/* ============================================
   Mark Richardson Medical Practice
   Clean Minimalist · Teal + Slate Grey
   ============================================ */

/* --- Reset & Base --- */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --teal-50: #f0fdfa;
    --teal-100: #ccfbf1;
    --teal-200: #99f6e4;
    --teal-300: #5eead4;
    --teal-400: #2dd4bf;
    --teal-500: #14b8a6;
    --teal-600: #0d9488;
    --teal-700: #0f766e;
    --teal-800: #115e59;
    --teal-900: #134e4a;
    
    --slate-50: #f8fafc;
    --slate-100: #f1f5f9;
    --slate-200: #e2e8f0;
    --slate-300: #cbd5e1;
    --slate-400: #94a3b8;
    --slate-500: #64748b;
    --slate-600: #475569;
    --slate-700: #334155;
    --slate-800: #1e293b;
    --slate-900: #0f172a;
    --slate-950: #080f1a;
    
    --white: #ffffff;
    --black: #0a0a0a;
    
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-serif: 'Playfair Display', Georgia, serif;
    
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 6rem;
    --space-5xl: 8rem;
    
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    font-weight: 300;
    color: var(--slate-800);
    background-color: var(--white);
    line-height: 1.7;
    overflow-x: hidden;
}

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

a {
    color: inherit;
    text-decoration: none;
}

button {
    cursor: pointer;
    border: none;
    background: none;
    font-family: inherit;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-xl);
}

/* --- Typography --- */
.section-heading {
    font-family: var(--font-serif);
    font-size: clamp(2rem, 4vw, 3.25rem);
    font-weight: 400;
    line-height: 1.15;
    color: var(--slate-900);
    margin-bottom: var(--space-xl);
    letter-spacing: -0.02em;
}

.heading-accent {
    font-style: italic;
    color: var(--teal-700);
}

/* --- Label / Eyebrow --- */
.hero-label,
.about-label,
.services-label,
.approach-label,
.location-label,
.contact-label {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--teal-600);
    margin-bottom: var(--space-lg);
}

.hero-label-line,
.about-label-line,
.services-label-line,
.approach-label-line,
.location-label-line,
.contact-label-line {
    display: block;
    width: 32px;
    height: 1px;
    background-color: var(--teal-400);
    flex-shrink: 0;
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    font-family: var(--font-sans);
    font-weight: 400;
    font-size: 0.875rem;
    letter-spacing: 0.02em;
    padding: 0.875rem 1.75rem;
    border-radius: var(--radius-sm);
    transition: all var(--transition);
    white-space: nowrap;
}

.btn-primary {
    background-color: var(--teal-700);
    color: var(--white);
    border: 1.5px solid var(--teal-700);
}

.btn-primary:hover {
    background-color: var(--teal-800);
    border-color: var(--teal-800);
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(13, 148, 136, 0.25);
}

.btn-ghost {
    background-color: transparent;
    color: var(--slate-700);
    border: 1.5px solid var(--slate-300);
}

.btn-ghost:hover {
    border-color: var(--teal-600);
    color: var(--teal-700);
}

.btn-outline {
    background-color: transparent;
    color: var(--teal-700);
    border: 1.5px solid var(--teal-700);
}

.btn-outline:hover {
    background-color: var(--teal-700);
    color: var(--white);
}

.btn-full {
    width: 100%;
    justify-content: center;
}

/* --- Navigation --- */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--slate-100);
    transition: box-shadow var(--transition);
}

.nav.scrolled {
    box-shadow: 0 1px 20px rgba(0, 0, 0, 0.06);
}

.nav-inner {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-xl);
    height: 72px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

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

.nav-brand-mark {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background-color: var(--teal-700);
    color: var(--white);
    font-family: var(--font-serif);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    border-radius: var(--radius-sm);
}

.nav-brand-text {
    font-size: 0.9375rem;
    font-weight: 400;
    color: var(--slate-800);
    letter-spacing: -0.01em;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-2xl);
}

.nav-links a {
    font-size: 0.8125rem;
    font-weight: 400;
    color: var(--slate-600);
    letter-spacing: 0.01em;
    transition: color var(--transition);
    position: relative;
}

.nav-links a:not(.nav-cta)::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--teal-600);
    transition: width var(--transition);
}

.nav-links a:not(.nav-cta):hover {
    color: var(--teal-700);
}

.nav-links a:not(.nav-cta):hover::after {
    width: 100%;
}

.nav-cta {
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--teal-700) !important;
    border: 1.5px solid var(--teal-200);
    padding: 0.5rem 1.125rem;
    border-radius: var(--radius-sm);
    transition: all var(--transition) !important;
}

.nav-cta::after {
    display: none !important;
}

.nav-cta:hover {
    background-color: var(--teal-50) !important;
    border-color: var(--teal-400) !important;
}

/* Mobile nav toggle */
.nav-toggle {
    display: none;
    flex-direction: