/* Course Layout & Player Styles */

/* Course Overview Page */
.course-hero {
    padding: 6rem 0 3rem;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: white;
}

.course-hero-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 3rem;
    align-items: center;
}

.course-badge-level {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.2);
    padding: 0.4rem 1rem;
    border-radius: 999px;
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.course-meta-info {
    display: flex;
    gap: 2rem;
    margin-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.2);
    padding-top: 1.5rem;
}

.c-meta-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.course-preview-card {
    background: white;
    padding: 2rem;
    border-radius: var(--radius-md);
    color: var(--gray-800);
    box-shadow: var(--shadow-lg);
    text-align: center;
}

.course-preview-video {
    width: 100%;
    aspect-ratio: 16/9;
    background: var(--gray-200);
    border-radius: var(--radius-sm);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.course-preview-video img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.play-button-overlay {
    position: absolute;
    width: 60px;
    height: 60px;
    background: var(--accent);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    cursor: pointer;
    transition: transform 0.2s;
}

.play-button-overlay:hover {
    transform: scale(1.1);
}

.syllabus-container {
    background: white;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    margin-top: 2rem;
}

.module-header {
    padding: 1.5rem;
    background: var(--light);
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    font-weight: 600;
}

.module-content {
    padding: 0;
    display: none;
}

.module-content.active {
    display: block;
}

.lesson-item {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background 0.2s;
}

.lesson-item:hover {
    background: var(--light);
}

.lesson-info {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.lesson-status {
    color: var(--gray-400);
}
.lesson-status.completed {
    color: var(--secondary);
}


/* Player Interface */
.player-layout {
    display: flex;
    height: 100vh;
    overflow: hidden;
    background: var(--light);
}

.player-sidebar {
    width: 350px;
    background: white;
    border-right: 1px solid var(--gray-200);
    display: flex;
    flex-direction: column;
    z-index: 10;
}

.player-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
}

.player-header {
    height: 60px;
    background: var(--primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 1.5rem;
}

.video-container {
    background: #000;
    width: 100%;
    aspect-ratio: 16/9;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.video-placeholder {
    color: white;
    text-align: center;
}

.video-placeholder .material-icons {
    font-size: 5rem;
    color: var(--accent);
}

.content-area {
    padding: 2rem 10%;
    max-width: 1000px;
    margin: 0 auto;
    width: 100%;
}

.player-tabs {
    display: flex;
    gap: 2rem;
    border-bottom: 1px solid var(--gray-200);
    margin-top: 2rem;
    margin-bottom: 2rem;
}

.player-tab {
    padding: 1rem 0;
    font-weight: 600;
    color: var(--gray-600);
    cursor: pointer;
    position: relative;
}

.player-tab.active {
    color: var(--primary);
}

.player-tab.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--primary);
    border-radius: 3px 3px 0 0;
}

/* Quiz Styles */
.quiz-container {
    background: white;
    padding: 2.5rem;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    display: none;
}
.quiz-container.active { display: block; }

.question-block {
    margin-bottom: 2rem;
}

.question-title {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.option-label {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-sm);
    margin-bottom: 0.75rem;
    cursor: pointer;
    transition: all 0.2s;
}

.option-label:hover {
    border-color: var(--primary-light);
    background: var(--blue-light);
}

.option-label.selected {
    border-color: var(--primary);
    background: var(--blue-light);
}

input[type="radio"] {
    width: 1.2rem;
    height: 1.2rem;
    accent-color: var(--primary);
}




.gamification-popup {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%) translateY(-100px);
    background: white;
    padding: 1rem 2rem;
    border-radius: 999px;
    display: flex;
    align-items: center;
    gap: 1rem;
    box-shadow: var(--shadow-lg);
    border: 2px solid var(--accent);
    z-index: 1000;
    opacity: 0;
    transition: all 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.gamification-popup.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

/* Certificate Layout */
.certificate-container {
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 20px;
    padding: 4.5rem 4.5rem;
    box-shadow: 0 30px 70px rgba(15, 23, 42, 0.08);
    max-width: 850px;
    width: 1000px;
    margin: 2.5rem auto;
    text-align: center;
    position: relative;
    font-family: 'Poppins', sans-serif;
    box-sizing: border-box;
    overflow: hidden;
    background-image: 
        radial-gradient(at 0% 0%, rgba(14, 91, 167, 0.03) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(243, 146, 32, 0.03) 0px, transparent 50%),
        radial-gradient(circle at 50% 50%, #fafafa, #ffffff);
}
.certificate-container::before {
    content: '';
    position: absolute;
    top: 20px;
    left: 20px;
    right: 20px;
    bottom: 20px;
    border: 1.5px solid #d4af37;
    pointer-events: none;
    opacity: 0.85;
}
.certificate-container::after {
    content: '';
    position: absolute;
    top: 26px;
    left: 26px;
    right: 26px;
    bottom: 26px;
    border: 0.5px solid #d4af37;
    pointer-events: none;
    opacity: 0.5;
}
.cert-corner {
    position: absolute;
    width: 32px;
    height: 32px;
    border-color: #d4af37;
    border-style: solid;
    pointer-events: none;
    opacity: 0.9;
}
.cert-corner.top-left {
    top: 14px;
    left: 14px;
    border-width: 4px 0 0 4px;
}
.cert-corner.top-right {
    top: 14px;
    right: 14px;
    border-width: 4px 4px 0 0;
}
.cert-corner.bottom-left {
    bottom: 14px;
    left: 14px;
    border-width: 0 0 4px 4px;
}
.cert-corner.bottom-right {
    bottom: 14px;
    right: 14px;
    border-width: 0 4px 4px 0;
}
.certificate-header {
    margin-bottom: 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
}
.cert-logo-img {
    max-height: 90px;
    margin-bottom: 1.25rem;
    filter: drop-shadow(0 2px 8px rgba(0,0,0,0.05));
    display: inline-block;
}
.certificate-logo {
    font-family: 'Outfit', sans-serif;
    font-weight: 700;
    font-size: 1.15rem;
    color: #0f172a;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 0.25rem;
}
.certificate-sub-logo {
    font-family: 'Outfit', sans-serif;
    font-size: 0.7rem;
    color: #64748b;
    letter-spacing: 1px;
    text-transform: uppercase;
    font-weight: 500;
}
.certificate-title {
    font-family: 'Outfit', sans-serif;
    font-size: 2.5rem;
    font-weight: 800;
    color: #0e5ba7;
    margin: 0.5rem 0;
    letter-spacing: 4px;
    text-transform: uppercase;
    background: linear-gradient(135deg, #0e5ba7 0%, #1e3a8a 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
.certificate-to {
    font-size: 0.95rem;
    color: #64748b;
    font-family: 'Poppins', sans-serif;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    margin: 1.5rem 0 0.5rem;
    font-weight: 500;
}
.certificate-name {
    font-size: 3rem;
    font-weight: 700;
    font-family: 'Playfair Display', serif;
    color: #f39220;
    background: linear-gradient(135deg, #d97706 0%, #f39220 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
    padding: 0 1rem 0.5rem;
    margin: 0.5rem 0 1.5rem;
    border-bottom: 2px solid #f1f5f9;
}
.certificate-text {
    font-size: 1rem;
    line-height: 1.8;
    color: #334155;
    max-width: 620px;
    margin: 0 auto;
    font-family: 'Poppins', sans-serif;
}
.certificate-course {
    font-weight: 700;
    color: #0e5ba7;
    font-size: 1.35rem;
    margin-top: 0.5rem;
    font-family: 'Outfit', sans-serif;
    letter-spacing: 0.5px;
}
.certificate-date {
    font-size: 0.9rem;
    color: #64748b;
    margin-top: 1.5rem;
    font-style: italic;
}
.certificate-signatures {
    display: flex;
    justify-content: space-around;
    margin-top: 3.5rem;
    gap: 3rem;
}
.certificate-sig-line {
    width: 190px;
    border-top: 1.5px solid #cbd5e1;
    padding-top: 0.5rem;
    font-size: 0.72rem;
    color: #64748b;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 600;
    font-family: 'Outfit', sans-serif;
}

@media print {
    body {
        -webkit-print-color-adjust: exact !important;
        print-color-adjust: exact !important;
    }
    .certificate-title {
        color: #0e5ba7 !important;
        -webkit-text-fill-color: #0e5ba7 !important;
        background: none !important;
    }
    .certificate-name {
        color: #f39220 !important;
        -webkit-text-fill-color: #f39220 !important;
        background: none !important;
    }
}