/* PC-NET CRT Terminal Styles */
:root {
  --crt-bg: #050802;
  --crt-fg: #7eff7e;
  --crt-fg-dim: #3aa83a;
  --crt-accent: #c0ffc0;
  --crt-warn: #ffe060;
  --crt-error: #ff6464;
  --crt-shadow: rgba(126, 255, 126, 0.55);
  --scanline: 0.18;
}

[data-color="amber"] {
  --crt-fg: #ffb949;
  --crt-fg-dim: #b06f12;
  --crt-accent: #ffe1a0;
  --crt-shadow: rgba(255, 185, 73, 0.55);
}
[data-color="white"] {
  --crt-fg: #e8f3ff;
  --crt-fg-dim: #6f7d90;
  --crt-accent: #ffffff;
  --crt-shadow: rgba(220, 235, 255, 0.45);
}

* { box-sizing: border-box; }

html, body {
  margin: 0; padding: 0;
  width: 100%; height: 100%;
  background: #000;
  overflow: hidden;
  font-family: "MS Gothic", "Osaka-mono", "Courier New", monospace;
  color: var(--crt-fg);
}

/* Bezel - CRT monitor housing */
.bezel {
  position: fixed; inset: 0;
  background:
    radial-gradient(ellipse at center, #1a1a1a 0%, #0a0a0a 60%, #000 100%);
  display: flex; align-items: center; justify-content: center;
  padding: 24px;
}

.screen {
  position: relative;
  width: min(100%, 1200px);
  height: min(100%, 820px);
  background: var(--crt-bg);
  border-radius: 28px;
  box-shadow:
    inset 0 0 80px rgba(0,0,0,0.85),
    inset 0 0 200px rgba(0,0,0,0.6),
    0 0 0 6px #0e0e0e,
    0 0 0 14px #1a1a1a,
    0 0 0 16px #2a2a2a,
    0 30px 80px rgba(0,0,0,0.9);
  overflow: hidden;
}

/* Curvature on the screen */
.screen-inner {
  position: absolute; inset: 0;
  padding: 28px 32px;
  font-size: 16px;
  line-height: 1.5;
  letter-spacing: 0.02em;
  color: var(--crt-fg);
  text-shadow: 0 0 4px var(--crt-shadow), 0 0 12px var(--crt-shadow);
  overflow: hidden;
  /* slight barrel curve */
  border-radius: 28px;
}

/* Scanlines */
.screen::after {
  content: "";
  position: absolute; inset: 0;
  background:
    repeating-linear-gradient(
      to bottom,
      rgba(0,0,0,0) 0px,
      rgba(0,0,0,0) 2px,
      rgba(0,0,0,calc(var(--scanline))) 2px,
      rgba(0,0,0,calc(var(--scanline))) 3px
    );
  pointer-events: none;
  mix-blend-mode: multiply;
  border-radius: 28px;
}
[data-scanlines="off"] .screen::after { display: none; }

/* Vignette + flicker */
.screen::before {
  content: "";
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse at center, transparent 50%, rgba(0,0,0,0.55) 100%);
  pointer-events: none;
  border-radius: 28px;
  z-index: 2;
  animation: flicker 4s infinite;
}
@keyframes flicker {
  0%,100% { opacity: 1; }
  47% { opacity: 1; }
  48% { opacity: 0.92; }
  49% { opacity: 1; }
  72% { opacity: 0.96; }
  73% { opacity: 1; }
}

/* Power LED */
.power-led {
  position: absolute;
  bottom: -10px; right: 40px;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: #2aff5a;
  box-shadow: 0 0 8px #2aff5a, 0 0 16px #2aff5a;
  z-index: 5;
}
.brand-tag {
  position: absolute;
  bottom: -22px; left: 40px;
  font-family: "MS Gothic", monospace;
  color: #555;
  font-size: 11px;
  letter-spacing: 0.3em;
  z-index: 5;
}

/* Common terminal text */
.t-line { white-space: pre-wrap; word-break: break-all; }
.t-dim { color: var(--crt-fg-dim); }
.t-accent { color: var(--crt-accent); font-weight: bold; }
.t-warn { color: var(--crt-warn); }
.t-err { color: var(--crt-error); }
.t-inv { background: var(--crt-fg); color: var(--crt-bg); padding: 0 4px; }

.cursor {
  display: inline-block;
  width: 0.6em; height: 1em;
  background: var(--crt-fg);
  vertical-align: text-bottom;
  margin-left: 1px;
  animation: blink 1s steps(2) infinite;
  box-shadow: 0 0 6px var(--crt-shadow);
}
@keyframes blink { 50% { opacity: 0; } }

/* Connect screen */
.connect-screen {
  height: 100%;
  display: flex; flex-direction: column;
}
.connect-header {
  border: 1px solid var(--crt-fg-dim);
  padding: 14px 18px;
  margin-bottom: 18px;
}
.connect-header .title {
  font-size: 22px;
  letter-spacing: 0.2em;
  font-weight: bold;
  color: var(--crt-accent);
}
.connect-header .sub {
  color: var(--crt-fg-dim);
  font-size: 13px;
  margin-top: 4px;
  letter-spacing: 0.1em;
}

.field-row {
  display: flex;
  gap: 14px;
  margin: 6px 0;
  align-items: center;
}
.field-label {
  width: 14ch;
  color: var(--crt-fg-dim);
}
.field-value {
  color: var(--crt-accent);
}

.term-input {
  background: transparent;
  border: none;
  outline: none;
  font-family: inherit;
  font-size: inherit;
  color: var(--crt-fg);
  text-shadow: inherit;
  caret-color: transparent;
  padding: 0;
  letter-spacing: inherit;
  width: 30ch;
}
.input-line {
  display: inline-flex;
  align-items: baseline;
}

.connect-btn {
  background: transparent;
  border: 1px solid var(--crt-fg);
  color: var(--crt-fg);
  font-family: inherit;
  font-size: 16px;
  padding: 8px 26px;
  letter-spacing: 0.3em;
  cursor: pointer;
  text-shadow: inherit;
  margin-top: 10px;
}
.connect-btn:hover, .connect-btn:focus {
  background: var(--crt-fg);
  color: var(--crt-bg);
  text-shadow: none;
  outline: none;
}
.connect-btn:disabled { opacity: 0.4; cursor: wait; }

.handshake-log {
  flex: 1;
  border: 1px solid var(--crt-fg-dim);
  padding: 14px 18px;
  margin-top: 18px;
  overflow: hidden;
  position: relative;
  font-size: 14px;
}
.handshake-log .phase {
  margin-bottom: 4px;
}
.signal-meter {
  display: flex;
  gap: 3px;
  margin-top: 12px;
  align-items: flex-end;
  height: 36px;
}
.signal-meter .bar {
  width: 8px;
  background: var(--crt-fg-dim);
  transition: height 100ms, background 100ms;
}
.signal-meter .bar.on { background: var(--crt-fg); box-shadow: 0 0 6px var(--crt-shadow); }

/* MENU LAYOUT */
.menu-shell {
  height: 100%;
  display: flex; flex-direction: column;
}
.menu-topbar {
  display: flex; justify-content: space-between;
  border-bottom: 1px solid var(--crt-fg-dim);
  padding-bottom: 6px;
  margin-bottom: 12px;
  font-size: 13px;
  color: var(--crt-fg-dim);
  letter-spacing: 0.1em;
}
.menu-title {
  color: var(--crt-accent);
  font-size: 18px;
  letter-spacing: 0.25em;
  margin: 6px 0 14px 0;
  font-weight: bold;
}
.menu-body {
  flex: 1;
  overflow: hidden;
  position: relative;
}
.menu-foot {
  border-top: 1px solid var(--crt-fg-dim);
  margin-top: 12px;
  padding-top: 8px;
  font-size: 13px;
  color: var(--crt-fg-dim);
  display: flex; justify-content: space-between;
}
.prompt-line {
  margin-top: 10px;
  display: flex; align-items: baseline;
}
.prompt-arrow { color: var(--crt-accent); margin-right: 8px; }

.menu-table {
  width: 100%;
  border-collapse: collapse;
}
.menu-table td {
  padding: 6px 10px;
  border-bottom: 1px dashed rgba(126,255,126,0.2);
}
[data-color="amber"] .menu-table td { border-bottom-color: rgba(255,185,73,0.2); }
[data-color="white"] .menu-table td { border-bottom-color: rgba(220,235,255,0.2); }

.menu-table tr.sel td {
  background: var(--crt-fg);
  color: var(--crt-bg);
  text-shadow: none;
}
.menu-table .num { width: 4ch; color: var(--crt-accent); }
.menu-table .nm { width: 24ch; }
.menu-table .info { color: var(--crt-fg-dim); font-size: 13px; }
.menu-table tr.sel .info { color: var(--crt-bg); }
.menu-table tr.sel .num { color: var(--crt-bg); }

.list-row {
  display: grid;
  grid-template-columns: 6ch 12ch 1fr 14ch;
  gap: 12px;
  padding: 4px 8px;
  border-bottom: 1px dashed rgba(126,255,126,0.18);
  cursor: pointer;
}
.list-row.sel {
  background: var(--crt-fg);
  color: var(--crt-bg);
  text-shadow: none;
}
.list-row.unread .col-from::before {
  content: "*";
  color: var(--crt-warn);
  margin-right: 4px;
}
.list-row.sel .col-from::before { color: var(--crt-bg); }
.list-row .col-no { color: var(--crt-fg-dim); }
.list-row.sel .col-no { color: var(--crt-bg); }
.list-row .col-date { color: var(--crt-fg-dim); font-size: 13px; }
.list-row.sel .col-date { color: var(--crt-bg); }

.post-view {
  border: 1px solid var(--crt-fg-dim);
  padding: 12px 16px;
  height: 100%;
  display: flex; flex-direction: column;
}
.post-meta {
  border-bottom: 1px solid var(--crt-fg-dim);
  padding-bottom: 6px; margin-bottom: 10px;
  font-size: 14px;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 4px 14px;
}
.post-meta .k { color: var(--crt-fg-dim); }
.post-body { flex: 1; overflow: auto; white-space: pre-wrap; }

/* Chat */
.chat-shell { display: grid; grid-template-columns: 1fr 22ch; gap: 14px; height: 100%; }
.chat-log {
  border: 1px solid var(--crt-fg-dim);
  padding: 10px 14px;
  overflow-y: auto;
  display: flex; flex-direction: column;
}
.chat-list { flex: 1; }
.chat-msg { margin-bottom: 4px; }
.chat-msg .h { color: var(--crt-accent); }
.chat-msg .t { color: var(--crt-fg-dim); font-size: 12px; }
.chat-input-row {
  border-top: 1px solid var(--crt-fg-dim);
  padding-top: 8px;
  display: flex; align-items: baseline;
  gap: 8px;
}
.chat-input-row .term-input { width: 100%; }
.user-pane {
  border: 1px solid var(--crt-fg-dim);
  padding: 10px 12px;
  font-size: 14px;
}
.user-pane .head { color: var(--crt-accent); margin-bottom: 6px; }

/* 画面切り替え: 上から下へスクロール表示 (CUIっぽい縦方向スクロール) */
.power-on {
  animation: scrollDown 0.55s steps(18, end);
  transform-origin: top center;
}
@keyframes scrollDown {
  0%   { clip-path: inset(0 0 100% 0); opacity: 0.85; }
  100% { clip-path: inset(0 0 0 0);    opacity: 1; }
}

/* Hide scrollbars but allow scroll */
.menu-body::-webkit-scrollbar,
.post-body::-webkit-scrollbar,
.chat-log::-webkit-scrollbar { width: 6px; }
.menu-body::-webkit-scrollbar-thumb,
.post-body::-webkit-scrollbar-thumb,
.chat-log::-webkit-scrollbar-thumb { background: var(--crt-fg-dim); }

.help-hint kbd {
  display: inline-block;
  border: 1px solid var(--crt-fg-dim);
  padding: 0 5px;
  margin: 0 2px;
  font-family: inherit;
  font-size: 12px;
}