/* ===========================
   Resource Page Styles
   =========================== */

/* Navigation */
.resource-nav {
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding: var(--spacing-md);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-sm);
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--color-text);
    text-decoration: none;
    font-weight: 600;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: 8px;
    transition: all var(--transition-fast);
}

.back-link:hover {
    background: var(--color-bg);
    transform: translateX(-4px);
}

.back-link svg {
    width: 20px;
    height: 20px;
}

/* Resource Header */
.resource-header {
    background: linear-gradient(135deg, var(--session-color) 0%, color-mix(in srgb, var(--session-color) 80%, black) 100%);
    color: white;
    padding: var(--spacing-xl) var(--spacing-md);
    position: relative;
    overflow: hidden;
}

.resource-header::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    animation: float 10s ease-in-out infinite;
}

.resource-header-content {
    position: relative;
    z-index: 1;
    max-width: 900px;
    margin: 0 auto;
    animation: fadeInDown 0.6s var(--transition-base);
}

.session-badge {
    display: inline-block;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: var(--spacing-md);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.resource-title {
    font-family: var(--font-display);
    font-size: clamp(1.75rem, 4vw, 2.75rem);
    font-weight: 900;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.02em;
}

.session-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.meta-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 0.95rem;
    opacity: 0.95;
}

.meta-item svg {
    width: 20px;
    height: 20px;
}

/* Container */
.resource-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: var(--spacing-xl) var(--spacing-md);
}

/* Section Title */
.section-title {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 900;
    color: var(--color-text);
    margin-bottom: var(--spacing-md);
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 60%;
    height: 4px;
    background: linear-gradient(90deg, var(--color-accent) 0%, transparent 100%);
    border-radius: 2px;
}

/* Description Section */
.description-section {
    margin-bottom: var(--spacing-xl);
    animation: fadeInUp 0.6s var(--transition-base);
}

.description-text {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--color-text-muted);
    max-width: 800px;
}

/* Resources Section */
.resources-section {
    margin-bottom: var(--spacing-xl);
    animation: fadeInUp 0.6s 0.2s var(--transition-base);
    animation-fill-mode: both;
}

.resources-grid {
    display: grid;
    gap: var(--spacing-md);
}

@media (min-width: 768px) {
    .resources-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .resource-card.featured {
        grid-column: 1 / -1;
    }
}

/* Resource Card */
.resource-card {
    background: var(--color-surface);
    border: 2px solid var(--color-border);
    border-radius: 16px;
    padding: var(--spacing-lg);
    display: flex;
    gap: var(--spacing-md);
    align-items: start;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.resource-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--color-accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-base);
}

.resource-card:hover {
    border-color: var(--color-accent);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.resource-card:hover::before {
    transform: scaleX(1);
}

.resource-card.featured {
    background: linear-gradient(135deg, rgba(244, 162, 89, 0.05) 0%, rgba(244, 162, 89, 0.02) 100%);
}

.resource-icon {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.resource-icon.presentation {
    background: linear-gradient(135deg, #4A90E2 0%, #357ABD 100%);
}

.resource-icon.document {
    background: linear-gradient(135deg, #00A99D 0%, #008B82 100%);
}

.resource-icon svg {
    width: 30px;
    height: 30px;
    stroke: white;
}

.resource-info {
    flex: 1;
}

.resource-name {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: var(--spacing-xs);
}

.resource-description {
    font-size: 0.95rem;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-sm);
}

.resource-meta {
    display: flex;
    gap: var(--spacing-sm);
}

.file-type,
.file-size {
    display: inline-block;
    padding: 4px 10px;
    background: var(--color-bg);
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-text-muted);
    text-transform: uppercase;
}

.download-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--color-accent);
    color: white;
    text-decoration: none;
    border-radius: 10px;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all var(--transition-fast);
    box-shadow: var(--shadow-sm);
    white-space: nowrap;
}

.download-btn:hover {
    background: #E89749;
    transform: scale(1.05);
    box-shadow: var(--shadow-md);
}

.download-btn svg {
    width: 18px;
    height: 18px;
}

/* Contact Section */
.contact-section {
    animation: fadeInUp 0.6s 0.4s var(--transition-base);
    animation-fill-mode: both;
}

.contact-card {
    background: linear-gradient(135deg, var(--color-primary) 0%, #2B4A65 100%);
    color: white;
    border-radius: 16px;
    padding: var(--spacing-xl);
    display: flex;
    gap: var(--spacing-lg);
    align-items: center;
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
}

.contact-card::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(244, 162, 89, 0.15) 0%, transparent 70%);
}

.contact-icon {
    width: 80px;
    height: 80px;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.contact-icon svg {
    width: 36px;
    height: 36px;
}

.contact-info {
    position: relative;
    z-index: 1;
}

.contact-info h3 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 900;
    margin-bottom: var(--spacing-xs);
}

.contact-info p {
    opacity: 0.9;
    margin-bottom: var(--spacing-md);
}

.contact-email-btn {
    display: inline-block;
    background: var(--color-accent);
    color: white;
    text-decoration: none;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: 10px;
    font-weight: 700;
    transition: all var(--transition-fast);
    box-shadow: 0 4px 12px rgba(244, 162, 89, 0.3);
}

.contact-email-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(244, 162, 89, 0.4);
}

/* Footer */
.resource-footer {
    background: var(--color-bg);
    border-top: 1px solid var(--color-border);
    padding: var(--spacing-lg);
    text-align: center;
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 768px) {
    .resource-card {
        flex-direction: column;
    }
    
    .contact-card {
        flex-direction: column;
        text-align: center;
    }
    
    .download-btn {
        width: 100%;
        justify-content: center;
    }
}

/* Download Animation */
@keyframes downloadPulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.1);
    }
}

.download-btn:active {
    animation: downloadPulse 0.3s;
}


/* ===========================
   Resource card with thumbnail (YouTube)
   =========================== */
.resource-card--link {
    flex-direction: column;
    padding: 0;
    overflow: hidden;
}

.resource-thumbnail {
    width: 100%;
    height: 160px;
    overflow: hidden;
    background: #000;
}

.channel-thumb {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    display: block;
}

.resource-card--link .resource-info {
    padding: 1rem 1.25rem 0.5rem;
}

.resource-card--link .download-btn {
    margin: 0.75rem 1.25rem 1.25rem;
    align-self: flex-start;
}

.download-btn--external {
    background: #FF0000 !important;
    color: white !important;
}

.download-btn--external:hover {
    background: #cc0000 !important;
    transform: translateY(-2px);
}


/* ===========================
   Coming soon resource cards
   =========================== */
.resource-card--soon {
    opacity: 0.6;
    filter: grayscale(0.4);
    pointer-events: none;
}

.soon-badge {
    background: #f0f0f0;
    color: #999;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.2rem 0.6rem;
    border-radius: 20px;
    border: 1px solid #ddd;
}

.download-btn--soon {
    background: #e0e0e0 !important;
    color: #999 !important;
    cursor: not-allowed;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1rem;
    border-radius: 8px;
    font-size: 0.85rem;
    font-weight: 600;
}

.download-btn--soon svg {
    width: 16px;
    height: 16px;
    stroke: #bbb;
}


/* ===========================
   Feedback card
   =========================== */
.resource-card--feedback .feedback-icon {
    background: #e8f0fe;
}

.resource-card--feedback .feedback-icon svg {
    stroke: #4285F4;
}

.download-btn--feedback {
    background: #4285F4 !important;
    color: white !important;
}

.download-btn--feedback:hover {
    background: #2a6dd9 !important;
    transform: translateY(-2px);
}