/* ═══════════════════════════════════════════════════════════
   Sudota Intelligence — Blog Pages (shared stylesheet)
   Source of truth: .design_library/sudota-intelligence/
   Tokens:  colors_and_type.css
   Components: components.css (button, card, badge, accordion,
               table, pricing-card, stepper)
   Theme: light-only, cool-slate neutrals
   ═══════════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Sora:wght@400;500;600;700&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');
@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500;600&display=swap');

/* ── Tokens (colors_and_type.css) ── */
:root {
    /* Brand Primary */
    --color-primary: #1D6AE5;
    --color-primary-hover: #1558C0;
    --color-primary-subtle: rgba(29, 106, 229, 0.08);
    --color-primary-fg: #FFFFFF;

    /* Surfaces (Cool Slate) */
    --color-canvas: #F8FAFC;
    --color-surface: #FFFFFF;
    --color-surface-raised: #FFFFFF;
    --color-muted: #F1F5F9;
    --color-border: #E2E8F0;
    --color-border-light: #F1F5F9;

    /* Text */
    --color-text: #0F172A;
    --color-text-secondary: #334155;
    --color-text-muted: #64748B;
    --color-text-faint: #94A3B8;

    /* Semantic */
    --color-success: #059669;
    --color-success-subtle: #ECFDF5;
    --color-warning: #D97706;
    --color-warning-subtle: #FFFBEB;
    --color-danger: #DC2626;
    --color-danger-subtle: #FEF2F2;
    --color-info: #1D6AE5;
    --color-purple: #7C3AED;
    --color-purple-subtle: #F5F3FF;

    /* Data Visualization */
    --color-dataviz-1: #1D6AE5;
    --color-dataviz-2: #7C3AED;
    --color-dataviz-3: #059669;
    --color-dataviz-4: #D97706;
    --color-dataviz-5: #DC2626;
    --color-dataviz-6: #0EA5E9;

    /* Typography */
    --font-display: 'Sora', sans-serif;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Noto Sans TC', 'Noto Sans SC', 'PingFang TC', 'Microsoft JhengHei', sans-serif;
    --font-mono: 'IBM Plex Mono', 'SF Mono', 'Fira Code', monospace;

    --text-display: 2.5rem;
    --text-h1: 1.875rem;
    --text-h2: 1.5rem;
    --text-h3: 1.25rem;
    --text-body: 1rem;
    --text-sm: 0.875rem;
    --text-xs: 0.75rem;
    --text-2xs: 0.6875rem;

    /* Spacing (4px base) */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;

    /* Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-xl: 20px;
    --radius-full: 9999px;

    /* Shadows (only 3 levels) */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);

    /* Layout */
    --header-height: 60px;
    --content-max-width: 1200px;
    --content-padding: 2rem;
    --content-padding-mobile: 1rem;

    /* Motion */
    --transition-fast: 150ms ease;
    --transition-normal: 200ms ease;
    --transition-expand: 250ms ease-out;

    /* Sudota.com-aligned aliases */
    --sudota-logo-url: url("/assets/favicon.svg");
}

/* ── Reset & base ── */
*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    margin: 0;
    background: var(--color-canvas);
    color: var(--color-text);
    font-family: var(--font-sans);
    font-size: var(--text-body);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

img { max-width: 100%; display: block; }

h1, h2, h3, h4 {
    font-family: var(--font-display);
    color: var(--color-text);
    line-height: 1.25;
    margin: 0;
}

p { margin: 0 0 var(--space-4); }

a { color: var(--color-primary); }

section[id] { scroll-margin-top: calc(var(--header-height) + var(--space-4)); }

/* ── Layout ── */
.container {
    max-width: var(--content-max-width);
    margin-inline: auto;
    padding-inline: var(--content-padding);
}

/* ── Header (frosted glass) ── */
.site-header {
    position: sticky;
    top: 0;
    z-index: 40;
    background: rgba(255, 255, 255, 0.82);
    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border-light);
}

.site-header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
    height: var(--header-height);
}

.logo {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    text-decoration: none;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: var(--text-body);
    color: var(--color-text);
    white-space: nowrap;
}

.logo-mark {
    width: 26px;
    height: 26px;
    flex-shrink: 0;
    display: grid;
    place-items: center;
    color: var(--color-primary);
}
.logo-mark svg {
    display: block;
    width: 100%;
    height: 100%;
}

.logo-text { letter-spacing: -0.01em; }

.site-nav { display: flex; align-items: center; gap: var(--space-6); }

.site-nav a {
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.site-nav a:hover { color: var(--color-primary); }
.site-nav a.active { color: var(--color-primary); font-weight: 600; }

.site-actions { display: flex; align-items: center; gap: var(--space-3); }

.btn-login {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-text-secondary);
    background: none;
    border: none;
    padding: var(--space-2) var(--space-3);
    cursor: pointer;
    text-decoration: none;
    transition: color var(--transition-fast);
}

.btn-login:hover { color: var(--color-primary); }

/* Mobile menu (zero-JS) */
.mobile-menu { position: relative; display: none; }

.mobile-menu-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    color: var(--color-text-secondary);
    cursor: pointer;
    list-style: none;
    background: var(--color-muted);
}

.mobile-menu-btn::-webkit-details-marker { display: none; }
.mobile-menu-btn::marker { content: ''; }

.mobile-menu-btn svg { width: 20px; height: 20px; }

.mobile-menu[open] .mobile-menu-btn { background: var(--color-primary-subtle); color: var(--color-primary); }

.mobile-menu-panel {
    position: absolute;
    top: calc(100% + var(--space-2));
    right: 0;
    width: min(300px, calc(100vw - 2rem));
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: var(--space-3);
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.mobile-menu-panel a {
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-text-secondary);
    text-decoration: none;
}

.mobile-menu-panel a:hover { background: var(--color-muted); color: var(--color-primary); }

.mobile-menu-panel .btn { justify-content: center; margin-top: var(--space-2); }

/* ── Breadcrumb ── */
.breadcrumb {
    padding-top: var(--space-6);
    font-size: var(--text-sm);
}

.breadcrumb ol {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--space-2);
    margin: 0;
    padding: 0;
}

.breadcrumb li { display: inline-flex; align-items: center; }

.breadcrumb li + li::before {
    content: "/";
    color: var(--color-text-faint);
    margin-right: var(--space-2);
}

.breadcrumb a {
    color: var(--color-text-muted);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.breadcrumb a:hover { color: var(--color-primary); }

.breadcrumb [aria-current="page"] { color: var(--color-text-secondary); font-weight: 500; }

/* ── Hero ── */
.blog-hero {
    padding: var(--space-12) 0 var(--space-8);
}

.hero-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-xs);
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--color-primary);
    background: var(--color-primary-subtle);
    border-radius: var(--radius-full);
    padding: var(--space-1) var(--space-3);
}

.blog-hero h1 {
    font-size: clamp(2rem, 4vw, var(--text-display));
    font-weight: 700;
    line-height: 1.15;
    letter-spacing: -0.02em;
    margin: var(--space-4) 0 var(--space-4);
    max-width: 20ch;
}

.hero-sub {
    font-size: var(--text-h3);
    font-weight: 400;
    line-height: 1.6;
    color: var(--color-text-secondary);
    max-width: 56ch;
    margin: 0 0 var(--space-6);
}

.hero-sub em { color: var(--color-text); }

.hero-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    margin-bottom: var(--space-6);
}

.hero-meta span + span::before {
    content: "·";
    color: var(--color-text-faint);
    margin-right: var(--space-2);
}

.hero-cta-row {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--space-3);
    margin-bottom: var(--space-8);
}

/* ── Buttons ── */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: 10px var(--space-5);
    border: none;
    border-radius: var(--radius-md);
    font-family: var(--font-sans);
    font-size: var(--text-sm);
    font-weight: 600;
    line-height: 1.25;
    white-space: nowrap;
    cursor: pointer;
    flex-shrink: 0;
    min-width: auto;
    text-decoration: none;
    transition: background var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal), filter var(--transition-normal), transform var(--transition-fast);
}

.btn:disabled { opacity: .5; cursor: not-allowed; }

.btn-lg { padding: 12px var(--space-8); font-size: var(--text-body); }

.btn-sm { padding: 8px var(--space-4); font-size: var(--text-sm); }

.btn-primary { background: var(--color-primary); color: var(--color-primary-fg); }

.btn-primary:hover, .btn-primary.is-hover {
    background: var(--color-primary-hover);
    box-shadow: var(--shadow-md);
}

.btn-ghost {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    color: var(--color-text-secondary);
}

.btn-ghost:hover, .btn-ghost.is-hover {
    background: var(--color-muted);
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.btn-launch {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-dataviz-6) 100%);
    color: var(--color-primary-fg);
    font-weight: 700;
    box-shadow: var(--shadow-lg);
}

.btn-launch:hover { filter: brightness(1.08); }

/* ── Article / prose ── */
.article-body { padding-bottom: var(--space-12); }

.article-body > section { margin-top: var(--space-12); }

.article-body > section:first-of-type { margin-top: var(--space-8); }

.prose p {
    color: var(--color-text-secondary);
    line-height: 1.75;
    max-width: 72ch;
}

.prose strong { color: var(--color-text); font-weight: 600; }

.section-head { margin-bottom: var(--space-6); }

.section-head h2 {
    font-size: var(--text-h2);
    font-weight: 700;
    letter-spacing: -0.01em;
    margin-bottom: var(--space-3);
}

.section-head p {
    color: var(--color-text-secondary);
    max-width: 68ch;
    margin: 0;
}

/* ── Cards ── */
.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: var(--space-5);
    min-width: 0;
    transition: border-color var(--transition-normal), box-shadow var(--transition-normal), transform var(--transition-normal);
}

.card-title { margin: 0; font-size: var(--text-body); font-weight: 600; color: var(--color-text); overflow-wrap: break-word; }

.card-meta { margin: var(--space-1) 0 0; font-size: var(--text-sm); color: var(--color-text-muted); }

.card-grid { display: grid; gap: var(--space-4); }

.card-grid--4 { grid-template-columns: repeat(4, 1fr); }
.card-grid--3 { grid-template-columns: repeat(3, 1fr); }
.card-grid--2 { grid-template-columns: repeat(2, 1fr); }

/* Feature / persona cards */
.feature-card {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    box-shadow: var(--shadow-sm);
}

.feature-card:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

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

.feature-icon svg { width: 20px; height: 20px; }

.feature-icon.purple { background: var(--color-purple-subtle); color: var(--color-purple); }

.feature-card h3 { font-size: var(--text-body); font-weight: 600; }

.feature-card p { font-size: var(--text-sm); color: var(--color-text-muted); line-height: 1.6; margin: 0; }

/* Benefit grid (2x2) with colored top accents */
.benefit-card { border-top: 3px solid var(--color-primary); }
.benefit-card.green { border-top-color: var(--color-success); }
.benefit-card.purple { border-top-color: var(--color-purple); }
.benefit-card.orange { border-top-color: var(--color-warning); }

.benefit-card h3 { font-size: var(--text-body); font-weight: 600; margin-bottom: var(--space-2); }

.benefit-card p { font-size: var(--text-sm); color: var(--color-text-muted); margin: 0; line-height: 1.6; }

/* ── Badges / pills ── */
.badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-1);
    padding: 2px var(--space-2);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: 600;
    white-space: nowrap;
    flex-shrink: 0;
    transition: filter var(--transition-fast);
}

.badge:hover { filter: brightness(1.08); }

.badge-primary { background: var(--color-primary-subtle); color: var(--color-primary); }
.badge-success { background: var(--color-success-subtle); color: var(--color-success); }
.badge-warning { background: var(--color-warning-subtle); color: var(--color-warning); }
.badge-danger { background: var(--color-danger-subtle); color: var(--color-danger); }
.tag-purple { background: var(--color-purple-subtle); color: var(--color-purple); }
.tag-gray { background: var(--color-muted); color: var(--color-text-muted); }

/* Feature list with pill badges */
.feature-pill-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: var(--space-3); }

.feature-pill-list li {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-4) var(--space-5);
}

.feature-pill-list .badge { margin-top: 2px; }

.feature-pill-list p { margin: 0; font-size: var(--text-sm); color: var(--color-text-secondary); line-height: 1.6; }

/* Check list */
.check-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: var(--space-3); }

.check-list li { display: flex; align-items: flex-start; gap: var(--space-3); font-size: var(--text-body); color: var(--color-text-secondary); }

.check-list li svg { flex-shrink: 0; margin-top: 3px; color: var(--color-success); width: 20px; height: 20px; }

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

/* ── Numbered steps (guide "How it works") ── */
.steps-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: var(--space-4); }

.steps-list li {
    display: flex;
    align-items: flex-start;
    gap: var(--space-4);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-4) var(--space-5);
}

.step-number {
    flex-shrink: 0;
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
    background: var(--color-primary);
    color: var(--color-primary-fg);
    font-family: var(--font-sans);
    font-weight: 700;
    font-size: var(--text-sm);
    display: flex;
    align-items: center;
    justify-content: center;
}

.steps-list h3 { font-size: var(--text-body); font-weight: 600; margin: 2px 0 var(--space-1); }

.steps-list p { margin: 0; font-size: var(--text-sm); color: var(--color-text-muted); line-height: 1.6; }

/* ── Risk table ── */
.table-scroll { overflow-x: auto; }

.tbl {
    width: 100%;
    border-collapse: collapse;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    min-width: 640px;
}

.tbl th {
    background: var(--color-muted);
    font-weight: 600;
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    padding: var(--space-3) var(--space-4);
    text-align: left;
    white-space: nowrap;
}

.tbl td {
    padding: var(--space-4);
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    border-bottom: 1px solid var(--color-border-light);
    vertical-align: top;
    line-height: 1.6;
}

.tbl tr:last-child td { border-bottom: none; }

.tbl td strong { font-weight: 600; color: var(--color-text); }

.risk-table th.col-generic { background: var(--color-warning-subtle); color: var(--color-warning); }
.risk-table th.col-sudota { background: var(--color-success-subtle); color: var(--color-success); }

.risk-table td.col-generic { background: var(--color-warning-subtle); }
.risk-table td.col-sudota { background: var(--color-success-subtle); }

/* ── Accordion (FAQ) ── */
.faq-wrap {
    background: var(--color-surface);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-lg);
    padding: var(--space-3) var(--space-5);
    box-shadow: var(--shadow-sm);
}

.accordion-item { border-bottom: 1px solid var(--color-border-light); }
.accordion-item:last-child { border-bottom: none; }

.accordion-item summary {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-4) 0;
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-text);
    cursor: pointer;
    list-style: none;
    user-select: none;
    transition: color var(--transition-fast);
}

.accordion-item summary::-webkit-details-marker { display: none; }
.accordion-item summary::marker { display: none; content: ''; }

.accordion-item summary:hover { color: var(--color-primary); }

.accordion-chevron {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    color: var(--color-text-muted);
    transition: transform var(--transition-normal);
    margin-left: var(--space-3);
}

.accordion-item[open] .accordion-chevron { transform: rotate(90deg); }
.accordion-item summary:hover .accordion-chevron { color: var(--color-primary); }

.accordion-body {
    padding: 0 0 var(--space-4);
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    line-height: 1.7;
}

/* ── Callouts ── */
.callout {
    border-radius: var(--radius-md);
    padding: var(--space-4) var(--space-5);
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.callout-title {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-xs);
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.callout-title svg { width: 14px; height: 14px; }

.callout p { margin: 0; font-size: var(--text-sm); line-height: 1.7; color: var(--color-text-secondary); }

.callout--goal { background: var(--color-primary-subtle); }
.callout--goal .callout-title { color: var(--color-primary); }

.callout--tip { background: var(--color-success-subtle); }
.callout--tip .callout-title { color: var(--color-success); }

.callout--check { background: var(--color-muted); }
.callout--check .callout-title { color: var(--color-text-secondary); }

.callout--warn { background: var(--color-warning-subtle); }
.callout--warn .callout-title { color: var(--color-warning); }

/* Setup info (blue tint box in hero) */
.callout--setup {
    background: var(--color-primary-subtle);
    border: 1px solid rgba(29, 106, 229, 0.18);
    border-radius: var(--radius-lg);
    padding: var(--space-5);
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2) var(--space-8);
    max-width: 640px;
}

.callout--setup strong {
    display: block;
    font-size: var(--text-xs);
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--color-primary);
    margin-bottom: var(--space-1);
}

.callout--setup span { font-size: var(--text-sm); color: var(--color-text-secondary); }

/* Key line (section lead-out highlight) */
.key-line {
    background: var(--color-primary-subtle);
    border-radius: var(--radius-md);
    padding: var(--space-4) var(--space-5);
    font-size: var(--text-body);
    font-weight: 500;
    color: var(--color-text);
    line-height: 1.7;
    max-width: 72ch;
}

/* ── Step cards (setup guide) ── */
.step-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: var(--space-6);
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    box-shadow: var(--shadow-sm);
}

.step-card-head { display: flex; align-items: center; gap: var(--space-4); }

.step-card-head .step-number { width: 40px; height: 40px; font-size: var(--text-body); }

.step-card-head h2 { font-size: var(--text-h3); font-weight: 700; line-height: 1.3; }

.step-body { display: flex; flex-direction: column; gap: var(--space-4); }

.step-body ol {
    margin: 0;
    padding-left: var(--space-5);
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.step-body ol li { font-size: var(--text-sm); color: var(--color-text-secondary); line-height: 1.7; }

.step-body ol li strong { color: var(--color-text); }

.step-extra { display: flex; flex-direction: column; gap: var(--space-3); }

/* ── Media figures (product screenshots / animated demos) ── */
.blog-media { margin: var(--space-6) 0 0; }
.blog-media img {
    display: block;
    width: 100%;
    height: auto;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    background: var(--color-surface);
    box-shadow: 0 4px 12px rgba(15, 23, 42, 0.08);
}

/* ── Placeholders (image / video) ── */
.image-placeholder {
    aspect-ratio: 1200 / 630;
    border: 1.5px dashed var(--color-border);
    border-radius: var(--radius-lg);
    background: var(--color-muted);
    color: var(--color-text-muted);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
    padding: var(--space-6);
    text-align: center;
    font-size: var(--text-sm);
    line-height: 1.6;
}

.image-placeholder svg { width: 32px; height: 32px; color: var(--color-text-faint); flex-shrink: 0; }

.image-placeholder span { max-width: 46ch; }

.video-placeholder {
    aspect-ratio: 16 / 9;
    border: 1.5px dashed var(--color-border);
    border-radius: var(--radius-lg);
    background: var(--color-muted);
    color: var(--color-text-muted);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
    padding: var(--space-6);
    text-align: center;
    font-size: var(--text-sm);
}

.video-play {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-full);
    background: var(--color-primary-subtle);
    color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.video-play svg { width: 20px; height: 20px; margin-left: 2px; }

/* ── Comparison cards (replies page) ── */
.compare-card { display: flex; flex-direction: column; gap: var(--space-4); }

.compare-card .compare-header { display: flex; align-items: center; justify-content: space-between; gap: var(--space-3); }

.compare-card h3 { font-size: var(--text-body); font-weight: 700; }

.compare-block { border-top: 1px solid var(--color-border-light); padding-top: var(--space-3); }

.compare-label {
    font-size: var(--text-2xs);
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--color-text-faint);
    margin-bottom: var(--space-2);
}

.compare-block p { margin: 0; font-size: var(--text-sm); color: var(--color-text-secondary); line-height: 1.7; }

/* ── Pricing ── */
.pricing-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-4); width: 100%; }

.pricing-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    position: relative;
    transition: border-color var(--transition-normal);
}

.pricing-card:hover { border-color: var(--color-text-faint); }

.pricing-card.popular { border-color: var(--color-primary); box-shadow: var(--shadow-md); }

.pricing-badge {
    position: absolute;
    top: var(--space-3);
    right: var(--space-3);
    font-size: var(--text-2xs);
    font-weight: 700;
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
    white-space: nowrap;
}

.pricing-badge.popular-badge { background: var(--color-primary); color: var(--color-on-primary); }
.pricing-badge.pro-badge { background: var(--color-text); color: var(--color-surface); }

.pricing-tier-name { font-family: var(--font-display); font-size: var(--text-h3); font-weight: 700; color: var(--color-text); margin: 0; }

.pricing-price { display: flex; align-items: baseline; gap: var(--space-1); }

.pricing-amount { font-size: var(--text-display); font-weight: 800; line-height: 1; color: var(--color-text); }

.pricing-period { font-size: var(--text-sm); color: var(--color-text-muted); }

.pricing-credits-pill {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    background: var(--color-muted);
    border-radius: var(--radius-full);
    padding: var(--space-1) var(--space-3);
    font-size: var(--text-xs);
    font-weight: 500;
    color: var(--color-text-secondary);
    width: fit-content;
}

.pricing-description { font-size: var(--text-sm); color: var(--color-text-secondary); line-height: 1.5; margin: 0; }

.pricing-features-list { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: var(--space-2); }

.pricing-features-list li {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
}

.pricing-features-list li i { flex-shrink: 0; }

.pricing-features-list .check-icon { color: var(--color-success); width: 16px; height: 16px; flex-shrink: 0; }
.pricing-features-list .minus-icon { color: var(--color-text-faint); width: 16px; height: 16px; flex-shrink: 0; }

.pricing-cta {
    width: 100%;
    margin-top: auto;
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-md);
    font-family: var(--font-sans);
    font-size: var(--text-sm);
    font-weight: 600;
    cursor: pointer;
    transition: background var(--transition-fast), border-color var(--transition-fast);
    text-align: center;
    box-sizing: border-box;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.pricing-cta-primary { background: var(--color-primary); color: var(--color-on-primary); border: 1px solid var(--color-primary); }
.pricing-cta-primary:hover { background: var(--color-primary-hover); border-color: var(--color-primary-hover); }
.pricing-cta-secondary { background: var(--color-muted); color: var(--color-text); border: 1px solid var(--color-border); }
.pricing-cta-secondary:hover { background: var(--color-border); }
.pricing-cta-outline { background: transparent; color: var(--color-text-secondary); border: 1px solid var(--color-border); }
.pricing-cta-outline:hover { background: var(--color-muted); border-color: var(--color-text-faint); }

/* ── Warning list (common mistakes) ── */
.warn-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: var(--space-3); }

.warn-list li {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-left: 3px solid var(--color-warning);
    border-radius: var(--radius-md);
    padding: var(--space-4) var(--space-5);
}

.warn-list li svg { flex-shrink: 0; margin-top: 2px; color: var(--color-warning); width: 18px; height: 18px; }

.warn-list li p { margin: 0; font-size: var(--text-sm); color: var(--color-text-secondary); line-height: 1.6; }

.warn-list li strong { color: var(--color-text); }

/* ── Related reading cards ── */
.link-card {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    text-decoration: none;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: var(--space-5);
    transition: border-color var(--transition-normal), box-shadow var(--transition-normal), transform var(--transition-normal);
}

.link-card:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.link-card .link-card-title {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-family: var(--font-display);
    font-weight: 600;
    font-size: var(--text-body);
    color: var(--color-text);
}

.link-card .link-card-title svg { color: var(--color-primary); width: 16px; height: 16px; flex-shrink: 0; }

.link-card p { margin: 0; font-size: var(--text-sm); color: var(--color-text-muted); line-height: 1.6; }

/* ── CTA banner ── */
.cta-banner {
    background: var(--color-primary-subtle);
    border: 1px solid rgba(29, 106, 229, 0.18);
    border-radius: var(--radius-xl);
    padding: var(--space-12) var(--space-6);
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-4);
}

.cta-banner h2 { font-family: var(--font-display); font-size: var(--text-h2); font-weight: 700; letter-spacing: -0.01em; }

.cta-banner p { color: var(--color-text-secondary); max-width: 52ch; margin: 0; }

/* ── Footer ── */
.site-footer {
    border-top: 1px solid var(--color-border-light);
    background: var(--color-surface);
    margin-top: var(--space-12);
}

.footer-grid {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: var(--space-8);
    padding: var(--space-10) 0;
}

.footer-brand { max-width: 380px; }

.footer-tagline {
    margin: var(--space-3) 0 0;
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    line-height: 1.7;
}

.footer-links { display: flex; flex-direction: column; align-items: flex-start; gap: var(--space-3); }

.footer-links a {
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.footer-links a:hover { color: var(--color-primary); }

.footer-bottom {
    border-top: 1px solid var(--color-border-light);
    padding: var(--space-4) 0;
    font-size: var(--text-sm);
    color: var(--color-text-muted);
}

/* ── Responsive ── */
@media (max-width: 1024px) {
    .card-grid--4 { grid-template-columns: repeat(2, 1fr); }
    .pricing-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .site-nav { display: none; }
    .mobile-menu { display: block; }

    .footer-grid { flex-direction: column; gap: var(--space-6); }

    .card-grid--3 { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
    .card-grid--2 { grid-template-columns: 1fr; }
    .pricing-grid { grid-template-columns: 1fr; }
    .card-grid--4 { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
    .blog-hero { padding-top: var(--space-8); }
    .step-card { padding: var(--space-5); }
    .step-card-head { flex-direction: column; align-items: flex-start; gap: var(--space-3); }
}

/* ── Reduced motion ── */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}