:root { color-scheme: light dark; font-family: system-ui, sans-serif; --bg: #f3f5fa; --panel: #fff; --text: #192136; --muted: #64708a; --border: #ccd3e0; --accent: #5269dc; }
@media (prefers-color-scheme: dark) { :root { --bg: #10131d; --panel: #191e2d; --text: #eef1fa; --muted: #a4aec4; --border: #3a4358; --accent: #8797ff; } }
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); }
h1, h2, p { margin-top: 0; }
h1 { margin-bottom: .35rem; }
h2 { font-size: 1.15rem; }
p, small { color: var(--muted); }
a { color: var(--accent); overflow-wrap: anywhere; }
button, .button { border: 0; border-radius: .65rem; background: var(--accent); color: #fff; cursor: pointer; font: inherit; font-weight: 600; padding: .7rem 1rem; text-decoration: none; display: inline-block; }
button:disabled { opacity: .5; cursor: wait; }
.secondary { color: var(--text); background: transparent; border: 1px solid var(--border); }
.danger { color: #e85e6d; }
.container { max-width: 960px; margin: auto; padding: 3rem 1.25rem; }
header, .file-row, .actions { display: flex; align-items: center; justify-content: space-between; gap: .75rem; }
header { margin-bottom: 2rem; }
.dropzone, .card, .file-list, .upload-row, dialog { background: var(--panel); border-radius: 1rem; }
.dropzone { border: 2px dashed var(--border); padding: 3rem 1rem; text-align: center; margin-bottom: 2.5rem; transition: border-color .2s; }
.dropzone.dragging { border-color: var(--accent); }
.file-list { padding: .5rem 1.25rem; }
.file-row { padding: 1rem 0; border-bottom: 1px solid var(--border); }
.file-row:last-child { border-bottom: 0; }
.file-info { min-width: 0; display: grid; gap: .35rem; }
.empty { padding: 1rem 0; margin: 0; }
.upload-row { display: flex; flex-direction: column; gap: .5rem; padding: 1rem; margin-bottom: .75rem; overflow-wrap: anywhere; }
progress { width: 100%; accent-color: var(--accent); }
.login-page { min-height: 100vh; display: grid; place-items: center; padding: 1rem; }
.login-card { width: min(100%, 400px); padding: 2.5rem; }
form { display: grid; gap: .75rem; }
input[type=password] { font: inherit; border: 1px solid var(--border); border-radius: .5rem; padding: .75rem; color: var(--text); background: var(--bg); width: 100%; }
dialog { color: var(--text); border: 1px solid var(--border); padding: 1.5rem; max-width: min(90vw, 450px); }
dialog::backdrop { background: #000a; }
#toast { position: fixed; bottom: 1.5rem; right: 1.5rem; background: var(--text); color: var(--bg); padding: .8rem 1rem; border-radius: .65rem; opacity: 0; pointer-events: none; transition: opacity .2s; }
#toast.visible { opacity: 1; }
@media (max-width: 600px) { .file-row { align-items: flex-start; flex-direction: column; } .container { padding-top: 1.5rem; } }