.kavalci-udf {
    --ku-gold: #c8a46a;
    --ku-gold-dark: #a9844d;
    --ku-ink: #1f2022;
    --ku-text: #263238;
    --ku-muted: #697278;
    --ku-soft: #f6f3ed;
    --ku-line: #ded8cf;
    box-sizing: border-box;
    max-width: 880px;
    margin: 42px auto;
    padding: clamp(24px, 5vw, 54px);
    border: 1px solid var(--ku-line);
    border-top: 5px solid var(--ku-gold);
    background: #fff;
    color: var(--ku-text);
    box-shadow: 0 18px 55px rgba(28, 24, 18, .08);
    font-family: Arial, Helvetica, sans-serif;
}

.kavalci-udf *, .kavalci-udf *::before, .kavalci-udf *::after { box-sizing: border-box; }
.kavalci-udf__eyebrow { color: var(--ku-gold-dark); font-size: 12px; font-weight: 800; letter-spacing: .14em; }
.kavalci-udf__title { margin: 8px 0 12px; color: var(--ku-ink); font-family: Georgia, 'Times New Roman', serif; font-size: clamp(28px, 4vw, 42px); line-height: 1.14; }
.kavalci-udf__lead { max-width: 720px; margin: 0 0 24px; color: var(--ku-muted); font-size: 16px; line-height: 1.65; }
.kavalci-udf__modes { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin: 0 0 22px; }
.kavalci-udf__mode { display: flex; min-height: 78px; flex-direction: column; justify-content: center; padding: 14px 18px; border: 1px solid var(--ku-line); border-radius: 3px; background: #fff; color: var(--ku-text); font: inherit; text-align: left; cursor: pointer; transition: border-color .2s, background .2s, box-shadow .2s; }
.kavalci-udf__mode strong { color: var(--ku-ink); font-size: 17px; }
.kavalci-udf__mode span { margin-top: 4px; color: var(--ku-muted); font-size: 12px; }
.kavalci-udf__mode:hover, .kavalci-udf__mode.is-active { border-color: var(--ku-gold-dark); background: #faf6ee; box-shadow: inset 0 -3px 0 var(--ku-gold); }
.kavalci-udf__privacy { display: flex; gap: 12px; align-items: flex-start; margin-bottom: 26px; padding: 14px 16px; border-left: 4px solid var(--ku-gold); background: var(--ku-soft); font-size: 14px; line-height: 1.5; }
.kavalci-udf__privacy-mark { display: grid; flex: 0 0 25px; width: 25px; height: 25px; place-items: center; border-radius: 50%; background: var(--ku-ink); color: #fff; font-weight: 800; }
.kavalci-udf__drop { padding: 38px 22px; border: 2px dashed #c9c1b5; background: #fcfbf9; text-align: center; cursor: pointer; transition: border-color .2s, background .2s, transform .2s; }
.kavalci-udf__drop:hover, .kavalci-udf__drop:focus, .kavalci-udf__drop.is-dragging { outline: none; border-color: var(--ku-gold-dark); background: #faf6ee; transform: translateY(-1px); }
.kavalci-udf__file { position: absolute !important; width: 1px !important; height: 1px !important; opacity: 0 !important; pointer-events: none; }
.kavalci-udf__drop-icon { display: inline-grid; width: 64px; height: 72px; margin-bottom: 15px; place-items: center; border: 2px solid var(--ku-ink); border-radius: 4px; color: var(--ku-ink); font-size: 13px; font-weight: 900; letter-spacing: .04em; }
.kavalci-udf__drop-title { color: var(--ku-ink); font-size: 20px; font-weight: 750; }
.kavalci-udf__drop-copy { margin: 5px 0 18px; color: var(--ku-muted); font-size: 14px; }
.kavalci-udf__choose, .kavalci-udf__convert, .kavalci-udf__download { display: inline-flex; min-height: 46px; align-items: center; justify-content: center; border: 0; border-radius: 2px; background: var(--ku-ink); color: #fff !important; font: inherit; font-weight: 750; text-decoration: none !important; cursor: pointer; transition: background .2s, transform .2s; }
.kavalci-udf__choose { padding: 0 24px; }
.kavalci-udf__convert { width: 100%; margin-top: 18px; padding: 0 28px; background: var(--ku-gold-dark); font-size: 16px; }
.kavalci-udf__convert:disabled { background: #aaa49b; cursor: not-allowed; }
.kavalci-udf__choose:hover, .kavalci-udf__convert:not(:disabled):hover, .kavalci-udf__download:hover { background: #343638; transform: translateY(-1px); }
.kavalci-udf__selection { display: flex; justify-content: space-between; gap: 18px; align-items: center; margin-top: 15px; padding: 14px 16px; border: 1px solid var(--ku-line); background: #fff; }
.kavalci-udf__filename { overflow-wrap: anywhere; color: var(--ku-ink); font-weight: 750; }
.kavalci-udf__filesize { margin-top: 3px; color: var(--ku-muted); font-size: 13px; }
.kavalci-udf__clear { border: 0; background: transparent; color: #8b3434; font: inherit; font-size: 13px; font-weight: 700; cursor: pointer; }
.kavalci-udf__progress { margin-top: 20px; color: var(--ku-muted); font-size: 14px; text-align: center; }
.kavalci-udf__progress-bar { overflow: hidden; height: 8px; margin-bottom: 9px; border-radius: 8px; background: #e9e4dc; }
.kavalci-udf__progress-bar span { display: block; width: 8%; height: 100%; border-radius: inherit; background: var(--ku-gold-dark); transition: width .25s ease; }
.kavalci-udf__result { margin-top: 22px; padding: 22px; border: 1px solid #bfd5c4; background: #f6fbf7; }
.kavalci-udf__result-head { display: flex; gap: 13px; align-items: flex-start; color: #214b2d; }
.kavalci-udf__result-check { display: grid; flex: 0 0 30px; width: 30px; height: 30px; place-items: center; border-radius: 50%; background: #2e7042; color: #fff; font-weight: 900; }
.kavalci-udf__download { width: 100%; margin-top: 18px; padding: 0 24px; background: #2e7042; }
.kavalci-udf__report { margin: 16px 0 0; padding-left: 20px; color: #4c5850; font-size: 13px; line-height: 1.55; }
.kavalci-udf__final-note { margin: 14px 0 0; color: var(--ku-muted); font-size: 12px; line-height: 1.5; }
.kavalci-udf__error { margin-top: 18px; padding: 14px 16px; border-left: 4px solid #a63d3d; background: #fff2f2; color: #792626; line-height: 1.5; }

@media (max-width: 640px) {
    .kavalci-udf { margin: 20px 0; padding: 24px 18px 30px; }
    .kavalci-udf__modes { grid-template-columns: 1fr; }
    .kavalci-udf__drop { padding: 30px 15px; }
    .kavalci-udf__selection { align-items: flex-start; }
}