/*
Theme Name: Angleout Blog
Theme URI: https://angleout.io
Author: Angleout
Author URI: https://angleout.io
Description: Blog theme for angleout.io/blog — editorial light design. Use a static front page for your homepage; set the Posts page to "Blog" so this theme displays only on /blog/.
Version: 1.2.0
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: angleout-blog
*/
/* --------------------------------------------------------------------------
   Design Tokens - Light Theme
   -------------------------------------------------------------------------- */
:root {
    /* Colors - Cream Canvas + Azure Blue */
    --color-bg-primary: #faf9f7;
    --color-bg-secondary: #ffffff;
    --color-bg-elevated: #f5f4f1;
    --color-bg-card: #ffffff;
    --color-bg-warm: #f8f6f3;

    /* Blue Accent Palette */
    --color-accent-primary: #2563eb;
    --color-accent-secondary: #3b82f6;
    --color-accent-light: #60a5fa;
    --color-accent-glow: rgba(37, 99, 235, 0.12);
    --color-accent-soft: rgba(37, 99, 235, 0.08);
    --color-accent-muted: #dbeafe;

    /* Text Colors */
    --color-text-primary: #1a1a1a;
    --color-text-secondary: #4a4a4a;
    --color-text-muted: #737373;
    --color-text-subtle: #a3a3a3;

    /* Semantic Colors */
    --color-success: #059669;
    --color-success-muted: rgba(5, 150, 105, 0.1);
    --color-warning: #d97706;
    --color-error: #dc2626;

    /* Borders & Surfaces */
    --color-border: rgba(0, 0, 0, 0.08);
    --color-border-hover: rgba(0, 0, 0, 0.15);
    --color-border-subtle: rgba(0, 0, 0, 0.04);

    /* Typography - Editorial Stack */
    --font-display: 'Playfair Display', 'Georgia', serif;
    --font-body: 'Source Sans 3', 'Helvetica Neue', sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 2rem;
    --text-4xl: 2.5rem;
    --text-5xl: 3.25rem;
    --text-6xl: 4rem;

    /* Line Heights */
    --leading-tight: 1.2;
    --leading-snug: 1.4;
    --leading-normal: 1.6;
    --leading-relaxed: 1.75;

    /* Spacing */
    --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;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;
    --space-32: 8rem;

    /* Layout */
    --container-max: 1280px;
    --container-narrow: 720px;
    --container-article: 680px;

    /* Effects */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 20px;
    --radius-full: 9999px;

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.08);
    --shadow-xl: 0 24px 60px rgba(0, 0, 0, 0.1);
    --shadow-accent: 0 4px 20px rgba(37, 99, 235, 0.2);
    --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.04), 0 8px 24px rgba(0, 0, 0, 0.04);

    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms cubic-bezier(0.16, 1, 0.3, 1);
}

/* --------------------------------------------------------------------------
   Base Styles - Light theme (cream #faf9f7, blue accent)
   -------------------------------------------------------------------------- */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

body {
    font-family: var(--font-body);
    font-size: var(--text-base);
    line-height: var(--leading-normal);
    color: var(--color-text-primary);
    background-color: #faf9f7;
    background-color: var(--color-bg-primary);
    overflow-x: hidden;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

input, textarea {
    font-family: inherit;
}

ul {
    list-style: none;
}

::selection {
    background: var(--color-accent-muted);
    color: var(--color-accent-primary);
}

/* --------------------------------------------------------------------------
   Utilities
   -------------------------------------------------------------------------- */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-6);
}

.container-narrow {
    max-width: var(--container-narrow);
}

.container-article {
    max-width: var(--container-article);
}

/* Reveal animations */
.reveal-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
                transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-scale {
    opacity: 0;
    transform: scale(0.95);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
                transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-up.revealed,
.reveal-scale.revealed {
    opacity: 1;
    transform: translateY(0) scale(1);
}

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    font-size: var(--text-sm);
    font-weight: 600;
    letter-spacing: 0.01em;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    white-space: nowrap;
}

.btn-primary {
    background: var(--color-accent-primary);
    color: #ffffff;
    box-shadow: var(--shadow-accent);
}

.btn-primary:hover {
    background: var(--color-accent-secondary);
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(37, 99, 235, 0.3);
}

.btn-secondary {
    background: var(--color-bg-elevated);
    color: var(--color-text-primary);
    border: 1px solid var(--color-border);
}

.btn-secondary:hover {
    background: var(--color-bg-card);
    border-color: var(--color-border-hover);
    box-shadow: var(--shadow-md);
}

.btn-ghost {
    color: var(--color-text-primary);
    font-weight: 600;
}

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

.btn-outline {
    background: transparent;
    color: var(--color-accent-primary);
    border: 2px solid var(--color-accent-primary);
}

.btn-outline:hover {
    background: var(--color-accent-primary);
    color: #ffffff;
}

/* --------------------------------------------------------------------------
   Navigation
   -------------------------------------------------------------------------- */
.nav-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
    transition: background var(--transition-base), box-shadow var(--transition-base);
}

.nav-header.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: var(--space-4) var(--space-6);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-family: var(--font-display);
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--color-text-primary);
}

.logo-icon {
    color: var(--color-accent-primary);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-8);
}

.nav-link {
    position: relative;
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-text-primary);
    padding: var(--space-2) 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-accent-primary);
    transition: width var(--transition-base);
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-accent-primary);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

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

/* Mobile menu toggle */
.mobile-menu-toggle {
    display: none;
    width: 40px;
    height: 40px;
    align-items: center;
    justify-content: center;
}

.hamburger {
    position: relative;
    width: 20px;
    height: 2px;
    background: var(--color-text-primary);
    transition: background var(--transition-fast);
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--color-text-primary);
    transition: transform var(--transition-base);
}

.hamburger::before { top: -6px; }
.hamburger::after { bottom: -6px; }

.mobile-menu-toggle[aria-expanded="true"] .hamburger {
    background: transparent;
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger::before {
    transform: translateY(6px) rotate(45deg);
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger::after {
    transform: translateY(-6px) rotate(-45deg);
}

/* Mobile menu */
.mobile-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-bg-card);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-6);
    opacity: 0;
    transform: translateY(-10px);
    pointer-events: none;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-lg);
}

.mobile-menu.open {
    opacity: 1;
    transform: translateY(0);
    pointer-events: all;
}

.mobile-nav-links {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    margin-bottom: var(--space-6);
}

.mobile-nav-links a {
    font-size: var(--text-lg);
    font-weight: 500;
    color: var(--color-text-secondary);
    padding: var(--space-2) 0;
}

.mobile-nav-links a:hover {
    color: var(--color-accent-primary);
}

.mobile-nav-actions {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.mobile-nav-actions .btn {
    justify-content: center;
}

/* --------------------------------------------------------------------------
   Hero Section - Light Theme
   -------------------------------------------------------------------------- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: calc(var(--space-24) + 60px) 0 var(--space-16);
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.hero-gradient {
    position: absolute;
    top: -30%;
    right: -10%;
    width: 70%;
    height: 130%;
    background: radial-gradient(ellipse at center, var(--color-accent-glow) 0%, transparent 50%);
    opacity: 0.6;
}

.hero-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(var(--color-border-subtle) 1px, transparent 1px),
        linear-gradient(90deg, var(--color-border-subtle) 1px, transparent 1px);
    background-size: 80px 80px;
    mask-image: radial-gradient(ellipse at 70% 40%, black 0%, transparent 60%);
    -webkit-mask-image: radial-gradient(ellipse at 70% 40%, black 0%, transparent 60%);
}

/* Decorative elements */
.hero-bg::before {
    content: '';
    position: absolute;
    bottom: 10%;
    left: 5%;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.05) 0%, transparent 70%);
    border-radius: 50%;
}

.hero-content {
    position: relative;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-6);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
    align-items: center;
}

.hero-text {
    max-width: 580px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background: var(--color-success-muted);
    color: var(--color-success);
    font-size: var(--text-sm);
    font-weight: 600;
    border-radius: var(--radius-full);
    margin-bottom: var(--space-6);
}

.badge-dot {
    width: 6px;
    height: 6px;
    background: var(--color-success);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(var(--text-4xl), 5.5vw, var(--text-6xl));
    font-weight: 700;
    line-height: var(--leading-tight);
    letter-spacing: -0.02em;
    margin-bottom: var(--space-6);
    color: var(--color-text-primary);
}

.title-accent {
    background: linear-gradient(135deg, var(--color-accent-primary) 0%, var(--color-accent-light) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: var(--text-lg);
    color: var(--color-text-secondary);
    line-height: var(--leading-relaxed);
    margin-bottom: var(--space-8);
}

.hero-search {
    max-width: 460px;
}

.search-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.search-icon {
    position: absolute;
    left: var(--space-4);
    color: var(--color-text-muted);
    pointer-events: none;
}

.search-input {
    width: 100%;
    padding: var(--space-4) var(--space-4) var(--space-4) calc(var(--space-4) + 28px);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    color: var(--color-text-primary);
    font-size: var(--text-base);
    transition: all var(--transition-base);
    box-shadow: var(--shadow-sm);
}

.search-input::placeholder {
    color: var(--color-text-muted);
}

.search-input:focus {
    outline: none;
    border-color: var(--color-accent-primary);
    box-shadow: 0 0 0 4px var(--color-accent-glow);
}

.search-kbd {
    position: absolute;
    right: var(--space-4);
    display: flex;
    align-items: center;
    gap: 2px;
    padding: var(--space-1) var(--space-2);
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: var(--text-xs);
    color: var(--color-text-muted);
    pointer-events: none;
}

/* Hero Visual */
.hero-visual {
    position: relative;
    perspective: 1000px;
}

.visual-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transform: rotateY(-5deg) rotateX(5deg);
    box-shadow: var(--shadow-xl);
}

.card-header {
    display: flex;
    gap: var(--space-2);
    padding: var(--space-4);
    background: var(--color-bg-elevated);
    border-bottom: 1px solid var(--color-border);
}

.card-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.card-dot.green { background: #22c55e; }
.card-dot.yellow { background: #eab308; }
.card-dot.red { background: #ef4444; }

.card-content {
    padding: var(--space-6);
    background: var(--color-bg-card);
}

.metric-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-4);
}

.metric-label {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
}

.metric-value {
    font-family: var(--font-body);
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--color-text-primary);
}

.metric-value.up {
    color: var(--color-success);
}

.chart-placeholder {
    margin-bottom: var(--space-6);
    padding: var(--space-4) 0;
}

.mini-chart {
    width: 100%;
    height: auto;
}

.mini-chart path {
    stroke: url(#chartGradientLight);
}

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

.kw-bar {
    height: 28px;
    background: linear-gradient(90deg, var(--color-accent-primary) 0%, var(--color-accent-light) 100%);
    border-radius: var(--radius-sm);
    width: var(--width);
    display: flex;
    align-items: center;
    padding-left: var(--space-3);
}

.kw-bar span {
    font-size: var(--text-xs);
    font-weight: 600;
    color: #ffffff;
}

/* Floating tags */
.floating-tag {
    position: absolute;
    padding: var(--space-2) var(--space-4);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-text-secondary);
    white-space: nowrap;
    animation: float 6s ease-in-out infinite;
    box-shadow: var(--shadow-md);
}

.tag-1 {
    top: 10%;
    right: -20px;
    animation-delay: 0s;
}

.tag-2 {
    bottom: 30%;
    left: -40px;
    animation-delay: -2s;
}

.tag-3 {
    bottom: 10%;
    right: 10%;
    animation-delay: -4s;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

/* --------------------------------------------------------------------------
   Categories
   -------------------------------------------------------------------------- */
.categories {
    padding: var(--space-8) 0;
    background: var(--color-bg-card);
    border-bottom: 1px solid var(--color-border);
}

.categories-scroll {
    display: flex;
    gap: var(--space-3);
    overflow-x: auto;
    padding-bottom: var(--space-2);
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.categories-scroll::-webkit-scrollbar {
    display: none;
}

.category-btn {
    padding: var(--space-2) var(--space-5);
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-text-secondary);
    background: transparent;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    white-space: nowrap;
    transition: all var(--transition-base);
}

.category-btn:hover {
    color: var(--color-accent-primary);
    border-color: var(--color-accent-primary);
    background: var(--color-accent-soft);
}

.category-btn.active {
    color: #ffffff;
    background: var(--color-accent-primary);
    border-color: var(--color-accent-primary);
}

/* --------------------------------------------------------------------------
   Featured Post
   -------------------------------------------------------------------------- */
.featured {
    padding: var(--space-16) 0;
    background: var(--color-bg-primary);
}

.featured-post {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: var(--space-12);
    align-items: center;
    padding: var(--space-8);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-card);
}

.featured-image {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.image-placeholder {
    aspect-ratio: 4/3;
    background: var(--color-bg-elevated);
}

.image-placeholder svg {
    width: 100%;
    height: 100%;
}

.featured-badge {
    position: absolute;
    top: var(--space-4);
    left: var(--space-4);
    padding: var(--space-1) var(--space-3);
    background: var(--color-accent-primary);
    color: #ffffff;
    font-size: var(--text-xs);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: var(--radius-sm);
}

.featured-content {
    padding: var(--space-4) 0;
}

.post-meta {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    margin-bottom: var(--space-4);
}

.category-tag {
    padding: var(--space-1) var(--space-3);
    background: var(--color-accent-muted);
    color: var(--color-accent-primary);
    font-size: var(--text-xs);
    font-weight: 600;
    border-radius: var(--radius-sm);
}

.read-time {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
}

.featured-title {
    font-family: var(--font-display);
    font-size: var(--text-3xl);
    font-weight: 700;
    line-height: var(--leading-snug);
    margin-bottom: var(--space-4);
    color: var(--color-text-primary);
}

.featured-title a {
    transition: color var(--transition-fast);
}

.featured-title a:hover {
    color: var(--color-accent-primary);
}

.featured-excerpt {
    font-size: var(--text-base);
    color: var(--color-text-secondary);
    line-height: var(--leading-relaxed);
    margin-bottom: var(--space-6);
}

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

.author-avatar {
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, var(--color-accent-primary), var(--color-accent-light));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-sm);
    font-weight: 700;
    color: #ffffff;
}

.author-info {
    display: flex;
    flex-direction: column;
}

.author-name {
    font-weight: 600;
    color: var(--color-text-primary);
}

.post-date {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
}

/* --------------------------------------------------------------------------
   Blog Grid
   -------------------------------------------------------------------------- */
.blog-grid-section {
    padding: var(--space-16) 0;
    background: var(--color-bg-warm);
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-10);
}

.section-title {
    font-family: var(--font-display);
    font-size: var(--text-2xl);
    font-weight: 700;
    color: var(--color-text-primary);
}

.view-toggle {
    display: flex;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-1);
}

.toggle-btn {
    padding: var(--space-2);
    color: var(--color-text-muted);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.toggle-btn:hover {
    color: var(--color-text-secondary);
}

.toggle-btn.active {
    background: var(--color-accent-soft);
    color: var(--color-accent-primary);
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-8);
}

.blog-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-sm);
}

.blog-card:hover {
    transform: translateY(-4px);
    border-color: var(--color-accent-primary);
    box-shadow: var(--shadow-lg);
}

.card-image-link {
    display: block;
}

.card-image {
    aspect-ratio: 16/10;
    overflow: hidden;
}

.card-image .image-placeholder {
    width: 100%;
    height: 100%;
    transition: transform var(--transition-slow);
}

.blog-card:hover .card-image .image-placeholder {
    transform: scale(1.05);
}

/* Light theme gradient placeholders */
.gradient-1 { background: linear-gradient(135deg, #3b82f6 0%, #60a5fa 100%); }
.gradient-2 { background: linear-gradient(135deg, #8b5cf6 0%, #a78bfa 100%); }
.gradient-3 { background: linear-gradient(135deg, #10b981 0%, #34d399 100%); }
.gradient-4 { background: linear-gradient(135deg, #f59e0b 0%, #fbbf24 100%); }
.gradient-5 { background: linear-gradient(135deg, #ec4899 0%, #f472b6 100%); }
.gradient-6 { background: linear-gradient(135deg, #06b6d4 0%, #22d3ee 100%); }

.card-body {
    padding: var(--space-5);
}

.card-title {
    font-family: var(--font-display);
    font-size: var(--text-lg);
    font-weight: 600;
    line-height: var(--leading-snug);
    margin-bottom: var(--space-3);
    color: var(--color-text-primary);
}

.card-title a:hover {
    color: var(--color-accent-primary);
}

.card-excerpt {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    line-height: var(--leading-normal);
    margin-bottom: var(--space-4);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--space-4);
    border-top: 1px solid var(--color-border);
}

.author-mini {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.author-mini .avatar {
    width: 28px;
    height: 28px;
    background: var(--color-accent-muted);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-xs);
    font-weight: 600;
    color: var(--color-accent-primary);
}

.author-mini .name {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
}

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

.load-more {
    display: flex;
    justify-content: center;
    margin-top: var(--space-12);
}

/* --------------------------------------------------------------------------
   Newsletter
   -------------------------------------------------------------------------- */
.newsletter {
    padding: var(--space-16) 0;
    background: var(--color-bg-primary);
}

.newsletter-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-12);
    align-items: center;
    padding: var(--space-12);
    background: linear-gradient(135deg, var(--color-bg-card) 0%, var(--color-bg-warm) 100%);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-card);
}

.newsletter-card::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 60%;
    height: 200%;
    background: radial-gradient(ellipse at center, var(--color-accent-glow) 0%, transparent 60%);
    opacity: 0.4;
    pointer-events: none;
}

.newsletter-content {
    position: relative;
}

.newsletter-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-6);
}

.newsletter-title {
    font-family: var(--font-display);
    font-size: var(--text-3xl);
    font-weight: 700;
    margin-bottom: var(--space-4);
    color: var(--color-text-primary);
}

.newsletter-text {
    font-size: var(--text-base);
    color: var(--color-text-secondary);
    line-height: var(--leading-relaxed);
    margin-bottom: var(--space-8);
}

.newsletter-form {
    max-width: 420px;
}

.form-group {
    display: flex;
    gap: var(--space-3);
}

.email-input {
    flex: 1;
    padding: var(--space-3) var(--space-4);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
    font-size: var(--text-base);
}

.email-input:focus {
    outline: none;
    border-color: var(--color-accent-primary);
    box-shadow: 0 0 0 3px var(--color-accent-glow);
}

.form-note {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    margin-top: var(--space-3);
}

.newsletter-visual {
    position: relative;
    display: flex;
    justify-content: center;
}

.visual-stack {
    position: relative;
    width: 280px;
}

.stack-card {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-5);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-4);
    transform-origin: center;
    transition: transform var(--transition-base);
    box-shadow: var(--shadow-sm);
}

.stack-card:hover {
    transform: translateX(8px);
    box-shadow: var(--shadow-md);
}

.card-1 { transform: translateX(0); }
.card-2 { transform: translateX(20px); }
.card-3 { transform: translateX(40px); }

.card-icon {
    font-size: var(--text-xl);
}

.card-text {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-text-primary);
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.footer {
    padding: var(--space-16) 0 var(--space-8);
    background: var(--color-bg-card);
    border-top: 1px solid var(--color-border);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 2fr;
    gap: var(--space-16);
    margin-bottom: var(--space-12);
}

.footer-brand {
    max-width: 300px;
}

.footer-brand .logo {
    margin-bottom: var(--space-4);
}

.brand-tagline {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-6);
}

.social-links {
    display: flex;
    gap: var(--space-4);
}

.social-links a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-elevated);
    border-radius: var(--radius-md);
    color: var(--color-text-secondary);
    transition: all var(--transition-fast);
}

.social-links a:hover {
    background: var(--color-accent-primary);
    color: #ffffff;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-8);
}

.link-group h4 {
    font-size: var(--text-sm);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-text-muted);
    margin-bottom: var(--space-4);
}

.link-group ul {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.link-group a {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
}

.link-group a:hover {
    color: var(--color-accent-primary);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--space-8);
    border-top: 1px solid var(--color-border);
}

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

.legal-links {
    display: flex;
    gap: var(--space-6);
}

.legal-links a {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
}

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

/* --------------------------------------------------------------------------
   Responsive Design
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: var(--space-12);
    }

    .hero-visual {
        display: none;
    }

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

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

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

    .newsletter-visual {
        display: none;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--space-10);
    }

    .footer-links {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    :root {
        --text-5xl: 2.5rem;
        --text-6xl: 3rem;
    }

    .nav-links,
    .nav-actions {
        display: none;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .mobile-menu {
        display: block;
    }

    .hero {
        min-height: auto;
        padding: calc(var(--space-20) + 60px) 0 var(--space-12);
    }

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

    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-4);
    }

    .footer-links {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-bottom {
        flex-direction: column;
        gap: var(--space-4);
        text-align: center;
    }

    .legal-links {
        flex-wrap: wrap;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--space-4);
    }

    .featured-post {
        padding: var(--space-5);
    }

    .newsletter-card {
        padding: var(--space-6);
    }

    .form-group {
        flex-direction: column;
    }

    .form-group .btn {
        width: 100%;
        justify-content: center;
    }

    .footer-links {
        grid-template-columns: 1fr;
    }
}

/* --------------------------------------------------------------------------
   Animations
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: no-preference) {
    .hero-title,
    .hero-subtitle,
    .hero-badge {
        animation: fadeInUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
        opacity: 0;
    }

    .hero-badge { animation-delay: 0.1s; }
    .hero-title { animation-delay: 0.2s; }
    .hero-subtitle { animation-delay: 0.3s; }
    .hero-search { animation-delay: 0.4s; }

    @keyframes fadeInUp {
        from {
            opacity: 0;
            transform: translateY(20px);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }
}

/* Focus styles for accessibility */
:focus-visible {
    outline: 2px solid var(--color-accent-primary);
    outline-offset: 2px;
}

button:focus-visible,
a:focus-visible,
input:focus-visible {
    outline: 2px solid var(--color-accent-primary);
    outline-offset: 2px;
}

/* --------------------------------------------------------------------------
   Single Post (article layout) - Light theme
   -------------------------------------------------------------------------- */
.single-article {
    padding: calc(var(--space-24) + 60px) 0 var(--space-16);
    background: var(--color-bg-primary);
}

.single-article .container-narrow {
    max-width: var(--container-narrow);
    margin: 0 auto;
    padding: 0 var(--space-6);
}

.article-header-single {
    margin-bottom: var(--space-10);
}

.article-header-single .category-tag {
    display: inline-block;
    margin-bottom: var(--space-4);
}

.article-title-single {
    font-family: var(--font-display);
    font-size: clamp(var(--text-2xl), 4vw, var(--text-4xl));
    font-weight: 700;
    line-height: var(--leading-snug);
    margin-bottom: var(--space-4);
    color: var(--color-text-primary);
}

.article-meta-single {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    flex-wrap: wrap;
}

.article-meta-single .author-avatar {
    width: 40px;
    height: 40px;
}

.article-content {
    font-size: var(--text-base);
    line-height: var(--leading-relaxed);
    color: var(--color-text-secondary);
}

.article-content h2 {
    font-family: var(--font-display);
    font-size: var(--text-2xl);
    font-weight: 700;
    color: var(--color-text-primary);
    margin: var(--space-10) 0 var(--space-4);
}

.article-content h3 {
    font-family: var(--font-display);
    font-size: var(--text-xl);
    font-weight: 600;
    color: var(--color-text-primary);
    margin: var(--space-8) 0 var(--space-3);
}

.article-content p { margin-bottom: var(--space-4); }

.article-content ul,
.article-content ol {
    margin-bottom: var(--space-4);
    padding-left: var(--space-8);
}

.article-content ul { list-style: disc; }

.article-content ol { list-style: decimal; }

.article-content img {
    border-radius: var(--radius-lg);
    margin: var(--space-6) 0;
}

.article-content a {
    color: var(--color-accent-primary);
}

.article-content a:hover {
    text-decoration: underline;
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    gap: var(--space-2);
    margin-top: var(--space-12);
    flex-wrap: wrap;
}

.pagination a,
.pagination span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 var(--space-3);
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-text-secondary);
    transition: all var(--transition-fast);
}

.pagination a:hover {
    background: var(--color-bg-card);
    color: var(--color-text-primary);
    border-color: var(--color-border-hover);
}

.pagination .current {
    background: var(--color-accent-primary);
    color: #ffffff;
    border-color: var(--color-accent-primary);
}