/* ============================================================
   Terminal Forums — frosted glass / phosphor-green / dark theme
   ============================================================ */

:root {
  --bg-void:        #050a07;
  --bg-panel:       rgba(10, 22, 17, 0.55);
  --bg-panel-solid: #0b140f;
  --glass-border:   rgba(94, 255, 175, 0.20);
  --glass-border-hi:rgba(94, 255, 175, 0.45);

  --green-bright:   #5CFFB0;   /* phosphor highlight */
  --green-mid:      #39C98A;   /* primary accent */
  --green-dim:      #4d8a6c;   /* secondary / meta text */
  --green-faint:    #2b4d3d;   /* hairlines */

  --text:           #CFFFE6;
  --text-dim:       #7fb99c;

  --amber:          #FFB454;   /* used sparingly: attachments, warnings */
  --danger:         #FF7A7A;

  --radius:         10px;
  --radius-sm:      6px;
  --mono: 'Fira Code', ui-monospace, 'SFMono-Regular', Consolas, 'Liberation Mono', monospace;
}

* { box-sizing: border-box; }

html, body {
  height: 100%;
  margin: 0;
}

body {
  background:
    radial-gradient(ellipse 120% 80% at 50% -10%, rgba(57, 201, 138, 0.10), transparent 60%),
    radial-gradient(ellipse 100% 60% at 100% 110%, rgba(57, 201, 138, 0.06), transparent 60%),
    var(--bg-void);
  color: var(--text);
  font-family: var(--mono);
  font-size: 14.5px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  overflow: hidden;
}

::selection {
  background: rgba(94, 255, 175, 0.30);
  color: #fff;
}

/* ---- scrollbars ---- */
* { scrollbar-width: thin; scrollbar-color: var(--green-faint) transparent; }
*::-webkit-scrollbar { width: 9px; height: 9px; }
*::-webkit-scrollbar-track { background: transparent; }
*::-webkit-scrollbar-thumb {
  background: var(--green-faint);
  border-radius: 8px;
  border: 2px solid transparent;
  background-clip: content-box;
}
*::-webkit-scrollbar-thumb:hover { background: var(--green-dim); background-clip: content-box; }

/* ---- CRT scanline / flicker overlay ---- */
.crt {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 999;
  background: repeating-linear-gradient(
    to bottom,
    rgba(0, 0, 0, 0) 0px,
    rgba(0, 0, 0, 0) 2px,
    rgba(0, 0, 0, 0.10) 3px
  );
  mix-blend-mode: overlay;
  opacity: 0.5;
  animation: flicker 6.5s infinite steps(60);
}
@keyframes flicker {
  0%, 96%, 100% { opacity: 0.5; }
  97% { opacity: 0.38; }
  98% { opacity: 0.55; }
}
@media (prefers-reduced-motion: reduce) {
  .crt { animation: none; }
}

/* ---- shared prompt / dim tokens ---- */
.prompt {
  color: var(--green-bright);
  font-weight: 600;
  text-shadow: 0 0 8px rgba(92, 255, 176, 0.35);
}
.prompt-inline {
  color: var(--green-dim);
  font-size: 0.85em;
  white-space: nowrap;
}
.dim { color: var(--green-dim); }
.arg { color: var(--green-mid); }
.path { color: var(--green-mid); }

.cursor-blink {
  display: inline-block;
  color: var(--green-bright);
  animation: blink 1.1s steps(1) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

/* ---- glass panel base ---- */
.glass {
  background: var(--bg-panel);
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  border: 1px solid var(--glass-border);
  box-shadow:
    0 0 0 1px rgba(0,0,0,0.2),
    0 20px 60px rgba(0,0,0,0.45),
    inset 0 0 40px rgba(57, 201, 138, 0.03);
}

/* ================= layout shell ================= */

.app {
  height: 100vh;
  display: flex;
  flex-direction: column;
  padding: 14px;
  gap: 10px;
}

.titlebar {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 9px 16px;
  border-radius: var(--radius-sm);
  background: rgba(8, 16, 12, 0.6);
  border: 1px solid var(--glass-border);
  color: var(--green-dim);
  font-size: 12.5px;
  letter-spacing: 0.2px;
}
.titlebar-dots { display: flex; gap: 6px; }
.titlebar-dots span {
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--green-faint);
  box-shadow: inset 0 0 0 1px rgba(94,255,175,0.25);
}
.titlebar-dots span:first-child { background: var(--green-mid); }
.titlebar-text { color: var(--text-dim); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.sidebar-toggle {
  display: none;
  background: none; border: 1px solid var(--glass-border);
  color: var(--green-mid); border-radius: 5px;
  width: 28px; height: 26px; font-size: 14px; cursor: pointer;
}

.layout {
  flex: 1 1 auto;
  display: flex;
  gap: 10px;
  min-height: 0;
}

/* ================= sidebar ================= */

.sidebar {
  flex: 0 0 240px;
  display: flex;
  flex-direction: column;
  border-radius: var(--radius);
  padding: 14px 12px;
  min-height: 0;
}

.sidebar-head {
  font-size: 12.5px;
  color: var(--green-dim);
  padding-bottom: 10px;
  margin-bottom: 6px;
  border-bottom: 1px solid var(--glass-border);
}

.forum-list {
  flex: 1 1 auto;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding-right: 2px;
}

.forum-item {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1px;
  background: none;
  border: 1px solid transparent;
  border-left: 2px solid transparent;
  color: var(--text-dim);
  text-align: left;
  padding: 7px 9px;
  border-radius: 4px;
  cursor: pointer;
  font-family: var(--mono);
  font-size: 13.5px;
  width: 100%;
}
.forum-item:hover {
  background: rgba(94, 255, 175, 0.06);
  border-left-color: var(--green-dim);
  color: var(--text);
}
.forum-item.active {
  background: rgba(94, 255, 175, 0.10);
  border-left-color: var(--green-bright);
  color: var(--green-bright);
}
.forum-item .fname::before { content: "# "; color: var(--green-dim); }
.forum-item .fdesc {
  font-size: 11px;
  color: var(--green-dim);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}

.cmd-btn {
  margin-top: 10px;
  flex: 0 0 auto;
  background: rgba(57, 201, 138, 0.08);
  border: 1px dashed var(--glass-border-hi);
  color: var(--green-mid);
  font-family: var(--mono);
  font-size: 12.5px;
  padding: 8px 10px;
  border-radius: 6px;
  cursor: pointer;
  text-align: left;
}
.cmd-btn:hover { background: rgba(57, 201, 138, 0.16); color: var(--green-bright); }
.cmd-btn.ghost { background: transparent; border-style: solid; color: var(--text-dim); }
.cmd-btn.ghost:hover { color: var(--text); border-color: var(--glass-border-hi); }

.sidebar-foot {
  flex: 0 0 auto;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--glass-border);
}
.whoami-row { font-size: 12px; color: var(--green-dim); margin-bottom: 6px; }
.username-input {
  width: 100%;
  background: rgba(0,0,0,0.35);
  border: 1px solid var(--glass-border);
  color: var(--green-bright);
  font-family: var(--mono);
  font-size: 13px;
  padding: 6px 8px;
  border-radius: 5px;
  outline: none;
}
.username-input:focus { border-color: var(--glass-border-hi); }

/* ================= main panel ================= */

.main {
  flex: 1 1 auto;
  display: flex;
  flex-direction: column;
  border-radius: var(--radius);
  min-width: 0;
  min-height: 0;
  overflow: hidden;
}

.main-head {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 13px 16px;
  border-bottom: 1px solid var(--glass-border);
  flex-wrap: wrap;
}
.main-head-cmd {
  font-size: 13.5px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  min-width: 0;
}

.filter-wrap {
  display: flex;
  align-items: center;
  gap: 6px;
  background: rgba(0,0,0,0.3);
  border: 1px solid var(--glass-border);
  border-radius: 5px;
  padding: 4px 8px;
}
.filter-wrap input {
  background: none;
  border: none;
  outline: none;
  color: var(--text);
  font-family: var(--mono);
  font-size: 12.5px;
  width: 150px;
}
.filter-wrap input::placeholder { color: var(--green-faint); }
.filter-count { font-size: 11px; color: var(--green-dim); min-width: 14px; }

/* ---- message log ---- */

.message-log {
  flex: 1 1 auto;
  overflow-y: auto;
  padding: 10px 6px;
}

.message {
  padding: 8px 12px;
  margin: 0 6px 2px;
  border-left: 2px solid var(--green-faint);
  border-radius: 0 4px 4px 0;
  transition: background 0.12s ease, border-color 0.12s ease;
}
.message:hover {
  background: rgba(94, 255, 175, 0.045);
  border-left-color: var(--green-mid);
}
.message.filtered-out { display: none; }

.msg-meta {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-size: 11.5px;
  color: var(--green-dim);
  margin-bottom: 3px;
  flex-wrap: wrap;
}
.msg-timestamp::before { content: "["; }
.msg-timestamp::after { content: "]"; }
.msg-author {
  color: var(--green-bright);
  font-weight: 600;
}
.msg-author::after { content: " ~$"; color: var(--green-dim); font-weight: 400; }

.msg-content {
  color: var(--text);
  overflow-wrap: anywhere;
}
.msg-content > *:first-child { margin-top: 0; }
.msg-content > *:last-child { margin-bottom: 0; }
.msg-content p { margin: 0.35em 0; }
.msg-content a { color: #7CE8FF; text-decoration: underline dotted; text-underline-offset: 2px; }
.msg-content a:hover { color: #b3f4ff; }
.msg-content code {
  background: rgba(0,0,0,0.45);
  border: 1px solid var(--glass-border);
  color: var(--green-bright);
  padding: 1px 5px;
  border-radius: 4px;
  font-size: 0.92em;
}
.msg-content pre {
  background: rgba(0,0,0,0.5);
  border: 1px solid var(--glass-border);
  border-radius: 6px;
  padding: 10px 12px;
  overflow-x: auto;
}
.msg-content pre code { background: none; border: none; padding: 0; }
.msg-content blockquote {
  margin: 0.4em 0;
  padding-left: 10px;
  border-left: 2px solid var(--green-dim);
  color: var(--text-dim);
}
.msg-content ul, .msg-content ol { padding-left: 1.3em; margin: 0.35em 0; }
.msg-content img.msg-inline-img {
  max-width: min(420px, 100%);
  max-height: 340px;
  border-radius: 6px;
  border: 1px solid var(--glass-border);
  margin-top: 6px;
  display: block;
}
.msg-content hr { border: none; border-top: 1px solid var(--glass-border); margin: 0.6em 0; }

.attached-image {
  margin-top: 6px;
  max-width: min(420px, 100%);
  max-height: 340px;
  border-radius: 6px;
  border: 1px solid var(--glass-border);
  display: block;
}

/* ---- link embed card ---- */
.embed-card {
  display: flex;
  gap: 10px;
  margin-top: 8px;
  max-width: 480px;
  border: 1px solid var(--glass-border);
  border-radius: 7px;
  padding: 9px;
  background: rgba(0,0,0,0.28);
  text-decoration: none !important;
  transition: border-color 0.12s ease, background 0.12s ease;
}
.embed-card:hover { border-color: var(--glass-border-hi); background: rgba(0,0,0,0.4); }
.embed-card img {
  width: 64px; height: 64px;
  object-fit: cover;
  border-radius: 4px;
  border: 1px solid var(--glass-border);
  flex: 0 0 auto;
}
.embed-body { min-width: 0; display: flex; flex-direction: column; justify-content: center; gap: 2px; }
.embed-site { font-size: 10.5px; color: var(--green-dim); text-transform: uppercase; letter-spacing: 0.4px; }
.embed-title { font-size: 12.5px; color: var(--green-bright); font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.embed-desc { font-size: 11.5px; color: var(--text-dim); overflow: hidden; text-overflow: ellipsis; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }

.log-empty {
  color: var(--green-dim);
  font-size: 13px;
  padding: 30px 16px;
  text-align: center;
}
.log-empty .prompt { display: block; margin-bottom: 6px; }

/* ---- composer ---- */

.composer {
  flex: 0 0 auto;
  border-top: 1px solid var(--glass-border);
  padding: 10px 14px 12px;
  background: rgba(0,0,0,0.15);
}
.composer-row {
  display: flex;
  align-items: flex-start;
  gap: 8px;
}
.composer-row .prompt { white-space: nowrap; padding-top: 6px; font-size: 13px; }
#messageInput {
  flex: 1 1 auto;
  resize: none;
  background: none;
  border: none;
  outline: none;
  color: var(--text);
  font-family: var(--mono);
  font-size: 13.5px;
  line-height: 1.5;
  padding: 5px 2px;
  max-height: 160px;
  caret-color: var(--green-bright);
}
#messageInput::placeholder { color: var(--green-faint); }

.composer-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 6px;
}
.attach-btn {
  color: var(--green-dim);
  font-size: 12px;
  cursor: pointer;
  border: 1px solid var(--glass-border);
  padding: 5px 9px;
  border-radius: 5px;
}
.attach-btn:hover { color: var(--amber); border-color: var(--glass-border-hi); }
.image-preview-name { font-size: 11.5px; color: var(--amber); max-width: 160px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.clear-image-btn {
  background: none; border: 1px solid var(--glass-border); color: var(--danger);
  border-radius: 5px; width: 22px; height: 22px; cursor: pointer; font-size: 12px; line-height: 1;
}
.spacer { flex: 1 1 auto; }
.composer-error { color: var(--danger); font-size: 12px; }

.send-btn {
  background: rgba(57, 201, 138, 0.14);
  border: 1px solid var(--glass-border-hi);
  color: var(--green-bright);
  font-family: var(--mono);
  font-weight: 600;
  font-size: 12.5px;
  padding: 7px 14px;
  border-radius: 6px;
  cursor: pointer;
  letter-spacing: 0.3px;
}
.send-btn:hover { background: rgba(57, 201, 138, 0.24); }
.send-btn:disabled { opacity: 0.5; cursor: default; }

.hidden { display: none !important; }

/* ================= modal ================= */

.modal {
  position: fixed;
  inset: 0;
  background: rgba(2, 6, 4, 0.6);
  backdrop-filter: blur(3px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 500;
  padding: 20px;
}
.modal-box {
  width: 100%;
  max-width: 420px;
  border-radius: var(--radius);
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.modal-head { font-size: 13px; margin-bottom: 4px; word-break: break-all; }
.modal-label { font-size: 11.5px; color: var(--green-dim); margin-top: 6px; }
.modal-box input,
.modal-box textarea {
  background: rgba(0,0,0,0.35);
  border: 1px solid var(--glass-border);
  color: var(--text);
  font-family: var(--mono);
  font-size: 13px;
  padding: 8px 9px;
  border-radius: 5px;
  outline: none;
  resize: vertical;
  width: 100%;
}
.modal-box input:focus,
.modal-box textarea:focus { border-color: var(--glass-border-hi); }
.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 10px;
}
.modal-actions .cmd-btn { margin-top: 0; }

/* ================= responsive ================= */

@media (max-width: 820px) {
  .app { padding: 8px; gap: 8px; }
  .sidebar-toggle { display: inline-flex; align-items: center; justify-content: center; }
  .layout { position: relative; }
  .sidebar {
    position: absolute;
    z-index: 100;
    top: 0; left: 0; bottom: 0;
    width: 78vw;
    max-width: 280px;
    transform: translateX(calc(-100% - 12px));
    transition: transform 0.18s ease;
  }
  .sidebar.open { transform: translateX(0); }
  .titlebar-text { font-size: 11.5px; }
  .filter-wrap input { width: 100px; }
}