:root {
  --bg: #0d0d12;
  --bg-card: #16161f;
  --bg-hover: #1e1e2a;
  --border: #2a2a3a;
  --text: #e8e8f0;
  --text-muted: #8888a0;
  --primary: #a855f7;
  --primary-hover: #9333ea;
  --secondary: #ec4899;
  --success: #22c55e;
  --error: #ef4444;
  --radius: 12px;
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  min-height: 100vh;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 18px;
  border: none;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
}

.btn-primary { background: linear-gradient(135deg, var(--primary), var(--secondary)); color: #fff; }
.btn-primary:hover { filter: brightness(1.1); transform: translateY(-1px); }
.btn-secondary { background: var(--bg-hover); color: var(--text); border: 1px solid var(--border); }
.btn-secondary:hover { background: var(--border); }
.btn-ghost { background: transparent; color: var(--text-muted); }
.btn-ghost:hover { color: var(--text); background: var(--bg-hover); }
.btn-sm { padding: 6px 12px; font-size: 13px; }
.btn-lg { padding: 14px 28px; font-size: 16px; }
.btn-block { width: 100%; }

.landing .header, .app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-card);
}

.logo { font-size: 20px; font-weight: 700; }

.hero {
  max-width: 900px;
  margin: 0 auto;
  padding: 60px 24px;
  text-align: center;
}

.hero h1 { font-size: 42px; margin-bottom: 16px; background: linear-gradient(135deg, var(--primary), var(--secondary)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.subtitle { color: var(--text-muted); font-size: 18px; margin-bottom: 32px; }
.hero-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin-bottom: 48px; }

.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
}

.feature-icon { font-size: 32px; display: block; margin-bottom: 12px; }
.feature-card h3 { margin-bottom: 8px; font-size: 16px; }
.feature-card p { color: var(--text-muted); font-size: 14px; }

.auth-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 24px;
}

.auth-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  width: 100%;
  max-width: 400px;
  box-shadow: var(--shadow);
}

.auth-card h1 { text-align: center; margin-bottom: 8px; }
.auth-card h2 { text-align: center; color: var(--text-muted); font-size: 16px; margin-bottom: 24px; }

.auth-card label {
  display: block;
  margin-bottom: 16px;
  font-size: 13px;
  color: var(--text-muted);
}

.auth-card input {
  display: block;
  width: 100%;
  margin-top: 6px;
  padding: 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: 15px;
}

.auth-card input:focus { outline: none; border-color: var(--primary); }
.auth-footer { text-align: center; margin-top: 20px; color: var(--text-muted); font-size: 14px; }
.error { color: var(--error); font-size: 14px; margin-bottom: 12px; }

.app-body { display: flex; flex-direction: column; min-height: 100vh; }

.header-right { display: flex; align-items: center; gap: 12px; }
.balance-badge {
  background: var(--bg-hover);
  padding: 6px 14px;
  border-radius: 20px;
  font-weight: 600;
  font-size: 14px;
}

.app-nav {
  display: flex;
  gap: 4px;
  padding: 8px 16px;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  overflow-x: auto;
}

.nav-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  padding: 10px 16px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 14px;
  white-space: nowrap;
}

.nav-btn.active, .nav-btn:hover { background: var(--bg-hover); color: var(--text); }

.app-main { flex: 1; padding: 24px; max-width: 800px; margin: 0 auto; width: 100%; }
.tab { display: none; }
.tab.active { display: block; }

.onboarding {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
}

.onboarding-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  max-width: 420px;
  width: 90%;
}

.lang-btns { display: flex; gap: 12px; margin-bottom: 20px; }

.upload-zone {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 40px;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.2s;
  margin-bottom: 16px;
}

.upload-zone:hover { border-color: var(--primary); }
.upload-placeholder span { font-size: 48px; }
.preview-img { max-width: 100%; max-height: 400px; border-radius: 8px; }

.action-btns { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 16px; }

.option-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 8px;
  margin: 16px 0;
}

.option-btn {
  padding: 12px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  cursor: pointer;
  font-size: 13px;
  text-align: left;
  transition: all 0.2s;
}

.option-btn:hover { border-color: var(--primary); background: var(--bg-hover); }

.option-list { display: flex; flex-direction: column; gap: 8px; margin: 16px 0; }

.option-list .option-btn { text-align: center; }

.processing { text-align: center; padding: 48px; }
.spinner {
  width: 48px; height: 48px;
  border: 3px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 0 auto 16px;
}

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

#result-container img, #result-container video {
  max-width: 100%;
  border-radius: var(--radius);
  margin-bottom: 16px;
}

.packages-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 24px;
}

.package-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 16px 12px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  color: var(--text);
  font-size: 14px;
  text-align: center;
  gap: 6px;
  transition: all 0.2s;
}

.package-btn span:first-child {
  font-size: 13px;
  color: var(--text-muted);
}

.package-btn span:last-child {
  font-size: 18px;
  font-weight: 700;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.package-btn:hover {
  border-color: var(--primary);
  background: var(--bg-hover);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(168, 85, 247, 0.2);
}

.profile-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 20px;
  white-space: pre-line;
  font-size: 15px;
  line-height: 2;
}

.promo-block, .referral-transfer { margin-top: 24px; }
.promo-row { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 8px; }
.promo-row input { flex: 1; min-width: 160px; padding: 10px; background: var(--bg); border: 1px solid var(--border); border-radius: 8px; color: var(--text); }
.promo-block input, .referral-transfer input {
  padding: 10px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  margin-right: 8px;
}

.status-msg { font-size: 14px; margin-top: 10px; padding: 10px 12px; border-radius: 8px; }
.status-msg.success { background: rgba(34, 197, 94, 0.15); color: var(--success); }
.status-msg.error { background: rgba(239, 68, 68, 0.15); color: var(--error); }
.pay-status { margin-top: 12px; display: flex; flex-direction: column; gap: 8px; align-items: flex-start; }
.manual-info { white-space: pre-wrap; background: var(--bg); padding: 12px; border-radius: 8px; font-size: 14px; margin-bottom: 8px; }

.ref-link-box { display: flex; gap: 8px; margin-top: 16px; }
.ref-link-box input { flex: 1; padding: 10px; background: var(--bg); border: 1px solid var(--border); border-radius: 8px; color: var(--text); }

.hint { color: var(--text-muted); font-size: 14px; margin-bottom: 16px; }

.admin-main { max-width: 900px; margin: 0 auto; padding: 24px; }
.admin-section {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 16px;
}

.inline-form { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 12px; }
.inline-form input, .inline-form textarea, select {
  padding: 8px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
}

.manual-item {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px;
  margin-bottom: 8px;
}

.toggle-row { display: flex; gap: 16px; margin-bottom: 12px; }
.toggle-row label { display: flex; align-items: center; gap: 6px; }

@media (max-width: 600px) {
  .hero h1 { font-size: 28px; }
  .app-nav { padding: 8px; }
  .nav-btn { padding: 8px 12px; font-size: 13px; }
}