/* ── Variables ─────────────────────────────────────────────────────────── */
:root {
  --bg:          #08080f;
  --surface:     #0e0e1c;
  --card:        #121220;
  --card-hover:  #14142a;
  --border:      rgba(255,255,255,0.07);
  --border-focus:rgba(124,106,247,0.6);
  --purple:      #7c6af7;
  --purple-dim:  rgba(124,106,247,0.15);
  --text:        #e2e2f0;
  --muted:       #6868a0;
  --success:     #22d4a0;
  --error:       #ff6b6b;
  --radius:      14px;
  --radius-sm:   8px;
  --transition:  .22s cubic-bezier(.4,0,.2,1);
}

/* ── Reset ─────────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 15px; }
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.6;
  overflow-x: hidden;
}

/* ── Background grid ───────────────────────────────────────────────────── */
.bg-grid {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(124,106,247,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(124,106,247,.04) 1px, transparent 1px);
  background-size: 40px 40px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, black 40%, transparent 100%);
}

/* ── Header ────────────────────────────────────────────────────────────── */
header {
  position: relative; z-index: 1;
  padding: 2.5rem 2rem 1.5rem;
  text-align: center;
}
.header-inner { display: inline-flex; flex-direction: column; align-items: center; gap: .4rem; }

.logo {
  display: flex; align-items: center; gap: .6rem;
  font-size: 1.7rem; font-weight: 700; letter-spacing: -.03em;
  background: linear-gradient(135deg, #c4b8ff 0%, var(--purple) 60%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.logo-icon { width: 32px; height: 32px; stroke: var(--purple); flex-shrink: 0; }

.tagline { font-size: .78rem; color: var(--muted); letter-spacing: .04em; font-weight: 400; }

/* ── Main / Cards grid ─────────────────────────────────────────────────── */
main { position: relative; z-index: 1; padding: 1rem 1.5rem 4rem; }

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.25rem;
  max-width: 1080px;
  margin: 0 auto;
}

/* ── Card ──────────────────────────────────────────────────────────────── */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  opacity: 0;
  animation: card-in .5s cubic-bezier(.22,1,.36,1) forwards;
  animation-delay: var(--delay, 0ms);
}
.card:hover {
  transform: translateY(-3px);
  border-color: rgba(124,106,247,.2);
  box-shadow: 0 16px 48px rgba(0,0,0,.4), 0 0 0 1px rgba(124,106,247,.08);
}

/* colored accent bar at top */
.card-bar {
  height: 3px;
  background: var(--accent, var(--purple));
  opacity: .85;
}

.card-inner { padding: 1.4rem 1.4rem 1.5rem; display: flex; flex-direction: column; gap: 1rem; }

/* ── Card header ───────────────────────────────────────────────────────── */
.card-head { display: flex; align-items: center; gap: .85rem; }

.card-icon {
  display: flex; align-items: center; justify-content: center;
  width: 42px; height: 42px; flex-shrink: 0;
  background: var(--purple-dim);
  border-radius: var(--radius-sm);
  color: var(--accent, var(--purple));
  transition: background var(--transition);
}
.card:hover .card-icon { background: rgba(124,106,247,.22); }
.card-icon svg { width: 20px; height: 20px; }

.card-head h2 { font-size: 1.05rem; font-weight: 600; line-height: 1.2; }
.card-head p  { font-size: .75rem; color: var(--muted); margin-top: .1rem; }

/* ── URL input ─────────────────────────────────────────────────────────── */
.url-field {
  display: flex; gap: .45rem; align-items: center;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0 .5rem 0 0;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.url-field:focus-within {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(124,106,247,.12);
}
.text-input {
  flex: 1; background: transparent; border: none; outline: none;
  color: var(--text); font-family: inherit; font-size: .85rem;
  padding: .7rem .75rem;
  caret-color: var(--purple);
}
.text-input::placeholder { color: var(--muted); }

.paste-btn {
  display: flex; align-items: center; justify-content: center;
  width: 30px; height: 30px; flex-shrink: 0;
  background: transparent; border: none; cursor: pointer;
  color: var(--muted); border-radius: 6px;
  transition: color var(--transition), background var(--transition);
}
.paste-btn:hover { color: var(--purple); background: var(--purple-dim); }
.paste-btn svg { width: 15px; height: 15px; }

/* ── Dropzone ──────────────────────────────────────────────────────────── */
.dropzone {
  display: flex; align-items: center; justify-content: center;
  border: 1.5px dashed var(--border);
  border-radius: var(--radius-sm);
  padding: 1.5rem 1rem;
  cursor: pointer;
  transition: border-color var(--transition), background var(--transition);
  min-height: 110px;
  position: relative;
}
.dropzone:hover, .dropzone.drag-over {
  border-color: var(--accent, var(--purple));
  background: rgba(124,106,247,.05);
}
.dropzone.drag-over { background: rgba(124,106,247,.1); }

.drop-idle {
  display: flex; flex-direction: column; align-items: center; gap: .5rem;
  text-align: center; pointer-events: none;
}
.drop-idle svg { width: 28px; height: 28px; color: var(--muted); opacity: .7; }
.drop-idle p   { font-size: .82rem; color: var(--muted); }
.drop-idle p strong { color: var(--text); font-weight: 500; }
.drop-idle span { font-size: .72rem; color: var(--muted); opacity: .6; }

.drop-selected {
  display: flex; align-items: center; gap: .6rem;
  font-size: .82rem; color: var(--success);
}
.drop-selected svg { width: 18px; height: 18px; flex-shrink: 0; }
.drop-selected span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 180px; }

.clear-file {
  background: transparent; border: none; cursor: pointer;
  color: var(--muted); font-size: .85rem; padding: .15rem .3rem;
  border-radius: 4px; line-height: 1;
  transition: color var(--transition), background var(--transition);
  margin-left: auto; flex-shrink: 0;
}
.clear-file:hover { color: var(--error); background: rgba(255,107,107,.1); }

/* ── Submit button ─────────────────────────────────────────────────────── */
.submit-btn {
  display: flex; align-items: center; justify-content: center; gap: .5rem;
  width: 100%; padding: .72rem 1rem;
  background: linear-gradient(135deg, var(--accent, var(--purple)) 0%, color-mix(in srgb, var(--accent, var(--purple)) 70%, #fff) 100%);
  border: none; border-radius: var(--radius-sm);
  color: #fff; font-family: inherit; font-size: .88rem; font-weight: 600;
  cursor: pointer; position: relative; overflow: hidden;
  transition: opacity var(--transition), transform var(--transition), box-shadow var(--transition);
}
.submit-btn:hover:not(:disabled) {
  opacity: .92; transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(0,0,0,.3);
}
.submit-btn:active:not(:disabled) { transform: translateY(0); }
.submit-btn:disabled { opacity: .45; cursor: not-allowed; transform: none; }

.btn-icon { width: 15px; height: 15px; flex-shrink: 0; }

/* waveform bars inside button */
.btn-waves {
  display: inline-flex; align-items: center; gap: 2.5px;
  height: 16px; flex-shrink: 0;
}
.btn-waves span {
  display: block; width: 3px;
  background: rgba(255,255,255,.9);
  border-radius: 2px;
  animation: wave-bar .85s ease-in-out infinite;
}
.btn-waves span:nth-child(1) { animation-delay: 0s; }
.btn-waves span:nth-child(2) { animation-delay: .17s; }
.btn-waves span:nth-child(3) { animation-delay: .34s; }

/* ── Feedback / status ─────────────────────────────────────────────────── */
.feedback {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: .8rem 1rem;
}
.status-row { display: flex; align-items: center; gap: .65rem; font-size: .82rem; color: var(--muted); }

/* scanning track — reads as "waiting", not "processing" */
.status-track {
  width: 32px; height: 3px; flex-shrink: 0;
  background: var(--border);
  border-radius: 99px;
  overflow: hidden;
  position: relative;
}
.status-track::after {
  content: '';
  position: absolute; inset: 0;
  background: var(--accent, var(--purple));
  border-radius: 99px;
  animation: track-scan 1.8s ease-in-out infinite;
}

.status-msg { transition: opacity .3s; }

/* ── Upload progress ───────────────────────────────────────────────────── */
.upload-progress {
  display: flex; align-items: center; gap: .65rem;
  font-size: .82rem;
}
.uprog-label { color: var(--muted); white-space: nowrap; }
.uprog-bar {
  flex: 1; height: 4px;
  background: rgba(255,255,255,.08);
  border-radius: 99px; overflow: hidden;
}
.uprog-fill {
  height: 100%;
  background: var(--accent, var(--purple));
  border-radius: 99px;
  width: 0%;
  transition: width .15s linear;
}
.uprog-pct {
  color: var(--muted); min-width: 34px;
  text-align: right; font-variant-numeric: tabular-nums;
}

/* ── Result ────────────────────────────────────────────────────────────── */
.result {
  display: flex; flex-direction: column; gap: .85rem;
  animation: slide-up .35s cubic-bezier(.22,1,.36,1) forwards;
}

.result-meta {
  display: flex; flex-wrap: wrap; gap: .4rem; align-items: center;
  font-size: .73rem;
}
.badge {
  display: inline-flex; align-items: center; padding: .2rem .55rem;
  border-radius: 100px; font-weight: 600; font-size: .72rem; letter-spacing: .02em;
}
.badge.success { background: rgba(34,212,160,.12); color: var(--success); }
.meta-tag {
  background: var(--surface); border: 1px solid var(--border);
  color: var(--muted); padding: .2rem .55rem; border-radius: 100px;
}

.result-text {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: .9rem 1rem;
  font-size: .83rem; line-height: 1.75;
  max-height: 260px; overflow-y: auto;
  white-space: pre-wrap; word-break: break-word;
  scrollbar-width: thin; scrollbar-color: var(--border) transparent;
}
.result-text::-webkit-scrollbar { width: 5px; }
.result-text::-webkit-scrollbar-track { background: transparent; }
.result-text::-webkit-scrollbar-thumb { background: var(--border); border-radius: 10px; }

.result-actions { display: flex; gap: .5rem; }

.action {
  display: inline-flex; align-items: center; gap: .4rem;
  padding: .5rem .9rem;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--muted); font-family: inherit; font-size: .78rem; font-weight: 500;
  cursor: pointer;
  transition: color var(--transition), border-color var(--transition), background var(--transition), transform var(--transition);
}
.action:hover { color: var(--text); border-color: rgba(255,255,255,.15); background: var(--card-hover); transform: translateY(-1px); }
.action svg { width: 13px; height: 13px; }

/* ── Error box ─────────────────────────────────────────────────────────── */
.error-box {
  display: flex; align-items: flex-start; gap: .6rem;
  padding: .8rem 1rem;
  background: rgba(255,107,107,.08);
  border: 1px solid rgba(255,107,107,.2);
  border-radius: var(--radius-sm);
  color: var(--error); font-size: .8rem; line-height: 1.5;
}
.error-box svg { width: 16px; height: 16px; flex-shrink: 0; margin-top: .1rem; }

/* ── Toast ─────────────────────────────────────────────────────────────── */
.toast {
  position: fixed; bottom: 2rem; left: 50%; transform: translateX(-50%) translateY(10px);
  background: var(--success); color: #000;
  font-size: .82rem; font-weight: 600;
  padding: .55rem 1.2rem; border-radius: 100px;
  opacity: 0; transition: opacity .25s, transform .25s;
  pointer-events: none; z-index: 100;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ── Utility ───────────────────────────────────────────────────────────── */
.hidden { display: none !important; }

/* ── Animations ────────────────────────────────────────────────────────── */
@keyframes card-in {
  from { opacity: 0; transform: translateY(22px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes slide-up {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes wave-bar {
  0%, 100% { height: 3px; }
  50%       { height: 14px; }
}
@keyframes track-scan {
  0%   { transform: translateX(-100%); }
  50%  { transform: translateX(0%); }
  100% { transform: translateX(100%); }
}

/* ── Responsive ────────────────────────────────────────────────────────── */
@media (max-width: 680px) {
  header { padding: 2rem 1rem 1.2rem; }
  main   { padding: .5rem 1rem 3rem; }
  .cards { grid-template-columns: 1fr; gap: 1rem; }
}