@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #07080d;
  --bg-soft: #0b0d14;
  --surface: rgba(17, 20, 31, 0.82);
  --surface-2: rgba(24, 28, 42, 0.9);
  --sidebar: rgba(11, 13, 20, 0.92);
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.15);
  --text: #f8fafc;
  --text-soft: #cbd5e1;
  --text-muted: #7c8798;
  --primary: #8b5cf6;
  --primary-2: #ec4899;
  --primary-soft: rgba(139, 92, 246, 0.16);
  --success: #22c55e;
  --danger: #fb7185;
  --danger-soft: rgba(251, 113, 133, 0.13);
  --radius-sm: 12px;
  --radius: 18px;
  --radius-lg: 26px;
  --shadow: 0 18px 55px rgba(0, 0, 0, 0.38);
  --shadow-soft: 0 10px 30px rgba(0, 0, 0, 0.24);
  --sidebar-w: 280px;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

html { scroll-behavior: smooth; }
body {
  min-height: 100vh;
  font-family: var(--font);
  color: var(--text);
  background:
    radial-gradient(circle at 20% -10%, rgba(139, 92, 246, .28), transparent 32rem),
    radial-gradient(circle at 95% 8%, rgba(236, 72, 153, .18), transparent 30rem),
    linear-gradient(135deg, #07080d, #0a0c13 48%, #07080d);
  -webkit-font-smoothing: antialiased;
  line-height: 1.5;
}

a { color: #c4b5fd; text-decoration: none; transition: .2s ease; }
a:hover { color: #fff; }
button, input, select { font: inherit; }

.app { display: flex; min-height: 100vh; }
.sidebar {
  position: fixed; inset: 0 auto 0 0; z-index: 50;
  width: var(--sidebar-w);
  padding: 22px 16px;
  display: flex; flex-direction: column;
  background: linear-gradient(180deg, rgba(12,14,22,.94), rgba(8,10,16,.92));
  border-right: 1px solid var(--border);
  backdrop-filter: blur(22px);
  box-shadow: 18px 0 60px rgba(0,0,0,.22);
}
.brand { display: flex; align-items: center; gap: 13px; padding: 6px 8px 24px; }
.brand-icon {
  width: 48px; height: 48px; border-radius: 16px;
  display: grid; place-items: center;
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  color: #fff; font-weight: 800; letter-spacing: -.04em;
  box-shadow: 0 12px 34px rgba(139,92,246,.35);
}
.brand-text strong { display:block; font-size: 1.05rem; letter-spacing: -.02em; }
.brand-text span, .nav-label { color: var(--text-muted); font-size: .72rem; text-transform: uppercase; letter-spacing: .09em; font-weight: 700; }
.nav-label { padding: 12px 12px 8px; }
.side-nav { display:flex; flex-direction:column; gap: 7px; flex: 1; }
.side-nav a {
  display:flex; align-items:center; gap: 11px;
  padding: 11px 13px; border-radius: 14px;
  color: var(--text-soft); font-weight: 650; font-size: .92rem;
  border: 1px solid transparent;
}
.side-nav a svg { width: 20px; height: 20px; opacity: .72; }
.side-nav a:hover { background: rgba(255,255,255,.055); color: #fff; transform: translateX(2px); }
.side-nav a.active {
  color:#fff; background: linear-gradient(135deg, rgba(139,92,246,.24), rgba(236,72,153,.12));
  border-color: rgba(139,92,246,.36);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.08), 0 10px 26px rgba(0,0,0,.18);
}
.side-nav a.active svg { opacity: 1; color: #d8b4fe; }
.side-nav a.nav-cta {
  margin-top: 10px; justify-content: center; color:#fff !important;
  background: linear-gradient(135deg, #8b5cf6, #d946ef);
  box-shadow: 0 14px 34px rgba(139,92,246,.28);
}
.side-nav a.nav-cta:hover { transform: translateY(-2px); }
.sidebar-foot { margin-top:auto; padding-top: 16px; border-top: 1px solid var(--border); }
.user-pill { display:flex; gap:10px; align-items:center; padding: 10px; border-radius: 16px; background: rgba(255,255,255,.045); border:1px solid var(--border); margin-bottom: 9px; }
.user-avatar { width:38px; height:38px; border-radius: 13px; display:grid; place-items:center; background: rgba(139,92,246,.2); font-weight:800; font-size:.78rem; }
.user-pill small { display:block; color:var(--text-muted); font-size:.72rem; }
.logout-link { display:flex; gap:8px; align-items:center; padding:10px 12px; color:var(--text-muted); border-radius:14px; font-weight:650; font-size:.86rem; }
.logout-link:hover { background: var(--danger-soft); color:#fecdd3; }

.main { flex:1; margin-left: var(--sidebar-w); min-height:100vh; position:relative; }
.main-bg { position:fixed; inset:0 0 0 var(--sidebar-w); pointer-events:none; background: radial-gradient(circle at 50% 0%, rgba(139,92,246,.12), transparent 32rem); }
.main-inner { position:relative; z-index:1; width:min(1240px, 100%); padding: 34px 38px 52px; }
.page-header { display:flex; justify-content:space-between; align-items:flex-end; gap:20px; margin-bottom:28px; flex-wrap:wrap; }
.page-header h1 { font-size: clamp(1.7rem, 3vw, 2.35rem); letter-spacing:-.045em; line-height:1.08; }
.page-header p { color: var(--text-muted); margin-top:8px; max-width:560px; font-weight:500; }
.page-actions { display:flex; gap:10px; flex-wrap:wrap; }

.btn {
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  min-height:42px; padding: 10px 16px; border:0; border-radius: 13px;
  font-weight:750; font-size:.9rem; cursor:pointer; white-space:nowrap;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease, border-color .18s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { color:#fff; background: linear-gradient(135deg, #8b5cf6, #d946ef); box-shadow: 0 12px 28px rgba(139,92,246,.28); }
.btn-ghost { color: var(--text); background: rgba(255,255,255,.055); border:1px solid var(--border); }
.btn-ghost:hover { border-color: var(--border-strong); background: rgba(255,255,255,.09); }
.btn-danger { color:#fecdd3; background: var(--danger-soft); border:1px solid rgba(251,113,133,.25); }
.btn-sm { min-height:34px; padding: 7px 11px; font-size:.78rem; }
.btn:disabled { opacity:.55; cursor:not-allowed; transform:none; }

.stats { display:grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap:16px; margin-bottom:30px; }
.stat-card, .card, .api-box, .cat-row {
  background: linear-gradient(180deg, rgba(255,255,255,.058), rgba(255,255,255,.035));
  border: 1px solid var(--border);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(18px);
}
.stat-card { position:relative; overflow:hidden; border-radius: var(--radius-lg); padding: 22px; }
.stat-card::after { content:''; position:absolute; right:-30px; top:-30px; width:110px; height:110px; border-radius:999px; background: var(--primary-soft); filter: blur(2px); }
.stat-icon { width:44px; height:44px; display:grid; place-items:center; border-radius:15px; background: rgba(139,92,246,.16); margin-bottom:18px; font-size:1.15rem; }
.stat-card strong { display:block; font-size:2.35rem; line-height:1; letter-spacing:-.05em; }
.stat-card span { color: var(--text-muted); font-weight:650; font-size:.86rem; }
.card { border-radius: var(--radius-lg); padding: 24px; }
.card-header { margin-bottom:20px; }
.card-header h2, .section-head h2 { font-size:1.08rem; letter-spacing:-.02em; }
.card-header p { color:var(--text-muted); margin-top:4px; }
.section-head { display:flex; justify-content:space-between; align-items:center; margin: 4px 0 15px; }
.section-head a { font-weight:700; font-size:.88rem; }

.grid-walls { display:grid; grid-template-columns: repeat(auto-fill, minmax(168px, 1fr)); gap:18px; }
.wall-card { position:relative; display:block; overflow:hidden; border-radius:24px; aspect-ratio:9/14; background:#0b0d14; border:1px solid var(--border); box-shadow: 0 12px 34px rgba(0,0,0,.22); color:#fff; transition:.25s ease; }
.wall-card:hover { transform: translateY(-6px); border-color: rgba(255,255,255,.2); box-shadow: var(--shadow); }
.wall-card img { width:100%; height:100%; object-fit:cover; display:block; transition: transform .5s ease; }
.wall-card:hover img { transform: scale(1.06); }
.wall-card .meta { position:absolute; inset:auto 0 0; padding:52px 14px 14px; background:linear-gradient(transparent, rgba(0,0,0,.88)); font-size:.84rem; font-weight:700; }
.wall-card .cat { color:#ddd6fe; font-size:.7rem; text-transform:uppercase; letter-spacing:.08em; margin-bottom:4px; }
.manage-card .card-actions { position:absolute; left:10px; right:10px; bottom:10px; display:flex; align-items:center; justify-content:center; gap:8px; padding:10px; border-radius:18px; background:rgba(2,6,23,.72); border:1px solid rgba(255,255,255,.16); backdrop-filter:blur(14px); -webkit-backdrop-filter:blur(14px); opacity:1; transform:none; transition:.22s ease; }
.manage-card:hover .card-actions { background:rgba(2,6,23,.86); transform:translateY(-2px); }
.manage-card .meta { padding-bottom:78px; }
.card-actions .btn { flex:1; min-width:0; }
.card-actions form { margin:0; }

.form-layout, .split-layout { display:grid; grid-template-columns: minmax(0,1fr) 390px; gap:24px; align-items:start; }
.split-layout { grid-template-columns: 420px minmax(0,1fr); }
.field { margin-bottom:18px; }
.field label { display:block; margin-bottom:8px; color:var(--text-soft); font-weight:800; font-size:.76rem; text-transform:uppercase; letter-spacing:.075em; }
.field input[type='text'], .field input[type='url'], .field input[type='password'], .field select {
  width:100%; min-height:48px; padding: 12px 15px; border-radius: 15px;
  border:1px solid var(--border); background: rgba(3,6,14,.64); color:var(--text);
  outline:none; transition:.18s ease;
}
.field input::placeholder { color:#64748b; }
.field input:focus, .field select:focus { border-color: rgba(139,92,246,.78); box-shadow:0 0 0 4px rgba(139,92,246,.16); }
.field select { appearance:none; cursor:pointer; background-image: linear-gradient(45deg, transparent 50%, #94a3b8 50%), linear-gradient(135deg, #94a3b8 50%, transparent 50%); background-position: calc(100% - 18px) 21px, calc(100% - 12px) 21px; background-size:6px 6px; background-repeat:no-repeat; }
.tabs { display:flex; gap:7px; padding:6px; margin-bottom:20px; border:1px solid var(--border); border-radius:16px; background: rgba(3,6,14,.5); }
.tab { flex:1; border:0; border-radius:12px; padding:10px 14px; background:transparent; color:var(--text-muted); font-weight:800; cursor:pointer; }
.tab.active { color:#fff; background: rgba(255,255,255,.075); box-shadow: inset 0 1px 0 rgba(255,255,255,.08); }
.panel { display:none; animation: fadeIn .25s ease; }
.panel.active { display:block; }
@keyframes fadeIn { from{opacity:0; transform:translateY(5px)} to{opacity:1; transform:none} }
.upload-zone { display:flex!important; flex-direction:column; align-items:center; justify-content:center; gap:8px; min-height:190px; border:1.5px dashed rgba(255,255,255,.18); border-radius:22px; background: rgba(3,6,14,.45); cursor:pointer; text-align:center; transition:.2s ease; }
.upload-zone:hover { border-color: rgba(139,92,246,.85); background: rgba(139,92,246,.08); }
.upload-zone input { display:none; }
.upload-icon { width:52px; height:52px; border-radius:18px; display:grid; place-items:center; background: var(--primary-soft); font-size:1.45rem; }
.submit-btn { width:100%; min-height:52px; margin-top:8px; }
.preview-panel { position:sticky; top:28px; }
.preview-label { color:var(--text-muted); font-weight:800; font-size:.72rem; letter-spacing:.09em; text-transform:uppercase; margin-bottom:10px; }
.preview { display:none; overflow:hidden; border-radius:28px; aspect-ratio:9/14; background:#020617; border:1px solid var(--border); box-shadow:var(--shadow); }
.preview.show { display:block; }
.preview img { width:100%; height:100%; object-fit:cover; display:block; }

.alert { padding: 13px 15px; border-radius:15px; margin-bottom:18px; font-weight:700; font-size:.9rem; }
.alert-ok { color:#bbf7d0; background:rgba(34,197,94,.12); border:1px solid rgba(34,197,94,.25); }
.alert-err { color:#fecdd3; background:var(--danger-soft); border:1px solid rgba(251,113,133,.25); }
.toast { position:fixed; top:22px; right:22px; z-index:1000; display:flex; gap:10px; align-items:center; padding:14px 18px; border-radius:18px; font-weight:800; box-shadow:var(--shadow); backdrop-filter:blur(14px); animation:toastIn .35s ease; }
.toast-success { background:rgba(20,83,45,.92); color:#bbf7d0; border:1px solid rgba(34,197,94,.32); }
.toast-error { background:rgba(127,29,29,.92); color:#fecaca; border:1px solid rgba(251,113,133,.32); }
.toast.hide { opacity:0; transform:translateY(-10px); transition:.3s ease; }
@keyframes toastIn { from{opacity:0; transform:translateY(-12px)} to{opacity:1; transform:none} }

.cat-list { display:flex; flex-direction:column; gap:12px; }
.cat-row { display:flex; align-items:center; gap:14px; border-radius:20px; padding:12px; }
.cat-thumb { width:62px; height:62px; border-radius:17px; overflow:hidden; background:#0f172a; border:1px solid var(--border); flex-shrink:0; }
.cat-thumb img { width:100%; height:100%; object-fit:cover; }
.cat-info { flex:1; min-width:0; }
.cat-info strong { display:block; font-weight:800; }
.cat-info span { color:var(--text-muted); font-size:.84rem; font-weight:650; }
.api-box { margin-top:28px; padding:20px; border-radius:22px; }
.api-box strong { display:block; color:var(--text-soft); text-transform:uppercase; letter-spacing:.08em; font-size:.72rem; margin-bottom:10px; }
code { display:block; padding:13px 14px; border-radius:14px; color:#ddd6fe; background:rgba(3,6,14,.68); border:1px solid var(--border); word-break:break-all; font-family:'SF Mono', Monaco, monospace; font-size:.82rem; }
.empty { text-align:center; padding:58px 22px; color:var(--text-muted); }
.empty-icon { font-size:3rem; opacity:.62; margin-bottom:12px; }
.empty h3 { color:var(--text); margin-bottom:6px; }
.empty p { margin-bottom:18px; }

.login-page { min-height:100vh; display:grid; grid-template-columns: 1.05fr .95fr; background:var(--bg); }
.login-hero { position:relative; display:flex; align-items:flex-end; padding:52px; overflow:hidden; }
.login-hero::before { content:''; position:absolute; inset:0; background: url('https://images.unsplash.com/photo-1618005182384-a83a8bd57fbe?w=1600&q=85') center/cover; opacity:.48; transform:scale(1.02); }
.login-hero::after { content:''; position:absolute; inset:0; background:linear-gradient(180deg, rgba(7,8,13,.1), rgba(7,8,13,.88)); }
.login-hero-content { position:relative; z-index:1; max-width:520px; }
.login-hero h1 { font-size: clamp(2rem, 5vw, 4rem); line-height:1; letter-spacing:-.06em; margin-bottom:16px; }
.login-hero p { color:var(--text-soft); font-size:1.08rem; }
.login-panel { display:grid; place-items:center; padding:28px; background:radial-gradient(circle at 100% 0, rgba(139,92,246,.13), transparent 26rem); }
.login-form-wrap { width:min(420px,100%); padding:34px; border:1px solid var(--border); border-radius:30px; background:linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.035)); box-shadow:var(--shadow); backdrop-filter:blur(16px); }
.login-form-wrap .brand-icon { margin-bottom:22px; }
.login-form-wrap h2 { font-size:1.65rem; letter-spacing:-.035em; }
.login-form-wrap .subtitle { color:var(--text-muted); margin:8px 0 26px; }

@media (max-width: 980px) {
  .sidebar { position:relative; width:100%; inset:auto; border-right:0; border-bottom:1px solid var(--border); }
  .app { display:block; }
  .main { margin-left:0; }
  .main-bg { left:0; }
  .main-inner { padding:24px 18px 42px; }
  .stats, .form-layout, .split-layout { grid-template-columns:1fr; }
  .preview-panel { position:static; }
  .login-page { grid-template-columns:1fr; }
  .login-hero { min-height:260px; padding:32px; }
}
@media (max-width: 560px) {
  .main-inner { padding:20px 14px 36px; }
  .grid-walls { grid-template-columns: repeat(2, minmax(0,1fr)); gap:12px; }
  .page-header { align-items:flex-start; }
  .btn { width:100%; }
  .page-actions { width:100%; }
  .manage-card .card-actions { opacity:1; }
  .login-form-wrap { padding:24px; border-radius:24px; }
}

/* Always visible controls for wallpaper management */
.manage-card .card-actions{
  opacity:1 !important;
  pointer-events:auto;
  align-items:flex-end;
  justify-content:space-between;
  padding:0.85rem;
  background:linear-gradient(180deg, transparent 35%, rgba(0,0,0,.92) 100%);
}
.manage-card .card-actions .btn,
.manage-card .card-actions form{position:relative;z-index:2}
.manage-card .card-actions form{margin:0}
.manage-card .btn-danger{background:rgba(244,63,94,.22);color:#fff;border-color:rgba(244,63,94,.45)}
.manage-card .btn-ghost{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.22)}