:root {
    --bg: #1f0f18; --bg2: #150a10; --card: rgba(255,255,255,.06); --line: rgba(255,255,255,.17);
    --ink: #fdf2f8; --muted: #d4abc0; --accent: #f472b6; --accent-ink: #2a0716; --field: rgba(255,255,255,.08);
    --good: #4ade80; --good-bg: rgba(74,222,128,.12); --warn: #fbbf24; --warn-bg: rgba(251,191,36,.12); --bad: #fda4af; --bad-bg: rgba(251,113,133,.16);
    --thumb: rgba(0,0,0,.25);
    color-scheme: dark;
}
@media (prefers-color-scheme: light) {
    :root { --bg: #fdf4f8; --bg2: #f9e6ef; --card: #fff; --line: #f0d0df; --ink: #2a1220; --muted: #6f4a5c;
            --accent: #be185d; --accent-ink: #fff; --field: #fdf2f7; --good: #15803d; --good-bg: #ecfdf3; --warn: #a16207; --warn-bg: #fff8e6; --bad: #be123c; --bad-bg: #fff1f2;
            --thumb: #f3e3eb; color-scheme: light; }
}
:root[data-theme="light"] { --bg: #fdf4f8; --bg2: #f9e6ef; --card: #fff; --line: #f0d0df; --ink: #2a1220; --muted: #6f4a5c;
            --accent: #be185d; --accent-ink: #fff; --field: #fdf2f7; --good: #15803d; --good-bg: #ecfdf3; --warn: #a16207; --warn-bg: #fff8e6; --bad: #be123c; --bad-bg: #fff1f2;
            --thumb: #f3e3eb; color-scheme: light; }
:root[data-theme="dark"] {
    --bg: #1f0f18; --bg2: #150a10; --card: rgba(255,255,255,.06); --line: rgba(255,255,255,.17);
    --ink: #fdf2f8; --muted: #d4abc0; --accent: #f472b6; --accent-ink: #2a0716; --field: rgba(255,255,255,.08);
    --good: #4ade80; --good-bg: rgba(74,222,128,.12); --warn: #fbbf24; --warn-bg: rgba(251,191,36,.12); --bad: #fda4af; --bad-bg: rgba(251,113,133,.16);
    --thumb: rgba(0,0,0,.25);
    color-scheme: dark;
}
* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; padding: clamp(1rem,4vw,2.5rem) 1rem 4rem; display: flex; justify-content: center;
       font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; color: var(--ink);
       background: var(--bg2) linear-gradient(180deg, var(--bg), var(--bg2) 900px) no-repeat; touch-action: manipulation; }
.app { width: min(560px, 100%); min-width: 0; display: flex; flex-direction: column; }
header { text-align: center; margin-bottom: 1.1rem; }
h1 { margin: 0; font-size: 1.85rem; line-height: 1.2; letter-spacing: -.02em; }
.sub { margin: .4rem 0 0; color: var(--muted); font-size: 1rem; }
h2 { margin: 0 0 .7rem; font-size: 1.15rem; }
h3 { margin: 0 0 .4rem; font-size: 1rem; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 1.1rem; margin-bottom: .9rem; min-width: 0; }
label { display: block; margin: .9rem 0 .35rem; font-size: .9rem; font-weight: 600; color: var(--muted); }
label.first { margin-top: 0; }
input[type=text], select { width: 100%; min-width: 0; min-height: 48px; padding: .6rem .8rem; font: inherit; font-size: 1.05rem; color: var(--ink);
       background: var(--field); border: 1px solid var(--line); border-radius: 12px; }
input[aria-invalid=true] { border-color: var(--bad); }
select option { color: #111; background: #fff; }
input:focus-visible, button:focus-visible, select:focus-visible, summary:focus-visible, a:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }
::placeholder { color: var(--muted); opacity: .75; }
.hint { margin: .6rem 0 0; color: var(--muted); font-size: .88rem; }
[hidden] { display: none !important; }
.sr-only { position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }

/* buttons */
.primary, .secondary, .danger { display: flex; align-items: center; justify-content: center; width: 100%; min-height: 48px; padding: .5rem .8rem; border-radius: 12px;
       font: inherit; font-weight: 700; text-align: center; text-decoration: none; cursor: pointer; }
.primary { border: 0; background: var(--accent); color: var(--accent-ink); }
.secondary { border: 1px solid var(--line); background: var(--field); color: var(--ink); font-weight: 600; }
.danger { border: 1px solid var(--bad); background: transparent; color: var(--bad); font-weight: 600; }
.link { display: block; min-height: 44px; margin-top: .4rem; padding: 0 .1rem; border: 0; background: none; color: var(--accent); font: inherit; font-size: .95rem; font-weight: 600; text-align: left; cursor: pointer; }
.link:disabled { opacity: .6; cursor: default; }
.link.small { min-height: 40px; margin-top: .3rem; font-size: .92rem; }

/* choosing photos */
.pick { position: relative; }
.file-input { position: absolute; top: 0; left: 0; width: 1px; height: 1px; opacity: 0; overflow: hidden; }
.drop { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: .2rem; min-height: 160px; margin: 0; padding: 1.2rem;
        border: 2px dashed var(--accent); border-radius: 16px; background: var(--field); color: var(--accent); text-align: center; cursor: pointer; transition: background .15s; }
.drop b { font-size: 1.2rem; color: var(--ink); }
.drop-sub { color: var(--muted); font-weight: 500; }
.drop:hover, .drop.over { background: color-mix(in srgb, var(--accent) 14%, transparent); }
.file-input:focus-visible + .drop { outline: 3px solid var(--accent); outline-offset: 3px; }
.how { margin-top: 1rem; padding-top: .9rem; border-top: 1px solid var(--line); }
.how ol { margin: 0; padding-left: 1.3rem; color: var(--muted); }
.how li { margin: .2rem 0; }
.how b { color: var(--ink); }
.msg { margin: .5rem 0 0; color: var(--muted); font-size: .92rem; overflow-wrap: anywhere; }
.msg:empty { margin: 0; }
.msg button { min-height: 40px; margin-left: .4rem; padding: 0 .8rem; border: 1px solid var(--accent); border-radius: 10px; background: none; color: var(--accent); font: inherit; font-weight: 700; cursor: pointer; }
#pick-msg:not(:empty) { color: var(--bad); font-weight: 600; }

/* results: each photo in its own bordered box */
.results { min-width: 0; margin-bottom: .9rem; }
.results > h2 { display: flex; align-items: baseline; gap: .4rem; }
.count { color: var(--muted); font-weight: 500; font-size: 1rem; }
.empty { margin: 0; padding: 1rem; border: 1px dashed var(--line); border-radius: 14px; color: var(--muted); font-size: .95rem; }
.empty b { color: var(--ink); }
.photos { list-style: none; margin: 0; padding: 0; display: grid; gap: .9rem; }
.photo { border: 1px solid var(--line); border-left: 6px solid var(--accent); border-radius: 16px; padding: .8rem .9rem 1rem; background: var(--card); min-width: 0; }
.photo.ok { border-left-color: var(--good); }
.photo.bad { border-left-color: var(--bad); }
.p-head { display: flex; align-items: center; gap: .6rem; margin-bottom: .6rem; padding-bottom: .55rem; border-bottom: 1px solid var(--line); }
.p-name { flex: 1; min-width: 0; font-weight: 700; overflow-wrap: anywhere; }
.p-remove { flex: none; min-height: 40px; padding: 0 .9rem; border-radius: 10px; border: 1px solid var(--line); background: transparent; color: var(--ink); font: inherit; font-size: .9rem; font-weight: 600; cursor: pointer; }
.inline { display: grid; grid-template-columns: minmax(0, 1fr) 6rem; gap: .5rem; }
.money { display: flex; align-items: center; min-height: 48px; background: var(--field); border: 1px solid var(--line); border-radius: 12px; padding: 0 .8rem; min-width: 0; }
.money:focus-within { outline: 3px solid var(--accent); outline-offset: 2px; }
.money input { border: 0; background: transparent; padding: .6rem 0; outline: none; min-height: 46px; }
.money input:focus-visible { outline: none; }
.money .suffix { margin-left: .35rem; color: var(--muted); font-weight: 600; flex: none; }
.more { margin-top: .2rem; }
.two { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: .6rem; }
.err { margin: .6rem 0 0; color: var(--bad); font-weight: 600; }
.err:empty { margin: 0; }

.p-body { display: grid; grid-template-columns: 112px minmax(0, 1fr); gap: .9rem; align-items: center; margin-top: .9rem; }
.p-thumb { width: 112px; height: 112px; border-radius: 12px; background: var(--thumb); border: 1px solid var(--line); display: flex; align-items: center; justify-content: center; overflow: hidden; }
.p-thumb img { max-width: 100%; max-height: 100%; display: block; }
.p-info { min-width: 0; }
.p-size { margin: 0; font-size: 2rem; font-weight: 800; line-height: 1.15; letter-spacing: -.02em; color: var(--accent); font-variant-numeric: tabular-nums; overflow-wrap: anywhere; }
.photo.bad .p-size { color: var(--bad); }
.p-verdict { margin: .2rem 0 0; font-weight: 700; overflow-wrap: anywhere; }
.p-verdict.good { color: var(--good); }
.p-verdict.warn { color: var(--warn); }
.p-verdict.bad { color: var(--bad); }
.p-detail { white-space: pre-line; margin: .25rem 0 0; color: var(--muted); font-size: .9rem; overflow-wrap: anywhere; }
.p-detail:empty { display: none; }
.photo.busy .p-thumb img { opacity: .4; }
.photo.busy .p-verdict { color: var(--muted); }
.p-btns { display: flex; gap: .5rem; margin-top: .9rem; }
.p-btns > * { flex: 1 1 0; min-width: 0; }
.p-btns .primary { flex-grow: 1.4; }
.p-btns .wait { opacity: .5; pointer-events: none; }
.photo.bad .p-btns .primary { display: none; }
.list-actions { margin-top: .9rem; }

.faq h2 { font-size: 1.1rem; margin: 1.5rem 0 .5rem; }
details { border-top: 1px solid var(--line); padding: .6rem 0; }
summary { cursor: pointer; font-weight: 600; min-height: 32px; }
details p { margin: .4rem 0 0; color: var(--muted); }
details b { color: var(--ink); }
footer { text-align: center; margin-top: 1.5rem; font-size: .9rem; } footer a { color: var(--muted); }

/* back to the list of all apps */
.back { display: inline-flex; align-items: center; gap: .4rem; min-height: 44px; margin: 0 0 .5rem; padding: 0 1rem 0 .8rem; border: 1px solid var(--line, rgba(127,127,127,.4)); border-radius: 999px; color: var(--muted, var(--mut, inherit)); font-size: .92rem; font-weight: 600; text-decoration: none; background: transparent; align-self: flex-start; }
.back:hover { color: var(--ink, inherit); border-color: currentColor; }
.back:focus-visible { outline: 3px solid var(--accent, var(--acc, #fff)); outline-offset: 2px; }

/* narrow phones */
@media (max-width: 380px) {
    .p-body { grid-template-columns: 88px minmax(0, 1fr); gap: .7rem; }
    .p-thumb { width: 88px; height: 88px; }
    .p-size { font-size: 1.7rem; }
    .two { grid-template-columns: minmax(0, 1fr); gap: 0; }
    .p-btns { flex-wrap: wrap; }
    .p-btns .primary { flex-basis: 100%; }
}
/* very narrow phones: the light/dark switch shows only its icon so the top bar stays on one line */
@media (max-width: 360px) {
    .topbar .theme-toggle { padding: 0; width: 44px; justify-content: center; }
    .topbar .theme-toggle span { display: none; }
}

/* laptops and desktops: choosing on the left, the smaller photos on the right */
@media (min-width: 900px) {
    .app { width: min(1140px, 100%); display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.4fr); column-gap: 1.5rem; align-items: start; }
    .app > * { grid-column: 1 / -1; }
    .app > .topbar { grid-row: 1; }
    .app > header { grid-row: 2; }
    .app > .col-main { grid-column: 1; grid-row: 3; min-width: 0; }
    .app > .results { grid-column: 2; grid-row: 3; }
    .app > .faq { grid-row: 4; }
    .app > footer { grid-row: 5; }
    .app > .faq, .app > footer { width: min(760px, 100%); justify-self: center; }
    header h1 { font-size: 2.3rem; }
    .drop { min-height: 220px; }
    .results > h2 { margin-top: .2rem; }
    .p-body { grid-template-columns: 150px minmax(0, 1fr); }
    .p-thumb { width: 150px; height: 150px; }
    .p-size { font-size: 2.3rem; }
}