/* Docs / Tutorial Page — Styles */

/* ===============================================
   Sticky Platform Tab Bar (shared with download)
   =============================================== */
.platform-tabs-wrap {
    position: sticky;
    top: 72px;
    z-index: 900;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--color-border);
}

.platform-tabs {
    display: flex;
    gap: 4px;
    padding: 6px 0;
    height: 52px;
    align-items: center;
    overflow-x: auto;
    scrollbar-width: none;
}

.platform-tabs::-webkit-scrollbar { display: none; }

.ptab {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 7px 20px;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-text-muted);
    border-radius: var(--radius-btn);
    transition: all 0.2s ease;
    white-space: nowrap;
    text-decoration: none;
    border: 1.5px solid transparent;
}

.ptab:hover {
    color: var(--color-text-main);
    background: var(--color-bg-alt);
}

.ptab.active {
    background: var(--color-text-main);
    color: #fff;
    border-color: transparent;
}

/* ===============================================
   Badges
   =============================================== */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 4px 11px;
    border-radius: 99px;
    font-size: 0.71rem;
    font-weight: 700;
    letter-spacing: 0.03em;
}

.badge-primary  { background: var(--color-text-main); color: #fff; }
.badge-new      { background: rgba(31,67,119,0.10); color: var(--color-brand-blue); border: 1px solid rgba(31,67,119,0.28); }
.badge-archived { background: rgba(245,158,11,0.10); color: #d97706; border: 1px solid rgba(245,158,11,0.28); }

/* ===============================================
   Platform Heading
   =============================================== */
.platform-heading {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    margin-bottom: 40px;
}

.platform-heading-icon {
    width: 56px;
    height: 56px;
    border-radius: 16px;
    background: var(--color-text-main);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.platform-heading-android { background: #3ddc84; color: #fff; }
.platform-heading-ios     { background: #1d1d1f; color: #fff; }

.platform-heading h2 { font-size: 1.75rem; margin-bottom: 8px; }
.platform-heading p  { font-size: 0.95rem; margin: 0; }

/* ===============================================
   Platform Note Box
   =============================================== */
.platform-note {
    display: flex;
    gap: 14px;
    align-items: flex-start;
    padding: 18px 24px;
    background: rgba(14,165,233,0.04);
    border: 1px solid rgba(14,165,233,0.18);
    border-radius: 12px;
    margin-top: 24px;
    font-size: 0.875rem;
    color: var(--color-text-muted);
    line-height: 1.75;
}

.platform-note > i:first-child {
    color: var(--color-brand-blue);
    font-size: 1rem;
    margin-top: 2px;
    flex-shrink: 0;
}

.platform-note strong { color: var(--color-text-main); }

/* ===============================================
   Inline Link
   =============================================== */
.inline-link {
    color: var(--color-brand-blue);
    font-weight: 600;
    text-decoration: underline;
    text-underline-offset: 2px;
    transition: color 0.2s ease;
}

.inline-link:hover { color: var(--color-brand-blue); }

/* ===============================================
   iOS App Icon styles (shared)
   =============================================== */
.ios-card-icon {
    width: 48px;
    height: 48px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    font-weight: 800;
    color: #fff;
    flex-shrink: 0;
}

.ios-stash  { background: linear-gradient(135deg, #667eea, #764ba2); }
.ios-rocket { background: linear-gradient(135deg, #f6d365, #fda085); }
.ios-qx     { background: linear-gradient(135deg, #4facfe, #00f2fe); }

/* ===============================================
   Code Blocks (shared with download page)
   =============================================== */
.code-block {
    background: #1a1b26;
    border-radius: 12px;
    overflow: hidden;
}

.code-block-header {
    background: #16161e;
    padding: 10px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid rgba(255,255,255,0.05);
}

.code-lang {
    font-size: 0.72rem;
    font-weight: 600;
    color: rgba(255,255,255,0.3);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-family: 'Courier New', monospace;
}

.code-copy-btn {
    font-size: 0.78rem;
    color: rgba(255,255,255,0.4);
    background: none;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 4px;
    font-family: var(--font-family-base);
    transition: color 0.2s ease;
}

.code-copy-btn:hover { color: rgba(255,255,255,0.75); }

.code-block pre {
    margin: 0;
    padding: 24px;
    font-family: 'Courier New', Courier, monospace;
    font-size: 0.855rem;
    line-height: 1.9;
    color: rgba(255,255,255,0.7);
    overflow-x: auto;
}

.cli-comment { color: #565f89; font-style: italic; display: block; }

/* ===============================================
   Linux CLI Section (shared)
   =============================================== */
.linux-cli-section {
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 36px 40px;
    margin-top: 24px;
}

.linux-cli-section h3 {
    font-size: 1.1rem;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.linux-cli-desc { font-size: 0.9rem !important; margin-bottom: 20px !important; }

.linux-cli-note {
    display: flex;
    gap: 8px;
    align-items: flex-start;
    margin-top: 16px;
    font-size: 0.83rem;
    color: var(--color-text-muted);
    line-height: 1.7;
}

.linux-cli-note i {
    color: var(--color-brand-blue);
    margin-top: 2px;
    flex-shrink: 0;
}

.linux-cli-note > span {
    flex: 1;
    min-width: 0;
}

.linux-cli-note code {
    background: var(--color-bg-alt);
    padding: 1px 6px;
    border-radius: 4px;
    font-size: 0.8rem;
    color: var(--color-text-main);
    font-family: 'Courier New', monospace;
}

/* ===============================================
   Button Sizes
   =============================================== */
.btn-sm { padding: 7px 14px !important; font-size: 0.82rem !important; }

.btn-lg { padding: 14px 32px; font-size: 1.05rem; }

/* ===============================================
   Docs Hero Section
   =============================================== */
.docs-hero {
    padding: 64px 0 56px;
    border-top: none;
    background: var(--color-bg);
}

.docs-hero-inner {
    max-width: 760px;
}

.docs-hero .eyebrow-tag {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    background: rgba(32, 33, 36, 0.07);
    color: var(--color-text-muted);
    font-size: 0.82rem;
    font-weight: 600;
    padding: 6px 14px;
    border-radius: 99px;
    margin-bottom: 20px;
    letter-spacing: 0.02em;
}

.docs-hero h1 {
    font-size: 2.8rem;
    margin-bottom: 16px;
    letter-spacing: -0.025em;
    text-wrap: balance;
    font-weight: 700;
}

.docs-hero p {
    font-size: 1.1rem;
    margin-bottom: 32px;
    max-width: 640px;
}

.docs-hero-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 40px;
}

.docs-hero-stats {
    display: flex;
    gap: 40px;
    flex-wrap: wrap;
}

.docs-stat {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.docs-stat-num {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--color-text-main);
    letter-spacing: -0.02em;
    line-height: 1;
}

.docs-stat span:last-child {
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    font-weight: 600;
    color: var(--color-text-muted);
}

/* ===============================================
   Platform Tutorial Sections
   =============================================== */
.docs-platform-section {
    padding: 80px 0;
    border-top: 1px solid var(--color-border);
}

.docs-platform-section-alt {
    background: var(--color-bg-alt);
}

/* ===============================================
   Tutorial Block (main card-like container)
   =============================================== */
.tutorial-block {
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 40px;
    margin-bottom: 24px;
}

.tutorial-block:first-of-type,
.tutorial-block-primary {
    border-color: var(--color-text-main);
    border-width: 2px;
    position: relative;
    overflow: hidden;
}

.tutorial-block:first-of-type::before,
.tutorial-block-primary::before {
    content: '';
    position: absolute;
    top: 0; right: 0;
    width: 220px; height: 220px;
    background: radial-gradient(circle at top right, rgba(14,165,233,0.06), transparent 70%);
    pointer-events: none;
}

.tutorial-block-secondary {
    border-color: var(--color-border);
    border-width: 1px;
}

.tutorial-block-secondary::before { display: none; }

.tutorial-block-header {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    margin-bottom: 32px;
}

.tutorial-block-icon {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    background: var(--color-text-main);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    flex-shrink: 0;
}

.tutorial-block-icon-sm {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    font-size: 1rem;
}

.tutorial-block-icon-mac    { background: #1d1d1f; }
.tutorial-block-icon-android { background: #3ddc84; color: #fff; }
.tutorial-block-icon-linux  { background: var(--color-text-main); color: var(--blob-yellow); }

.tutorial-badges {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 10px;
}

.tutorial-block-header h3 {
    font-size: 1.35rem;
    margin-bottom: 6px;
}

.tutorial-lead {
    font-size: 0.95rem !important;
    line-height: 1.75 !important;
    margin: 0 !important;
}

/* ===============================================
   Tutorial Steps
   =============================================== */
.tutorial-steps {
    display: flex;
    flex-direction: column;
    gap: 0;
    position: relative;
}

.tutorial-step {
    display: flex;
    gap: 24px;
    padding: 28px 0;
    border-bottom: 1px dashed var(--color-border);
    position: relative;
}

.tutorial-step:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.tutorial-step-num {
    width: 36px;
    height: 36px;
    min-width: 36px;
    background: var(--color-text-main);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    font-weight: 800;
    margin-top: 2px;
    flex-shrink: 0;
}

.tutorial-step-body {
    flex: 1;
    min-width: 0;
}

.tutorial-step-body h4 {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--color-text-main);
}

.tutorial-step-body p {
    font-size: 0.925rem !important;
    line-height: 1.8 !important;
    margin-bottom: 16px !important;
}

.tutorial-step-body p:last-child { margin-bottom: 0 !important; }

.tutorial-step-body code {
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    padding: 2px 7px;
    border-radius: 5px;
    font-size: 0.83rem;
    color: var(--color-text-main);
    font-family: 'Courier New', monospace;
}

.tutorial-step-body .code-block pre code {
    background: transparent;
    border: none;
    padding: 0;
    border-radius: 0;
    font-size: inherit;
    color: inherit;
}

/* Download Shortcut Row */
.download-shortcut {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin: 16px 0;
}

/* Numbered sub-steps */
.numbered-steps {
    list-style: decimal;
    padding-left: 20px;
    margin: 12px 0 16px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.numbered-steps li {
    font-size: 0.92rem;
    color: var(--color-text-muted);
    line-height: 1.65;
    padding-left: 4px;
}

.numbered-steps li strong { color: var(--color-text-main); }

/* Feature check list */
.feature-check-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin: 12px 0 16px;
    padding: 0;
}

.feature-check-list li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 0.92rem;
    color: var(--color-text-muted);
    line-height: 1.65;
}

.feature-check-list li i {
    color: var(--color-brand-blue);
    font-size: 0.75rem;
    margin-top: 4px;
    flex-shrink: 0;
}

.feature-check-list li > span {
    flex: 1;
    min-width: 0;
}

.feature-check-list li strong { color: var(--color-text-main); }

/* ===============================================
   Tip Boxes
   =============================================== */
.tip-box {
    display: flex;
    gap: 10px;
    align-items: flex-start;
    padding: 14px 18px;
    background: rgba(14,165,233,0.05);
    border: 1px solid rgba(14,165,233,0.2);
    border-radius: 10px;
    font-size: 0.875rem;
    color: var(--color-text-muted);
    line-height: 1.7;
    margin: 14px 0;
}

.tip-box > i:first-child {
    color: var(--color-brand-blue);
    font-size: 0.95rem;
    margin-top: 1px;
    flex-shrink: 0;
}

.tip-box strong { color: var(--color-text-main); }

.tip-box code {
    background: rgba(255,255,255,0.7);
    border: 1px solid rgba(14,165,233,0.15);
    padding: 1px 6px;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    font-size: 0.8rem;
    color: var(--color-text-main);
}

.tip-box-yellow {
    background: rgba(245,158,11,0.05);
    border-color: rgba(245,158,11,0.22);
}

.tip-box-yellow > i:first-child { color: #f59e0b; }

/* ===============================================
   Info Cards (2-column visual compare)
   =============================================== */
.info-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    margin: 14px 0;
}

.info-card {
    display: flex;
    gap: 12px;
    align-items: flex-start;
    padding: 16px;
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: 12px;
}

.info-card-icon {
    width: 36px;
    height: 36px;
    min-width: 36px;
    border-radius: 9px;
    background: var(--color-text-main);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    flex-shrink: 0;
}

.info-card strong {
    display: block;
    font-size: 0.88rem;
    font-weight: 700;
    color: var(--color-text-main);
    margin-bottom: 4px;
}

.info-card p {
    font-size: 0.82rem !important;
    line-height: 1.65 !important;
    margin: 0 !important;
}

/* ===============================================
   Tutorial GitHub Reference Link
   =============================================== */
.tutorial-github-ref {
    margin-top: 28px;
    padding-top: 20px;
    border-top: 1px solid var(--color-border);
}

.tutorial-github-ref a {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    font-size: 0.83rem;
    color: var(--color-text-muted);
    transition: color 0.2s ease;
}

.tutorial-github-ref a:hover { color: var(--color-text-main); }

/* Small GitHub link inside tutorial blocks */
.github-link-sm {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.81rem;
    color: var(--color-text-muted);
    margin-top: 10px;
    transition: color 0.2s ease;
}

.github-link-sm:hover { color: var(--color-text-main); }

/* ===============================================
   Secondary Tutorial Descriptions
   =============================================== */
.tutorial-secondary-desc {
    font-size: 0.9rem !important;
    line-height: 1.75 !important;
    margin-bottom: 16px !important;
}

.tutorial-secondary-steps {
    font-size: 0.875rem !important;
    line-height: 1.75 !important;
    margin-top: 12px !important;
    margin-bottom: 0 !important;
}

.tutorial-secondary-steps code {
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    font-size: 0.8rem;
    color: var(--color-text-main);
}

/* ===============================================
   Two-column grid for secondary tutorial blocks
   =============================================== */
.tutorial-grid-secondary {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-bottom: 24px;
}

/* ===============================================
   iOS Prerequisite Block
   =============================================== */
.ios-prereq-block {
    background: #fff;
    border: 1.5px solid rgba(245,158,11,0.3);
    border-radius: var(--radius-lg);
    padding: 36px 40px;
    margin-bottom: 28px;
}

.ios-prereq-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.ios-prereq-header i {
    color: #f59e0b;
    font-size: 1.3rem;
    flex-shrink: 0;
}

.ios-prereq-header h3 { margin: 0; font-size: 1.2rem; }

.ios-prereq-block > p {
    font-size: 0.9rem !important;
    line-height: 1.75 !important;
    margin-bottom: 24px !important;
}

/* ===============================================
   Download CTA Section
   =============================================== */
.docs-cta-section {
    padding: 80px 0;
    background: var(--color-text-main);
    border-top: none;
}

.docs-cta-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
    flex-wrap: wrap;
}

.docs-cta-content h2 {
    font-size: 2rem;
    color: #fff;
    margin-bottom: 10px;
}

.docs-cta-content p {
    color: rgba(255,255,255,0.6);
    max-width: 480px;
    margin: 0;
}

.docs-cta-actions {
    display: flex;
    gap: 12px;
    flex-shrink: 0;
    flex-wrap: wrap;
}

.docs-cta-section .btn-primary {
    background: #fff;
    color: var(--color-text-main);
}

.docs-cta-section .btn-primary:hover {
    background: #e8e8e8;
}

.docs-cta-section .btn-outline {
    border-color: rgba(255,255,255,0.3);
    color: #fff;
    background: transparent;
}

.docs-cta-section .btn-outline:hover {
    background: rgba(255,255,255,0.1);
}

/* ===============================================
   Pulse animation (used on primary download buttons)
   =============================================== */
@keyframes btnPulse {
    0%   { box-shadow: 0 0 0 0   rgba(32,33,36,0.35); }
    70%  { box-shadow: 0 0 0 10px rgba(32,33,36,0); }
    100% { box-shadow: 0 0 0 0   rgba(32,33,36,0); }
}

.btn-pulse { animation: btnPulse 2.2s ease infinite; }
.btn-pulse:hover { animation: none; }

/* ===============================================
   Quick Start Section Override
   (inherits from main.css .quick-start-section)
   =============================================== */
.quick-start-section .section-header {
    max-width: 700px;
}

/* ===============================================
   FAQ Section (inherits from main.css)
   =============================================== */
.faq-section {
    padding-top: 100px;
    padding-bottom: 100px;
}

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

@media (max-width: 992px) {
    .info-cards {
        grid-template-columns: 1fr;
    }

    .docs-cta-inner {
        flex-direction: column;
        text-align: center;
        align-items: flex-start;
    }

    .docs-cta-content p { max-width: none; }

    .ios-prereq-block { padding: 28px 24px; }
}

@media (max-width: 768px) {
    .docs-hero { padding: 40px 0 36px; }
    .docs-hero h1 { font-size: 2.2rem; }
    .docs-hero-stats {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 20px 32px;
    }
    .docs-stat-num { font-size: 1.5rem; }

    .docs-platform-section { padding: 48px 0; }

    .platform-heading { flex-direction: column; gap: 12px; }
    .platform-heading h2 { font-size: 1.5rem; }

    .tutorial-block { padding: 24px 20px; }
    .tutorial-block-header { flex-direction: column; gap: 14px; }

    .tutorial-step { flex-direction: column; gap: 12px; padding: 20px 0; }
    .tutorial-step-num { width: 30px; height: 30px; min-width: 30px; font-size: 0.82rem; }

    .download-shortcut { flex-direction: column; }
    .download-shortcut .btn { width: 100%; justify-content: center; }

    .linux-cli-section { padding: 24px 20px; }

    .docs-cta-section { padding: 48px 0; }
    .docs-cta-content h2 { font-size: 1.6rem; }
    .docs-cta-actions { flex-direction: column; width: 100%; }
    .docs-cta-actions .btn { width: 100%; justify-content: center; }

    .ios-prereq-block { padding: 24px 16px; }
    .ios-prereq-block .tutorial-steps { margin-top: 8px; }

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

    .faq-section {
        padding-top: 60px;
        padding-bottom: 60px;
    }
}

@media (max-width: 480px) {
    .ptab span { display: none; }
    .ptab i { font-size: 1.1rem; }
    .ptab { padding: 8px 14px; }

    .docs-hero h1 { font-size: 1.85rem; }
    .docs-hero-actions { flex-direction: column; }
    .docs-hero-actions .btn { width: 100%; justify-content: center; }
}