/*
 * ag-player.css — Afterglow 共用音訊播放器樣式
 * 適用於：white-noise.html、voice.html
 * 設計原則：安靜、克制、乾淨，不做成商業音樂 App 風格
 */

/* ── 頁面 Logo（固定右上）── */
.ag-page-logo {
  position: fixed;
  top: calc(16px + env(safe-area-inset-top, 0px));
  right: 20px;
  z-index: 100;
  display: block;
  text-decoration: none;
}
.ag-page-logo img {
  display: block;
  width: 110px;
  max-width: 38vw;
  height: auto;
  opacity: 0.85;
}

/* ── 頁面標題區 ── */
.ag-page-title-block {
  padding: calc(88px + env(safe-area-inset-top, 0px)) 20px 8px;
  flex-shrink: 0;
  box-sizing: border-box;
}
.ag-page-title {
  font-size: 13px;
  color: rgba(255,255,255,0.35);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin: 0;
}
.ag-page-title strong {
  color: rgba(255,255,255,0.55);
  font-weight: 500;
}

/* ── 播放器主容器 ── */
.ag-player {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 40px 28px;
  box-sizing: border-box;
  gap: 0;
}

/* ── 視覺元素容器（orb / visualizer）── */
.ag-player-visual {
  position: relative;
  width: 200px;
  height: 200px;
  overflow: visible;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 32px;
  flex-shrink: 0;
}

/* ── 白噪音：脈衝環 ── */
.ag-player-visual--noise .ag-visual-ring {
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255,255,255,0.06) 0%, rgba(0,0,0,0) 70%);
  position: absolute;
  transition: box-shadow 0.5s ease;
}
.ag-player-visual--noise .ag-visual-ring::before,
.ag-player-visual--noise .ag-visual-ring::after {
  content: '';
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.1);
}
.ag-player-visual--noise .ag-visual-ring::before {
  width: 100%; height: 100%;
  animation: agPulseRing 4s infinite linear;
}
.ag-player-visual--noise .ag-visual-ring::after {
  width: 80%; height: 80%;
  border-color: rgba(255,255,255,0.15);
  animation: agPulseRing 4s infinite linear reverse;
}
.ag-player-visual--noise.playing .ag-visual-ring {
  box-shadow: 0 0 40px rgba(255,255,255,0.08);
}
.ag-player-visual--noise.playing .ag-visual-ring::before {
  animation-duration: 3s;
  border-color: rgba(255,255,255,0.25);
}
@keyframes agPulseRing {
  0%   { transform: translate(-50%,-50%) scale(0.85) rotate(0deg);   opacity: 0.3; }
  50%  { transform: translate(-50%,-50%) scale(1.08) rotate(180deg); opacity: 0.55; }
  100% { transform: translate(-50%,-50%) scale(0.85) rotate(360deg); opacity: 0.3; }
}
.ag-visual-icon {
  width: 46px;
  height: 46px;
  z-index: 2;
  opacity: 0.72;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}
.ag-visual-icon svg { width: 100%; height: 100%; display: block; }

/* ── 語音引導：霓虹光環 ── */
.ag-player-visual--voice .ag-orb-ring {
  width: 200px;
  height: 200px;
  border-radius: 50%;
  border: 1.5px solid #bd00ff;
  box-shadow:
    0 0 12px rgba(189,0,255,0.6),
    0 0 28px rgba(189,0,255,0.3),
    inset 0 0 12px rgba(189,0,255,0.15);
  background: transparent;
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  transition: box-shadow 0.6s ease;
  will-change: box-shadow;
  pointer-events: none;
}
.ag-player-visual--voice.playing .ag-orb-ring {
  box-shadow:
    0 0 18px rgba(189,0,255,0.8),
    0 0 40px rgba(189,0,255,0.4),
    inset 0 0 18px rgba(189,0,255,0.2);
}

/* ── 曲目資訊 ── */
.ag-track-info {
  text-align: center;
  margin-bottom: 28px;
}
.ag-track-title {
  font-size: 20px;
  font-weight: 300;
  letter-spacing: 0.06em;
  color: rgba(255,255,255,0.90);
  margin: 0 0 8px;
}
.ag-track-hint {
  font-size: 13px;
  color: rgba(255,255,255,0.40);
  letter-spacing: 0.04em;
  line-height: 1.6;
  margin: 0;
}

/* ── 進度條 ── */
.ag-progress-wrap {
  width: 100%;
  max-width: 320px;
  margin-bottom: 10px;
}
.ag-progress-bar {
  width: 100%;
  height: 4px;
  border-radius: 2px;
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
  outline: none;
  background: rgba(255,255,255,0.08);
}
.ag-progress-bar::-webkit-slider-runnable-track {
  height: 4px;
  border-radius: 2px;
  background: linear-gradient(to right,
    rgba(255,255,255,0.65) var(--progress, 0%),
    rgba(255,255,255,0.08) var(--progress, 0%));
}
/* 語音引導頁面覆寫：紫色進度 */
.ag-player--voice .ag-progress-bar::-webkit-slider-runnable-track {
  background: linear-gradient(to right,
    #bd00ff var(--progress, 0%),
    rgba(255,255,255,0.08) var(--progress, 0%));
  box-shadow: 0 0 6px rgba(189,0,255,0.5);
}
.ag-progress-bar::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(255,255,255,0.9);
  border: 1.5px solid rgba(255,255,255,0.6);
  cursor: pointer;
  margin-top: -4px;
}
.ag-player--voice .ag-progress-bar::-webkit-slider-thumb {
  background: #bd00ff;
  box-shadow: 0 0 6px rgba(189,0,255,0.9), 0 0 14px rgba(189,0,255,0.5);
}
.ag-progress-times {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  color: rgba(255,255,255,0.28);
  margin-top: 6px;
  letter-spacing: 0.04em;
}

/* ── 控制列 ── */
.ag-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 36px;
  margin-top: 20px;
}
.ag-ctrl-btn {
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  color: rgba(255,255,255,0.5);
  line-height: 1;
  transition: color 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
}
.ag-ctrl-btn:hover { color: rgba(255,255,255,0.85); }

/* 主播放按鈕 */
.ag-ctrl-btn.ag-play-btn {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  border: 1.5px solid rgba(255,255,255,0.55);
  color: rgba(255,255,255,0.9);
  transition: border-color 0.2s, color 0.2s, box-shadow 0.2s, background 0.2s;
}
.ag-ctrl-btn.ag-play-btn:hover {
  border-color: rgba(255,255,255,0.9);
  background: rgba(255,255,255,0.06);
}
.ag-ctrl-btn.ag-play-btn.active {
  border-color: rgba(255,255,255,0.9);
  background: rgba(255,255,255,0.10);
}
/* 語音引導：紫色播放按鈕 */
.ag-player--voice .ag-ctrl-btn.ag-play-btn {
  border-color: rgba(189,0,255,0.5);
  color: rgba(189,0,255,0.9);
  box-shadow: 0 0 16px rgba(189,0,255,0.2);
}
.ag-player--voice .ag-ctrl-btn.ag-play-btn:hover {
  border-color: rgba(189,0,255,0.9);
  box-shadow: 0 0 28px rgba(189,0,255,0.4);
  color: #bd00ff;
  background: none;
}
.ag-player--voice .ag-ctrl-btn.ag-play-btn.active {
  border-color: rgba(189,0,255,0.9);
  box-shadow: 0 0 28px rgba(189,0,255,0.4);
  background: rgba(189,0,255,0.08);
}

/* ── 音量控制（白噪音專用）── */
.ag-volume-container {
  width: 220px;
  display: flex;
  align-items: center;
  gap: 12px;
  color: rgba(255,255,255,0.4);
  margin-top: 28px;
}
.ag-volume-slider {
  -webkit-appearance: none;
  width: 100%;
  height: 3px;
  background: rgba(255,255,255,0.18);
  border-radius: 2px;
  outline: none;
}
.ag-volume-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: #fff;
  cursor: pointer;
  transition: transform 0.2s;
}
.ag-volume-slider::-webkit-slider-thumb:hover { transform: scale(1.2); }

/* ── 狀態文字 ── */
.ag-status-text {
  font-size: 12px;
  color: rgba(255,255,255,0.25);
  text-align: center;
  margin-top: 16px;
  letter-spacing: 0.06em;
}

/* ── 無障礙：減少動態 ── */
@media (prefers-reduced-motion: reduce) {
  .ag-player-visual--noise .ag-visual-ring::before,
  .ag-player-visual--noise .ag-visual-ring::after {
    animation: none;
  }
}