.flashcards-pro-container {
    max-width: 540px;
    margin: 40px auto;
    font-family: 'Segoe UI', 'Arial', sans-serif;
    font-size: 22pt;
    background: #fff;
    border-radius: 18px;
    box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.15);
    padding: 36px 36px 28px 36px;
    color: #232323;
}

.flashcards-card,
.flashcards-quiz,
.flashcards-summary {
    margin-bottom: 36px;
    padding: 32px 24px;
    border-radius: 14px;
    background: linear-gradient(135deg, #f6f8fc 0%, #e3eafd 100%);
    box-shadow: 0 4px 18px rgba(31,38,135,0.05);
    font-size: 22pt;
}

.flashcards-front,
.flashcards-back {
    margin-bottom: 30px;
    font-size: 22pt;
    line-height: 1.4;
    word-break: break-word;
}

.flashcards-front img,
.flashcards-back img {
    display: block;
    margin: 18px 0 0 0;
    max-width: 100%;
    width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(50,60,90,0.08);
}

.flashcards-quiz > div:first-child {
    margin-bottom: 34px;
    font-weight: 600;
}

.flashcards-choice,
.flashcards-show-back,
.flashcards-mark-right,
.flashcards-mark-wrong,
.flashcards-repeat-quiz,
.flashcards-repeat-flashcards {
    display: inline-block;
    font-size: 22pt;
    margin: 12px 12px 0 0;
    padding: 18px 40px;
    border-radius: 12px;
    border: none;
    outline: none;
    background: linear-gradient(135deg, #3575ec 0%, #6cc0e5 100%);
    color: #fff;
    font-weight: 500;
    cursor: pointer;
    box-shadow: 0 2px 12px rgba(53,117,236,0.15);
    transition: background 0.2s, box-shadow 0.2s, transform 0.1s;
}
.flashcards-choice:last-child,
.flashcards-mark-wrong:last-child {
    margin-right: 0;
}
.flashcards-choice:hover,
.flashcards-show-back:hover,
.flashcards-mark-right:hover,
.flashcards-mark-wrong:hover,
.flashcards-repeat-quiz:hover,
.flashcards-repeat-flashcards:hover {
    background: linear-gradient(135deg, #285fbd 0%, #42a7c6 100%);
    transform: translateY(-2px) scale(1.03);
    box-shadow: 0 4px 24px rgba(53,117,236,0.18);
}

.flashcards-summary h3 {
    font-size: 1.2em;
    margin-bottom: 18px;
    font-weight: 700;
}
.flashcards-summary ul {
    font-size: 0.9em;
    margin-top: 16px;
    margin-bottom: 0;
    padding-left: 22px;
}
.flashcards-summary li {
    margin-bottom: 10px;
}

.flashcards-summary button,
.flashcards-repeat-quiz,
.flashcards-repeat-flashcards {
    margin-top: 20px;
    width: 100%;
    padding: 22px 0;
    font-size: 22pt;
    border-radius: 14px;
    background: linear-gradient(135deg, #2eb872 0%, #4cd964 100%);
    color: #fff;
    font-weight: 700;
    box-shadow: 0 4px 18px rgba(46,184,114,0.12);
    border: none;
    transition: background 0.2s, box-shadow 0.2s, transform 0.1s;
}
.flashcards-summary button:hover,
.flashcards-repeat-quiz:hover,
.flashcards-repeat-flashcards:hover {
    background: linear-gradient(135deg, #249c5d 0%, #31b05e 100%);
    box-shadow: 0 8px 28px rgba(46,184,114,0.18);
    transform: translateY(-2px) scale(1.03);
}

@media (max-width: 600px) {
    .flashcards-pro-container {
        max-width: 99vw;
        padding: 8vw 2vw 4vw 2vw;
        font-size: 6vw;
    }
    .flashcards-card,
    .flashcards-quiz,
    .flashcards-summary {
        padding: 8vw 0vw;
        font-size: 6vw;
    }
    .flashcards-choice,
    .flashcards-show-back,
    .flashcards-mark-right,
    .flashcards-mark-wrong,
    .flashcards-repeat-quiz,
    .flashcards-repeat-flashcards {
        font-size: 6vw;
        padding: 5vw 6vw;
    }
    .flashcards-summary button,
    .flashcards-repeat-quiz,
    .flashcards-repeat-flashcards {
        font-size: 6vw;
        padding: 7vw 0;
    }
}