* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: #0d0d14;
  color: #e8e8ef;
  min-height: 100vh;
}
.hidden { display: none !important; }
.screen { min-height: 100vh; }

#login-screen {
  display: flex;
  align-items: center;
  justify-content: center;
}
.login-box {
  background: #16161f;
  border: 1px solid #2a2a3a;
  border-radius: 16px;
  padding: 48px;
  width: 380px;
  text-align: center;
  box-shadow: 0 0 60px rgba(140, 60, 200, 0.15);
}
.login-box h1 { font-size: 32px; margin-bottom: 8px; }
.subtitle { color: #8888a0; margin-bottom: 28px; font-size: 14px; }
.login-box input {
  width: 100%;
  padding: 12px 14px;
  margin-bottom: 12px;
  background: #0d0d14;
  border: 1px solid #2a2a3a;
  border-radius: 8px;
  color: #e8e8ef;
  font-size: 15px;
}
.login-box button {
  width: 100%;
  padding: 12px;
  background: linear-gradient(135deg, #dc3c3c, #8c3cc8);
  border: none;
  border-radius: 8px;
  color: white;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  margin-top: 8px;
}
.login-box button:hover { opacity: 0.9; }
.error { color: #ff6b6b; margin-top: 12px; font-size: 13px; min-height: 18px; }

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 32px;
  border-bottom: 1px solid #2a2a3a;
  background: #12121a;
}
header h1 { font-size: 22px; }
.tag { font-size: 12px; color: #6a6a80; font-weight: normal; }
.header-actions button {
  background: #1e1e2a;
  border: 1px solid #2a2a3a;
  color: #e8e8ef;
  padding: 8px 16px;
  border-radius: 6px;
  cursor: pointer;
  margin-left: 8px;
  font-size: 13px;
}
.header-actions button:hover { background: #2a2a3a; }

.feed-section {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 32px;
}
.section-title {
  font-size: 20px;
  padding: 28px 0 12px;
  border-bottom: 1px solid #2a2a3a;
  margin-bottom: 24px;
}
.feed {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 24px;
  padding-bottom: 12px;
}
.card {
  background: #16161f;
  border: 1px solid #2a2a3a;
  border-radius: 14px;
  overflow: hidden;
  transition: transform 0.15s;
}
.card:hover { transform: translateY(-3px); }
.card img { width: 100%; display: block; }
.card-body { padding: 18px; }
.card-badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 700;
  margin-bottom: 10px;
}
.badge-J1 { background: #dc3c3c33; color: #ff8888; }
.badge-J7 { background: #3c78dc33; color: #88b8ff; }
.badge-J30 { background: #8c3cc833; color: #d0a0ff; }
.card-date { color: #8888a0; font-size: 12px; margin-bottom: 12px; }
.card-source { color: #a0a0b8; font-size: 13px; margin-bottom: 10px; font-style: italic; }
.card-reasoning { color: #c0c0d0; font-size: 13px; line-height: 1.5; margin-bottom: 14px; }
.card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid #2a2a3a;
  padding-top: 12px;
}
.card-hash {
  font-family: monospace;
  font-size: 11px;
  color: #6a6a80;
}
.verify-btn {
  background: none;
  border: 1px solid #3a3a4a;
  color: #a0a0b8;
  padding: 6px 12px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 12px;
}
.verify-btn:hover { background: #2a2a3a; }
.ots-status { font-size: 11px; padding: 3px 8px; border-radius: 4px; }
.ots-pending { background: #d4a01733; color: #d4a017; }
.ots-unavailable { background: #4a4a5a33; color: #8888a0; }
.ots-confirmed { background: #2ecc7133; color: #2ecc71; }

.modal {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.7);
  display: flex; align-items: center; justify-content: center;
  z-index: 100;
}
.modal-content {
  background: #16161f;
  border: 1px solid #2a2a3a;
  border-radius: 14px;
  padding: 32px;
  width: 480px;
  position: relative;
}
.modal-close {
  position: absolute; top: 16px; right: 16px;
  background: none; border: none; color: #8888a0;
  font-size: 24px; cursor: pointer;
}
#verify-result { margin-top: 16px; font-size: 14px; line-height: 1.8; }
.verify-ok { color: #2ecc71; }
.verify-fail { color: #ff6b6b; }
.empty-state { text-align: center; color: #6a6a80; padding: 60px 20px; grid-column: 1/-1; }

.modal-subtitle { color: #a0a0b8; font-size: 13px; margin: 12px 0 20px; line-height: 1.5; }
#custom-modal label { display: block; font-size: 13px; color: #8888a0; margin-bottom: 6px; }
#custom-days {
  width: 100%;
  padding: 12px 14px;
  margin-bottom: 16px;
  background: #0d0d14;
  border: 1px solid #2a2a3a;
  border-radius: 8px;
  color: #e8e8ef;
  font-size: 15px;
}
#custom-submit {
  width: 100%;
  padding: 12px;
  background: linear-gradient(135deg, #14a096, #3c78dc);
  border: none;
  border-radius: 8px;
  color: white;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
}
#custom-submit:hover { opacity: 0.9; }
#custom-submit:disabled { opacity: 0.5; cursor: not-allowed; }
#custom-result { margin-top: 20px; font-size: 14px; }
#custom-result img { width: 100%; border-radius: 10px; margin-top: 12px; }
.custom-loading { color: #8888a0; text-align: center; padding: 20px; }
.badge-custom { background: #14a09633; color: #4ce0d4; }