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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: #0a5a3a;
    color: #f5f5f5;
    min-height: 100vh;
    padding: 12px;
}

/* === Screen management === */
.screen { width: 100%; }
.screen.hidden { display: none !important; }

/* Generic utility class to hide any element */
.hidden { display: none !important; }

/* Floating KLOPFEN button (appears during knocking window) */
.knock-btn {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 200;
    background: #d32f2f;
    color: white;
    border: 3px solid #ffeb3b;
    padding: 16px 28px;
    border-radius: 50px;
    font-size: 1.2rem;
    font-weight: 900;
    cursor: pointer;
    box-shadow: 0 4px 16px rgba(0,0,0,0.5);
    animation: pulse 1.2s infinite;
    display: none;
}
.knock-btn:hover { background: #b71c1c; transform: scale(1.05); }

/* Always-visible tournament scoreboard */
.scoreboard {
    position: fixed;
    top: 12px;
    right: 12px;
    z-index: 50;
    background: rgba(0,0,0,0.7);
    color: #ffeb3b;
    border: 1px solid #ffeb3b;
    border-radius: 8px;
    padding: 8px 12px;
    font-size: 0.85rem;
    min-width: 180px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.5);
}
.sb-title {
    font-weight: bold;
    margin-bottom: 4px;
    border-bottom: 1px solid rgba(255,235,59,0.3);
    padding-bottom: 4px;
}
.sb-row {
    display: flex;
    justify-content: space-between;
    padding: 2px 0;
    color: white;
}
.sb-name { color: #f5f5f5; }
.sb-pts { color: #ffeb3b; font-weight: 600; }
.sb-eur {
    display: inline-block;
    margin-left: 6px;
    color: #81d4fa;
    font-size: 0.78rem;
    font-weight: 700;
}
.sb-total {
    border-top: 1px solid rgba(255,235,59,0.3);
    margin-top: 4px;
    padding-top: 4px;
    font-weight: bold;
}

@keyframes pulse {
    0%, 100% { box-shadow: 0 4px 16px rgba(255,235,59,0.4); }
    50%      { box-shadow: 0 4px 32px rgba(255,235,59,0.9); }
}

/* Tournament cumulative score badge on opponent cards */
.opponent-block .cumulative-score {
    background: rgba(255,235,59,0.15);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.8rem;
    margin-left: 6px;
}

/* === Menu / Lobby cards === */
.menu-card {
    max-width: 480px;
    margin: 40px auto;
    background: rgba(0,0,0,0.3);
    border-radius: 12px;
    padding: 32px;
    text-align: center;
    box-shadow: 0 8px 32px rgba(0,0,0,0.4);
}

.menu-card.wide { max-width: 640px; }

.menu-card h1 {
    font-size: 2.4rem;
    margin-bottom: 8px;
}

.menu-card h2 { font-size: 1.5rem; margin-bottom: 16px; }
.menu-card h3 { font-size: 1.1rem; margin: 16px 0 8px; text-align: left; }

.menu-card p { margin: 12px 0; opacity: 0.9; }
.menu-card .menu-sub { margin-bottom: 24px; opacity: 0.7; }

.big-btn {
    display: block;
    width: 100%;
    padding: 14px 20px;
    margin: 10px 0;
    background: #455a64;
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.15s, transform 0.1s;
}
.big-btn:hover { background: #37474f; transform: translateY(-1px); }
.big-btn.primary { background: #1976d2; }
.big-btn.primary:hover { background: #1565c0; }

.big-select, .big-input {
    display: block;
    width: 100%;
    padding: 12px 14px;
    margin: 8px 0 16px;
    font-size: 1.05rem;
    border-radius: 6px;
    border: 1px solid #555;
    background: #1a1a1a;
    color: white;
    box-sizing: border-box;
}

.big-input[readonly] {
    background: #2a2a2a;
    cursor: text;
}

.link-btn {
    background: transparent;
    color: #81d4fa;
    border: none;
    padding: 8px 12px;
    margin-top: 12px;
    font-size: 0.95rem;
    cursor: pointer;
    text-decoration: underline;
}
.link-btn:hover { color: #b3e5fc; }

/* === Lobby specifics === */
.lobby-share {
    display: flex;
    gap: 20px;
    margin: 20px 0;
    flex-wrap: wrap;
}

.lobby-code-block {
    flex: 0 0 auto;
    text-align: center;
    background: rgba(255,255,255,0.05);
    padding: 16px 24px;
    border-radius: 8px;
    border: 2px solid #ffeb3b;
}

.lobby-link-block { flex: 1 1 280px; text-align: left; }

.lobby-label {
    font-size: 0.85rem;
    opacity: 0.7;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 6px;
}

.lobby-code {
    font-family: 'Courier New', monospace;
    font-size: 2.2rem;
    font-weight: 900;
    color: #ffeb3b;
    letter-spacing: 0.15em;
}

.player-list {
    list-style: none;
    padding: 0;
    margin: 8px 0;
    text-align: left;
}

.player-list li {
    padding: 8px 12px;
    margin: 4px 0;
    background: rgba(255,255,255,0.06);
    border-radius: 4px;
    font-size: 1rem;
}

.lobby-hint {
    font-style: italic;
    opacity: 0.7;
    margin: 16px 0;
}

.game {
    display: grid;
    grid-template-columns: 1fr 280px;
    grid-template-rows: auto auto 1fr auto;
    grid-template-areas:
        "header   log"
        "opponent log"
        "table    log"
        "player   log";
    gap: 12px;
    max-width: 1400px;
    margin: 0 auto;
}

header {
    grid-area: header;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
    padding: 8px 16px;
    background: rgba(0,0,0,0.25);
    border-radius: 8px;
}

header h1 { font-size: 1.6rem; }

.setup {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
}

.setup select {
    background: #1a1a1a;
    color: white;
    border: 1px solid #555;
    border-radius: 4px;
    padding: 4px 8px;
    font-size: 0.9rem;
}

.status {
    font-weight: 600;
    color: #ffeb3b;
    min-height: 1.2em;
}

.opponents { grid-area: opponent; }
.table     { grid-area: table; }
.player    { grid-area: player; }
.log       { grid-area: log; }

.opponents, .player, .table {
    background: rgba(0,0,0,0.15);
    border-radius: 8px;
    padding: 12px;
}

.opponents {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.opponent-block {
    flex: 1 1 200px;
    min-width: 180px;
    background: rgba(255,255,255,0.05);
    border-radius: 6px;
    padding: 8px;
    border: 2px solid transparent;
    transition: border-color 0.2s;
}

.opponent-block.active {
    border-color: #ffeb3b;
    background: rgba(255,235,59,0.08);
}

.opponent-block .hand {
    min-height: 60px;
}

.opponent-block .card-back {
    width: 28px;
    height: 42px;
    margin-right: -16px;
}

.player-label, .melds-label, .pile-label, .log-label {
    font-size: 0.85rem;
    opacity: 0.85;
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.hand {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    min-height: 110px;
}

.table {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 16px;
    align-items: start;
}

.melds-area {
    display: flex;
    flex-direction: column;
    gap: 12px;
    min-height: 200px;
}

.melds-block {
    background: rgba(255,255,255,0.05);
    border-radius: 6px;
    padding: 8px;
    min-height: 95px;
}

.melds {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.meld {
    display: flex;
    gap: 2px;
    background: rgba(255,255,255,0.08);
    padding: 4px;
    border-radius: 4px;
}

.piles {
    display: flex;
    gap: 12px;
}

.pile {
    display: flex;
    flex-direction: column;
    align-items: center;
}

/* Card styles */
.card {
    width: 62px;
    height: 92px;
    background: white;
    color: #222;
    border-radius: 6px;
    border: 1px solid #444;
    position: relative;
    font-weight: bold;
    font-size: 1rem;
    cursor: pointer;
    user-select: none;
    transition: transform 0.1s, box-shadow 0.1s;
    box-shadow: 0 2px 4px rgba(0,0,0,0.3);
    overflow: hidden;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.4);
}

.card.selected {
    transform: translateY(-12px);
    box-shadow: 0 6px 12px rgba(255,235,59,0.6);
    border-color: #ffeb3b;
    border-width: 2px;
}

.card.dragging  { opacity: 0.35; }
.card.drop-before { box-shadow: -4px 0 0 0 #ffeb3b, 0 2px 4px rgba(0,0,0,0.3); }
.card.drop-after  { box-shadow:  4px 0 0 0 #ffeb3b, 0 2px 4px rgba(0,0,0,0.3); }

.hand { min-height: 110px; }

.card.red    { color: #c62828; }
.card.black  { color: #1a1a1a; }

.card.joker {
    background: linear-gradient(135deg, #fff8e1 0%, #ffe082 50%, #ffca28 100%);
    color: #4a148c;
    padding: 2px 4px;
    overflow: hidden;
    position: relative;
}

.card.swappable-joker {
    box-shadow: 0 0 8px rgba(255,235,59,0.7), 0 2px 4px rgba(0,0,0,0.3);
}
.card.swappable-joker:hover {
    transform: translateY(-4px) scale(1.05);
    box-shadow: 0 0 16px rgba(255,235,59,1), 0 4px 8px rgba(0,0,0,0.4);
}

.card.joker .corner {
    display: flex;
    align-items: center;
    gap: 1px;
    font-size: 0.7rem;
    line-height: 1;
    color: #4a148c;
    font-weight: 900;
    z-index: 2;
}

.card.joker .corner .suit { font-size: 0.8rem; color: #c62828; }
.card.joker .corner.bottom { transform: rotate(180deg); align-self: flex-end; }

.card.joker .joker-face {
    position: absolute;
    inset: 8px 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: none;
}

.card.joker .joker-face svg {
    width: 100%;
    height: 100%;
    max-height: 76px;
}

.card .corner {
    position: absolute;
    display: flex;
    flex-direction: column;
    align-items: center;
    line-height: 1;
    width: 14px;
}

.card .corner.top    { top: 3px;    left: 4px; }
.card .corner.bottom { bottom: 3px; right: 4px; transform: rotate(180deg); }

.card .rank  { font-size: 0.85rem; }
.card .suit  { font-size: 0.95rem; margin-top: 1px; }

.card .center {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    font-size: 1.6rem;
    line-height: 1;
}

.card .center.face-rank {
    font-family: Georgia, "Times New Roman", serif;
    font-size: 1.7rem;
    font-weight: bold;
}

.card-back, .discard-slot {
    width: 62px;
    height: 92px;
    border-radius: 6px;
    cursor: pointer;
}

.card-back {
    background:
        radial-gradient(circle at center, #ffd54f 0 3.5px, transparent 4px),
        radial-gradient(circle at 50% 50%, transparent 14px, rgba(255,213,79,0.5) 14.5px, transparent 16px),
        radial-gradient(circle at 50% 50%, transparent 18px, rgba(255,213,79,0.35) 18.5px, transparent 20px),
        repeating-linear-gradient(45deg,  transparent 0 5px, rgba(255,213,79,0.18) 5px 6px),
        repeating-linear-gradient(-45deg, transparent 0 5px, rgba(255,213,79,0.18) 5px 6px),
        linear-gradient(135deg, #8e0000 0%, #b71c1c 50%, #6a0000 100%);
    border: 2px solid #ffd54f;
    box-shadow: inset 0 0 0 1px #4a0000, 0 2px 4px rgba(0,0,0,0.4);
}

.opponent-block .card-back {
    background:
        radial-gradient(circle at center, #ffd54f 0 1.5px, transparent 2px),
        repeating-linear-gradient(45deg,  transparent 0 3px, rgba(255,213,79,0.2) 3px 4px),
        repeating-linear-gradient(-45deg, transparent 0 3px, rgba(255,213,79,0.2) 3px 4px),
        linear-gradient(135deg, #8e0000 0%, #b71c1c 50%, #6a0000 100%);
    border: 1px solid #ffd54f;
}

.card-back:hover {
    transform: translateY(-4px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.4);
}

.discard-slot {
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255,255,255,0.4);
    font-size: 0.8rem;
}

.discard-slot .card { cursor: pointer; }

.controls {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 12px;
}

button {
    background: #1976d2;
    color: white;
    border: none;
    padding: 8px 14px;
    border-radius: 4px;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.15s;
}

button:hover:not(:disabled) { background: #1565c0; }
button:disabled {
    background: #555;
    cursor: not-allowed;
    opacity: 0.6;
}

#btn-new { background: #388e3c; }
#btn-new:hover { background: #2e7d32; }

.log {
    background: rgba(0,0,0,0.3);
    border-radius: 8px;
    padding: 12px;
    overflow-y: auto;
    max-height: calc(100vh - 40px);
}

#log {
    list-style: none;
    font-size: 0.85rem;
}

#log li {
    padding: 4px 0;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

#log li.you  { color: #81d4fa; }
#log li.ai   { color: #ffab91; }
#log li.info { color: #c5e1a5; font-style: italic; }

.modal {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
}

.modal.hidden { display: none; }

.modal-content {
    background: #1a1a1a;
    padding: 24px 32px;
    border-radius: 8px;
    text-align: center;
    max-width: 400px;
}

.modal-content h2 { margin-bottom: 12px; }
.modal-content p  {
    margin-bottom: 16px;
    line-height: 1.5;
    white-space: pre-line;
    text-align: left;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", monospace;
}

@media (max-width: 900px) {
    .game {
        grid-template-columns: 1fr;
        grid-template-areas:
            "header"
            "opponent"
            "table"
            "player"
            "log";
    }
    .log { max-height: 200px; }
}