:root {
  --bg: #eef3f8;
  --bg-accent: #dbe7f3;
  --card: #ffffff;
  --text: #13213a;
  --muted: #64748b;
  --border: #e2e8f0;
  --court: #1f5fbf;
  --court-dark: #163f80;
  --ball: #d7f02f;
  --ball-dark: #a8bd12;
  --win: #16a34a;
  --win-bg: #dcfce7;
  --loss: #dc2626;
  --loss-bg: #fee2e2;
  --team-a: #1f5fbf;
  --team-b: #ea580c;
  --gold: #f5b301;
  --silver: #94a3b8;
  --bronze: #c26a2c;
  --shadow: 0 1px 2px rgba(15, 23, 42, .06), 0 8px 24px rgba(15, 23, 42, .06);
  --radius: 16px;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b1220;
    --bg-accent: #101b30;
    --card: #131e33;
    --text: #e6edf7;
    --muted: #8da0bb;
    --border: #22314d;
    --court: #4b8df0;
    --court-dark: #2f6fd1;
    --win-bg: #12351f;
    --loss-bg: #3a1717;
    --team-a: #5b9cff;
    --team-b: #ff8a3d;
    --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 8px 24px rgba(0, 0, 0, .25);
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  background:
    radial-gradient(1200px 400px at 10% -10%, var(--bg-accent), transparent),
    var(--bg);
  color: var(--text);
  min-height: 100vh;
}

h1, h2, h3 { margin: 0; letter-spacing: -.01em; }
h2 { font-size: 1.15rem; }
h3 { font-size: 1rem; margin-bottom: .4rem; }
hr { border: none; border-top: 1px solid var(--border); margin: 1.2rem 0; }

/* Barre du haut ------------------------------------------------------------ */
.topbar {
  background: linear-gradient(135deg, var(--court-dark), var(--court));
  color: #fff;
  padding: 1.2rem clamp(1rem, 4vw, 2.5rem) 0;
  position: relative;
  overflow: hidden;
}
.topbar::after { /* lignes de terrain */
  content: "";
  position: absolute; inset: 0;
  background:
    linear-gradient(90deg, transparent calc(50% - 1px), rgba(255,255,255,.12) calc(50% - 1px), rgba(255,255,255,.12) calc(50% + 1px), transparent calc(50% + 1px)),
    linear-gradient(0deg, transparent 30%, rgba(255,255,255,.08) 30%, rgba(255,255,255,.08) calc(30% + 2px), transparent calc(30% + 2px));
  pointer-events: none;
}
.brand { display: flex; align-items: center; gap: .9rem; position: relative; z-index: 1; }
.brand h1 { font-size: 1.6rem; font-weight: 800; }
.tagline { margin: .1rem 0 0; opacity: .8; font-size: .9rem; }
.ball {
  width: 42px; height: 42px; border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, #f3ff9a, var(--ball) 45%, var(--ball-dark));
  box-shadow: 0 4px 14px rgba(0,0,0,.25);
  position: relative; flex-shrink: 0;
}
.ball::before, .ball::after {
  content: ""; position: absolute; width: 100%; height: 100%; border-radius: 50%;
  border: 2px solid rgba(255,255,255,.85); border-color: rgba(255,255,255,.85) transparent;
}
.ball::before { left: -55%; transform: rotate(45deg); }
.ball::after { left: 55%; transform: rotate(45deg); }
.ball { overflow: hidden; }

.tabs {
  display: flex; gap: .25rem; margin-top: 1.2rem; position: relative; z-index: 1;
  overflow-x: auto; scrollbar-width: none;
}
.tab {
  border: none; background: transparent; color: rgba(255,255,255,.8);
  padding: .75rem 1.1rem; font: inherit; font-weight: 600; cursor: pointer;
  border-radius: 12px 12px 0 0; white-space: nowrap; transition: background .15s, color .15s;
}
.tab:hover { color: #fff; background: rgba(255,255,255,.1); }
.tab.active { background: var(--bg); color: var(--text); }

/* Mise en page -------------------------------------------------------------- */
main { padding: 1.5rem clamp(1rem, 4vw, 2.5rem) 3rem; max-width: 1200px; margin: 0 auto; }
.panel { display: none; animation: fade .2s ease; }
.panel.active { display: block; }
@keyframes fade { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: none; } }

.grid-2 { display: grid; grid-template-columns: minmax(0, 1fr) 340px; gap: 1.25rem; align-items: start; }
.grid-2.reverse { grid-template-columns: minmax(0, 1fr) 380px; }
.grid-2.left { grid-template-columns: 360px minmax(0, 1fr); }
@media (max-width: 900px) {
  .grid-2, .grid-2.reverse, .grid-2.left { grid-template-columns: minmax(0, 1fr); }
  .grid-2 .side { order: -1; }
}

.card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 1.25rem;
}
.card > h2 { margin-bottom: 1rem; }
.card-head { display: flex; justify-content: space-between; align-items: center; gap: 1rem; margin-bottom: 1rem; flex-wrap: wrap; }
.muted { color: var(--muted); font-size: .9rem; }
.hint { color: var(--muted); font-size: .9rem; line-height: 1.5; margin: .75rem 0 0; }
.empty { color: var(--muted); text-align: center; padding: 2rem 1rem; margin: 0; }
.stack { display: flex; flex-direction: column; gap: .7rem; }
.row { display: flex; gap: .5rem; }
.row > * { flex: 1; }

/* Formulaires --------------------------------------------------------------- */
input, select {
  font: inherit; color: var(--text); background: var(--bg);
  border: 1px solid var(--border); border-radius: 10px; padding: .65rem .8rem; width: 100%;
  transition: border-color .15s, box-shadow .15s;
}
input:focus, select:focus { outline: none; border-color: var(--court); box-shadow: 0 0 0 3px color-mix(in srgb, var(--court) 25%, transparent); }
.field { display: flex; flex-direction: column; gap: .3rem; font-size: .85rem; color: var(--muted); font-weight: 600; }

.btn {
  font: inherit; font-weight: 700; border: none; border-radius: 10px; padding: .7rem 1rem; cursor: pointer;
  transition: transform .05s, filter .15s, background .15s;
}
.btn:active { transform: translateY(1px); }
.btn.primary { background: var(--ball); color: #1a2a00; box-shadow: 0 2px 0 var(--ball-dark); }
.btn.primary:hover { filter: brightness(1.05); }
.btn.ghost { background: transparent; color: var(--text); border: 1px solid var(--border); }
.btn.ghost:hover { background: var(--bg); }
.btn.small { padding: .35rem .6rem; font-size: .8rem; }

.icon-btn {
  border: none; background: transparent; color: var(--muted); cursor: pointer; border-radius: 8px;
  padding: .3rem .5rem; font: inherit; font-size: .8rem; white-space: nowrap;
}
.icon-btn:hover { background: var(--loss-bg); color: var(--loss); }
.icon-btn.confirm { background: var(--loss); color: #fff; }

/* Classement ---------------------------------------------------------------- */
.podium { display: grid; grid-template-columns: repeat(3, 1fr); gap: .75rem; margin-bottom: 1.25rem; align-items: end; }
.podium:empty { display: none; }
.podium-step {
  text-align: center; border-radius: 14px; padding: .9rem .5rem; background: var(--bg);
  border: 1px solid var(--border); position: relative;
}
.podium-step .medal { font-size: 1.8rem; line-height: 1; }
.podium-step .name { font-weight: 700; margin-top: .35rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.podium-step .elo { font-size: 1.4rem; font-weight: 800; font-variant-numeric: tabular-nums; }
.podium-step.p1 { order: 2; padding-top: 1.6rem; border-color: var(--gold); background: color-mix(in srgb, var(--gold) 12%, var(--card)); }
.podium-step.p2 { order: 1; border-color: var(--silver); }
.podium-step.p3 { order: 3; border-color: var(--bronze); }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th { text-align: left; font-size: .75rem; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); padding: .5rem; border-bottom: 1px solid var(--border); }
td { padding: .65rem .5rem; border-bottom: 1px solid var(--border); }
tr:last-child td { border-bottom: none; }
tbody tr:hover { background: var(--bg); }
.num { text-align: right; font-variant-numeric: tabular-nums; }
.rank { font-weight: 800; color: var(--muted); width: 2rem; }
.player-cell { font-weight: 600; }
.elo-cell { font-weight: 800; font-size: 1.05rem; }
.streak { font-size: .85rem; white-space: nowrap; }
.form-dots { display: inline-flex; gap: 3px; }
.dot { width: 9px; height: 9px; border-radius: 50%; display: inline-block; }
.dot.w { background: var(--win); }
.dot.l { background: var(--loss); }

/* Matchs -------------------------------------------------------------------- */
.teams-input { display: grid; grid-template-columns: 1fr auto 1fr; gap: .5rem; align-items: center; }
.team { border: 2px solid var(--border); border-radius: 12px; padding: .5rem .6rem .6rem; margin: 0; display: flex; flex-direction: column; gap: .4rem; min-width: 0; }
.team legend { font-weight: 800; font-size: .8rem; padding: 0 .3rem; }
.team-a { border-color: color-mix(in srgb, var(--team-a) 45%, transparent); }
.team-a legend { color: var(--team-a); }
.team-b { border-color: color-mix(in srgb, var(--team-b) 45%, transparent); }
.team-b legend { color: var(--team-b); }
.vs { font-weight: 900; color: var(--muted); font-size: .85rem; }
@media (max-width: 420px) {
  .teams-input { grid-template-columns: 1fr; }
  .vs { text-align: center; }
}

.sets { display: flex; flex-direction: column; gap: .4rem; }
.sets-head, .set-row { display: grid; grid-template-columns: 60px 1fr 1fr; gap: .5rem; align-items: center; }
.sets-head span { text-align: center; font-weight: 800; font-size: .8rem; }
.sets-head .a { color: var(--team-a); }
.sets-head .b { color: var(--team-b); }
.set-row label { font-size: .85rem; color: var(--muted); font-weight: 600; }
.set-row input { text-align: center; font-weight: 700; font-variant-numeric: tabular-nums; }

.preview { background: var(--bg); border-radius: 12px; padding: .75rem; font-size: .9rem; }
.prob-bar { display: flex; height: 10px; border-radius: 99px; overflow: hidden; margin: .4rem 0 .3rem; }
.prob-bar .a { background: var(--team-a); }
.prob-bar .b { background: var(--team-b); }
.prob-labels { display: flex; justify-content: space-between; font-size: .8rem; font-weight: 700; }
.prob-labels .a { color: var(--team-a); }
.prob-labels .b { color: var(--team-b); }

.match-list { display: flex; flex-direction: column; gap: .75rem; }
.match {
  border: 1px solid var(--border); border-radius: 14px; padding: .8rem 1rem;
  display: grid; grid-template-columns: 1fr auto 1fr; gap: .75rem; align-items: center; position: relative;
}
.match-meta { grid-column: 1 / -1; display: flex; justify-content: space-between; align-items: center; font-size: .8rem; color: var(--muted); }
.match-side { display: flex; flex-direction: column; gap: .3rem; min-width: 0; }
.match-side.b { align-items: flex-end; text-align: right; }
.match-player { display: flex; gap: .4rem; align-items: baseline; min-width: 0; }
.match-side.b .match-player { flex-direction: row-reverse; }
.match-player .n { font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.match-side.winner .n { font-weight: 800; }
.match-side.winner .n::after { content: " 🏆"; font-size: .8em; }
.match-side.b.winner .n::after { content: ""; }
.match-side.b.winner .n::before { content: "🏆 "; font-size: .8em; }
.delta { font-size: .78rem; font-weight: 700; padding: .05rem .35rem; border-radius: 6px; font-variant-numeric: tabular-nums; flex-shrink: 0; }
.delta.up { color: var(--win); background: var(--win-bg); }
.delta.down { color: var(--loss); background: var(--loss-bg); }
.score { display: flex; gap: .3rem; }
.score .set { display: flex; flex-direction: column; align-items: center; background: var(--bg); border-radius: 8px; padding: .25rem .45rem; font-weight: 800; font-variant-numeric: tabular-nums; line-height: 1.25; }
.score .set .w { color: var(--text); }
.score .set .l { color: var(--muted); font-weight: 500; }

/* Graphique ----------------------------------------------------------------- */
.chart-box { position: relative; height: min(60vh, 520px); }
.chip-row { display: flex; flex-wrap: wrap; gap: .4rem; }
.chip {
  border: 1px solid var(--border); background: var(--card); color: var(--text); border-radius: 99px;
  padding: .3rem .7rem; font: inherit; font-size: .85rem; font-weight: 600; cursor: pointer;
  display: inline-flex; align-items: center; gap: .4rem; transition: opacity .15s;
}
.chip .swatch { width: 10px; height: 10px; border-radius: 50%; }
.chip.off { opacity: .4; }

/* Équipes ------------------------------------------------------------------- */
.teams-result { display: flex; flex-direction: column; gap: .9rem; }
.option { border: 1px solid var(--border); border-radius: 14px; padding: 1rem; }
.option.best { border: 2px solid var(--ball-dark); background: color-mix(in srgb, var(--ball) 10%, var(--card)); }
.option-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: .6rem; gap: .5rem; flex-wrap: wrap; }
.badge { font-size: .75rem; font-weight: 800; padding: .2rem .55rem; border-radius: 99px; background: var(--ball); color: #1a2a00; }
.badge.alt { background: var(--bg); color: var(--muted); }
.option-teams { display: grid; grid-template-columns: 1fr auto 1fr; gap: .75rem; align-items: center; }
.option-team { display: flex; flex-direction: column; gap: .15rem; }
.option-team.b { text-align: right; }
.option-team .names { font-weight: 700; }
.option-team.a .names { color: var(--team-a); }
.option-team.b .names { color: var(--team-b); }
.option-team .avg { font-size: .8rem; color: var(--muted); }
.option .btn { margin-top: .7rem; width: 100%; }

/* Toast --------------------------------------------------------------------- */
.toast {
  position: fixed; left: 50%; bottom: 1.5rem; transform: translate(-50%, calc(100% + 2rem));
  background: var(--text); color: var(--card); padding: .75rem 1.1rem; border-radius: 12px;
  font-weight: 600; box-shadow: var(--shadow); transition: transform .25s ease, opacity .25s; z-index: 10;
  max-width: calc(100vw - 2rem); opacity: 0; pointer-events: none;
}
.toast.show { transform: translate(-50%, 0); opacity: 1; }
.toast.error { background: var(--loss); color: #fff; }