.zo-game-root.zo-game-root--sudoku { max-width: 1120px; margin: 0 auto; padding: 20px; box-sizing: border-box; font-family: "Trebuchet MS", "Segoe UI", sans-serif; color: #1d2a3a; }
.zo-game-root--sudoku .zo-sudoku { padding: 22px; border-radius: 28px; background: radial-gradient(circle at top left, rgba(255, 255, 255, 0.9), transparent 24%), linear-gradient(180deg, #eef7ff 0%, #d8ebff 100%); border: 1px solid #bfd7ef; box-shadow: 0 18px 40px rgba(36, 76, 120, 0.15); }
.zo-game-root--sudoku .zo-sudoku__hero { display: flex; flex-wrap: wrap; align-items: flex-start; justify-content: space-between; gap: 18px; margin-bottom: 18px; }
.zo-game-root--sudoku .zo-sudoku__eyebrow { margin: 0 0 6px; font-size: 12px; font-weight: 800; letter-spacing: 0.1em; text-transform: uppercase; color: #ab5a16; }
.zo-game-root--sudoku .zo-sudoku__title { margin: 0 0 8px; font-size: clamp(34px, 5vw, 48px); line-height: 0.95; }
.zo-game-root--sudoku .zo-sudoku__intro { max-width: 680px; margin: 0; font-size: 15px; line-height: 1.6; color: #45617d; }
.zo-game-root--sudoku .zo-sudoku__stats { display: grid; grid-template-columns: repeat(4, minmax(110px, 1fr)); gap: 12px; min-width: min(100%, 360px); }
.zo-game-root--sudoku .zo-sudoku__stat, .zo-game-root--sudoku .zo-sudoku__card, .zo-game-root--sudoku .zo-sudoku__board-panel { background: rgba(255, 255, 255, 0.82); border: 1px solid rgba(110, 148, 188, 0.22); border-radius: 20px; }
.zo-game-root--sudoku .zo-sudoku__stat { padding: 14px 16px; text-align: center; }
.zo-game-root--sudoku .zo-sudoku__stat-label { display: block; margin-bottom: 4px; font-size: 11px; font-weight: 800; letter-spacing: 0.08em; text-transform: uppercase; color: #64819d; }
.zo-game-root--sudoku .zo-sudoku__stat-value { font-size: 26px; line-height: 1; }
.zo-game-root--sudoku .zo-sudoku__toolbar { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 14px; margin-bottom: 18px; }
.zo-game-root--sudoku .zo-sudoku__difficulty-label { display: inline-flex; align-items: center; gap: 10px; font-weight: 700; color: #34516f; }
.zo-game-root--sudoku .zo-sudoku__difficulty { min-height: 42px; padding: 0 14px; border: 1px solid #b9cee3; border-radius: 999px; background: #fff; color: #1d2a3a; font: inherit; }
.zo-game-root--sudoku .zo-sudoku__actions { display: flex; flex-wrap: wrap; gap: 10px; }
.zo-game-root--sudoku .zo-sudoku__button, .zo-game-root--sudoku .zo-sudoku__key { border: 0; border-radius: 999px; background: #e4eef9; color: #1d2a3a; cursor: pointer; font: inherit; font-weight: 800; transition: transform 0.12s ease, background 0.12s ease, box-shadow 0.12s ease; }
.zo-game-root--sudoku .zo-sudoku__button { min-height: 44px; padding: 0 18px; }
.zo-game-root--sudoku .zo-sudoku__button:hover, .zo-game-root--sudoku .zo-sudoku__button:focus-visible, .zo-game-root--sudoku .zo-sudoku__key:hover, .zo-game-root--sudoku .zo-sudoku__key:focus-visible { transform: translateY(-1px); outline: none; box-shadow: 0 10px 20px rgba(49, 88, 130, 0.12); }
.zo-game-root--sudoku .zo-sudoku__button--primary { background: linear-gradient(180deg, #1f73c9 0%, #1459a0 100%); color: #fff; }
.zo-game-root--sudoku .zo-sudoku__button.is-active { background: linear-gradient(180deg, #1f7a5a 0%, #14543f 100%); color: #fff; }
.zo-game-root--sudoku .zo-sudoku__layout { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(280px, 0.8fr); gap: 18px; }
.zo-game-root--sudoku .zo-sudoku__board-panel { padding: 18px; }
.zo-game-root--sudoku .zo-sudoku__board { display: grid; grid-template-columns: repeat(9, minmax(0, 1fr)); width: min(100%, 620px); margin: 0 auto; border: 4px solid #284766; border-radius: 18px; overflow: hidden; background: #284766; }
.zo-game-root--sudoku .zo-sudoku__cell { position: relative; display: grid; place-items: center; aspect-ratio: 1 / 1; min-width: 0; border: 1px solid #acc7dc; background: #fbfdff; color: #203246; font-size: clamp(20px, 2.7vw, 30px); font-weight: 800; cursor: pointer; }
.zo-game-root--sudoku .zo-sudoku__cell.is-given { background: linear-gradient(180deg, #d8ecff 0%, #c7e2fa 100%); color: #113b63; cursor: default; }
.zo-game-root--sudoku .zo-sudoku__cell.is-noted { align-items: stretch; justify-content: stretch; padding: 4px; }
.zo-game-root--sudoku .zo-sudoku__cell.is-selected { background: #fff3c4; }
.zo-game-root--sudoku .zo-sudoku__cell.is-related { background: #edf6ff; }
.zo-game-root--sudoku .zo-sudoku__cell.is-given.is-related { background: linear-gradient(180deg, #d3e8fb 0%, #bdddf8 100%); }
.zo-game-root--sudoku .zo-sudoku__cell.is-conflict { background: #ffe0e0; color: #9a1f1f; }
.zo-game-root--sudoku .zo-sudoku__cell[data-col="2"], .zo-game-root--sudoku .zo-sudoku__cell[data-col="5"] { border-right: 3px solid #284766; }
.zo-game-root--sudoku .zo-sudoku__cell[data-row="2"], .zo-game-root--sudoku .zo-sudoku__cell[data-row="5"] { border-bottom: 3px solid #284766; }
.zo-game-root--sudoku .zo-sudoku__cell[data-col="2"][data-row="2"], .zo-game-root--sudoku .zo-sudoku__cell[data-col="5"][data-row="2"], .zo-game-root--sudoku .zo-sudoku__cell[data-col="2"][data-row="5"], .zo-game-root--sudoku .zo-sudoku__cell[data-col="5"][data-row="5"] { border-right: 3px solid #284766; border-bottom: 3px solid #284766; }
.zo-game-root--sudoku .zo-sudoku__notes { display: grid; grid-template-columns: repeat(3, 1fr); width: 100%; height: 100%; gap: 2px; align-items: center; justify-items: center; font-size: clamp(9px, 1.5vw, 12px); font-weight: 700; line-height: 1; color: #4e6882; }
.zo-game-root--sudoku .zo-sudoku__note { display: flex; align-items: center; justify-content: center; width: 100%; height: 100%; }
.zo-game-root--sudoku .zo-sudoku__keypad { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 10px; max-width: 600px; margin: 16px auto 0; }
.zo-game-root--sudoku .zo-sudoku__key { min-height: 48px; font-size: 18px; }
.zo-game-root--sudoku .zo-sudoku__key--wide { grid-column: span 2; }
.zo-game-root--sudoku .zo-sudoku__side { display: grid; gap: 14px; }
.zo-game-root--sudoku .zo-sudoku__card { padding: 18px; }
.zo-game-root--sudoku .zo-sudoku__card-title { margin: 0 0 10px; font-size: 18px; }
.zo-game-root--sudoku .zo-sudoku__rules { margin: 0; padding-left: 18px; color: #45617d; line-height: 1.6; }
.zo-game-root--sudoku .zo-sudoku__card-copy, .zo-game-root--sudoku .zo-sudoku__status { margin: 0; font-size: 15px; line-height: 1.6; color: #45617d; }
.zo-game-root--sudoku .zo-sudoku__status { padding: 16px 18px; border-radius: 18px; background: rgba(255, 255, 255, 0.82); border: 1px solid rgba(110, 148, 188, 0.22); font-weight: 700; }
.zo-game-root--sudoku .zo-sudoku__status.is-success { color: #166534; background: #ecfdf3; border-color: #9fd2b0; }
.zo-game-root--sudoku .zo-sudoku__status.is-warning { color: #9a3412; background: #fff7ed; border-color: #f2c59d; }
@media (max-width: 900px) { .zo-game-root--sudoku .zo-sudoku__layout { grid-template-columns: 1fr; } }
@media (max-width: 640px) { .zo-game-root.zo-game-root--sudoku { padding: 12px; } .zo-game-root--sudoku .zo-sudoku { padding: 14px; border-radius: 22px; } .zo-game-root--sudoku .zo-sudoku__stats { grid-template-columns: 1fr 1fr 1fr; min-width: 100%; } .zo-game-root--sudoku .zo-sudoku__board-panel { padding: 12px; } .zo-game-root--sudoku .zo-sudoku__keypad { gap: 8px; } }