/* ============================================
   FAQ & Tutorials Page Styles
   MD3 / Web3 — matches site aesthetic
   ============================================ */

.faq-main {
    padding-bottom: 80px;
}

.faq-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    width: 100%;
}

/* ============================================
   Hero
   ============================================ */
.faq-hero-section {
    padding: 56px 0 40px;
    text-align: center;
}

.faq-hero-section h1 {
    font-size: 2.75rem;
    font-weight: 800;
    margin: 0 0 16px;
    color: var(--md-sys-color-on-surface);
    letter-spacing: -0.03em;
    line-height: 1.1;
}

.faq-hero-section>.faq-container>p {
    font-size: 1.15rem;
    color: var(--md-sys-color-on-surface-variant);
    margin: 0 auto 32px;
    max-width: 640px;
    line-height: 1.6;
}

/* Search Bar */
.faq-search-bar {
    display: flex;
    align-items: center;
    gap: 12px;
    max-width: 560px;
    margin: 0 auto;
    background: rgba(255, 255, 255, 0.75);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.6);
    border-radius: 100px;
    padding: 14px 24px;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
    transition: box-shadow 0.2s;
}

.faq-search-bar:focus-within {
    box-shadow: 0 0 0 3px rgba(59, 116, 224, 0.2), 0 4px 24px rgba(0, 0, 0, 0.06);
    border-color: var(--md-sys-color-primary);
}

.faq-search-bar md-icon {
    color: var(--md-sys-color-on-surface-variant);
    flex-shrink: 0;
}

.faq-search-bar input {
    flex: 1;
    border: none;
    background: transparent;
    font-family: var(--tfp-font-family);
    font-size: 1rem;
    color: var(--md-sys-color-on-surface);
    outline: none;
}

.faq-search-bar input::placeholder {
    color: var(--md-sys-color-on-surface-variant);
}

/* ============================================
   Category Chips
   ============================================ */
.faq-categories-section {
    padding: 0 0 24px;
}

.faq-category-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
}

.faq-chip {
    font-family: var(--tfp-font-family);
    font-size: 0.875rem;
    font-weight: 600;
    padding: 8px 20px;
    border-radius: 100px;
    border: 1px solid rgba(0, 0, 0, 0.1);
    background: rgba(255, 255, 255, 0.7);
    color: var(--md-sys-color-on-surface-variant);
    cursor: pointer;
    transition: all 0.2s;
    backdrop-filter: blur(10px);
}

.faq-chip:hover {
    background: var(--md-sys-color-secondary-container);
    color: var(--md-sys-color-on-secondary-container);
    border-color: transparent;
}

.faq-chip.active {
    background: var(--md-sys-color-primary);
    color: var(--md-sys-color-on-primary);
    border-color: transparent;
    box-shadow: 0 4px 12px rgba(13, 42, 87, 0.25);
}

/* ============================================
   FAQ Layout
   ============================================ */
.faq-accordion-section {
    padding: 0 0 40px;
}

.faq-layout {
    display: grid;
    grid-template-columns: 1fr 280px;
    gap: 32px;
    align-items: start;
}

/* Results count */
.faq-results-count {
    font-size: 0.825rem;
    font-weight: 600;
    color: var(--md-sys-color-primary);
    margin: 0 0 12px;
    min-height: 1.2em;
}

/* ============================================
   FAQ Group
   ============================================ */
.faq-group {
    margin-bottom: 40px;
}

.faq-group-title {
    display: flex;
    align-items: center;
    gap: 14px;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--md-sys-color-on-surface);
    margin: 0 0 16px;
    letter-spacing: -0.01em;
}

.faq-group-icon {
    width: 40px;
    height: 40px;
    background: var(--md-sys-color-primary-container);
    color: var(--md-sys-color-primary);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

/* ============================================
   FAQ Item (Accordion)
   ============================================ */
.faq-item {
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.5);
    border-radius: 16px;
    margin-bottom: 8px;
    overflow: hidden;
    transition: box-shadow 0.2s;
}

.faq-item:hover {
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
}

.faq-item.open {
    border-color: rgba(13, 42, 87, 0.15);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 18px 22px;
    background: transparent;
    border: none;
    font-family: var(--tfp-font-family);
    font-size: 1rem;
    font-weight: 600;
    color: var(--md-sys-color-on-surface);
    text-align: left;
    cursor: pointer;
    transition: color 0.2s;
}

.faq-question:hover {
    color: var(--md-sys-color-primary);
}

.faq-item.open .faq-question {
    color: var(--md-sys-color-primary);
}

.faq-chevron {
    flex-shrink: 0;
    transition: transform 0.3s cubic-bezier(0.2, 0, 0, 1);
    color: var(--md-sys-color-on-surface-variant);
}

.faq-item.open .faq-chevron {
    transform: rotate(180deg);
    color: var(--md-sys-color-primary);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s cubic-bezier(0.2, 0, 0, 1);
}

.faq-item.open .faq-answer {
    max-height: 600px;
}

.faq-answer p {
    margin: 0;
    padding: 0 22px 20px;
    font-size: 0.975rem;
    line-height: 1.75;
    color: var(--md-sys-color-on-surface-variant);
}

.faq-answer a {
    color: var(--md-sys-color-primary);
    font-weight: 600;
    text-decoration: none;
}

.faq-answer a:hover {
    text-decoration: underline;
}

/* No results */
.faq-no-results {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 32px;
    background: var(--md-sys-color-surface-container);
    border-radius: 16px;
    color: var(--md-sys-color-on-surface-variant);
    font-size: 1rem;
}

.faq-no-results md-icon {
    font-size: 32px;
    flex-shrink: 0;
    color: var(--md-sys-color-outline);
}

.faq-no-results a {
    color: var(--md-sys-color-primary);
    font-weight: 600;
    text-decoration: none;
}

/* ============================================
   Sidebar
   ============================================ */
.faq-sidebar {
    display: flex;
    flex-direction: column;
    gap: 20px;
    position: sticky;
    top: 80px;
}

.faq-cta-card {
    background: var(--md-sys-color-primary-container);
    border-radius: 20px;
    padding: 28px 24px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.faq-cta-icon {
    width: 52px;
    height: 52px;
    background: var(--md-sys-color-primary);
    color: var(--md-sys-color-on-primary);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 4px;
}

.faq-cta-icon md-icon {
    --md-icon-size: 28px;
    font-size: 28px;
}

.faq-cta-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--md-sys-color-on-primary-container);
    margin: 0;
}

.faq-cta-card p {
    font-size: 0.875rem;
    color: var(--md-sys-color-on-primary-container);
    opacity: 0.85;
    margin: 0;
    line-height: 1.5;
}

.faq-quick-links-card {
    background: rgba(255, 255, 255, 0.65);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.5);
    border-radius: 20px;
    padding: 24px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
}

.faq-quick-links-card h3 {
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--md-sys-color-on-surface-variant);
    margin: 0 0 16px;
}

.faq-quick-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.faq-quick-list li a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 10px;
    border-radius: 10px;
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--md-sys-color-on-surface);
    transition: background 0.15s, color 0.15s;
}

.faq-quick-list li a:hover {
    background: var(--md-sys-color-primary-container);
    color: var(--md-sys-color-on-primary-container);
}

.faq-quick-list li a md-icon {
    font-size: 18px;
    color: var(--md-sys-color-primary);
}

/* ============================================
   Tutorials Section
   ============================================ */
.faq-tutorials-section {
    padding: 20px 0 40px;
}

.faq-section-header {
    text-align: center;
    margin-bottom: 40px;
}

.faq-section-header h2 {
    font-size: 2.25rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    color: var(--md-sys-color-on-surface);
    margin: 4px 0 12px;
}

.faq-section-header p {
    font-size: 1.1rem;
    color: var(--md-sys-color-on-surface-variant);
    margin: 0;
}

/* Featured Tutorial */
.tutorial-featured {
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: 40px;
    align-items: center;
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.5);
    border-radius: 24px;
    padding: 40px;
    margin-bottom: 40px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.05);
}

.tutorial-featured-video .video-wrapper {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
    border-radius: 16px;
    overflow: hidden;
    background: #000;
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.15);
}

.tutorial-featured-video .video-wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.tutorial-tag {
    display: inline-block;
    background: var(--md-sys-color-primary);
    color: var(--md-sys-color-on-primary);
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    padding: 4px 12px;
    border-radius: 100px;
    margin-bottom: 14px;
}

.tutorial-featured-info h3 {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--md-sys-color-on-surface);
    margin: 0 0 14px;
    letter-spacing: -0.02em;
}

.tutorial-featured-info p {
    font-size: 1rem;
    color: var(--md-sys-color-on-surface-variant);
    line-height: 1.7;
    margin: 0 0 20px;
}

.tutorial-meta {
    display: flex;
    gap: 20px;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--md-sys-color-on-surface-variant);
}

.tutorial-meta span {
    display: flex;
    align-items: center;
    gap: 6px;
}

.tutorial-meta md-icon {
    font-size: 18px;
    color: var(--md-sys-color-primary);
}

/* Tutorial Grid */
.tutorial-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 40px;
}

.tutorial-card {
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.5);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
    transition: transform 0.25s, box-shadow 0.25s;
}

.tutorial-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.1);
}

.tutorial-card .video-wrapper {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
    background: #000;
}

.tutorial-card .video-wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.tutorial-card-info {
    padding: 20px;
}

.tutorial-card-info .tutorial-tag {
    margin-bottom: 10px;
}

.tutorial-card-info h4 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--md-sys-color-on-surface);
    margin: 0 0 8px;
}

.tutorial-card-info p {
    font-size: 0.875rem;
    color: var(--md-sys-color-on-surface-variant);
    margin: 0;
    line-height: 1.5;
}

/* Tutorial Footer CTA */
.tutorial-footer-cta {
    text-align: center;
    padding: 40px;
    background: linear-gradient(135deg, rgba(13, 42, 87, 0.05), rgba(220, 231, 255, 0.4));
    border-radius: 24px;
    border: 1px solid rgba(13, 42, 87, 0.08);
}

.tutorial-footer-cta p {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--md-sys-color-on-surface);
    margin: 0 0 20px;
}

.tutorial-cta-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 1024px) {
    .tutorial-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .tutorial-featured {
        grid-template-columns: 1fr;
    }

    .tutorial-featured-info {
        text-align: center;
    }

    .tutorial-meta {
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .faq-hero-section h1 {
        font-size: 2rem;
    }

    .faq-layout {
        grid-template-columns: 1fr;
    }

    .faq-sidebar {
        position: static;
        order: -1;
        display: grid;
        grid-template-columns: 1fr 1fr;
    }

    .tutorial-grid {
        grid-template-columns: 1fr;
    }

    .tutorial-footer-cta {
        padding: 28px 20px;
    }

    .tutorial-cta-buttons {
        flex-direction: column;
        align-items: center;
    }

    .faq-category-chips {
        gap: 8px;
    }
}

@media (max-width: 480px) {
    .faq-sidebar {
        grid-template-columns: 1fr;
    }
}