/* Modern, clean and accessible design system */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    /* Light theme colors */
    --bg: #ffffff;
    --bg-alt: #f8fafc;
    --bg-card: #ffffff;
    --text: #1e293b;
    --text-light: #64748b;
    --primary-1: #6366f1;
    --primary-2: #4f46e5;
    --accent-1: #f472b6;
    --accent-2: #ec4899;
    --success: #10b981;
    --error: #ef4444;
    --border-color: rgba(0, 0, 0, 0.1);

    /* Typography */
    --font-base: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial;
    --line-height-base: 1.6;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;

    /* UI Elements */
    --card-radius: 16px;
    --btn-radius: 999px; /* pill buttons */
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.07), 0 1px 3px rgba(0,0,0,0.08);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -2px rgba(0,0,0,0.05);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
}

/* Dark theme colors */
[data-theme="dark"] {
    --bg: #0f172a;
    --bg-alt: #1e293b;
    --bg-card: #1e293b;
    --text: #e2e8f0;
    --text-light: #94a3b8;
    --primary-1: #818cf8;
    --primary-2: #6366f1;
    --accent-1: #f472b6;
    --accent-2: #ec4899;
    --border-color: rgba(255, 255, 255, 0.1);
}

/* Base styles with modern refinements */
html, body { 
    height: 100%;
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: var(--font-base);
    background: var(--bg);
    color: var(--text);
    line-height: var(--line-height-base);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

::selection {
    background: var(--primary-1);
    color: white;
}

.container {
    width: 100%;
    max-width: 100%;
    padding: 0 var(--spacing-md);
    margin: 0 auto;
    box-sizing: border-box;
}

.header {
    background: var(--bg);
    color: var(--text);
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.header h1 {
    margin: 0;
    font-size: 1.5rem;
    font-weight: 600;
    background: linear-gradient(135deg, var(--primary-1), var(--primary-2));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -0.02em;
}

.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-sm) 0;
    gap: var(--spacing-md);
}

.nav-links {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    align-items: center;
}

/* Theme toggle button */
.theme-toggle {
    background: none;
    border: none;
    padding: var(--spacing-sm);
    cursor: pointer;
    color: var(--text-light);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.theme-toggle:hover {
    background: var(--bg-alt);
    color: var(--primary-1);
    transform: scale(1.1);
}

.theme-toggle::before {
    content: "🌙";
    position: absolute;
    opacity: 0;
    transform: translateY(100%);
    transition: all var(--transition-base);
}

.theme-toggle::after {
    content: "☀️";
    position: absolute;
    opacity: 1;
    transform: translateY(0);
    transition: all var(--transition-base);
}

[data-theme="dark"] .theme-toggle::before {
    opacity: 1;
    transform: translateY(0);
}

[data-theme="dark"] .theme-toggle::after {
    opacity: 0;
    transform: translateY(-100%);
}

.nav-links a {
    color: var(--text-light);
    text-decoration: none;
    font-weight: 500;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--btn-radius);
    transition: all var(--transition-fast);
}

.nav-links a:hover {
    color: var(--primary-1);
    background: var(--bg-alt);
}

.nav-links a[rel="noopener"]::after{
    content: '↗';
    display:inline-block;
    margin-left:0.45rem;
    font-size:0.85rem;
    opacity:0.8;
}

.nav-links svg {
    vertical-align: middle;
    display: inline-block;
    margin-right: 0.15rem;
    color: inherit;
}

/* Modern card grid with hover effects */
.cards-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    padding: var(--spacing-md) 0;
}

.card {
    background: var(--bg-card);
    border-radius: var(--card-radius);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    transition: all var(--transition-base);
    border: 1px solid var(--border-color);
    position: relative;
    z-index: 1;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--primary-1), var(--accent-1));
    opacity: 0;
    transition: opacity var(--transition-base);
    z-index: -1;
    border-radius: var(--card-radius);
}

.card:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.card:hover::before {
    opacity: 0.1;
}

.card-img-top {
    width: 100%;
    height: 220px;
    object-fit: cover;
    transition: all var(--transition-base);
    filter: brightness(1);
}

.card:hover .card-img-top {
    transform: scale(1.05);
    filter: brightness(1.1);
}

.card-body {
    padding: var(--spacing-lg);
}

.card-title {
    margin: 0 0 var(--spacing-sm);
    font-weight: 600;
    color: var(--text);
    font-size: 1.25rem;
    line-height: 1.4;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border-radius: var(--btn-radius);
    font-weight: 600;
    text-align: center;
    transition: all var(--transition-fast);
    text-decoration: none;
    border: 0;
    cursor: pointer;
    gap: var(--spacing-sm);
    font-size: 0.95rem;
    /* ensure pill appearance on all buttons */
    border-radius: 999px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-1), var(--primary-2));
    color: white;
    box-shadow: 0 2px 4px rgba(59, 130, 246, 0.25);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(59, 130, 246, 0.35);
}

.btn-secondary {
    background: var(--bg-alt);
    color: var(--text);
    border: 1px solid rgba(0,0,0,0.1);
}

.btn-secondary:hover {
    background: var(--bg);
    border-color: var(--primary-1);
    color: var(--primary-1);
}

/* Footer removed - styles cleaned up */

.article-content {
    background: var(--bg);
    border-radius: var(--card-radius);
    padding: var(--spacing-xl);
    margin-top: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.article-content h1 {
    font-size: 2rem;
    margin: var(--spacing-md) 0 var(--spacing-lg);
    color: var(--text);
    font-weight: 700;
    line-height: 1.3;
}

.article-content p {
    margin: 0 0 var(--spacing-md);
    color: var(--text-light);
    line-height: 1.7;
}

.trix-content img{max-width:100%;height:auto;cursor:pointer;border-radius:6px}

.breadcrumb{background:transparent;padding:0;margin-bottom:1rem}
.breadcrumb{
    display:flex;
    flex-wrap:wrap;
    gap:0.5rem;
    align-items:center;
    background:transparent;
    padding:0;
    margin-bottom:1rem;
}

.breadcrumb-item{
    list-style:none;
}

.breadcrumb-item a{
    display:inline-block;
    padding:0.4rem 0.8rem;
    background: var(--bg-alt);
    color: var(--text);
    border-radius: 999px;
    text-decoration:none;
    font-weight:600;
    transition: all var(--transition-fast);
    border: 1px solid var(--border-color);
}

.breadcrumb-item a:hover{
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.breadcrumb-item.active{
    display:inline-block;
    padding:0.45rem 1rem;
    border-radius:999px;
    background: linear-gradient(90deg, var(--primary-1), var(--accent-1));
    color: #fff;
    font-weight:700;
    border: none;
}

/* small separator arrow */
.breadcrumb-item + .breadcrumb-item::before{
    content: '›';
    margin: 0 0.35rem;
    color: var(--text-light);
}

/* floats for image shortcodes */
.float-left{float:left;margin:0 1rem 1rem 0;max-width:40%}
.float-right{float:right;margin:0 0 1rem 1rem;max-width:40%}

/* video responsive container */
.video-player{width:100%;aspect-ratio:16/9;overflow:hidden;border-radius:8px;margin-bottom:1rem}
.video-player iframe{width:100%;height:100%;border:0}

/* admin navigation */
.admin-nav{background:transparent;padding:.5rem 0;margin-bottom:1rem}
.admin-nav a{display:inline-block;margin:.25rem;padding:.5rem .75rem;border-radius:6px;background:linear-gradient(135deg,var(--primary-1),var(--primary-2));color:#fff;text-decoration:none}

/* Buttons full width on small screens */
.btn-full{display:block;width:100%}

/* small utilities */
.text-muted{color:var(--muted)}

/* Responsive layouts */
@media (min-width: 576px) {
    .container {
        max-width: 540px;
    }
    .header h1 {
        font-size: 1.75rem;
    }
}

@media (min-width: 768px) {
    .container {
        max-width: 720px;
    }
    .cards-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .article-content {
        padding: var(--spacing-xl);
        margin-top: var(--spacing-xl);
    }
    .btn {
        display: inline-flex;
        width: auto;
    }
}

@media (min-width: 992px) {
    .container {
        max-width: 960px;
    }
    .cards-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--spacing-xl);
    }
    .header {
        padding: var(--spacing-lg) 0;
    }
}

@media (min-width: 1200px) {
    .container {
        max-width: 1140px;
    }
    .article-content {
        padding: calc(var(--spacing-xl) * 1.5);
    }
}

/* Enhanced Trix editor */
trix-editor {
    min-height: 280px;
    border-radius: var(--card-radius);
    border: 1px solid rgba(0,0,0,0.1);
    padding: var(--spacing-md);
    background: var(--bg);
    color: var(--text);
    font-family: var(--font-base);
    line-height: var(--line-height-base);
    transition: border-color var(--transition-fast);
}

trix-editor:focus {
    outline: none;
    border-color: var(--primary-1);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

/* Small screen optimizations */
@media (max-width: 575.98px) {
    .card-img-top {
        height: 200px;
    }
    .btn {
        width: 100%;
        margin-bottom: var(--spacing-sm);
    }
    .article-content {
        padding: var(--spacing-md);
        border-radius: var(--card-radius);
        margin-top: var(--spacing-md);
    }
    .nav-links {
        gap: var(--spacing-xs);
    }
    .header h1 {
        font-size: 1.25rem;
    }
}

/* Modern utilities */
.text-gradient {
    background: linear-gradient(135deg, var(--primary-1), var(--primary-2));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.glassmorphism {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.shadow-hover {
    transition: box-shadow var(--transition-fast);
}

.shadow-hover:hover {
    box-shadow: var(--shadow-lg);
}