/* ================================
   TranzyNote Blog Styles - Light Theme
   Matches main site design language
   ================================ */

/* Import Google Fonts - Same as main site */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Space+Grotesk:wght@500;600;700&display=swap');

/* ===== CSS RESET & BASE ===== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Brand Colors - EXACT same as main site */
    --primary-600: #6366F1;
    --primary-700: #5558E3;
    --primary-800: #4F46E5;
    --secondary-600: #8B5CF6;
    --secondary-700: #7C3AED;

    /* Neutral Colors - EXACT same as main site */
    --gray-50: #F9FAFB;
    --gray-100: #F3F4F6;
    --gray-200: #E5E7EB;
    --gray-300: #D1D5DB;
    --gray-400: #9CA3AF;
    --gray-500: #6B7280;
    --gray-600: #4B5563;
    --gray-700: #374151;
    --gray-800: #1F2937;
    --gray-900: #111827;

    /* Semantic Colors */
    --success: #10B981;
    --warning: #F59E0B;
    --error: #EF4444;

    /* Gradients - EXACT same as main site */
    --gradient-primary: linear-gradient(135deg, var(--primary-600) 0%, var(--secondary-600) 100%);
    --gradient-hero: linear-gradient(180deg, rgba(99, 102, 241, 0.05) 0%, rgba(139, 92, 246, 0.05) 100%);
    --gradient-cta: linear-gradient(135deg, #6366F1 0%, #8B5CF6 50%, #A855F7 100%);

    /* Shadows - EXACT same as main site */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.3);

    /* Typography - EXACT same as main site */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-display: 'Space Grotesk', 'Inter', sans-serif;

    /* Animation - EXACT same as main site */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-spring: cubic-bezier(0.34, 1.56, 0.64, 1);

    /* Layout */
    --container-max: 1280px;
    --border-radius-sm: 0.375rem;
    --border-radius-md: 0.5rem;
    --border-radius-lg: 0.75rem;
    --border-radius-xl: 1rem;
    --border-radius-2xl: 1.5rem;

    /* Blog-specific layout */
    --blog-max-width: 800px;
    --blog-padding: 2rem;
    --blog-gap: 1.5rem;
}

/* ===== GLOBAL STYLES - LIGHT THEME ===== */
html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    color: var(--gray-800);                 /* DARK TEXT ON LIGHT BACKGROUND */
    background-color: #FFFFFF;              /* WHITE BACKGROUND */
    line-height: 1.7;
    margin: 0;
    padding: 0;
    min-height: 100vh;
}

/* ===== NAVBAR - EXACT SAME AS MAIN SITE ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.8);   /* WHITE WITH BLUR */
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    transition: all var(--transition-base);
}

.navbar .container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 2rem;
}

.nav-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    transition: transform var(--transition-fast);
}

.logo:hover {
    transform: scale(1.02);
}

.logo img {
    width: 40px;
    height: 40px;
    border-radius: 8px;
}

.logo-text {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--gray-900);                /* DARK LOGO TEXT */
    letter-spacing: -0.02em;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    font-weight: 500;
    color: var(--gray-600);                /* DARK NAV LINKS */
    text-decoration: none;
    padding: 0.5rem 0;
    border-bottom: 2px solid transparent;
    transition: all var(--transition-fast);
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-600);             /* PURPLE ON HOVER */
    border-bottom-color: var(--primary-600);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-600);
    transition: width var(--transition-fast);
}

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

/* ===== MAIN CONTAINER ===== */
.blog-container {
    max-width: var(--blog-max-width);
    margin: 0 auto;
    padding: calc(80px + 2rem) var(--blog-padding) var(--blog-padding);
    min-height: calc(100vh - 200px);
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.3;
    margin: 0 0 1rem 0;
    color: var(--gray-900);                /* DARK HEADINGS */
}

h1 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

h2 {
    font-size: 2rem;
    margin-top: 2.5rem;
    margin-bottom: 1.25rem;
    border-bottom: 2px solid var(--gray-200);  /* LIGHT BORDER */
    padding-bottom: 0.5rem;
}

h3 {
    font-size: 1.5rem;
    margin-top: 2rem;
    margin-bottom: 1rem;
    color: var(--primary-600);
}

h4 {
    font-size: 1.25rem;
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
}

p {
    margin-bottom: 1.25rem;
    color: var(--gray-700);                /* SLIGHTLY LIGHTER TEXT */
    font-size: 1.1rem;
}

.blog-intro {
    font-size: 1.2rem;
    color: var(--gray-600);
    margin-bottom: 2rem;
    line-height: 1.6;
}

/* ===== LINKS ===== */
a {
    color: var(--primary-600);
    text-decoration: none;
    transition: all var(--transition-fast);
}

a:hover {
    color: var(--primary-700);
    text-decoration: underline;
}

/* ===== LISTS ===== */
ul, ol {
    margin-bottom: 1.5rem;
    padding-left: 1.5rem;
    color: var(--gray-700);
}

li {
    margin-bottom: 0.5rem;
    font-size: 1.05rem;
}

li::marker {
    color: var(--primary-600);
}

/* ===== BLOG CARDS ===== */
.blog-card {
    background-color: #FFFFFF;               /* WHITE CARDS */
    border: 1px solid var(--gray-200);      /* LIGHT BORDER */
    border-radius: var(--border-radius-xl);
    padding: 2rem;
    margin-bottom: 2rem;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-md);
}

.blog-card:hover {
    border-color: var(--primary-200);
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.blog-card h3 {
    margin-top: 0;
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.blog-card p {
    margin-bottom: 1rem;
    color: var(--gray-600);
}

.blog-card-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 1.5rem;
    padding-top: 1rem;
    border-top: 1px solid var(--gray-200);   /* LIGHT BORDER */
    font-size: 0.9rem;
    color: var(--gray-500);
}

.blog-card-link {
    color: var(--primary-600);
    font-weight: 600;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.blog-card-link:hover {
    color: var(--primary-700);
    text-decoration: none;
}

/* ===== CTA BANNERS - GRADIENT STYLE ===== */
.cta-banner {
    background: var(--gradient-primary);     /* PURPLE GRADIENT */
    border-radius: var(--border-radius-xl);
    padding: 2rem;
    margin: 2.5rem 0;
    text-align: center;
    box-shadow: var(--shadow-lg);
}

.cta-banner h3 {
    color: white;
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.cta-banner p {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
}

.cta-button {
    display: inline-block;
    background: white;
    color: var(--primary-600);
    padding: 0.75rem 2rem;
    border-radius: var(--border-radius-md);
    font-weight: 600;
    text-decoration: none;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-sm);
}

.cta-button:hover {
    background: var(--gray-100);
    transform: translateY(-1px);
    color: var(--primary-700);
    text-decoration: none;
    box-shadow: var(--shadow-md);
}

/* ===== COMPARISON TABLES ===== */
.comparison-table {
    background-color: #FFFFFF;              /* WHITE TABLE */
    border: 1px solid var(--gray-200);     /* LIGHT BORDER */
    border-radius: var(--border-radius-xl);
    overflow: hidden;
    margin: 2rem 0;
    box-shadow: var(--shadow-md);
}

.comparison-table table {
    width: 100%;
    border-collapse: collapse;
}

.comparison-table th {
    background: var(--gradient-primary);    /* PURPLE HEADER */
    color: white;
    padding: 1rem;
    text-align: left;
    font-weight: 600;
}

.comparison-table td {
    padding: 1rem;
    border-bottom: 1px solid var(--gray-200);  /* LIGHT BORDERS */
    color: var(--gray-700);
}

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

.comparison-table .feature-highlight {
    background-color: rgba(99, 102, 241, 0.05);  /* VERY LIGHT PURPLE */
    color: var(--primary-600);
    font-weight: 600;
}

/* ===== FEATURE BOXES ===== */
.feature-box {
    background-color: #FFFFFF;              /* WHITE BOXES */
    border: 1px solid var(--gray-200);     /* LIGHT BORDER */
    border-radius: var(--border-radius-lg);
    padding: 1.5rem;
    margin: 1.5rem 0;
    box-shadow: var(--shadow-sm);
}

.feature-box.highlight {
    border-color: var(--primary-300);
    background-color: rgba(99, 102, 241, 0.02);
}

.feature-box h4 {
    margin-top: 0;
    color: var(--primary-600);
}

/* ===== QUOTE BLOCKS ===== */
.quote-block {
    border-left: 4px solid var(--primary-600);
    background-color: var(--gray-50);       /* VERY LIGHT BACKGROUND */
    padding: 1.5rem;
    margin: 2rem 0;
    border-radius: 0 var(--border-radius-md) var(--border-radius-md) 0;
    font-style: italic;
}

.quote-block p {
    margin-bottom: 0;
    color: var(--gray-800);
    font-size: 1.15rem;
}

/* ===== PROS/CONS ===== */
.pros-cons {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin: 2rem 0;
}

.pros, .cons {
    background-color: #FFFFFF;              /* WHITE BACKGROUNDS */
    border-radius: var(--border-radius-lg);
    padding: 1.5rem;
    border: 1px solid var(--gray-200);
    box-shadow: var(--shadow-sm);
}

.pros {
    border-left: 4px solid var(--success);
}

.cons {
    border-left: 4px solid var(--error);
}

.pros h4 {
    color: var(--success);
    margin-top: 0;
}

.cons h4 {
    color: var(--error);
    margin-top: 0;
}

/* ===== BREADCRUMBS ===== */
.breadcrumbs {
    margin-bottom: 2rem;
    font-size: 0.9rem;
    color: var(--gray-500);
}

.breadcrumbs a {
    color: var(--gray-600);
    text-decoration: none;
}

.breadcrumbs a:hover {
    color: var(--primary-600);
}

.breadcrumbs .separator {
    margin: 0 0.5rem;
    color: var(--gray-400);
}

/* ===== FOOTER - DARK LIKE MAIN SITE ===== */
.blog-footer {
    background-color: var(--gray-900);      /* DARK FOOTER */
    color: var(--gray-300);
    padding: 2rem 0;
    margin-top: 4rem;
    text-align: center;
}

.blog-footer .container {
    max-width: var(--blog-max-width);
    margin: 0 auto;
    padding: 0 var(--blog-padding);
}

.blog-footer p {
    margin: 0;
    color: var(--gray-400);
}

.blog-footer a {
    color: var(--gray-300);
}

.blog-footer a:hover {
    color: white;
}

/* ===== FEATURED SECTION ===== */
.featured-section {
    margin-bottom: 3rem;
}

.featured-section h2 {
    color: var(--gray-900);
    margin-bottom: 1.5rem;
    border-bottom: none;
    position: relative;
}

.featured-section h2::after {
    content: '';
    position: absolute;
    bottom: -0.5rem;
    left: 0;
    width: 60px;
    height: 3px;
    background: var(--gradient-primary);
    border-radius: 2px;
}

.blog-card.featured {
    border: 2px solid var(--primary-200);
    background: var(--gradient-hero);
}

/* ===== MOBILE HAMBURGER MENU ===== */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    z-index: 1001;
}

.mobile-menu-toggle span {
    width: 24px;
    height: 2px;
    background: var(--gray-700);
    transition: all var(--transition-base);
    display: block;
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 768px) {
    .navbar .container {
        padding: 0 1rem;
    }

    .nav-wrapper {
        height: 64px;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }

    .nav-menu {
        display: none;
        position: fixed;
        top: 64px;
        left: 0;
        right: 0;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 1.5rem;
        gap: 0;
        border-bottom: 1px solid var(--gray-200);
        box-shadow: var(--shadow-lg);
        z-index: 999;
    }

    .nav-menu.active {
        display: flex;
    }

    .nav-link {
        font-size: 1rem;
        padding: 0.75rem 0;
        border-bottom: 1px solid var(--gray-100);
    }

    .nav-link::after {
        display: none;
    }
    
    .blog-container {
        padding: calc(64px + 1rem) 1rem 1rem;
    }
    
    h1 {
        font-size: 1.75rem;
    }
    
    h2 {
        font-size: 1.375rem;
    }
    
    h3 {
        font-size: 1.15rem;
    }

    p, li {
        font-size: 1rem;
    }

    /* Tables: horizontal scroll on mobile */
    .comparison-table {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        margin-left: -1rem;
        margin-right: -1rem;
        border-radius: 0;
        border-left: none;
        border-right: none;
    }

    .comparison-table table {
        min-width: 500px;
    }

    .comparison-table th,
    .comparison-table td {
        padding: 0.75rem;
        font-size: 0.9rem;
        white-space: nowrap;
    }
    
    .pros-cons {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .cta-banner {
        padding: 1.5rem 1rem;
        margin: 2rem -1rem;
        border-radius: 0;
    }

    .cta-banner h3 {
        font-size: 1.25rem;
    }

    .cta-banner p {
        font-size: 1rem;
    }
    
    .blog-card {
        padding: 1.25rem;
    }

    .blog-card-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }

    /* Category grid on mobile */
    .category-grid {
        grid-template-columns: 1fr !important;
    }

    .feature-box {
        padding: 1rem;
    }

    .quote-block {
        padding: 1rem;
        margin: 1.5rem 0;
    }

    /* Tags wrap nicely */
    .blog-tags {
        display: flex;
        flex-wrap: wrap;
        gap: 0.5rem;
    }

    .blog-tag {
        font-size: 0.75rem;
        padding: 0.25rem 0.5rem;
    }

    /* Newsletter */
    .newsletter-form {
        flex-direction: column !important;
    }

    .newsletter-form input,
    .newsletter-form button {
        width: 100% !important;
    }

    /* Article meta info */
    .article-meta {
        flex-direction: column;
        gap: 0.5rem;
    }

    /* Images responsive */
    img {
        max-width: 100%;
        height: auto;
    }
}

@media (max-width: 480px) {
    .logo-text {
        font-size: 1.2rem;
    }
    
    .blog-container {
        padding: calc(64px + 0.75rem) 0.75rem 0.75rem;
    }
    
    h1 {
        font-size: 1.5rem;
    }

    h2 {
        font-size: 1.25rem;
    }

    .blog-card {
        padding: 1rem;
    }

    .cta-button {
        padding: 0.625rem 1.5rem;
        font-size: 0.95rem;
    }
}

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

/* ===== FOCUS STYLES ===== */
a:focus, button:focus {
    outline: 2px solid var(--primary-600);
    outline-offset: 2px;
}

/* ===== SCROLLBAR STYLING ===== */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--gray-100);
}

::-webkit-scrollbar-thumb {
    background: var(--gray-300);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-600);
}

/* ===== LOADING ANIMATION ===== */
.loading-skeleton {
    background: linear-gradient(90deg, var(--gray-100) 25%, var(--gray-200) 50%, var(--gray-100) 75%);
    background-size: 200% 100%;
    animation: loading 1.5s infinite;
    border-radius: var(--border-radius-md);
}

@keyframes loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}