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

:root[data-bs-theme="light"] {
  --bg-main: #FFFFFF;
  --bg-surface: #F8FAFC;
  --bg-card: #FFFFFF;
  --brand-primary: #2563EB;
  --brand-accent: #7C3AED;
  --text-main: #111827;
  --text-muted: #6B7280;
  --border-subtle: #E5E7EB;
  --code-bg: #0F172A;
  --code-text: #F8FAFC;
  --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);
}

:root[data-bs-theme="dark"] {
  --bg-main: #0B0F19;
  --bg-surface: #111827;
  --bg-card: #111827;
  --brand-primary: #3B82F6;
  --brand-accent: #8B5CF6;
  --text-main: #F8FAFC;
  --text-muted: #94A3B8;
  --border-subtle: rgba(255, 255, 255, 0.08);
  --code-bg: #030712;
  --code-text: #E2E8F0;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.5);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.6), 0 2px 4px -1px rgba(0, 0, 0, 0.4);
}

/* Base Styles & Typography Overrides */
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-main);
    color: var(--text-main);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    transition: background-color 150ms ease-out, color 150ms ease-out;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    letter-spacing: -0.02em;
    color: var(--text-main);
    margin-bottom: 1rem;
}

a {
    color: var(--brand-primary);
    text-decoration: none;
    transition: color 150ms ease-out;
}

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

/* Micro-Borders & Cards */
.card, .border {
    background-color: var(--bg-card);
    border: 1px solid var(--border-subtle) !important;
    border-radius: 8px;
    box-shadow: var(--shadow-sm);
    transition: transform 150ms ease-out, box-shadow 150ms ease-out;
}

.card:hover.hover-lift {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Buttons */
.btn {
    border-radius: 6px;
    font-weight: 500;
    transition: all 150ms ease-out;
    border: 1px solid var(--border-subtle);
}

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

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

.btn-secondary {
    background-color: var(--bg-surface);
    color: var(--text-main);
}

.btn-secondary:hover {
    background-color: var(--border-subtle);
    color: var(--text-main);
}

/* Forms */
.form-control, .form-select {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    color: var(--text-main);
    border-radius: 6px;
}
.form-control:focus, .form-select:focus {
    background-color: var(--bg-surface);
    color: var(--text-main);
    border-color: var(--brand-primary);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.25);
}

/* Code Blocks */
pre, code {
    font-family: 'JetBrains Mono', monospace;
    background-color: var(--code-bg);
    color: var(--code-text);
    border-radius: 6px;
}

pre {
    padding: 1rem;
    overflow-x: auto;
    border: 1px solid var(--border-subtle);
}

code {
    padding: 0.2em 0.4em;
    font-size: 0.875em;
}

pre code {
    padding: 0;
    border: none;
    font-size: 0.875em;
}

/* Utilities */
.text-muted {
    color: var(--text-muted) !important;
}
.bg-surface {
    background-color: var(--bg-surface) !important;
}
.max-w-3xl {
    max-width: 48rem;
    margin-left: auto;
    margin-right: auto;
}
.max-w-4xl {
    max-width: 56rem;
    margin-left: auto;
    margin-right: auto;
}
.max-w-5xl {
    max-width: 64rem;
    margin-left: auto;
    margin-right: auto;
}
.max-w-6xl {
    max-width: 72rem;
    margin-left: auto;
    margin-right: auto;
}

/* Navbar */
.navbar-brand {
    font-weight: 700;
    letter-spacing: -0.05em;
    color: var(--text-main) !important;
}

/* Theme Toggle */
.theme-toggle {
    cursor: pointer;
    background: none;
    border: none;
    color: var(--text-muted);
    padding: 0.5rem;
    border-radius: 50%;
    transition: all 150ms ease-out;
}
.theme-toggle:hover {
    color: var(--text-main);
    background-color: var(--bg-surface);
}

/* Animations */
.animate-pop {
    animation: pop 300ms ease-out forwards;
}

@keyframes pop {
    0% { transform: scale(1); }
    50% { transform: scale(1.2); color: var(--brand-accent); }
    100% { transform: scale(1); }
}