; }
.mat-btn {
  border: 1px solid var(--border); background: transparent; color: var(--grey);
  border-radius: 6px; padding: 5px 14px; font-family: 'Rajdhani', sans-serif;
  font-size: .85rem; font-weight: 600; letter-spacing: .05em; cursor: pointer;
  transition: all .15s; display: flex; align-items: center; gap: 6px;
}
.mat-btn:hover { border-color: rgba(255,255,255,.2); color: var(--white); }
.mat-btn.active { border-color: var(--green-neon); color: var(--green-neon); background: rgba(30,80,30,.92); box-shadow: 0 0 10px rgba(62,198,62,.15); }
.mat-dot { width: 7px; height: 7px; border-radius: 50%; flex-shrink: 0; }
.mat-info { font-family: 'Exo 2', sans-serif; font-size: .78rem; color: var(--grey2); }
.custom-dens { display: flex; align-items: center; gap: 10px; margin-top: 10px; }
.custom-dens label { font-family: 'Exo 2', sans-serif; font-size: .84rem; color: var(--grey); white-space: nowrap; }
.custom-dens input { width: 90px; }

/* ── Auto-time callout (STL mode) ─────────────────────────────────── */
.auto-info-box {
  background: rgba(62,198,62,.05); border: 1px solid rgba(62,198,62,.2);
  border-radius: 8px; padding: 12px 16px; margin-bottom: 14px;
}
.auto-info-lbl { font-family: 'Rajdhani', sans-serif; font-size: .65rem; letter-spacing: .2em; text-transform: uppercase; color: rgba(62,198,62,.55); margin-bottom: 3px; }
.auto-info-val { font-family: 'Rajdhani', sans-serif; font-size: 1.25rem; font-weight: 700; color: var(--green-neon); }

/* ── Price hint ───────────────────────────────────────────────────── */
.price-hint { font-family: 'Exo 2', sans-serif; font-size: .76rem; color: var(--grey2); margin-top: 6px; line-height: 1.5; }

/* ── Error ────────────────────────────────────────────────────────── */
.error-msg {
  font-family: 'Exo 2', sans-serif; font-size: .8rem; color: #f87171; margin-top: 8px;
  padding: 6px 10px; background: rgba(248,113,113,.08); border-radius: 4px; border-left: 2px solid #f87171;
}

/* ── Tip box ──────────────────────────────────────────────────────── */
.tip-box {
  background: rgba(62,198,62,.04); border: 1px solid rgba(62,198,62,.15);
  border-left: 3px solid var(--green-neon); border-radius: 8px; padding: 14px 16px;
  font-family: 'Exo 2', sans-serif; font-size: .82rem; color: var(--grey); line-height: 1.75;
}
.tip-box strong { font-family: 'Rajdhani', sans-serif; font-weight: 700; color: var(--green-neon); letter-spacing: .08em; }

/* ── 3D preview ───────────────────────────────────────────────────── */
.preview-toolbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 8px 14px; border-top: 1px solid rgba(62,198,62,.12);
}
.toolbar-left { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.view-btns { display: flex; gap: 4px; }
#btn-autorotate { letter-spacing: .08em; }
.view-btn {
  background: transparent; border: 1px solid rgba(62,198,62,.25); color: #a7b2c6;
  font-family: 'Rajdhani', sans-serif; font-size: .68rem; letter-spacing: .1em; text-transform: uppercase;
  padding: 5px 10px; cursor: pointer; transition: border-color .15s, color .15s, background .15s;
}
.view-btn:hover { border-color: var(--green-neon); color: var(--green-neon); }
.view-btn.active { border-color: var(--green-neon); color: var(--green-neon); background: rgba(30,80,30,.92); }
.preview-color { display: flex; align-items: center; gap: 8px; }
.preview-color-label { font-family: 'Rajdhani', sans-serif; font-size: .68rem; letter-spacing: .1em; text-transform: uppercase; color: #a7b2c6; }
.color-dots { display: flex; align-items: center; gap: 5px; }
.color-dot {
  width: 16px; height: 16px; border-radius: 50%; cursor: pointer;
  border: 2px solid transparent; transition: border-color .1s, transform .1s;
  flex-shrink: 0;
}
.color-dot:hover, .color-dot.active { border-color: #fff; transform: scale(1.15); }
.preview-hint { text-align: center; padding: 4px 0 8px; font-family: 'Rajdhani', sans-serif; font-size: .68rem; letter-spacing: .14em; text-transform: uppercase; color: #a7b2c6; }

/* ── Total cost display ───────────────────────────────────────────── */
.cost-display { font-family: 'Rajdhani', sans-serif; font-size: 4rem; font-weight: 700; line-height: 1; color: var(--green-neon); letter-spacing: -.02em; }
.cost-sub { font-family: 'Exo 2', sans-serif; font-size: .84rem; color: var(--grey); margin-top: 6px; margin-bottom: 20px; }
.split-bar-wrap { margin: 16px 0 8px; }
.split-bar { height: 8px; border-radius: 4px; overflow: hidden; background: rgba(255,255,255,.06); display: flex; }
.split-seg { height: 100%; transition: width .4s cubic-bezier(.4,0,.2,1); }
.split-legend { display: flex; gap: 16px; margin-top: 8px; font-family: 'Exo 2', sans-serif; font-size: .78rem; color: var(--grey2); flex-wrap: wrap; }
.split-legend span { display: flex; align-items: center; gap: 5px; }
.split-dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }

/* ── Gauge / spool ────────────────────────────────────────────────── */
#gaugeWrap { text-align: center; }
#gaugeWrap svg { display: block; margin: 0 auto; }
.gauge-mass { font-family: 'Rajdhani', sans-serif; font-size: 3rem; font-weight: 700; color: var(--white); line-height: 1; margin-top: 4px; }
.gauge-mass em { font-style: normal; font-size: 1rem; color: var(--grey); font-family: 'Exo 2', sans-serif; font-weight: 400; }
.gauge-sub { font-family: 'Exo 2', sans-serif; font-size: .84rem; color: var(--grey); margin-top: 4px; }
.status-box { margin-top: 14px; border-radius: 8px; padding: 10px 14px; font-family: 'Exo 2', sans-serif; font-size: .88rem; }
.status-box.ok   { background: rgba(62,198,62,.06);  border: 1px solid rgba(62,198,62,.25);  color: #4ade80; }
.status-box.warn { background: rgba(248,113,113,.06); border: 1px solid rgba(248,113,113,.25); color: #f87171; }

/* ── Print time result ────────────────────────────────────────────── */
.time-display { font-family: 'Rajdhani', sans-serif; font-size: 3rem; font-weight: 700; color: var(--green-neon); line-height: 1; letter-spacing: -.02em; }
.time-sub { font-family: 'Exo 2', sans-serif; font-size: .78rem; color: var(--grey); margin-top: 4px; margin-bottom: 16px; }

/* ── Breakdown bars ───────────────────────────────────────────────── */
.bd-row { margin-bottom: 12px; }
.bd-label { display: flex; justify-content: space-between; font-family: 'Exo 2', sans-serif; font-size: .84rem; color: var(--grey); margin-bottom: 5px; }
.bd-label.bold { font-family: 'Rajdhani', sans-serif; font-size: .95rem; font-weight: 700; color: var(--white); letter-spacing: .04em; }
.bd-bar { height: 3px; background: rgba(255,255,255,.06); border-radius: 2px; }
.bd-fill { height: 3px; border-radius: 2px; transition: width .5s cubic-bezier(.4,0,.2,1); }

/* ── Mini stats ───────────────────────────────────────────────────── */
.mini-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.mini-card { background: var(--surface); border: 1px solid var(--border); border-radius: 10px; padding: 14px 16px; }
.mini-label { font-family: 'Rajdhani', sans-serif; font-size: .68rem; font-weight: 600; letter-spacing: .18em; text-transform: uppercase; color: var(--grey2); }
.mini-val { font-family: 'Rajdhani', sans-serif; font-size: 1.5rem; font-weight: 700; color: var(--green-neon); margin: 4px 0 2px; line-height: 1; }
.mini-sub { font-family: 'Exo 2', sans-serif; font-size: .74rem; color: var(--grey2); }

/* ── Selling price ────────────────────────────────────────────────── */
.sell-price-big { font-family: 'Rajdhani', sans-serif; font-size: 2.4rem; font-weight: 700; color: #38bdf8; line-height: 1; margin: 10px 0 4px; }
.sell-profit { font-family: 'Exo 2', sans-serif; font-size: .82rem; color: #4ade80; margin-top: 2px; }
.sell-row { display: flex; justify-content: space-between; align-items: baseline; padding: 10px 0; border-bottom: 1px solid var(--border); font-family: 'Exo 2', sans-serif; font-size: .88rem; color: var(--grey); }
.sell-row:last-child { border-bottom: none; padding-bottom: 0; }
.sell-row strong { font-family: 'Rajdhani', sans-serif; font-weight: 700; }

/* ── Accuracy note ────────────────────────────────────────────────── */
.accuracy-note { max-width: 1200px; margin: 0 auto; padding: 28px 48px 60px; border-top: 1px solid rgba(255,255,255,.06); display: flex; flex-direction: column; gap: 10px; }
.accuracy-note p { font-family: 'Exo 2', sans-serif; font-size: .78rem; color: var(--grey2); line-height: 1.75; margin: 0; }
.accuracy-note strong { color: var(--grey); font-weight: 600; }
@media (max-width: 820px) { .accuracy-note { padding: 28px 20px 40px; } }

/* ── Site-wide consistency: translucent at rest (bg shows through), fill on hover ── */
.tool-card, .mini-card {
  transition: background .2s, border-color .2s;
}
.tool-card:hover, .mini-card:hover {
  background: rgba(30,80,30,.92);
  border-color: rgba(62,198,62,.40);
}