:root { color-scheme: light; font-family: "Pretendard", "Segoe UI", Arial, sans-serif; color: #13233c; background: #f4f7fb; }
* { box-sizing: border-box; }
body { margin: 0; min-width: 320px; background: radial-gradient(circle at 12% -10%, #e4edff 0, transparent 35%), #f4f7fb; }
.shell { width: min(820px, calc(100% - 36px)); margin: 0 auto; padding: 70px 0 38px; }
header { margin-bottom: 30px; }
.eyebrow { color: #3867d6; font-size: 13px; font-weight: 700; letter-spacing: .02em; display: flex; gap: 7px; align-items: center; }
.lock { font-size: 20px; line-height: 0; transform: rotate(45deg); }
h1 { font-size: clamp(35px, 6vw, 55px); letter-spacing: -.055em; margin: 13px 0 12px; }
header p { color: #65748b; font-size: 16px; line-height: 1.6; margin: 0; }
.card { background: #fff; border: 1px solid #e4eaf3; box-shadow: 0 12px 30px rgba(28, 55, 103, .06); border-radius: 18px; padding: 27px; margin-bottom: 17px; }
.section-heading { display: flex; gap: 14px; align-items: flex-start; }
.step { display: grid; place-items: center; width: 30px; height: 30px; border-radius: 9px; color: #3968d7; background: #eaf0ff; font-size: 12px; font-weight: 800; }
h2 { margin: 2px 0 3px; font-size: 17px; letter-spacing: -.02em; }
.section-heading p { margin: 0; color: #77859a; font-size: 13px; }
.dropzone { position: relative; border: 1.5px dashed #aebed8; border-radius: 13px; min-height: 176px; margin-top: 24px; display: flex; flex-direction: column; justify-content: center; align-items: center; gap: 9px; transition: .18s ease; text-align: center; padding: 20px; }
.dropzone:hover, .dropzone.drag { background: #f5f8ff; border-color: #3867d6; transform: translateY(-1px); }
.dropzone input { position: absolute; width: 1px; height: 1px; opacity: 0; pointer-events: none; }.drop-icon { color: #3867d6; font-size: 33px; line-height: 1; }.dropzone strong { font-size: 15px; }.choose-files { border: 0; border-radius: 8px; background: #3867d6; color: #fff; cursor: pointer; font: inherit; font-size: 13px; font-weight: 800; padding: 9px 15px; }.choose-files:hover { background: #2d59bd; }.dropzone small { color: #7e8b9d; font-size: 12px; }
.file-list { list-style: none; padding: 0; margin: 16px 0 0; display: grid; gap: 8px; }.file-list:empty { display: none; }
.file-list li { display: flex; align-items: center; justify-content: space-between; gap: 15px; padding: 11px 13px; border-radius: 10px; background: #f6f8fc; font-size: 13px; }.file-list li div { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }.file-list small { color: #7a889d; margin-left: 7px; }.file-list button { border: 0; color: #70809a; background: none; cursor: pointer; font-size: 19px; }
.controls { margin: 22px 0 0 44px; display: flex; gap: 20px; align-items: end; }.controls label { display: grid; gap: 8px; color: #5d6c81; font-size: 13px; font-weight: 700; }.controls select { width: 210px; border: 1px solid #ccd7e7; border-radius: 9px; color: #253754; background: white; padding: 10px; font: inherit; }.privacy { border-left: 1px solid #e2e8f1; padding: 2px 0 2px 20px; display: grid; gap: 3px; font-size: 12px; color: #728097; }.privacy b { color: #2e6048; }.privacy span { max-width: 220px; }
.action-panel { min-height: 90px; padding: 18px 22px; background: #162b50; color: white; border-radius: 16px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }.action-panel div { display: grid; gap: 5px; }.action-panel b { font-size: 15px; }.action-panel span { color: #b4c1d5; font-size: 13px; }.action-panel button { background: #72e2b8; color: #123b32; border: none; border-radius: 10px; padding: 13px 16px; font-weight: 800; cursor: pointer; transition: transform .15s; }.action-panel button:hover:not(:disabled) { transform: translateY(-1px); }.action-panel button:disabled { opacity: .45; cursor: not-allowed; }
.progress-wrap { margin: 16px 2px 0; }.progress-bar { height: 7px; overflow: hidden; border-radius: 10px; background: #dbe4f1; }.progress-bar span { display: block; height: 100%; width: 0; background: #4676e8; transition: width .18s; }.progress-wrap p { color: #65748b; font-size: 13px; margin: 8px 0; } footer { color: #8896a9; font-size: 12px; text-align: center; margin-top: 27px; }
@media (max-width: 600px) { .shell { width: min(100% - 24px, 820px); padding-top: 38px; }.card { padding: 20px; }.controls { margin-left: 0; flex-direction: column; align-items: stretch; }.controls select { width: 100%; }.privacy { border-left: 0; border-top: 1px solid #e2e8f1; padding: 13px 0 0; }.action-panel { padding: 17px; }.action-panel button { white-space: nowrap; } }