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

body {
    font-family: "Roboto Condensed", -apple-system, BlinkMacSystemFont, sans-serif;
    background: #1a1a1a;
    color: white;
    min-height: 100vh;
    padding: 20px;
    font-weight: 400;
    letter-spacing: 0.5px;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
}

header {
    text-align: center;
    margin-bottom: 40px;
}

.logos {
    margin-bottom: 20px;
}

.logo {
    height: 60px;
}

h1 {
    display: none;
    letter-spacing: 8px;
    font-weight: 700;
}

.groups-container {
    max-height: 600px;
    overflow-y: auto;
    padding-right: 10px;
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.groups-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.group {
    background: rgba(255, 255, 255, 0.05);
    padding: 20px;
    border-radius: 10px;
}

.group h2 {
    font-size: 1.8rem;
    margin-bottom: 15px;
    text-align: center;
    letter-spacing: 3px;
    font-weight: 700;
}

.team-slot {
    margin-bottom: 10px;
}

.team-select {
    width: 100%;
    padding: 12px;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    background: white;
    color: #333;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.2s ease;
    letter-spacing: 0.3px;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    min-height: 44px;
}

.team-select:focus {
    outline: 2px solid rgba(255, 255, 255, 0.5);
    outline-offset: 2px;
}

.team-select:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
}

.team-select:disabled {
    background: #f0f0f0;
    cursor: not-allowed;
}

.team-select option {
    padding: 10px;
}

.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.7);
}

.modal-content {
    background-color: white;
    color: #333;
    margin: 5% auto;
    padding: 30px;
    border-radius: 15px;
    width: 90%;
    max-width: 1200px;
    max-height: 85vh;
    overflow-y: auto;
    box-shadow: 0 4px 20px rgba(0,0,0,0.3);
}

.close {
    color: #aaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
}

.close:hover {
    color: #000;
}

#validationMessage {
    font-size: 1.1rem;
    line-height: 1.6;
    margin-bottom: 20px;
}

#bracketVisualization {
    margin-top: 20px;
    padding: 20px;
    background: #2d2d2d;
    border-radius: 10px;
    display: none;
    overflow-x: auto;
}

.bracket-quadrants {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    grid-template-rows: 1fr auto 1fr;
    gap: 20px;
    min-width: 1100px;
    position: relative;
}

.quadrant {
    padding: 15px;
    border-radius: 10px;
    min-height: 200px;
}

.quadrant-top-left {
    grid-column: 1;
    grid-row: 1;
    background: rgba(33, 150, 243, 0.15);
    border: 2px solid #2196F3;
}

.quadrant-bottom-left {
    grid-column: 1;
    grid-row: 3;
    background: rgba(0, 188, 212, 0.15);
    border: 2px solid #00BCD4;
}

.quadrant-top-right {
    grid-column: 3;
    grid-row: 1;
    background: rgba(76, 175, 80, 0.15);
    border: 2px solid #4CAF50;
}

.quadrant-bottom-right {
    grid-column: 3;
    grid-row: 3;
    background: rgba(244, 67, 54, 0.15);
    border: 2px solid #F44336;
}

.center-column {
    grid-column: 2;
    grid-row: 1 / 4;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 20px;
    padding: 0 30px;
}

.quadrant-title {
    font-size: 0.75rem;
    font-weight: 600;
    color: #fff;
    margin-bottom: 10px;
    text-align: center;
}

.r32-matches {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.r16-r32-container {
    display: flex;
    gap: 15px;
    align-items: center;
}

.r32-column {
    display: flex;
    flex-direction: column;
    gap: 8px;
    flex: 1;
}

.r16-column {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.bracket-match-quad {
    background: rgba(255, 255, 255, 0.9);
    padding: 8px 10px;
    border-radius: 8px;
    font-size: 0.7rem;
    border: 2px solid rgba(255, 255, 255, 0.3);
    position: relative;
}

.quadrant-top-left .bracket-match-quad {
    border-color: #2196F3;
}

.quadrant-bottom-left .bracket-match-quad {
    border-color: #00BCD4;
}

.quadrant-top-right .bracket-match-quad {
    border-color: #4CAF50;
}

.quadrant-bottom-right .bracket-match-quad {
    border-color: #F44336;
}

.bracket-match-quad.has-top4 {
    background: #fff3cd;
    border-width: 3px;
    box-shadow: 0 2px 8px rgba(255, 193, 7, 0.4);
}

.bracket-match-quad.conflict {
    background: #ffebee;
    border-color: #f44336;
    border-width: 3px;
}

.match-id {
    font-weight: 700;
    color: #333;
    font-size: 0.75rem;
}

.match-teams {
    color: #666;
    font-size: 0.65rem;
    margin-top: 2px;
}

.match-top4-name {
    color: #f57c00;
    font-weight: 700;
    font-size: 0.7rem;
    margin-top: 3px;
}

.center-qf {
    background: rgba(255, 255, 255, 0.1);
    padding: 15px;
    border-radius: 10px;
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.center-qf h4 {
    color: #fff;
    font-size: 0.8rem;
    margin-bottom: 10px;
    text-align: center;
}

.qf-match {
    background: rgba(255, 255, 255, 0.9);
    padding: 10px;
    border-radius: 8px;
    margin-bottom: 10px;
    border: 2px solid #9e9e9e;
}

.qf-match.has-top4 {
    background: #fff3cd;
    border-color: #ffc107;
    border-width: 3px;
}

.semi-final-section {
    background: rgba(255, 193, 7, 0.2);
    padding: 15px;
    border-radius: 10px;
    border: 2px solid #ffc107;
}

.semi-final-section h4 {
    color: #fff;
    font-size: 0.85rem;
    margin-bottom: 10px;
    text-align: center;
}

.semi-match {
    background: #fff9c4;
    padding: 12px;
    border-radius: 8px;
    margin-bottom: 10px;
    border: 3px solid #ffc107;
}

.final-section {
    background: linear-gradient(135deg, rgba(255, 215, 0, 0.3), rgba(255, 193, 7, 0.3));
    padding: 20px;
    border-radius: 10px;
    border: 3px solid #ffd700;
}

.final-section h4 {
    color: #ffd700;
    font-size: 0.9rem;
    margin-bottom: 10px;
    text-align: center;
    font-weight: 700;
}

.final-match {
    background: linear-gradient(135deg, #ffd700, #ffed4e);
    padding: 15px;
    border-radius: 8px;
    border: 3px solid #ffd700;
    text-align: center;
}

.bracket-match-label {
    font-weight: 600;
    color: #495057;
    margin-bottom: 3px;
}

.bracket-match-team {
    color: #1971c2;
    font-weight: 600;
    margin: 2px 0;
}

.bracket-match-detail {
    color: #868e96;
    font-size: 0.7rem;
}

.bracket-final-match {
    background: linear-gradient(135deg, #ffd700 0%, #ffed4e 100%);
    border-color: #ffd700;
    font-weight: 600;
}

.bracket-semi-match {
    background: #fff9e6;
    border-color: #ffc107;
}

.bracket-legend {
    margin-top: 15px;
    padding: 10px;
    background: white;
    border-radius: 8px;
    font-size: 0.8rem;
    text-align: center;
}

.bracket-legend span {
    margin: 0 10px;
}

.legend-optimal { color: #51cf66; font-weight: 600; }
.legend-conflict { color: #ff6b6b; font-weight: 600; }

@media (max-width: 1024px) {
    .groups-row {
        grid-template-columns: repeat(2, 1fr);
    }
    
    h1 {
        font-size: 3rem;
    }
}

@media (max-width: 768px) {
    body {
        padding: 10px;
    }
    
    .groups-row {
        grid-template-columns: 1fr;
    }
    
    h1 {
        font-size: 2.5rem;
        letter-spacing: 4px;
        margin-bottom: 30px;
    }
    
    .logo {
        height: 40px;
    }
    
    .group {
        padding: 15px;
    }
    
    .group h2 {
        font-size: 1.5rem;
        margin-bottom: 12px;
    }
    
    .team-select {
        padding: 14px;
        font-size: 1.1rem;
    }
    
    .modal-content {
        width: 90%;
        padding: 25px;
        margin: 20% auto;
    }
    
    #validationMessage {
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 2rem;
        letter-spacing: 2px;
    }
    
    .group {
        padding: 12px;
    }
    
    .group h2 {
        font-size: 1.3rem;
    }
    
    .team-select {
        padding: 12px;
        font-size: 1rem;
    }
}