/* ==========================================================================
   Med Spa Theme. Core Styles.
   Refined, results-forward design for independent med spas and clinics.
   ========================================================================== */

/* --------------------------------------------------------------------------
   CSS Custom Properties
   -------------------------------------------------------------------------- */
:root {
    /* Colors. Soft Blush (default, overridden per skin) */
    --color-primary: #3a3330;
    --color-primary-dark: #2a2421;
    --color-accent: #c08a86;
    --color-accent-dark: #a8716c;
    --color-text: #3a3330;
    --color-text-muted: #8a7d76;
    --color-text-light: #f7f1ec;
    --color-bg: #ffffff;
    --color-bg-secondary: #f7f1ec;
    --color-border: #ece3db;
    --color-success: #4f7d5e;
    --color-white: #ffffff;
    --color-black: #000000;

    /* Typography */
    --font-heading: 'Cormorant Garamond', Georgia, serif;
    --font-body: 'Inter', system-ui, sans-serif;
    --font-size-base: 17px;
    --font-size-sm: 0.875rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-h1: clamp(2.75rem, 5.5vw, 4.5rem);
    --font-size-h2: clamp(2rem, 3.6vw, 3rem);
    --font-size-h3: clamp(1.375rem, 2.2vw, 1.875rem);
    --line-height-body: 1.75;
    --letter-spacing-heading: 0.005em;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 5rem;
    --spacing-section: clamp(3.5rem, 8vw, 6.5rem);

    /* Layout */
    --max-width: 1200px;
    --max-width-narrow: 800px;
    --header-height: 76px;

    /* Borders */
    --radius-sm: 3px;
    --radius-md: 6px;
    --radius-lg: 14px;
    --radius-full: 9999px;

    /* Shadows. Soft and restrained. */
    --shadow-sm: 0 1px 3px rgba(58, 51, 48, 0.06);
    --shadow-md: 0 6px 20px rgba(58, 51, 48, 0.08);
    --shadow-lg: 0 16px 44px rgba(58, 51, 48, 0.12);

    /* Transitions */
    --transition: 220ms ease;
    --transition-slow: 400ms ease;
}

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

html {
    font-size: var(--font-size-base);
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: var(--line-height-body);
    color: var(--color-text);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

ul,
ol {
    list-style: none;
}

a {
    color: var(--color-accent-dark);
    text-decoration: none;
    transition: color var(--transition);
}

a:hover,
a:focus {
    color: var(--color-primary);
    text-decoration: underline;
}

/* --------------------------------------------------------------------------
   Typography
   -------------------------------------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 500;
    line-height: 1.14;
    letter-spacing: var(--letter-spacing-heading);
    color: var(--color-text);
}

h1 { font-size: var(--font-size-h1); }
h2 { font-size: var(--font-size-h2); }
h3 { font-size: var(--font-size-h3); }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1.0625rem; }

p {
    margin-bottom: 1rem;
}

p:last-child {
    margin-bottom: 0;
}

strong {
    font-weight: 600;
}

em {
    font-style: italic;
}

/* --------------------------------------------------------------------------
   Layout Utilities
   -------------------------------------------------------------------------- */
.container {
    max-width: var(--max-width);
    margin-left: auto;
    margin-right: auto;
    padding-left: 1.25rem;
    padding-right: 1.25rem;
}

@media (min-width: 768px) {
    .container {
        padding-left: 2rem;
        padding-right: 2rem;
    }
}

.section {
    padding-top: var(--spacing-section);
    padding-bottom: var(--spacing-section);
}

.section--bg-secondary {
    background-color: var(--color-bg-secondary);
}

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

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    max-width: 720px;
    margin-left: auto;
    margin-right: auto;
}

.section-header h2 {
    margin-bottom: var(--spacing-sm);
}

.section-header p {
    font-size: var(--font-size-lg);
    color: var(--color-text-muted);
}

.overline {
    display: inline-block;
    font-family: var(--font-body);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--color-accent-dark);
    margin-bottom: var(--spacing-sm);
}

/* Accessibility: skip link */
.skip-to-content {
    position: absolute;
    top: -9999px;
    left: 0;
    z-index: 9999;
    padding: 0.75rem 1.25rem;
    background: var(--color-primary);
    color: var(--color-white);
    font-weight: 600;
    text-decoration: none;
    border-radius: 0 0 var(--radius-md) 0;
}

.skip-to-content:focus {
    top: 0;
}

/* Utility spacing */
.mt-sm  { margin-top: var(--spacing-sm); }
.mt-md  { margin-top: var(--spacing-md); }
.mt-lg  { margin-top: var(--spacing-lg); }
.mt-xl  { margin-top: var(--spacing-xl); }
.mb-sm  { margin-bottom: var(--spacing-sm); }
.mb-md  { margin-bottom: var(--spacing-md); }
.mb-lg  { margin-bottom: var(--spacing-lg); }
.mb-xl  { margin-bottom: var(--spacing-xl); }

/* Breadcrumbs */
.breadcrumbs {
    padding: var(--spacing-sm) 0;
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.breadcrumbs ol {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.25rem;
    list-style: none;
}

.breadcrumbs li + li::before {
    content: '/';
    margin-right: 0.25rem;
    color: var(--color-border);
}

.breadcrumbs a {
    color: var(--color-text-muted);
}

.breadcrumbs a:hover {
    color: var(--color-accent-dark);
}

/* Focus styles */
:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 3px;
    border-radius: var(--radius-sm);
}