/* Import Google Font */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;600;700&display=swap');

body {
    background-color: #f8f9fa; /* Světlé pozadí pro čistý vzhled */
    font-family: 'Poppins', sans-serif;
}

.navbar-brand img {
    height: 24px;
}

/* Hlavní modrá karta */
.dashboard-header-card {
    background-color: #63a4ff;
    background-image: linear-gradient(315deg, #63a4ff 0%, #83eaf1 74%);
}

/* Zelený progress bar */
.progress-bar {
    background-color: #58cc02;
}

/* Styly pro karty lekcí */
.lesson-card {
    border-radius: 1rem;
    border: 1px solid #e9ecef;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    transition: transform 0.2s, box-shadow 0.2s;
}

.lesson-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 12px rgba(0,0,0,0.1);
}

.lesson-card .lesson-icon-wrapper {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #f0f0f0;
    color: #6c757d;
    border-radius: 12px;
    cursor: pointer;
}

/* Dokončená lekce */
.lesson-card.completed .lesson-icon-wrapper {
    background-color: rgba(88, 204, 2, 0.1);
    color: #58cc02;
}

/* Hlavní kvízová karta */
.quiz-card {
    background-color: #e8f9e9;
    border-radius: 1rem;
    border: 1px solid #d4edda;
}

.quiz-card .quiz-icon-wrapper {
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #fff;
    color: #58cc02;
    border-radius: 50%;
    box-shadow: 0 0 15px rgba(88, 204, 2, 0.2);
}

.btn-success {
    background-color: #58cc02;
    border-color: #58cc02;
    padding: 12px 24px;
    font-weight: 600;
}

.btn-success:hover {
    background-color: #4aa702;
    border-color: #4aa702;
}

#quiz-container input.form-control {
    border-width: 2px;
}

#quiz-container input.form-control:focus {
    border-color: #63a4ff;
    box-shadow: none;
}

/* Styly pro přihlašovací/registrační stránku */
.login-page {
    background-color: #f0f4f8; /* Jemné pozadí, odlišné od dashboardu */
    display: flex;
    align-items: center;
    min-height: 100vh;
    padding-top: 2rem;
    padding-bottom: 2rem;
}

.login-page .nav-pills .nav-link {
    color: #6c757d;
    font-weight: 600;
    padding: 0.75rem 1rem;
    border-radius: 0.5rem;
    transition: background-color 0.2s, color 0.2s;
}

.login-page .nav-pills .nav-link.active {
    background-color: #58cc02; /* Použijeme naši hlavní zelenou barvu */
    color: #fff;
    box-shadow: 0 4px 10px rgba(88, 204, 2, 0.3);
}

.login-page .form-control-lg {
    padding: 0.9rem 1rem;
    font-size: 1rem;
}

/* Styly pro zpětnou vazbu v kvízu */
.feedback-correct {
    color: #198754; /* Bootstrap success green */
    font-size: 1.2rem;
}

.feedback-incorrect {
    color: #dc3545; /* Bootstrap danger red */
    font-size: 1.2rem;
}

.feedback-incorrect span {
    color: #333; /* Barva pro správnou odpověď */
    font-weight: bold;
}

.lesson-card.locked {
    opacity: 0.6;
    cursor: not-allowed;
    background-color: #f8f9fa;
    cursor: default;
}

.lesson-card.locked:hover {
    transform: none;
    box-shadow: none;
}

/* Kurzor pro klikatelné lekce */
.lesson-card:not(.locked) {
    cursor: pointer;
}