:root {
    --bg: #f4f1ec;
    --panel: rgba(255,255,255,0.84);
    --text: #151515;
    --muted: #6b665f;
    --line: rgba(0,0,0,0.12);
    --shadow: 0 24px 60px rgba(0,0,0,0.10);
    --soft: rgba(255,255,255,0.62);
}
* { box-sizing: border-box; }
body {
    margin: 0;
    min-height: 100vh;
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    color: var(--text);
    background:
        radial-gradient(circle at top left, rgba(255,255,255,0.9), transparent 34rem),
        linear-gradient(135deg, #f8f6f2, var(--bg));
}
.shell {
    width: min(1180px, calc(100% - 32px));
    margin: 0 auto;
    padding: 48px 0;
}
.brand-card {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 22px;
    min-height: 300px;
    padding: 34px;
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 30px;
    box-shadow: var(--shadow);
    backdrop-filter: blur(16px);
}
.logo {
    width: 264px;
    height: 264px;
    object-fit: contain;
    mix-blend-mode: multiply;
}
.panel, .toolbar {
    margin-top: 18px;
    padding: 26px;
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 24px;
    box-shadow: 0 14px 36px rgba(0,0,0,0.07);
}
.toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 700;
}
h2 { margin: 0 0 8px; font-size: 1.35rem; }
p { margin: 0; color: var(--muted); line-height: 1.55; }
form { display: grid; gap: 16px; }
label { display: grid; gap: 8px; color: var(--muted); font-weight: 650; }
input[type="text"], input[type="password"], input[type="number"], input[type="file"] {
    width: 100%;
    border: 1px solid var(--line);
    background: rgba(255,255,255,0.82);
    border-radius: 16px;
    padding: 13px 15px;
    font-size: 1rem;
}
button, .download, .logout, .secondary-link {
    border: 0;
    border-radius: 999px;
    padding: 12px 18px;
    background: #171717;
    color: white;
    text-decoration: none;
    font-weight: 750;
    cursor: pointer;
    display: inline-flex;
    justify-content: center;
    align-items: center;
    white-space: nowrap;
}
button:hover, .download:hover, .logout:hover, .secondary-link:hover { opacity: 0.86; }
.secondary-link { background: rgba(0,0,0,0.08); color: var(--text); }
.danger { background: #8f1d1d; }
.alert { margin-top: 14px; padding: 14px 18px; border-radius: 18px; border: 1px solid var(--line); }
.alert.success { background: #ecf7ee; }
.alert.error { background: #fff0f0; }
.panel-heading {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    align-items: flex-start;
    margin-bottom: 20px;
}
.upload-form {
    grid-template-columns: 180px 1fr auto;
    align-items: end;
}
.folder-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(142px, 1fr));
    gap: 14px;
}
.folder-card {
    position: relative;
    min-height: 158px;
    overflow: hidden;
    border-radius: 20px;
    border: 1px solid var(--line);
    background: rgba(255,255,255,0.68);
    text-decoration: none;
    color: var(--text);
    box-shadow: 0 10px 24px rgba(0,0,0,0.06);
    transition: transform .16s ease, box-shadow .16s ease, border-color .16s ease;
}
.folder-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 16px 34px rgba(0,0,0,0.10);
}
.folder-card.active { border-color: rgba(0,0,0,0.46); }
.folder-card img {
    width: 100%;
    height: 110px;
    object-fit: cover;
    display: block;
}
.folder-placeholder {
    height: 110px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(255,255,255,0.88), rgba(0,0,0,0.045));
    color: rgba(0,0,0,0.56);
    font-size: 2.1rem;
    font-weight: 800;
    letter-spacing: -0.04em;
}
.folder-meta {
    display: grid;
    gap: 2px;
    padding: 12px;
}
.folder-meta strong { font-size: 0.95rem; }
.folder-meta span { color: var(--muted); font-size: 0.85rem; }
.empty { color: var(--muted); }
.file-list {
    display: grid;
    gap: 12px;
}
.file-card {
    display: grid;
    grid-template-columns: 86px 1fr auto;
    gap: 14px;
    align-items: center;
    padding: 12px;
    border-radius: 20px;
    border: 1px solid var(--line);
    background: rgba(255,255,255,0.62);
}
.file-preview {
    width: 86px;
    height: 68px;
    border-radius: 14px;
    overflow: hidden;
    background: rgba(0,0,0,0.06);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--muted);
    font-weight: 800;
    font-size: 0.82rem;
}
.file-preview img { width: 100%; height: 100%; object-fit: cover; display: block; }
.file-info { display: grid; gap: 6px; min-width: 0; }
.file-info strong { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.file-info span { color: var(--muted); font-size: 0.9rem; }
.file-actions { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.file-actions form { display: inline; }
@media (max-width: 860px) {
    .upload-form { grid-template-columns: 1fr; }
    .file-card { grid-template-columns: 70px 1fr; }
    .file-actions { grid-column: 1 / -1; }
    .file-preview { width: 70px; height: 60px; }
}
@media (max-width: 620px) {
    .shell { width: min(100% - 20px, 1180px); padding: 22px 0; }
    .brand-card { min-height: 210px; padding: 22px; }
    .logo { width: 176px; height: 176px; }
    .panel, .toolbar { padding: 20px; }
    .toolbar, .panel-heading { align-items: flex-start; gap: 12px; flex-direction: column; }
    .folder-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}


/* v10: losse actiekoppen en aparte uploadpagina */
.page-actions {
    position: fixed;
    top: 28px;
    right: 32px;
    z-index: 20;
    display: flex;
    gap: 10px;
    align-items: center;
}
.action-link {
    border: 0;
    border-radius: 999px;
    padding: 13px 20px;
    background: #171717;
    color: #fff;
    text-decoration: none;
    font-weight: 800;
    box-shadow: 0 10px 24px rgba(0,0,0,0.10);
}
.action-link:hover { opacity: .86; }
.toolbar, .upload-panel { display: none !important; }
.upload-page { margin-top: 18px; }
.with-actions { align-items: center; }
.scalable-grid {
    grid-template-columns: repeat(auto-fit, minmax(clamp(150px, 18vw, 230px), 1fr));
    gap: clamp(12px, 1.6vw, 22px);
}
.scalable-grid .folder-card {
    min-height: clamp(160px, 19vw, 230px);
}
.scalable-grid .folder-card img,
.scalable-grid .folder-placeholder {
    height: clamp(112px, 14vw, 170px);
}
.empty-state {
    display: grid;
    gap: 6px;
    padding: 22px;
    border: 1px dashed var(--line);
    border-radius: 18px;
    background: rgba(255,255,255,.55);
}
.empty-state strong { font-size: 1.05rem; }
@media (max-width: 620px) {
    .page-actions {
        position: static;
        width: min(100% - 20px, 1180px);
        margin: 16px auto 0;
        justify-content: flex-end;
    }
    .action-link { padding: 11px 15px; }
    .with-actions { align-items: flex-start; flex-direction: column; }
    .scalable-grid { grid-template-columns: repeat(auto-fit, minmax(130px, 1fr)); }
}

/* v11: vaste mapafbeelding per map */
.subsection-divider {
    height: 1px;
    margin: 24px 0;
    background: var(--line);
}
.cover-upload-form button {
    min-width: 190px;
}
.inline-cover-form {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 14px;
    align-items: end;
    margin: 0 0 18px;
    padding: 16px;
    border: 1px solid var(--line);
    border-radius: 18px;
    background: rgba(255,255,255,0.48);
}
.inline-cover-form button {
    min-width: 190px;
}
@media (max-width: 720px) {
    .inline-cover-form { grid-template-columns: 1fr; }
    .cover-upload-form button,
    .inline-cover-form button { width: 100%; }
}


/* v12: vierkante tegels, subtitel onder logo, knoppen hoger */
.shell.shell-auth {
    padding-top: 84px;
}
.brand-card {
    min-height: 256px;
}
.brand-stack {
    display: grid;
    justify-items: center;
    gap: 10px;
}
.brand-subtitle {
    font-size: 0.92rem;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--muted);
    font-weight: 700;
}
.page-actions {
    top: 16px;
    right: 28px;
}
.folder-grid.scalable-grid {
    grid-template-columns: repeat(auto-fill, 220px);
    justify-content: start;
    gap: 18px;
}
.folder-grid.scalable-grid .folder-card {
    width: 220px;
    min-height: 0;
    aspect-ratio: 1 / 1;
    display: flex;
    flex-direction: column;
}
.folder-grid.scalable-grid .folder-card img,
.folder-grid.scalable-grid .folder-placeholder {
    width: 100%;
    height: 0;
    padding-top: 68%;
    position: relative;
    flex: none;
}
.folder-grid.scalable-grid .folder-card img {
    padding-top: 0;
    height: calc(100% - 62px);
    flex: 1 1 auto;
}
.folder-grid.scalable-grid .folder-placeholder {
    height: calc(100% - 62px);
    padding-top: 0;
    flex: 1 1 auto;
}
.folder-grid.scalable-grid .folder-meta {
    min-height: 62px;
    padding: 12px;
    display: grid;
    align-content: center;
}
@media (max-width: 620px) {
    .shell.shell-auth {
        padding-top: 22px;
    }
    .page-actions {
        position: static;
        margin: 0 auto 12px;
        width: min(100% - 20px, 1180px);
    }
    .folder-grid.scalable-grid {
        grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    }
    .folder-grid.scalable-grid .folder-card {
        width: auto;
    }
}


/* v13: tegels 2x kleiner, afbeelding mee schalen, gecentreerd met max 8 per rij */
.folder-grid.scalable-grid {
    --tile-size: 110px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(var(--tile-size), var(--tile-size)));
    justify-content: center;
    gap: 14px;
    max-width: calc((var(--tile-size) * 8) + (14px * 7));
    margin-left: auto;
    margin-right: auto;
}
.folder-grid.scalable-grid .folder-card {
    width: var(--tile-size);
    height: var(--tile-size);
    min-height: 0;
    aspect-ratio: 1 / 1;
}
.folder-grid.scalable-grid .folder-card img,
.folder-grid.scalable-grid .folder-placeholder {
    height: 72px;
    min-height: 72px;
    max-height: 72px;
    padding-top: 0;
    object-fit: cover;
}
.folder-grid.scalable-grid .folder-meta {
    min-height: 38px;
    height: 38px;
    padding: 6px 8px;
    gap: 0;
}
.folder-grid.scalable-grid .folder-meta strong {
    font-size: 0.78rem;
    line-height: 1.05;
}
.folder-grid.scalable-grid .folder-meta span {
    font-size: 0.68rem;
    line-height: 1.05;
}
.folder-grid.scalable-grid .folder-placeholder {
    font-size: 1.35rem;
}
@media (max-width: 620px) {
    .folder-grid.scalable-grid {
        --tile-size: 96px;
        gap: 12px;
        max-width: 100%;
    }
    .folder-grid.scalable-grid .folder-card {
        width: var(--tile-size);
        height: var(--tile-size);
    }
    .folder-grid.scalable-grid .folder-card img,
    .folder-grid.scalable-grid .folder-placeholder {
        height: 62px;
        min-height: 62px;
        max-height: 62px;
    }
    .folder-grid.scalable-grid .folder-meta {
        min-height: 34px;
        height: 34px;
        padding: 5px 7px;
    }
    .folder-grid.scalable-grid .folder-meta strong { font-size: 0.72rem; }
    .folder-grid.scalable-grid .folder-meta span { font-size: 0.62rem; }
}


/* v14: mapnaam bewerken en automatische JPG/PNG-mapafbeelding */
.rename-folder-form {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 14px;
    align-items: end;
    margin: 0 0 18px;
    padding: 16px;
    border: 1px solid var(--line);
    border-radius: 18px;
    background: rgba(255,255,255,0.48);
}
.rename-folder-form button {
    min-width: 150px;
}
.folder-grid.scalable-grid .folder-card:not(:has(img)) .folder-placeholder {
    background: linear-gradient(135deg, rgba(255,255,255,0.9), rgba(0,0,0,0.035));
}
@media (max-width: 720px) {
    .rename-folder-form { grid-template-columns: 1fr; }
    .rename-folder-form button { width: 100%; }
}


/* v15: direct uploaden binnen geopende map */
.folder-upload-form {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 14px;
    align-items: end;
    margin: 0 0 18px;
    padding: 16px;
    border: 1px solid var(--line);
    border-radius: 18px;
    background: rgba(255,255,255,0.48);
}
.folder-upload-form button {
    min-width: 150px;
}
@media (max-width: 720px) {
    .folder-upload-form { grid-template-columns: 1fr; }
    .folder-upload-form button { width: 100%; }
}


/* v19: registratie op loginpagina en Raster-knop in hoofdacties */
.register-panel p {
    margin-bottom: 18px;
}
.register-form {
    grid-template-columns: repeat(3, 1fr) auto;
    align-items: end;
}
@media (max-width: 960px) {
    .register-form { grid-template-columns: 1fr; }
}
@media (max-width: 620px) {
    .page-actions { justify-content: center; flex-wrap: wrap; }
}


/* v20: registratie als aparte pagina */
.login-heading {
    align-items: center;
}
.login-heading h2 {
    margin-bottom: 0;
}
.register-page-panel p {
    margin-top: 4px;
}
.register-form-page {
    grid-template-columns: 1fr;
}
.register-form-page button {
    width: 100%;
}
@media (max-width: 720px) {
    .login-heading {
        align-items: flex-start;
        flex-direction: column;
    }
    .login-heading .secondary-link {
        width: 100%;
    }
}


/* v21: login- en registratieknop naast elkaar */
.login-button-row {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 12px;
    align-items: center;
}
.login-button-row button {
    width: 100%;
}
.login-button-row .register-link-button {
    min-width: 170px;
    height: 100%;
}
@media (max-width: 620px) {
    .login-button-row {
        grid-template-columns: 1fr;
    }
    .login-button-row .register-link-button {
        width: 100%;
        min-width: 0;
    }
}


/* v22: dagelijkse Bing-achtige achtergrond op login/registratiepagina */
body.login-bg-enabled {
    position: relative;
    background: #f4f1ec;
}
body.login-bg-enabled::before {
    content: "";
    position: fixed;
    inset: 0;
    z-index: -2;
    background-image: var(--daily-bg-image);
    background-size: cover;
    background-position: center center;
    background-repeat: no-repeat;
    opacity: 0;
    transform: scale(1.02);
    transition: opacity 600ms ease;
}
body.login-bg-enabled.daily-bg-loaded::before {
    opacity: 1;
}
body.login-bg-enabled::after {
    content: "";
    position: fixed;
    inset: 0;
    z-index: -1;
    background:
        radial-gradient(circle at top left, rgba(255,255,255,0.78), rgba(255,255,255,0.28) 42rem, rgba(255,255,255,0.18)),
        linear-gradient(135deg, rgba(248,246,242,0.88), rgba(244,241,236,0.70));
    pointer-events: none;
}
body.login-bg-enabled .brand-card,
body.login-bg-enabled .panel {
    background: rgba(255,255,255,0.82);
    backdrop-filter: blur(18px);
}


/* v26: dagelijkse achtergrond geldt voor alle pagina's */
body.login-bg-enabled {
    background-attachment: fixed;
}
body.login-bg-enabled .panel,
body.login-bg-enabled .brand-card {
    background: rgba(255,255,255,0.84);
}
body.login-bg-enabled .page-actions .action-link {
    box-shadow: 0 14px 32px rgba(0,0,0,0.14);
}


/* v29: Nieuwe Upload gebruikt automatisch de eerste vrije map */
.auto-folder-note {
    margin: 0 0 16px;
    color: var(--muted);
    font-weight: 650;
}
.upload-form-page.auto-folder-form {
    grid-template-columns: 1fr auto;
    align-items: end;
}
@media (max-width: 720px) {
    .upload-form-page.auto-folder-form {
        grid-template-columns: 1fr;
    }
}


/* v30: mapnaam direct bij nieuwe upload, registratiecode en ZIP-download */
.upload-form-page.auto-folder-form {
    grid-template-columns: 1fr 1fr auto;
}
.register-form-page label:first-of-type {
    margin-bottom: 2px;
}
.panel-heading.with-actions .secondary-link {
    align-self: flex-start;
}
@media (max-width: 860px) {
    .upload-form-page.auto-folder-form {
        grid-template-columns: 1fr;
    }
}


/* v35: RTV Meppel logo groter en scherper */
.brand-card.logo-only {
    min-height: 300px;
}
.logo {
    width: min(520px, 82vw) !important;
    height: auto !important;
    max-height: 170px !important;
    object-fit: contain !important;
    mix-blend-mode: normal !important;
}
.brand-stack {
    gap: 28px;
}
@media (max-width: 720px) {
    .brand-card.logo-only { min-height: 230px; }
    .logo { width: min(360px, 82vw) !important; max-height: 125px !important; }
}