:root {
    --primary: #2c6e49;
    --primary-dark: #1f4d33;
    --bg: #f4f6f5;
    --card: #ffffff;
    --text: #222;
    --muted: #666;
    --border: #ddd;
    --danger: #b33;
    --warning: #b70;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
    background: var(--bg);
    color: var(--text);
}

header {
    background: var(--primary);
    color: #fff;
    padding: 1rem 1.5rem;
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    align-items: center;
    justify-content: space-between;
}

header h1 { font-size: 1.3rem; margin: 0; }

nav { display: flex; gap: 1rem; }

nav a, header a { color: #fff; text-decoration: none; font-weight: 600; }
nav a:hover { text-decoration: underline; }

.friend-picker { display: flex; gap: .5rem; align-items: center; }
.friend-picker label { font-size: .85rem; }

main { max-width: 960px; margin: 1.5rem auto; padding: 0 1rem; }

section {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 1rem 1.5rem;
    margin-bottom: 1.5rem;
}

h2 { margin-top: 0; color: var(--primary-dark); }

form { display: flex; flex-wrap: wrap; gap: 1rem; align-items: flex-end; }
form.inline { display: inline-flex; gap: .25rem; margin: 0; }

label { display: flex; flex-direction: column; gap: .25rem; font-size: .85rem; color: var(--muted); }

input, select {
    padding: .35rem .5rem;
    border: 1px solid var(--border);
    border-radius: 5px;
    font-size: .9rem;
    min-width: 140px;
}

button {
    background: var(--primary);
    color: #fff;
    border: none;
    border-radius: 5px;
    padding: .3rem .7rem;
    font-size: .85rem;
    cursor: pointer;
}

button:hover { background: var(--primary-dark); }
button.reject { background: var(--danger); }
button.reject:hover { background: #900; }
button.return { background: var(--warning); }
button.return:hover { background: #950; }

table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: .5rem .75rem; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-size: .8rem; text-transform: uppercase; }

.status {
    display: inline-block;
    padding: .15rem .6rem;
    border-radius: 999px;
    font-size: .8rem;
    font-weight: 600;
}

.status.beschikbaar { background: #e2f0e2; color: #2c6e49; }
.status.aangevraagd { background: #fdf3d7; color: var(--warning); }
.status.uitgeleend { background: #dbe7f5; color: #236; }
.status.teruggekeerd { background: #eee; color: var(--muted); }
.status.geweigerd { background: #f7dede; color: var(--danger); }
.status.niet-uitleenbaar { background: #efe3f3; color: #6b3fa0; }

.flash {
    max-width: 960px;
    margin: 1rem auto 0;
    padding: .75rem 1rem;
    border-radius: 6px;
}

.flash.success { background: #e2f0e2; color: #245; }
.flash.error { background: #f7dede; color: #822; }

footer { text-align: center; color: var(--muted); font-size: .85rem; padding: 1rem; }

.hint { color: var(--muted); font-size: .8rem; margin-top: .5rem; }

.tool-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1rem;
}

.tool-card {
    border: 1px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
    background: var(--card);
    display: flex;
    flex-direction: column;
}

.tool-image {
    height: 160px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #eef1f0;
}

.tool-image img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.no-image { font-size: 3rem; }

.tool-body { padding: .75rem 1rem; }
.tool-body h3 { margin: 0 0 .25rem; font-size: 1.05rem; }
.tool-body .meta { margin: .15rem 0; font-size: .85rem; color: var(--muted); }
.tool-body .owner { font-weight: 600; }

.tool-actions { display: flex; flex-direction: column; gap: .35rem; margin-top: .5rem; }
.tool-actions form { gap: .25rem; }
.url-form input { flex: 1; min-width: 0; }

.tool-links { margin-top: .5rem; border-top: 1px dashed var(--border); padding-top: .5rem; }
.tool-links h4 { margin: 0 0 .25rem; font-size: .85rem; color: var(--primary-dark); }
.tool-links ul { list-style: none; margin: 0; padding: 0; }
.tool-links li { display: flex; align-items: center; gap: .35rem; font-size: .9rem; padding: .1rem 0; }
.tool-links li form { margin-left: auto; }
.link-remove { background: none; border: none; color: var(--danger); cursor: pointer; padding: 0 .25rem; font-size: .9rem; }
.link-add { margin-top: .35rem; }
.link-add select { flex: 1; min-width: 0; }

.user-bar { display: flex; gap: .75rem; align-items: center; }
.login-box { max-width: 480px; margin: 0 auto; }

.flash.warning { background: #fdf3d7; color: #7a5301; }

section { overflow-x: auto; }

@media (max-width: 640px) {
    header { padding: .75rem 1rem; }
    nav { flex-wrap: wrap; gap: .6rem; }
    th, td { padding: .35rem .5rem; font-size: .85rem; }
    form { flex-direction: column; align-items: stretch; }
    input, select { min-width: 0; }
}

.upload-form input[type="file"] { flex: 1; min-width: 0; padding: .35rem; }

.view-toggle { display: flex; gap: .5rem; margin-bottom: 1rem; }
.view-toggle .toggle {
    padding: .25rem .7rem;
    border: 1px solid var(--border);
    border-radius: 999px;
    text-decoration: none;
    color: var(--muted);
    font-size: .8rem;
}
.view-toggle .toggle.active { background: var(--primary); border-color: var(--primary); color: #fff; }
.tool-list th a { text-decoration: none; color: inherit; }


.manage-row { display: flex; gap: .5rem; align-items: center; margin-bottom: .35rem; flex-wrap: wrap; }

.button-link {
    display: inline-block;
    background: var(--primary);
    color: #fff;
    border: none;
    border-radius: 5px;
    padding: .3rem .7rem;
    font-size: .85rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    white-space: nowrap;
}
.button-link:hover { background: var(--primary-dark); }

/* Donker thema: te schakelen via de knop in de header of de
   systeeminstelling; de voorkeur wordt in de browser onthouden. */
html.dark {
    --primary: #4a9d6f;
    --primary-dark: #3e8e5f;
    --bg: #14181a;
    --card: #1e2427;
    --text: #e4e7e6;
    --muted: #9aa5a3;
    --border: #39424a;
    --danger: #e06c75;
    --warning: #d9a35a;
}

html.dark body { color: var(--text); }
html.dark .tool-image { background: #262d31; }
html.dark .flash.success { background: #1d3328; color: #9fd4b4; }
html.dark .flash.error { background: #3a2226; color: #f0a3a3; }
html.dark .flash.warning { background: #3a3222; color: #e8c98a; }
html.dark .status.beschikbaar { background: #1d3328; color: #9fd4b4; }
html.dark .status.aangevraagd { background: #3a3222; color: #e8c98a; }
html.dark .status.uitgeleend { background: #22303f; color: #a3c4f0; }
html.dark .status.teruggekeerd { background: #2b3236; color: #b9c2c0; }
html.dark .status.geweigerd { background: #3a2226; color: #f0a3a3; }
html.dark .status.niet-uitleenbaar { background: #32253f; color: #c9a8ec; }
html.dark .view-toggle .toggle { background: transparent; color: var(--muted); }
html.dark .view-toggle .toggle.active { background: var(--primary); color: #fff; }
html.dark .link-remove { color: var(--danger); }

.theme-toggle {
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: .25rem .55rem;
    font-size: 1rem;
    cursor: pointer;
}

.circle-card { border: 1px solid var(--border); border-radius: 8px; padding: 1rem 1.25rem; margin-bottom: 1rem; }
.circle-card h3 { margin: 0 0 .5rem; color: var(--primary-dark); }
.member-list { list-style: none; margin: 0 0 .5rem; padding: 0; }
.member-list li { display: flex; align-items: center; gap: .5rem; padding: .2rem 0; }
.member-list li form { margin-left: auto; }

.reason-input { min-width: 120px; padding: .35rem .5rem; border: 1px solid var(--border); border-radius: 5px; }

.stat-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 1rem; }
.stat-card {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 1rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: .25rem;
}
.stat-number { font-size: 2rem; font-weight: 700; color: var(--primary); }
.stat-label { color: var(--muted); font-size: .85rem; }

.tool-detail { display: flex; gap: 1.5rem; flex-wrap: wrap; }
.tool-detail-image { flex: 0 0 260px; height: 260px; display: flex; align-items: center; justify-content: center; background: #eef1f0; border-radius: 8px; overflow: hidden; }
html.dark .tool-detail-image { background: #262d31; }
.tool-detail-image img { max-width: 100%; max-height: 100%; object-fit: contain; }
.tool-detail-image .no-image { font-size: 4rem; }
.tool-detail-body { flex: 1; min-width: 240px; }
.tool-title-link { color: inherit; text-decoration: none; }
.tool-title-link:hover { color: var(--primary); text-decoration: underline; }
.tool-image a { display: contents; }

.filter-form { margin-bottom: 1rem; }

.profile-link { color: #fff; text-decoration: none; font-weight: 600; }
.profile-link:hover { text-decoration: underline; }

.thumb-cell { width: 56px; }
.thumb { width: 48px; height: 48px; object-fit: contain; border-radius: 6px; display: block; }
.thumb-placeholder { font-size: 1.6rem; }

.bell-link { position: relative; color: #fff; text-decoration: none; font-size: 1.05rem; }
.bell-count {
    position: absolute; top: -6px; right: -10px;
    background: var(--danger); color: #fff; border-radius: 999px;
    font-size: .7rem; font-weight: 700; padding: .05rem .35rem;
}
.notif-unread { font-weight: 700; }
.notif-read { opacity: .6; }
.notif-type { display: inline-block; min-width: 90px; }

.combi-option { display: flex; align-items: center; gap: .4rem; font-size: .9rem; }

.loan-actions { display: flex; gap: .5rem; margin: .5rem 0; }

.pagination { display: flex; gap: 1rem; align-items: center; margin: 1rem 0; }
.pagination a { text-decoration: none; }