/* ===================================
   PixelDrain Uploader – style.css
   Dark-mode, Be Vietnam Pro, minimal
   =================================== */

@import url('https://fonts.googleapis.com/css2?family=Be+Vietnam+Pro:wght@300;400;500;600;700&display=swap');

/* ── Tokens ── */
:root {
  --bg:          #0d0f14;
  --surface:     #161920;
  --surface-2:   #1e222c;
  --border:      #262b38;
  --border-hover:#3a4155;
  --accent:      #5b8dee;
  --accent-dim:  #3a6be0;
  --accent-glow: rgba(91,141,238,.18);
  --success:     #34d399;
  --success-dim: rgba(52,211,153,.12);
  --error:       #f87171;
  --error-dim:   rgba(248,113,113,.12);
  --warn:        #fbbf24;
  --text:        #e8ecf4;
  --text-2:      #8b93a8;
  --text-3:      #565e72;
  --radius:      14px;
  --radius-sm:   8px;
  --transition:  .2s cubic-bezier(.4,0,.2,1);
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Be Vietnam Pro', sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, textarea { font-family: inherit; }

/* ── Layout ── */
.container {
  max-width: 780px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ── Header ── */
header {
  padding: 28px 0 24px;
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex;
  align-items: center;
  gap: 14px;
}
.logo-icon {
  width: 42px; height: 42px;
  background: linear-gradient(135deg, var(--accent) 0%, #8b5cf6 100%);
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}
.logo-text h1 {
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: -.02em;
  line-height: 1.2;
}
.logo-text span {
  font-size: .78rem;
  color: var(--text-2);
  font-weight: 400;
}

/* ── Main ── */
main { padding: 36px 0 60px; display: flex; flex-direction: column; gap: 28px; }

/* ── Drop Zone ── */
.drop-zone {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  padding: 52px 24px;
  text-align: center;
  cursor: pointer;
  transition: border-color var(--transition), background var(--transition), box-shadow var(--transition);
  position: relative;
  overflow: hidden;
}
.drop-zone::before {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(ellipse at 50% 0%, var(--accent-glow) 0%, transparent 70%);
  opacity: 0;
  transition: opacity var(--transition);
}
.drop-zone:hover,
.drop-zone.drag-over {
  border-color: var(--accent);
  background: var(--surface-2);
  box-shadow: 0 0 0 4px var(--accent-glow);
}
.drop-zone:hover::before,
.drop-zone.drag-over::before { opacity: 1; }
.drop-zone.drag-over { border-style: solid; }

.drop-icon {
  width: 64px; height: 64px;
  margin: 0 auto 16px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 26px;
  transition: transform var(--transition), background var(--transition);
}
.drop-zone:hover .drop-icon,
.drop-zone.drag-over .drop-icon {
  transform: scale(1.08);
  background: var(--accent-glow);
  border-color: var(--accent);
}
.drop-label {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
}
.drop-sub {
  font-size: .84rem;
  color: var(--text-2);
  margin-bottom: 18px;
}
.drop-sub em { color: var(--accent); font-style: normal; }

.btn-select {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--accent);
  color: #fff;
  font-size: .88rem;
  font-weight: 600;
  padding: 10px 22px;
  border-radius: var(--radius-sm);
  transition: background var(--transition), transform var(--transition);
}
.btn-select:hover { background: var(--accent-dim); transform: translateY(-1px); }
.btn-select:active { transform: translateY(0); }

#fileInput { display: none; }

/* ── File Queue ── */
.section-title {
  font-size: .82rem;
  font-weight: 600;
  color: var(--text-2);
  text-transform: uppercase;
  letter-spacing: .08em;
  margin-bottom: 12px;
}

.file-queue { display: flex; flex-direction: column; gap: 10px; }

.file-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  transition: border-color var(--transition);
}
.file-card.uploading { border-color: var(--accent); }
.file-card.done      { border-color: var(--success); }
.file-card.error     { border-color: var(--error); }

.file-card-header {
  display: flex; align-items: center; gap: 12px;
  margin-bottom: 10px;
}
.file-ext {
  width: 36px; height: 36px; flex-shrink: 0;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: .65rem;
  font-weight: 700;
  color: var(--text-2);
  text-transform: uppercase;
  letter-spacing: .04em;
}
.file-info { flex: 1; min-width: 0; }
.file-name {
  font-size: .9rem;
  font-weight: 600;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.file-meta {
  font-size: .78rem;
  color: var(--text-2);
  margin-top: 2px;
}

.file-status {
  flex-shrink: 0;
  font-size: .78rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 20px;
}
.file-status.waiting    { background: var(--surface-2); color: var(--text-3); }
.file-status.uploading  { background: var(--accent-glow); color: var(--accent); }
.file-status.done       { background: var(--success-dim); color: var(--success); }
.file-status.error      { background: var(--error-dim); color: var(--error); }

/* Progress bar */
.progress-wrap {
  height: 4px;
  background: var(--surface-2);
  border-radius: 2px;
  overflow: hidden;
  margin-bottom: 8px;
}
.progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), #8b5cf6);
  border-radius: 2px;
  transition: width .3s ease;
}
.file-card.done .progress-bar { background: var(--success); }
.file-card.error .progress-bar { background: var(--error); }

.progress-info {
  display: flex; justify-content: space-between;
  font-size: .76rem; color: var(--text-2);
}

/* Result row */
.file-result {
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px solid var(--border);
  display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
}
.result-url {
  flex: 1; min-width: 0;
  font-size: .82rem;
  color: var(--accent);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.btn-icon {
  width: 30px; height: 30px;
  border-radius: 6px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  font-size: 14px;
  color: var(--text-2);
  transition: background var(--transition), color var(--transition), border-color var(--transition);
}
.btn-icon:hover { background: var(--accent); color: #fff; border-color: var(--accent); }
.btn-icon.copied { background: var(--success-dim); color: var(--success); border-color: var(--success); }

.error-msg {
  margin-top: 8px;
  font-size: .8rem;
  color: var(--error);
  background: var(--error-dim);
  border: 1px solid var(--error);
  border-radius: 6px;
  padding: 6px 10px;
}

/* ── Upload Controls ── */
.upload-controls {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
}
.btn-primary {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--accent);
  color: #fff;
  font-size: .9rem;
  font-weight: 600;
  padding: 11px 28px;
  border-radius: var(--radius-sm);
  transition: background var(--transition), transform var(--transition), opacity var(--transition);
}
.btn-primary:hover:not(:disabled) { background: var(--accent-dim); transform: translateY(-1px); }
.btn-primary:disabled { opacity: .4; cursor: not-allowed; transform: none; }

.btn-ghost {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--surface);
  color: var(--text-2);
  font-size: .88rem;
  font-weight: 500;
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  transition: border-color var(--transition), color var(--transition);
}
.btn-ghost:hover { border-color: var(--border-hover); color: var(--text); }

/* ── QR Modal ── */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,.7);
  backdrop-filter: blur(4px);
  display: flex; align-items: center; justify-content: center;
  z-index: 100;
  opacity: 0; pointer-events: none;
  transition: opacity var(--transition);
}
.modal-overlay.open { opacity: 1; pointer-events: all; }
.modal-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  max-width: 340px;
  width: 90%;
  text-align: center;
  transform: scale(.95);
  transition: transform var(--transition);
}
.modal-overlay.open .modal-box { transform: scale(1); }
.modal-box h3 { font-size: 1rem; font-weight: 700; margin-bottom: 4px; }
.modal-box p  { font-size: .82rem; color: var(--text-2); margin-bottom: 18px; }
#qrCanvas {
  border-radius: 8px;
  background: #fff;
  padding: 10px;
  display: block; margin: 0 auto 18px;
}
.modal-close {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--surface-2);
  color: var(--text-2);
  font-size: .85rem;
  font-weight: 500;
  padding: 8px 18px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  transition: border-color var(--transition), color var(--transition);
}
.modal-close:hover { border-color: var(--border-hover); color: var(--text); }

/* ── History ── */
.history-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 12px;
}
.btn-danger-ghost {
  display: inline-flex; align-items: center; gap: 6px;
  background: transparent;
  color: var(--error);
  font-size: .8rem;
  font-weight: 500;
  padding: 5px 12px;
  border-radius: 6px;
  border: 1px solid var(--error);
  opacity: .7;
  transition: opacity var(--transition), background var(--transition);
}
.btn-danger-ghost:hover { opacity: 1; background: var(--error-dim); }

.history-empty {
  font-size: .88rem;
  color: var(--text-3);
  text-align: center;
  padding: 28px 0;
}

.history-list { display: flex; flex-direction: column; gap: 8px; }
.history-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  display: flex; align-items: center; gap: 12px;
}
.history-item-info { flex: 1; min-width: 0; }
.history-name {
  font-size: .88rem; font-weight: 600;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.history-date { font-size: .76rem; color: var(--text-3); margin-top: 2px; }
.history-actions { display: flex; gap: 6px; flex-shrink: 0; }
.btn-icon-sm {
  width: 28px; height: 28px;
  border-radius: 6px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  font-size: 13px;
  color: var(--text-2);
  transition: background var(--transition), color var(--transition);
}
.btn-icon-sm:hover { background: var(--accent); color: #fff; border-color: var(--accent); }
.btn-icon-sm.del:hover { background: var(--error-dim); color: var(--error); border-color: var(--error); }

/* ── Toast ── */
.toast-wrap {
  position: fixed; bottom: 24px; right: 24px;
  display: flex; flex-direction: column; gap: 8px;
  z-index: 200;
}
.toast {
  display: flex; align-items: center; gap: 10px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  font-size: .86rem;
  font-weight: 500;
  box-shadow: 0 8px 32px rgba(0,0,0,.4);
  animation: slideIn .25s ease;
  max-width: 320px;
}
.toast.success { border-color: var(--success); }
.toast.error   { border-color: var(--error); }
.toast-icon { font-size: 16px; }
@keyframes slideIn {
  from { transform: translateX(40px); opacity: 0; }
  to   { transform: translateX(0);    opacity: 1; }
}
@keyframes fadeOut {
  to { opacity: 0; transform: translateX(40px); }
}

/* ── Responsive ── */
@media (max-width: 600px) {
  .drop-zone { padding: 36px 16px; }
  .drop-icon { width: 52px; height: 52px; }
  .upload-controls { flex-direction: column; align-items: stretch; }
  .btn-primary, .btn-ghost { justify-content: center; }
  .toast-wrap { left: 16px; right: 16px; bottom: 16px; }
  .toast { max-width: 100%; }
}