/* ==========================================================================
   pictures.opre.de — Bilderdatenbank stylesheet
   Basis: opre.de Brand-CI (Marc Opre), übernommen von der Fotodatenbank,
   mobile-first, mit vergrößerter Basis-Schrift auf Smartphones für
   bessere Lesbarkeit beim Betrachten unterwegs.
   ========================================================================== */

:root {
    /* --- opre.de brand colors --- */
    --color-bg:           #121212;
    --color-bg-alt:       #1b1b1b;
    --color-surface:      #202020;
    --color-border:       #313131;
    --color-text:         #f1f1f1;
    --color-text-muted:   #a3a3a3;
    --color-accent:       #C48F56; /* opre.de brand gold/bronze */
    --color-accent-hover: #d9a86e;
    --color-danger:       #d6534a;
    --color-success:      #4caf7d;
    --color-info:         #4a90d6;

    --font-base: "Montserrat", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --font-heading: "Montserrat", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2.5rem;

    --radius: 6px;
    --shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
}

/* Basis-Schriftgröße: auf dem Handy bewusst größer als auf Desktop, da alle
   Abstände/Schriften unten in rem definiert sind und so automatisch mit
   skalieren (Lesbarkeit beim Betrachten von Fotos auf dem Smartphone). */
html { font-size: 17px; }
@media (min-width: 600px) { html { font-size: 16px; } }

* { box-sizing: border-box; }
.hidden { display: none !important; }

html, body {
    margin: 0;
    padding: 0;
    background: var(--color-bg);
    color: var(--color-text);
    font-family: var(--font-base);
    line-height: 1.5;
}

h1, h2, h3 {
    font-family: var(--font-heading);
    font-weight: 400;
    color: var(--color-text);
}

a {
    color: var(--color-accent);
    text-decoration: none;
}
a:hover { color: var(--color-accent-hover); }

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--space-lg) var(--space-md);
}
.container-narrow { max-width: 520px; }

/* ---------- Header / nav ---------- */
.site-header {
    background: var(--color-bg-alt);
    border-bottom: 1px solid var(--color-border);
}
.site-header-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--space-md);
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-sm);
}
.brand {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    color: var(--color-text);
    display: inline-flex;
    align-items: center;
}
.main-nav {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
    align-items: center;
}
.main-nav a { color: var(--color-text-muted); }
.main-nav a:hover { color: var(--color-accent); }
.logged-in-as { font-size: 0.85rem; color: var(--color-text-muted); }
.logged-in-as strong { color: var(--color-text); font-weight: 600; font-size: 1.2em; }

.site-footer {
    text-align: center;
    color: var(--color-text-muted);
    padding: var(--space-xl) var(--space-md);
    font-size: 0.85rem;
}

/* ---------- Login ---------- */
.page-login { display: flex; align-items: center; justify-content: center; min-height: 100vh; }
.login-wrap { width: 100%; max-width: 380px; padding: var(--space-md); }
.login-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: var(--space-xl);
    box-shadow: var(--shadow);
    text-align: center;
}
.login-card .form-stack { text-align: left; }

/* ---------- Forms ---------- */
.form-stack { display: flex; flex-direction: column; gap: var(--space-sm); }
.form-grid { display: grid; grid-template-columns: 1fr; gap: var(--space-sm) var(--space-md); }

label { font-size: 0.9rem; color: var(--color-text-muted); display: flex; flex-direction: column; gap: var(--space-xs); }

input[type="text"],
input[type="email"],
input[type="password"],
input[type="date"],
input[type="number"],
select,
textarea {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    color: var(--color-text);
    border-radius: var(--radius);
    padding: 0.6rem 0.7rem;
    font-size: 1rem;
    font-family: inherit;
}
textarea { min-height: 90px; resize: vertical; }

/* ---------- Buttons ---------- */
.btn {
    display: inline-block;
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    color: var(--color-text);
    padding: 0.6rem 1.1rem;
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 0.95rem;
}
.btn:hover { border-color: var(--color-accent); }
.btn-primary { background: var(--color-accent); border-color: var(--color-accent); color: #1a1a1a; font-weight: 600; }
.btn-primary:hover { background: var(--color-accent-hover); }
.btn-danger { color: var(--color-danger); border-color: var(--color-danger); }
.btn-small { padding: 0.35rem 0.75rem; font-size: 0.85rem; }

/* ---------- Alerts ---------- */
.alert { padding: var(--space-sm) var(--space-md); border-radius: var(--radius); margin-bottom: var(--space-md); font-size: 0.95rem; }
.alert-error { background: rgba(214, 83, 74, 0.15); border: 1px solid var(--color-danger); color: #f3b7b2; }
.alert-success { background: rgba(76, 175, 125, 0.15); border: 1px solid var(--color-success); color: #b9e6cd; }
.alert-info { background: rgba(74, 144, 214, 0.15); border: 1px solid var(--color-info); color: #b6d6f3; }

.empty-state { color: var(--color-text-muted); font-style: italic; }

/* ---------- Dashboard: Alben-Kacheln ---------- */
.album-grid { display: grid; grid-template-columns: 1fr; gap: var(--space-lg); }
.album-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    overflow: hidden;
    display: block;
    color: var(--color-text);
    transition: transform 0.15s ease, border-color 0.15s ease;
}
.album-card:hover { transform: translateY(-2px); border-color: var(--color-accent); }
.album-card-cover { aspect-ratio: 16 / 10; background: var(--color-bg-alt); overflow: hidden; }
.album-card-cover img { width: 100%; height: 100%; object-fit: cover; display: block; }
.album-card-body { padding: var(--space-md); }
.album-card-meta { color: var(--color-text-muted); font-size: 0.85rem; margin: 0.2rem 0; }

/* ---------- Foto-Grid (Gallery) ---------- */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-sm);
    margin: var(--space-lg) 0;
}
.gallery-item { display: flex; flex-direction: column; }
.gallery-thumb { cursor: pointer; aspect-ratio: 1 / 1; overflow: hidden; border-radius: var(--radius); background: var(--color-bg-alt); }
.gallery-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform 0.2s ease; }
.gallery-thumb:hover img { transform: scale(1.04); }
.gallery-item-caption { padding: var(--space-xs) 0; display: flex; flex-direction: column; gap: 0.2rem; }
.gallery-item-title { font-size: 0.9rem; font-weight: 600; color: var(--color-text); }
.gallery-item-meta { font-size: 0.8rem; color: var(--color-text-muted); }

/* ---------- Lightbox ---------- */
.lightbox {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.92);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    flex-direction: column;
}
.lightbox.hidden { display: none; }
.lightbox-image { max-width: 92vw; max-height: 78vh; object-fit: contain; border-radius: var(--radius); }
.lightbox-close, .lightbox-prev, .lightbox-next {
    position: absolute;
    background: rgba(255, 255, 255, 0.08);
    border: none;
    color: #fff;
    font-size: 1.6rem;
    cursor: pointer;
    padding: 0.6rem 1rem;
    border-radius: 50%;
}
.lightbox-close { top: var(--space-md); right: var(--space-md); }
.lightbox-prev { left: var(--space-md); top: 50%; transform: translateY(-50%); }
.lightbox-next { right: var(--space-md); top: 50%; transform: translateY(-50%); }
.lightbox-caption { color: var(--color-text); text-align: center; margin-top: var(--space-md); display: flex; flex-direction: column; align-items: center; gap: var(--space-sm); }

/* ---------- Tags ---------- */
.tag-list { display: flex; flex-wrap: wrap; gap: var(--space-xs); margin: var(--space-sm) 0; }
.tag-chip { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: 999px; padding: 0.25rem 0.75rem; font-size: 0.85rem; color: var(--color-text-muted); }
.tag-chip:hover { border-color: var(--color-accent); color: var(--color-accent); }

/* ---------- Kommentare / Faves ---------- */
.photo-comments { margin-top: var(--space-xl); }
.comment { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius); padding: var(--space-sm) var(--space-md); margin-bottom: var(--space-sm); }
.comment-date { color: var(--color-text-muted); font-size: 0.8rem; margin-left: var(--space-sm); }
.fave-btn { background: none; border: none; color: var(--color-text-muted); font-size: 1.4rem; cursor: pointer; }
.fave-btn.active { color: var(--color-danger); }

/* ---------- Upload-Dropzone ---------- */
.upload-dropzone {
    border: 2px dashed var(--color-border);
    border-radius: var(--radius);
    padding: var(--space-xl);
    text-align: center;
    color: var(--color-text-muted);
    cursor: pointer;
    transition: border-color 0.15s ease, background 0.15s ease;
}
.upload-dropzone.dragover { border-color: var(--color-accent); background: rgba(196, 143, 86, 0.08); }
.upload-overall { display: flex; align-items: center; gap: var(--space-sm); margin: var(--space-md) 0; }
.upload-overall progress { flex: 1; height: 10px; }
.upload-file-list { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: var(--space-xs); }
.upload-file-list li { display: flex; align-items: center; gap: var(--space-sm); font-size: 0.9rem; }
.upload-file-list progress { flex: 1; height: 8px; }
.upload-file-status-ok { color: var(--color-success); }
.upload-file-status-error { color: var(--color-danger); }

/* ---------- Admin ---------- */
.admin-subnav { display: flex; flex-wrap: wrap; gap: var(--space-md); margin-bottom: var(--space-lg); border-bottom: 1px solid var(--color-border); padding-bottom: var(--space-sm); }
.admin-subnav a { color: var(--color-text-muted); }
.admin-subnav a.active { color: var(--color-accent); font-weight: 600; }

.stat-cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-md); margin-bottom: var(--space-lg); }
.stat-card { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius); padding: var(--space-md); text-align: center; }
.stat-value { font-size: 1.6rem; font-weight: 700; color: var(--color-accent); }
.stat-label { color: var(--color-text-muted); font-size: 0.85rem; }

.admin-table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
.admin-table th, .admin-table td { padding: 0.5rem; border-bottom: 1px solid var(--color-border); text-align: left; }

/* ---------- Responsive breakpoints ---------- */
@media (min-width: 600px) {
    .gallery-grid { grid-template-columns: repeat(3, 1fr); }
    .album-grid { grid-template-columns: repeat(2, 1fr); }
    .form-grid { grid-template-columns: 1fr 1fr; }
    .stat-cards { grid-template-columns: repeat(4, 1fr); }
}

@media (min-width: 1024px) {
    .gallery-grid { grid-template-columns: repeat(5, 1fr); }
    .album-grid { grid-template-columns: repeat(3, 1fr); }
}