/* 강의 타이머 — /style.css 위에 덮어씀 */
.nav a.is-on{color:var(--ink);background:var(--paper-2)}

.tapp{max-width:var(--wrap);margin:0 auto;padding:8px var(--gutter) 0;display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:20px;align-items:start}
@media (max-width:980px){.tapp{grid-template-columns:1fr}}

/* ---------- 보드(띄우는 화면) ---------- */
.board{
  --b-bg:#0E1A33;--b-fg:#FFFFFF;--b-soft:rgba(255,255,255,.62);
  --seg-on:#FBBC04;--seg-off:rgba(255,255,255,.06);--seg-hot:#FF6B5E;
  --meter:#4285F4;--btn:#FFFFFF;--btn-fg:#0E1A33;
  position:relative;overflow:hidden;border-radius:32px;background:var(--b-bg);color:var(--b-fg);
  padding:clamp(20px,3.4vw,40px) clamp(16px,3vw,40px) clamp(22px,3vw,34px);
  display:flex;flex-direction:column;align-items:center;gap:clamp(10px,1.6vw,18px);
  transition:background-color .4s ease;
}
.board[data-skin="board"]{--b-bg:#1E4636;--b-fg:#F4F1E6;--b-soft:rgba(244,241,230,.65);--seg-on:#F4F1E6;--seg-off:rgba(244,241,230,.07);--seg-hot:#FFB4A8;--meter:#FBBC04;--btn:#F4F1E6;--btn-fg:#1E4636}
.board[data-skin="paper"]{--b-bg:#FFFFFF;--b-fg:#1B2433;--b-soft:#556072;--seg-on:#1B2433;--seg-off:rgba(27,36,51,.06);--seg-hot:#D93025;--meter:#4285F4;--btn:#1B2433;--btn-fg:#FFFFFF;box-shadow:inset 0 0 0 2px var(--line)}
.board:focus{outline:none}

.board-title{
  width:100%;max-width:900px;text-align:center;background:transparent;border:0;border-radius:14px;
  color:var(--b-fg);font:inherit;font-weight:900;font-size:clamp(24px,3.6vw,46px);letter-spacing:-.03em;padding:6px 12px;
}
.board-title:hover{background:color-mix(in srgb,var(--b-fg) 7%,transparent)}
.board-title:focus-visible{outline:3px solid var(--seg-on);outline-offset:0}

.clock-wrap{width:100%;display:flex;flex-direction:column;align-items:center}
.clock{width:100%;display:flex;justify-content:center}
.clock svg{width:100%;max-width:980px;height:auto;max-height:48vh;display:block}
.clock .on{fill:var(--seg-on);transition:fill .25s ease}
.clock .off{fill:var(--seg-off)}
.board.hot .clock .on{fill:var(--seg-hot)}
.board[data-state="done"] .clock svg{animation:blink 1s steps(2,start) 6}
@keyframes blink{to{visibility:hidden}}

/* 분/초 ▲▼ — 멈춰 있을 때만 */
.nudge{display:flex;justify-content:space-around;width:min(100%,980px);padding:0 9%}
.nudge button{width:52px;height:30px;border:0;border-radius:10px;background:transparent;color:var(--b-soft);font-size:16px;cursor:pointer}
.nudge button:hover{background:color-mix(in srgb,var(--b-fg) 10%,transparent);color:var(--b-fg)}
.nudge button:focus-visible{outline:2px solid var(--seg-on)}
.board[data-state="running"] .nudge,.board[data-state="done"] .nudge,.board[data-mode="until"] .nudge{visibility:hidden}

.meter{width:min(100%,980px);height:8px;border-radius:999px;background:var(--seg-off);overflow:hidden}
.meter i{display:block;height:100%;width:100%;background:var(--meter);border-radius:inherit;transform-origin:left center;transition:transform .25s linear,background-color .3s}
.board.hot .meter i{background:var(--seg-hot)}

.board-sub{margin:0;color:var(--b-soft);font-weight:700;font-size:clamp(14px,1.4vw,18px);min-height:1.6em;text-align:center}

.controls{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin-top:4px}
.c-btn{font:inherit;font-weight:800;font-size:17px;border:0;border-radius:999px;padding:13px 24px;cursor:pointer;transition:transform .12s ease}
.c-btn:active{transform:scale(.96)}
.c-btn:focus-visible{outline:3px solid var(--seg-on);outline-offset:3px}
.c-go{min-width:150px;background:var(--btn);color:var(--btn-fg)}
.c-ghost{background:transparent;color:var(--b-fg);box-shadow:inset 0 0 0 2px color-mix(in srgb,var(--b-fg) 35%,transparent)}
.c-ghost:hover{box-shadow:inset 0 0 0 2px var(--b-fg)}

.done-msg{display:none;background:var(--seg-hot);color:#fff;font-weight:900;font-size:clamp(18px,2.4vw,32px);padding:10px 26px;border-radius:999px;text-align:center}
.board[data-state="done"] .done-msg{display:block}
.board[data-state="done"] .board-sub{display:none}

/* 전체 화면 */
.board:fullscreen{border-radius:0;justify-content:center;padding:4vh 4vw;gap:2.4vh}
.board:fullscreen .board-title{font-size:clamp(28px,5vw,72px);max-width:none}
.board:fullscreen .clock svg{max-width:none;max-height:62vh}
.board:fullscreen .meter{width:min(100%,1400px);height:10px}
.board:fullscreen .nudge{width:min(100%,1400px)}
.board:fullscreen .board-sub{font-size:clamp(16px,2vw,26px)}
.board.idle{cursor:none}
.board.idle .controls,.board.idle .nudge{opacity:0;transition:opacity .6s}
.board .controls,.board .nudge{transition:opacity .25s}

/* ---------- 설정 패널 ---------- */
.panel{display:flex;flex-direction:column;gap:12px}
.p-sec{background:#fff;border-radius:22px;padding:18px;box-shadow:inset 0 0 0 1px var(--line)}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .p-sec{background:var(--paper-2);box-shadow:none}}
:root[data-theme="dark"] .p-sec{background:var(--paper-2);box-shadow:none}
.p-sec h2{margin:0 0 4px;font-size:16px;font-weight:800}
.hint{margin:0 0 10px;font-size:13px;color:var(--muted);line-height:1.5}

.seg{display:grid;grid-template-columns:1fr 1fr;background:var(--paper-2);border-radius:14px;padding:4px;margin-bottom:14px}
.seg button{font:inherit;font-weight:800;font-size:15px;border:0;border-radius:10px;padding:9px 6px;background:transparent;color:var(--muted);cursor:pointer}
.seg button[aria-selected="true"]{background:var(--ink);color:var(--paper)}

.presets{display:grid;grid-template-columns:repeat(3,1fr);gap:6px}
.presets button{font:inherit;font-weight:800;font-size:16px;padding:11px 4px;border:0;border-radius:12px;background:var(--paper-2);color:var(--ink);cursor:pointer}
.presets button:hover{background:var(--line)}
.presets button[aria-pressed="true"]{background:var(--ink);color:var(--paper)}

.manual{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-top:12px;flex-wrap:wrap}
.manual label{display:flex;align-items:center;gap:8px;font-size:14px;font-weight:700;color:var(--muted);flex-wrap:wrap}
.mm{display:inline-flex;align-items:center;gap:4px;color:var(--ink)}
.manual input{font:inherit;font-weight:800;font-size:16px;color:var(--ink);background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:7px 8px}
.manual input[type="number"]{width:64px;text-align:right}

.p-btn{font:inherit;font-weight:800;font-size:14px;border:0;border-radius:12px;padding:10px 14px;background:var(--ink);color:var(--paper);cursor:pointer}
.adjust{display:grid;grid-template-columns:repeat(3,1fr);gap:6px}
.adjust .p-btn{background:var(--paper-2);color:var(--ink);font-size:15px}
.adjust .plus{color:#1E8E3E}
.adjust .minus{color:#D93025}
.adjust .p-btn:hover{background:var(--line)}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .adjust .plus{color:#81C995}:root:not([data-theme="light"]) .adjust .minus{color:#F28B82}}

.chk{display:flex;align-items:center;gap:10px;font-size:15px;font-weight:600;padding:5px 0;cursor:pointer}
.chk input{width:18px;height:18px;accent-color:var(--g-blue)}
.p-link{margin-top:6px;background:none;border:0;padding:4px 0;font:inherit;font-size:14px;font-weight:700;color:var(--g-blue);text-decoration:underline;text-underline-offset:3px;cursor:pointer}

.yt-row{display:flex;gap:6px}
.yt-row input{flex:1;min-width:0;font:inherit;font-size:14px;color:var(--ink);background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:9px 10px}
.yt-err{margin:6px 0 0;font-size:13px;font-weight:700;color:#D93025;min-height:0}
.yt-err:empty{display:none}
.yt-box{margin:10px 0 6px;border-radius:14px;overflow:hidden;aspect-ratio:16/9;background:#000}
.yt-box iframe,.yt-box #ytPlayer{width:100%;height:100%;display:block;border:0}
.vol{display:flex;align-items:center;gap:10px;font-size:14px;font-weight:700;color:var(--muted);margin-top:6px}
.vol input{flex:1;accent-color:var(--g-blue)}

.swatches{display:flex;gap:8px}
.swatches button{flex:1;font:inherit;font-weight:800;font-size:14px;padding:10px 6px;border-radius:12px;border:0;cursor:pointer;box-shadow:inset 0 0 0 2px transparent}
.swatches [data-skin="night"]{background:#0E1A33;color:#FBBC04}
.swatches [data-skin="board"]{background:#1E4636;color:#F4F1E6}
.swatches [data-skin="paper"]{background:#fff;color:#1B2433;box-shadow:inset 0 0 0 1px var(--line)}
.swatches button[aria-checked="true"]{box-shadow:0 0 0 3px var(--paper),0 0 0 5px var(--g-blue)}
.keys{margin:12px 0 0;font-size:13px;color:var(--muted);line-height:2}
kbd{font:inherit;font-weight:800;font-size:12px;padding:2px 7px;border-radius:6px;background:var(--paper-2);box-shadow:inset 0 -1px 0 var(--line);color:var(--ink)}

.timer-page .foot{margin-top:48px}
@media (max-width:520px){.c-btn{padding:11px 16px;font-size:15px}.c-go{min-width:110px}}

/* ===== 한 화면에 맞추기 + 설정 탭 ===== */
.timer-page .top{padding-top:10px;padding-bottom:10px}
.tapp{height:calc(100dvh - 72px);min-height:540px;padding-bottom:16px;align-items:stretch}
.board{height:100%;min-height:0;justify-content:center}
.clock-wrap{flex:1 1 auto;min-height:0;justify-content:center}
.clock{flex:1 1 auto;min-height:0;align-items:center}
.clock svg{width:auto;height:100%;max-width:100%;max-height:none}
.board:fullscreen .clock svg{max-height:none}

.panel{height:100%;min-height:0;gap:0;background:#fff;border-radius:22px;box-shadow:inset 0 0 0 1px var(--line);overflow:hidden}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .panel{background:var(--paper-2);box-shadow:none}}
:root[data-theme="dark"] .panel{background:var(--paper-2);box-shadow:none}
.ptabs{display:grid;grid-template-columns:repeat(3,1fr);gap:4px;padding:6px;border-bottom:1px solid var(--line)}
.ptabs button{position:relative;font:inherit;font-weight:800;font-size:15px;border:0;border-radius:12px;padding:10px 4px;background:transparent;color:var(--muted);cursor:pointer}
.ptabs button:hover{color:var(--ink);background:var(--paper)}
.ptabs button[aria-selected="true"]{background:var(--ink);color:var(--paper)}
.ptabs .dot{position:absolute;top:8px;right:14px;width:7px;height:7px;border-radius:50%;background:var(--g-red)}
.pane{flex:1 1 auto;min-height:0;overflow:auto;padding:14px 16px 16px}
.pane[hidden]{display:none}
.p-h{margin:16px 0 8px;font-size:15px;font-weight:800;display:flex;align-items:baseline;gap:8px}
.p-h span{font-size:12.5px;font-weight:600;color:var(--muted)}
.p-gap{margin-top:20px}
.pane > .p-h:first-child{margin-top:0}
.seg{margin-bottom:10px}
.presets button{padding:9px 4px}
.manual{margin-top:10px}

.yt-box{margin:10px 0 4px}
.yt-opts{display:flex;flex-wrap:wrap;gap:0 14px}
.yt-opts .chk{font-size:14px}
.saved{margin-top:14px;padding-top:12px;border-top:1px solid var(--line)}
.saved-head{display:flex;align-items:center;justify-content:space-between;gap:8px}
.saved-head .p-h{margin:0}
.p-save{padding:7px 12px;font-size:13px}
.login{margin-top:8px;padding:12px;border-radius:14px;background:var(--paper)}
.login p{margin:0 0 10px;font-size:13.5px;line-height:1.55;color:var(--muted)}
.login b{color:var(--ink)}
.g-btn{display:inline-flex;align-items:center;gap:10px;font:inherit;font-weight:800;font-size:14px;padding:9px 16px;border-radius:999px;border:1px solid var(--line);background:#fff;color:#1F1F1F;cursor:pointer}
.g-btn svg{width:18px;height:18px}
.g-btn:hover{box-shadow:0 1px 6px rgba(0,0,0,.12)}
.saved-list{list-style:none;margin:8px 0 0;padding:0}
.saved-list li{display:flex;align-items:center;gap:6px;border-radius:10px}
.saved-list li.is-on{background:var(--paper-2)}
.saved-list .play{flex:1;min-width:0;display:flex;align-items:center;gap:10px;font:inherit;font-size:14px;font-weight:700;text-align:left;background:none;border:0;padding:8px 6px;color:var(--ink);cursor:pointer;border-radius:10px}
.saved-list .play:hover{background:var(--paper-2)}
.saved-list .play img{width:48px;height:27px;border-radius:5px;object-fit:cover;flex:none;background:var(--line)}
.saved-list .play span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.saved-list .del{flex:none;width:30px;height:30px;border:0;border-radius:8px;background:none;color:var(--muted);font-size:18px;cursor:pointer}
.saved-list .del:hover{background:#FCE8E6;color:#D93025}
.saved-empty{font-size:13.5px;color:var(--muted);padding:8px 2px}
.who{margin:10px 0 0;font-size:13px;color:var(--muted);display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.who .p-link{margin:0;font-size:13px}
.msg{font-size:13px;font-weight:700;color:var(--g-blue);margin:6px 0 0}
.msg:empty{display:none}

@media (max-width:980px){
  .tapp{height:auto;min-height:0}
  .board{height:auto;min-height:62vh}
  .clock svg{width:100%;height:auto;max-height:42vh}
  .panel{height:auto}
  .pane{overflow:visible}
}
@media (max-height:700px) and (min-width:981px){
  .board{gap:8px;padding-top:16px;padding-bottom:16px}
  .board-title{font-size:28px}
  .nudge button{height:24px}
  .c-btn{padding:10px 20px;font-size:16px}
}
.ptabs .dot[hidden]{display:none}