@import url('https://fonts.googleapis.com/css2?family=Sora:wght@600;700;800;900&family=Inter:wght@400;500;600&family=JetBrains+Mono:wght@400;500&display=swap');

@property --nn-angle {
  syntax: '<angle>';
  initial-value: 0deg;
  inherits: false;
}

:root {
  --nn-cyan: #22d3ee;
  --nn-purple: #7b2cbf;
  --nn-gradient: linear-gradient(90deg, #22d3ee, #7b2cbf);
  --nn-bg-1: rgba(26, 20, 40, 0.94);
  --nn-bg-2: rgba(10, 8, 18, 0.96);
  --nn-text: #f5f7ff;
  --nn-muted: #a8afc2;
  --nn-panel: rgba(255, 255, 255, 0.04);
  --nn-angle: 0deg;
}

#nn-chat-root, #nn-chat-root * {
  box-sizing: border-box;
  font-family: 'Inter', -apple-system, sans-serif;
}
#nn-chat-root .nn-mono { font-family: 'JetBrains Mono', monospace; }
#nn-chat-root .nn-display { font-family: 'Sora', sans-serif; }

/* ---------- Launcher ---------- */
#nn-chat-launcher {
  position: fixed;
  bottom: -9px;
  right: 137px;
  width: 64px;
  height: 64px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 99998;
  border: 2px solid transparent;
  background:
    radial-gradient(circle at 35% 30%, rgba(34,211,238,0.15), var(--nn-bg-2) 65%) padding-box,
    conic-gradient(from var(--nn-angle), #22d3ee, #7b2cbf, #22d3ee) border-box;
  box-shadow: 0 12px 34px -8px rgba(34, 211, 238, 0.4);
  animation: nn-spin 5s linear infinite, nn-pulse-ring 2.8s ease-out infinite;
  transition: transform 0.25s cubic-bezier(.2,.8,.2,1);
}
#nn-chat-launcher:hover { transform: translateY(-2px) scale(1.06); }
#nn-chat-launcher svg { width: 30px; height: 30px; animation: nn-breathe 3.4s ease-in-out infinite; }
#nn-chat-launcher.nn-hidden { display: none; }

@keyframes nn-spin { to { --nn-angle: 360deg; } }
@keyframes nn-pulse-ring {
  0%   { box-shadow: 0 12px 34px -8px rgba(34, 211, 238, 0.4), 0 0 0 0 rgba(123, 44, 191, 0.35); }
  70%  { box-shadow: 0 12px 34px -8px rgba(34, 211, 238, 0.4), 0 0 0 12px rgba(123, 44, 191, 0); }
  100% { box-shadow: 0 12px 34px -8px rgba(34, 211, 238, 0.4), 0 0 0 0 rgba(123, 44, 191, 0); }
}
@keyframes nn-breathe {
  0%, 100% { filter: drop-shadow(0 0 3px rgba(34,211,238,0.7)); transform: scale(1); }
  50%      { filter: drop-shadow(0 0 8px rgba(123,44,191,0.8)); transform: scale(1.05); }
}

/* ---------- Chat window ---------- */
#nn-chat-window {
  position: fixed;
  bottom: 71px;
  right: 137px;
  width: 380px;
  max-width: calc(100vw - 32px);
  height: 560px;
  max-height: calc(100vh - 180px);
  border-radius: 20px;
  border: 1.5px solid transparent;
  background:
    linear-gradient(165deg, var(--nn-bg-1), var(--nn-bg-2)) padding-box,
    conic-gradient(from var(--nn-angle), #22d3ee, #7b2cbf, #22d3ee, #7b2cbf, #22d3ee) border-box;
  box-shadow: 0 30px 70px -15px rgba(0,0,0,0.7), 0 0 40px -10px rgba(123,44,191,0.35);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  display: none;
  flex-direction: column;
  overflow: hidden;
  z-index: 99999;
  opacity: 0;
  transform: translateY(16px) scale(0.97);
  transition: opacity 0.25s cubic-bezier(.2,.8,.2,1), transform 0.25s cubic-bezier(.2,.8,.2,1);
  animation: nn-spin 8s linear infinite;
}
#nn-chat-window.nn-open {
  display: flex;
  opacity: 1;
  transform: translateY(0) scale(1);
}

/* ambient color glow blobs behind the content, so the panel doesn't read as flat black */
#nn-chat-window .nn-glow-1,
#nn-chat-window .nn-glow-2 {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  z-index: 0;
  filter: blur(36px);
}
#nn-chat-window .nn-glow-1 {
  top: -50px; left: -50px; width: 180px; height: 180px;
  background: radial-gradient(circle, rgba(34,211,238,0.35), transparent 70%);
}
#nn-chat-window .nn-glow-2 {
  bottom: -60px; right: -60px; width: 220px; height: 220px;
  background: radial-gradient(circle, rgba(123,44,191,0.4), transparent 70%);
}

/* ---------- Header ---------- */
#nn-chat-header {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 16px 16px 14px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
#nn-chat-header .nn-avatar { width: 32px; height: 32px; flex-shrink: 0; }
#nn-chat-header .nn-avatar svg { width: 100%; height: 100%; }
#nn-chat-header-text { flex: 1; min-width: 0; text-align: center; }
#nn-chat-header-title {
  font-family: 'Sora', sans-serif;
  font-weight: 800;
  font-size: 1rem;
  color: var(--nn-text);
  line-height: 1.2;
}
#nn-chat-close {
  cursor: pointer; color: var(--nn-muted); background: none; border: none;
  width: 32px; height: 32px; flex-shrink: 0;
  border-radius: 8px; display: flex; align-items: center; justify-content: center;
  transition: color 0.15s ease, background 0.15s ease;
}
#nn-chat-close:hover { color: var(--nn-text); background: rgba(255,255,255,0.06); }
#nn-chat-close svg { width: 16px; height: 16px; }

/* ---------- Messages ---------- */
#nn-chat-messages {
  position: relative;
  z-index: 1;
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
#nn-chat-messages::-webkit-scrollbar { width: 6px; }
#nn-chat-messages::-webkit-scrollbar-thumb { background: rgba(34,211,238,0.25); border-radius: 4px; }

.nn-row { display: flex; gap: 8px; align-items: flex-end; animation: nn-msg-in 0.25s cubic-bezier(.2,.8,.2,1); }
@keyframes nn-msg-in { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: translateY(0); } }
.nn-row-bot { justify-content: flex-start; }
.nn-row-user { justify-content: flex-end; }

.nn-row-avatar { width: 22px; height: 22px; flex-shrink: 0; }
.nn-row-avatar svg { width: 100%; height: 100%; }

.nn-bubble {
  max-width: 78%;
  padding: 10px 13px;
  border-radius: 14px;
  font-size: 0.82rem;
  line-height: 1.55;
  word-wrap: break-word;
}
.nn-bubble-bot {
  background: var(--nn-panel);
  border: 1px solid rgba(255,255,255,0.08);
  color: var(--nn-text);
  border-bottom-left-radius: 4px;
}
.nn-bubble-user {
  background: linear-gradient(135deg, rgba(34,211,238,0.22), rgba(123,44,191,0.22));
  border: 1px solid rgba(34,211,238,0.3);
  color: var(--nn-text);
  border-bottom-right-radius: 4px;
}

.nn-sources {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.62rem;
  color: var(--nn-muted);
  margin-top: 6px;
  padding-top: 6px;
  border-top: 1px dashed rgba(255,255,255,0.1);
  word-break: break-all;
}

/* typing indicator */
.nn-typing { display: flex; gap: 4px; padding: 11px 13px; }
.nn-typing span { width: 6px; height: 6px; border-radius: 50%; background: var(--nn-cyan); animation: nn-typing-bounce 1.2s ease-in-out infinite; }
.nn-typing span:nth-child(2) { animation-delay: 0.15s; background: var(--nn-purple); }
.nn-typing span:nth-child(3) { animation-delay: 0.3s; background: var(--nn-cyan); }
@keyframes nn-typing-bounce { 0%, 60%, 100% { transform: translateY(0); opacity: 0.5; } 30% { transform: translateY(-4px); opacity: 1; } }

/* ---------- Input ---------- */
#nn-chat-input-row {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 16px 16px;
  border-top: 1px solid rgba(255,255,255,0.06);
}
#nn-chat-input {
  flex: 1;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  color: var(--nn-text);
  padding: 11px 15px;
  font-size: 0.82rem;
  border-radius: 999px;
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
#nn-chat-input::placeholder { color: var(--nn-muted); }
#nn-chat-input:focus { border-color: var(--nn-cyan); box-shadow: 0 0 0 3px rgba(34,211,238,0.15); }

#nn-chat-send {
  width: 38px; height: 38px; flex-shrink: 0;
  background: var(--nn-gradient);
  border: none; border-radius: 50%;
  cursor: pointer; display: flex; align-items: center; justify-content: center;
  transition: transform 0.2s ease, opacity 0.15s ease;
}
#nn-chat-send:hover:not(:disabled) { transform: translateY(-1px) scale(1.06); }
#nn-chat-send:disabled { opacity: 0.45; cursor: not-allowed; }
#nn-chat-send svg { width: 16px; height: 16px; }

@media (max-width: 420px) {
  #nn-chat-window { right: 16px; bottom: 112px; width: calc(100vw - 32px); }
  #nn-chat-launcher { right: 16px; }
}