/* ---------------------------------------------------------------
   PrintHub — návrhový systém
   Mobile-first. Nejčastější scénář je „stojím u tiskárny s telefonem“,
   takže velké dotykové cíle a čitelnost na malém displeji mají přednost.
   --------------------------------------------------------------- */

:root {
    --bg: #f6f7f9;
    --surface: #ffffff;
    --surface-2: #f1f3f6;
    --border: #e2e5ea;
    --text: #16181d;
    --text-dim: #666e7d;
    --accent: #2f6df6;
    --accent-soft: #e8f0ff;
    --success: #15803d;
    --success-soft: #dcfce7;
    --warning: #a16207;
    --warning-soft: #fef3c7;
    --danger: #b91c1c;
    --danger-soft: #fee2e2;
    --info: #6d28d9;
    --info-soft: #ede9fe;

    --radius: 14px;
    --radius-sm: 9px;
    --shadow: 0 1px 2px rgba(15, 23, 42, .06), 0 6px 20px rgba(15, 23, 42, .06);
    --shadow-sm: 0 1px 2px rgba(15, 23, 42, .07);
    --tap: 46px;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #0f1115;
        --surface: #171a21;
        --surface-2: #1f232c;
        --border: #2a2f3a;
        --text: #e9ecf1;
        --text-dim: #99a1b0;
        --accent: #6c9bff;
        --accent-soft: #1c2740;
        --success: #4ade80;
        --success-soft: #15291d;
        --warning: #fbbf24;
        --warning-soft: #2c2513;
        --danger: #f87171;
        --danger-soft: #2d1919;
        --info: #c4b5fd;
        --info-soft: #241d3a;
        --shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 8px 24px rgba(0, 0, 0, .3);
        --shadow-sm: 0 1px 2px rgba(0, 0, 0, .35);
    }
}

* { box-sizing: border-box; }

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font: 16px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    -webkit-font-smoothing: antialiased;
    padding-bottom: env(safe-area-inset-bottom);
}

h1, h2, h3 { line-height: 1.25; margin: 0 0 .5em; letter-spacing: -.01em; }
h1 { font-size: 1.6rem; }
h2 { font-size: 1.2rem; }
h3 { font-size: 1rem; }
p { margin: 0 0 1em; }
a { color: var(--accent); }

/* ---------- Layout ---------- */

.page {
    max-width: 900px;
    margin: 0 auto;
    padding: 20px 16px 64px;
}

.topbar {
    position: sticky;
    top: 0;
    z-index: 20;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 10px 16px;
    padding-top: calc(10px + env(safe-area-inset-top));
    background: color-mix(in srgb, var(--surface) 88%, transparent);
    backdrop-filter: saturate(180%) blur(12px);
    border-bottom: 1px solid var(--border);
}

.brand {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 640;
    color: var(--text);
    text-decoration: none;
}
.brand-icon { font-size: 1.25rem; }

.topnav { display: flex; align-items: center; gap: 4px; }

.navlink {
    padding: 9px 12px;
    border-radius: var(--radius-sm);
    color: var(--text-dim);
    text-decoration: none;
    font-size: .93rem;
    font-weight: 520;
}
.navlink:hover { background: var(--surface-2); color: var(--text); }
.navlink.is-active { color: var(--accent); background: var(--accent-soft); }

/* ---------- Uživatelské menu ---------- */

.usermenu { position: relative; }
.usermenu summary { list-style: none; cursor: pointer; }
.usermenu summary::-webkit-details-marker { display: none; }

.avatar {
    display: grid;
    place-items: center;
    width: 34px; height: 34px;
    border-radius: 50%;
    background: var(--accent);
    color: #fff;
    font-weight: 640;
    font-size: .85rem;
}

.usermenu-panel {
    position: absolute;
    right: 0; top: calc(100% + 8px);
    min-width: 210px;
    padding: 6px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}
.usermenu-head { padding: 10px 12px 12px; border-bottom: 1px solid var(--border); margin-bottom: 4px; }
.usermenu-head small { display: block; color: var(--text-dim); font-size: .8rem; }
.usermenu-item {
    display: block;
    padding: 10px 12px;
    border-radius: var(--radius-sm);
    color: var(--text);
    text-decoration: none;
    font-size: .92rem;
}
.usermenu-item:hover { background: var(--surface-2); }

/* ---------- Karty ---------- */

.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 18px;
    box-shadow: var(--shadow-sm);
}
.card + .card { margin-top: 14px; }
.card-title { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 14px; }
.card-title h2 { margin: 0; }

/* ---------- Volba režimu (úvodní obrazovka) ---------- */

.mode-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 220px), 1fr));
    gap: 14px;
    margin-bottom: 24px;
}

.mode-card {
    display: block;
    padding: 26px 22px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    text-decoration: none;
    color: var(--text);
    box-shadow: var(--shadow-sm);
    transition: transform .12s ease, box-shadow .12s ease, border-color .12s ease;
}
.mode-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
    border-color: color-mix(in srgb, var(--accent) 45%, var(--border));
}
.mode-card:active { transform: translateY(0); }
.mode-icon { font-size: 2.2rem; line-height: 1; }
.mode-name { display: block; margin-top: 12px; font-size: 1.12rem; font-weight: 640; }
.mode-desc { display: block; margin-top: 3px; color: var(--text-dim); font-size: .9rem; }

/* ---------- Stav tiskárny ---------- */

.status-bar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px 18px;
    padding: 13px 16px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 16px;
    font-size: .9rem;
}

.status-dot {
    width: 9px; height: 9px;
    border-radius: 50%;
    background: var(--success);
    flex: none;
}
.status-dot--off { background: var(--danger); }
.status-dot--sim { background: var(--info); }

.ink { display: flex; align-items: center; gap: 7px; }
.ink-meter {
    width: 54px; height: 7px;
    background: var(--surface-2);
    border-radius: 99px;
    overflow: hidden;
}
.ink-fill { height: 100%; background: var(--success); border-radius: 99px; }
.ink-fill--low { background: var(--warning); }
.ink-fill--critical { background: var(--danger); }

/* ---------- Odznaky ---------- */

.badge {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 3px 9px;
    border-radius: 99px;
    font-size: .76rem;
    font-weight: 600;
    letter-spacing: .01em;
}
.badge--green  { background: var(--success-soft); color: var(--success); }
.badge--red    { background: var(--danger-soft);  color: var(--danger); }
.badge--blue   { background: var(--accent-soft);  color: var(--accent); }
.badge--purple { background: var(--info-soft);    color: var(--info); }
.badge--gray   { background: var(--surface-2);    color: var(--text-dim); }

/* ---------- Hlášky ---------- */

.alert {
    padding: 12px 15px;
    border-radius: var(--radius-sm);
    margin-bottom: 14px;
    font-size: .93rem;
    border: 1px solid transparent;
}
.alert--success { background: var(--success-soft); color: var(--success); border-color: color-mix(in srgb, var(--success) 25%, transparent); }
.alert--error   { background: var(--danger-soft);  color: var(--danger);  border-color: color-mix(in srgb, var(--danger) 25%, transparent); }
.alert--warning { background: var(--warning-soft); color: var(--warning); border-color: color-mix(in srgb, var(--warning) 25%, transparent); }
.alert--info    { background: var(--info-soft);    color: var(--info);    border-color: color-mix(in srgb, var(--info) 25%, transparent); }

/* ---------- Tlačítka ---------- */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: var(--tap);
    padding: 11px 20px;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    background: var(--accent);
    color: #fff;
    font-size: .96rem;
    font-weight: 600;
    font-family: inherit;
    text-decoration: none;
    cursor: pointer;
    transition: filter .12s ease;
}
.btn:hover { filter: brightness(1.07); }
.btn:disabled { opacity: .5; cursor: not-allowed; }

.btn--ghost { background: transparent; color: var(--text); border-color: var(--border); }
.btn--ghost:hover { background: var(--surface-2); filter: none; }
.btn--danger { background: transparent; color: var(--danger); border-color: color-mix(in srgb, var(--danger) 35%, transparent); }
.btn--danger:hover { background: var(--danger-soft); filter: none; }
.btn--block { width: 100%; }
.btn--lg { min-height: 54px; font-size: 1.03rem; }
.btn--sm { min-height: 36px; padding: 6px 12px; font-size: .85rem; }

/* ---------- Formuláře ---------- */

.field { margin-bottom: 15px; }
.field label { display: block; margin-bottom: 6px; font-size: .87rem; font-weight: 560; color: var(--text-dim); }

.input, select.input {
    width: 100%;
    min-height: var(--tap);
    padding: 11px 13px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text);
    font-size: 16px; /* pod 16px iOS zoomuje při fokusu */
    font-family: inherit;
}
.input:focus, select.input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-soft);
}

.check { display: flex; align-items: center; gap: 9px; min-height: var(--tap); cursor: pointer; }
.check input { width: 19px; height: 19px; accent-color: var(--accent); }
.check span { font-size: .93rem; }

/* ---------- Upload ---------- */

.dropzone {
    display: grid;
    place-items: center;
    gap: 6px;
    padding: 34px 20px;
    border: 2px dashed var(--border);
    border-radius: var(--radius);
    background: var(--surface);
    text-align: center;
    cursor: pointer;
    transition: border-color .15s ease, background .15s ease;
}
.dropzone:hover, .dropzone.is-over {
    border-color: var(--accent);
    background: var(--accent-soft);
}
.dropzone-icon { font-size: 2rem; }
.dropzone-hint { color: var(--text-dim); font-size: .87rem; }
.dropzone input[type=file] { display: none; }

/* ---------- Seznam položek ---------- */

.item {
    display: grid;
    grid-template-columns: 92px 1fr;
    gap: 14px;
    padding: 14px 0;
    border-top: 1px solid var(--border);
}
.item:first-child { border-top: 0; }

.item-thumb {
    width: 92px; height: 92px;
    border-radius: var(--radius-sm);
    background: var(--surface-2);
    object-fit: cover;
    display: grid;
    place-items: center;
    font-size: 1.8rem;
    overflow: hidden;
}
.item-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }

.item-name { font-weight: 580; font-size: .95rem; word-break: break-word; }
.item-meta { color: var(--text-dim); font-size: .82rem; margin-top: 2px; }
.item-controls { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px; }
.item-controls select, .item-controls input[type=number] {
    min-height: 38px;
    padding: 6px 10px;
    font-size: .87rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text);
    font-family: inherit;
}

/* ---------- Historie ---------- */

.job-row {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 0;
    border-top: 1px solid var(--border);
    text-decoration: none;
    color: var(--text);
}
.job-row:first-of-type { border-top: 0; }
.job-row:hover .job-title { color: var(--accent); }
.job-icon {
    display: grid;
    place-items: center;
    width: 42px; height: 42px;
    border-radius: var(--radius-sm);
    background: var(--surface-2);
    font-size: 1.15rem;
    flex: none;
}
.job-body { flex: 1; min-width: 0; }
.job-title { font-weight: 580; font-size: .95rem; }
.job-sub { color: var(--text-dim); font-size: .82rem; margin-top: 1px; }

/* ---------- Náhled výtisku ---------- */

.preview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(min(100%, 200px), 1fr));
    gap: 14px;
}
.preview-sheet {
    background: var(--surface-2);
    border-radius: var(--radius-sm);
    padding: 12px;
    text-align: center;
}
.preview-sheet img {
    width: 100%;
    height: auto;
    border-radius: 4px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, .18);
    background: #fff;
}
.preview-caption { margin-top: 9px; font-size: .8rem; color: var(--text-dim); }

/* ---------- Předvolby ---------- */

.preset-row { display: flex; flex-wrap: wrap; gap: 8px; }
.preset-chip {
    display: inline-flex;
    flex-direction: column;
    align-items: flex-start;
    padding: 9px 14px;
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-family: inherit;
    color: var(--text);
    text-align: left;
}
.preset-chip:hover { border-color: var(--accent); background: var(--accent-soft); }
.preset-chip strong { font-size: .89rem; font-weight: 600; }
.preset-chip small { color: var(--text-dim); font-size: .76rem; }

/* ---------- Pomocné ---------- */

.muted { color: var(--text-dim); }
.small { font-size: .85rem; }
.row { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.row--between { justify-content: space-between; }
.stack > * + * { margin-top: 12px; }
.empty { padding: 42px 20px; text-align: center; color: var(--text-dim); }
.empty-icon { font-size: 2.4rem; display: block; margin-bottom: 10px; }
.divider { height: 1px; background: var(--border); margin: 18px 0; border: 0; }

.sticky-actions {
    position: sticky;
    bottom: 0;
    margin: 18px -16px -64px;
    padding: 14px 16px calc(14px + env(safe-area-inset-bottom));
    background: color-mix(in srgb, var(--surface) 92%, transparent);
    backdrop-filter: blur(12px);
    border-top: 1px solid var(--border);
}

/* ---------- Přihlášení ---------- */

.login-wrap {
    min-height: 100svh;
    display: grid;
    place-items: center;
    padding: 24px 16px;
}
.login-card {
    width: 100%;
    max-width: 380px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 30px 26px;
    box-shadow: var(--shadow);
}
.login-logo { text-align: center; font-size: 2.4rem; margin-bottom: 6px; }
.login-title { text-align: center; margin-bottom: 22px; }
.login-title small { display: block; color: var(--text-dim); font-size: .87rem; font-weight: 400; margin-top: 3px; }

/* ---------- Editor fotky ---------- */

.editor-canvas {
    max-height: 62vh;
    background: var(--surface-2);
    border-radius: var(--radius-sm);
    overflow: hidden;
}
.editor-canvas img {
    display: block;
    max-width: 100%;
}

.editor-tools {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}
.editor-tools .btn[data-grayscale-indicator].is-active {
    background: var(--accent-soft);
    border-color: var(--accent);
    color: var(--accent);
}

/* Cropper.js přebarvíme do palety aplikace */
.cropper-view-box { outline-color: var(--accent); }
.cropper-line, .cropper-point { background-color: var(--accent); }