/* === OUTFIT & INTER FONT STACK === */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@400;500;600;700;800&family=Inter:wght@300;400;500;600&display=swap');

:root {
    /* --- COLOR PALETTE: MEDICAL FUTURISM --- */
    --primary: #2563EB;
    --primary-dark: #0F172A;
    --primary-light: #EFF6FF;

    --accent-cyan: #06B6D4;
    --accent-teal: #10B981;
    --accent-rose: #F43F5E;

    --bg-body: #F8FAFC;
    --bg-card: #FFFFFF;
    --border: #E2E8F0;
    --text-main: #0F172A;
    --text-body: #475569;
    --text-muted: #94A3B8;

    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-card: 0 4px 6px -1px rgba(15, 23, 42, 0.05), 0 2px 4px -1px rgba(15, 23, 42, 0.03);
    --shadow-float: 0 20px 25px -5px rgba(15, 23, 42, 0.1), 0 10px 10px -5px rgba(15, 23, 42, 0.04);
    --glow-primary: 0 0 40px -10px rgba(37, 99, 235, 0.2);

    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-body);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
}

h1,
h2,
h3,
h4 {
    font-family: var(--font-heading);
    font-weight: 700;
}

a {
    text-decoration: none;
    color: inherit;
    transition: 0.2s;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* --- NAVIGATION --- */
.nav-fixed {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: transparent;
    padding: 1.25rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.3s ease;
}

.nav-fixed.scrolled {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    padding: 0.75rem 5%;
}

/* --- BUTTONS --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    padding: 0.875rem 1.75rem;
    font-weight: 600;
    border-radius: 100px;
    cursor: pointer;
    transition: 0.3s;
    font-family: var(--font-heading);
    border: none;
}

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

.btn-primary:hover {
    background: #000;
    transform: translateY(-2px);
}

.btn-secondary {
    background: white;
    color: var(--text-main);
    border: 1px solid var(--border);
}

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

/* --- TAGS --- */
.tag {
    display: inline-flex;
    padding: 0.25rem 0.75rem;
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
}

.tag-blue {
    background: #DBEAFE;
    color: #1E40AF;
}

.tag-green {
    background: #D1FAE5;
    color: #065F46;
}

@media (max-width: 768px) {
    .container {
        padding: 0 1rem;
    }
}