/* DropShare – schlichtes, modernes Design */

* { box-sizing: border-box; }
[hidden] { display: none !important; }

:root {
    --bg: #0f172a;
    --card: #1e293b;
    --panel: #273549;
    --accent: #38bdf8;
    --accent-dark: #0284c7;
    --text: #e2e8f0;
    --muted: #94a3b8;
    --error: #f87171;
    --success: #4ade80;
    --radius: 12px;
}

body {
    margin: 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    background: linear-gradient(160deg, #0f172a 0%, #1e3a5f 100%);
    color: var(--text);
    padding: 2rem 1rem;
}

.card {
    width: 100%;
    max-width: 620px;
    background: var(--card);
    border-radius: var(--radius);
    padding: 2rem;
    box-shadow: 0 20px 60px rgba(0, 0, 0, .45);
}

h1 {
    margin: 0 0 .25rem;
    font-size: 1.9rem;
    letter-spacing: .5px;
}

.subtitle {
    margin: 0 0 1.5rem;
    color: var(--muted);
}

.panel {
    background: var(--panel);
    border-radius: var(--radius);
    padding: 1.25rem 1.25rem 1.5rem;
    margin-bottom: 1.25rem;
}

.panel h2 {
    margin: 0 0 1rem;
    font-size: 1.05rem;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* ---------- Dropzone ---------- */

.dropzone {
    border: 2px dashed var(--muted);
    border-radius: var(--radius);
    padding: 2.25rem 1rem;
    text-align: center;
    cursor: pointer;
    transition: border-color .2s, background .2s;
}

.dropzone:hover,
.dropzone:focus {
    border-color: var(--accent);
    background: rgba(56, 189, 248, .07);
    outline: none;
}

.dz-icon {
    width: 44px;
    height: 44px;
    color: var(--accent);
    margin-bottom: .5rem;
}

.dropzone p { margin: .25rem 0; }

.hint {
    font-size: .8rem;
    color: var(--muted);
}

/* ---------- Datei-Liste / Fortschritt ---------- */

.filelist { margin-top: 1rem; }

.file-item {
    background: rgba(255, 255, 255, .04);
    border-radius: 8px;
    padding: .75rem 1rem;
    margin-bottom: .5rem;
}

.file-name {
    font-weight: 600;
    word-break: break-all;
}

.file-size {
    float: right;
    color: var(--muted);
    font-size: .85rem;
}

.progress {
    height: 6px;
    background: rgba(255, 255, 255, .1);
    border-radius: 3px;
    margin: .5rem 0 .35rem;
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    width: 0;
    background: var(--accent);
    transition: width .2s;
}

.file-status {
    font-size: .8rem;
    color: var(--muted);
}

/* ---------- Ergebnis / Code ---------- */

.result {
    margin-top: 1.25rem;
    text-align: center;
    background: rgba(74, 222, 128, .08);
    border: 1px solid rgba(74, 222, 128, .35);
    border-radius: var(--radius);
    padding: 1.25rem;
}

.result-label {
    margin: 0;
    color: var(--muted);
    font-size: .85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.code-display {
    font-family: "Cascadia Code", Consolas, monospace;
    font-size: 2.6rem;
    font-weight: 700;
    letter-spacing: .35em;
    margin: .35rem 0;
    color: var(--success);
    user-select: all;
}

.result-file {
    color: var(--muted);
    font-size: .9rem;
    word-break: break-all;
}

.result-actions {
    display: flex;
    gap: .5rem;
    justify-content: center;
    margin: .75rem 0 .5rem;
}

/* ---------- Download-Formular ---------- */

.download-row {
    display: flex;
    gap: .5rem;
}

#code {
    flex: 1;
    padding: .8rem 1rem;
    font-family: "Cascadia Code", Consolas, monospace;
    font-size: 1.4rem;
    letter-spacing: .3em;
    text-align: center;
    text-transform: uppercase;
    background: rgba(255, 255, 255, .06);
    border: 1px solid rgba(255, 255, 255, .15);
    border-radius: 8px;
    color: var(--text);
}

#code:focus {
    outline: none;
    border-color: var(--accent);
}

/* ---------- Buttons ---------- */

.btn {
    display: inline-block;
    padding: .8rem 1.4rem;
    border: none;
    border-radius: 8px;
    background: var(--accent);
    color: #06202e;
    font-weight: 700;
    font-size: .95rem;
    cursor: pointer;
    text-decoration: none;
    transition: background .2s;
}

.btn:hover { background: var(--accent-dark); color: #fff; }

.btn-secondary {
    background: rgba(255, 255, 255, .12);
    color: var(--text);
}

.btn-secondary:hover { background: rgba(255, 255, 255, .2); color: var(--text); }

.btn:disabled { opacity: .55; cursor: wait; }
.btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

/* ---------- Textübertragung / Dialog ---------- */

.transfer-modes { display: flex; gap: .5rem; margin-bottom: 1rem; }
.mode-btn { flex: 1; padding: .7rem .6rem; }
.mode-btn[aria-pressed="false"] { background: rgba(255, 255, 255, .08); color: var(--muted); }

#text-transfer label { display: block; margin-bottom: .5rem; }

.text-area {
    display: block;
    width: 100%;
    min-height: 140px;
    padding: .8rem;
    font: .95rem/1.5 "Cascadia Code", Consolas, monospace;
    color: var(--text);
    background: rgba(255, 255, 255, .06);
    border: 1px solid rgba(255, 255, 255, .2);
    border-radius: 8px;
    resize: vertical;
    tab-size: 4;
}

.text-area:focus { outline: 2px solid var(--accent); outline-offset: 2px; }
.text-area::placeholder { color: var(--muted); }
#text-size.over-limit { color: var(--error); }

.text-dialog {
    width: calc(100% - 2rem);
    max-width: 760px;
    max-height: calc(100dvh - 2rem);
    padding: 1.5rem;
    border: 1px solid rgba(255, 255, 255, .15);
    border-radius: var(--radius);
    background: var(--card);
    color: var(--text);
    box-shadow: 0 20px 60px rgba(0, 0, 0, .5);
}

.text-dialog::backdrop { background: rgba(0, 0, 0, .7); }
.dialog-header { display: flex; align-items: center; justify-content: space-between; gap: .75rem; margin-bottom: 1rem; }
.dialog-header h2 { margin: 0; font-size: 1.1rem; }
.dialog-actions { display: flex; gap: .5rem; }
.icon-btn { display: inline-flex; align-items: center; justify-content: center; width: 42px; height: 42px; padding: .5rem; font-size: 1.6rem; }
.icon-btn svg { width: 22px; height: 22px; }
.received-text {
    max-height: 55dvh;
    white-space: pre-wrap;
    overflow-wrap: anywhere;
    overflow: auto;
}

/* ---------- Fehler ---------- */

.error-box {
    background: rgba(248, 113, 113, .12);
    border: 1px solid rgba(248, 113, 113, .4);
    color: var(--error);
    border-radius: 8px;
    padding: .75rem 1rem;
    margin-top: .75rem;
}

/* ---------- Sonstiges ---------- */

.footer {
    margin-top: 1rem;
    color: var(--muted);
    font-size: .8rem;
    text-align: center;
}

.sr-only {
    position: absolute;
    width: 1px; height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
}

@media (max-width: 480px) {
    .card { padding: 1.25rem; }
    .download-row { flex-direction: column; }
    .code-display { font-size: 2rem; }
}