/* ==========================================================================
   opre.de Fotodatenbank — stylesheet
   Mobile-first photography-portfolio aesthetic, matched to the live
   www.opre.de brand CI (Marc Opre — "where moments turn into eternity").

   Brand source: extracted from the live site on 2026-06-21
   (accent #C48F56, typeface Montserrat, dark hero / light content sections,
   logo_white.png / logo_black.png in assets/img/).
   ========================================================================== */

: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;

    /* --- opre.de typography (Montserrat, loaded via Google Fonts) --- */
    --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;

    /* --- Spacing scale --- */
    --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);
}

* { box-sizing: border-box; }

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;
}
.brand-logo {
    height: 36px;
    width: auto;
    display: block;
}
.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: 0.8rem; color: var(--color-text-muted); }
.logged-in-as strong { color: var(--color-text); font-weight: 600; font-size: 1.2em; }
.nav-separator { color: var(--color-border); }
.lang-toggle a { color: var(--color-text-muted); font-size: 0.85rem; }

.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; }
.login-logo-img { display: block; max-width: 220px; height: auto; margin: 0 auto var(--space-md); }

/* ---------- Forms ---------- */
.form-stack { display: flex; flex-direction: column; gap: var(--space-sm); }
.form-stack-small { gap: var(--space-xs); margin-top: var(--space-xs); }
.form-inline { display: flex; flex-wrap: wrap; gap: var(--space-sm); align-items: center; margin-bottom: var(--space-md); }
.form-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-sm) var(--space-md);
}
.form-grid-full { grid-column: 1 / -1; }
.inline-form { display: inline-block; margin-right: var(--space-xs); }

label { font-size: 0.85rem; 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: 0.55rem 0.7rem;
    font-size: 0.95rem;
    font-family: inherit;
}
textarea { min-height: 90px; resize: vertical; }
.email-template-textarea { font-family: monospace; font-size: 0.8rem; }
.email-template-placeholders { font-size: 0.8rem; color: var(--color-text-muted); }
.email-template-placeholders code { background: var(--color-bg-alt); padding: 0.1rem 0.4rem; border-radius: 4px; }

/* ---------- Buttons ---------- */
.btn {
    display: inline-block;
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    color: var(--color-text);
    padding: 0.55rem 1.1rem;
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 0.9rem;
}
.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-danger.confirming { background: var(--color-danger); color: #fff; }
.btn-small { padding: 0.3rem 0.7rem; font-size: 0.8rem; }

/* ---------- Alerts / badges ---------- */
.alert { padding: var(--space-sm) var(--space-md); border-radius: var(--radius); margin-bottom: var(--space-md); font-size: 0.9rem; }
.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 project cards ---------- */
.dashboard-sort { display: flex; align-items: center; gap: var(--space-xs); margin-bottom: var(--space-md); font-size: 0.85rem; color: var(--color-text-muted); }
.dashboard-sort select { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius); color: var(--color-text); padding: 0.35rem 0.6rem; }
.project-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-lg);
}
.project-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;
}
.project-card:hover { transform: translateY(-2px); border-color: var(--color-accent); }
.project-card-cover { aspect-ratio: 16 / 10; background: var(--color-bg-alt); overflow: hidden; }
.project-card-cover img { width: 100%; height: 100%; object-fit: cover; display: block; }
.project-card-cover-placeholder { width: 100%; height: 100%; background: linear-gradient(135deg, #2a2a2a, #161616); }
.project-card-body { padding: var(--space-md); }
.project-card-subline, .project-card-date, .project-card-count { color: var(--color-text-muted); font-size: 0.85rem; margin: 0.2rem 0; }
.project-subline { font-weight: 700; }
.project-description { font-weight: 300; }

.document-card-cover { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: var(--space-xs); background: var(--color-bg-alt); padding: var(--space-md); }
.document-cover-icon { width: 100%; height: 100%; max-width: 90px; max-height: 90px; flex-shrink: 0; }
.document-cover-sheet { fill: var(--color-surface); stroke: var(--color-border); stroke-width: 1.5; }
.document-cover-sheet-back { opacity: 0.55; }
.document-cover-sheet-mid { opacity: 0.8; }
.document-cover-sheet-front { fill: var(--color-accent); fill-opacity: 0.18; stroke: var(--color-accent); }
.document-cover-sheet-fold { fill: var(--color-bg-alt); stroke: var(--color-accent); stroke-width: 1.5; }
.document-cover-label { font-size: 0.8rem; font-weight: 700; letter-spacing: 0.03em; color: var(--color-accent); }

/* ---------- Übersicht split screen ---------- */
.overview-split { display: grid; grid-template-columns: 1fr; gap: var(--space-xl); }
.overview-pane-tile {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: var(--space-sm) var(--space-md);
    margin-bottom: var(--space-md);
    color: var(--color-text);
    transition: border-color 0.15s ease;
}
.overview-pane-tile:hover { border-color: var(--color-accent); }
.overview-pane-tile-label { font-weight: 600; font-size: 0.95rem; text-transform: uppercase; letter-spacing: 0.03em; color: var(--color-text-muted); }
.overview-pane-tile-count { background: var(--color-accent); color: var(--color-bg); border-radius: 999px; padding: 0.05rem 0.55rem; font-size: 0.8rem; font-weight: 700; }
.overview-pane-tile-link { margin-left: auto; font-size: 0.8rem; color: var(--color-accent); }
.overview-grid { grid-template-columns: 1fr; }

/* ---------- Gallery grid ---------- */
.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-code { font-size: 0.7rem; color: var(--color-text-muted); letter-spacing: 0.03em; }
.gallery-item-title { font-size: 0.85rem; font-weight: 600; color: var(--color-text); }
.gallery-item-subtitle { font-size: 0.8rem; color: var(--color-text-muted); }
.gallery-item-filesize { font-size: 0.7rem; color: var(--color-text-muted); }
.gallery-item-download { margin-top: var(--space-xs); align-self: flex-start; }

/* ---------- 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: 90vw; 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: 1.5rem;
    cursor: pointer;
    padding: 0.5rem 0.9rem;
    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); }

.star-rating { font-size: 1.5rem; cursor: pointer; }
.star-rating .star { color: #555; transition: color 0.1s ease; }
.star-rating .star.active, .star-rating .star:hover { color: var(--color-accent); }
.star-rating-inline { font-size: 1rem; margin-top: 0.1rem; }
.star-rating-display { font-size: 1rem; margin-top: 0.1rem; cursor: default; }
.star-rating-display .star:hover { color: #555; }

/* ---------- Comments ---------- */
.project-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: 0.75rem; margin-left: var(--space-sm); }

/* ---------- Share links ---------- */
.project-share-links { margin-top: var(--space-xl); }
.share-link-row { border-bottom: 1px solid var(--color-border); padding: var(--space-sm) 0; }
.share-link-row:last-child { border-bottom: none; }
.share-link-url-row { display: flex; flex-wrap: wrap; gap: var(--space-xs); align-items: center; }
.share-link-url-input { flex: 1 1 240px; min-width: 0; background: var(--color-bg-alt); border: 1px solid var(--color-border); border-radius: var(--radius); padding: 0.4rem 0.6rem; color: var(--color-text); font-size: 0.8rem; }
.share-link-meta { display: flex; flex-wrap: wrap; gap: var(--space-sm); align-items: center; margin-top: 0.3rem; font-size: 0.8rem; color: var(--color-text-muted); }

/* ---------- Modal ---------- */
.modal { position: fixed; inset: 0; background: rgba(0, 0, 0, 0.7); display: flex; align-items: center; justify-content: center; z-index: 1100; }
.modal.hidden { display: none; }
.modal-box { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius); padding: var(--space-lg); width: 100%; max-width: 360px; box-shadow: var(--shadow); }
.modal-box label { display: block; margin: var(--space-sm) 0 0.3rem; font-size: 0.85rem; }
.modal-box input[type="email"] { width: 100%; padding: 0.5rem; border-radius: var(--radius); border: 1px solid var(--color-border); background: var(--color-bg-alt); color: var(--color-text); }
.modal-actions { display: flex; justify-content: flex-end; gap: var(--space-xs); margin-top: var(--space-md); }
.share-email-status { margin-top: var(--space-sm); font-size: 0.85rem; color: var(--color-success); }
.share-email-status.error { color: var(--color-danger); }

/* ---------- Admin ---------- */
.admin-subnav { display: flex; 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: 0.8rem; }

.admin-grid { display: grid; grid-template-columns: 1fr; gap: var(--space-lg); }
.admin-panel { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius); padding: var(--space-md); }
.admin-panel-wide { grid-column: 1 / -1; }
.cover-preview { display: flex; align-items: center; gap: var(--space-md); margin-bottom: var(--space-md); }
.cover-preview img { width: 140px; height: 140px; object-fit: cover; border-radius: var(--radius); border: 1px solid var(--color-border); }
.cover-preview-empty { width: 140px; height: 140px; display: flex; align-items: center; justify-content: center; text-align: center; font-size: 0.75rem; color: var(--color-text-muted); background: var(--color-bg-alt); border-radius: var(--radius); border: 1px dashed var(--color-border); padding: var(--space-xs); }
.cover-preview-label { font-size: 0.8rem; color: var(--color-text-muted); text-transform: uppercase; letter-spacing: 0.04em; }

.admin-table { width: 100%; border-collapse: collapse; font-size: 0.85rem; }
.admin-table th, .admin-table td { padding: 0.45rem 0.5rem; border-bottom: 1px solid var(--color-border); text-align: left; }
.admin-table-actions { white-space: nowrap; }

.info-tooltip { position: relative; display: inline-block; }
.info-tooltip-btn {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    border: 1px solid var(--color-border);
    background: var(--color-bg-alt);
    color: var(--color-text-muted);
    font-size: 0.7rem;
    font-style: italic;
    font-weight: 700;
    line-height: 1;
    padding: 0;
    cursor: pointer;
}
.info-tooltip-btn:hover { border-color: var(--color-accent); color: var(--color-accent); }
.info-tooltip-empty {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    border: 1px solid var(--color-border);
    color: var(--color-text-muted);
    font-size: 0.7rem;
    font-style: italic;
    cursor: default;
}
.info-tooltip-panel {
    display: none;
    position: absolute;
    top: 26px;
    left: 0;
    z-index: 20;
    min-width: 160px;
    max-width: 240px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: var(--space-sm);
    font-size: 0.8rem;
}
.info-tooltip-panel strong { display: block; margin-bottom: 0.3rem; color: var(--color-text-muted); font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.03em; }
.info-tooltip-panel ul { list-style: none; margin: 0; padding: 0; }
.info-tooltip-panel li { padding: 0.15rem 0; }
.info-tooltip:hover .info-tooltip-panel,
.info-tooltip.open .info-tooltip-panel { display: block; }

.admin-image-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-md); }
.admin-image-card { background: var(--color-bg-alt); border: 1px solid var(--color-border); border-radius: var(--radius); padding: var(--space-sm); }
.admin-image-card img { width: 100%; aspect-ratio: 1/1; object-fit: cover; border-radius: var(--radius); display: block; }
.admin-image-code { font-size: 0.75rem; color: var(--color-text-muted); margin: var(--space-xs) 0; }
.admin-image-filesize { font-size: 0.7rem; color: var(--color-text-muted); margin: -0.2rem 0 var(--space-xs); }
.admin-image-actions { display: flex; gap: var(--space-xs); margin-top: var(--space-xs); }

.image-detail-preview { width: 100%; max-height: 60vh; object-fit: contain; border-radius: var(--radius); margin-bottom: var(--space-lg); background: #000; }
.image-detail-filesize { font-size: 0.85rem; color: var(--color-text-muted); margin: -1rem 0 var(--space-lg); }

/* ---------- 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(201, 162, 92, 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: 0.85rem; }
.upload-file-list progress { flex: 1; height: 8px; }
.upload-file-status-ok { color: var(--color-success); }
.upload-file-status-error { color: var(--color-danger); }

/* ---------- Drag & drop user assignment ---------- */
.assign-columns { display: grid; grid-template-columns: 1fr; gap: var(--space-md); }
.assign-col { background: var(--color-bg-alt); border: 1px solid var(--color-border); border-radius: var(--radius); padding: var(--space-sm); min-height: 120px; }
.assign-drop-zone.dragover { border-color: var(--color-accent); background: rgba(201, 162, 92, 0.08); }
.user-chip-list { list-style: none; padding: 0; margin: var(--space-sm) 0 0; display: flex; flex-wrap: wrap; gap: var(--space-xs); }
.user-chip { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: 999px; padding: 0.3rem 0.8rem; font-size: 0.8rem; cursor: grab; }
.user-chip:active { cursor: grabbing; }
.badge-admin { background: var(--color-accent); color: var(--color-bg); border-radius: 999px; padding: 0.1rem 0.5rem; font-size: 0.65rem; font-weight: 600; margin-left: 0.4rem; text-transform: uppercase; }

/* ---------- Documents ---------- */
.document-list { display: flex; flex-direction: column; gap: var(--space-sm); }
.document-row { display: flex; align-items: center; gap: var(--space-md); background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius); padding: var(--space-sm) var(--space-md); }
.document-badge { background: var(--color-bg-alt); border: 1px solid var(--color-border); border-radius: 4px; padding: 0.25rem 0.5rem; font-size: 0.7rem; font-weight: 700; letter-spacing: 0.03em; color: var(--color-accent); flex-shrink: 0; }
.document-info { flex: 1; min-width: 0; }
.document-name { font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.document-meta { font-size: 0.8rem; color: var(--color-text-muted); }
.document-file-info { font-size: 0.85rem; color: var(--color-text); margin-top: 0.2rem; }
.document-row-admin { flex-wrap: wrap; }
.document-info-form { display: flex; gap: var(--space-xs); margin-top: 0.3rem; }
.document-info-form input[type="text"] { flex: 1; min-width: 0; font-size: 0.8rem; padding: 0.3rem 0.5rem; }
.form-hint { font-size: 0.8rem; color: var(--color-text-muted); margin: 0; }

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

@media (min-width: 1024px) {
    .gallery-grid { grid-template-columns: repeat(4, 1fr); }
    .project-grid { grid-template-columns: repeat(3, 1fr); }
    .admin-grid { grid-template-columns: repeat(2, 1fr); }
    .admin-image-grid { grid-template-columns: repeat(4, 1fr); }

    /* Übersicht: side-by-side split screen when both projects and documents
       exist (2 narrower columns each, since the pane shares the width);
       when only one side exists it takes the full width, so its item grid
       gets the wider 4-column layout. */
    .overview-split:not(.overview-split-single) { grid-template-columns: 1fr 1fr; }
    .overview-split:not(.overview-split-single) .overview-grid { grid-template-columns: repeat(2, 1fr) !important; }
    .overview-split-single .overview-grid { grid-template-columns: repeat(4, 1fr) !important; }
}