:root {
    --bg: #f5f1ea;
    --fg: #2a2418;
    --muted: #837a68;
    --accent: #b8860b;
    --accent-dark: #8a6308;
    --warn: #c0392b;
    --ok: #2c8a4b;
    --border: #d4cab4;
    --card: #fffaf0;
}
* { box-sizing: border-box; }
html, body { margin: 0; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; background: var(--bg); color: var(--fg); }
.topbar {
    display: flex; align-items: center; gap: 20px;
    padding: 12px 24px; background: var(--card);
    border-bottom: 1px solid var(--border);
    position: sticky; top: 0; z-index: 50;
}
.brand { font-size: 20px; font-weight: 600; }
.topbar nav { display: flex; gap: 4px; }
.tab {
    background: transparent; border: 1px solid transparent;
    padding: 8px 14px; cursor: pointer; border-radius: 6px;
    color: var(--muted); font-size: 14px;
}
.tab.active { background: var(--bg); border-color: var(--border); color: var(--fg); }
.counters { margin-left: auto; font-size: 13px; color: var(--muted); }
.counters b { color: var(--fg); }

main { max-width: 1400px; margin: 0 auto; padding: 24px; }
.tab-panel { display: none; }
.tab-panel.active { display: block; }

.dropzone {
    border: 2px dashed var(--border);
    border-radius: 10px; padding: 32px; text-align: center; background: var(--card);
    cursor: pointer; transition: border-color .15s, background .15s;
}
.dropzone.drag { border-color: var(--accent); background: #fff3da; }
.dropzone p { margin: 0 0 8px; }
.dz-meta { font-size: 13px; color: var(--muted); }

.controls {
    display: flex; gap: 12px; align-items: center; margin: 16px 0 20px;
}
button {
    background: var(--accent); color: #fff; border: 0; padding: 10px 18px;
    border-radius: 6px; cursor: pointer; font-size: 14px; font-weight: 500;
}
button:hover:not(:disabled) { background: var(--accent-dark); }
button:disabled { background: #c9bfae; cursor: not-allowed; }
button.ghost { background: transparent; color: var(--fg); border: 1px solid var(--border); }
.status { color: var(--muted); font-size: 13px; }

.coin-grid {
    display: grid; grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
    gap: 16px;
}
.coin-card {
    background: var(--card); border: 1px solid var(--border); border-radius: 8px;
    padding: 12px; position: relative; display: flex; flex-direction: column; gap: 8px;
}
.coin-card.nierozpoznana { border-color: var(--warn); background: #fff0ee; }
.coin-card.ok .warn-icon { display: none; }
.coin-card.pending .warn-icon { display: none; }
.coin-card .warn-icon {
    position: absolute; top: 8px; right: 8px; font-size: 18px; cursor: help;
}

.slots { display: flex; gap: 8px; }
.slot {
    flex: 1; aspect-ratio: 1; border: 2px dashed var(--border); border-radius: 6px;
    background: #fff; display: flex; align-items: center; justify-content: center;
    position: relative; overflow: hidden;
}
.slot.has-image { border-style: solid; }
.slot.drop-over { border-color: var(--accent); background: #fff3da; }
.slot img { width: 100%; height: 100%; object-fit: cover; }
.slot-label {
    position: absolute; top: 4px; left: 4px; font-size: 10px; text-transform: uppercase;
    background: rgba(255,255,255,0.85); padding: 2px 6px; border-radius: 3px; color: var(--muted);
}

.coin-title {
    border: 1px solid var(--border); padding: 6px 8px; border-radius: 4px;
    font-size: 15px; font-weight: 500; background: #fff;
}
.meta {
    display: flex; justify-content: space-between; font-size: 12px; color: var(--muted);
}
.numista-link { color: var(--accent-dark); text-decoration: none; }
.numista-link:hover { text-decoration: underline; }
.coin-status.ok { color: var(--ok); }
.coin-status.nierozpoznana { color: var(--warn); }

.coin-desc {
    border: 1px solid var(--border); padding: 8px; border-radius: 4px;
    font-family: ui-monospace, "SF Mono", Consolas, monospace; font-size: 13px;
    background: #fff; resize: vertical; min-height: 110px;
}

.settings-form { max-width: 700px; }
.settings-form label {
    display: block; margin: 10px 0; font-size: 13px; color: var(--muted);
}
.settings-form label.check {
    display: flex; align-items: center; gap: 8px; color: var(--fg);
}
.settings-form input, .settings-form select {
    display: block; width: 100%; padding: 8px 10px; border: 1px solid var(--border);
    border-radius: 4px; font-size: 14px; margin-top: 4px; background: #fff; color: var(--fg);
}
.settings-form input[type=checkbox] { width: auto; margin-top: 0; }
.settings-form fieldset {
    border: 1px solid var(--border); border-radius: 6px; padding: 12px 16px; margin: 20px 0;
    background: var(--card);
}
.settings-form fieldset legend { padding: 0 6px; font-weight: 600; }
.settings-form small { color: var(--muted); margin-left: 6px; }
.settings-form .hint { display: block; font-size: 12px; color: var(--muted); margin-top: 4px; }
.settings-form .hint.warn { color: var(--warn); }
.settings-form .actions { display: flex; gap: 12px; align-items: center; }
.test-result { margin-top: 8px; font-size: 13px; min-height: 18px; }
.test-result.ok { color: var(--ok); }
.test-result.err { color: var(--warn); }

/* Progress bars */
.progress-bar {
    position: relative; height: 22px; border-radius: 6px;
    background: #fff; border: 1px solid var(--border);
    margin: 8px 0; overflow: hidden;
    opacity: 0; max-height: 0; padding: 0; border-width: 0;
    transition: opacity .2s, max-height .2s;
}
.progress-bar.active {
    opacity: 1; max-height: 30px; border-width: 1px;
}
.progress-bar .pb-fill {
    position: absolute; left: 0; top: 0; bottom: 0;
    width: 0%; background: linear-gradient(90deg, var(--accent) 0%, var(--accent-dark) 100%);
    transition: width .25s ease-out;
}
.progress-bar .pb-label {
    position: relative; z-index: 1;
    height: 100%; display: flex; align-items: center; justify-content: center;
    font-size: 12px; font-weight: 500; color: #fff; mix-blend-mode: difference;
}

.coin-error {
    font-size: 11px; color: var(--warn); margin-top: 4px;
}

/* Thumbnail strip (after upload, before recognize) */
.thumb-strip {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
    gap: 10px;
    margin: 12px 0 8px;
    padding: 10px;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 8px;
}
.thumb-item {
    position: relative;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 6px;
    overflow: hidden;
    display: flex; flex-direction: column;
}
.thumb-item img {
    width: 100%; aspect-ratio: 1; object-fit: cover; display: block;
}
.thumb-item .thumb-name {
    font-size: 11px; color: var(--muted);
    padding: 4px 6px;
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
    border-top: 1px solid var(--border);
}
.thumb-item .thumb-remove {
    position: absolute; top: 4px; right: 4px;
    width: 22px; height: 22px; border-radius: 50%;
    background: rgba(0,0,0,0.55); color: #fff;
    display: flex; align-items: center; justify-content: center;
    font-size: 14px; line-height: 1; cursor: pointer;
    border: 0; padding: 0;
}
.thumb-item .thumb-remove:hover { background: var(--warn); }

/* Login screen */
.login-body { display: flex; align-items: center; justify-content: center; min-height: 100vh; background: var(--bg); }
.login-box {
    background: var(--card); border: 1px solid var(--border); border-radius: 10px;
    padding: 32px 36px; width: 100%; max-width: 360px;
}
.login-box h1 { margin: 0 0 8px; font-size: 28px; }
.login-box .hint { color: var(--muted); font-size: 13px; margin: 0 0 20px; }
.login-box form { display: flex; flex-direction: column; gap: 14px; }
.login-box label { display: flex; flex-direction: column; font-size: 13px; color: var(--muted); }
.login-box input {
    padding: 10px 12px; border: 1px solid var(--border); border-radius: 6px;
    font-size: 15px; background: #fff; color: var(--fg); margin-top: 4px;
}
.login-box button { padding: 10px 18px; font-size: 14px; }
.login-error {
    background: #fff0ee; border: 1px solid var(--warn); color: var(--warn);
    padding: 8px 12px; border-radius: 6px; font-size: 13px; margin-bottom: 14px;
}
.logout-link {
    margin-left: 14px; color: var(--muted); text-decoration: none; font-size: 13px;
    border-left: 1px solid var(--border); padding-left: 14px;
}
.logout-link:hover { color: var(--fg); text-decoration: underline; }