/* 교사용 슬라이드 (16:9) */
#slideview { position: fixed; inset: 0; z-index: 100; background: #0b0e13; display: flex; flex-direction: column; }
.sv-stage-wrap { flex: 1; display: flex; align-items: center; justify-content: center; overflow: hidden; position: relative; }
.sv-stage { width: 1280px; height: 720px; flex: none; transform-origin: center center; background: var(--pane); color: var(--fg); border-radius: 6px; position: relative; overflow: hidden; box-shadow: 0 10px 50px rgba(0,0,0,.5); }
.sv-bar { display: flex; align-items: center; gap: 8px; padding: 6px 12px; background: #11161d; color: #c9d1dc; font-size: 14px; }
.sv-bar button { background: transparent; border: 1px solid #2c3542; color: #c9d1dc; border-radius: 6px; padding: 3px 10px; }
.sv-bar button:hover { border-color: var(--accent); }
#svTimer { font-family: var(--mono); cursor: pointer; }
.sv-notes { position: absolute; right: 12px; bottom: 52px; width: 420px; max-height: 45vh; overflow: auto; background: rgba(17,22,29,.96); color: #dfe6ee; border: 1px solid #2c3542; border-radius: 10px; padding: 12px 16px; font-size: 15px; z-index: 3; }
.sv-blank { position: absolute; inset: 0; background: #000; z-index: 4; }

.slide { position: absolute; inset: 0; padding: 56px 72px 48px; display: flex; flex-direction: column; }
.slide::after { content: ''; position: absolute; left: 0; right: 0; bottom: 0; height: 8px; background: linear-gradient(90deg, var(--accent), var(--accent2)); }
.slide h2 { margin: 0 0 26px; font-size: 42px; line-height: 1.25; color: var(--fg); }
.slide h2::before { content: ''; display: inline-block; width: 10px; height: 34px; background: var(--accent); border-radius: 3px; margin-right: 14px; vertical-align: -4px; }
.slide .body { flex: 1; font-size: 27px; line-height: 1.6; min-height: 0; overflow: hidden; }
.slide ul { margin: 0; padding-left: 34px; } .slide li { margin: 8px 0; }
.slide li li { font-size: .85em; color: var(--muted); }
.slide code { font-family: var(--mono); background: var(--code-bg); border-radius: 5px; padding: 0 6px; font-size: .9em; }
.slide pre { margin: 0; background: var(--code-bg); border: 1px solid var(--line); border-radius: 10px; padding: 18px 22px; font-size: 22px; line-height: 1.5; overflow: hidden; }
.slide pre code { background: none; padding: 0; }
.slide .foot { position: absolute; left: 72px; bottom: 18px; font-size: 14px; color: var(--muted); }
.slide .pg { position: absolute; right: 30px; bottom: 18px; font-size: 14px; color: var(--muted); font-family: var(--mono); }

.slide.l-title { justify-content: center; background: linear-gradient(135deg, var(--accent), color-mix(in srgb, var(--accent) 50%, var(--accent2))); color: #fff; }
.slide.l-title::after { display: none; }
.slide.l-title .badge2 { display: inline-block; align-self: flex-start; background: rgba(255,255,255,.18); border-radius: 999px; padding: 4px 18px; font-size: 22px; margin-bottom: 18px; }
.slide.l-title h1 { font-size: 64px; line-height: 1.2; margin: 0 0 18px; }
.slide.l-title .sub { font-size: 30px; opacity: .9; }
.slide.l-title .foot, .slide.l-title .pg { color: rgba(255,255,255,.75); }

.slide .cols { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; height: 100%; }
.slide .col h3 { margin: 0 0 12px; font-size: 28px; color: var(--accent); }
.slide .col svg, .slide .col img { max-width: 100%; max-height: 460px; }
.slide.l-code .cols { grid-template-columns: 1.3fr 1fr; }
.slide .run-row { margin-top: 12px; display: flex; gap: 10px; }
.slide .out { font-size: 18px; max-height: 220px; margin-top: 10px; border-radius: 8px; }
.slide.l-quote .body { display: flex; align-items: center; justify-content: center; text-align: center; font-size: 40px; font-weight: 700; }
.slide.l-section { justify-content: center; }
.slide.l-section h2 { font-size: 56px; }