/* DSEG 7-Segment (SIL OFL 1.1) - bundled locally */
@font-face {
  font-family: 'DSEG7 Classic';
  src: url('fonts/DSEG7Classic-Regular.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

:root {
  color-scheme: light dark;
  --bg: #f5f5f5;
  --fg: #1a1a1a;
  --sub: #666;
  --border: #ddd;
  --glow: transparent;
  --font-body: ui-monospace, 'SF Mono', 'Cascadia Mono', Consolas, 'Courier New', monospace;
  --font-digits: ui-monospace, 'SF Mono', 'Cascadia Mono', 'Roboto Mono', Consolas, 'Courier New', monospace;
  --letter: 3px;
  --scale: 1;
}
@media (prefers-color-scheme: dark) {
  :root[data-theme="auto"] {
    --bg: #1a1a1a; --fg: #e0e0e0; --sub: #888; --border: #333;
  }
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0f0f0f; --fg: #e8e8e8; --sub: #888; --border: #2a2a2a;
}
:root[data-theme="green"] {
  color-scheme: dark;
  --bg: #050805; --fg: #39ff77; --sub: #2fa85a;
  --border: #173a1f; --glow: #39ff77; --letter: 6px;
}
:root[data-theme="amber"] {
  color-scheme: dark;
  --bg: #0a0704; --fg: #ffb000; --sub: #a87300;
  --border: #3a2608; --glow: #ffb000; --letter: 5px;
}
:root[data-theme="red"] {
  color-scheme: dark;
  --bg: #0a0404; --fg: #ffc0b8; --sub: #d85858;
  --border: #3a1414; --glow: #ff2020; --letter: 5px;
}
:root[data-theme="pink"] {
  color-scheme: dark;
  --bg: #0a040a; --fg: #ffc8f0; --sub: #c850a0;
  --border: #3a1028; --glow: #ff26b3; --letter: 5px;
}
:root[data-theme="cyber"] {
  color-scheme: dark;
  --bg: #030a06; --fg: #B2FFCA; --sub: #70d090;
  --border: #143a24; --glow: #39ff77; --letter: 6px;
}

:root[data-font="mono"] {
  --font-digits: ui-monospace, 'SF Mono', 'Cascadia Mono', 'Roboto Mono', Consolas, 'Courier New', monospace;
}
:root[data-font="consolas"] {
  --font-digits: 'Consolas', 'Menlo', 'Liberation Mono', monospace;
}
:root[data-font="seg7"] {
  --font-digits: 'DSEG7 Classic', 'Consolas', 'Menlo', monospace;
}
:root[data-size="s"]  { --scale: 0.75; }
:root[data-size="m"]  { --scale: 1; }
:root[data-size="l"]  { --scale: 1.4; }
:root[data-size="xl"] { --scale: 2; }
:root[data-size="max"] { --scale: 1; --letter: 8px; }

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; height: 100%; }
body {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
  padding: max(16px, env(safe-area-inset-top)) max(16px, env(safe-area-inset-right)) max(16px, env(safe-area-inset-bottom)) max(16px, env(safe-area-inset-left));
  -webkit-user-select: none;
  user-select: none;
  -webkit-touch-callout: none;
  overflow: hidden;
  transition: background 0.3s, color 0.3s;
}

:root[data-theme="green"] body::before,
:root[data-theme="amber"] body::before,
:root[data-theme="red"] body::before,
:root[data-theme="pink"] body::before,
:root[data-theme="cyber"] body::before {
  content: "";
  position: fixed; inset: 0;
  background: repeating-linear-gradient(0deg,
    rgba(255,255,255,0.04) 0px, rgba(255,255,255,0.04) 1px,
    transparent 1px, transparent 3px);
  pointer-events: none; z-index: 1;
}

.clock {
  padding: clamp(16px, 4vw, 28px) clamp(24px, 6vw, 40px);
  border: 1px solid var(--border);
  border-radius: 10px;
  text-align: center;
  position: relative;
  z-index: 2;
  cursor: pointer;
}
:root[data-theme="green"] .clock,
:root[data-theme="amber"] .clock,
:root[data-theme="red"] .clock,
:root[data-theme="pink"] .clock,
:root[data-theme="cyber"] .clock {
  border-color: var(--glow);
  box-shadow: 0 0 12px color-mix(in srgb, var(--glow) 35%, transparent),
              inset 0 0 12px color-mix(in srgb, var(--glow) 10%, transparent);
}

.date {
  display: block;
  font-size: calc(clamp(12px, 2.5vw, 16px) * var(--scale));
  color: var(--sub);
  letter-spacing: 1px;
  font-variant-numeric: tabular-nums;
}
.date .num { font-family: var(--font-digits); }

.time {
  font-family: var(--font-digits);
  font-size: calc(clamp(32px, 9vw, 56px) * var(--scale));
  letter-spacing: var(--letter);
  margin-top: 6px;
  font-variant-numeric: tabular-nums;
  position: relative;
}
:root[data-theme="green"] .time,
:root[data-theme="amber"] .time,
:root[data-theme="red"] .time,
:root[data-theme="pink"] .time,
:root[data-theme="cyber"] .time {
  display: inline-block;
}
:root[data-theme="green"] .time::before,
:root[data-theme="amber"] .time::before,
:root[data-theme="red"] .time::before,
:root[data-theme="pink"] .time::before,
:root[data-theme="cyber"] .time::before {
  content: "88:88:88";
  position: absolute;
  inset: 0;
  color: var(--fg);
  opacity: 0.1;
  letter-spacing: var(--letter);
  pointer-events: none;
  font-family: inherit;
}
:root[data-sec="off"][data-theme="green"] .time::before,
:root[data-sec="off"][data-theme="amber"] .time::before,
:root[data-sec="off"][data-theme="red"] .time::before,
:root[data-sec="off"][data-theme="pink"] .time::before,
:root[data-sec="off"][data-theme="cyber"] .time::before {
  content: "88:88";
}

:root[data-theme="green"] .time,
:root[data-theme="amber"] .time,
:root[data-theme="red"] .time,
:root[data-theme="pink"] .time,
:root[data-theme="cyber"] .time {
  text-shadow:
    0 0 4px var(--glow),
    0 0 12px var(--glow),
    0 0 24px color-mix(in srgb, var(--glow) 50%, transparent);
  animation: flicker 4s infinite;
}
:root[data-theme="green"] .date,
:root[data-theme="amber"] .date,
:root[data-theme="red"] .date,
:root[data-theme="pink"] .date,
:root[data-theme="cyber"] .date {
  text-shadow: 0 0 6px var(--glow);
}

/* Pink theme: ムラのある(不均一な)ネオン感を出すため、左右に色味の違うpink層を重ねる */
:root[data-theme="pink"] .time {
  text-shadow:
    0 0 4px var(--glow),
    -1px 0 8px #ff80d0,
    1px 0 8px var(--glow),
    0 0 14px var(--glow),
    0 0 28px color-mix(in srgb, var(--glow) 50%, transparent);
}

/* Red theme: 蛍光レッド。左右にオレンジ寄りの赤層を重ねてムラ感を出す */
:root[data-theme="red"] .time {
  text-shadow:
    0 0 4px var(--glow),
    -1px 0 8px #ff7060,
    1px 0 8px var(--glow),
    0 0 14px var(--glow),
    0 0 28px color-mix(in srgb, var(--glow) 50%, transparent);
}

/* Cyber theme: 蛍光グリーン。白緑の芯に青緑寄りのオフセットを重ねてムラ感を出す */
:root[data-theme="cyber"] .time {
  text-shadow:
    0 0 4px var(--glow),
    -1px 0 8px #80ffb0,
    1px 0 8px var(--glow),
    0 0 14px var(--glow),
    0 0 28px color-mix(in srgb, var(--glow) 50%, transparent);
}
@keyframes flicker {
  0%, 92%, 100% { opacity: 1; }
  93% { opacity: 0.85; }
  94% { opacity: 1; }
  96% { opacity: 0.92; }
}

/* 設定パネル */
.panel {
  position: fixed;
  bottom: max(16px, env(safe-area-inset-bottom));
  left: 50%;
  transform: translateX(-50%) translateY(160%);
  display: grid;
  gap: 6px;
  padding: 10px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  z-index: 10;
  transition: transform 0.25s ease;
  max-width: calc(100vw - 24px);
}
.panel.open { transform: translateX(-50%) translateY(0); }
.panel-row {
  display: flex;
  gap: 6px;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
}
.panel-row .label {
  font-family: var(--font-body);
  font-size: 11px;
  color: var(--sub);
  min-width: 48px;
  text-align: right;
  letter-spacing: 1px;
}
.panel-row .label-inline {
  min-width: auto;
  margin-left: 12px;
}
.panel button {
  font-family: var(--font-body);
  font-size: 12px;
  padding: 5px 10px;
  background: transparent;
  color: var(--fg);
  border: 1px solid var(--border);
  border-radius: 6px;
  cursor: pointer;
  min-width: 44px;
}
.panel button[aria-pressed="true"] {
  background: var(--fg);
  color: var(--bg);
}

/* About モーダル */
.modal-backdrop {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.5);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 16px;
}
.modal-backdrop.open { display: flex; }
.modal {
  background: var(--bg);
  color: var(--fg);
  border: 1px solid var(--border);
  border-radius: 10px;
  max-width: 560px;
  width: 100%;
  max-height: 80vh;
  overflow-y: auto;
  padding: 20px 24px;
  font-family: var(--font-body);
  font-size: 13px;
  line-height: 1.6;
  -webkit-user-select: text;
  user-select: text;
}
.modal h2 {
  font-size: 15px;
  margin: 0 0 4px;
  letter-spacing: 1px;
}
.modal h3 {
  font-size: 13px;
  margin: 16px 0 4px;
  color: var(--sub);
  letter-spacing: 1px;
}
.modal p, .modal pre {
  margin: 4px 0;
  font-size: 12px;
  color: var(--fg);
}
.modal .modal-version {
  color: var(--sub);
  font-size: 11px;
}
.modal .modal-hint {
  color: var(--sub);
  font-size: 11px;
}
.modal pre {
  white-space: pre-wrap;
  word-break: break-word;
  color: var(--sub);
  font-size: 11px;
}
.modal a { color: var(--fg); text-decoration: underline; }
.modal-close {
  float: right;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--fg);
  border-radius: 6px;
  padding: 4px 10px;
  font-size: 12px;
  cursor: pointer;
  font-family: var(--font-body);
}

/* ==== MAX size (PC-only, 画面幅1920px以上で表示) ==== */
:root[data-size="max"] .time {
  font-size: clamp(120px, 40vw, 500px);
}
:root[data-size="max"] .date {
  font-size: clamp(20px, 5vw, 60px);
}
:root[data-size="max"] .clock {
  padding: clamp(20px, 2.5vw, 50px) clamp(30px, 4vw, 80px);
  max-width: 100vw;
  border-width: 2px;
  border-radius: 18px;
}
/* MAX + 発光テーマ: 枠の発光も強化 */
:root[data-size="max"][data-theme="green"] .clock,
:root[data-size="max"][data-theme="amber"] .clock,
:root[data-size="max"][data-theme="red"] .clock,
:root[data-size="max"][data-theme="pink"] .clock,
:root[data-size="max"][data-theme="cyber"] .clock {
  box-shadow:
    0 0 28px color-mix(in srgb, var(--glow) 40%, transparent),
    0 0 64px color-mix(in srgb, var(--glow) 20%, transparent),
    inset 0 0 24px color-mix(in srgb, var(--glow) 12%, transparent);
}
/* MAX + 発光テーマ: 日付の発光も強化 */
:root[data-size="max"][data-theme="green"] .date,
:root[data-size="max"][data-theme="amber"] .date,
:root[data-size="max"][data-theme="red"] .date,
:root[data-size="max"][data-theme="pink"] .date,
:root[data-size="max"][data-theme="cyber"] .date {
  text-shadow:
    0 0 8px var(--glow),
    0 0 20px color-mix(in srgb, var(--glow) 60%, transparent);
  letter-spacing: 3px;
}
/* MAX: スキャンラインをより濃く・粗く(CRTっぽさ強化) */
:root[data-size="max"][data-theme="green"] body::before,
:root[data-size="max"][data-theme="amber"] body::before,
:root[data-size="max"][data-theme="red"] body::before,
:root[data-size="max"][data-theme="pink"] body::before,
:root[data-size="max"][data-theme="cyber"] body::before {
  background: repeating-linear-gradient(0deg,
    rgba(255,255,255,0.08) 0px, rgba(255,255,255,0.08) 2px,
    transparent 2px, transparent 6px);
}
@media (max-width: 1919px) {
  .panel button[data-k="size"][data-v="max"] {
    display: none;
  }
}

/* ==== BG: Ghost (透けてる風) ==== body背景の濃度を段階的に下げる */
:root[data-bg="ghost1"],
:root[data-bg="ghost2"],
:root[data-bg="ghost3"] { background: transparent; }
:root[data-bg="ghost1"] body { background: rgba(0,0,0,0.20); }
:root[data-bg="ghost2"] body { background: rgba(0,0,0,0.02); }
:root[data-bg="ghost3"] body { background: rgba(0,0,0,0.02); }

/* Ghost3: 背景がほぼ完全透明なので、時計本体だけ曇りガラス効果で浮かせる */
:root[data-bg="ghost3"] .clock {
  background: rgba(0,0,0,0.30);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}

/* ==== DATE: Off ==== 日付表示を非表示 */
:root[data-date="off"] .date {
  display: none;
}

/* ==== FX: Off ==== 発光・アニメを全て停止 */
:root[data-fx="off"] .time,
:root[data-fx="off"] .date {
  text-shadow: none !important;
  animation: none !important;
}
:root[data-fx="off"] .clock {
  box-shadow: none !important;
}
:root[data-fx="off"] body::before {
  display: none !important;
}

/* ==== FX: Max ==== 発光強化 + グリッチ + スキャンライン移動 */
:root[data-fx="max"][data-theme="green"] .time,
:root[data-fx="max"][data-theme="amber"] .time,
:root[data-fx="max"][data-theme="red"] .time,
:root[data-fx="max"][data-theme="pink"] .time,
:root[data-fx="max"][data-theme="cyber"] .time {
  text-shadow:
    0 0 4px var(--glow),
    0 0 16px var(--glow),
    0 0 36px var(--glow),
    0 0 72px color-mix(in srgb, var(--glow) 40%, transparent);
  animation: flicker 4s infinite, fxGlitch 5s infinite;
}
/* FX:max + Pink: ムラ感を保ちつつ発光強化 */
:root[data-fx="max"][data-theme="pink"] .time {
  text-shadow:
    0 0 4px var(--glow),
    -1px 0 10px #ff80d0,
    1px 0 10px var(--glow),
    0 0 20px var(--glow),
    0 0 40px var(--glow),
    0 0 80px color-mix(in srgb, var(--glow) 50%, transparent);
}
/* FX:max + Red: ムラ感を保ちつつ発光強化 */
:root[data-fx="max"][data-theme="red"] .time {
  text-shadow:
    0 0 4px var(--glow),
    -1px 0 10px #ff7060,
    1px 0 10px var(--glow),
    0 0 20px var(--glow),
    0 0 40px var(--glow),
    0 0 80px color-mix(in srgb, var(--glow) 50%, transparent);
}
/* FX:max + Cyber: ムラ感を保ちつつ発光強化 */
:root[data-fx="max"][data-theme="cyber"] .time {
  text-shadow:
    0 0 4px var(--glow),
    -1px 0 10px #80ffb0,
    1px 0 10px var(--glow),
    0 0 20px var(--glow),
    0 0 40px var(--glow),
    0 0 80px color-mix(in srgb, var(--glow) 50%, transparent);
}
:root[data-fx="max"][data-theme="green"] .clock,
:root[data-fx="max"][data-theme="amber"] .clock,
:root[data-fx="max"][data-theme="red"] .clock,
:root[data-fx="max"][data-theme="pink"] .clock,
:root[data-fx="max"][data-theme="cyber"] .clock {
  box-shadow:
    0 0 20px color-mix(in srgb, var(--glow) 45%, transparent),
    0 0 48px color-mix(in srgb, var(--glow) 25%, transparent),
    inset 0 0 20px color-mix(in srgb, var(--glow) 15%, transparent);
}
:root[data-fx="max"][data-theme="green"] body::before,
:root[data-fx="max"][data-theme="amber"] body::before,
:root[data-fx="max"][data-theme="red"] body::before,
:root[data-fx="max"][data-theme="pink"] body::before,
:root[data-fx="max"][data-theme="cyber"] body::before {
  animation: scanlineMove 4s linear infinite;
}

/* MAX + FX:max の合わせ技: 枠・文字・日付を全て最大発光へ */
:root[data-size="max"][data-fx="max"][data-theme="green"] .time,
:root[data-size="max"][data-fx="max"][data-theme="amber"] .time {
  text-shadow:
    0 0 8px var(--glow),
    0 0 32px var(--glow),
    0 0 72px var(--glow),
    0 0 144px color-mix(in srgb, var(--glow) 40%, transparent);
}
:root[data-size="max"][data-fx="max"][data-theme="pink"] .time {
  text-shadow:
    0 0 8px var(--glow),
    -2px 0 20px #ff80d0,
    2px 0 20px var(--glow),
    0 0 40px var(--glow),
    0 0 80px var(--glow),
    0 0 160px color-mix(in srgb, var(--glow) 50%, transparent);
}
:root[data-size="max"][data-fx="max"][data-theme="red"] .time {
  text-shadow:
    0 0 8px var(--glow),
    -2px 0 20px #ff7060,
    2px 0 20px var(--glow),
    0 0 40px var(--glow),
    0 0 80px var(--glow),
    0 0 160px color-mix(in srgb, var(--glow) 50%, transparent);
}
:root[data-size="max"][data-fx="max"][data-theme="cyber"] .time {
  text-shadow:
    0 0 8px var(--glow),
    -2px 0 20px #80ffb0,
    2px 0 20px var(--glow),
    0 0 40px var(--glow),
    0 0 80px var(--glow),
    0 0 160px color-mix(in srgb, var(--glow) 50%, transparent);
}
:root[data-size="max"][data-fx="max"][data-theme="green"] .clock,
:root[data-size="max"][data-fx="max"][data-theme="amber"] .clock,
:root[data-size="max"][data-fx="max"][data-theme="red"] .clock,
:root[data-size="max"][data-fx="max"][data-theme="pink"] .clock,
:root[data-size="max"][data-fx="max"][data-theme="cyber"] .clock {
  box-shadow:
    0 0 40px color-mix(in srgb, var(--glow) 55%, transparent),
    0 0 100px color-mix(in srgb, var(--glow) 30%, transparent),
    0 0 200px color-mix(in srgb, var(--glow) 15%, transparent),
    inset 0 0 40px color-mix(in srgb, var(--glow) 18%, transparent);
}
:root[data-size="max"][data-fx="max"][data-theme="green"] .date,
:root[data-size="max"][data-fx="max"][data-theme="amber"] .date,
:root[data-size="max"][data-fx="max"][data-theme="red"] .date,
:root[data-size="max"][data-fx="max"][data-theme="pink"] .date,
:root[data-size="max"][data-fx="max"][data-theme="cyber"] .date {
  text-shadow:
    0 0 12px var(--glow),
    0 0 32px var(--glow),
    0 0 64px color-mix(in srgb, var(--glow) 50%, transparent);
}

@keyframes fxGlitch {
  0%, 80%, 100% { transform: translateX(0); }
  80.5% { transform: translateX(-6px) skewX(2deg); }
  81%   { transform: translateX(8px) skewX(-2deg); }
  81.5% { transform: translateX(-5px) skewX(1deg); }
  82%   { transform: translateX(3px); }
  82.5% { transform: translateX(-2px); }
  83%   { transform: translateX(1px); }
  83.5% { transform: translateX(0); }
}
@keyframes scanlineMove {
  0%   { background-position: 0 0; }
  100% { background-position: 0 6px; }
}

@media (prefers-reduced-motion: reduce) {
  .time { animation: none !important; }
  body, .panel { transition: none !important; }
}

/* ==== Notice (簡易トースト、PiPエラー通知等に使用) ==== */
.notice {
  position: fixed;
  top: max(16px, env(safe-area-inset-top));
  left: 50%;
  transform: translateX(-50%) translateY(-160%);
  background: var(--bg);
  color: var(--fg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px 14px;
  font-family: var(--font-body);
  font-size: 12px;
  letter-spacing: 0.5px;
  z-index: 200;
  transition: transform 0.25s ease;
  max-width: calc(100vw - 32px);
  pointer-events: none;
}
.notice.open { transform: translateX(-50%) translateY(0); }