/* Splitto / Hesapçı — misafir arayüzü */
:root {
    --bg: #f6f7f9;
    --card: #ffffff;
    --ink: #12181f;
    --muted: #6b7785;
    --line: #e4e8ed;
    --brand: #1b7cb5;
    --brand-ink: #ffffff;
    --pos: #0a8f6f;
    --neg: #d1544a;
    --radius: 14px;
    --shadow: 0 1px 2px rgba(18, 24, 31, .06), 0 8px 24px rgba(18, 24, 31, .05);
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #0e1216;
        --card: #171d23;
        --ink: #eef2f6;
        --muted: #93a1b0;
        --line: #262f38;
        --brand: #4fc0e8;
        --brand-ink: #06222e;
        --pos: #34d399;
        --neg: #f87171;
        --shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 8px 24px rgba(0, 0, 0, .3);
    }
}

* { box-sizing: border-box; }

body {
    margin: 0;
    background: var(--bg);
    color: var(--ink);
    font: 16px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    -webkit-font-smoothing: antialiased;
}

.wrap {
    max-width: 560px;
    margin: 0 auto;
    padding: 20px 16px 56px;
}

.top {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 18px;
}

.mark {
    display: inline-block;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: .08em;
    text-transform: uppercase;
    color: var(--brand);
}

.top h1 { margin: 2px 0 0; font-size: 24px; line-height: 1.25; }

.lang {
    flex: none;
    font-size: 13px;
    color: var(--muted);
    text-decoration: none;
    border: 1px solid var(--line);
    border-radius: 999px;
    padding: 5px 12px;
    background: var(--card);
}
.lang:hover { color: var(--ink); }

.card {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 16px;
    margin-bottom: 14px;
}

.card h2 { margin: 0 0 12px; font-size: 15px; letter-spacing: .01em; }
.card.empty { text-align: center; color: var(--muted); padding: 32px 16px; }
.card.hero { text-align: center; padding: 40px 20px; }
.hero h1 { margin: 0 0 8px; font-size: 32px; }
.lede { font-size: 18px; margin: 0 0 6px; }
.muted { color: var(--muted); }

.tabs { display: flex; gap: 6px; margin-bottom: 14px; }
.tabs button {
    flex: 1;
    padding: 10px;
    font: inherit;
    font-weight: 600;
    color: var(--muted);
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: 10px;
    cursor: pointer;
}
.tabs button[aria-selected="true"] { background: var(--brand); border-color: var(--brand); color: var(--brand-ink); }

.row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid var(--line);
}
.row:last-child { border-bottom: 0; padding-bottom: 0; }
.row:first-child { padding-top: 0; }
.row .sub { font-size: 13px; color: var(--muted); }
.row .amt { font-variant-numeric: tabular-nums; font-weight: 600; white-space: nowrap; }
.pos { color: var(--pos); }
.neg { color: var(--neg); }

.list-btn {
    display: block;
    width: 100%;
    text-align: start;
    font: inherit;
    padding: 13px 14px;
    margin-bottom: 8px;
    background: var(--card);
    color: var(--ink);
    border: 1px solid var(--line);
    border-radius: 10px;
    cursor: pointer;
}
.list-btn:disabled { opacity: .45; cursor: not-allowed; }
.list-btn:not(:disabled):hover { border-color: var(--brand); }

label { display: block; font-size: 13px; color: var(--muted); margin: 12px 0 5px; }

input[type="text"], input[type="number"], select {
    width: 100%;
    font: inherit;
    color: var(--ink);
    background: var(--bg);
    border: 1px solid var(--line);
    border-radius: 10px;
    padding: 11px 12px;
}
input:focus, select:focus { outline: 2px solid var(--brand); outline-offset: 1px; }

.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 12px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: var(--bg);
    font-size: 14px;
    cursor: pointer;
    user-select: none;
}
.chip input { accent-color: var(--brand); margin: 0; }
.chip.on { border-color: var(--brand); background: color-mix(in srgb, var(--brand) 12%, transparent); }

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    font: inherit;
    font-weight: 600;
    padding: 13px 16px;
    margin-top: 16px;
    border: 0;
    border-radius: 10px;
    background: var(--brand);
    color: var(--brand-ink);
    cursor: pointer;
}
.btn[disabled] { opacity: .5; cursor: progress; }
.btn.ghost { background: transparent; color: var(--muted); border: 1px solid var(--line); margin-top: 8px; }

.linkbtn {
    background: none;
    border: 0;
    padding: 0;
    font: inherit;
    font-size: 13px;
    color: var(--muted);
    cursor: pointer;
    text-decoration: underline;
}
.linkbtn:hover { color: var(--neg); }

.notice {
    padding: 11px 13px;
    border-radius: 10px;
    background: color-mix(in srgb, var(--brand) 10%, transparent);
    border: 1px solid color-mix(in srgb, var(--brand) 30%, transparent);
    font-size: 14px;
    margin-bottom: 14px;
}
.notice.err { background: color-mix(in srgb, var(--neg) 10%, transparent); border-color: color-mix(in srgb, var(--neg) 35%, transparent); }

.foot { text-align: center; margin-top: 22px; font-size: 13px; }
.foot a { color: var(--brand); }