/* frontend/blog/blog.css */
/* Blog styles — matches the landing page section structure and app panel design */

/* ============================================
   NAV ACTIVE STATE
   ============================================ */

/* Blog pages need the same base styles as landing-page-view */
body {
    font-family: 'Poppins', sans-serif;
    line-height: 1.6;
    background: transparent;
    color: var(--text-primary);
    font-weight: var(--font-weight-normal);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    margin: 0;
    height: auto;
    overflow-y: auto;
    overflow-x: hidden;
    position: relative;
}

/* Animated background — same as landing page */
body::before {
    content: "";
    position: fixed;
    inset: -150%;
    z-index: -1;
    transform-origin: center center;
    background-image:
        var(--gradient-overlay),
        radial-gradient(ellipse at 15% 85%, rgba(160, 180, 235, 0.12) 0%, transparent 60%),
        radial-gradient(ellipse at 85% 15%, rgba(160, 180, 235, 0.12) 0%, transparent 60%);
    background-size: cover, 300px 300px, 300px 300px;
    background-blend-mode: overlay, overlay, overlay;
    animation: rotateBackground 240s linear infinite, pulseOpacity 30s ease-in-out infinite alternate;
    opacity: .45;
}

@keyframes rotateBackground {
    0% { transform: rotate(45deg) scale(2.0); }
    100% { transform: rotate(405deg) scale(2.0); }
}

@keyframes pulseOpacity {
    0% { opacity: .35; }
    100% { opacity: .55; }
}

@media (prefers-reduced-motion: reduce) {
    body::before {
        animation: none;
    }
}

/* Match landing-page header height (blog uses btn-sm in nav which is shorter) */
.landing-header {
    padding: 18px 40px;
}

.nav-links li a.active {
    color: var(--text-primary);
}

/* ============================================
   BLOG INDEX — HERO
   ============================================ */

.blog-hero {
    text-align: center;
    padding: 160px 20px 72px;
    max-width: 800px;
    margin: 0 auto;
}

.blog-hero h1 {
    font-size: clamp(2.2rem, 5vw, 3rem);
    font-weight: 700;
    margin: 0 0 20px;
    line-height: 1.15;
    letter-spacing: -0.02em;
    color: var(--text-primary);
}

.blog-hero h1 .text-gradient {
    background: linear-gradient(135deg, #4d74ff 0%, #7e9dff 50%, #3c4f9e 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    color: #4d74ff;
}

.blog-hero p {
    font-size: var(--font-size-base);
    color: var(--text-primary);
    line-height: 1.55;
    margin: 0 auto;
    max-width: 520px;
}

/* ============================================
   BLOG INDEX — CARD GRID
   ============================================ */

.blog-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    max-width: 960px;
    margin: 0 auto;
    padding: 0 20px 100px;
}

.blog-card {
    display: flex;
    flex-direction: column;
    background: var(--gradient-surface-content);
    border: 1px solid rgba(118, 148, 230, 0.38);
    border-radius: var(--border-radius);
    padding: 24px;
    box-shadow: var(--shadow-panel);
    transition: border-color 0.25s ease,
        transform 0.25s ease,
        box-shadow 0.25s ease;
    text-decoration: none;
    color: inherit;
    animation: fadeIn 0.4s ease-out forwards;
    opacity: 0;
}

.blog-card:nth-child(1) { animation-delay: 0s; }
.blog-card:nth-child(2) { animation-delay: 0.06s; }
.blog-card:nth-child(3) { animation-delay: 0.12s; }
.blog-card:nth-child(4) { animation-delay: 0.18s; }
.blog-card:nth-child(5) { animation-delay: 0.24s; }
.blog-card:nth-child(6) { animation-delay: 0.3s; }
.blog-card:nth-child(7) { animation-delay: 0.36s; }
.blog-card:nth-child(8) { animation-delay: 0.42s; }

.blog-card:hover {
    border-color: rgba(148, 178, 255, 0.65);
    transform: translateY(-3px);
    box-shadow: 0 28px 56px rgba(5, 8, 20, 0.65);
}

.blog-card-category {
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: 0.6px;
    color: var(--secondary-color);
    margin-bottom: var(--space-md);
}

.blog-card h2 {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
    margin: 0 0 var(--space-sm);
    line-height: 1.35;
}

.blog-card p {
    font-size: var(--font-size-base);
    color: var(--text-primary);
    line-height: 1.55;
    margin: 0 0 auto;
    padding-bottom: var(--space-lg);
}

.blog-card-meta {
    font-size: var(--font-size-xs);
    color: var(--text-primary);
    opacity: 0.5;
    padding-top: var(--space-sm);
}

/* ============================================
   BLOG ARTICLE — HEADER
   ============================================ */

.blog-article {
    /* No max-width — child elements self-constrain. main padding-top handled by _layout.css */
}

.blog-article-header {
    padding: 80px 20px 64px;
    max-width: 780px;
    margin: 0 auto;
}

.blog-article-category {
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: 0.6px;
    color: var(--secondary-color);
    margin-bottom: var(--space-lg);
}

.blog-article-header h1 {
    font-size: clamp(2rem, 4.5vw, 2.8rem);
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 var(--space-lg);
    line-height: 1.2;
    letter-spacing: -0.02em;
}

.blog-article-meta {
    font-size: var(--font-size-sm);
    color: var(--text-primary);
    opacity: 0.5;
}

/* ============================================
   BLOG ARTICLE — BODY SECTIONS
   Each h2 begins a new section that alternates
   between regular and dark backgrounds, matching
   the landing page's section rhythm.
   ============================================ */

.blog-article-body {
    counter-reset: blog-section;
}

/* Every h2 becomes the start of a visual section block */
.blog-article-body h2 {
    font-size: clamp(1.35rem, 3vw, 1.6rem);
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 16px;
    line-height: 1.25;
    letter-spacing: -0.02em;
    max-width: 780px;
    padding: 0 20px;
    margin-left: auto;
    margin-right: auto;
    padding-top: 72px;
}

.blog-article-body h2:first-child {
    padding-top: 0;
}

/* Sub-sections */
.blog-article-body h3 {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
    margin: 32px 0 12px;
    line-height: 1.3;
    max-width: 780px;
    padding: 0 20px;
    margin-left: auto;
    margin-right: auto;
}

/* Paragraphs — clean regular weight like landing sections */
.blog-article-body p {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-normal);
    line-height: 1.55;
    color: var(--text-primary);
    margin: 0 auto 20px;
    max-width: 780px;
    padding: 0 20px;
}

/* Lists */
.blog-article-body ul,
.blog-article-body ol {
    margin: 0 auto 28px;
    max-width: 780px;
    padding: 0 20px;
}

.blog-article-body ul {
    list-style: none;
}

.blog-article-body ul li {
    font-size: var(--font-size-base);
    line-height: 1.55;
    color: rgba(236, 236, 241, 0.78);
    margin-bottom: 16px;
    padding-left: 20px;
    position: relative;
}

.blog-article-body ul li strong {
    display: block;
    margin-bottom: 2px;
    color: rgba(236, 236, 241, 0.88);
}

.blog-article-body ul li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--text-primary);
    opacity: 0.4;
}

.blog-article-body ol {
    padding-left: 44px;
}

.blog-article-body ol li {
    font-size: var(--font-size-base);
    line-height: 1.55;
    color: rgba(236, 236, 241, 0.78);
    margin-bottom: 16px;
    padding-left: 6px;
}

.blog-article-body ol li strong {
    display: block;
    margin-bottom: 2px;
    color: rgba(236, 236, 241, 0.88);
}

.blog-article-body strong {
    color: var(--text-primary);
    font-weight: var(--font-weight-semibold);
}

.blog-article-body em {
    color: var(--text-secondary);
    font-style: italic;
}

/* ============================================
   CONTENT BLOCKS — panels that break up text
   ============================================ */

/* Blockquote — styled as other-message chat bubble */
.blog-article-body blockquote {
    display: block;
    margin: 24px auto;
    padding: 10px 15px;
    border-radius: 16px;
    border-bottom-left-radius: 4px;
    background: var(--gradient-bubble-other);
    border: 1px solid rgba(108, 140, 228, 0.25);
    box-shadow: 0 12px 24px rgba(9, 13, 32, 0.28);
    max-width: 520px;
    width: fit-content;
}

.blog-article-body blockquote p {
    margin: 0;
    padding: 0;
    font-size: var(--font-size-base);
    color: var(--text-primary);
    line-height: 1.55;
}

/* Text example — conversation preview panel with chat bubbles */
.text-example {
    margin: 24px auto 28px;
    padding: 20px 24px;
    background: var(--gradient-surface-content);
    border: 1px solid rgba(118, 148, 230, 0.38);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-panel);
    max-width: 780px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.text-example .label {
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-xs);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-primary);
    margin-bottom: 4px;
}

/* Chat bubbles inside text examples — reuses app's chat-message pattern */
.text-example .bubble {
    padding: 10px 15px;
    border-radius: 16px;
    width: fit-content;
    max-width: 85%;
    word-wrap: break-word;
    line-height: 1.5;
    font-size: var(--font-size-base);
}

.text-example .bubble-user {
    background: var(--gradient-bubble-user);
    color: var(--text-on-accent);
    border: 1px solid rgba(108, 140, 228, 0.35);
    border-bottom-right-radius: 4px;
    align-self: flex-end;
    box-shadow: 0 4px 12px rgba(9, 13, 32, 0.2);
}

.text-example .bubble-other {
    background: var(--gradient-bubble-other);
    color: var(--text-primary);
    border: 1px solid rgba(108, 140, 228, 0.25);
    border-bottom-left-radius: 4px;
    align-self: flex-start;
    box-shadow: 0 4px 12px rgba(9, 13, 32, 0.2);
}

.text-example .bubble .speaker {
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    display: block;
    margin-bottom: 3px;
    opacity: 0.7;
}

/* Tip box — matches analysis-card[data-section="good-signs"] */
.blog-tip {
    background: var(--gradient-surface-content);
    border: 1px solid rgba(118, 148, 230, 0.38);
    border-left: 5px solid var(--success-color);
    border-radius: var(--border-radius);
    padding: 20px 24px;
    margin: 28px auto;
    box-shadow: var(--shadow-panel);
    max-width: 780px;
}

.blog-tip p {
    margin: 0;
    padding: 0;
    font-size: var(--font-size-base);
    line-height: 1.55;
    color: var(--text-primary);
}

.blog-tip strong {
    display: block;
    font-weight: 500;
    font-size: var(--font-size-lg);
    color: var(--text-primary);
    margin-bottom: var(--space-md);
}

/* Warning box — matches analysis-card[data-section="warning-signs"] */
.blog-warning {
    background: var(--gradient-surface-content);
    border: 1px solid rgba(118, 148, 230, 0.38);
    border-left: 5px solid var(--danger-color);
    border-radius: var(--border-radius);
    padding: 20px 24px;
    margin: 28px auto;
    box-shadow: var(--shadow-panel);
    max-width: 780px;
}

.blog-warning p {
    margin: 0;
    padding: 0;
    font-size: var(--font-size-base);
    line-height: 1.55;
    color: var(--text-primary);
}

.blog-warning strong {
    display: block;
    font-weight: 500;
    font-size: var(--font-size-lg);
    color: var(--text-primary);
    margin-bottom: var(--space-md);
}

/* ============================================
   CTA SECTION — reuses final-cta-section from
   landing page (centered title + button only)
   ============================================ */

/* ============================================
   RELATED ARTICLES — panel cards
   ============================================ */

.blog-related {
    padding: 64px 20px 80px;
    max-width: 780px;
    margin: 0 auto;
}

.blog-related h3 {
    font-size: 1.1rem;
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
    margin: 0 0 16px;
}

.blog-related-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.blog-related-list a {
    display: block;
    padding: 16px 20px;
    background: var(--gradient-surface-content);
    border: 1px solid rgba(118, 148, 230, 0.38);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-panel);
    color: var(--text-primary);
    text-decoration: none;
    font-weight: var(--font-weight-medium);
    font-size: var(--font-size-base);
    line-height: 1.5;
    transition: border-color 0.25s ease,
        transform 0.25s ease,
        box-shadow 0.25s ease;
}

.blog-related-list a:hover {
    border-color: rgba(148, 178, 255, 0.65);
    transform: translateY(-2px);
    box-shadow: 0 28px 56px rgba(5, 8, 20, 0.65);
}

/* ============================================
   SUGGESTION CARD EXAMPLES — 2-col grid of
   actual .suggestion-card components from the app
   ============================================ */

.blog-suggestions {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    max-width: 780px;
    margin: 24px auto 28px;
    padding: 0 20px;
}

.blog-suggestions.single {
    grid-template-columns: 1fr;
    max-width: 520px;
}

/* Override app defaults for static blog context */
.blog-suggestions .suggestion-card {
    min-height: auto;
    cursor: default;
    animation: none;
    opacity: 1;
}

.blog-suggestions .suggestion-card:hover:not(.blurred) {
    transform: none;
    border-color: rgba(118, 148, 230, 0.38) !important;
    box-shadow: var(--shadow-panel) !important;
}

.blog-suggestions .suggestion-card p.message-text {
    font-size: 0.92em;
}

.blog-suggestions .suggestion-card .suggestion-explanation {
    margin-bottom: 0;
}

/* ============================================
   CONVERSATION PANELS — chat bubbles from the
   app's conversation panel
   ============================================ */

/* Blog conversation uses the real .conversation-preview-panel
   from the landing page + .chat-demo layout from _features.css.
   Just constrains width for blog context. */
.blog-conversation {
    max-width: 520px;
    margin: 24px auto 28px;
}

/* Ensure chat-demo gap inside blog context */
.blog-conversation .chat-demo {
    gap: 12px;
}

.blog-conversation .conversation-label {
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-xs);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-primary);
    margin-bottom: 2px;
}

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 700px) {
    .blog-hero {
        padding: 110px 20px 48px;
    }

    .blog-hero h1 {
        font-size: 1.8rem;
    }

    .blog-grid {
        grid-template-columns: 1fr;
        gap: 14px;
    }

    .blog-card {
        padding: 22px 20px;
    }

    .blog-article-header {
        padding: 48px 18px 40px;
    }

    .blog-article-header h1 {
        font-size: 1.7rem;
    }

    .blog-article-body h2 {
        font-size: 1.3rem;
        padding-top: 56px;
        padding-left: 18px;
        padding-right: 18px;
    }

    .blog-article-body h3 {
        padding-left: 18px;
        padding-right: 18px;
    }

    .blog-article-body p {
        padding-left: 18px;
        padding-right: 18px;
    }

    .blog-article-body ul,
    .blog-article-body ol {
        padding-left: 18px;
        padding-right: 18px;
    }

    .blog-article-body ol {
        padding-left: 36px;
    }

    .blog-article-body blockquote,
    .text-example,
    .blog-tip,
    .blog-warning {
        margin-left: 18px;
        margin-right: 18px;
    }

    .blog-suggestions {
        grid-template-columns: 1fr;
        padding: 0 18px;
    }

    .blog-conversation {
        margin-left: 18px;
        margin-right: 18px;
    }

    .blog-article + .final-cta-section {
        padding: 50px 20px;
    }

    .blog-related {
        padding: 48px 18px 60px;
    }
}