/**
 * BCSS Public Site Base CSS
 *
 * Base styles for public marketing sites.
 * Uses CSS variables from variables.css which can be overridden by product themes.
 */

/* ===== Layout ===== */
.public-layout {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* RES-H-017 P2: Uses --public-header-height from variables.css */
.public-content {
    flex: 1;
    padding-top: calc(var(--public-header-height) + var(--spacing-md, 1rem));
}

/* ===== Skip to Content (Accessibility) ===== */
.skip-to-content {
    background-color: var(--secondary-color);  /* Darker for WCAG AA contrast */
    border-radius: var(--border-radius);
    color: #fff;
    left: -9999px;
    padding: var(--spacing-sm) var(--spacing-md);
    position: absolute;
    text-decoration: none;
    z-index: var(--z-tooltip);
}

.skip-to-content:focus {
    left: var(--spacing-md);
    outline: 3px solid #fff;
    outline-offset: -3px;
    top: var(--spacing-md);
}

.skip-to-content:hover {
    background-color: var(--secondary-hover);
    color: #fff;
}

/* Bootstrap visually-hidden-focusable links (ACC-005 P1: WCAG AA contrast) */
a.visually-hidden-focusable,
a.visually-hidden-focusable:link,
a.visually-hidden-focusable:visited {
    color: #0958b3; /* 5.0:1 contrast on #f8f9fa - WCAG AA compliant */
}

a.visually-hidden-focusable:hover,
a.visually-hidden-focusable:focus {
    color: #073d7a; /* Even darker for hover/focus */
}

/* ===== Public Header ===== */
/* RES-H-017 P2: Uses --public-header-height from variables.css */
.public-header {
    background-color: var(--header-bg, var(--white));
    min-height: var(--public-header-height);
    position: sticky;
    top: 0;
    transition: box-shadow var(--transition-base);
    z-index: var(--z-fixed);
}

.public-header.scrolled {
    box-shadow: var(--shadow);
}

.public-header .navbar {
    padding: var(--spacing-md) 0;
    position: relative;  /* Create stacking context for proper z-index stacking */
    z-index: inherit;  /* Inherit parent header's z-index (1030) for consistent stacking */
}

.public-header .navbar-brand {
    align-items: center;
    color: var(--brand-color, var(--primary-color-accessible));  /* WCAG AA compliant */
    display: flex;
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    gap: var(--spacing-sm);
    text-decoration: none;
}

.public-header .brand-logo {
    height: calc(var(--public-header-height) - 24px);
    width: auto;
}

.public-header .nav-link {
    align-items: center;
    color: var(--nav-link-color, var(--gray-700));
    display: inline-flex;
    font-weight: var(--font-weight-medium);
    min-height: 44px; /* WCAG 2.5.5 - touch target minimum */
    padding: var(--spacing-sm) var(--spacing-md) !important;
    transition: color var(--transition-fast);
}

.public-header .nav-link:hover,
.public-header .nav-link:focus {
    background-color: rgba(0, 0, 0, 0.05); /* RES-028 P2: Background highlight for touch users to see selected link */
    border-radius: var(--border-radius-sm);
    color: var(--nav-link-hover-color, var(--primary-color));
}

/* RES-028 P2: Dark mode hover background */
[data-theme="dark"] .public-header .nav-link:hover,
[data-theme="dark"] .public-header .nav-link:focus {
    background-color: rgba(255, 255, 255, 0.1);
}

/* ===== Hero Section ===== */
.hero-section {
    background: var(--hero-bg, linear-gradient(135deg, var(--primary-lightest) 0%, var(--white) 100%));
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
    padding: var(--spacing-3xl) 0;
    text-align: center;
}

/* Hero text backdrop — hardcoded dark overlay for legibility across all hero images.
 * Not CSS variables: hero images are always dark regardless of color scheme. */
.hero-section .container {
    -webkit-backdrop-filter: blur(6px);
    backdrop-filter: blur(6px);
    background: rgba(0, 0, 0, 0.50);
    border: none;
    border-radius: 0.75rem;
    box-shadow: none;
    padding: 2rem;
}

.hero-section h1 {
    color: var(--hero-title-color, var(--gray-900));
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-md);
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.5);
}

.hero-section .lead {
    color: var(--hero-subtitle-color, var(--text-muted-accessible));
    font-size: clamp(1.125rem, 2vw, 1.5rem);
    margin: 0 auto var(--spacing-xl);
    max-width: 800px;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.5);
}

.hero-section p:not(.lead) {
    color: var(--hero-description-color);
    margin: 0 auto var(--spacing-xl);
    max-width: 800px;
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.8);
}

/* Mobile hero adjustments */
@media (width <= 767.98px) {
    .hero-section {
        background-position: center;
        min-height: 50vh;
    }
}

.hero-section .btn-primary {
    font-size: var(--font-size-lg);
    padding: var(--spacing-md) var(--spacing-xl);
}

/* Hero outline button: always white text/border on dark overlay — never inherits theme color */
.hero-section .btn-outline-light {
    border-color: #fff;
    color: #fff;
}

.hero-section .btn-outline-light:hover,
.hero-section .btn-outline-light:focus {
    background-color: rgba(255, 255, 255, 0.15);
    border-color: #fff;
    color: #fff;
    text-decoration: underline;
}

/* ===== Content Sections ===== */
.content-section {
    padding: var(--spacing-3xl) 0;
}

.content-section:nth-child(even) {
    background-color: var(--section-alt-bg, var(--gray-100));
}

.section-header {
    margin-bottom: var(--spacing-2xl);
    text-align: center;
}

.section-header h2 {
    color: var(--section-title-color, var(--gray-900));
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-sm);
}

.section-header .lead {
    color: var(--section-subtitle-color, var(--text-muted-accessible));
    margin: 0 auto;
    max-width: 700px;
}

/* ===== Service Cards ===== */
.service-card {
    background: var(--card-bg, var(--white));
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
    height: 100%;
    padding: var(--spacing-xl);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

/* Service card hover - only on devices with hover capability (RES-019) */
@media (hover: hover) {
    .service-card:hover {
        box-shadow: var(--shadow);
        transform: translateY(-2px);
    }
}

.service-card .card-icon {
    color: var(--card-icon-color, var(--primary-color));
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
}

.service-card h3 {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-sm);
}

.service-card p {
    color: var(--text-muted, var(--gray-700));
    margin-bottom: 0;
}

/* Service cards inside links need explicit text colors */
a .service-card,
a.text-decoration-none .service-card {
    color: var(--text-color, var(--gray-900));
}

a .service-card h3,
a.text-decoration-none .service-card h3 {
    color: var(--heading-color, var(--gray-900));
}

a .service-card p,
a.text-decoration-none .service-card p {
    color: var(--text-muted, var(--gray-700));
}

/* ===== Treatment Cards (MedSpa service sub-pages) ===== */
/* VIS-P01: Styling for .treatment-card elements - matches .service-card hover/transition pattern */
.treatment-card {
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

@media (hover: hover) {
    .treatment-card:hover {
        box-shadow: var(--shadow);
        transform: translateY(-2px);
    }
}

.treatment-card h3, .treatment-card h4 {
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-sm);
}

/* ===== Benefit Items ===== */
/* VIS-P02: Horizontal icon+text layout for benefits sections */
.benefit-item {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

/* ===== Feature List ===== */
.feature-item {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

/* VIS-D03: Standalone .feature-icon base styles (used by Interabet services, about, etc.) */
.feature-icon {
    align-items: center;
    background: var(--feature-icon-bg, var(--primary-lightest));
    border-radius: var(--border-radius);
    color: var(--feature-icon-color, var(--primary-color));
    display: flex;
    flex-shrink: 0;
    font-size: 1.25rem;
    height: var(--spacing-2xl); /* 48px - UX-007 */
    justify-content: center;
    width: var(--spacing-2xl); /* 48px - UX-007 */
}

.feature-item h4 {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-xs);
}

.feature-item p {
    color: var(--text-muted, var(--gray-700));
    margin-bottom: 0;
}

/* ===== CTA Section ===== */
.cta-section {
    background-color: var(--primary-color);
    background-image: var(--cta-bg, none);
    color: var(--cta-text-color, var(--white));
    padding: var(--spacing-3xl) 0;
    text-align: center;
}

.cta-section h2 {
    color: inherit;
    margin-bottom: var(--spacing-md);
}

.cta-section p {
    color: var(--cta-text-color, var(--white));
    margin: 0 auto var(--spacing-xl);
    max-width: 600px;
}

.cta-section .btn {
    background: var(--cta-btn-bg, var(--white));
    border: 0;
    color: var(--cta-btn-color, var(--primary-color));
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    padding: var(--spacing-md) var(--spacing-xl);
}

.cta-section .btn:hover {
    background: var(--cta-btn-hover-bg, var(--gray-100));
}

/* Ensure outline-light buttons meet WCAG AA contrast on colored backgrounds */
.cta-section .btn-outline-light {
    border-color: #fff;
    color: #fff;
}

.cta-section .btn-outline-light:hover,
.cta-section .btn-outline-light:focus {
    background-color: #fff;
    border-color: #fff;
    color: var(--primary-color);
}

/* ===== Scheduling Widget Placeholder ===== */
.scheduling-widget {
    background: var(--widget-bg, var(--gray-100));
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-2xl);
    text-align: center;
}

.scheduling-widget h3 {
    margin-bottom: var(--spacing-md);
}

/* ===== Public Footer ===== */
.public-footer {
    background: var(--footer-bg, var(--gray-900));
    color: var(--footer-text-color, var(--gray-300));
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
}

.public-footer .footer-brand {
    color: var(--footer-brand-color, var(--white));
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-sm);
}

.public-footer .footer-tagline {
    color: var(--footer-tagline-color, var(--gray-400));
    font-style: italic;
    margin-bottom: var(--spacing-md);
}

.public-footer .footer-address {
    font-style: normal;
    line-height: var(--line-height-loose);
}

.public-footer .footer-heading {
    color: var(--footer-heading-color, var(--white));
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
}

.public-footer .footer-links {
    padding: 0;
}

.public-footer .footer-links li {
    margin-bottom: var(--spacing-sm);
}

.public-footer .footer-links a {
    color: var(--footer-link-color, var(--gray-400)) !important;
    text-decoration: none;
    transition: color var(--transition-fast);
}

.public-footer .footer-links a:hover,
.public-footer .footer-links a:focus {
    color: var(--footer-link-hover-color, var(--white));
}

.public-footer .footer-divider {
    border-color: var(--footer-divider-color, var(--gray-700));
    margin: var(--spacing-xl) 0 var(--spacing-md);
}

.public-footer .footer-copyright {
    color: var(--footer-copyright-color, var(--gray-500));
    font-size: var(--font-size-sm);
}

/* RES-046 P1: Footer overflow protection for very small screens (320px) */
@media (width <= 319.98px) {
    .public-footer {
        overflow-x: hidden;  /* Prevent horizontal overflow */
        padding: var(--spacing-xl) var(--spacing-sm) var(--spacing-md);  /* Reduce padding */
    }

    .public-footer .footer-brand,
    .public-footer .footer-heading {
        font-size: var(--font-size-base);  /* Reduce heading sizes */
    }

    .public-footer .footer-links,
    .public-footer .footer-address {
        font-size: var(--font-size-sm);  /* Reduce body text */
        word-break: break-word;  /* Prevent long words from overflowing */
    }
}

/* ===== Compliance/Legal Pages ===== */
.legal-page {
    padding: var(--spacing-2xl) 0 var(--spacing-3xl);
}

.legal-page h1 {
    margin-bottom: var(--spacing-lg);
}

.legal-page .effective-date {
    color: var(--gray-700);
    font-style: italic;
    margin-bottom: var(--spacing-xl);
}

.legal-page h2 {
    border-bottom: 1px solid var(--border-color);
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-md);
    margin-top: var(--spacing-xl);
    padding-bottom: var(--spacing-sm);
}

.legal-page h3 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-sm);
    margin-top: var(--spacing-lg);
}

.legal-page ul,
.legal-page ol {
    margin-bottom: var(--spacing-md);
}

.legal-page li {
    margin-bottom: var(--spacing-sm);
}

.legal-page .contact-box {
    background: var(--gray-100);
    border-radius: var(--border-radius);
    margin-top: var(--spacing-xl);
    padding: var(--spacing-lg);
}

/* ===== Responsive Adjustments ===== */
@media (width <= 991.98px) {
    .hero-section {
        padding: var(--spacing-2xl) 0;
    }

    .content-section {
        padding: var(--spacing-2xl) 0;
    }

    /* RES-B-015: Add max-height to prevent navbar from covering entire viewport on mobile */
    .public-header .navbar-collapse {
        border-top: 1px solid var(--border-color);
        margin-top: var(--spacing-md);
        max-height: 70vh;
        overflow-y: auto;
        padding: var(--spacing-md) 0;
    }
}

@media (width <= 575.98px) {
    .service-card {
        padding: var(--spacing-lg);
    }

    .feature-item {
        flex-direction: column;
        text-align: center;
    }

    .feature-icon {
        margin: 0 auto;
    }
}