/**
 * CARING — Public SPA Shell Styles
 *
 * @layer cascade: reset (mpa-layout.css) < shell < pages
 * Uses CSS @layer for cascade control, Container Queries for responsive components,
 * Scroll-driven Animations for header effects.
 */

/* ═══════════════════════════════════════════════════════════════════════════
   Layer Definitions
   ═══════════════════════════════════════════════════════════════════════════ */

@layer shell, pages;

/* ═══════════════════════════════════════════════════════════════════════════
   Shell Layout
   ═══════════════════════════════════════════════════════════════════════════ */

@layer shell {
    .caring-public {
        display: flex;
        flex-direction: column;
        min-height: 100vh;
    }

    /* ── Header ─────────────────────────────────────────────────────── */

    .caring-public__header {
        position: sticky;
        top: 0;
        z-index: 1000;
        background: rgba(255, 255, 255, 0.85);
        backdrop-filter: blur(20px) saturate(1.2);
        -webkit-backdrop-filter: blur(20px) saturate(1.2);
        border-bottom: 1px solid rgba(185, 165, 144, 0.12);
        height: var(--mpa-header-height);
        transition: box-shadow 0.3s ease, background 0.3s ease, border-color 0.3s ease;
    }

    .caring-public__header--scrolled {
        box-shadow: 0 1px 24px rgba(54, 48, 42, 0.08), 0 1px 2px rgba(54, 48, 42, 0.04);
        background: rgba(255, 255, 255, 0.95);
        border-color: rgba(185, 165, 144, 0.2);
    }

    /* Scroll-driven animation: header shadow on scroll */
    @supports (animation-timeline: scroll()) {
        .caring-public__header {
            animation: header-shadow linear both;
            animation-timeline: scroll();
            animation-range: 0px 100px;
        }

        @keyframes header-shadow {
            to {
                box-shadow: 0 1px 24px rgba(54, 48, 42, 0.08), 0 1px 2px rgba(54, 48, 42, 0.04);
                background: rgba(255, 255, 255, 0.95);
                border-color: rgba(185, 165, 144, 0.2);
            }
        }
    }

    .caring-public__header-inner {
        display: flex;
        align-items: center;
        gap: 1rem;
        padding: 0 2rem;
        max-width: 1400px;
        margin: 0 auto;
        height: 100%;
    }

    /* Logo */
    .caring-public__logo {
        display: flex;
        align-items: center;
        gap: 0.625rem;
        text-decoration: none;
        flex-shrink: 0;
        margin-right: 0.5rem;
    }

    .caring-public__logo-icon {
        width: 32px;
        height: 32px;
        flex-shrink: 0;
        filter: drop-shadow(0 1px 2px rgba(139, 115, 85, 0.2));
        transition: transform 0.2s ease;
    }

    .caring-public__logo:hover .caring-public__logo-icon {
        transform: scale(1.05);
    }

    .caring-public__logo-text {
        font-size: 1.25rem;
        font-weight: 800;
        letter-spacing: -0.02em;
        background: linear-gradient(135deg, var(--accent-dark) 0%, var(--accent-light) 100%);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
    }

    /* Navigation — Mega Menu */
    .caring-public__nav {
        display: flex;
        align-items: center;
        gap: 0.25rem;
        flex: 1;
        justify-content: center;
    }

    /* Nav group (dropdown container) */
    .caring-public__nav-group {
        position: relative;
    }

    /* Dropdown trigger button */
    .caring-public__nav-trigger {
        display: inline-flex;
        align-items: center;
        gap: 0.25rem;
        padding: 0.5rem 0.875rem;
        border: none;
        background: none;
        color: var(--text-primary);
        font-weight: 500;
        font-size: 0.875rem;
        cursor: pointer;
        border-radius: 100px;
        transition: background 0.2s ease, color 0.2s ease;
        white-space: nowrap;
        font-family: inherit;
    }

    .caring-public__nav-trigger:hover,
    .caring-public__nav-group.is-open .caring-public__nav-trigger {
        background: var(--bg-primary);
        color: var(--text-dark);
    }

    .caring-public__nav-trigger.is-active {
        color: var(--accent-dark);
        font-weight: 600;
    }

    .caring-public__nav-chevron {
        transition: transform 0.2s ease;
        opacity: 0.5;
        flex-shrink: 0;
    }

    .caring-public__nav-group.is-open .caring-public__nav-chevron {
        transform: rotate(180deg);
        opacity: 0.8;
    }

    /* Mega dropdown panel */
    .caring-public__mega-panel {
        display: none;
        position: absolute;
        top: calc(100% + 0.5rem);
        left: 50%;
        transform: translateX(-50%);
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(24px) saturate(1.2);
        -webkit-backdrop-filter: blur(24px) saturate(1.2);
        border: 1px solid rgba(185, 165, 144, 0.15);
        border-radius: 1rem;
        box-shadow:
            0 8px 32px rgba(54, 48, 42, 0.08),
            0 2px 8px rgba(54, 48, 42, 0.04);
        padding: 0.75rem;
        z-index: 1001;
        opacity: 0;
        transform-origin: top center;
    }

    .caring-public__nav-group.is-open .caring-public__mega-panel {
        display: block;
        animation: caring-mega-enter 0.2s ease forwards;
    }

    @keyframes caring-mega-enter {
        from {
            opacity: 0;
            transform: translateX(-50%) translateY(-6px);
        }
        to {
            opacity: 1;
            transform: translateX(-50%) translateY(0);
        }
    }

    /* Panel grid layouts */
    .caring-public__mega-grid {
        display: grid;
        gap: 0.25rem;
    }

    .caring-public__mega-grid--services {
        grid-template-columns: 1fr 1fr;
        width: 480px;
    }

    .caring-public__mega-grid--tools {
        grid-template-columns: 1fr;
        width: 320px;
    }

    .caring-public__mega-grid--resources {
        grid-template-columns: 1fr;
        width: 300px;
    }

    /* Individual mega menu item */
    .caring-public__mega-item {
        display: flex;
        align-items: flex-start;
        gap: 0.75rem;
        padding: 0.75rem;
        border-radius: 0.75rem;
        text-decoration: none;
        color: var(--text-primary);
        transition: background 0.15s ease;
    }

    .caring-public__mega-item:hover {
        background: var(--bg-primary);
    }

    .caring-public__mega-item[aria-current="page"] {
        background: var(--bg-secondary);
    }

    .caring-public__mega-icon {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 36px;
        height: 36px;
        border-radius: 0.625rem;
        background: linear-gradient(135deg, rgba(185, 165, 144, 0.15) 0%, rgba(185, 165, 144, 0.06) 100%);
        color: var(--accent-dark);
        flex-shrink: 0;
    }

    .caring-public__mega-icon svg {
        width: 18px;
        height: 18px;
    }

    .caring-public__mega-text {
        display: flex;
        flex-direction: column;
        gap: 0.125rem;
        min-width: 0;
    }

    .caring-public__mega-label {
        font-weight: 600;
        font-size: 0.8125rem;
        color: var(--text-dark);
        line-height: 1.3;
    }

    .caring-public__mega-desc {
        font-size: 0.75rem;
        color: var(--text-secondary, #8a8078);
        line-height: 1.4;
    }

    /* Auth actions */
    .caring-public__actions {
        display: flex;
        align-items: center;
        gap: 0.5rem;
        flex-shrink: 0;
    }

    .caring-public__btn {
        display: inline-flex;
        align-items: center;
        padding: 0.5rem 1.125rem;
        border-radius: 100px;
        font-size: 0.8125rem;
        font-weight: 600;
        text-decoration: none;
        cursor: pointer;
        transition: all 0.2s ease;
        border: none;
        white-space: nowrap;
    }

    .caring-public__btn--outline {
        background: transparent;
        color: var(--text-primary);
        border: 1px solid rgba(185, 165, 144, 0.25);
    }

    .caring-public__btn--outline:hover {
        background: var(--bg-primary);
        border-color: rgba(185, 165, 144, 0.4);
        color: var(--text-dark);
    }

    .caring-public__btn--primary {
        background: linear-gradient(135deg, var(--accent-light) 0%, #8B7355 100%);
        color: var(--white);
        box-shadow: 0 1px 3px rgba(139, 115, 85, 0.25);
    }

    .caring-public__btn--primary:hover {
        box-shadow: 0 4px 12px rgba(139, 115, 85, 0.3);
        transform: translateY(-1px);
    }

    /* Logged-in user */
    .caring-public__user {
        display: flex;
        align-items: center;
        gap: 0.5rem;
        cursor: pointer;
        padding: 0.25rem 0.5rem 0.25rem 0.25rem;
        border-radius: 100px;
        transition: background 0.15s ease;
    }

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

    .caring-public__avatar {
        width: 34px;
        height: 34px;
        border-radius: 50%;
        background: linear-gradient(135deg, var(--accent-light), #8B7355);
        display: flex;
        align-items: center;
        justify-content: center;
        color: var(--white);
        font-weight: 600;
        font-size: 0.8125rem;
        box-shadow: 0 1px 3px rgba(139, 115, 85, 0.2);
    }

    .caring-public__user-name {
        font-weight: 600;
        font-size: 0.8125rem;
        color: var(--text-dark);
    }

    /* Hamburger (mobile) */
    .caring-public__hamburger {
        display: none;
        padding: 0.5rem;
        border: none;
        background: none;
        color: var(--text-primary);
        cursor: pointer;
        border-radius: 0.5rem;
        transition: background 0.15s;
    }

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

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

    /* ── Content Area ───────────────────────────────────────────────── */

    .caring-public__content {
        flex: 1;
        container-type: inline-size;
        container-name: public-content;
    }

    /* ── View Transition names ──────────────────────────────────────── */

    .caring-public__header {
        view-transition-name: public-header;
    }

    .caring-public__content {
        view-transition-name: public-content;
    }

    /* ── Footer ─────────────────────────────────────────────────────── */

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

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

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

    .caring-public__footer-section p {
        font-size: 0.875rem;
        line-height: 1.6;
    }

    .caring-public__footer-section ul {
        list-style: none;
        margin: 0;
        padding: 0;
    }

    .caring-public__footer-section li {
        font-size: 0.875rem;
        margin-bottom: 0.375rem;
    }

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

    .caring-public__footer-section a:hover {
        color: var(--white);
    }

    .caring-public__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-public__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-slide-down 200ms ease;
    }

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

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

    /* ── Page Loading State ─────────────────────────────────────────── */

    .caring-public__loading {
        display: flex;
        align-items: center;
        justify-content: center;
        min-height: 400px;
        color: var(--text-primary);
        font-size: 0.875rem;
    }

    .caring-public__loading-spinner {
        width: 32px;
        height: 32px;
        border: 3px solid var(--bg-secondary);
        border-top-color: var(--accent-light);
        border-radius: 50%;
        animation: caring-spin 0.8s linear infinite;
        margin-right: 0.75rem;
    }

    @keyframes caring-spin {
        to { transform: rotate(360deg); }
    }

    /* ── Error State ────────────────────────────────────────────────── */

    .caring-public__error {
        text-align: center;
        padding: 4rem 2rem;
        max-width: 600px;
        margin: 0 auto;
    }

    .caring-public__error h2 {
        color: var(--text-dark);
        margin-bottom: 0.5rem;
    }

    .caring-public__error p {
        color: var(--text-primary);
        margin-bottom: 1.5rem;
    }

    /* ── View Transition Animations ─────────────────────────────────── */

    ::view-transition-old(public-content) {
        animation: fade-out 150ms ease-out;
    }

    ::view-transition-new(public-content) {
        animation: fade-in 200ms ease-in 100ms both;
    }

    @keyframes fade-out {
        from { opacity: 1; transform: translateY(0); }
        to   { opacity: 0; transform: translateY(-8px); }
    }

    @keyframes fade-in {
        from { opacity: 0; transform: translateY(8px); }
        to   { opacity: 1; transform: translateY(0); }
    }

    /* ── Responsive ─────────────────────────────────────────────────── */

    @media (max-width: 860px) {
        .caring-public__header-inner {
            padding: 0 1rem;
        }

        .caring-public__hamburger {
            display: flex;
        }

        /* Mobile: full-width slide-down nav */
        .caring-public__nav {
            display: none;
            position: absolute;
            top: var(--mpa-header-height);
            left: 0;
            right: 0;
            background: rgba(255, 255, 255, 0.98);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            flex-direction: column;
            padding: 0.75rem;
            box-shadow: 0 8px 24px rgba(54, 48, 42, 0.1);
            border-bottom: 1px solid rgba(185, 165, 144, 0.15);
            z-index: 999;
            gap: 0;
            max-height: calc(100dvh - var(--mpa-header-height));
            overflow-y: auto;
            overscroll-behavior: contain;
        }

        .caring-public__nav.is-open {
            display: flex;
        }

        /* Mobile: nav groups become accordion */
        .caring-public__nav-group {
            width: 100%;
            border-bottom: 1px solid rgba(185, 165, 144, 0.08);
        }

        .caring-public__nav-group:last-of-type {
            border-bottom: none;
        }

        .caring-public__nav-trigger {
            width: 100%;
            justify-content: space-between;
            padding: 0.75rem 0.75rem;
            font-size: 0.875rem;
            font-weight: 600;
            border-radius: 0.5rem;
        }

        /* Mobile: dropdown panel is inline, not absolute */
        .caring-public__mega-panel {
            position: static;
            transform: none;
            border: none;
            box-shadow: none;
            backdrop-filter: none;
            -webkit-backdrop-filter: none;
            border-radius: 0;
            padding: 0 0 0.5rem;
            background: transparent;
        }

        .caring-public__nav-group.is-open .caring-public__mega-panel {
            animation: none;
        }

        .caring-public__mega-grid {
            grid-template-columns: 1fr !important;
            width: auto !important;
        }

        .caring-public__mega-item {
            padding: 0.625rem 0.75rem 0.625rem 1.25rem;
            border-radius: 0.5rem;
        }

        .caring-public__mega-desc {
            display: none;
        }

        .caring-public__mega-icon {
            width: 32px;
            height: 32px;
            border-radius: 0.5rem;
        }

        .caring-public__mega-icon svg {
            width: 16px;
            height: 16px;
        }

        .caring-public__actions {
            gap: 0.375rem;
        }

        .caring-public__user-name {
            display: none;
        }

        .caring-public__footer-inner {
            grid-template-columns: 1fr;
        }
    }
}

/* ═══════════════════════════════════════════════════════════════════════════
   Shared Page Utilities (available to all pages via @layer pages)
   ═══════════════════════════════════════════════════════════════════════════ */

@layer pages {
    /* Container query breakpoints for page content */
    @container public-content (max-width: 768px) {
        .caring-page-grid--2col {
            grid-template-columns: 1fr !important;
        }
    }

    @container public-content (max-width: 480px) {
        .caring-page-section {
            padding: 2rem 1rem !important;
        }
    }

    /* Shared fade-in animation for page sections */
    .caring-page-fade-in {
        opacity: 0;
        transform: translateY(24px);
        transition: opacity 0.6s ease, transform 0.6s ease;
    }

    .caring-page-fade-in.is-visible {
        opacity: 1;
        transform: translateY(0);
    }

    /* Page section base */
    .caring-page-section {
        padding: 4rem 2rem;
        max-width: 1400px;
        margin: 0 auto;
    }

    /* Section title */
    .caring-page-title {
        text-align: center;
        margin-bottom: 3rem;
    }

    .caring-page-title h2 {
        font-size: 2rem;
        color: var(--text-dark);
        margin-bottom: 0.5rem;
    }

    .caring-page-title p {
        font-size: 1.1rem;
        color: var(--text-primary);
    }
}