/* ========================================
 * Charter App
 * File: charter_app/static/css/udk_public_shell.css
 * Purpose: Share the UDK-branded public page shell.
 * Scope: Provide one reusable banner, status band, colors, and card system for non-dashboard pages.
 * Owner: University of the Arts Berlin, Energy Monitoring Unit (emu)
 * Maintainer: Werner Kaul-Gothe
 * Updated: 2026-06-26
 * ======================================== */

:root {
    --udk-accent: #9d1b32;
    --udk-accent-dark: #771225;
    --udk-border: #d8d4cf;
    --udk-border-strong: #b8b0a8;
    --udk-text: #171717;
    --udk-muted: #5a5a5a;
    --udk-bg: #f6f2ed;
    --udk-panel: #ffffff;
    --udk-green: #2f7a4b;
    --udk-red: #b42318;
    --udk-header-offset: 164px;
}

html,
body {
    margin: 0;
    padding: 0;
    background: var(--udk-bg);
    color: var(--udk-text);
    font-family: "Helvetica Neue", Arial, sans-serif;
}

body.udk-public-page {
    background: var(--udk-bg);
}

.udk-public-page a {
    color: var(--udk-accent);
}

.udk-public-header-shell {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1100;
    background: var(--udk-bg);
    border-bottom: 1px solid var(--udk-border);
}

.udk-public-page-main {
    padding: 12px 24px 24px;
    box-sizing: border-box;
}

.udk-public-page-main-header {
    padding-bottom: 4px;
}

.udk-public-masthead {
    margin-bottom: 8px;
}

.udk-public-banner-image {
    display: block;
    width: auto;
    max-width: 100%;
    max-height: 60px;
    height: auto;
}

.udk-public-status-band {
    min-height: 42px;
    padding: 0 24px;
    box-sizing: border-box;
    background: var(--udk-green);
    color: #ffffff;
}

.udk-public-status-band-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    min-height: 42px;
}

.udk-public-status-band-side {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 18px;
    min-width: 0;
}

.udk-public-status-band-title {
    font-size: 1.2rem;
    font-weight: 400;
    line-height: 1.06;
}

.udk-public-status-band-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    justify-content: flex-end;
    min-width: 0;
}

.udk-public-status-band-label {
    font-size: 0.8rem;
    font-weight: 300;
    line-height: 1.2;
    white-space: nowrap;
}

.udk-public-status-band-action {
    color: #ffffff;
    text-decoration: none;
    font-size: 0.82rem;
    font-weight: 700;
    white-space: nowrap;
}

.udk-public-page-content {
    max-width: 1280px;
    margin: 0 auto;
    padding: calc(var(--udk-header-offset) + 8px) 24px 32px;
    box-sizing: border-box;
}

.udk-public-page-content-wide {
    max-width: none;
}

.udk-public-card {
    background: var(--udk-panel);
    border: 1px solid var(--udk-border);
    box-shadow: 0 10px 24px rgba(20, 20, 20, 0.05);
    padding: 24px;
}

.udk-public-card-compact {
    max-width: 460px;
}

.udk-public-card h1 {
    margin: 0 0 8px;
    font-size: 1.8rem;
    font-weight: 700;
    color: #3b3b3b;
}

.udk-public-card h2 {
    margin: 28px 0 12px;
    font-size: 1.15rem;
    font-weight: 700;
    color: #3b3b3b;
}

.udk-public-card p {
    margin: 0 0 14px;
    color: var(--udk-text);
    line-height: 1.55;
}

.udk-public-card label {
    display: block;
    margin: 14px 0 6px;
    font-weight: 600;
    color: #3b3b3b;
}

.udk-public-card input {
    width: 100%;
    box-sizing: border-box;
    padding: 10px 12px;
    border: 1px solid var(--udk-border-strong);
    border-radius: 10px;
    background: #ffffff;
    color: var(--udk-text);
}

.udk-public-card button {
    margin-top: 18px;
    width: 100%;
    padding: 11px 14px;
    border: 0;
    border-radius: 10px;
    background: var(--udk-accent);
    color: #ffffff;
    font-weight: 600;
    cursor: pointer;
}

.udk-public-card button:hover {
    background: var(--udk-accent-dark);
}

.udk-public-error {
    margin: 0 0 16px;
    color: var(--udk-red);
    font-weight: 600;
}

@media (max-width: 760px) {
    :root {
        --udk-header-offset: 186px;
    }

    .udk-public-page-main,
    .udk-public-status-band,
    .udk-public-page-content {
        padding-left: 16px;
        padding-right: 16px;
    }

    .udk-public-status-band-inner {
        align-items: flex-start;
        justify-content: flex-start;
        flex-direction: column;
        padding: 8px 0;
    }

    .udk-public-status-band-side {
        align-items: flex-start;
        justify-content: flex-start;
        flex-direction: column;
        gap: 6px;
    }

    .udk-public-status-band-meta {
        justify-content: flex-start;
    }

    .udk-public-card {
        padding: 20px;
    }
}