/* IMG Alt Gen Pro — Web App
   Dark theme, purple accent, responsive. Inspired by the WordPress plugin
   admin styles and the imgaltgen.com brand palette. */

:root {
  --bg:        #0b0f1a;
  --bg-2:      #0f172a;
  --surface:   #111827;
  --surface-2: #1a2238;
  --border:    #25304a;
  --border-2:  #2f3a55;
  --text:      #f1f5f9;
  --text-dim:  #94a3b8;
  --text-mute: #64748b;
  --primary:   #9600f4;
  --primary-2: #b347ff;
  --primary-soft: rgba(150, 0, 244, 0.12);
  --success:   #10b981;
  --warn:      #f59e0b;
  --danger:    #ef4444;
  --info:      #3b82f6;
  --radius:    12px;
  --radius-sm: 8px;
  --shadow:    0 10px 30px rgba(0, 0, 0, 0.35);
}

* { box-sizing: border-box; }
html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue",
               Arial, "Noto Sans", sans-serif;
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}
a { color: var(--primary-2); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; display: block; }
button { font: inherit; cursor: pointer; }
input, select, textarea { font: inherit; color: inherit; }
h1, h2, h3, h4 { margin: 0 0 .6em; color: #fff; line-height: 1.25; font-weight: 600; }
h1 { font-size: 1.7rem; }
h2 { font-size: 1.3rem; }
h3 { font-size: 1.1rem; }
p  { margin: 0 0 .8em; }

/* ---------- Layout ---------- */
.topbar {
  background: linear-gradient(180deg, #0e1426 0%, #0b0f1a 100%);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 50;
}
.topbar-inner {
  max-width: 1240px; margin: 0 auto;
  padding: 14px 20px;
  display: flex; align-items: center; gap: 18px;
}
.brand {
  display: flex; align-items: center; gap: 10px;
  font-weight: 700; color: #fff; font-size: 1.05rem;
  letter-spacing: -.01em;
}
.brand .logo {
  width: 32px; height: 32px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-2) 100%);
  border-radius: 8px; display: grid; place-items: center;
  color: #fff; font-weight: 800;
  box-shadow: 0 4px 12px rgba(150, 0, 244, .4);
}
.nav {
  display: flex; gap: 4px; margin-left: 12px;
  flex: 1; flex-wrap: wrap;
}
.nav a {
  padding: 7px 12px; border-radius: 8px; color: var(--text-dim);
  font-size: .92rem; font-weight: 500;
}
.nav a:hover { color: #fff; background: var(--surface); text-decoration: none; }
.nav a.active { color: #fff; background: var(--primary-soft); }
.nav-burger {
  display: none; background: none; border: 1px solid var(--border);
  color: var(--text); width: 38px; height: 38px; border-radius: 8px;
  margin-left: auto;
}
.nav-right { display: flex; align-items: center; gap: 12px; }
.balance-pill {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--primary-soft);
  border: 1px solid rgba(150, 0, 244, .35);
  color: #fff; padding: 6px 12px; border-radius: 999px;
  font-weight: 600; font-size: .9rem;
}
.balance-pill .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--primary-2); }
.balance-pill.low { background: rgba(245, 158, 11, .15); border-color: rgba(245, 158, 11, .4); }
.balance-pill.low .dot { background: var(--warn); }

main {
  max-width: 1240px; margin: 0 auto; padding: 28px 20px 64px;
}

/* ---------- Cards & forms ---------- */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
}
.card + .card { margin-top: 20px; }
.card h2 { margin-bottom: 6px; }
.card .subtitle { color: var(--text-dim); margin-bottom: 18px; }

.row { display: grid; gap: 16px; }
.row.cols-2 { grid-template-columns: 1fr 1fr; }
.row.cols-3 { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 720px) {
  .row.cols-2, .row.cols-3 { grid-template-columns: 1fr; }
}

.field { display: flex; flex-direction: column; gap: 6px; }
.field label {
  font-size: .85rem; color: var(--text-dim); font-weight: 500;
}
.field .hint { font-size: .8rem; color: var(--text-mute); }
.field input[type=text],
.field input[type=email],
.field input[type=password],
.field input[type=number],
.field select,
.field textarea {
  background: var(--bg-2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  outline: none;
  transition: border-color .15s, box-shadow .15s;
  width: 100%;
}
.field textarea { min-height: 80px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus {
  border-color: var(--primary-2);
  box-shadow: 0 0 0 3px rgba(179, 71, 255, 0.18);
}

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 10px 18px; border-radius: var(--radius-sm);
  border: 1px solid transparent;
  background: var(--surface-2); color: var(--text);
  font-weight: 600; font-size: .95rem;
  transition: transform .05s, background .15s, border-color .15s;
}
.btn:hover { background: #233054; }
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-2) 100%);
  color: #fff;
  box-shadow: 0 6px 20px rgba(150, 0, 244, .35);
}
.btn-primary:hover { background: linear-gradient(135deg, #a512ff 0%, #c163ff 100%); }
.btn-ghost { background: transparent; border-color: var(--border-2); color: var(--text-dim); }
.btn-ghost:hover { color: #fff; background: var(--surface-2); }
.btn-danger { background: rgba(239, 68, 68, .12); color: #fca5a5; border-color: rgba(239, 68, 68, .35); }
.btn-danger:hover { background: rgba(239, 68, 68, .2); color: #fff; }
.btn-sm { padding: 6px 12px; font-size: .85rem; }

/* Auth pages */
.auth-page {
  min-height: 100vh;
  display: grid; place-items: center; padding: 40px 20px;
  background:
    radial-gradient(circle at 20% 0%, rgba(150, 0, 244, 0.18), transparent 50%),
    radial-gradient(circle at 80% 100%, rgba(59, 130, 246, 0.12), transparent 50%),
    var(--bg);
}
.auth-card {
  width: 100%; max-width: 420px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px;
  box-shadow: var(--shadow);
}
.auth-card .brand { justify-content: center; margin-bottom: 20px; font-size: 1.1rem; }
.auth-card h1 { font-size: 1.4rem; text-align: center; margin-bottom: 6px; }
.auth-card .subtitle { color: var(--text-dim); text-align: center; margin-bottom: 24px; }
.auth-card .form-actions { margin-top: 8px; }
.auth-card .btn { width: 100%; }
.auth-footer { text-align: center; margin-top: 18px; color: var(--text-dim); font-size: .9rem; }

/* Alerts */
.alert {
  padding: 12px 14px; border-radius: var(--radius-sm); margin: 0 0 14px;
  font-size: .9rem; border: 1px solid transparent;
}
.alert-error   { background: rgba(239, 68, 68, .1);  border-color: rgba(239, 68, 68, .35); color: #fecaca; }
.alert-success { background: rgba(16, 185, 129, .1); border-color: rgba(16, 185, 129, .35); color: #a7f3d0; }
.alert-info    { background: rgba(59, 130, 246, .1); border-color: rgba(59, 130, 246, .35); color: #bfdbfe; }
.alert-warn    { background: rgba(245, 158, 11, .1); border-color: rgba(245, 158, 11, .4);  color: #fde68a; }

/* Toast */
.toast-stack {
  position: fixed; bottom: 20px; right: 20px; z-index: 100;
  display: flex; flex-direction: column; gap: 8px; pointer-events: none;
}
.toast {
  pointer-events: auto;
  background: var(--surface);
  border: 1px solid var(--border-2);
  color: var(--text);
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  font-size: .9rem;
  min-width: 220px; max-width: 380px;
  box-shadow: var(--shadow);
  animation: toast-in .2s ease-out;
}
.toast.error  { border-color: rgba(239, 68, 68, .5); }
.toast.success{ border-color: rgba(16, 185, 129, .5); }
@keyframes toast-in { from { transform: translateY(8px); opacity: 0; } to { transform: none; opacity: 1; } }

/* Drop zone */
.dropzone {
  border: 2px dashed var(--border-2);
  border-radius: var(--radius);
  padding: 48px 24px;
  text-align: center;
  transition: background .15s, border-color .15s;
  background: rgba(150, 0, 244, .03);
  cursor: pointer;
}
.dropzone:hover, .dropzone.dragover {
  border-color: var(--primary-2);
  background: var(--primary-soft);
}
.dropzone-icon {
  width: 56px; height: 56px; margin: 0 auto 12px;
  background: var(--surface-2); border-radius: 50%;
  display: grid; place-items: center; font-size: 28px;
}
.dropzone strong { color: #fff; font-size: 1.05rem; }
.dropzone .hint { display: block; color: var(--text-dim); font-size: .85rem; margin-top: 4px; }

/* Image grid */
.image-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 16px;
  margin-top: 20px;
}
.image-card {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex; flex-direction: column;
}
.image-card .thumb {
  aspect-ratio: 16 / 10;
  background: #000;
  display: grid; place-items: center;
  overflow: hidden;
}
.image-card .thumb img {
  width: 100%; height: 100%; object-fit: cover;
}
.image-card .body { padding: 12px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.image-card .filename {
  font-size: .82rem; color: var(--text-dim);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.image-card .alt-text {
  width: 100%; min-height: 70px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text); padding: 8px 10px;
  font-size: .9rem; resize: vertical;
}
.image-card .alt-text:focus { border-color: var(--primary-2); outline: none; }
.image-card .row-btns { display: flex; gap: 6px; flex-wrap: wrap; }
.image-card .status {
  font-size: .78rem; padding: 3px 8px; border-radius: 999px;
  align-self: flex-start;
}
.status.queued    { background: rgba(100, 116, 139, .25); color: var(--text-dim); }
.status.processing{ background: rgba(59, 130, 246, .2);   color: #bfdbfe; }
.status.done      { background: rgba(16, 185, 129, .2);   color: #a7f3d0; }
.status.error     { background: rgba(239, 68, 68, .2);    color: #fca5a5; }

/* Tables */
.table-wrap { overflow-x: auto; border-radius: var(--radius); border: 1px solid var(--border); }
table.data {
  width: 100%; border-collapse: collapse; background: var(--surface);
  font-size: .9rem;
}
table.data th, table.data td {
  text-align: left; padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
table.data th { color: var(--text-dim); font-weight: 600; font-size: .8rem; text-transform: uppercase; letter-spacing: .03em; background: var(--bg-2); }
table.data tr:last-child td { border-bottom: 0; }
table.data tr:hover td { background: rgba(255, 255, 255, .015); }
table.data .truncate { max-width: 280px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* Packages */
.packages {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 16px;
}
.package {
  border: 2px solid var(--border-2);
  border-radius: var(--radius);
  background: var(--bg-2);
  padding: 22px 18px 18px;
  text-align: center; position: relative;
  display: flex; flex-direction: column; gap: 10px;
  transition: transform .12s, border-color .15s, box-shadow .15s;
}
.package:hover {
  border-color: var(--primary);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(150, 0, 244, .15);
}
.package.popular { border-color: var(--primary); }
.package.popular::before {
  content: "MOST POPULAR";
  position: absolute; top: -10px; left: 50%; transform: translateX(-50%);
  background: var(--primary); color: #fff;
  font-size: .7rem; font-weight: 700; padding: 3px 10px; border-radius: 999px;
  letter-spacing: .05em;
}
.package .name { color: var(--text-dim); font-size: .85rem; text-transform: uppercase; letter-spacing: .05em; }
.package .price { font-size: 1.8rem; color: #fff; font-weight: 700; }
.package .tokens { color: #fff; font-size: 1rem; }
.package .per { color: var(--text-mute); font-size: .8rem; }
.package .btn { margin-top: auto; }

/* Misc */
.muted { color: var(--text-dim); }
.center { text-align: center; }
.spacer { height: 16px; }
.divider { height: 1px; background: var(--border); margin: 18px 0; border: 0; }

.spinner {
  width: 16px; height: 16px;
  border: 2px solid rgba(255, 255, 255, .25);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin .7s linear infinite;
  display: inline-block;
}
@keyframes spin { to { transform: rotate(360deg); } }

.empty {
  text-align: center; color: var(--text-dim);
  padding: 40px 20px;
}

.tab-bar { display: flex; gap: 4px; border-bottom: 1px solid var(--border); margin-bottom: 18px; }
.tab-bar button {
  background: none; border: 0; color: var(--text-dim);
  padding: 10px 16px; font-weight: 500;
  border-bottom: 2px solid transparent;
}
.tab-bar button.active { color: #fff; border-bottom-color: var(--primary-2); }

.kbd {
  display: inline-block; padding: 1px 6px; border: 1px solid var(--border-2);
  border-radius: 4px; background: var(--bg-2); font-size: .8rem; color: var(--text-dim);
}

/* Mobile nav */
@media (max-width: 820px) {
  .nav-burger { display: inline-grid; place-items: center; }
  .nav {
    display: none; position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; gap: 0;
    background: var(--surface); border-bottom: 1px solid var(--border);
    padding: 8px;
  }
  .nav.open { display: flex; }
  .nav a { padding: 12px; border-radius: 6px; }
  .topbar-inner { position: relative; }
  .nav-right { margin-left: auto; }
}

@media (max-width: 480px) {
  main { padding: 18px 14px 48px; }
  .card { padding: 18px; }
  .auth-card { padding: 24px; }
  h1 { font-size: 1.4rem; }
}