/* OnlyLANs — JHT-inspired refined dark theme.
 * Beautiful minimalist: cool-toned ink palette, real typography (Inter + JetBrains Mono),
 * layered surfaces with subtle inner highlights, cyan reserved for primary action + active state.
 */

:root {
  /* Surfaces — all subtly teal-tinted so containers feel "alive" instead of muddy */
  --bg:            #060a10;  /* page ink (slightly darker so cards lift more) */
  --bg-elev:      #0a1018;  /* header/sub-header */
  --surface:      #0e1c25;  /* card — faint teal wash inside */
  --surface-2:    #122836;  /* hover / modal / bot bubble — stronger teal wash */
  --canvas:       #060d12;  /* drawflow / chat-log / inputs */

  /* Borders — washed cyan so containers read as "ours" without competing with the active state */
  --border:       rgba(0, 216, 253, 0.18);
  --border-strong:rgba(0, 216, 253, 0.32);

  /* Text */
  --text:         #e6edf3;
  --text-2:       #c9d1d9;
  --text-muted:   #7d8590;
  --text-faint:   #586069;

  /* Brand */
  --accent:       #00d8fd;
  --accent-2:     #5ce4fc;
  --accent-glow:  rgba(0,216,253,.18);

  /* Semantic */
  --success:      #3fb950;
  --error:        #f85149;
  --warning:      #d29922;
}

* { -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }

html, body { background: var(--bg); color: var(--text-2); }

.page {
  background:
    radial-gradient(ellipse 60rem 32rem at 50% -8rem, rgba(0,216,253,0.07), transparent 60%),
    radial-gradient(ellipse 40rem 24rem at 90% 0%, rgba(0,216,253,0.04), transparent 70%),
    var(--bg);
  background-attachment: fixed;
}

/* ---------- Color & text utilities (small set, used throughout) ---------- */

.text-primary   { color: var(--text); }
.text-secondary { color: var(--text-2); }
.text-muted     { color: var(--text-muted); }
.text-accent    { color: var(--accent); }
.text-accent-strong:hover { color: var(--accent-2); }
.bg-surface     { background: var(--surface); }

/* ---------- Wordmark ---------- */

.wordmark {
  font-family: 'Inter', sans-serif;
  font-weight: 700;
  font-size: 1.35rem;
  letter-spacing: -0.02em;
  color: var(--text);
  line-height: 1.1;
}
.wordmark .cursor-blink {
  color: var(--accent);
  margin-left: 1px;
  animation: blink 1.1s steps(1) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

/* ---------- Header / sub-header ---------- */

.header {
  background: linear-gradient(180deg, rgba(0,216,253,0.02), transparent 70%), var(--bg-elev);
  border-bottom: 1px solid var(--border);
}
.header-sub {
  background: var(--bg-elev);
  border-bottom: 1px solid var(--border);
}

/* ---------- Cards ---------- */

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 0.625rem;
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,0.03),
    0 1px 2px rgba(0,0,0,0.4),
    0 8px 24px -8px rgba(0,0,0,0.5);
}

.sub-surface {
  background: var(--canvas);
  border: 1px solid var(--border);
  border-radius: 0.5rem;
}

/* Divider between network map and chat inside the shared container */
.section-divider {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: 1.25rem 0 1.25rem;
}
.section-divider::before,
.section-divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--border-strong), transparent);
}
.section-divider-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  white-space: nowrap;
}

.canvas-surface {
  background:
    radial-gradient(circle at 1px 1px, rgba(255,255,255,0.04) 1px, transparent 0) 0 0 / 18px 18px,
    var(--canvas);
  border: 1px solid var(--border);
  border-radius: 0.5rem;
}

/* ---------- Typography for sections ---------- */

.section-title {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.01em;
  display: flex;
  align-items: baseline;
  gap: 0.65rem;
}
.section-num {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--text-faint);
  letter-spacing: 0.1em;
}

.status-meta {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  color: var(--text-muted);
  letter-spacing: 0.04em;
}

/* ---------- Inputs ---------- */

.input {
  background: var(--canvas);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 0.375rem;
  padding: 0.55rem 0.75rem;
  font-size: 0.9rem;
  transition: border-color .15s ease, box-shadow .15s ease;
}
.input::placeholder { color: var(--text-faint); }
.input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

/* ---------- Buttons ---------- */

.btn-primary {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.4rem;
  background: var(--accent);
  color: #001218;
  font-weight: 600;
  font-size: 0.875rem;
  padding: 0.55rem 1rem;
  border-radius: 0.375rem;
  border: 1px solid transparent;
  box-shadow: 0 0 0 1px rgba(0,0,0,.05) inset, 0 6px 14px -6px var(--accent-glow);
  transition: background .15s ease, transform .1s ease, box-shadow .15s ease;
}
.btn-primary:hover:not(:disabled) {
  background: var(--accent-2);
  box-shadow: 0 0 0 1px rgba(0,0,0,.05) inset, 0 8px 22px -6px rgba(0,216,253,.4);
}
.btn-primary:active:not(:disabled) { transform: translateY(1px); }
.btn-primary:disabled { opacity: 0.55; cursor: not-allowed; }
.btn-primary.is-success {
  background: var(--success);
  color: #001a07;
  box-shadow: 0 6px 14px -6px rgba(63,185,80,.4);
}
.btn-primary.is-error {
  background: var(--error);
  color: #1a0303;
  box-shadow: 0 6px 14px -6px rgba(248,81,73,.4);
}

.btn-ghost {
  display: inline-flex; align-items: center; justify-content: center;
  background: transparent;
  color: var(--text-2);
  border: 1px solid var(--border-strong);
  font-weight: 500;
  font-size: 0.875rem;
  padding: 0.5rem 0.95rem;
  border-radius: 0.375rem;
  transition: border-color .15s ease, color .15s ease, background .15s ease;
}
.btn-ghost:hover:not(:disabled) {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(0,216,253,0.04);
}

/* ---------- Code block ---------- */

.code-block {
  background: var(--canvas);
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  padding: 0.85rem 1rem;
  color: var(--accent);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.78rem;
  line-height: 1.55;
  overflow: auto;
}

/* ---------- Palette items ---------- */

.palette-item {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.5rem 0.6rem;
  border-radius: 0.375rem;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-2);
  cursor: grab;
  font-size: 0.85rem;
  user-select: none;
  transition: border-color .15s ease, color .15s ease, background .15s ease;
}
.palette-item:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(0,216,253,0.04);
}
.palette-item:active { cursor: grabbing; }

/* ---------- Drawflow ---------- */

.drawflow .drawflow-node {
  background: var(--surface-2);
  border: 1px solid var(--border-strong);
  border-radius: 0.5rem;
  padding: 0;
  min-width: 9rem;
  box-shadow: 0 4px 12px -4px rgba(0,0,0,0.6);
  color: var(--text);
}
.drawflow .drawflow-node.selected {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent), 0 0 18px -2px var(--accent-glow);
}
.drawflow .drawflow-node .device-card {
  display: flex; align-items: center; gap: .55rem;
  padding: .55rem .8rem;
}
.drawflow .drawflow-node .device-card .icon { font-size: 1.4rem; }
.drawflow .drawflow-node .device-card .meta { display: flex; flex-direction: column; line-height: 1.15; }
.drawflow .drawflow-node .device-card .meta .label { font-weight: 600; font-size: .88rem; color: var(--text); }
.drawflow .drawflow-node .device-card .meta .type {
  font-size: .65rem; color: var(--text-muted);
  text-transform: uppercase; letter-spacing: .12em;
  font-family: 'JetBrains Mono', monospace;
  margin-top: 1px;
}

.drawflow .connection .main-path { stroke: var(--accent); stroke-width: 1.5px; }
.drawflow .drawflow-node .input,
.drawflow .drawflow-node .output {
  background: var(--accent);
  border: 2px solid var(--canvas);
}

/* ---------- Chat ---------- */

.chat-log {
  background: var(--canvas);
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  padding: 0.85rem 1rem;
  display: flex; flex-direction: column; gap: 0.65rem;
  max-height: 320px;
}

.netbuddy-avatar {
  width: 5rem;
  height: 5rem;
  float: left;
  margin: -0.2rem 0.7rem 0.25rem -0.25rem;
  pointer-events: none;
  user-select: none;
}

/* Speech bubble — used in the intro modal so NetBuddy's intro reads like he's talking. */
.speech-bubble {
  background: var(--surface-2);
  border: 1px solid var(--border-strong);
  color: var(--text);
  padding: 0.85rem 1rem;
  border-radius: 0.625rem;
  position: relative;
  line-height: 1.5;
}
.speech-bubble::before,
.speech-bubble::after {
  content: "";
  position: absolute;
  /* Aim the tail at NetBuddy's mouth (~25% down a 192px image, items-start aligned). */
  top: 3rem;
  width: 0;
  height: 0;
  border-style: solid;
}
.speech-bubble::before {
  left: -9px;
  border-width: 9px 9px 9px 0;
  border-color: transparent var(--border-strong) transparent transparent;
}
.speech-bubble::after {
  left: -8px;
  margin-top: 1px;
  border-width: 8px 8px 8px 0;
  border-color: transparent var(--surface-2) transparent transparent;
}

.bubble {
  max-width: 82%;
  padding: 0.6rem 0.85rem;
  border-radius: 0.5rem;
  font-size: 0.9rem;
  line-height: 1.45;
  white-space: pre-wrap;
  word-wrap: break-word;
}
.bubble-user {
  background: var(--accent);
  color: #001218;
  margin-left: auto;
  font-weight: 500;
  box-shadow: 0 6px 16px -6px var(--accent-glow);
}
.bubble-bot {
  background: var(--surface-2);
  color: var(--text);
  border: 1px solid var(--border-strong);
  margin-right: auto;
}
.bubble-error {
  background: rgba(248,81,73,0.08);
  color: #ffa198;
  border: 1px solid rgba(248,81,73,0.4);
}

/* Typing dots */
.typing-dots span {
  display: inline-block;
  width: 6px; height: 6px; margin: 0 1px;
  background: var(--accent); border-radius: 50%;
  animation: typing 1.2s infinite ease-in-out;
}
.typing-dots span:nth-child(2) { animation-delay: 0.2s; }
.typing-dots span:nth-child(3) { animation-delay: 0.4s; }
@keyframes typing {
  0%, 60%, 100% { transform: translateY(0); opacity: .5; }
  30% { transform: translateY(-3px); opacity: 1; }
}

/* ---------- Modals ---------- */

.modal-backdrop {
  background: rgba(5,8,12,0.78);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}
.modal-card {
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: 0.75rem;
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,0.04),
    0 24px 60px -12px rgba(0,0,0,0.7);
}

#node-modal.show { display: flex; }
#intro-modal.show { display: flex; }

/* ---------- Level cards ---------- */

.level-card {
  cursor: pointer;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 0.375rem;
  padding: 0.4rem 0.65rem;
  color: var(--text-2);
  position: relative;
  transition: border-color .15s ease, background .15s ease, transform .1s ease;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.03);
}
.level-card:hover:not(:disabled):not(.is-active) {
  border-color: var(--border-strong);
  background: var(--surface-2);
}
.level-card.is-active {
  border-color: var(--accent);
  background:
    linear-gradient(180deg, rgba(0,216,253,0.06), transparent 60%),
    var(--surface);
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,0.04),
    0 0 0 1px var(--accent),
    0 0 22px -4px var(--accent-glow);
}
.level-card.is-active .level-card-tag { color: var(--accent); }
.level-card:disabled { cursor: not-allowed; opacity: 0.45; }

.level-card .level-card-tag { color: var(--text-muted); }
.level-card .level-card-progress { color: var(--text-muted); font-variant-numeric: tabular-nums; }
.level-card .secret-pip {
  display: inline-block;
  width: 0.5rem; height: 0.5rem;
  border-radius: 9999px;
  background: transparent;
  border: 1px solid var(--border-strong);
  transition: all .25s ease;
}
.level-card .secret-pip.caught {
  background: var(--accent);
  border-color: var(--accent);
  box-shadow: 0 0 8px var(--accent-glow);
}
.level-card.is-complete .level-card-tag::after {
  content: " · cleared";
  color: var(--accent);
}

/* ---------- Toasts ---------- */

.toast {
  background: var(--surface-2);
  border: 1px solid var(--border-strong);
  color: var(--text);
  padding: 0.75rem 1rem;
  border-radius: 0.5rem;
  box-shadow: 0 12px 32px -8px rgba(0,0,0,0.7);
  font-size: 0.875rem;
  min-width: 16rem;
  max-width: 22rem;
  animation: toast-in 0.3s ease-out, toast-out 0.4s ease-in 4.5s forwards;
}
.toast.toast-success { border-color: var(--accent); }
.toast.toast-unlock {
  border-color: var(--accent);
  background: linear-gradient(135deg, rgba(0,216,253,0.08), var(--surface-2));
  box-shadow: 0 0 0 1px var(--accent), 0 0 24px -2px var(--accent-glow);
}
@keyframes toast-in {
  from { transform: translateX(20px); opacity: 0; }
  to   { transform: translateX(0);    opacity: 1; }
}
@keyframes toast-out {
  to { transform: translateX(20px); opacity: 0; pointer-events: none; }
}

/* ---------- Status flash ---------- */

.status-flash {
  animation: status-flash-anim 1.4s ease-out;
  color: var(--accent);
  font-weight: 600;
}
.status-flash-error {
  animation: status-flash-anim 1.8s ease-out;
  color: #ffa198;
  font-weight: 600;
}
@keyframes status-flash-anim {
  0%   { transform: scale(1);    opacity: 0.4; }
  15%  { transform: scale(1.12); opacity: 1; }
  100% { transform: scale(1);    opacity: 1; }
}

/* ---------- Scrollbars (subtle) ---------- */

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 8px; border: 2px solid var(--bg); }
::-webkit-scrollbar-thumb:hover { background: var(--text-faint); }