:root {
    --bg: #f0f4ff;
    --bg-soft: #e2e8f7;
    --text: #111111;
    --text-light: #555555;
    --accent: #2563eb;
    --accent-dark: #1d4ed8;
    --border: #e4e4e7;
    --btn-text-color: #ffffff;
    --color-error: #dc2626;
    --dot-red: #ff5f57;
    --dot-yellow: #febc2e;
    --dot-green: #28c840;
    --code-comment: #6b7280;
    --code-string: #16a34a;
    --code-number: #ea580c;
    --boxshadows :  rgba(0, 0, 0, 0.1);
    --accent-glow: rgba(37, 99, 235, 0.2);

    --text-xs: 0.95rem;
    --text-sm: 1.1rem;
    --text-md: 1.5rem;
    --text-lg: 2.25rem;
    --text-xl: 3.5rem;

    --gap-xs: 0.35rem;
    --gap-sm: 0.75rem;
    --gap-md: 1.5rem;
    --gap-lg: 3rem;
    --gap-xl: 6rem;

    --font-head: 'Playfair Display', Georgia, serif;
    --font-body: 'Inter', system-ui, sans-serif;
    --font-extra: 'Courier New', monospace;
}

.dark {
    --bg: #0f172a;
    --bg-soft: #1e293b;
    --text: #f0f0f0;
    --text-light: #aaaaaa;
    --border: #2a2a2a;
    --color-error: #f87171;
    --code-comment: #9ca3af;
    --code-string: #4ade80;
    --code-number: #fb923c;
}
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-color: var(--bg);
    color: var(--text);
    font-size: var(--text-md);
    font-family: var(--font-body);
    transition: background-color 0.4s ease, color 0.4s ease;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

main {
    width: 92%;
    max-width: 1600px;
    margin: 0 auto;
    padding: var(--gap-xl) var(--gap-lg);
    flex: 1;
}
h1 {
    color: var(--text);
    font-family: var(--font-head);
    font-size: var(--text-xl);
    margin-bottom: var(--gap-md);
}

h2 {
    color: var(--text);
    font-family: var(--font-head);
    font-size: var(--text-lg);
    margin-bottom: var(--gap-sm);
}

p {
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: var(--gap-md);
    max-width: 80ch;
}
header, footer {
    background-color: var(--bg-soft);
    padding: var(--gap-md) 4%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

header {
    border-bottom: 1px solid var(--border);
}

footer {
    border-top: 1px solid var(--border);
}

nav {
    display: flex;
    gap: var(--gap-md);
}

nav a {
    text-decoration: none;
    color: var(--text);
    font-family: var(--font-head);
    font-size: var(--text-sm);
}

nav a:hover {
    color: var(--accent);
}

nav a[aria-current="page"] {
    color: var(--accent);
    font-weight: 700;
    border-bottom: 2px solid var(--accent);
}

#theme-toggle {
    background: none;
    border: 1px solid var(--border);
    border-radius: 6px;
    cursor: pointer;
    font-size: var(--text-md);
    color: var(--text);
    transition: border-color 0.3s ease;
    padding: var(--gap-xs) var(--gap-sm);
}

#theme-toggle:hover {
    border-color: var(--accent);
}
.btn {
    display: inline-block;
    background-color: var(--accent);
    color: var(--btn-text-color);
    padding: var(--gap-sm) var(--gap-lg);
    border-radius: 50px;
    border: none;
    text-decoration: none;
    font-family: var(--font-head);
    font-size: var(--text-sm);
    margin-top: var(--gap-md);
    cursor: pointer;
    transition: background-color 0.3s ease-out;
}

.btn:hover {
    background-color: var(--accent-dark);
}

.btn-outline {
    background-color: transparent;
    border: 2px solid var(--accent);
    color: var(--accent);
    box-shadow: none;
}

.btn-outline:hover {
    background-color: var(--accent);
    color: var(--btn-text-color);
}

.tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--gap-sm);
    margin-top: var(--gap-md);
}

.tag {
    background-color: var(--accent);
    color: var(--btn-text-color);
    padding: var(--gap-xs) var(--gap-md);
    border-radius: 20px;
    font-size: var(--text-xs);
    font-family: var(--font-head);
}
@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes blink {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0;
    }
}
/* prefers-reduced-motion: some people get headaches or worse from
   animations — this OS setting is their way of asking sites to calm
   down. killing everything with !important is blunt but it works,
   no individual rule can accidentally override it. */
@media(prefers-reduced-motion: reduce) {
    * {
        animation: none !important;
        transition: none !important;
    }
}
@media (max-width: 1024px) {
    main, header, footer {
        width: 100% !important;
        padding-left: var(--gap-lg) !important;
        padding-right: var(--gap-lg) !important;
        box-sizing: border-box !important;
    }
}

@media (max-width: 768px) {
    main, header, footer {
        width: 100% !important;
        padding-left: var(--gap-md) !important;
        padding-right: var(--gap-md) !important;
        box-sizing: border-box !important;
        
        
    }
    header {
        width: 100%;
        flex-direction: column;
        gap: var(--gap-sm);
        text-align: center;
    }
    footer {
        width: 100%;
        flex-direction: column;
        gap: var(--gap-sm);
        text-align: center;
    }
    
}