/* QuikBolus Web -- Radiant Medical Physics brand stylesheet.
   Crimson #d00008, charcoal #303030, white background, Montserrat. */

@font-face {
  font-family: 'Montserrat';
  src: url('../fonts/Montserrat-Regular.ttf') format('truetype');
  font-weight: 400; font-display: swap;
}
@font-face {
  font-family: 'Montserrat';
  src: url('../fonts/Montserrat-Medium.ttf') format('truetype');
  font-weight: 500; font-display: swap;
}
@font-face {
  font-family: 'Montserrat';
  src: url('../fonts/Montserrat-SemiBold.ttf') format('truetype');
  font-weight: 600; font-display: swap;
}
@font-face {
  font-family: 'Montserrat';
  src: url('../fonts/Montserrat-Bold.ttf') format('truetype');
  font-weight: 700; font-display: swap;
}
@font-face {
  font-family: 'Montserrat';
  src: url('../fonts/Montserrat-ExtraBold.ttf') format('truetype');
  font-weight: 800; font-display: swap;
}
@font-face {
  font-family: 'JetBrains Mono';
  src: url('../fonts/JetBrainsMono-Regular.ttf') format('truetype');
  font-weight: 400; font-display: swap;
}

:root {
  --bg: #ffffff;
  --bg-elev: #fafafa;
  --bg-card: #f4f4f5;
  --line: #e6e6e8;
  --line-hi: #cdcdd1;
  --text: #1a1a1a;
  --text-mute: #5a5a5a;
  --text-dim: #8a8a8a;
  --charcoal: #303030;
  --accent: #d00008;
  --accent-dark: #a80006;
  --accent-bright: #f03020;
  --ok: #1b8a4c;
  --font: 'Montserrat', 'Segoe UI', system-ui, sans-serif;
  --mono: 'JetBrains Mono', 'Cascadia Mono', Consolas, monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body { height: 100%; }

body {
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* ----- top bar ----- */
.topbar { background: var(--bg); flex: none; }
.topbar-inner {
  max-width: 1080px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; padding: 14px 26px;
}
.brand { display: flex; align-items: center; gap: 13px; text-decoration: none; }
.brand img { height: 42px; width: auto; display: block; }
.brand-text { display: flex; flex-direction: column; line-height: 1.2; }
.wordmark {
  font-weight: 800; font-size: 21px; letter-spacing: -0.02em;
  color: var(--text);
}
.wordmark em { font-style: normal; color: var(--accent); }
.tag {
  font-family: var(--mono); font-size: 9.5px; text-transform: uppercase;
  letter-spacing: 0.14em; color: var(--text-dim); margin-top: 2px;
}
.topbar-note {
  font-family: var(--mono); font-size: 11px; text-transform: uppercase;
  letter-spacing: 0.12em; color: var(--text-dim);
}
.accent-rule { height: 3px; background: var(--accent); }

/* ----- page layout ----- */
.page {
  max-width: 1080px; width: 100%; margin: 0 auto;
  padding: 34px 26px 50px; flex: 1;
}

.site-footer {
  max-width: 1080px; margin: 0 auto; width: 100%;
  padding: 22px 26px 32px; border-top: 1px solid var(--line);
}
.site-footer p {
  font-size: 12px; color: var(--text-dim); line-height: 1.6;
}
.site-footer strong { color: var(--charcoal); }

/* ----- headings ----- */
h1 {
  font-size: 28px; font-weight: 800; letter-spacing: -0.02em;
  margin-bottom: 6px;
}
h2 {
  font-size: 18px; font-weight: 700; margin-bottom: 14px;
  color: var(--charcoal);
}
.lead { color: var(--text-mute); font-size: 14.5px; margin-bottom: 26px; }

.eyebrow {
  font-family: var(--mono); font-size: 10.5px; text-transform: uppercase;
  letter-spacing: 0.16em; color: var(--accent); margin-bottom: 8px;
  font-weight: 500;
}

/* ----- cards ----- */
.card {
  background: var(--bg); border: 1px solid var(--line);
  border-radius: 8px; padding: 26px;
  box-shadow: 0 1px 3px rgba(48, 48, 48, 0.04);
}
.card + .card { margin-top: 20px; }

.grid-2 {
  display: grid; grid-template-columns: 1fr 1fr; gap: 20px;
}
@media (max-width: 720px) { .grid-2 { grid-template-columns: 1fr; } }

/* ----- step indicator ----- */
.steps {
  display: flex; gap: 8px; margin-bottom: 26px;
  font-family: var(--mono); font-size: 11px;
}
.steps .step {
  display: flex; align-items: center; gap: 7px;
  padding: 6px 12px; border-radius: 5px;
  background: var(--bg-card); color: var(--text-dim);
  border: 1px solid var(--line);
}
.steps .step.active {
  background: var(--accent); color: #fff; border-color: var(--accent);
}
.steps .step.done {
  background: #fff; color: var(--accent); border-color: var(--accent);
}
.steps .step .num {
  font-weight: 700;
}

/* ----- forms ----- */
.field { margin-bottom: 18px; }
.field label {
  display: block; font-size: 13px; font-weight: 600;
  color: var(--charcoal); margin-bottom: 6px;
}
.field .hint {
  font-size: 12px; color: var(--text-dim); margin-top: 4px;
}
input[type="text"], input[type="number"], select {
  width: 100%; font-family: var(--font); font-size: 14px;
  color: var(--text); background: var(--bg);
  border: 1px solid var(--line-hi); border-radius: 5px;
  padding: 9px 11px;
}
input[type="number"] { max-width: 160px; }
input:focus, select:focus {
  outline: none; border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(208, 0, 8, 0.10);
}

.check {
  display: flex; align-items: center; gap: 9px; margin-bottom: 12px;
  font-size: 13.5px; color: var(--charcoal);
}
.check input[type="checkbox"] {
  width: 17px; height: 17px; accent-color: var(--accent);
  cursor: pointer;
}
.check label { cursor: pointer; font-weight: 500; }

/* ----- file drop ----- */
.dropzone {
  display: block;
  border: 2px dashed var(--line-hi); border-radius: 8px;
  padding: 40px 24px; text-align: center; cursor: pointer;
  transition: all 0.15s; background: var(--bg-elev);
}
.dropzone:hover, .dropzone.drag {
  border-color: var(--accent); background: rgba(208, 0, 8, 0.03);
}
.dropzone .dz-icon { font-size: 38px; line-height: 1; margin-bottom: 10px; }
.dropzone .dz-main { font-size: 15px; font-weight: 600; }
.dropzone .dz-sub { font-size: 12.5px; color: var(--text-dim); margin-top: 5px; }
.dropzone .dz-file {
  margin-top: 12px; font-family: var(--mono); font-size: 12.5px;
  color: var(--accent); font-weight: 500;
}
input[type="file"] { display: none; }

/* ----- buttons ----- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font); font-weight: 700; font-size: 13.5px;
  letter-spacing: 0.01em; cursor: pointer;
  border-radius: 6px; padding: 11px 22px; border: 1px solid transparent;
  transition: all 0.15s; text-decoration: none;
}
.btn-primary {
  background: var(--accent); color: #fff; border-color: var(--accent);
}
.btn-primary:hover { background: var(--accent-dark); border-color: var(--accent-dark); }
.btn-primary:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-ghost {
  background: var(--bg); color: var(--charcoal); border-color: var(--line-hi);
}
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }
.btn-row { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 8px; }

/* ----- alerts ----- */
.alert {
  border-radius: 6px; padding: 12px 16px; font-size: 13.5px;
  margin-bottom: 20px; line-height: 1.5;
}
.alert-error {
  background: #fdecec; border: 1px solid #f5b5b5; color: #8a1010;
}
.alert-info {
  background: #eef4fb; border: 1px solid #c3d6ec; color: #1c4a7a;
}

/* ----- stats grid ----- */
.stat-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px;
}
@media (max-width: 720px) { .stat-grid { grid-template-columns: 1fr 1fr; } }
.stat {
  background: var(--bg-card); border: 1px solid var(--line);
  border-radius: 7px; padding: 15px 16px;
}
.stat .sl {
  font-family: var(--mono); font-size: 10px; text-transform: uppercase;
  letter-spacing: 0.12em; color: var(--text-dim); margin-bottom: 6px;
}
.stat .sv {
  font-size: 21px; font-weight: 700; color: var(--charcoal);
}
.stat .sv small { font-size: 13px; font-weight: 500; color: var(--text-mute); }
.stat .sv.ok { color: var(--ok); }
.stat .sv.bad { color: var(--accent); }

/* ----- watertight badge ----- */
.badge {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 12px; font-weight: 700; padding: 4px 11px;
  border-radius: 20px; text-transform: uppercase; letter-spacing: 0.04em;
}
.badge.ok { background: #e3f5ea; color: var(--ok); }
.badge.bad { background: #fdecec; color: var(--accent); }

/* ----- log ----- */
.log {
  font-family: var(--mono); font-size: 11.5px; line-height: 1.65;
  background: var(--charcoal); color: #d8d8d8;
  border-radius: 6px; padding: 14px 16px;
  max-height: 280px; overflow: auto; white-space: pre-wrap;
}

/* ----- viewer iframe ----- */
.viewer-frame {
  width: 100%; height: 520px; border: 1px solid var(--line);
  border-radius: 8px; background: #edecee; display: block;
}

/* ----- definition list ----- */
.dl { display: grid; grid-template-columns: auto 1fr; gap: 7px 18px; }
.dl dt {
  font-size: 12.5px; color: var(--text-dim); font-weight: 500;
}
.dl dd { font-size: 13px; font-weight: 600; color: var(--charcoal); }

/* ----- spinner overlay ----- */
.overlay {
  position: fixed; inset: 0; background: rgba(255, 255, 255, 0.92);
  display: none; align-items: center; justify-content: center;
  flex-direction: column; gap: 18px; z-index: 100;
}
.overlay.show { display: flex; }
.spinner {
  width: 46px; height: 46px; border-radius: 50%;
  border: 4px solid var(--line); border-top-color: var(--accent);
  animation: spin 0.85s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.overlay .ov-text { font-weight: 700; font-size: 15px; color: var(--charcoal); }
.overlay .ov-sub { font-size: 13px; color: var(--text-mute); }

.muted { color: var(--text-dim); font-size: 12.5px; }
.divider { height: 1px; background: var(--line); margin: 22px 0; }