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

:root {
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --secondary-color: #8b5cf6;
    --success-color: #10b981;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    --bg-color: #0f172a;
    --card-bg: #1e293b;
    --text-color: #f1f5f9;
    --text-muted: #94a3b8;
    --border-color: #334155;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    color: var(--text-color);
    min-height: 100vh;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

.screen { display: none; min-height: 100vh; padding: 20px; }
.screen.active { display: block; }

.container { max-width: 600px; margin: 0 auto; }

h1 {
    text-align: center;
    margin-bottom: 30px;
    font-size: 2rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

h2 { font-size: 1.5rem; margin-bottom: 20px; color: var(--text-color); }

.card {
    background: var(--card-bg);
    border-radius: 16px;
    padding: 24px;
    margin-bottom: 20px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.3);
    border: 1px solid var(--border-color);
}

.form-group { margin-bottom: 20px; }

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-muted);
    font-size: 0.9rem;
    font-weight: 500;
}

input[type="number"],
input[type="text"] {
    width: 100%;
    padding: 12px 16px;
    font-size: 1rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    background: var(--bg-color);
    color: var(--text-color);
    transition: border-color 0.3s;
}

input[type="number"]:focus,
input[type="text"]:focus { outline: none; border-color: var(--primary-color); }

.btn {
    width: 100%;
    padding: 14px 24px;
    font-size: 1rem;
    font-weight: 600;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s;
    margin-top: 10px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    font-weight: 700;
}

.btn-primary:active { transform: scale(0.98); }
.btn-secondary { background: var(--border-color); color: var(--text-color); }
.btn-secondary:active { transform: scale(0.98); }

/* ===== MODE BUTTONS ===== */
.mode-buttons { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 8px; }

.mode-btn {
    padding: 16px 12px;
    font-size: 0.95rem;
    font-weight: 700;
    border: 3px solid var(--border-color);
    border-radius: 12px;
    background: var(--bg-color);
    color: var(--text-color);
    cursor: pointer;
    transition: all 0.3s;
    text-align: center;
}

.mode-btn small { display: block; font-size: 0.75rem; font-weight: 400; color: var(--text-muted); margin-top: 3px; }

.mode-btn:hover { border-color: var(--primary-color); background: rgba(99,102,241,0.1); }

.mode-btn.active {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-color: var(--primary-color);
    color: white;
}

.mode-btn.active small { color: rgba(255,255,255,0.8); }

/* ===== PLAYER COUNT BUTTONS ===== */
.player-count-buttons { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 8px; }

.player-count-btn {
    padding: 18px;
    font-size: 1.6rem;
    font-weight: 700;
    border: 3px solid var(--border-color);
    border-radius: 12px;
    background: var(--bg-color);
    color: var(--text-color);
    cursor: pointer;
    transition: all 0.3s;
}

.player-count-btn:hover { border-color: var(--primary-color); }

.player-count-btn.active {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-color: var(--primary-color);
    color: white;
}

/* ===== HEADER ===== */
.header {
    background: var(--card-bg);
    border-bottom: 1px solid var(--border-color);
    padding: 12px 16px;
    position: sticky;
    top: 0;
    z-index: 100;
}

/* ===== SCOREBOARD TABLE ===== */
.table-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }

#scoreTable {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
    min-width: 300px;
}

#scoreTable th {
    background: var(--bg-color);
    padding: 8px 10px;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.8rem;
    font-weight: 600;
    white-space: nowrap;
}

#scoreTable th:first-child { text-align: left; }

#scoreTable td {
    padding: 10px;
    text-align: center;
    border-top: 1px solid var(--border-color);
}

#scoreTable td:first-child { text-align: left; font-weight: 700; color: var(--text-color); }

#scoreTable td.total-cell { font-weight: 800; color: var(--primary-color); font-size: 1rem; }
#scoreTable td.positive { color: var(--success-color); }
#scoreTable td.negative { color: var(--danger-color); }
#scoreTable tr.sitting-out td { opacity: 0.5; font-style: italic; }

/* ===== ROUND INPUT ===== */
.round-number-label {
    text-align: center;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-muted);
    margin-bottom: 16px;
}

.section-title {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 10px;
}

.divider {
    border: none;
    border-top: 1px solid var(--border-color);
    margin: 16px 0;
}

/* Player selection */
.player-select-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-bottom: 16px; }
.player-select-grid.four-players { grid-template-columns: repeat(4, 1fr); }

.player-select-btn {
    padding: 14px 8px;
    font-size: 0.95rem;
    font-weight: 700;
    border: 3px solid var(--border-color);
    border-radius: 10px;
    background: var(--bg-color);
    color: var(--text-color);
    cursor: pointer;
    transition: all 0.2s;
    text-align: center;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.player-select-btn:hover { border-color: var(--primary-color); }

.player-select-btn.solo-selected {
    background: linear-gradient(135deg, rgba(99,102,241,0.3), rgba(139,92,246,0.3));
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.player-select-btn.sitting-out-btn {
    opacity: 0.4;
    cursor: default;
    pointer-events: none;
}

/* Win/loss */
.win-toggle { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-bottom: 16px; }

.win-btn {
    padding: 14px;
    font-size: 1rem;
    font-weight: 700;
    border: 3px solid var(--border-color);
    border-radius: 10px;
    background: var(--bg-color);
    color: var(--text-color);
    cursor: pointer;
    transition: all 0.2s;
}

.win-btn.selected-win { background: rgba(16,185,129,0.2); border-color: var(--success-color); color: var(--success-color); }
.win-btn.selected-lose { background: rgba(239,68,68,0.2); border-color: var(--danger-color); color: var(--danger-color); }

/* Game type grid */
.game-type-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin-bottom: 16px; }

.game-type-btn {
    padding: 12px 6px;
    font-size: 0.9rem;
    font-weight: 700;
    border: 3px solid var(--border-color);
    border-radius: 10px;
    background: var(--bg-color);
    color: var(--text-color);
    cursor: pointer;
    transition: all 0.2s;
    text-align: center;
}

.game-type-btn:hover { border-color: var(--primary-color); }

.game-type-btn.active {
    background: linear-gradient(135deg, rgba(99,102,241,0.3), rgba(139,92,246,0.3));
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.game-type-btn small { display: block; font-size: 0.72rem; color: var(--text-muted); margin-top: 2px; }
.game-type-btn.active small { color: rgba(99,102,241,0.8); }

/* Modifiers */
.modifier-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-bottom: 16px; }

.modifier-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 12px;
    background: var(--bg-color);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s;
    font-size: 0.9rem;
}

.modifier-item.active {
    background: rgba(99,102,241,0.15);
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.modifier-label { font-size: 0.85rem; }
.modifier-check { font-size: 1rem; }

/* Number input */
.inline-number-input {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 12px;
}

.inline-number-input label { font-size: 0.9rem; color: var(--text-muted); width: 120px; flex-shrink: 0; }

.inline-number-input input {
    flex: 1;
    max-width: 100px;
    padding: 10px 12px;
    text-align: center;
    font-size: 1.1rem;
    font-weight: 700;
}

/* Score preview */
.score-preview {
    background: rgba(99,102,241,0.1);
    border: 1px solid var(--primary-color);
    border-radius: 10px;
    padding: 14px;
    margin-bottom: 16px;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.score-preview .preview-row {
    display: flex;
    justify-content: space-between;
    padding: 3px 0;
}

.score-preview .preview-val { font-weight: 700; color: var(--text-color); }

.final-value-display {
    text-align: center;
    font-size: 2rem;
    font-weight: 900;
    color: var(--primary-color);
    margin: 8px 0;
}

/* ===== RESULTS ===== */
.result-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 16px;
    border-radius: 10px;
    margin-bottom: 10px;
    background: var(--bg-color);
    border: 2px solid var(--border-color);
}

.result-item:first-child {
    background: linear-gradient(135deg, rgba(99,102,241,0.2), rgba(139,92,246,0.2));
    border-color: var(--primary-color);
}

.result-item .rank { font-size: 1.5rem; margin-right: 10px; }
.result-item .player-name-result { font-size: 1.1rem; font-weight: 700; flex: 1; }
.result-item .score { font-size: 1.3rem; font-weight: 800; color: var(--primary-color); }

/* ===== MODALS ===== */
.modal {
    display: none;
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: rgba(0,0,0,0.7);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal.active { display: flex; }

.modal-content {
    background: var(--card-bg);
    border-radius: 16px;
    width: 100%;
    max-width: 440px;
    border: 1px solid var(--border-color);
    overflow: hidden;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h2 { margin: 0; }
.close-btn { background: none; border: none; color: var(--text-muted); font-size: 1.5rem; cursor: pointer; }

.modal-body { padding: 20px 24px; }

.game-code-display {
    font-size: 2.5rem;
    font-weight: 900;
    letter-spacing: 0.15em;
    text-align: center;
    color: var(--primary-color);
    padding: 20px;
    background: var(--bg-color);
    border-radius: 10px;
    margin: 12px 0;
    border: 2px dashed var(--primary-color);
}

/* ===== RESUME ===== */
.resume-card {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
    border: none;
}

.resume-card h2 { color: #0f172a; -webkit-text-fill-color: #0f172a; background: none; }
.resume-card p { color: rgba(15,23,42,0.8); margin: 0 0 15px; }

.resume-card-btn {
    background: white !important;
    color: var(--primary-dark) !important;
    width: 100%;
    font-weight: 700;
}

.actions { margin-top: 10px; margin-bottom: 30px; }