/* ============================================
   Hypho Blog — Custom Brand Styles
   PaperMod Enhancement Layer
   ============================================ */

/* --- Brand Color Palette ---
   Primary:   #6366f1 (Indigo) — distinctive, tech, memorable
   Secondary: #0891b2 (Cyan) — complements indigo
   Accent:    #f59f0b (Amber) — warm contrast for CTAs/highlights
   Background: #fafafa (near-white)
   Text:      #1e1e2e (near-black, slightly warm)
   Code BG:   #1e1e2e (dark, matches popular themes)
   ------------------------------------------- */

/* Reading Progress Bar */
.reading-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 3px;
    background: linear-gradient(90deg, #6366f1, #0891b2);
    z-index: 9999;
    transition: width 0.1s ease-out;
}

/* ============================================
   HEADER & NAV
   ============================================ */

.top-nav {
    border-bottom: 1px solid var(--border);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.top-nav a {
    transition: color 0.2s ease;
}

.top-nav a:hover {
    color: #6366f1 !important;
}

/* ============================================
   HOMEPAGE — ENTRY CARDS
   ============================================ */

.post-entry {
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 16px;
    background: var(--entry);
    transition: all 0.25s ease;
    position: relative;
    overflow: hidden;
}

.post-entry::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(180deg, #6366f1, #0891b2);
    opacity: 0;
    transition: opacity 0.25s ease;
}

.post-entry:hover {
    border-color: #6366f1;
    box-shadow: 0 4px 20px rgba(99, 102, 241, 0.12);
    transform: translateY(-2px);
}

.post-entry:hover::before {
    opacity: 1;
}

.post-entry h2 {
    font-weight: 700;
    font-size: 1.2rem;
    color: var(--primary);
    margin-bottom: 8px;
    line-height: 1.4;
}

.post-entry .post-meta {
    color: #6366f1;
    font-size: 0.8rem;
    font-weight: 500;
    letter-spacing: 0.02em;
}

/* ============================================
   POST SINGLE — ARTICLE TYPOGRAPHY
   ============================================ */

.post-content {
    font-size: 1.05rem;
    line-height: 1.85;
    color: var(--content);
}

.post-content h1,
.post-content h2,
.post-content h3,
.post-content h4 {
    color: var(--primary);
    font-weight: 700;
    margin-top: 2em;
    margin-bottom: 0.75em;
    line-height: 1.3;
}

.post-content h2 {
    font-size: 1.5rem;
    padding-bottom: 0.4em;
    border-bottom: 2px solid var(--border);
}

.post-content h3 {
    font-size: 1.2rem;
}

.post-content p {
    margin-bottom: 1.2em;
}

.post-content a {
    color: #6366f1;
    text-decoration: underline;
    text-decoration-color: rgba(99, 102, 241, 0.3);
    text-underline-offset: 3px;
    transition: all 0.2s ease;
}

.post-content a:hover {
    color: #0891b2;
    text-decoration-color: rgba(8, 145, 178, 0.4);
}

/* Blockquotes */
.post-content blockquote {
    border-left: 4px solid #6366f1;
    margin: 1.5em 0;
    padding: 12px 20px;
    background: rgba(99, 102, 241, 0.05);
    border-radius: 0 8px 8px 0;
    color: var(--secondary);
    font-style: italic;
}

/* Tables */
.post-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5em 0;
    font-size: 0.95rem;
}

.post-content th {
    background: linear-gradient(135deg, #6366f1, #0891b2);
    color: white;
    padding: 10px 16px;
    text-align: left;
    font-weight: 600;
}

.post-content td,
.post-content tr {
    border: 1px solid var(--border);
    padding: 8px 16px;
}

.post-content tr:nth-child(even) {
    background: rgba(99, 102, 241, 0.03);
}

/* ============================================
   CODE BLOCKS — Tokyo Night Inspired
   ============================================ */

.post-content pre,
div.highlight pre {
    background: #1e1e2e !important;
    border-radius: 10px;
    border: 1px solid rgba(99, 102, 241, 0.2);
    padding: 20px;
    overflow-x: auto;
    margin: 1.5em 0;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
}

.post-content code {
    font-family: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;
    font-size: 0.875em;
}

.post-content :not(pre) > code {
    background: rgba(99, 102, 241, 0.1);
    color: #6366f1;
    padding: 2px 6px;
    border-radius: 4px;
    font-weight: 500;
}

[data-theme="dark"] .post-content :not(pre) > code {
    background: rgba(99, 102, 241, 0.2);
    color: #a5b4fc;
}

/* ============================================
   TABLE OF CONTENTS
   ============================================ */

.toc {
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 16px 20px;
    margin-bottom: 24px;
    background: var(--entry);
}

.toc details summary {
    font-weight: 700;
    cursor: pointer;
    color: #6366f1;
    font-size: 0.9rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.toc ul {
    list-style: none;
    padding-left: 0;
    margin-top: 12px;
}

.toc ul li {
    padding: 4px 0;
}

.toc ul li a {
    color: var(--secondary);
    font-size: 0.9rem;
    text-decoration: none;
    transition: color 0.2s;
}

.toc ul li a:hover {
    color: #6366f1;
}

/* ============================================
   HOME INFO HERO
   ============================================ */

.home-info {
    text-align: center;
    padding: 48px 24px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 32px;
}

.home-info h1 {
    font-size: 2.5rem !important;
    font-weight: 800;
    background: linear-gradient(135deg, #6366f1, #0891b2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 12px !important;
}

.home-info .home-content {
    color: var(--secondary);
    font-size: 1.1rem;
}

/* ============================================
   TAGS
   ============================================ */

.tag {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    background: rgba(99, 102, 241, 0.1);
    color: #6366f1;
    border: 1px solid rgba(99, 102, 241, 0.2);
    transition: all 0.2s ease;
    cursor: pointer;
}

.tag:hover {
    background: #6366f1;
    color: white;
    border-color: #6366f1;
}

/* ============================================
   FOOTER
   ============================================ */

.site-footer {
    border-top: 1px solid var(--border);
    padding: 24px;
    text-align: center;
    color: var(--secondary);
    font-size: 0.875rem;
}

/* ============================================
   DARK MODE ADJUSTMENTS
   ============================================ */

[data-theme="dark"] .post-entry:hover {
    box-shadow: 0 4px 20px rgba(99, 102, 241, 0.2);
}

[data-theme="dark"] .post-content blockquote {
    background: rgba(99, 102, 241, 0.08);
}

[data-theme="dark"] .post-content tr:nth-child(even) {
    background: rgba(99, 102, 241, 0.05);
}

/* ============================================
   HOMEPAGE — MAGAZINE GRID LAYOUT
   ============================================ */

.home-grid {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

/* HERO CARD — first post */
.hero-entry {
    display: grid;
    grid-template-columns: 1fr;
    border: 1px solid var(--border);
    border-radius: 16px;
    overflow: hidden;
    margin-bottom: 8px;
    background: var(--entry);
    position: relative;
    transition: all 0.3s ease;
}

.hero-entry:hover {
    border-color: #6366f1;
    box-shadow: 0 8px 32px rgba(99, 102, 241, 0.15);
    transform: translateY(-3px);
}

.hero-entry .hero-content {
    padding: 32px 36px;
}

.hero-label {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: #6366f1;
    background: rgba(99, 102, 241, 0.1);
    padding: 4px 10px;
    border-radius: 20px;
    margin-bottom: 14px;
}

.hero-title {
    font-size: 1.7rem !important;
    font-weight: 800;
    line-height: 1.3;
    margin-bottom: 16px !important;
}

.hero-title a {
    color: var(--primary);
    text-decoration: none;
    background: linear-gradient(135deg, var(--primary) 0%, #6366f1 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    transition: all 0.2s ease;
}

.hero-entry:hover .hero-title a {
    background: linear-gradient(135deg, #6366f1 0%, #0891b2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-entry .entry-content p {
    color: var(--secondary);
    font-size: 1rem;
    line-height: 1.7;
    margin-bottom: 20px;
}

.hero-entry .entry-footer {
    border-top: 1px solid var(--border);
    padding-top: 16px;
}

/* GRID CARDS — remaining posts */
.home-grid .post-entry {
    flex: 1;
    margin-bottom: 0;
}

/* 2-column grid for remaining posts on larger screens */
@media (min-width: 768px) {
    .home-grid {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    /* Hero spans full width */
    .hero-entry {
        grid-column: 1 / -1;
    }

    /* Remaining posts in 2-col grid */
    .home-grid > .post-entry:nth-child(n+2) {
        min-height: 180px;
    }
}

@media (min-width: 1024px) {
    .hero-content {
        max-width: 800px;
    }

    .hero-title {
        font-size: 2rem !important;
    }
}

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

@media (max-width: 768px) {
    .home-info h1 {
        font-size: 2rem !important;
    }

    .post-entry {
        padding: 16px;
    }

    .post-content h2 {
        font-size: 1.3rem;
    }

    .hero-entry .hero-content {
        padding: 20px;
    }

    .hero-title {
        font-size: 1.3rem !important;
    }
}