/* ============================================================
   My Clone — Main Stylesheet
   Theme: Deep Space / Glassmorphism
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Syne:wght@400;500;600;700;800&family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;1,9..40,300&display=swap');

/* ── Reset & Variables ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg-0:       #050810;
  --bg-1:       #0b0f1e;
  --bg-2:       #111629;
  --bg-3:       #1a2038;
  --glass:      rgba(255,255,255,0.04);
  --glass-2:    rgba(255,255,255,0.08);
  --glass-border: rgba(255,255,255,0.10);
  --accent:     #4f8ef7;
  --accent-2:   #7c5ef7;
  --accent-glow: rgba(79,142,247,0.35);
  --green:      #22d3a0;
  --green-glow: rgba(34,211,160,0.3);
  --yellow:     #f7c94f;
  --red:        #f75f5f;
  --text-0:     #ffffff;
  --text-1:     #c8d4f0;
  --text-2:     #7b8ab8;
  --text-3:     #4a5580;
  --radius:     16px;
  --radius-sm:  10px;
  --radius-lg:  24px;
  --shadow:     0 8px 32px rgba(0,0,0,0.5);
  --transition: 0.22s cubic-bezier(0.4,0,0.2,1);
}

html { scroll-behavior: smooth; }

body {
  font-family: 'DM Sans', sans-serif;
  background: var(--bg-0);
  color: var(--text-1);
  min-height: 100vh;
  line-height: 1.6;
  overflow-x: hidden;
}

/* ── Background Decoration ── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 50% at 20% 10%, rgba(79,142,247,0.12) 0%, transparent 60%),
    radial-gradient(ellipse 60% 40% at 80% 80%, rgba(124,94,247,0.10) 0%, transparent 50%),
    radial-gradient(ellipse 40% 30% at 60% 30%, rgba(34,211,160,0.06) 0%, transparent 50%);
  pointer-events: none;
  z-index: 0;
}

/* ── Typography ── */
h1,h2,h3,h4 { font-family: 'Syne', sans-serif; color: var(--text-0); font-weight: 700; }

/* ── Layout ── */
#app { position: relative; z-index: 1; min-height: 100vh; display: flex; flex-direction: column; }

/* ── Header ── */
.header {
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--glass-border);
  backdrop-filter: blur(20px);
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(5,8,16,0.8);
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.logo-icon {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  box-shadow: 0 0 20px var(--accent-glow);
}

.logo-text {
  font-family: 'Syne', sans-serif;
  font-size: 22px;
  font-weight: 800;
  color: var(--text-0);
  letter-spacing: -0.5px;
}

.logo-text span { color: var(--accent); }

.header-actions { display: flex; gap: 10px; align-items: center; }

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  font-family: 'DM Sans', sans-serif;
  font-size: 14px;
  font-weight: 500;
  transition: var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: white;
  box-shadow: 0 4px 20px var(--accent-glow);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 30px var(--accent-glow); }
.btn-primary:active { transform: translateY(0); }

.btn-secondary {
  background: var(--glass-2);
  color: var(--text-1);
  border: 1px solid var(--glass-border);
}
.btn-secondary:hover { background: var(--bg-3); color: var(--text-0); border-color: var(--accent); }

.btn-ghost {
  background: transparent;
  color: var(--text-2);
  border: 1px solid transparent;
}
.btn-ghost:hover { color: var(--text-0); border-color: var(--glass-border); background: var(--glass); }

.btn-danger { background: rgba(247,95,95,0.15); color: var(--red); border: 1px solid rgba(247,95,95,0.3); }
.btn-danger:hover { background: rgba(247,95,95,0.25); }

.btn-green { background: linear-gradient(135deg, #22d3a0, #1ab88a); color: #050810; font-weight: 600; box-shadow: 0 4px 20px var(--green-glow); }
.btn-green:hover { transform: translateY(-2px); box-shadow: 0 8px 30px var(--green-glow); }

.btn-sm { padding: 7px 14px; font-size: 13px; }
.btn-lg { padding: 14px 28px; font-size: 16px; }
.btn-icon { padding: 10px; width: 40px; height: 40px; justify-content: center; }
.btn[disabled] { opacity: 0.4; cursor: not-allowed; pointer-events: none; }

/* ── Screen System ── */
.screen { display: none; flex: 1; }
.screen.active { display: flex; }

/* ── Home Screen ── */
#screen-home {
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 40px 20px;
  text-align: center;
  gap: 16px;
}

.home-hero { max-width: 560px; }
.home-hero h1 { font-size: clamp(2rem, 5vw, 3.5rem); line-height: 1.1; margin-bottom: 16px; letter-spacing: -1px; }
.home-hero h1 .highlight {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.home-hero p { font-size: 17px; color: var(--text-2); max-width: 400px; margin: 0 auto 32px; }

.home-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

.home-features {
  display: flex;
  gap: 12px;
  margin-top: 48px;
  flex-wrap: wrap;
  justify-content: center;
  max-width: 700px;
}

.feature-chip {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: 100px;
  font-size: 13px;
  color: var(--text-2);
}

/* ── Connect Screen ── */
#screen-connect {
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 40px 20px;
}

.connect-card {
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 40px;
  max-width: 440px;
  width: 100%;
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow);
}

.connect-card h2 { text-align: center; margin-bottom: 8px; }
.connect-card .subtitle { text-align: center; color: var(--text-2); margin-bottom: 32px; font-size: 15px; }

.tabs {
  display: flex;
  background: var(--bg-2);
  border-radius: var(--radius-sm);
  padding: 4px;
  gap: 4px;
  margin-bottom: 28px;
}

.tab {
  flex: 1;
  padding: 10px;
  border: none;
  background: transparent;
  color: var(--text-2);
  border-radius: 8px;
  cursor: pointer;
  font-family: 'DM Sans', sans-serif;
  font-size: 14px;
  font-weight: 500;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.tab.active { background: var(--bg-3); color: var(--text-0); }
.tab:hover:not(.active) { color: var(--text-1); }

.tab-content { display: none; }
.tab-content.active { display: block; }

/* ── Code Display ── */
.session-code-display {
  text-align: center;
  padding: 24px;
  background: var(--bg-2);
  border-radius: var(--radius);
  margin-bottom: 16px;
}

.code-label { font-size: 12px; text-transform: uppercase; letter-spacing: 2px; color: var(--text-3); margin-bottom: 12px; }

.code-digits {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-bottom: 12px;
}

.code-digit {
  width: 48px;
  height: 56px;
  background: var(--bg-3);
  border: 2px solid var(--accent);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Syne', sans-serif;
  font-size: 24px;
  font-weight: 700;
  color: var(--accent);
  box-shadow: 0 0 12px var(--accent-glow);
  animation: digitPop 0.4s cubic-bezier(0.34,1.56,0.64,1) both;
}

.code-digit:nth-child(1) { animation-delay: 0.05s; }
.code-digit:nth-child(2) { animation-delay: 0.10s; }
.code-digit:nth-child(3) { animation-delay: 0.15s; }
.code-digit:nth-child(4) { animation-delay: 0.20s; }
.code-digit:nth-child(5) { animation-delay: 0.25s; }
.code-digit:nth-child(6) { animation-delay: 0.30s; }

@keyframes digitPop {
  from { opacity: 0; transform: scale(0.5) translateY(10px); }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}

.code-timer { font-size: 12px; color: var(--text-3); }
.code-timer span { color: var(--yellow); }

/* ── QR Code ── */
.qr-container {
  display: flex;
  justify-content: center;
  margin-bottom: 16px;
}

#qr-canvas {
  border-radius: var(--radius-sm);
  background: white;
  padding: 12px;
}

/* ── Form Elements ── */
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 13px; color: var(--text-2); margin-bottom: 6px; font-weight: 500; }

.input-wrap {
  position: relative;
}

.input-wrap .input-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-3);
  font-size: 16px;
  pointer-events: none;
}

input[type="text"],
input[type="number"] {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg-2);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  color: var(--text-0);
  font-family: 'DM Sans', sans-serif;
  font-size: 15px;
  transition: var(--transition);
  outline: none;
}

input[type="text"]:focus,
input[type="number"]:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.code-input {
  text-align: center;
  font-family: 'Syne', sans-serif;
  font-size: 24px !important;
  font-weight: 700 !important;
  letter-spacing: 8px;
  text-transform: uppercase;
  padding: 16px !important;
}

/* ── Transfer Screen ── */
#screen-transfer {
  flex-direction: column;
  padding: 24px;
  gap: 20px;
  max-width: 900px;
  margin: 0 auto;
  width: 100%;
}

.session-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 14px 20px;
  flex-wrap: wrap;
  gap: 12px;
}

.session-info { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }

.status-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 8px var(--green-glow);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%,100% { box-shadow: 0 0 8px var(--green-glow); }
  50%      { box-shadow: 0 0 16px var(--green-glow), 0 0 24px var(--green-glow); }
}

.session-code-badge {
  font-family: 'Syne', sans-serif;
  font-size: 18px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 4px;
  cursor: pointer;
}

.device-count {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--text-2);
  background: var(--bg-2);
  padding: 4px 12px;
  border-radius: 100px;
}

/* ── Drop Zone ── */
.drop-zone {
  border: 2px dashed var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 48px 24px;
  text-align: center;
  transition: var(--transition);
  cursor: pointer;
  position: relative;
  overflow: hidden;
  background: var(--glass);
}

.drop-zone::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--accent-glow) 0%, transparent 100%);
  opacity: 0;
  transition: var(--transition);
}

.drop-zone:hover, .drop-zone.drag-over {
  border-color: var(--accent);
  background: rgba(79,142,247,0.05);
}

.drop-zone:hover::before, .drop-zone.drag-over::before { opacity: 1; }

.drop-zone.drag-over { transform: scale(1.01); }

.drop-icon {
  font-size: 48px;
  margin-bottom: 16px;
  display: block;
  position: relative;
  z-index: 1;
}

.drop-zone h3 {
  font-size: 20px;
  margin-bottom: 8px;
  position: relative;
  z-index: 1;
}

.drop-zone p {
  color: var(--text-2);
  font-size: 14px;
  margin-bottom: 20px;
  position: relative;
  z-index: 1;
}

.drop-types {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: center;
  position: relative;
  z-index: 1;
}

.type-badge {
  padding: 4px 10px;
  background: var(--bg-2);
  border: 1px solid var(--glass-border);
  border-radius: 100px;
  font-size: 11px;
  color: var(--text-3);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

#file-input { display: none; }

/* ── Upload Queue ── */
.upload-queue { display: flex; flex-direction: column; gap: 8px; }

.queue-item {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  animation: slideIn 0.3s ease-out;
}

@keyframes slideIn {
  from { opacity: 0; transform: translateX(-12px); }
  to   { opacity: 1; transform: translateX(0); }
}

.queue-icon {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}

.queue-icon.image      { background: rgba(247,201,79,0.15);  color: #f7c94f; }
.queue-icon.video      { background: rgba(124,94,247,0.15);  color: var(--accent-2); }
.queue-icon.audio      { background: rgba(34,211,160,0.15);  color: var(--green); }
.queue-icon.pdf        { background: rgba(247,95,95,0.15);   color: var(--red); }
.queue-icon.archive    { background: rgba(79,142,247,0.15);  color: var(--accent); }
.queue-icon.document   { background: rgba(79,142,247,0.15);  color: var(--accent); }
.queue-icon.spreadsheet{ background: rgba(34,211,160,0.15);  color: var(--green); }
.queue-icon.presentation{ background: rgba(247,201,79,0.15); color: #f7c94f; }
.queue-icon.text       { background: var(--glass-2);         color: var(--text-2); }
.queue-icon.file       { background: var(--glass-2);         color: var(--text-2); }

.queue-info { flex: 1; min-width: 0; }
.queue-name { font-size: 14px; color: var(--text-0); font-weight: 500; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.queue-meta { font-size: 12px; color: var(--text-3); margin-top: 2px; }

.progress-bar-wrap { height: 3px; background: var(--bg-3); border-radius: 2px; margin-top: 6px; overflow: hidden; }
.progress-bar { height: 100%; background: linear-gradient(90deg, var(--accent), var(--accent-2)); border-radius: 2px; transition: width 0.3s ease; width: 0%; }

.queue-status {
  font-size: 12px;
  padding: 3px 10px;
  border-radius: 100px;
  font-weight: 500;
  flex-shrink: 0;
}
.queue-status.uploading  { background: rgba(79,142,247,0.15); color: var(--accent); }
.queue-status.ready      { background: rgba(34,211,160,0.15); color: var(--green); }
.queue-status.downloaded { background: rgba(124,94,247,0.15); color: var(--accent-2); }
.queue-status.error      { background: rgba(247,95,95,0.15);  color: var(--red); }

/* ── Files Section ── */
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.section-title {
  font-family: 'Syne', sans-serif;
  font-size: 16px;
  font-weight: 700;
  color: var(--text-0);
  display: flex;
  align-items: center;
  gap: 8px;
}

.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 20px;
  height: 20px;
  padding: 0 6px;
  background: var(--accent);
  color: white;
  border-radius: 100px;
  font-size: 11px;
  font-weight: 700;
}

.files-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 12px;
}

.file-card {
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: var(--transition);
  animation: cardIn 0.4s cubic-bezier(0.34,1.56,0.64,1) both;
  position: relative;
  overflow: hidden;
}

@keyframes cardIn {
  from { opacity: 0; transform: scale(0.9) translateY(10px); }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}

.file-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.3);
}

.file-card-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
}

.file-card-name {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-0);
  word-break: break-word;
  line-height: 1.4;
}

.file-card-meta {
  font-size: 11px;
  color: var(--text-3);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.file-card-actions { margin-top: auto; }

/* ── Notifications ── */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  z-index: 9999;
  max-width: 340px;
  width: calc(100vw - 48px);
}

.toast {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 18px;
  background: var(--bg-2);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  animation: toastIn 0.4s cubic-bezier(0.34,1.56,0.64,1);
  backdrop-filter: blur(20px);
}

@keyframes toastIn {
  from { opacity: 0; transform: translateX(50px) scale(0.9); }
  to   { opacity: 1; transform: translateX(0) scale(1); }
}

.toast.hide {
  animation: toastOut 0.3s ease forwards;
}

@keyframes toastOut {
  to { opacity: 0; transform: translateX(50px); }
}

.toast-icon { font-size: 18px; flex-shrink: 0; margin-top: 1px; }
.toast-success { border-left: 3px solid var(--green); }
.toast-success .toast-icon { color: var(--green); }
.toast-error   { border-left: 3px solid var(--red); }
.toast-error   .toast-icon { color: var(--red); }
.toast-info    { border-left: 3px solid var(--accent); }
.toast-info    .toast-icon { color: var(--accent); }
.toast-warn    { border-left: 3px solid var(--yellow); }
.toast-warn    .toast-icon { color: var(--yellow); }

.toast-body {}
.toast-title { font-size: 14px; font-weight: 600; color: var(--text-0); }
.toast-msg   { font-size: 13px; color: var(--text-2); margin-top: 2px; }

/* ── Modal ── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(8px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 500;
  padding: 20px;
}

.modal-overlay.active { display: flex; }

.modal {
  background: var(--bg-1);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  max-width: 420px;
  width: 100%;
  box-shadow: var(--shadow);
  animation: modalIn 0.4s cubic-bezier(0.34,1.56,0.64,1);
}

@keyframes modalIn {
  from { opacity: 0; transform: scale(0.9) translateY(20px); }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}

.modal h3 { margin-bottom: 8px; }
.modal p  { color: var(--text-2); font-size: 14px; margin-bottom: 20px; }
.modal-actions { display: flex; gap: 10px; justify-content: flex-end; }

/* ── Empty State ── */
.empty-state {
  text-align: center;
  padding: 40px 20px;
  color: var(--text-3);
}
.empty-state .empty-icon { font-size: 40px; margin-bottom: 12px; opacity: 0.5; }
.empty-state p { font-size: 14px; }

/* ── Loading spinner ── */
.spinner {
  width: 20px;
  height: 20px;
  border: 2px solid rgba(255,255,255,0.2);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  display: inline-block;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* ── Divider ── */
.divider {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-3);
  font-size: 12px;
  margin: 16px 0;
}
.divider::before, .divider::after { content: ''; flex: 1; height: 1px; background: var(--glass-border); }

/* ── Countdown Timer ── */
.timer-ring {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-size: 13px;
  color: var(--text-3);
  padding: 6px 12px;
  background: var(--bg-2);
  border-radius: 100px;
}

/* ── Waiting animation ── */
.waiting-pulse {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 16px;
  color: var(--text-2);
  font-size: 14px;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  animation: bounceDot 1.2s infinite ease-in-out;
}
.pulse-dot:nth-child(2) { animation-delay: 0.2s; }
.pulse-dot:nth-child(3) { animation-delay: 0.4s; }

@keyframes bounceDot {
  0%,80%,100% { transform: scale(0.6); opacity: 0.4; }
  40% { transform: scale(1); opacity: 1; }
}

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--bg-3); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-3); }

/* ── Responsive ── */
@media (max-width: 768px) {
  .header { padding: 14px 16px; }
  .logo-text { font-size: 18px; }
  #screen-home { padding: 24px 16px; }
  .home-hero h1 { font-size: 2rem; }
  .connect-card { padding: 24px 20px; }
  #screen-transfer { padding: 16px; gap: 14px; }
  .session-bar { padding: 10px 14px; }
  .files-grid { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 10px; }
  .drop-zone { padding: 32px 16px; }
  .toast-container { bottom: 16px; right: 16px; left: 16px; max-width: none; width: auto; }
  .code-digit { width: 42px; height: 50px; font-size: 22px; }
}

@media (max-width: 480px) {
  .header { padding: 12px 14px; }
  .home-actions { flex-direction: column; align-items: stretch; }
  .home-actions .btn { justify-content: center; }
  .session-bar { flex-direction: column; align-items: flex-start; }
  .files-grid { grid-template-columns: 1fr 1fr; }
  .code-digits { gap: 5px; }
  .code-digit { width: 40px; height: 48px; font-size: 20px; }
  .modal { padding: 24px 16px; }
  .drop-zone { padding: 24px 12px; }
  .drop-icon { font-size: 36px; }
}

@media (min-width: 1200px) {
  #screen-transfer { max-width: 1000px; }
  .files-grid { grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); }
}