/**
 * CARING — Shared MPA Layout Styles
 *
 * "Write Once, Run Everywhere" — single source of truth for:
 * - CSS variables (CARING design tokens)
 * - Base reset (box-sizing, font, body)
 * - Shared header/footer component styles
 * - Offline indicator
 * - Responsive breakpoints
 *
 * Usage: <link rel="stylesheet" href="./shared/layout/mpa-layout.css">
 */

/* ═══════════════════════════════════════════════════════════════════════════
   CSS Variables — CARING Design Tokens (canonical, unprefixed)
   ═══════════════════════════════════════════════════════════════════════════ */

:root {
    /* Surfaces */
    --bg-primary: #F6F3EC;
    --bg-secondary: #ECE4DA;
    --white: #ffffff;

    /* Brand / Accent */
    --accent-light: #B9A590;
    --accent-dark: #574C3F;

    /* Text */
    --text-primary: #574C3F;
    --text-dark: #36302A;

    /* Shadows */
    --shadow: rgba(54, 48, 42, 0.1);
    --shadow-hover: rgba(54, 48, 42, 0.2);

    /* Semantic colors */
    --success: #22c55e;
    --warning: #f59e0b;
    --error: #ef4444;

    /* Extended palette */
    --blue: #3b82f6;
    --purple: #8b5cf6;
    --pink: #ec4899;
    --orange: #f97316;
    --teal: #14b8a6;
    --red: #ef4444;

    /* Layout */
    --mpa-header-height: 64px;
}

/* ═══════════════════════════════════════════════════════════════════════════
   Base Reset
   ═══════════════════════════════════════════════════════════════════════════ */

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

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

/* ═══════════════════════════════════════════════════════════════════════════
   Shared Header
   ═══════════════════════════════════════════════════════════════════════════ */

.caring-mpa-header {
    background: var(--white);
    box-shadow: 0 1px 8px var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
    height: var(--mpa-header-height);
}

.caring-mpa-header__inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 2rem;
    max-width: 1400px;
    margin: 0 auto;
    height: 100%;
}

/* Logo */
.caring-mpa-header__logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-dark);
    text-decoration: none;
    flex-shrink: 0;
}

.caring-mpa-header__logo-icon {
    width: 28px;
    height: 28px;
    flex-shrink: 0;
}

/* Navigation links */
.caring-mpa-header__nav {
    display: flex;
    gap: 0.25rem;
    list-style: none;
    margin: 0;
    padding: 0;
    align-items: center;
}

.caring-mpa-header__nav a {
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    font-size: 0.875rem;
    padding: 0.5rem 0.75rem;
    border-radius: 0.375rem;
    transition: background 0.15s, color 0.15s;
    position: relative;
    white-space: nowrap;
}

.caring-mpa-header__nav a:hover {
    background: var(--bg-primary);
    color: var(--text-dark);
}

.caring-mpa-header__nav a[aria-current="page"] {
    background: var(--bg-secondary);
    color: var(--text-dark);
    font-weight: 600;
}

/* Auth actions */
.caring-mpa-header__actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-shrink: 0;
}

.caring-mpa-header__btn {
    display: inline-flex;
    align-items: center;
    padding: 0.5rem 1rem;
    border-radius: 0.375rem;
    font-size: 0.8125rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.15s;
    border: none;
    white-space: nowrap;
}

.caring-mpa-header__btn--outline {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--bg-secondary);
}

.caring-mpa-header__btn--outline:hover {
    background: var(--bg-primary);
    border-color: var(--accent-light);
}

.caring-mpa-header__btn--primary {
    background: var(--accent-light);
    color: var(--white);
}

.caring-mpa-header__btn--primary:hover {
    background: var(--accent-dark);
}

/* Logged-in user display */
.caring-mpa-header__user {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
}

.caring-mpa-header__avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-light), var(--accent-dark));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-weight: 600;
    font-size: 0.875rem;
}

.caring-mpa-header__user-name {
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--text-dark);
}

/* ═══════════════════════════════════════════════════════════════════════════
   Shared Footer
   ═══════════════════════════════════════════════════════════════════════════ */

.caring-mpa-footer {
    background: var(--text-dark);
    color: rgba(255, 255, 255, 0.75);
    padding: 3rem 2rem 1.5rem;
    margin-top: auto;
}

.caring-mpa-footer__inner {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.caring-mpa-footer__section h3 {
    color: var(--white);
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.caring-mpa-footer__section p {
    font-size: 0.875rem;
    line-height: 1.6;
}

.caring-mpa-footer__section ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.caring-mpa-footer__section li {
    font-size: 0.875rem;
    margin-bottom: 0.375rem;
}

.caring-mpa-footer__section a {
    color: rgba(255, 255, 255, 0.75);
    text-decoration: none;
    transition: color 0.15s;
}

.caring-mpa-footer__section a:hover {
    color: var(--white);
}

.caring-mpa-footer__bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    margin-top: 2rem;
    padding-top: 1rem;
    text-align: center;
    font-size: 0.8125rem;
    color: rgba(255, 255, 255, 0.5);
    max-width: 1400px;
    margin-left: auto;
    margin-right: auto;
}

/* ═══════════════════════════════════════════════════════════════════════════
   Offline Indicator
   ═══════════════════════════════════════════════════════════════════════════ */

.caring-mpa-offline {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.375rem 1rem;
    background: var(--warning);
    color: #fff;
    font-size: 0.8125rem;
    font-weight: 500;
    position: sticky;
    top: var(--mpa-header-height);
    z-index: 999;
    animation: caring-mpa-slide-down 200ms ease;
}

.caring-mpa-offline[hidden] {
    display: none;
}

@keyframes caring-mpa-slide-down {
    from { transform: translateY(-100%); opacity: 0; }
    to   { transform: translateY(0);     opacity: 1; }
}

/* ═══════════════════════════════════════════════════════════════════════════
   Hamburger (mobile)
   ═══════════════════════════════════════════════════════════════════════════ */

.caring-mpa-header__hamburger {
    display: none;
    padding: 0.5rem;
    border: none;
    background: none;
    color: var(--text-primary);
    cursor: pointer;
    border-radius: 0.25rem;
}

.caring-mpa-header__hamburger:hover {
    background: var(--bg-primary);
}

.caring-mpa-header__hamburger svg {
    width: 20px;
    height: 20px;
}

/* ═══════════════════════════════════════════════════════════════════════════
   Responsive
   ═══════════════════════════════════════════════════════════════════════════ */

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

    .caring-mpa-header__hamburger {
        display: flex;
    }

    .caring-mpa-header__nav {
        display: none;
        position: absolute;
        top: var(--mpa-header-height);
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 0.5rem;
        box-shadow: 0 4px 12px var(--shadow);
        z-index: 999;
    }

    .caring-mpa-header__nav.is-open {
        display: flex;
    }

    .caring-mpa-header__nav a {
        padding: 0.75rem 1rem;
        width: 100%;
    }

    .caring-mpa-footer__inner {
        grid-template-columns: 1fr;
    }
}