@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@400;600;700&display=swap');

:root {
    /* Colors */
    --primary: #6366f1;
    --primary-hover: #4f46e5;
    --primary-light: #e0e7ff;
    --secondary: #ec4899;
    --accent: #06b6d4;
    --background: #f8fafc;
    --surface: #ffffff;
    --text-main: #1e293b;
    --text-muted: #64748b;
    --border: #e2e8f0;
    --error: #ef4444;
    --success: #22c55e;

    /* Dark Mode (Planned) */
    --dark-bg: #0f172a;
    --dark-surface: #1e293b;
    --dark-text: #f1f5f9;
    --dark-border: #334155;

    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 2rem;
    --space-xl: 4rem;

    /* Shadow & Effects */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --glass: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(255, 255, 255, 0.3);
    --radius: 12px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--background);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Outfit', sans-serif;
    color: var(--text-main);
    font-weight: 700;
    line-height: 1.2;
}

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

ul {
    list-style: none;
}

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

button {
    cursor: pointer;
    border: none;
    outline: none;
    font-family: inherit;
    transition: all 0.3s ease;
}

/* Common Layout */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

/* Navigation */
nav {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--glass);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--glass-border);
    height: 70px;
    display: flex;
    align-items: center;
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    font-family: 'Outfit', sans-serif;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-links {
    display: flex;
    gap: var(--space-lg);
}

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

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

/* Buttons */
.btn {
    padding: 0.6rem 1.2rem;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 0.9rem;
}

.btn-primary {
    background-color: var(--primary);
    color: white;
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-outline {
    border: 1px solid var(--border);
    background: transparent;
}

.btn-outline:hover {
    background: var(--primary-light);
    border-color: var(--primary);
}

.btn-sm {
    padding: 0.4rem 1rem;
    font-size: 0.8rem;
    border-radius: 50px;
}

/* Blog Cards Grid */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 2rem;
    margin-top: var(--space-lg);
}

@media (max-width: 640px) {
    .blog-grid {
        grid-template-columns: 1fr;
    }
}

.blog-card {
    background: var(--surface);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.blog-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
}

.card-img-wrapper {
    width: 100%;
    height: 220px;
    overflow: hidden;
    position: relative;
}

.card-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.blog-card:hover .card-img {
    transform: scale(1.1);
}

.card-content {
    padding: 1.5rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.card-tag {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--primary);
    background: var(--primary-light);
    padding: 0.25rem 0.75rem;
    border-radius: 50px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.75rem;
    width: fit-content;
}

.card-title {
    font-size: 1.4rem;
    margin-bottom: 0.75rem;
    line-height: 1.3;
}

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

.card-excerpt {
    font-size: 0.95rem;
    color: var(--text-muted);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: 1.5rem;
    flex: 1;
}

.card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 1rem;
    border-top: 1px solid var(--border);
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 500;
}

.card-footer-stats {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.card-footer-item {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.card-footer-item svg {
    opacity: 0.7;
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.animate-fade-in {
    animation: fadeIn 0.8s ease-out forwards;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
}