/* ── File Fingerprint Comparator ── */

.pdf-tool-page:has(#fcmp-wrap) { max-width: min(96vw, 1440px); width: auto; }
body:has(#fcmp-wrap) .pdf-header-tool .pdf-header-inner { max-width: min(96vw, 1440px); }
@media (max-width: 700px) {
    .pdf-tool-page:has(#fcmp-wrap),
    body:has(#fcmp-wrap) .pdf-header-tool .pdf-header-inner { max-width: 100%; }
}

/* ── About ───────────────────────────────────────────────────────────────── */
.fcmp-about {
    margin-bottom: 2rem; padding: 1.4rem 1.6rem;
    border-radius: 12px; background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.07);
}
.fcmp-about-header { display: flex; align-items: flex-start; gap: 1rem; }
.fcmp-about-icon  { font-size: 2.2rem; flex-shrink: 0; margin-top: .1rem; }
.fcmp-about-title { font-size: 1.15rem; font-weight: 700; color: var(--pdf-text); margin-bottom: .35rem; }
.fcmp-about-sub   { font-size: .88rem; color: #c4c4d8; line-height: 1.55; }
.fcmp-about-sub strong { color: var(--pdf-amber, #ff8c00); }

/* ── Two-drop layout ─────────────────────────────────────────────────────── */
.fcmp-uploads {
    display: grid; grid-template-columns: 1fr 1fr; gap: 1.2rem;
    margin-bottom: 1.2rem;
}
@media (max-width: 640px) { .fcmp-uploads { grid-template-columns: 1fr; } }

.fcmp-slot { display: flex; flex-direction: column; gap: .6rem; }
.fcmp-slot-label {
    font-size: .72rem; font-weight: 700; letter-spacing: .1em;
    text-transform: uppercase; color: var(--pdf-amber, #ff8c00);
}
.fcmp-drop {
    position: relative; border: 2px dashed rgba(255,255,255,0.15);
    border-radius: 12px; padding: 1.8rem 1.2rem;
    background: rgba(255,255,255,0.02); text-align: center;
    cursor: pointer; transition: border-color .2s, background .2s;
    min-height: 130px; display: flex; flex-direction: column;
    align-items: center; justify-content: center; gap: .5rem;
}
.fcmp-drop:hover, .fcmp-drop.fcmp-hover {
    border-color: rgba(255,140,0,.45); background: rgba(255,140,0,.04);
}
.fcmp-drop.fcmp-ready {
    border-color: rgba(0,230,118,.4); background: rgba(0,230,118,.03);
}
.fcmp-drop-icon { font-size: 2rem; }
.fcmp-drop-text { font-size: .85rem; color: var(--pdf-text); font-weight: 600; }
.fcmp-drop-hint { font-size: .72rem; color: var(--pdf-text-dim); }
.fcmp-file-input-hidden { position: absolute; inset: 0; opacity: 0; cursor: pointer; }

.fcmp-file-info {
    display: flex; align-items: center; gap: .7rem;
    padding: .55rem .75rem; border-radius: 8px;
    background: rgba(0,230,118,.06); border: 1px solid rgba(0,230,118,.2);
}
.fcmp-file-name { font-size: .82rem; font-weight: 600; color: #00e676; word-break: break-all; }
.fcmp-file-size { font-size: .7rem; color: var(--pdf-text-dim); }
.fcmp-file-clear {
    margin-left: auto; background: none; border: none; color: var(--pdf-text-dim);
    cursor: pointer; font-size: 1rem; line-height: 1; padding: 2px 4px;
    border-radius: 4px; transition: color .15s;
}
.fcmp-file-clear:hover { color: #ff4444; }

/* ── Compare button ─────────────────────────────────────────────────────── */
.fcmp-submit-wrap { text-align: center; margin-bottom: 1.2rem; }
.fcmp-btn-compare {
    padding: .75rem 2.4rem; font-size: .95rem; font-weight: 700;
    border-radius: 10px; border: none; cursor: pointer;
    background: linear-gradient(135deg, #ff8c00, #ff6000);
    color: #fff; transition: opacity .2s, transform .15s;
}
.fcmp-btn-compare:hover { opacity: .88; transform: translateY(-1px); }
.fcmp-btn-compare:disabled { opacity: .4; cursor: not-allowed; transform: none; }

/* ── Progress ───────────────────────────────────────────────────────────── */
.fcmp-progress-wrap { margin-bottom: 1.5rem; }
.fcmp-progress-grid {
    display: grid; grid-template-columns: 1fr 1fr; gap: 1rem;
    margin-bottom: .8rem;
}
@media (max-width: 640px) { .fcmp-progress-grid { grid-template-columns: 1fr; } }

.fcmp-prog-slot { display: flex; flex-direction: column; gap: .4rem; }
.fcmp-prog-label { font-size: .72rem; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; color: var(--pdf-text-dim); }
.fcmp-prog-bar-track { height: 5px; border-radius: 3px; background: rgba(255,255,255,.08); overflow: hidden; }
.fcmp-prog-bar { height: 100%; border-radius: 3px; background: linear-gradient(90deg, #ff8c00, #ffbf00); transition: width .3s; }
.fcmp-prog-status { font-size: .75rem; color: var(--pdf-text-dim); }

/* ── Results layout ─────────────────────────────────────────────────────── */
.fcmp-results { margin-top: .5rem; }

/* Similarity gauge */
.fcmp-gauge-row {
    display: flex; align-items: center; justify-content: center;
    gap: 2rem; flex-wrap: wrap; padding: 1.8rem;
    border-radius: 14px; background: rgba(255,255,255,.025);
    border: 1px solid rgba(255,255,255,.07); margin-bottom: 1.4rem;
}
.fcmp-gauge-circle {
    position: relative; width: 130px; height: 130px; flex-shrink: 0;
}
.fcmp-gauge-svg { width: 130px; height: 130px; transform: rotate(-90deg); }
.fcmp-gauge-track { fill: none; stroke: rgba(255,255,255,.08); stroke-width: 10; }
.fcmp-gauge-arc   { fill: none; stroke-width: 10; stroke-linecap: round;
    transition: stroke-dashoffset .8s cubic-bezier(.4,0,.2,1); }
.fcmp-gauge-center {
    position: absolute; inset: 0; display: flex; flex-direction: column;
    align-items: center; justify-content: center;
}
.fcmp-gauge-pct  { font-size: 1.8rem; font-weight: 900; line-height: 1; }
.fcmp-gauge-unit { font-size: .65rem; color: var(--pdf-text-dim); text-transform: uppercase; letter-spacing: .1em; }

.fcmp-gauge-detail { text-align: center; }
.fcmp-verdict-badge {
    display: inline-block; padding: .35rem 1rem; border-radius: 20px;
    font-size: .85rem; font-weight: 800; letter-spacing: .06em;
    text-transform: uppercase; margin-bottom: .6rem;
}
.fcmp-gauge-summary { font-size: .8rem; color: var(--pdf-text-dim); max-width: 320px; }
.fcmp-score-breakdown {
    display: flex; gap: 1rem; flex-wrap: wrap; justify-content: center;
    margin-top: .6rem;
}
.fcmp-score-item { text-align: center; }
.fcmp-score-val { font-size: 1rem; font-weight: 700; }
.fcmp-score-lbl { font-size: .65rem; color: var(--pdf-text-dim); text-transform: uppercase; letter-spacing: .06em; }

/* Side-by-side file summary */
.fcmp-files-row {
    display: grid; grid-template-columns: 1fr 1fr; gap: 1rem;
    margin-bottom: 1.4rem;
}
@media (max-width: 640px) { .fcmp-files-row { grid-template-columns: 1fr; } }

.fcmp-file-card {
    padding: 1rem 1.2rem; border-radius: 10px;
    background: rgba(255,255,255,.025); border: 1px solid rgba(255,255,255,.07);
}
.fcmp-file-card-label {
    font-size: .65rem; font-weight: 700; text-transform: uppercase;
    letter-spacing: .1em; color: var(--pdf-amber, #ff8c00); margin-bottom: .5rem;
}
.fcmp-file-card-name {
    font-size: .9rem; font-weight: 700; word-break: break-all;
    margin-bottom: .6rem; color: var(--pdf-text);
}
.fcmp-risk-pill {
    display: inline-block; padding: .2rem .65rem; border-radius: 12px;
    font-size: .72rem; font-weight: 700; text-transform: uppercase;
    margin-bottom: .6rem;
}
.fcmp-meta-row { display: flex; justify-content: space-between; font-size: .75rem;
    padding: 4px 0; border-bottom: 1px solid rgba(255,255,255,.04);
    color: var(--pdf-text-dim);
}
.fcmp-meta-row span:last-child { color: var(--pdf-text); font-weight: 600; }

/* ── Diff section ─────────────────────────────────────────────────────── */
.fcmp-diff-section { margin-bottom: 1.4rem; }

/* All-match banner */
.fcmp-no-diffs {
    display: flex; align-items: center; gap: 1rem;
    padding: 1.2rem 1.4rem; border-radius: 10px;
    background: rgba(0,230,118,.06); border: 1px solid rgba(0,230,118,.2);
    margin-bottom: 1rem;
}
.fcmp-no-diffs-icon { font-size: 1.6rem; color: #00e676; flex-shrink: 0; }
.fcmp-no-diffs-title { font-size: .95rem; font-weight: 700; color: #00e676; margin-bottom: .2rem; }
.fcmp-no-diffs-sub   { font-size: .8rem; color: var(--pdf-text-dim); }

/* Differences header */
.fcmp-diff-header {
    display: flex; align-items: baseline; gap: .8rem;
    margin-bottom: .7rem; padding: .5rem 0;
    border-bottom: 1px solid rgba(255,140,0,.2);
}
.fcmp-diff-count {
    font-size: 1.05rem; font-weight: 800; color: #ff8c00;
}
.fcmp-diff-header-sub {
    font-size: .75rem; color: var(--pdf-text-dim);
}

/* Table base */
.fcmp-diff-table { width: 100%; border-collapse: collapse; margin-bottom: .6rem; }
.fcmp-diff-table th {
    font-size: .65rem; font-weight: 700; text-transform: uppercase;
    letter-spacing: .07em; color: var(--pdf-text-dim);
    padding: 5px 10px; text-align: left;
    border-bottom: 1px solid rgba(255,255,255,.08);
}
.fcmp-diff-table td {
    font-size: .78rem; padding: 8px 10px;
    border-bottom: 1px solid rgba(255,255,255,.04);
    vertical-align: middle;
}

/* Group row inside table */
.fcmp-group-row td {
    font-size: .63rem; font-weight: 700; text-transform: uppercase;
    letter-spacing: .1em; color: rgba(255,140,0,.7);
    padding: 8px 10px 4px;
    background: rgba(255,140,0,.04);
    border-bottom: none;
}
.fcmp-group-row-dim td { color: rgba(255,255,255,.3); background: transparent; }

/* Diff rows — prominent */
.fcmp-diffs-only .fcmp-row-diff td {
    color: var(--pdf-text);
}
.fcmp-diffs-only .fcmp-row-diff { border-left: 3px solid #ff8c00; }
.fcmp-diffs-only .fcmp-row-diff .fcmp-diff-val-a { color: #4fc3f7; font-family: monospace; font-size: .75rem; font-weight: 600; }
.fcmp-diffs-only .fcmp-row-diff .fcmp-diff-val-b { color: #ffb045; font-family: monospace; font-size: .75rem; font-weight: 600; }
.fcmp-diffs-only .fcmp-row-diff .fcmp-diff-key   { color: var(--pdf-text); font-weight: 600; }

/* Match collapse */
.fcmp-matches-details {
    margin-top: .8rem;
    border-radius: 8px;
    border: 1px solid rgba(255,255,255,.07);
    background: rgba(255,255,255,.01);
    overflow: hidden;
}
.fcmp-matches-summary {
    list-style: none; cursor: pointer;
    padding: .7rem 1rem;
    font-size: .78rem; color: var(--pdf-text-dim);
    display: flex; align-items: center; gap: .5rem;
    user-select: none;
}
.fcmp-matches-summary::-webkit-details-marker { display: none; }
.fcmp-matches-summary::before {
    content: '▶'; font-size: .6rem; color: rgba(255,255,255,.3);
    transition: transform .2s;
}
.fcmp-matches-details[open] .fcmp-matches-summary::before { transform: rotate(90deg); }
.fcmp-matches-summary:hover { color: var(--pdf-text); }
.fcmp-matches-count { color: rgba(0,230,118,.7); font-weight: 600; }

/* Matching rows — dim */
.fcmp-table-matches .fcmp-row-match td {
    color: rgba(255,255,255,.35);
    font-size: .75rem;
}
.fcmp-table-matches .fcmp-row-match .fcmp-diff-val-a,
.fcmp-table-matches .fcmp-row-match .fcmp-diff-val-b {
    font-family: monospace; font-size: .73rem;
    color: rgba(255,255,255,.25);
}
.fcmp-table-matches .fcmp-row-match .fcmp-diff-key { color: rgba(255,255,255,.35); }
.fcmp-table-matches { padding: 0 .5rem .5rem; }

/* ── Error / empty ───────────────────────────────────────────────────────── */
.fcmp-error {
    display: flex; align-items: center; gap: .75rem;
    padding: .9rem 1.1rem; border-radius: 8px;
    background: rgba(255,40,40,.07); border: 1px solid rgba(255,40,40,.2);
    font-size: .85rem; color: #ff6b6b; margin-bottom: 1rem;
}

/* ── Reset link ──────────────────────────────────────────────────────────── */
.fcmp-reset-row { text-align: center; margin-top: 1.4rem; }
.fcmp-reset-btn {
    background: none; border: 1px solid rgba(255,255,255,.15); color: var(--pdf-text-dim);
    padding: .55rem 1.4rem; border-radius: 8px; cursor: pointer; font-size: .82rem;
    transition: border-color .15s, color .15s;
}
.fcmp-reset-btn:hover { border-color: rgba(255,255,255,.3); color: var(--pdf-text); }

.fcmp-file-slot-icon { font-size: 1.1rem; }
.fcmp-prog-bar       { width: 0%; }
.fcmp-progress-hint  { font-size: .75rem; color: var(--pdf-text-dim); text-align: center; }