:root {
    --brand-teal: #2dd4bf;
    --brand-teal-dark: #0f766e;
    --brand-blue: #60a5fa;
    --brand-blue-dark: #2563eb;
    --border-subtle: #e5e7eb;
    --bg-light: #f8fafc;
    --text-main: #0f172a;
    --text-muted: #64748b;
    --glass-bg: rgba(255, 255, 255, 0.85);
    --font-sans: 'Inter', ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

body {
    font-family: var(--font-sans);
    color: var(--text-main);
    background-color: #ffffff;
    -webkit-font-smoothing: antialiased;
}

/* Glassmorphism Navbar */
.navbar-glass {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-subtle);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.03);
}

/* Custom Buttons */
.btn-primary-custom {
    background: linear-gradient(135deg, var(--brand-teal), var(--brand-blue));
    border: none;
    color: white;
    font-weight: 600;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    box-shadow: 0 4px 14px rgba(45, 212, 191, 0.3);
}

.btn-primary-custom:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(45, 212, 191, 0.4);
    color: white;
}

.btn-ghost {
    background: transparent;
    color: var(--text-muted);
    font-weight: 600;
    border: 1px solid transparent;
    transition: all 0.2s ease;
}

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

/* Subtle Cards for Tech UI */
.card-tech {
    border: 1px solid var(--border-subtle);
    border-radius: 16px;
    background: #ffffff;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.02);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card-tech:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.06);
}

/* Pricing Card Featured */
.card-featured {
    border: 2px solid var(--brand-teal);
    background: linear-gradient(to bottom, #ffffff, #f0fdfa);
    position: relative;
}

.card-featured::before {
    content: "RECOMMENDED";
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--brand-teal);
    color: white;
    font-size: 0.75rem;
    font-weight: bold;
    padding: 4px 12px;
    border-radius: 9999px;
    letter-spacing: 0.05em;
}

/* Icon Containers */
.icon-box {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-light);
    color: var(--brand-teal-dark);
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

/* Typography tweaks */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    letter-spacing: -0.03em;
    color: var(--text-main);
}

.text-muted-custom {
    color: var(--text-muted) !important;
}

/* Custom Badges/Pills */
.badge-custom {
    background: var(--bg-light);
    color: var(--brand-teal-dark);
    border: 1px solid var(--border-subtle);
    font-weight: 600;
    padding: 0.5em 0.75em;
    border-radius: 9999px;
}

/* Gradients for text or backgrounds */
.text-gradient {
    background: linear-gradient(135deg, var(--brand-teal-dark), var(--brand-blue-dark));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Sidebar TOC */
.sidebar-toc {
    position: sticky;
    top: 5rem;
    border: 1px solid var(--border-subtle);
    border-radius: 16px;
    padding: 1.5rem;
    background: var(--bg-light);
}

.sidebar-toc a {
    color: var(--text-muted);
    text-decoration: none;
    display: block;
    padding: 0.5rem 0.75rem;
    border-radius: 8px;
    transition: all 0.2s ease;
    font-size: 0.9rem;
}

.sidebar-toc a:hover {
    background: #ffffff;
    color: var(--brand-teal-dark);
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

/* Hero Section Gradients */
.hero-light {
    position: relative;
    overflow: hidden;
    background-color: #ffffff;
}
.hero-light::before {
    content: "";
    position: absolute;
    top: -20%;
    left: -10%;
    width: 60%;
    height: 60%;
    background: radial-gradient(circle, rgba(96,165,250,0.1) 0%, rgba(255,255,255,0) 70%);
    z-index: 0;
}
.hero-light::after {
    content: "";
    position: absolute;
    bottom: -20%;
    right: -10%;
    width: 60%;
    height: 60%;
    background: radial-gradient(circle, rgba(45,212,191,0.1) 0%, rgba(255,255,255,0) 70%);
    z-index: 0;
}
.hero-content {
    position: relative;
    z-index: 1;
}

/* Images */
.screenshot-container {
    border: 1px solid var(--border-subtle);
    border-radius: 16px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.08);
    overflow: hidden;
}