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

body {
    font-family: Arial, Helvetica, sans-serif;
    min-height: 100vh;
    background:
        linear-gradient(rgba(4, 25, 18, 0.82), rgba(4, 25, 18, 0.95)),
        radial-gradient(circle at center, #198754, #061d15);
    color: white;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.game-container {
    width: 100%;
    max-width: 480px;
}

.start-screen {
    text-align: center;
    padding: 45px 28px;
    background: rgba(8, 40, 29, 0.9);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 24px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
}

.football {
    display: block;
    font-size: 64px;
    margin-bottom: 12px;
}

.brand h1 {
    font-size: 46px;
    letter-spacing: 4px;
    margin-bottom: 5px;
}

.tagline {
    color: #9ef0bd;
    font-size: 18px;
    font-weight: bold;
    letter-spacing: 1px;
}

.intro {
    margin: 40px 0 30px;
}

.intro h2 {
    font-size: 25px;
    margin-bottom: 12px;
}

.intro p {
    color: #d5e8df;
    line-height: 1.6;
    font-size: 15px;
}

.kickoff-btn {
    width: 100%;
    padding: 17px;
    border: none;
    border-radius: 12px;
    background: #f4c430;
    color: #102018;
    font-size: 18px;
    font-weight: 800;
    letter-spacing: 1px;
    cursor: pointer;
    transition: 0.2s ease;
}

.kickoff-btn:hover {
    transform: translateY(-2px);
    background: #ffd84d;
}

.kickoff-btn:active {
    transform: translateY(0);
}

.best-score {
    margin-top: 22px;
    color: #b9cfc4;
    font-size: 14px;
}

.best-score strong {
    color: white;
}

.best-rank {
    margin-top: 6px;
    color: #ffffff;
}

.best-rank strong {
    color: #f4c430;
}

/* FOOTMIND GAME SCREEN */

.game-screen {
    display: none;
    padding: 32px 28px;
    background: rgba(8, 40, 29, 0.9);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 24px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
}

.match-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
    font-size: 15px;
    font-weight: bold;
}

#matchStage {
    color: #9ef0bd;
    letter-spacing: 1px;
}

.challenge-number {
    color: #b9cfc4;
    font-size: 14px;
    margin-bottom: 25px;
}

.challenge-card {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 18px;
    padding: 28px 24px;
}

.challenge-type {
    display: inline-block;
    color: #f4c430;
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 1.2px;
    margin-bottom: 16px;
}

.challenge-card h2 {
    font-size: 24px;
    line-height: 1.35;
    margin-bottom: 24px;
}

.answer-options {
    display: grid;
    gap: 12px;
}

.answer-btn {
    width: 100%;
    padding: 15px 18px;
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.08);
    color: #f4c430;
    font-size: 15px;
    font-weight: 700;
    text-align: left;
    cursor: pointer;
    transition: 0.2s ease;
}

.answer-btn:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: #9ef0bd;
    transform: translateY(-1px);
}

.answer-btn.correct {
    background: #198754;
    border-color: #9ef0bd;
    color: white;
}

.answer-btn.wrong {
    background: #8b2e2e;
    border-color: #e57373;
    color: white;
}

.answer-btn:disabled {
    cursor: default;
}

.next-btn {
    display: none;
    width: 100%;
    margin-top: 20px;
    padding: 15px;
    border: none;
    border-radius: 10px;
    background: #f4c430;
    color: #102018;
    font-size: 14px;
    font-weight: 800;
    letter-spacing: 0.8px;
    cursor: pointer;
    transition: 0.2s ease;
}

.next-btn:hover {
    background: #ffd84d;
    transform: translateY(-1px);
}

/* FOOTMIND HALF TIME SCREEN */

.halftime-screen,
.fulltime-screen {
    display: none;
    text-align: center;
    padding: 45px 28px;
    background: rgba(8, 40, 29, 0.9);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 24px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
}

.halftime-icon {
    font-size: 60px;
    margin-bottom: 15px;
}

.halftime-label {
    color: #f4c430;
    font-size: 16px;
    font-weight: 800;
    letter-spacing: 3px;
    margin-bottom: 18px;
}

.halftime-screen h2 {
    font-size: 30px;
    margin-bottom: 15px;
}

.halftime-message {
    color: #d5e8df;
    font-size: 15px;
    line-height: 1.6;
    margin-bottom: 30px;
}

.halftime-score {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 16px;
    padding: 25px;
    margin-bottom: 30px;
}

.halftime-score > span {
    display: block;
    color: #9ef0bd;
    font-size: 13px;
    font-weight: bold;
    letter-spacing: 1px;
    margin-bottom: 12px;
}

.halftime-score strong {
    display: block;
    font-size: 38px;
    color: #f4c430;
}

.fulltime-screen {
    display: none;
}

.match-reward {
    margin: 20px 0;
    padding: 18px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(244, 196, 48, 0.35);
    border-radius: 14px;
    text-align: center;
}

.reward-icon {
    font-size: 34px;
    margin-bottom: 8px;
}

.match-reward strong {
    display: block;
    color: #f4c430;
    font-size: 20px;
    margin-bottom: 6px;
}

.match-reward p {
    margin: 0;
    font-size: 14px;
    opacity: 0.85;
}

.ad-slot {
    margin: 18px 0;
    padding: 16px;
    min-height: 70px;
    border: 1px dashed rgba(255, 255, 255, 0.25);
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.03);
    text-align: center;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.ad-label {
    font-size: 10px;
    letter-spacing: 1.5px;
    color: rgba(255, 255, 255, 0.5);
    margin-bottom: 6px;
}

.ad-slot p {
    margin: 0;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.65);
}

@media (max-width: 700px) {
    body {
    padding: 10px;
    }
    .start-screen {
        width: 100%;
        max-width: 100%;
        padding: 32px 18px;
    }

    .brand h1 {
        font-size: 32px;
    }

    .football {
        font-size: 50px;
    }

    .intro {
    margin: 32px 0 24px;
}

.intro h2 {
    font-size: 22px;
}

.intro p {
    font-size: 14px;
    line-height: 1.5;
}

}