body {
    font-family: Arial, sans-serif;
    background: #F4F8FB; /* soft corporate blue */
    text-align: center;
}

.container {
    margin-top: 60px;
}

/* CARD CONTAINER */
.card {
    background: white;
    padding: 30px;
    border-radius: 12px;
    display: inline-block;
    box-shadow: 0px 8px 20px rgba(0, 112, 173, 0.15);
    width: 340px;
    transition: 0.3s;
}

.card:hover {
    transform: scale(1.02);
}

h2 {
    font-size: 24px;
    margin-bottom: 10px;
}

p {
    margin: 10px 0;
}

/* BUTTONS */
button {
    padding: 10px 16px;
    margin: 0;   /* ✅ REMOVE spacing from here */
    border-radius: 6px;
    border: none;
    cursor: pointer;
    font-size: 14px;
}

/* PRIMARY ACTION */
.primary-btn {
    width: 100%;
    background: #0070AD;
    color: white;
    padding: 12px;
    border-radius: 8px;
    font-size: 16px;
}

.primary-btn:hover {
    background: #005A8D;
}

/* SECONDARY BUTTON */
.secondary-btn {
    background: #2B8CC4;
    color: white;
    padding: 10px 20px;
    border-radius: 8px;
    display: inline-block;
    width: auto;
    min-width: 180px;
}

.secondary-btn:hover {
    background: #005A8D;
}

/* SMALL BUTTONS */
.know {
    background-color: #2e7d32;
    color: white;
}

.dont {
    background: #616161;
    /* background-color: #5A6B7A;  muted instead of red */
    color: white;
}

.show-btn {
    padding: 10px 14px;
    font-size: 14px;
    border-radius: 8px;
    border: none;
    background: #2f80b9;
    color: white;
    cursor: pointer;
    white-space: nowrap;   /* ✅ prevents wrapping */
}

/* STATUS BADGE */
.status {
    display: inline-block;
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: bold;
    margin-bottom: 10px;
}

.status.mastered {
    background: #e8f5e9;
    color: #2e7d32;
}

.status.learning {
    background: #fff8e1;
    color: #f57f17;
}

.status.difficult {
    background: #fdecea;
    color: #c62828;
    border: 1px solid #ef9a9a;
}

/* PROGRESS BAR */
.progress-bar {
    background: #ddd;
    width: 100%;
    height: 10px;
    border-radius: 5px;
    margin-top: 5px;
}

.progress-fill {
    height: 10px;
    border-radius: 5px;
}

/* TITLE */
.title {
    font-size: 28px;
    margin-bottom: 5px;
}

.subtitle {
    color: #6c7a89;
    font-size: 14px;
    margin-bottom: 20px;
}

/* GRID LAYOUT */
.grid {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    justify-content: center;
    max-width: 600px;
    margin: 20px auto;
}

/* LEVEL CARDS */
.level-card {
    background: white;
    padding: 20px;
    border-radius: 12px;
    cursor: pointer;
    box-shadow: 0px 6px 18px rgba(0, 112, 173, 0.15);
    transition: 0.3s;
    text-align: center;
    width: 140px;
}

.level-card:hover {
    transform: translateY(-5px);
    background: #0070AD;
    color: white;
}

/* SET CARDS */
.set-card {
    background: #E6F2FA;
    padding: 15px;
    border-radius: 10px;
    cursor: pointer;
    box-shadow: 0px 3px 10px rgba(0, 112, 173, 0.1);
    transition: 0.3s;
    text-align: center;
    width: 140px;
}

.set-card:hover {
    background: #2B8CC4;
    color: white;
}

/* FORM */
.form-group {
    margin: 15px 0;
    text-align: left;
}

label {
    font-weight: bold;
    display: block;
    margin-bottom: 5px;
}

.dropdown {
    width: 100%;
    padding: 10px;
    border-radius: 6px;
    border: 1px solid #ccc;
}

/* TOP NAV BAR */
.top-bar {
    width: 100%;
    text-align: left;
    padding: 15px 30px;
}

/* NAV BUTTON */
.nav-btn {
    background: #0070AD;
    color: white;
    padding: 8px 16px;
    border-radius: 6px;
    text-decoration: none;
    font-size: 14px;
}

.nav-btn:hover {
    background: #005A8D;
}

.button-row {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 12px;
    margin-top: 15px;
    flex-wrap: wrap;   /* allows wrapping nicely if needed */
}

.meaning-box {
    margin-top: 20px;
    padding: 14px 18px;
    background: #f4f7fb;
    border-radius: 12px;
    text-align: center;
    font-size: 18px;
}

.meaning-box hr {
    margin: 20px 0;
    border: none;
    border-top: 1px solid #ddd;
}

.example {
    font-style: italic;
    color: #555;
}

.answer-form {
    margin-top: 35px;
    padding-top: 20px;
    border-top: 1px solid #eee;
}

.button-row a {
    text-decoration: none;
}

.meaning {
    font-size: 20px;
    font-weight: 600;
    margin-top: 10px;
    margin-bottom: 10px;
    color: #0070ad; /* Capgemini blue */
}

.example {
    font-style: italic;
    color: #555;
    margin-bottom: 20px;
}

.info-box {
    background: #f4f7fb;
    padding: 15px;
    border-radius: 10px;
    margin-top: 15px;
}

.info-box span {
    font-size: 12px;
    color: #777;
}

.info-box strong {
    display: block;
    margin-top: 4px;
    font-size: 16px;
}

.perfect-box {
    background: #eaf3fb;   /* light blue */
    border-left: 4px solid #0070ad;
}

.reflexive-box {
    background: #eaf7f0;
    border-left: 4px solid #6f42c1;
}