/* ============================================================================
   Digital Metadata Remover — Design System
   ============================================================================
   Direction: a serious technical utility, not a startup landing page.
   Trustworthy, precise, quiet. No neon, no gradients, no glassmorphism,
   no stock imagery, minimal iconography.

   Layout note: every page uses .container-fluid + .row + .col-12 (see
   templates), so content spans the full viewport width with a consistent
   gutter — no centered max-width "container" whitespace on large screens.
   ========================================================================= */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=IBM+Plex+Mono:wght@500&display=swap');

:root {
  /* --- Palette --- */
  --bg: #FAFAF8;
  --surface: #FFFFFF;
  --ink: #161B20;
  --ink-muted: #5C6670;
  --ink-faint: #8A939D;
  --border: #E3E7E8;
  --border-strong: #CDD3D5;

  --accent: #0E6B6A;
  --accent-ink: #0A4F4E;
  --accent-soft: #E7F3F2;
  --accent-soft-strong: #D3E9E7;

  --success: #1E8E4F;
  --success-soft: #E7F5EC;
  --warning: #A5680B;
  --warning-soft: #FBF1DF;
  --error: #B93B3F;
  --error-soft: #FBEAEA;

  /* --- Type --- */
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'IBM Plex Mono', 'SFMono-Regular', Menlo, monospace;

  /* --- Rhythm --- */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --gutter: clamp(1.25rem, 4vw, 3rem);
}

/* ---------------------------------------------------------------------------
   Base
   ------------------------------------------------------------------------ */
html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--bg);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--ink);
}
h1 { letter-spacing: -0.03em; }
p { color: var(--ink); }
.text-muted { color: var(--ink-muted) !important; }
.lead { color: var(--ink-muted); font-weight: 400; }

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-ink); text-decoration: underline; }

hr { border-color: var(--border); opacity: 1; }

/* Full-bleed section rows: gutter scales with viewport instead of a hard
   Bootstrap breakpoint container, so content genuinely reaches 100% width
   while never touching the edge on small screens. */
.container-fluid { padding-left: var(--gutter); padding-right: var(--gutter); }
.bg-surface { background: var(--surface); }
.bg-tint { background: var(--accent-soft); }
.border-hair { border: 1px solid var(--border) !important; }

/* Monospace treatment for anything technical: metadata field names/values,
   coordinates, counts. Gives the "precision" feel the brief asks for. */
.font-mono, code, .metadata-field, .metadata-value, .stat-figure {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

/* ---------------------------------------------------------------------------
   Buttons
   ------------------------------------------------------------------------ */
.btn { border-radius: var(--radius-sm); font-weight: 600; padding: 0.62rem 1.35rem; }
.btn-lg { padding: 0.85rem 1.75rem; }
.btn-sm { padding: 0.4rem 0.9rem; font-weight: 500; }

.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.btn-primary:hover, .btn-primary:focus {
  background: var(--accent-ink);
  border-color: var(--accent-ink);
  color: #fff;
}

.btn-outline-primary {
  color: var(--accent);
  border-color: var(--accent);
}
.btn-outline-primary:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.btn-outline-secondary {
  color: var(--ink);
  border-color: var(--border-strong);
}
.btn-outline-secondary:hover {
  background: var(--ink);
  border-color: var(--ink);
  color: #fff;
}

.btn:focus-visible, a:focus-visible, input:focus-visible, button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* ---------------------------------------------------------------------------
   Badges / alerts — remapped from Bootstrap's default palette to ours
   ------------------------------------------------------------------------ */
.badge { font-weight: 600; letter-spacing: 0.01em; border-radius: var(--radius-sm); }
.badge.text-bg-danger  { background: var(--error) !important;   color: #fff !important; }
.badge.text-bg-warning { background: var(--warning) !important; color: #fff !important; }
.badge.text-bg-success { background: var(--success) !important; color: #fff !important; }
.badge.text-bg-secondary { background: var(--ink-faint) !important; color: #fff !important; }

.alert { border-radius: var(--radius-md); border: 1px solid transparent; }
.alert-success  { background: var(--success-soft); color: #14602F; border-color: #CBE8D6; }
.alert-warning  { background: var(--warning-soft); color: #7A4D08; border-color: #EFDBAF; }
.alert-danger   { background: var(--error-soft);   color: #8B2C2F; border-color: #F1CACB; }
.alert-secondary{ background: var(--surface); color: var(--ink-muted); border-color: var(--border); }

/* ---------------------------------------------------------------------------
   Header / brand
   ------------------------------------------------------------------------ */
.site-header { background: var(--surface); border-bottom: 1px solid var(--border); }

.brand-lockup { display: inline-flex; align-items: center; gap: 0.6rem; }
.brand-mark { flex: none; display: block; color: var(--accent); }
.brand-text { display: inline-flex; flex-direction: column; line-height: 1.05; }
.brand-eyebrow {
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-faint);
}
.brand-name {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -0.01em;
}
.navbar-brand:hover .brand-name { color: var(--ink); }
.navbar-brand:hover { text-decoration: none; }

.site-header .nav-link {
  color: var(--ink-muted);
  font-weight: 500;
  font-size: 0.94rem;
}
.site-header .nav-link:hover { color: var(--ink); }

/* ---------------------------------------------------------------------------
   Hero
   ------------------------------------------------------------------------ */
.hero {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}
.hero .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-ink);
  background: var(--accent-soft);
  border-radius: 999px;
  padding: 0.35rem 0.85rem;
}
.hero h1 { font-size: clamp(2rem, 4vw, 2.85rem); max-width: 18ch; }
.hero .lead { max-width: 52ch; font-size: 1.15rem; }

.reveal-list { list-style: none; margin: 0; padding: 0; }
.reveal-list li {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.55rem 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.95rem;
}
.reveal-list li:last-child { border-bottom: none; }
.reveal-dot {
  width: 0.5rem; height: 0.5rem; border-radius: 50%;
  flex: none;
  background: var(--accent);
}

/* Upload dropzone — elegant, integrated, not a dashed placeholder box */
.upload-panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: 0 1px 2px rgba(20, 24, 28, 0.04), 0 12px 32px -18px rgba(20, 24, 28, 0.18);
}
.upload-panel.drag-over {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.upload-drop-icon {
  width: 3rem; height: 3rem;
  border-radius: var(--radius-md);
  background: var(--accent-soft);
  color: var(--accent-ink);
  display: flex; align-items: center; justify-content: center;
}

/* ---------------------------------------------------------------------------
   Problem section — Image → hidden metadata → sensitive info
   ------------------------------------------------------------------------ */
.metadata-diagram {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: clamp(1.25rem, 3vw, 2.25rem);
}
.diagram-frame {
  aspect-ratio: 4 / 3;
  border-radius: var(--radius-md);
  background:
    linear-gradient(135deg, #EFEAE3 0%, #E4DCCF 55%, #D8CFC0 100%);
  position: relative;
  overflow: hidden;
  border: 1px solid var(--border);
}
.diagram-frame::before {
  content: "";
  position: absolute; inset: 12%;
  border-radius: var(--radius-sm);
  background: linear-gradient(160deg, #B9CBD3 0%, #93A9B4 45%, #6E8892 100%);
  opacity: 0.85;
}
.diagram-frame .diagram-sun {
  position: absolute; top: 16%; right: 18%;
  width: 14%; aspect-ratio: 1;
  border-radius: 50%;
  background: #F4E2A8;
}
.diagram-tag {
  display: flex; align-items: center; justify-content: space-between;
  gap: 0.75rem;
  padding: 0.65rem 0.9rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
}
.diagram-tag .k { color: var(--ink-muted); font-family: var(--font-mono); }
.diagram-tag .v { font-family: var(--font-mono); font-weight: 600; color: var(--ink); }
.diagram-arrow { color: var(--ink-faint); font-size: 1.25rem; line-height: 1; }

/* ---------------------------------------------------------------------------
   Process steps (01 / 02 / 03)
   ------------------------------------------------------------------------ */
.process-step { position: relative; padding-top: 0.25rem; }
.process-index {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent-ink);
  letter-spacing: 0.05em;
  display: block;
  margin-bottom: 0.5rem;
}
.process-step h3 { font-size: 1.1rem; margin-bottom: 0.35rem; }
.process-step p { color: var(--ink-muted); font-size: 0.94rem; margin: 0; }
.process-rule { border-top: 1px solid var(--border); padding-top: 1.5rem; }

/* ---------------------------------------------------------------------------
   Trust / factual strip
   ------------------------------------------------------------------------ */
.fact-row { border-top: 1px solid var(--border); padding: 1.1rem 0; }
.fact-row:last-child { border-bottom: 1px solid var(--border); }
.fact-label { color: var(--ink-faint); font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.06em; }

/* ---------------------------------------------------------------------------
   Ecosystem strip (HEIC Digital / AVIF Tools)
   ------------------------------------------------------------------------ */
.ecosystem-strip {
  background: var(--ink);
  color: #E7EBEC;
}
.ecosystem-strip a { color: #fff; text-decoration: underline; text-underline-offset: 3px; text-decoration-color: rgba(255,255,255,0.35); }
.ecosystem-strip a:hover { text-decoration-color: #fff; }
.ecosystem-node {
  border: 1px solid rgba(255,255,255,0.16);
  border-radius: var(--radius-md);
  padding: 1rem 1.15rem;
}
.ecosystem-node.is-current { border-color: var(--accent); background: rgba(14,107,106,0.25); }

/* ---------------------------------------------------------------------------
   About page — visual storytelling
   ------------------------------------------------------------------------ */
.about-hero { background: var(--surface); border-bottom: 1px solid var(--border); }
.timeline-rail { position: relative; padding-left: 1.75rem; }
.timeline-rail::before {
  content: "";
  position: absolute; left: 0.28rem; top: 0.4rem; bottom: 0.4rem;
  width: 1px; background: var(--border-strong);
}
.timeline-item { position: relative; padding-bottom: 2rem; }
.timeline-item:last-child { padding-bottom: 0; }
.timeline-item::before {
  content: "";
  position: absolute; left: -1.75rem; top: 0.3rem;
  width: 0.55rem; height: 0.55rem; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-soft);
}
.timeline-item h3 { font-size: 1.05rem; margin-bottom: 0.35rem; }
.timeline-item p { color: var(--ink-muted); margin-bottom: 0; }

.pull-statement {
  font-size: clamp(1.3rem, 2.4vw, 1.9rem);
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.35;
  color: var(--ink);
}

.flow-chip {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.5rem 1rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--ink-muted);
  background: var(--surface);
}
.flow-chip.is-active { color: var(--accent-ink); border-color: var(--accent-soft-strong); background: var(--accent-soft); }
.flow-sep { color: var(--ink-faint); }

.people-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  background: var(--surface);
}
.people-avatar {
  width: 2.75rem; height: 2.75rem; border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent-ink);
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 1.05rem;
}

/* ---------------------------------------------------------------------------
   Footer
   ------------------------------------------------------------------------ */
.site-footer { background: var(--surface); }
.site-footer a { color: var(--ink-muted); }
.site-footer a:hover { color: var(--accent-ink); text-decoration: underline; }
.footer-heading { font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--ink-faint); font-weight: 600; }

/* ---------------------------------------------------------------------------
   Viewer / metadata tool — light reskin only (functionality unchanged)
   ------------------------------------------------------------------------ */
.bg-light-subtle { background-color: var(--accent-soft) !important; }

.privacy-bar { height: .55rem; border-radius: 999px; background: var(--border); overflow: hidden; }
.privacy-bar-fill { height: 100%; border-radius: 999px; }
.privacy-level-low { background: var(--ink-faint); }
.privacy-level-medium { background: var(--warning); }
.privacy-level-high { background: var(--error); }
.privacy-level-none { background: var(--success); }

.table-responsive table td.text-break { word-break: break-word; }
.table > :not(caption) > * > * { color: var(--ink); }
.table-striped > tbody > tr:nth-of-type(odd) > * { background-color: var(--bg); }

#single-upload-form.drag-over { outline: 2px dashed var(--accent); outline-offset: 4px; }

.batch-result-item:last-child { border-bottom: none !important; }

/* ---------------------------------------------------------------------------
   Utility
   ------------------------------------------------------------------------ */
.section-kicker {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--accent-ink);
}
.max-measure { max-width: 62ch; }

@media (max-width: 767.98px) {
  .hero h1 { max-width: none; }
}