/* ================================================================
   NovaX LMS — Frontend Styles
   Dark navy (#0a1628) + Gold (#d4a843) brand theme
================================================================ */
:root {
    --nx-navy:  #0a1628;
    --nx-navy2: #0d1d35;
    --nx-gold:  #d4a843;
    --nx-gold2: #f0c96a;
    --nx-white: #ffffff;
    --nx-gray:  #6c757d;
    --nx-green: #27ae60;
    --nx-radius: 8px;
}

/* ── Buttons ──────────────────────────────────────────── */
.novax-btn {
    display: inline-block; padding: 10px 22px;
    background: var(--nx-navy); color: var(--nx-gold);
    border: 2px solid var(--nx-gold); border-radius: var(--nx-radius);
    font-weight: 700; font-size: 14px; text-decoration: none;
    cursor: pointer; transition: all .2s; letter-spacing: .5px;
}
.novax-btn:hover { background: var(--nx-gold); color: var(--nx-navy); }
.novax-btn-primary { background: var(--nx-navy); color: #fff; border-color: var(--nx-navy); }
.novax-btn-primary:hover { background: var(--nx-gold); color: var(--nx-navy); border-color: var(--nx-gold); }
.novax-btn-gold { background: var(--nx-gold); color: var(--nx-navy); border-color: var(--nx-gold); }
.novax-btn-gold:hover { background: var(--nx-gold2); border-color: var(--nx-gold2); }
.novax-btn-stripe { background: #635bff; color: #fff; border-color: #635bff; }
.novax-btn-stripe:hover { background: #4f46e5; border-color: #4f46e5; }

/* ── Course grid (shortcode) ──────────────────────────── */
.novax-courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px; margin: 24px 0;
}
.novax-course-card {
    border-radius: var(--nx-radius); overflow: hidden;
    border: 1px solid #e0e0e0; box-shadow: 0 2px 12px rgba(0,0,0,.08);
    transition: transform .2s, box-shadow .2s;
}
.novax-course-card:hover { transform: translateY(-4px); box-shadow: 0 8px 24px rgba(0,0,0,.14); }
.novax-course-card img { width: 100%; height: 160px; object-fit: cover; display: block; }
.novax-course-card-body { padding: 16px; }
.novax-course-card-body h3 { font-size: 16px; margin-bottom: 8px; }
.novax-course-card-body h3 a { color: var(--nx-navy); text-decoration: none; }
.novax-course-meta { display: flex; justify-content: space-between; align-items: center; margin-top: 12px; }
.novax-price { font-weight: 700; font-size: 18px; color: var(--nx-gold); }

/* ── Single course ────────────────────────────────────── */
.novax-course-wrap { max-width: 860px; margin: 0 auto; }

.novax-progress-bar-wrap { margin-bottom: 24px; }
.novax-progress-label { font-size: 13px; color: var(--nx-gray); margin-bottom: 6px; }
.novax-progress-track { background: #e9ecef; border-radius: 99px; height: 10px; overflow: hidden; }
.novax-progress-fill  { background: linear-gradient(90deg, var(--nx-gold), var(--nx-green)); height: 100%; border-radius: 99px; transition: width .4s; }

/* Lessons */
.novax-lessons h2 { font-size: 20px; margin-bottom: 16px; color: var(--nx-navy); }
.novax-lesson { border: 1px solid #dee2e6; border-radius: var(--nx-radius); margin-bottom: 10px; overflow: hidden; }
.novax-lesson.novax-done { border-color: var(--nx-green); }
.novax-lesson-header {
    display: flex; align-items: center; gap: 12px;
    padding: 14px 16px; cursor: pointer;
    background: #f8f9fa; transition: background .2s;
}
.novax-lesson-header:hover { background: #eef0f2; }
.novax-lesson.novax-done .novax-lesson-header { background: #f0fff4; }
.novax-lesson-check { font-size: 18px; flex-shrink: 0; }
.novax-lesson-title { flex: 1; font-weight: 600; }
.novax-lesson-toggle { transition: transform .2s; font-size: 12px; color: var(--nx-gray); }
.novax-lesson.open .novax-lesson-toggle { transform: rotate(180deg); }
.novax-lesson-body { display: none; padding: 20px 20px 16px; border-top: 1px solid #dee2e6; }
.novax-lesson.open .novax-lesson-body { display: block; }
.novax-lesson-content { line-height: 1.7; margin-bottom: 16px; }
.novax-mark-done { margin-top: 4px; }

/* Exam */
.novax-exam { margin-top: 36px; }
.novax-exam h2 { font-size: 20px; margin-bottom: 14px; color: var(--nx-navy); }
.novax-exam.novax-locked { opacity: .5; pointer-events: none; }
.novax-notice { background: #fff3cd; border: 1px solid #ffc107; border-radius: 6px; padding: 12px 16px; margin-bottom: 16px; }
.novax-exam-intro { color: var(--nx-gray); margin-bottom: 20px; }
.novax-question { background: #f8f9fa; border-radius: var(--nx-radius); padding: 18px 20px; margin-bottom: 16px; }
.novax-q-text { margin-bottom: 12px; font-size: 15px; }
.novax-option { display: flex; align-items: center; gap: 10px; padding: 8px 10px; border-radius: 6px; cursor: pointer; margin-bottom: 4px; transition: background .15s; }
.novax-option:hover { background: #e9ecef; }
.novax-option.correct { background: #d4edda; border: 1px solid var(--nx-green); }
.novax-option.wrong { background: #f8d7da; border: 1px solid #dc3545; }

#novax-exam-result { padding: 20px; border-radius: var(--nx-radius); margin-top: 16px; font-size: 16px; }
.novax-result-pass { background: #d4edda; border: 1px solid var(--nx-green); color: #155724; }
.novax-result-fail { background: #f8d7da; border: 1px solid #dc3545; color: #721c24; }

/* Enroll box */
.novax-enroll-box { background: #f8f9fa; border: 2px solid var(--nx-gold); border-radius: var(--nx-radius); padding: 32px; text-align: center; margin-top: 24px; }
.novax-price-tag { font-size: 36px; font-weight: 700; color: var(--nx-gold); margin-bottom: 16px; }
.novax-payment-options h3 { margin-bottom: 16px; }
.novax-gateway-block { margin-bottom: 16px; }
#novax-card-element { border: 1px solid #dee2e6; padding: 12px; border-radius: 6px; background: #fff; margin: 12px 0; }
#novax-stripe-error { color: #dc3545; font-size: 13px; margin-top: 6px; }

/* Certificate block */
.novax-certificate-block { background: linear-gradient(135deg, var(--nx-navy), var(--nx-navy2)); color: #fff; padding: 28px 32px; border-radius: var(--nx-radius); border: 2px solid var(--nx-gold); margin-top: 32px; text-align: center; }
.novax-certificate-block h2 { color: var(--nx-gold); margin-bottom: 10px; }

/* ── Dashboard ────────────────────────────────────────── */
.novax-dashboard { max-width: 860px; margin: 0 auto; }
.novax-dash-header { background: linear-gradient(135deg,var(--nx-navy),var(--nx-navy2)); color: var(--nx-gold); padding: 24px 28px; border-radius: var(--nx-radius); margin-bottom: 24px; }
.novax-dash-header h2 { margin: 0; font-size: 22px; }
.novax-dash-tabs { display: flex; gap: 4px; border-bottom: 2px solid #dee2e6; margin-bottom: 20px; }
.novax-tab-btn { background: none; border: none; padding: 10px 20px; font-size: 14px; font-weight: 600; cursor: pointer; color: var(--nx-gray); border-bottom: 3px solid transparent; margin-bottom: -2px; }
.novax-tab-btn.active { color: var(--nx-navy); border-bottom-color: var(--nx-gold); }
.novax-dash-course-row { display: flex; align-items: center; gap: 16px; padding: 16px; border: 1px solid #dee2e6; border-radius: var(--nx-radius); margin-bottom: 12px; }
.novax-dash-cert-row { display: flex; align-items: center; gap: 16px; padding: 16px; border: 1px solid var(--nx-gold); border-radius: var(--nx-radius); margin-bottom: 12px; background: linear-gradient(135deg,#fffdf0,#fff8e1); }

@media(max-width:600px){
    .novax-courses-grid{grid-template-columns:1fr;}
    .novax-dash-course-row,.novax-dash-cert-row{flex-direction:column;align-items:flex-start;}
}