/* ========================================================
   CreatorAI — Estilos globales (dark theme Artlist-style)
   ======================================================== */

:root {
  --bg:       #0a0a0a;
  --bg2:      #111111;
  --bg3:      #1a1a1a;
  --border:   #2a2a2a;
  --border2:  #333333;
  --txt:      #f1f5f9;
  --txt2:     #94a3b8;
  --txt3:     #64748b;
  --purple:   #7c3aed;
  --purple2:  #9d4cff;
  --cyan:     #06b6d4;
  --green:    #10b981;
  --amber:    #f59e0b;
  --red:      #ef4444;
  --radius:   12px;
  --shadow:   0 4px 24px rgba(0,0,0,.5);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--txt);
  line-height: 1.6;
  min-height: 100vh;
}

a { color: var(--purple2); text-decoration: none; }
a:hover { text-decoration: underline; }

img { max-width: 100%; display: block; }

/* ─── Scrollbar ─── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg2); }
::-webkit-scrollbar-thumb { background: var(--border2); border-radius: 3px; }

/* ─── Navbar ─── */
.navbar {
  position: sticky; top: 0; z-index: 100;
  background: rgba(10,10,10,.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 0 24px;
  display: flex; align-items: center; justify-content: space-between;
  height: 64px;
}
.navbar-brand {
  font-size: 20px; font-weight: 700;
  background: linear-gradient(135deg, var(--purple2), var(--cyan));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.navbar-nav { display: flex; gap: 8px; align-items: center; }
.navbar-nav a { color: var(--txt2); font-size: 14px; padding: 8px 12px; border-radius: 8px; transition: all .2s; }
.navbar-nav a:hover { color: var(--txt); background: var(--bg3); text-decoration: none; }
.navbar-credits {
  background: var(--bg3); border: 1px solid var(--border);
  border-radius: 20px; padding: 6px 14px;
  font-size: 13px; color: var(--amber); font-weight: 600;
  display: flex; align-items: center; gap: 6px;
}

/* ─── Botones ─── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 10px 20px; border-radius: 8px; border: none;
  font-size: 14px; font-weight: 600; cursor: pointer;
  transition: all .2s; text-decoration: none !important;
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, var(--purple), var(--purple2));
  color: #fff; box-shadow: 0 4px 15px rgba(124,58,237,.3);
}
.btn-primary:hover { opacity: .9; transform: translateY(-1px); box-shadow: 0 6px 20px rgba(124,58,237,.4); }
.btn-secondary { background: var(--bg3); color: var(--txt); border: 1px solid var(--border2); }
.btn-secondary:hover { background: var(--border); }
.btn-outline {
  background: transparent; color: var(--purple2);
  border: 1px solid var(--purple); padding: 9px 19px;
}
.btn-outline:hover { background: var(--purple); color: #fff; }
.btn-danger { background: var(--red); color: #fff; }
.btn-lg { padding: 14px 28px; font-size: 16px; }
.btn-sm { padding: 6px 14px; font-size: 12px; }
.btn:disabled { opacity: .5; cursor: not-allowed; }

/* ─── Cards ─── */
.card {
  background: var(--bg3); border: 1px solid var(--border);
  border-radius: var(--radius); overflow: hidden;
  transition: border-color .2s, transform .2s, box-shadow .2s;
}
.card:hover { border-color: var(--border2); box-shadow: var(--shadow); }
.card-body { padding: 20px; }
.card-hover:hover { transform: translateY(-2px); box-shadow: 0 8px 32px rgba(0,0,0,.6); }

/* ─── Forms ─── */
.form-group { margin-bottom: 18px; }
.form-label { display: block; font-size: 13px; color: var(--txt2); margin-bottom: 6px; font-weight: 500; }
.form-control {
  width: 100%; padding: 11px 14px;
  background: var(--bg2); border: 1px solid var(--border2);
  border-radius: 8px; color: var(--txt); font-size: 14px;
  transition: border-color .2s, box-shadow .2s;
  font-family: inherit;
}
.form-control:focus { outline: none; border-color: var(--purple); box-shadow: 0 0 0 3px rgba(124,58,237,.15); }
.form-control::placeholder { color: var(--txt3); }
textarea.form-control { resize: vertical; min-height: 80px; }
select.form-control { cursor: pointer; }

/* ─── Alerts ─── */
.alert { padding: 12px 16px; border-radius: 8px; font-size: 14px; margin-bottom: 16px; }
.alert-error   { background: rgba(239,68,68,.12); border: 1px solid rgba(239,68,68,.3); color: #fca5a5; }
.alert-success { background: rgba(16,185,129,.12); border: 1px solid rgba(16,185,129,.3); color: #6ee7b7; }
.alert-info    { background: rgba(6,182,212,.12); border: 1px solid rgba(6,182,212,.3); color: #67e8f9; }

/* ─── Grid ─── */
.grid { display: grid; gap: 20px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 900px) { .grid-3,.grid-4 { grid-template-columns: repeat(2,1fr); } }
@media (max-width: 600px) { .grid-2,.grid-3,.grid-4 { grid-template-columns: 1fr; } }

/* ─── Container ─── */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 80px 0; }

/* ─── Badge ─── */
.badge {
  display: inline-block; padding: 2px 8px; border-radius: 20px;
  font-size: 10px; font-weight: 700; text-transform: uppercase; letter-spacing: .5px;
}
.badge-fast    { background: rgba(6,182,212,.2); color: var(--cyan); border: 1px solid rgba(6,182,212,.3); }
.badge-popular { background: rgba(124,58,237,.2); color: var(--purple2); border: 1px solid rgba(124,58,237,.3); }
.badge-premium { background: rgba(245,158,11,.2); color: var(--amber); border: 1px solid rgba(245,158,11,.3); }
.badge-new     { background: rgba(16,185,129,.2); color: var(--green); border: 1px solid rgba(16,185,129,.3); }

/* ─── Dashboard layout ─── */
.app-layout { display: flex; min-height: 100vh; }
.sidebar {
  width: 240px; min-height: 100vh;
  background: var(--bg2); border-right: 1px solid var(--border);
  padding: 24px 16px; position: sticky; top: 0; height: 100vh;
  overflow-y: auto; flex-shrink: 0;
}
.sidebar-logo {
  font-size: 18px; font-weight: 700; margin-bottom: 32px; padding: 0 8px;
  background: linear-gradient(135deg, var(--purple2), var(--cyan));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.sidebar-menu { list-style: none; }
.sidebar-menu a {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 12px; border-radius: 8px; color: var(--txt2);
  font-size: 14px; font-weight: 500; transition: all .2s;
  text-decoration: none;
}
.sidebar-menu a:hover, .sidebar-menu a.active {
  background: var(--bg3); color: var(--txt);
}
.sidebar-menu a.active { color: var(--purple2); }
.sidebar-section { font-size: 11px; color: var(--txt3); text-transform: uppercase;
  letter-spacing: 1px; padding: 16px 12px 6px; font-weight: 600; }
.app-main { flex: 1; overflow: hidden; }
.app-topbar {
  height: 64px; display: flex; align-items: center; justify-content: space-between;
  padding: 0 32px; border-bottom: 1px solid var(--border);
  background: var(--bg); position: sticky; top: 0; z-index: 50;
}
.app-content { padding: 32px; }

/* ─── Generation cards ─── */
.gen-card { aspect-ratio: 1; position: relative; overflow: hidden; cursor: pointer; }
.gen-card img, .gen-card video { width: 100%; height: 100%; object-fit: cover; }
.gen-card-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,.8), transparent);
  opacity: 0; transition: opacity .2s;
  display: flex; align-items: flex-end; padding: 12px;
}
.gen-card:hover .gen-card-overlay { opacity: 1; }
.gen-card-status {
  position: absolute; top: 8px; right: 8px;
  padding: 3px 8px; border-radius: 20px; font-size: 11px; font-weight: 600;
}
.status-processing { background: rgba(245,158,11,.9); color: #000; }
.status-succeeded  { background: rgba(16,185,129,.9); color: #000; }
.status-failed     { background: rgba(239,68,68,.9); color: #fff; }

/* ─── Pricing cards ─── */
.pricing-card { position: relative; text-align: center; }
.pricing-card.featured {
  border-color: var(--purple);
  box-shadow: 0 0 40px rgba(124,58,237,.2);
}
.pricing-badge {
  position: absolute; top: -12px; left: 50%; transform: translateX(-50%);
  background: linear-gradient(135deg, var(--purple), var(--purple2));
  color: #fff; padding: 4px 16px; border-radius: 20px; font-size: 11px; font-weight: 700;
  white-space: nowrap;
}
.pricing-price { font-size: 42px; font-weight: 800; line-height: 1; }
.pricing-price span { font-size: 18px; font-weight: 400; color: var(--txt2); }
.pricing-features { list-style: none; text-align: left; margin: 20px 0; }
.pricing-features li {
  padding: 7px 0; font-size: 14px; color: var(--txt2);
  display: flex; align-items: center; gap: 10px; border-bottom: 1px solid var(--border);
}
.pricing-features li:last-child { border-bottom: none; }
.pricing-features .check { color: var(--green); flex-shrink: 0; }
.pricing-features .cross { color: var(--txt3); flex-shrink: 0; }

/* ─── Hero ─── */
.hero { padding: 120px 0 80px; text-align: center; position: relative; overflow: hidden; }
.hero::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(ellipse 80% 60% at 50% -20%, rgba(124,58,237,.15), transparent);
  pointer-events: none;
}
.hero-title {
  font-size: clamp(36px, 6vw, 72px); font-weight: 900; line-height: 1.05;
  letter-spacing: -2px; margin-bottom: 20px;
}
.hero-title .gradient {
  background: linear-gradient(135deg, var(--purple2) 0%, var(--cyan) 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-sub { font-size: clamp(16px, 2vw, 20px); color: var(--txt2); max-width: 560px; margin: 0 auto 40px; }

/* ─── Tabs ─── */
.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--border); margin-bottom: 24px; }
.tab {
  padding: 10px 18px; font-size: 14px; font-weight: 500; color: var(--txt2);
  border-bottom: 2px solid transparent; cursor: pointer;
  transition: color .2s, border-color .2s; margin-bottom: -1px;
  background: none; border-top: none; border-left: none; border-right: none;
}
.tab:hover { color: var(--txt); }
.tab.active { color: var(--purple2); border-bottom-color: var(--purple2); }

/* ─── Progress bar ─── */
.progress { background: var(--bg2); border-radius: 4px; height: 6px; overflow: hidden; }
.progress-bar {
  height: 100%; border-radius: 4px;
  background: linear-gradient(90deg, var(--purple), var(--cyan));
  transition: width .5s;
}

/* ─── Spinner ─── */
.spinner {
  width: 24px; height: 24px; border: 2px solid var(--border2);
  border-top-color: var(--purple2); border-radius: 50%;
  animation: spin .7s linear infinite; display: inline-block;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ─── Model selector ─── */
.model-option {
  border: 2px solid var(--border); border-radius: 10px; padding: 14px;
  cursor: pointer; transition: all .2s; position: relative;
}
.model-option:hover { border-color: var(--border2); }
.model-option.selected { border-color: var(--purple); background: rgba(124,58,237,.08); }
.model-option input[type="radio"] { display: none; }
.model-name { font-weight: 600; font-size: 14px; margin-bottom: 4px; }
.model-desc { font-size: 12px; color: var(--txt2); }
.model-credits { position: absolute; top: 10px; right: 10px; color: var(--amber); font-size: 12px; font-weight: 700; }

/* ─── Generation result ─── */
.result-box {
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: var(--radius); overflow: hidden;
  min-height: 300px; display: flex; align-items: center; justify-content: center;
}
.result-box img, .result-box video { max-width: 100%; border-radius: var(--radius); }
.result-placeholder { text-align: center; color: var(--txt3); padding: 40px; }
.result-placeholder svg { margin: 0 auto 12px; opacity: .4; }

/* ─── Audio player ─── */
.audio-player {
  background: var(--bg2); border: 1px solid var(--border); border-radius: 12px;
  padding: 20px; display: flex; align-items: center; gap: 16px;
}
audio { width: 100%; }
audio::-webkit-media-controls-panel { background: var(--bg3); }

/* ─── Stats cards ─── */
.stat-card { padding: 20px; }
.stat-value { font-size: 32px; font-weight: 800; }
.stat-label { font-size: 13px; color: var(--txt2); margin-top: 4px; }

/* ─── Page header ─── */
.page-header { margin-bottom: 32px; }
.page-title { font-size: 24px; font-weight: 700; }
.page-subtitle { font-size: 14px; color: var(--txt2); margin-top: 4px; }

/* ─── Footer ─── */
.footer {
  background: var(--bg2); border-top: 1px solid var(--border);
  padding: 48px 0 24px; color: var(--txt2);
}
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer-brand { font-size: 20px; font-weight: 700; margin-bottom: 12px;
  background: linear-gradient(135deg, var(--purple2), var(--cyan));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.footer-links { list-style: none; }
.footer-links li { margin-bottom: 8px; }
.footer-links a { font-size: 13px; color: var(--txt2); transition: color .2s; }
.footer-links a:hover { color: var(--txt); text-decoration: none; }
.footer-bottom { border-top: 1px solid var(--border); padding-top: 24px;
  font-size: 12px; display: flex; justify-content: space-between; align-items: center; }
@media (max-width: 768px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 480px) { .footer-grid { grid-template-columns: 1fr; }
  .sidebar { display: none; } .app-content { padding: 16px; }
  .app-topbar { padding: 0 16px; } }

/* ─── Utilities ─── */
.text-center { text-align: center; }
.text-muted   { color: var(--txt2); }
.text-sm      { font-size: 13px; }
.text-xs      { font-size: 11px; }
.mt-1 { margin-top: 8px; } .mt-2 { margin-top: 16px; } .mt-3 { margin-top: 24px; }
.mb-1 { margin-bottom: 8px; } .mb-2 { margin-bottom: 16px; } .mb-3 { margin-bottom: 24px; }
.flex { display: flex; } .flex-col { flex-direction: column; }
.items-center { align-items: center; } .justify-between { justify-content: space-between; }
.gap-1 { gap: 8px; } .gap-2 { gap: 16px; } .gap-3 { gap: 24px; }
.w-full { width: 100%; }
.hidden { display: none !important; }

/* ─── Animations ─── */
@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }
.fade-in { animation: fadeIn .4s ease forwards; }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: .5; } }
.pulse { animation: pulse 1.5s ease infinite; }