/* estil.css — Concurs de Robots 2025-2026 */
@import url('https://fonts.googleapis.com/css2?family=Bebas+Neue&family=IBM+Plex+Mono:ital,wght@0,400;0,600;1,400&display=swap');

:root {
    --bg:         #0d0f14;
    --card-bg:    #13161e;
    --fg:         #e2e8f0;
    --muted:      #64748b;
    --accent:     #f59e0b;     /* ambre */
    --accent-dim: #78450a;
    --green:      #4ade80;
    --red:        #f87171;
    --blue:       #60a5fa;
    --sumo-col:   #f59e0b;
    --vel-col:    #60a5fa;
    --bye-col:    #475569;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 16px; }

body {
    background: var(--bg);
    color: var(--fg);
    font-family: 'IBM Plex Mono', monospace;
    min-height: 100vh;
}

/* ── Capçalera ─────────────────────────────────────── */
header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.5rem;
    border-bottom: 2px solid var(--accent-dim);
    background: var(--card-bg);
    position: sticky;
    top: 0;
    z-index: 100;
}

header h1 {
    font-family: 'Bebas Neue', sans-serif;
    font-size: clamp(1.2rem, 4vw, 1.8rem);
    letter-spacing: 0.08em;
    color: var(--accent);
}

.header-right {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 0.75rem;
    color: var(--muted);
}

.btn-logout {
    background: transparent;
    border: 1px solid var(--accent-dim);
    color: var(--accent);
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.75rem;
    padding: 0.4rem 0.8rem;
    cursor: pointer;
    text-decoration: none;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    transition: background 0.15s;
}
.btn-logout:hover { background: var(--accent-dim); }

/* ── Pestanyes modalitat ───────────────────────────── */
.tabs {
    display: flex;
    border-bottom: 2px solid var(--accent-dim);
    background: var(--card-bg);
}
.tab {
    flex: 1;
    padding: 0.9rem;
    text-align: center;
    cursor: pointer;
    font-family: 'Bebas Neue', sans-serif;
    font-size: 1.2rem;
    letter-spacing: 0.12em;
    color: var(--muted);
    border-bottom: 3px solid transparent;
    margin-bottom: -2px;
    transition: color 0.15s, border-color 0.15s;
    user-select: none;
}
.tab.sumo.actiu   { color: var(--sumo-col); border-color: var(--sumo-col); }
.tab.velocitat.actiu { color: var(--vel-col); border-color: var(--vel-col); }
.tab:not(.actiu):hover { color: var(--fg); }

/* ── Quadre eliminatori ───────────────────────────── */
.quadre-scroll {
    overflow-x: auto;
    padding: 1.5rem;
}

.quadre {
    display: flex;
    gap: 0;
    align-items: flex-start;
    min-width: max-content;
}

.ronda-col {
    display: flex;
    flex-direction: column;
    min-width: 190px;
}

.ronda-titol {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 0.85rem;
    letter-spacing: 0.18em;
    color: var(--muted);
    text-transform: uppercase;
    padding: 0.4rem 0.6rem;
    text-align: center;
    border-bottom: 1px solid var(--accent-dim);
    margin-bottom: 0.5rem;
}

.ronda-partides {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    flex: 1;
    justify-content: space-around;
}

/* ── Targeta de partida ───────────────────────────── */
.partida {
    background: var(--card-bg);
    border: 1px solid var(--accent-dim);
    padding: 0.5rem 0.7rem;
    position: relative;
    cursor: default;
    transition: border-color 0.15s;
}
.partida.activa  { border-color: var(--accent); box-shadow: 0 0 8px rgba(245,158,11,0.3); }
.partida.acabada { border-color: #1e293b; opacity: 0.85; }
.partida.bye     { border-color: var(--bye-col); opacity: 0.6; }

.equip-linia {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.25rem 0;
    font-size: 0.78rem;
    border-bottom: 1px solid #1e293b;
    gap: 0.4rem;
}
.equip-linia:last-child { border-bottom: none; }

.equip-codi {
    font-weight: 600;
    min-width: 32px;
    color: var(--accent);
}
.equip-codi.daw  { color: var(--vel-col); }
.equip-codi.asix { color: var(--sumo-col); }

.equip-nom {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    color: var(--fg);
    font-size: 0.72rem;
}

.equip-vic {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 1.1rem;
    min-width: 18px;
    text-align: right;
    color: var(--muted);
}
.equip-vic.guanyador { color: var(--green); }

.partida-estat {
    font-size: 0.62rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--muted);
    margin-top: 0.3rem;
}
.partida-estat.activa   { color: var(--accent); }
.partida-estat.acabada  { color: var(--green); }

/* ── Connector entre rondes ───────────────────────── */
.connector {
    width: 24px;
    display: flex;
    align-items: stretch;
    flex-direction: column;
    justify-content: space-around;
    padding-top: 1.6rem; /* compensa títol */
}
.connector-linia {
    flex: 1;
    border-right: 1px solid var(--accent-dim);
    margin: 2px 0;
}

/* ── Zona professor: botons ───────────────────────── */
.btn-vic {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-dim);
    border: none;
    color: var(--fg);
    font-family: 'IBM Plex Mono', monospace;
    font-size: 1rem;
    width: 36px;
    height: 36px;
    cursor: pointer;
    transition: background 0.15s, transform 0.1s;
    border-radius: 2px;
}
.btn-vic:hover   { background: var(--accent); color: var(--bg); }
.btn-vic:active  { transform: scale(0.95); }

.btn-activar {
    width: 100%;
    background: transparent;
    border: 1px solid var(--accent);
    color: var(--accent);
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.72rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    padding: 0.35rem;
    cursor: pointer;
    margin-top: 0.4rem;
    transition: background 0.15s;
}
.btn-activar:hover { background: var(--accent); color: var(--bg); }

/* ── Avís de col·lisió ───────────────────────────── */
.avis-collisio {
    background: rgba(248,113,113,0.12);
    border: 1px solid var(--red);
    color: var(--red);
    padding: 0.8rem 1rem;
    margin: 1rem 1.5rem;
    font-size: 0.8rem;
    display: none;
}
.avis-collisio.visible { display: block; }

/* ── Llegenda ─────────────────────────────────────── */
.llegenda {
    display: flex;
    gap: 1.2rem;
    padding: 0.8rem 1.5rem;
    font-size: 0.72rem;
    color: var(--muted);
    border-top: 1px solid var(--accent-dim);
    flex-wrap: wrap;
}
.llegenda span { display: flex; align-items: center; gap: 0.4rem; }
.dot { width: 8px; height: 8px; border-radius: 50%; display: inline-block; }

/* ── Vista alumne: info actives ──────────────────── */
.actives-banner {
    background: var(--card-bg);
    border-bottom: 2px solid var(--accent-dim);
    padding: 0.8rem 1.5rem;
    font-size: 0.8rem;
}
.actives-banner strong { color: var(--accent); }

/* ── Rellotge ─────────────────────────────────────── */
.rellotge {
    font-size: 0.75rem;
    color: var(--muted);
    font-variant-numeric: tabular-nums;
}

/* ── Campió ──────────────────────────────────────── */
.campió-box {
    text-align: center;
    padding: 1.5rem;
}
.campió-box .trofeu { font-size: 3rem; }
.campió-box .nom { font-family: 'Bebas Neue', sans-serif; font-size: 2rem; color: var(--accent); }

/* ── Responsive ──────────────────────────────────── */
@media (max-width: 600px) {
    .ronda-col { min-width: 155px; }
    .equip-nom { font-size: 0.65rem; }
    header h1  { font-size: 1.1rem; }
}