/* === ПРОМЕНЉИВЕ И RESET === */

@font-face {
    font-family: 'EtarRNIDS';
    src: url('../fonts/EtarRNIDS/EtarRNIDS-Regular.otf') format('opentype'),
         url('../fonts/EtarRNIDS/EtarRNIDS-Regular.ttf') format('truetype');
    font-weight: 400;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'EtarRNIDS';
    src: url('../fonts/EtarRNIDS/EtarRNIDS-Italic.otf') format('opentype'),
         url('../fonts/EtarRNIDS/EtarRNIDS-Italic.ttf') format('truetype');
    font-weight: 400;
    font-style: italic;
    font-display: swap;
}

@font-face {
    font-family: 'EtarRNIDS';
    src: url('../fonts/EtarRNIDS/EtarRNIDS-Bold.otf') format('opentype'),
         url('../fonts/EtarRNIDS/EtarRNIDS-Bold.ttf') format('truetype');
    font-weight: 700;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'EtarRNIDS';
    src: url('../fonts/EtarRNIDS/EtarRNIDS-BoldItalic.otf') format('opentype'),
         url('../fonts/EtarRNIDS/EtarRNIDS-BoldItalic.ttf') format('truetype');
    font-weight: 700;
    font-style: italic;
    font-display: swap;
}

:root {
    --clr-primary:        #8B1C1C;
    --clr-primary-hover:  #6E1616;
    --clr-accent-bg:      #F0EDE8;
    --clr-bg:             #FFFFFF;
    --clr-bg-secondary:   #F5F5F5;
    --clr-text:           #1A1A1A;
    --clr-text-muted:     #666666;
    --clr-border:         #E0E0E0;
    --clr-success:        #2E7D32;
    --clr-success-bg:     #E8F5E9;
    --clr-danger:         #C62828;
    --clr-danger-bg:      #FFEBEE;
    --clr-warning:        #E65100;
    --clr-warning-bg:     #FFF3E0;
    --font:               'EtarRNIDS', Georgia, 'Times New Roman', serif;
    --radius:             6px;
    --radius-lg:          10px;
    --shadow-sm:          0 1px 3px rgba(0,0,0,.08);
    --shadow:             0 2px 8px rgba(0,0,0,.10);
    --shadow-lg:          0 4px 16px rgba(0,0,0,.14);
    --sidebar-width:      240px;
    --transition:         180ms ease;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 16px; -webkit-text-size-adjust: 100%; }

body {
    font-family: var(--font);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--clr-text);
    background: var(--clr-bg);
    min-height: 100vh;
}

a { color: var(--clr-primary); text-decoration: none; }
a:hover { color: var(--clr-primary-hover); text-decoration: underline; }
img { max-width: 100%; height: auto; }
ul, ol { list-style: none; }

/* === ТИПОГРАФИЈА === */

h1, h2, h3, h4 { font-weight: 700; line-height: 1.3; }
h1 { font-size: 1.6rem; }
h2 { font-size: 1.35rem; }
h3 { font-size: 1.15rem; }
h4 { font-size: 1rem; }

/* === LAYOUT / GRID === */

/* Auth — центрирана картица */
.auth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--clr-accent-bg);
    padding: 1rem;
}

.auth-card {
    background: var(--clr-bg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: 2.5rem 2rem;
    width: 100%;
    max-width: 420px;
}

.auth-logo {
    text-align: center;
    margin-bottom: 2rem;
}

.auth-logo-img {
    max-height: 80px;
    width: auto;
}

.auth-card h1 {
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
}

/* Admin — sidebar layout */
.admin-layout {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: var(--sidebar-width);
    background: var(--clr-primary);
    color: #fff;
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0; left: 0;
    height: 100vh;
    overflow-y: auto;
    z-index: 100;
}

.sidebar-brand {
    padding: 1.2rem 1.2rem 1rem;
    border-bottom: 1px solid rgba(255,255,255,.15);
    flex-shrink: 0;
}

.brand-logo-link { display: block; }

.brand-logo {
    max-height: 48px;
    width: auto;
    display: block;
}

.sidebar-nav {
    flex: 1;
    padding: .5rem 0;
    overflow-y: auto;
}

.nav-label {
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: .09em;
    color: rgba(255,255,255,.45);
    padding: .8rem 1.2rem .2rem;
    display: block;
}

.sidebar-nav a {
    display: flex;
    align-items: center;
    padding: .5rem 1.2rem;
    color: rgba(255,255,255,.82);
    font-size: .88rem;
    border-left: 3px solid transparent;
    transition: background var(--transition), color var(--transition), border-color var(--transition);
}

.sidebar-nav a:hover,
.sidebar-nav a.active {
    background: rgba(255,255,255,.12);
    color: #fff;
    text-decoration: none;
    border-left-color: rgba(255,255,255,.6);
}

.sidebar-nav a.active { border-left-color: #fff; font-weight: 600; }

.sidebar-footer {
    padding: .9rem 1.2rem;
    border-top: 1px solid rgba(255,255,255,.15);
    flex-shrink: 0;
}

.sidebar-footer .staff-name { color: #fff; font-weight: 600; font-size: .88rem; display: block; }
.sidebar-footer .staff-role {
    color: rgba(255,255,255,.6);
    font-size: .75rem;
    display: block;
    text-transform: capitalize;
    margin-top: .1rem;
}

.sidebar-footer .logout-link {
    display: inline-block;
    margin-top: .6rem;
    color: rgba(255,255,255,.7);
    font-size: .8rem;
    border: 1px solid rgba(255,255,255,.25);
    padding: .25rem .7rem;
    border-radius: var(--radius);
    transition: background var(--transition), color var(--transition);
}

.sidebar-footer .logout-link:hover {
    background: rgba(255,255,255,.15);
    color: #fff;
    text-decoration: none;
}

.admin-main {
    margin-left: var(--sidebar-width);
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.page-content {
    padding: 1.5rem;
    flex: 1;
}

.admin-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: .75rem 1.5rem;
    border-top: 1px solid var(--clr-border);
    font-size: .78rem;
    color: var(--clr-text-muted);
    flex-shrink: 0;
}

.admin-footer-brand {
    display: flex;
    align-items: center;
    gap: .75rem;
}

.admin-footer-text { color: var(--clr-text-muted); }

.admin-footer-logo {
    max-height: 28px;
    width: auto;
    opacity: .75;
}

/* === НАВИГАЦИЈА === */
/* (sidebar у LAYOUT секцији) */

/* === OPAC === */

.opac-body { background: var(--clr-bg-secondary); }

/* Header */
.opac-header {
    background: var(--clr-primary);
    color: #fff;
    box-shadow: 0 2px 6px rgba(0,0,0,.2);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.opac-header-inner {
    max-width: 1100px;
    margin: 0 auto;
    padding: .75rem 1.25rem;
    display: flex;
    align-items: center;
    gap: 1.25rem;
    flex-wrap: wrap;
}

.opac-logo {
    font-size: 1.15rem;
    font-weight: 700;
    color: #fff;
    white-space: nowrap;
    flex-shrink: 0;
}
.opac-logo:hover { color: rgba(255,255,255,.85); text-decoration: none; }

.opac-logo-img {
    max-height: 48px;
    max-width: 200px;
    width: auto;
    display: block;
    object-fit: contain;
}

.opac-search-form {
    flex: 1;
    display: flex;
    gap: .4rem;
    min-width: 200px;
}

.opac-search-input {
    flex: 1;
    padding: .45rem .75rem;
    border: none;
    border-radius: var(--radius);
    font-family: var(--font);
    font-size: .9rem;
}
.opac-search-input:focus { outline: 2px solid rgba(255,255,255,.5); }

.opac-search-btn {
    background: rgba(255,255,255,.2);
    border: 1px solid rgba(255,255,255,.3);
    color: #fff;
    padding: .45rem .9rem;
    border-radius: var(--radius);
    font-family: var(--font);
    font-size: .88rem;
    cursor: pointer;
    white-space: nowrap;
}
.opac-search-btn:hover { background: rgba(255,255,255,.3); }

.opac-nav {
    display: flex;
    align-items: center;
    gap: .75rem;
    flex-shrink: 0;
    margin-left: auto;
}
.opac-nav a { color: rgba(255,255,255,.85); font-size: .88rem; }
.opac-nav a:hover { color: #fff; text-decoration: none; }
.opac-nav-login { background: rgba(255,255,255,.15); padding: .3rem .7rem; border-radius: var(--radius); }
.opac-nav-member { font-weight: 600; }
.opac-nav-staff {
    opacity: .55;
    font-size: .78rem !important;
    border-left: 1px solid rgba(255,255,255,.25);
    padding-left: .75rem !important;
    margin-left: .25rem;
}

/* Хамбургер — сакривен на десктопу */
.opac-hamburger {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 26px;
    height: 18px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    flex-shrink: 0;
    margin-left: auto;
}
.opac-hamburger span {
    display: block;
    height: 2px;
    background: #fff;
    border-radius: 2px;
    transition: transform .2s, opacity .2s;
}
/* Анимација у X при отварању */
.opac-hamburger[aria-expanded="true"] span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.opac-hamburger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.opac-hamburger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

/* Container */
.opac-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 1.25rem;
}

.opac-main { padding: 1.5rem 0 3rem; }

/* Hero */
.opac-hero {
    background: var(--clr-primary);
    color: #fff;
    padding: 3rem 1.25rem 2.5rem;
    margin-bottom: 2rem;
}

/* Hero са full-width сликом */
.opac-hero-full {
    position: relative;
    min-height: 420px;
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 4rem 1.25rem;
    margin-top: -1.5rem; /* поклапа padding opac-main да нема беле линије */
}

.opac-hero-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, .45);
    pointer-events: none;
}

.opac-hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    width: 100%;
    max-width: 700px;
}

.opac-hero-title { font-size: 2.2rem; color: #fff; margin-bottom: .4rem; text-shadow: 0 1px 4px rgba(0,0,0,.4); }
.opac-hero-sub   { color: rgba(255,255,255,.85); margin-bottom: 1.75rem; font-size: 1.05rem; text-shadow: 0 1px 3px rgba(0,0,0,.3); }

.opac-hero-search {
    display: flex;
    gap: .5rem;
    max-width: 600px;
    margin: 0 auto;
}

.opac-hero-input {
    flex: 1;
    padding: .75rem 1.1rem;
    border: none;
    border-radius: var(--radius);
    font-family: var(--font);
    font-size: 1rem;
    box-shadow: 0 2px 8px rgba(0,0,0,.25);
}
.opac-hero-input:focus { outline: 3px solid rgba(255,255,255,.5); }

.opac-hero-btn {
    background: var(--clr-primary);
    color: #fff;
    border: none;
    padding: .75rem 1.5rem;
    border-radius: var(--radius);
    font-family: var(--font);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    white-space: nowrap;
    box-shadow: 0 2px 8px rgba(0,0,0,.25);
    transition: background var(--transition);
}
.opac-hero-btn:hover { background: var(--clr-primary-hover); }

@media (max-width: 600px) {
    .opac-hero-full    { min-height: 300px; padding: 3rem 1rem; }
    .opac-hero-title   { font-size: 1.6rem; }
    .opac-hero-search  { flex-direction: column; }
    .opac-hero-btn     { width: 100%; }
}

/* Sections */
.opac-section { margin-bottom: 2.5rem; }

.member-info-grid {
    display: grid;
    grid-template-columns: max-content 1fr;
    gap: .4rem 1.5rem;
    margin: 0;
}
.member-info-grid dt {
    font-weight: 600;
    color: var(--clr-text-muted);
    white-space: nowrap;
}
.member-info-grid dd { margin: 0; }

.opac-section-title {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    padding-bottom: .4rem;
    border-bottom: 2px solid var(--clr-primary);
    color: var(--clr-primary);
}

/* Book grid */
.opac-book-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 1rem;
}

.opac-book-grid-sm {
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
}

.opac-book-card {
    display: flex;
    flex-direction: column;
    background: var(--clr-bg);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: box-shadow var(--transition), transform var(--transition);
    text-decoration: none;
}
.opac-book-card:hover {
    box-shadow: var(--shadow);
    transform: translateY(-2px);
    text-decoration: none;
}

.opac-book-cover {
    aspect-ratio: 2/3;
    background: var(--clr-accent-bg);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}
.opac-book-cover img { width: 100%; height: 100%; object-fit: cover; }

.opac-no-cover    { font-size: 2.5rem; color: var(--clr-text-muted); }
.opac-no-cover-sm { font-size: 2rem; color: var(--clr-text-muted); }
.opac-no-cover-lg { font-size: 4rem; color: var(--clr-text-muted); padding: 2rem; }

.opac-book-info {
    padding: .6rem .75rem;
    display: flex;
    flex-direction: column;
    gap: .2rem;
}

.opac-book-title  { font-size: .82rem; font-weight: 600; color: var(--clr-text); line-height: 1.3; }
.opac-book-author { font-size: .75rem; color: var(--clr-text-muted); }
.opac-book-year   { font-size: .72rem; color: var(--clr-text-muted); }

/* Search results */
.opac-filter-bar {
    display: flex;
    flex-wrap: wrap;
    gap: .5rem;
    margin-bottom: 1.25rem;
    align-items: center;
}
.opac-filter-input  { flex: 1; min-width: 200px; }
.opac-filter-select { max-width: 200px; }

.filter-bar {
    display: flex;
    align-items: center;
    gap: .5rem;
    flex-wrap: wrap;
}
.filter-input { flex: 1; min-width: 200px; max-width: 400px; }

.opac-results-count { color: var(--clr-text-muted); font-size: .9rem; margin-bottom: 1rem; }

.opac-results-list { display: flex; flex-direction: column; gap: .75rem; }

.opac-result-item {
    display: flex;
    gap: 1rem;
    background: var(--clr-bg);
    border-radius: var(--radius-lg);
    padding: .9rem;
    box-shadow: var(--shadow-sm);
    text-decoration: none;
    transition: box-shadow var(--transition);
}
.opac-result-item:hover { box-shadow: var(--shadow); text-decoration: none; }

.opac-result-cover {
    width: 56px;
    flex-shrink: 0;
    aspect-ratio: 2/3;
    background: var(--clr-accent-bg);
    border-radius: var(--radius);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}
.opac-result-cover img { width: 100%; height: 100%; object-fit: cover; }

.opac-result-meta { display: flex; flex-direction: column; gap: .2rem; }
.opac-result-title   { font-weight: 700; color: var(--clr-text); font-size: .95rem; }
.opac-result-author  { font-size: .85rem; color: var(--clr-text-muted); }
.opac-result-details { font-size: .8rem; color: var(--clr-text-muted); }
.opac-available   { color: #2e7d32; font-size: .8rem; font-weight: 600; }
.opac-unavailable { color: var(--clr-text-muted); font-size: .8rem; }

/* Record page */
.opac-record-layout {
    display: grid;
    grid-template-columns: 240px 1fr;
    gap: 2rem;
    align-items: start;
}

.opac-record-cover img {
    width: 100%;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
}

.opac-availability {
    margin-top: 1.25rem;
    background: var(--clr-bg-secondary);
    border-radius: var(--radius);
    padding: .9rem;
}
.opac-availability h3 {
    font-size: .88rem;
    text-transform: uppercase;
    letter-spacing: .06em;
    color: var(--clr-text-muted);
    margin-bottom: .75rem;
}
.opac-item-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: .5rem;
    padding: .3rem 0;
    border-bottom: 1px solid var(--clr-border);
    font-size: .82rem;
}
.opac-item-row:last-child { border-bottom: none; }
.opac-item-inv  { min-width: 80px; flex-shrink: 0; }
.opac-item-inv code { font-size: .8rem; color: var(--clr-text-muted); }
.opac-item-loc  { flex: 1; color: var(--clr-text-muted); }

.opac-record-title { font-size: 1.6rem; margin-bottom: .5rem; }
.opac-record-orig    { color: var(--clr-text-muted); font-style: italic; margin-bottom: .35rem; }
.opac-record-contribs {
    display: flex;
    flex-wrap: wrap;
    gap: .4rem;
    margin-top: .5rem;
    margin-bottom: .75rem;
}

.opac-record-authors {
    display: flex;
    flex-wrap: wrap;
    gap: .5rem;
    margin-bottom: 1.25rem;
}
.opac-author {
    background: var(--clr-accent-bg);
    padding: .25rem .65rem;
    border-radius: 999px;
    font-size: .85rem;
    color: var(--clr-primary);
    font-weight: 600;
}
.opac-author small { font-weight: 400; color: var(--clr-text-muted); margin-left: .2rem; }

/* Преводилац, уредник, илустратор — плаво-сива боја */
.opac-author-contrib {
    background: #e8eaf6;
    color: #3949ab;
}
.opac-author-role {
    display: inline-block;
    font-weight: 400;
    font-style: italic;
    font-size: .78rem;
    color: #5c6bc0;
    margin-left: .3rem;
}

.opac-meta-table { width: 100%; border-collapse: collapse; margin-bottom: 1.25rem; font-size: .9rem; }
.opac-meta-table th {
    text-align: left;
    font-size: .75rem;
    text-transform: uppercase;
    letter-spacing: .05em;
    color: var(--clr-text-muted);
    padding: .4rem .75rem .4rem 0;
    width: 140px;
    vertical-align: top;
}
.opac-meta-table td { padding: .4rem 0; border-bottom: 1px solid var(--clr-border); }
.opac-meta-table tr:last-child td { border-bottom: none; }

.opac-tags-row { display: flex; flex-wrap: wrap; gap: .4rem; align-items: center; margin-bottom: 1rem; }
.opac-tags-label { font-size: .78rem; color: var(--clr-text-muted); }
.opac-tag {
    font-size: .78rem;
    background: var(--clr-bg-secondary);
    border: 1px solid var(--clr-border);
    padding: .15rem .55rem;
    border-radius: 4px;
    color: var(--clr-text);
}
.opac-tag:hover { background: var(--clr-accent-bg); text-decoration: none; }

.opac-notes { margin-top: 1rem; }
.opac-notes h3 { font-size: .9rem; margin-bottom: .4rem; color: var(--clr-text-muted); }

/* Top books on home page */
.opac-top-books {
    display: flex;
    flex-direction: column;
    gap: .4rem;
}
.opac-top-book-row {
    display: flex;
    align-items: center;
    gap: .75rem;
    padding: .5rem .6rem;
    border-radius: var(--radius);
    background: var(--clr-bg-secondary);
    text-decoration: none;
    color: var(--clr-text);
    transition: background .15s;
}
.opac-top-book-row:hover { background: color-mix(in srgb, var(--clr-primary) 10%, var(--clr-bg-secondary)); }
.opac-top-book-row:first-child { background: color-mix(in srgb, var(--clr-primary) 12%, var(--clr-bg-secondary)); font-weight: 600; }
.opac-top-book-cover { width: 32px; height: 44px; flex-shrink: 0; border-radius: 2px; overflow: hidden; display: flex; align-items: center; justify-content: center; background: var(--clr-border); }
.opac-top-book-cover img { width: 100%; height: 100%; object-fit: cover; }
.opac-top-book-nocover { font-size: 1.1rem; }
.opac-top-book-info { flex: 1; display: flex; flex-direction: column; gap: .1rem; min-width: 0; }
.opac-top-book-info .opac-top-name { font-size: .9rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.opac-top-book-info .opac-book-author { font-size: .78rem; }

/* Top students / odeljenja on home page */
.opac-top-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
}
.opac-top-col-title {
    font-size: .9rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .06em;
    color: var(--clr-text-muted);
    margin-bottom: .75rem;
}
.opac-top-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: .35rem;
}
.opac-top-item {
    display: flex;
    align-items: baseline;
    gap: .6rem;
    padding: .4rem .6rem;
    border-radius: var(--radius);
    background: var(--clr-bg-secondary);
    font-size: .9rem;
}
.opac-top-item:first-child {
    background: color-mix(in srgb, var(--clr-primary) 12%, var(--clr-bg-secondary));
    font-weight: 600;
}
.opac-top-rank {
    min-width: 1.4rem;
    font-weight: 700;
    color: var(--clr-primary);
    font-size: .8rem;
}
.opac-top-name { flex: 1; }
.opac-top-count {
    font-size: .78rem;
    color: var(--clr-text-muted);
    white-space: nowrap;
}

/* Hours on home page */
.opac-hours-grid { display: flex; flex-direction: column; gap: 1.25rem; }

.opac-schedule-block {
    background: var(--clr-bg);
    border-radius: var(--radius-lg);
    padding: 1rem;
    box-shadow: var(--shadow-sm);
}

.opac-schedule-name {
    font-size: .95rem;
    margin-bottom: .75rem;
    color: var(--clr-primary);
}
.opac-schedule-name small { font-weight: 400; color: var(--clr-text-muted); margin-left: .5rem; }

.opac-days { display: flex; flex-wrap: wrap; gap: .5rem; }

.opac-day {
    flex: 1;
    min-width: 80px;
    padding: .6rem .5rem;
    border-radius: var(--radius);
    background: var(--clr-bg-secondary);
    text-align: center;
    font-size: .82rem;
}

.opac-day-closed { opacity: .5; }

.opac-day-name   { font-weight: 700; display: block; margin-bottom: .15rem; }
.opac-day-time   { display: block; color: #2e7d32; font-weight: 600; font-size: .78rem; white-space: nowrap; }
.opac-day-closed-lbl { display: block; color: var(--clr-text-muted); font-size: .75rem; }


/* Контакт */
.opac-contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
    align-items: start;
}

@media (max-width: 640px) {
    .opac-contact-grid { grid-template-columns: 1fr; }
}

/* Footer */
.opac-footer {
    background: var(--clr-primary);
    padding: 2rem 0 1rem;
    margin-top: auto;
    color: rgba(255,255,255,.8);
}

/* Ред 1 — колоне */
.opac-footer-cols {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid rgba(255,255,255,.15);
    margin-bottom: 1rem;
}

.opac-footer-col { min-width: 0; }

/* Последња колона: логотип + опис */
.opac-footer-col-brand {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: .5rem;
    text-align: right;
}

.opac-footer-logo {
    max-height: 40px;
    width: auto;
    opacity: .9;
}

.opac-footer-brand-text {
    font-size: .78rem;
    color: rgba(255,255,255,.6);
    margin: 0;
}

/* Ред 2 — аутор и права */
.opac-footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: .78rem;
    color: rgba(255,255,255,.55);
    flex-wrap: wrap;
    gap: .5rem;
}

.opac-footer-link {
    color: rgba(255,255,255,.8);
    text-decoration: underline;
    text-underline-offset: 2px;
}
.opac-footer-link:hover { color: #fff; }

@media (max-width: 600px) {
    .opac-footer-cols { grid-template-columns: 1fr; }
    .opac-footer-col-brand { align-items: flex-start; text-align: left; }
    .opac-footer-bottom { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 768px) {
    .opac-header-inner { gap: .5rem; }

    /* Хамбургер видљив, навигација скривена по дефаулту */
    .opac-hamburger { display: flex; }
    .opac-nav {
        display: none;
        order: 4;
        width: 100%;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        margin-left: 0;
        border-top: 1px solid rgba(255,255,255,.2);
        padding-top: .4rem;
        padding-bottom: .25rem;
    }
    .opac-nav.nav-open { display: flex; }
    .opac-nav a {
        padding: .65rem .25rem;
        font-size: .95rem;
        border-bottom: 1px solid rgba(255,255,255,.1);
    }
    .opac-nav a:last-child { border-bottom: none; }
    .opac-nav-login {
        background: none;
        padding: .65rem .25rem;
        border-radius: 0;
    }

    /* Поље за претрагу у другом реду */
    .opac-search-form { order: 3; width: 100%; }

    .opac-record-layout { grid-template-columns: 1fr; }
    .opac-record-aside  { display: flex; flex-direction: column; align-items: center; }
    .opac-record-cover  { max-width: 200px; }
    .opac-book-grid { grid-template-columns: repeat(auto-fill, minmax(120px, 1fr)); }
}

/* === ADMIN PANEL === */

.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.page-header h1 { font-size: 1.35rem; flex: 1; min-width: 0; }

/* Дугме „← Почетна" у layout-у — спаја се са page-header-ом */
.back-to-home {
    display: inline-flex;
    align-items: center;
    font-size: .82rem;
    color: var(--clr-text-muted);
    text-decoration: none;
    margin-bottom: -1rem;
    padding: .2rem 0;
    gap: .25rem;
    line-height: 1;
}
.back-to-home:hover { color: var(--clr-primary); text-decoration: none; }

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.stat-card {
    background: var(--clr-bg);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius-lg);
    padding: 1.25rem 1.5rem;
    box-shadow: var(--shadow-sm);
}

.stat-card .stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--clr-primary);
    display: block;
    line-height: 1.2;
}

.stat-card .stat-label {
    font-size: .82rem;
    color: var(--clr-text-muted);
    margin-top: .25rem;
    display: block;
}

.stat-card.stat-danger .stat-value { color: var(--clr-danger); }

.quick-links {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 1rem;
    margin-top: 1.5rem;
}

.quick-group {
    background: var(--clr-bg);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius-lg);
    padding: 1rem 1.25rem;
    box-shadow: var(--shadow-sm);
}

.quick-group-title {
    font-size: .75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .07em;
    color: var(--clr-text-muted);
    margin-bottom: .75rem;
}

.quick-group-btns {
    display: flex;
    flex-direction: column;
    gap: .4rem;
}

.quick-group-btns .btn {
    justify-content: flex-start;
    text-align: left;
    white-space: normal;
}

/* === ФОРМЕ === */

.form-group { margin-bottom: 1.1rem; }

label {
    display: block;
    font-size: .87rem;
    font-weight: 600;
    margin-bottom: .35rem;
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
input[type="date"],
input[type="time"],
input[type="search"],
select,
textarea {
    width: 100%;
    padding: .55rem .75rem;
    border: 1px solid var(--clr-border);
    border-radius: var(--radius);
    font-family: var(--font);
    font-size: .95rem;
    color: var(--clr-text);
    background: var(--clr-bg);
    transition: border-color var(--transition), box-shadow var(--transition);
    appearance: none;
}

input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--clr-primary);
    box-shadow: 0 0 0 3px rgba(139,28,28,.12);
}

textarea { resize: vertical; min-height: 80px; }

.checkbox-group {
    display: flex;
    align-items: center;
    gap: .5rem;
    margin-bottom: 1.1rem;
}

.checkbox-group input[type="checkbox"] {
    width: 1rem;
    height: 1rem;
    accent-color: var(--clr-primary);
    cursor: pointer;
    flex-shrink: 0;
}

.checkbox-group label { margin: 0; font-weight: 400; cursor: pointer; font-size: .9rem; }

/* === ТАБЕЛЕ === */

.table-wrap {
    overflow-x: auto;
    border-radius: var(--radius);
    border: 1px solid var(--clr-border);
    box-shadow: var(--shadow-sm);
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: .9rem;
}

thead th {
    background: var(--clr-bg-secondary);
    padding: .65rem 1rem;
    text-align: left;
    font-size: .78rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .05em;
    color: var(--clr-text-muted);
    border-bottom: 1px solid var(--clr-border);
    white-space: nowrap;
}

tbody td {
    padding: .6rem 1rem;
    border-bottom: 1px solid var(--clr-border);
    vertical-align: middle;
}

tbody tr:last-child td { border-bottom: none; }
tbody tr:hover { background: var(--clr-bg-secondary); }

/* === КАРТИЦЕ / КОМПОНЕНТЕ === */

.card {
    background: var(--clr-bg);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.card-body { padding: 1.25rem; }

.alert {
    padding: .75rem 1rem;
    border-radius: var(--radius);
    font-size: .9rem;
    margin-bottom: 1.25rem;
    border: 1px solid transparent;
}

.alert-danger  { background: var(--clr-danger-bg);  color: var(--clr-danger);  border-color: #ffcdd2; }
.alert-success { background: var(--clr-success-bg); color: var(--clr-success); border-color: #c8e6c9; }
.alert-warning { background: var(--clr-warning-bg); color: var(--clr-warning); border-color: #ffccbc; }

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: .4rem;
    padding: .55rem 1.2rem;
    border: 1px solid transparent;
    border-radius: var(--radius);
    font-family: var(--font);
    font-size: .92rem;
    font-weight: 600;
    cursor: pointer;
    transition: background var(--transition), color var(--transition), border-color var(--transition);
    text-decoration: none;
    white-space: nowrap;
    line-height: 1.4;
}

.btn:hover { text-decoration: none; }

.btn-primary { background: var(--clr-primary); color: #fff; border-color: var(--clr-primary); }
.btn-primary:hover { background: var(--clr-primary-hover); border-color: var(--clr-primary-hover); color: #fff; }

.btn-secondary { background: var(--clr-bg); color: var(--clr-text); border-color: var(--clr-border); }
.btn-secondary:hover { background: var(--clr-bg-secondary); color: var(--clr-text); }

.btn-danger { background: var(--clr-danger); color: #fff; border-color: var(--clr-danger); }
.btn-danger:hover { background: #a31d1d; border-color: #a31d1d; color: #fff; }

.btn-full { width: 100%; }
.btn-sm { padding: .3rem .75rem; font-size: .82rem; }

/* === БИБЛИОГРАФСКИ ЗАПИСИ — форма и приказ === */

.form-section {
    background: var(--clr-bg-secondary);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius-lg);
    padding: 1.25rem;
    margin-bottom: 1.25rem;
    box-shadow: var(--shadow-sm);
}

.form-section-title {
    font-size: .9rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .06em;
    color: var(--clr-text-muted);
    margin-bottom: 1rem;
    padding-bottom: .5rem;
    border-bottom: 1px solid var(--clr-border);
}

.form-row {
    display: flex;
    flex-wrap: wrap;
    gap: .75rem;
    align-items: flex-start;
}

.form-row .form-group { margin-bottom: 0; }
.flex-1 { flex: 1; min-width: 160px; }

/* Repeater */
.repeater { display: flex; flex-direction: column; gap: .5rem; margin-bottom: .6rem; }

.repeater-row {
    display: flex;
    gap: .5rem;
    align-items: center;
}

.repeater-row input[type="radio"] { flex-shrink: 0; accent-color: var(--clr-primary); }

/* Жанрови — листа чекбоксова */
.checkbox-list {
    display: flex;
    flex-wrap: wrap;
    gap: .4rem .75rem;
}

.checkbox-item {
    display: flex;
    align-items: center;
    gap: .35rem;
    font-size: .88rem;
    font-weight: 400;
    cursor: pointer;
}

.checkbox-item input[type="checkbox"] {
    width: auto;
    accent-color: var(--clr-primary);
}

/* Search bar */
.search-bar {
    display: flex;
    flex-wrap: wrap;
    gap: .5rem;
    margin-bottom: 1.25rem;
    align-items: center;
}

.search-input { flex: 1; min-width: 220px; }
.search-bar select { max-width: 220px; }

/* Пагинација */
.pagination {
    display: flex;
    align-items: center;
    gap: .75rem;
    margin-top: 1.25rem;
    justify-content: center;
}

.pagination-info { font-size: .88rem; color: var(--clr-text-muted); }

/* Badge — статус примерка */
.item-badge {
    display: inline-block;
    font-size: .72rem;
    font-weight: 700;
    padding: .2rem .6rem;
    border-radius: 999px;
    white-space: nowrap;
}
.item-badge-available  { background: var(--clr-success-bg); color: var(--clr-success); }
.item-badge-loaned     { background: var(--clr-warning-bg); color: var(--clr-warning); }
.item-badge-noloan     { background: var(--clr-accent-bg);  color: var(--clr-text-muted); }
.item-badge-danger     { background: var(--clr-danger-bg);  color: var(--clr-danger); }

/* Ознака полице при раздуживању */
.shelf-badge {
    display: inline-block;
    background: color-mix(in srgb, var(--clr-primary) 12%, var(--clr-bg));
    color: var(--clr-primary);
    border: 1px solid color-mix(in srgb, var(--clr-primary) 30%, transparent);
    border-radius: var(--radius);
    padding: .2rem .55rem;
    font-size: .82rem;
    font-weight: 700;
    letter-spacing: .02em;
    white-space: nowrap;
}

/* Badge — број записа */
.badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--clr-primary);
    color: #fff;
    font-size: .7rem;
    font-weight: 700;
    padding: .15rem .55rem;
    border-radius: 999px;
    margin-left: .4rem;
    vertical-align: middle;
}

/* Show layout — двоколонски */
.show-layout {
    display: grid;
    grid-template-columns: 1fr 280px;
    gap: 1.25rem;
    align-items: start;
}

.detail-row {
    display: flex;
    gap: .75rem;
    padding: .3rem 0;
    border-bottom: 1px solid var(--clr-border);
    font-size: .92rem;
    align-items: baseline;
}

.detail-row:last-child { border-bottom: none; }

.detail-label {
    min-width: 130px;
    flex-shrink: 0;
    font-size: .78rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .04em;
    color: var(--clr-text-muted);
}

/* Тагови */
.tags { display: flex; flex-wrap: wrap; gap: .3rem; }

.tag {
    display: inline-block;
    background: var(--clr-bg-secondary);
    border: 1px solid var(--clr-border);
    border-radius: 4px;
    padding: .15rem .55rem;
    font-size: .8rem;
}

.tag-primary {
    background: var(--clr-accent-bg);
    border-color: var(--clr-primary);
    color: var(--clr-primary);
    font-weight: 600;
}

.no-cover {
    padding: 2rem;
    background: var(--clr-bg-secondary);
    border: 1px dashed var(--clr-border);
    border-radius: var(--radius);
    color: var(--clr-text-muted);
    font-size: .85rem;
}

/* Required asterisk */
.required { color: var(--clr-danger); margin-left: .15rem; }

/* Дугмад за пресловљавање */
.translit-btns {
    display: flex;
    gap: .4rem;
    margin-top: .4rem;
}

@media (max-width: 768px) {
    .show-layout { grid-template-columns: 1fr; }
    .show-aside { order: -1; }
}

/* === СТАТУСНИ БЕЏЕВИ === */

.status-badge {
    display: inline-block;
    padding: .2rem .6rem;
    border-radius: 999px;
    font-size: .78rem;
    font-weight: 600;
    white-space: nowrap;
    border: 1px solid transparent;
}

.status-available    { background: #e8f5e9; color: #2e7d32; border-color: #c8e6c9; }
.status-loaned       { background: #fff3e0; color: #e65100; border-color: #ffccbc; }
.status-noloan       { background: #f5f5f5; color: #616161; border-color: #e0e0e0; }
.status-written-off  { background: #ffebee; color: #c62828; border-color: #ffcdd2; }
.status-processing   { background: #e3f2fd; color: #1565c0; border-color: #bbdefb; }
.status-lost         { background: #fce4ec; color: #880e4f; border-color: #f8bbd0; }
.status-default      { background: var(--clr-bg-secondary); color: var(--clr-text-muted); border-color: var(--clr-border); }

/* === ЗАДУЖИВАЊЕ === */

.loan-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
    margin-bottom: .5rem;
}

.row-overdue { background: var(--clr-danger-bg) !important; }

@media (max-width: 640px) {
    .loan-actions { grid-template-columns: 1fr; }
}

/* === РАДНО ВРИЈЕМЕ === */

.hours-layout {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 1.5rem;
    align-items: start;
}

.hours-week {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: .75rem;
}

.day-card {
    border-radius: var(--radius-lg);
    border: 1px solid var(--clr-border);
    padding: .75rem;
    background: var(--clr-bg);
}

.day-open   { border-color: #c8e6c9; }
.day-closed { background: var(--clr-bg-secondary); }

.day-name {
    font-weight: 700;
    font-size: .88rem;
    margin-bottom: .5rem;
}

.day-status { font-size: .8rem; color: var(--clr-text-muted); }

.day-slot {
    display: flex;
    align-items: center;
    gap: .35rem;
    margin-bottom: .3rem;
    flex-wrap: wrap;
}

.slot-time  { font-size: .85rem; font-weight: 600; color: #2e7d32; }
.slot-note  { font-size: .75rem; color: var(--clr-text-muted); flex: 1; }

.slot-delete {
    background: none;
    border: none;
    color: var(--clr-danger);
    cursor: pointer;
    font-size: 1rem;
    line-height: 1;
    padding: 0 .2rem;
    opacity: .55;
}
.slot-delete:hover { opacity: 1; }

@media (max-width: 768px) {
    .hours-layout { grid-template-columns: 1fr; }
}

/* === AUTOCOMPLETE === */

.autocomplete-wrap {
    position: relative;
}

.ac-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--clr-bg);
    border: 1px solid var(--clr-primary);
    border-top: none;
    border-radius: 0 0 var(--radius) var(--radius);
    box-shadow: var(--shadow);
    z-index: 200;
    max-height: 220px;
    overflow-y: auto;
}

.ac-item {
    padding: .45rem .75rem;
    font-size: .88rem;
    cursor: pointer;
    border-bottom: 1px solid var(--clr-border);
}

.ac-item:last-child { border-bottom: none; }
.ac-item:hover { background: var(--clr-accent-bg); }

.ac-item-main   { font-size: .88rem; color: var(--clr-text); }
.ac-item-sub    { font-size: .78rem; color: var(--clr-text-muted); margin-top: .1rem; }
.ac-item-badge  { display:inline-block; font-size:.7rem; padding:.1rem .4rem; border-radius:3px;
                  background:var(--clr-bg-secondary); border:1px solid var(--clr-border); margin-left:.3rem; }

/* === ШИФАРНИЦИ === */

.sif-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1rem;
}

.sif-card {
    display: flex;
    flex-direction: column;
    padding: 1.1rem 1.25rem;
    background: var(--clr-bg);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: border-color var(--transition), box-shadow var(--transition);
    text-decoration: none;
}

.sif-card:hover {
    border-color: var(--clr-primary);
    box-shadow: var(--shadow);
    text-decoration: none;
}

.sif-label {
    font-weight: 600;
    font-size: .92rem;
    color: var(--clr-text);
    display: block;
}

.sif-count {
    font-size: .78rem;
    color: var(--clr-text-muted);
    margin-top: .3rem;
    display: block;
}

.add-row {
    display: flex;
    flex-wrap: wrap;
    gap: .75rem;
    align-items: flex-start;
}

.add-row .form-group { margin-bottom: 0; }

.btn-group {
    display: flex;
    gap: .4rem;
    flex-wrap: nowrap;
}

/* === МОДАЛИ === */
/* урадити по потреби */

/* === ТАМНА ТЕМА === */

[data-theme="dark"] {
    --clr-primary:       #A52424;
    --clr-primary-hover: #C22B2B;
    --clr-accent-bg:     #1A1A1A;
    --clr-bg:            #121212;
    --clr-bg-secondary:  #1E1E1E;
    --clr-text:          #F0F0F0;
    --clr-text-muted:    #AAAAAA;
    --clr-border:        #333333;
}

/* === РЕСПОНЗИВНОСТ === */

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        transition: transform var(--transition);
    }

    .sidebar.open { transform: translateX(0); }

    .admin-main { margin-left: 0; }

    .stats-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 480px) {
    .stats-grid { grid-template-columns: 1fr; }
    .auth-card { padding: 2rem 1.25rem; }
}