/* ============================================================
   PCI Books — Design System
   Brand: #007b88 (primary teal) / #6dc4bc (light teal)
   Light + dark mode via CSS custom properties
   ============================================================ */

:root {
    /* Brand colors from PCI logo */
    --pci-teal:        #007b88;
    --pci-teal-dark:   #005f6a;
    --pci-teal-mid:    #009aaa;
    --pci-teal-light:  #6dc4bc;
    --pci-teal-pale:   #e6f5f6;

    /* Light mode */
    --bg:              #ffffff;
    --bg-secondary:    #f4f8f9;
    --bg-card:         #ffffff;
    --border:          #cce4e7;

    --text:            #1a2e30;
    --text-muted:      #527278;
    --text-on-teal:    #ffffff;

    --link:            #007b88;
    --link-hover:      #005f6a;

    --nav-bg:          #005f6a;
    --nav-text:        #ffffff;
    --nav-hover-bg:    #007b88;
    --nav-active-border: #6dc4bc;

    --header-bg:       #003840;
    --header-border:   #005f6a;

    --btn-bg:          #007b88;
    --btn-text:        #ffffff;
    --btn-hover-bg:    #005f6a;

    --btn-amazon-bg:   #ff9900;
    --btn-amazon-text: #111111;
    --btn-amazon-hover:#e68a00;

    --shadow-sm:  0 1px 3px rgba(0,123,136,.08);
    --shadow-md:  0 4px 12px rgba(0,123,136,.12);
    --shadow-lg:  0 8px 24px rgba(0,123,136,.15);

    --transition: .2s ease;
    --max-width:  1200px;
    --radius:     6px;
    --radius-lg:  10px;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg:              #0d1e20;
        --bg-secondary:    #122527;
        --bg-card:         #172b2e;
        --border:          #1f4044;
        --text:            #d6edef;
        --text-muted:      #7ab5bb;
        --pci-teal-pale:   #0d2e30;
        --link:            #6dc4bc;
        --link-hover:      #9ddad5;
        --nav-bg:          #081518;
        --nav-text:        #b8e0e4;
        --nav-hover-bg:    #0d2427;
        --header-bg:       #040d0f;
        --header-border:   #0d2427;
        --btn-hover-bg:    #009aaa;
        --shadow-sm:  0 1px 3px rgba(0,0,0,.3);
        --shadow-md:  0 4px 12px rgba(0,0,0,.4);
        --shadow-lg:  0 8px 24px rgba(0,0,0,.5);
    }
}

[data-theme="dark"] {
    --bg:              #0d1e20;
    --bg-secondary:    #122527;
    --bg-card:         #172b2e;
    --border:          #1f4044;
    --text:            #d6edef;
    --text-muted:      #7ab5bb;
    --pci-teal-pale:   #0d2e30;
    --link:            #6dc4bc;
    --link-hover:      #9ddad5;
    --nav-bg:          #081518;
    --nav-text:        #b8e0e4;
    --nav-hover-bg:    #0d2427;
    --header-bg:       #040d0f;
    --header-border:   #0d2427;
    --btn-hover-bg:    #009aaa;
    --shadow-sm:  0 1px 3px rgba(0,0,0,.3);
    --shadow-md:  0 4px 12px rgba(0,0,0,.4);
    --shadow-lg:  0 8px 24px rgba(0,0,0,.5);
}

/* --- Reset --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }
body {
    font-family: 'Raleway', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text);
    background: var(--bg-secondary);
    transition: background var(--transition), color var(--transition);
}
a { color: var(--link); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--link-hover); text-decoration: underline; }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }
h1,h2,h3,h4,h5,h6 { font-family: Georgia,"Times New Roman",serif; line-height:1.25; color:var(--text); }
h1 { font-size: 2rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.2rem; }
p { margin-bottom: 1rem; }
p:last-child { margin-bottom: 0; }

/* --- Layout --- */
.site-wrapper { min-height: 100vh; display: flex; flex-direction: column; }

.container { width:100%; max-width:var(--max-width); margin:0 auto; padding:0 1.25rem; }

/* --- Header --- */
.site-header {
    background: var(--header-bg);
    border-bottom: 2px solid var(--header-border);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-md);
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: .75rem 1.5rem;
    max-width: var(--max-width);
    margin: 0 auto;
    gap: 1rem;
}
.site-logo { display: flex; align-items: center; text-decoration: none; flex-shrink: 0; }
.site-logo:hover { opacity: .9; text-decoration: none; }
.logo-svg { height: 36px; width: auto; }

.header-actions { display: flex; align-items: center; gap: .6rem; flex-shrink: 0; }
.header-search { display: flex; align-items: center; background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.2); border-radius: 20px; padding: .2rem .2rem .2rem .75rem; gap: .25rem; flex-shrink: 0; transition: background var(--transition); }
.header-search:focus-within { background: rgba(255,255,255,.18); border-color: rgba(255,255,255,.4); }
.header-search input { background: none; border: none; outline: none; color: #fff; font-size: .825rem; width: 160px; }
.header-search input::placeholder { color: rgba(255,255,255,.5); }
.header-search button { background: none; border: none; color: rgba(255,255,255,.7); cursor: pointer; padding: .25rem .4rem; display: flex; align-items: center; border-radius: 12px; }
.header-search button:hover { color: #fff; background: rgba(255,255,255,.1); }
@media (max-width: 600px) { .header-search input { width: 100px; } }

/* --- Header nav --- */
.header-nav {
    display: flex;
    align-items: center;
    flex: 1;
    justify-content: flex-end;
    overflow-x: auto;
    scrollbar-width: none;
    gap: .1rem;
}
.header-nav::-webkit-scrollbar { display: none; }
.header-nav a {
    color: rgba(255,255,255,.75);
    padding: .5rem .9rem;
    font-size: .875rem;
    font-weight: 500;
    white-space: nowrap;
    border-radius: 4px;
    text-decoration: none;
    transition: all var(--transition);
}
.header-nav a:hover, .header-nav a.active {
    color: #fff;
    background: rgba(255,255,255,.12);
    text-decoration: none;
}

/* --- Tagline bar --- */
.site-tagline { background: var(--nav-bg); }
.tagline-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: .45rem 1.5rem;
    font-size: .7rem;
    color: rgba(255,255,255,.5);
    letter-spacing: .08em;
    text-transform: uppercase;
}

/* --- Main --- */
.site-main { flex: 1; }

.page-layout {
    display: grid;
    grid-template-columns: 240px 1fr;
    gap: 1.5rem;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 1.5rem 1.5rem;
    align-items: start;
}
@media (max-width: 768px) { .page-layout { grid-template-columns: 1fr; } .sidebar { display: none; } }

/* --- Sidebar --- */
.sidebar {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.25rem;
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 80px;
}
.sidebar-title {
    font-size: .72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .08em;
    color: var(--text-muted);
    margin-bottom: .75rem;
    padding-bottom: .5rem;
    border-bottom: 1px solid var(--border);
}
.sidebar ul { display: flex; flex-direction: column; gap: .1rem; }
.sidebar ul li a {
    display: block;
    padding: .38rem .6rem;
    border-radius: var(--radius);
    font-size: .85rem;
    color: var(--text);
    transition: all var(--transition);
}
.sidebar ul li a:hover, .sidebar ul li a.active {
    background: var(--pci-teal-pale);
    color: var(--pci-teal);
    text-decoration: none;
}
@media (prefers-color-scheme: dark) {
    .sidebar ul li a:hover, .sidebar ul li a.active { background: rgba(0,123,136,.2); color: var(--pci-teal-light); }
}
[data-theme="dark"] .sidebar ul li a:hover,
[data-theme="dark"] .sidebar ul li a.active { background: rgba(0,123,136,.2); color: var(--pci-teal-light); }

/* --- Content Area --- */
.content-area { background: var(--bg); border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); overflow: hidden; }
.content-header { padding: 1.5rem 2rem 1rem; border-bottom: 1px solid var(--border); }
.content-body { padding: 1.5rem 2rem; }
.page-full { max-width: var(--max-width); margin: 2rem auto; padding: 0 1.5rem; }

/* --- Breadcrumb --- */
.breadcrumb { font-size: .8rem; color: var(--text-muted); margin-bottom: 1rem; display: flex; gap: .4rem; align-items: center; flex-wrap: wrap; }
.breadcrumb a { color: var(--text-muted); }
.breadcrumb a:hover { color: var(--link); }
.breadcrumb-sep { color: var(--border); }

/* --- Flash --- */
.flash-success { padding: .75rem 1rem; border-radius: var(--radius); background: #d4edda; color: #155724; border: 1px solid #c3e6cb; margin-bottom: .75rem; font-size: .875rem; }
.flash-error   { padding: .75rem 1rem; border-radius: var(--radius); background: #f8d7da; color: #721c24; border: 1px solid #f5c6cb; margin-bottom: .75rem; font-size: .875rem; }

/* --- Book Grid --- */
.books-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 1.25rem;
}
@media (max-width: 480px) { .books-grid { grid-template-columns: repeat(2,1fr); gap:.75rem; } }
.search-page-header { display: flex; align-items: center; gap: 1rem; flex-wrap: wrap; }
.search-page-form { display: flex; gap: .5rem; flex: 1; min-width: 240px; }
.search-page-form .form-control { flex: 1; }

/* --- Book Card --- */
.book-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition), box-shadow var(--transition);
    display: flex;
    flex-direction: column;
}
.book-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.book-card-cover { display: block; aspect-ratio: 3/4; overflow: hidden; background: var(--bg-secondary); position: relative; }
.book-card-cover img { width:100%; height:100%; object-fit:cover; object-position:top center; transition: transform .3s ease; }
.book-card:hover .book-card-cover img { transform: scale(1.04); }
.book-card-cover-placeholder { width:100%; height:100%; display:flex; align-items:center; justify-content:center; background:var(--pci-teal-pale); color:var(--pci-teal); font-size:2.5rem; }
@media (prefers-color-scheme: dark) {
    .book-card-cover-placeholder { background: rgba(0,123,136,.15); color:var(--pci-teal-light); }
}
[data-theme="dark"] .book-card-cover-placeholder { background: rgba(0,123,136,.15); color:var(--pci-teal-light); }
.book-card-badge { position:absolute; top:.5rem; right:.5rem; background:var(--pci-teal); color:#fff; font-size:.65rem; font-weight:700; text-transform:uppercase; letter-spacing:.05em; padding:.2rem .5rem; border-radius:3px; }
.book-card-body { padding:.875rem; flex:1; display:flex; flex-direction:column; gap:.4rem; }
.book-card-title { font-family:Georgia,serif; font-size:.875rem; font-weight:bold; line-height:1.3; color:var(--text); }
.book-card-title a { color:inherit; }
.book-card-title a:hover { color:var(--link); text-decoration:none; }
.book-card-author { font-size:.75rem; color:var(--text-muted); }
.book-card-footer { margin-top:auto; padding-top:.6rem; display:flex; align-items:center; justify-content:space-between; gap:.4rem; flex-wrap:wrap; }
.book-price { font-weight:700; font-size:.875rem; color:var(--pci-teal); }
@media (prefers-color-scheme: dark) {
    .book-price { color:var(--pci-teal-light); }
}
[data-theme="dark"] .book-price { color:var(--pci-teal-light); }

/* --- Book Detail --- */
.book-detail { display:grid; grid-template-columns:240px 1fr; gap:2rem; align-items:start; }
@media (max-width:640px) { .book-detail { grid-template-columns:1fr; } }
.book-detail-cover { border-radius:var(--radius-lg); overflow:hidden; box-shadow:var(--shadow-lg); border:1px solid var(--border); }
.book-detail-cover img { width:100%; display:block; }
.book-detail-info { display:flex; flex-direction:column; gap:1.25rem; }
.book-detail-title { font-size:1.6rem; line-height:1.25; }
.book-meta-table { width:100%; border-collapse:collapse; font-size:.875rem; }
.book-meta-table th,.book-meta-table td { padding:.5rem .75rem; border-bottom:1px solid var(--border); text-align:left; }
.book-meta-table th { color:var(--text-muted); font-weight:600; width:130px; }
.book-actions { display:flex; flex-direction:column; align-items:flex-start; gap:.5rem; }
.book-actions-secondary { display:flex; gap:.5rem; flex-wrap:wrap; }
.book-description { font-size:.95rem; line-height:1.75; color:var(--text); margin-top:2rem; padding-top:2rem; border-top:1px solid var(--border); }
.book-description h3 { margin-bottom:.75rem; }

/* --- Reviews --- */
.reviews-section { margin-top:2.5rem; }
.reviews-section h3 { font-size:1.1rem; margin-bottom:1.25rem; padding-bottom:.5rem; border-bottom:1px solid var(--border); }
.review-card { background:var(--bg-secondary); border-left:3px solid var(--pci-teal); border-radius:0 var(--radius) var(--radius) 0; padding:1rem 1.25rem; margin-bottom:1rem; }
@media (prefers-color-scheme: dark) {
    .review-card { background:var(--bg-card); }
}
[data-theme="dark"] .review-card { background:var(--bg-card); }
.review-quote { font-style:italic; color:var(--text); margin-bottom:.5rem; font-size:.95rem; line-height:1.65; }
.review-quote::before { content:'\201C'; }
.review-quote::after  { content:'\201D'; }
.review-attribution { font-size:.8rem; color:var(--text-muted); text-align:right; }

/* --- Buttons --- */
.btn {
    display:inline-flex; align-items:center; justify-content:center; gap:.4rem;
    padding:.6rem 1.25rem; border-radius:var(--radius); font-size:.875rem; font-weight:600;
    border:none; cursor:pointer; text-decoration:none; transition:all var(--transition); white-space:nowrap;
}
.btn-primary { background:var(--btn-bg); color:var(--btn-text); }
.btn-primary:hover { background:var(--btn-hover-bg); color:var(--btn-text); text-decoration:none; transform:translateY(-1px); box-shadow:var(--shadow-sm); }
.btn-amazon { background:var(--btn-amazon-bg); color:var(--btn-amazon-text); font-size:.95rem; padding:.7rem 1.5rem; }
.btn-amazon:hover { background:var(--btn-amazon-hover); color:var(--btn-amazon-text); text-decoration:none; transform:translateY(-1px); box-shadow:var(--shadow-md); }
.btn-secondary { background:transparent; border:1px solid var(--border); color:var(--text); }
.btn-secondary:hover { background:var(--bg-secondary); color:var(--text); text-decoration:none; }
.btn-danger { background:#c0392b; color:#fff; }
.btn-danger:hover { background:#a93226; color:#fff; text-decoration:none; }
.btn-sm { padding:.35rem .75rem; font-size:.8rem; }
.btn-lg { padding:.85rem 2rem; font-size:1rem; }

/* --- Category Cards --- */
.categories-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(200px,1fr)); gap:1rem; }
.category-card { position:relative; background:var(--bg-card); border:1px solid var(--border); border-radius:var(--radius-lg); padding:1.25rem; transition:all var(--transition); display:flex; flex-direction:column; gap:.4rem; cursor:pointer; }
.category-card:hover { border-color:var(--pci-teal); box-shadow:var(--shadow-md); transform:translateY(-2px); }
.category-card a { font-weight:600; font-size:.95rem; color:var(--text); text-decoration:none; }
.category-card a::after { content:''; position:absolute; inset:0; }
.category-count { font-size:.8rem; color:var(--text-muted); }
.category-icon { width:2rem; height:2rem; margin-bottom:.25rem; }
.category-icon img { width:2rem; height:2rem; display:block; }


/* --- Forms --- */
.form-group { margin-bottom:1.25rem; }
.form-label { display:block; font-size:.875rem; font-weight:600; color:var(--text); margin-bottom:.4rem; }
.form-control { width:100%; padding:.6rem .875rem; border:1px solid var(--border); border-radius:var(--radius); background:var(--bg); color:var(--text); font-size:.95rem; font-family:inherit; transition:border-color var(--transition),box-shadow var(--transition); }
.form-control:focus { outline:none; border-color:var(--pci-teal); box-shadow:0 0 0 3px rgba(0,123,136,.15); }
textarea.form-control { min-height:140px; resize:vertical; }
.form-error { font-size:.8rem; color:#c0392b; margin-top:.3rem; }
.form-card { background:var(--bg-card); border:1px solid var(--border); border-radius:var(--radius-lg); padding:2rem; box-shadow:var(--shadow-sm); }

/* --- Admin --- */
.data-table { width:100%; border-collapse:collapse; font-size:.875rem; }
.data-table th { background:var(--bg-secondary); font-weight:600; text-transform:uppercase; font-size:.72rem; letter-spacing:.05em; color:var(--text-muted); padding:.6rem .875rem; border-bottom:2px solid var(--border); text-align:left; }
.data-table td { padding:.7rem .875rem; border-bottom:1px solid var(--border); vertical-align:middle; }
.data-table tbody tr:nth-child(even) { background:var(--bg-secondary); }
.data-table tbody tr:hover { background:var(--pci-teal-pale); }
.data-table .actions { display:flex; gap:.4rem; }

.admin-layout { display:grid; grid-template-columns:220px 1fr; min-height:calc(100vh - 120px); }
.admin-sidebar { background:var(--bg-card); border-right:1px solid var(--border); padding:1.5rem 0; }
.admin-sidebar-title { font-size:.7rem; font-weight:700; text-transform:uppercase; letter-spacing:.08em; color:var(--text-muted); padding:0 1.25rem; margin-bottom:.5rem; }
.admin-sidebar-nav a { display:block; padding:.55rem 1.25rem; font-size:.875rem; color:var(--text); transition:all var(--transition); border-left:3px solid transparent; }
.admin-sidebar-nav a:hover,.admin-sidebar-nav a.active { background:var(--pci-teal-pale); color:var(--pci-teal); border-left-color:var(--pci-teal); text-decoration:none; }
@media (prefers-color-scheme: dark) {
    .admin-sidebar-nav a:hover, .admin-sidebar-nav a.active { background:rgba(0,123,136,.2); color:var(--pci-teal-light); border-left-color:var(--pci-teal-light); }
}
[data-theme="dark"] .admin-sidebar-nav a:hover,
[data-theme="dark"] .admin-sidebar-nav a.active { background:rgba(0,123,136,.2); color:var(--pci-teal-light); border-left-color:var(--pci-teal-light); }
.admin-content { padding:2rem 1.5rem; background:var(--bg); min-width:0; }
.admin-layout > .admin-content { padding:2rem 1.5rem; }
.admin-content-header { display:flex; align-items:center; justify-content:space-between; margin-bottom:1.5rem; gap:1rem; }
@media (max-width:768px) { .admin-layout { grid-template-columns:1fr; } .admin-sidebar { display:none; } .admin-layout > .admin-content { padding:1.5rem; } }

/* --- Hero --- */
.hero { background:var(--pci-teal); color:#fff; padding:3.5rem 1.5rem; text-align:center; }
.hero h1 { color:#fff; font-size:2.2rem; margin-bottom:.75rem; }
.hero p { font-size:1.05rem; opacity:.9; margin-bottom:1.75rem; max-width:600px; margin-left:auto; margin-right:auto; }

/* --- Section --- */
.section-header { display:flex; align-items:baseline; justify-content:space-between; margin-bottom:1.25rem; gap:1rem; }
.section-header h1,.section-header h2 { margin:0; }
.featured-badge { display:inline-flex; align-items:center; background:var(--pci-teal); color:#fff; font-size:.7rem; font-weight:700; text-transform:uppercase; letter-spacing:.05em; padding:.2rem .6rem; border-radius:3px; }

/* --- Footer --- */
.site-footer { background:var(--header-bg); color:rgba(255,255,255,.55); padding:1.5rem 1.5rem; border-top:1px solid var(--header-border); font-size:.8rem; }
.footer-inner { max-width:var(--max-width); margin:0 auto; display:flex; align-items:center; justify-content:space-between; gap:1rem; flex-wrap:wrap; }
.footer-links { display:flex; gap:1.25rem; }
.footer-links a { color:rgba(255,255,255,.45); }
.footer-links a:hover { color:rgba(255,255,255,.9); text-decoration:none; }

/* --- Login --- */
.login-page { min-height:80vh; display:flex; align-items:center; justify-content:center; padding:2rem 1.25rem; }
.login-card { background:var(--bg-card); border:1px solid var(--border); border-radius:var(--radius-lg); padding:2.5rem; width:100%; max-width:400px; box-shadow:var(--shadow-lg); }
.login-title { font-size:1.4rem; margin-bottom:.25rem; }
.login-subtitle { font-size:.875rem; color:var(--text-muted); margin-bottom:1.75rem; }

/* --- Pagination --- */
.pagination { display:flex; gap:.3rem; justify-content:center; margin-top:2rem; }
.pagination a,.pagination span { padding:.4rem .7rem; border:1px solid var(--border); border-radius:var(--radius); font-size:.875rem; color:var(--text); }
.pagination a:hover { background:var(--pci-teal-pale); text-decoration:none; }
.pagination .current { background:var(--pci-teal); color:#fff; border-color:var(--pci-teal); }
.pagination .disabled { opacity:.4; cursor:default; pointer-events:none; }

/* --- Utility --- */
.text-muted { color:var(--text-muted); }
.text-center { text-align:center; }
.mt-1{margin-top:.5rem;} .mt-2{margin-top:1rem;} .mt-3{margin-top:1.5rem;}
.mb-1{margin-bottom:.5rem;} .mb-2{margin-bottom:1rem;} .mb-3{margin-bottom:1.5rem;}
.d-flex{display:flex;} .gap-1{gap:.5rem;} .gap-2{gap:1rem;}
.align-center{align-items:center;} .justify-between{justify-content:space-between;}
.w-100{width:100%;}

/* --- Button variants --- */
.btn-header { color: rgba(255,255,255,.7); border-color: rgba(255,255,255,.3); }
.btn-ghost { background: rgba(255,255,255,.15); color: #fff; border: 1px solid rgba(255,255,255,.4); }
.btn-ghost:hover { background: rgba(255,255,255,.25); color: #fff; text-decoration: none; }
.btn-xs { padding: .2rem .5rem; font-size: .72rem; }

/* --- Hero inner --- */
.hero-inner { max-width: 700px; margin: 0 auto; }

/* --- Home sections --- */
.home-section { margin-bottom: 2.5rem; }

/* --- Book detail additions --- */
.author-row { display: flex; align-items: center; gap: .75rem; margin-bottom: .5rem; }
.author-photo { width: 48px; height: 48px; border-radius: 50%; object-fit: cover; border: 2px solid var(--border); flex-shrink: 0; }
.book-detail-cover .book-card-cover-placeholder { aspect-ratio: 3/4; font-size: 5rem; }
.review-card .btn { margin-bottom: .5rem; }

/* --- Content header --- */
.content-header .breadcrumb { margin-bottom: .5rem; }
.content-header .text-muted { margin-top: .25rem; }

/* --- Form layouts --- */
.form-card-wide { max-width: 800px; }
.form-card-narrow { max-width: 500px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem; }
.form-group-full { grid-column: 1 / -1; }
.form-actions { display: flex; justify-content: flex-end; gap: .75rem; margin-top: .5rem; }

/* --- Admin dashboard cards --- */
.admin-card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 1rem; }
.admin-card { display: block; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 1.5rem; text-align: center; text-decoration: none; color: var(--text); transition: box-shadow var(--transition); }
.admin-card:hover { box-shadow: var(--shadow-md); text-decoration: none; color: var(--text); }
.admin-card-icon { font-size: 2.5rem; color: var(--pci-teal); margin-bottom: .5rem; }
.admin-card-label { font-size: 1.1rem; font-weight: 600; }
.admin-card-desc { font-size: .8rem; color: var(--text-muted); margin-top: .25rem; }

/* --- Admin table helpers --- */
.table-scroll { overflow-x: auto; }
.table-cover-cell { width: 50px; }
.table-cover-img { width: 40px; height: auto; border-radius: 3px; display: block; }
.table-cover-placeholder { font-size: 1.5rem; }
.text-sm { font-size: .8rem; }
.badge-teal { color: var(--pci-teal); font-weight: 600; }

/* --- Contact --- */
.contact-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; align-items: stretch; margin-top: 1rem; }
@media (max-width: 768px) { .contact-layout { grid-template-columns: 1fr; } }
.contact-office { padding: 1.25rem 1.5rem; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); }
.contact-office h3 { font-size: .8rem; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; color: var(--pci-teal); margin-bottom: .75rem; }
.contact-office address { font-style: normal; color: var(--text); line-height: 1.7; margin-bottom: .5rem; }
.contact-office p { font-size: .875rem; color: var(--text-muted); margin: .25rem 0; }
.contact-office p a { color: var(--pci-teal); }
.contact-bulk { border-color: var(--pci-teal-light); }
.thanks-card { text-align: center; padding: 3rem 2rem; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); margin-top: 2rem; }
.thanks-icon { font-size: 3rem; color: var(--pci-teal); margin-bottom: 1rem; }
.thanks-card h1 { margin-bottom: .75rem; }
.thanks-card p { color: var(--text-muted); margin-bottom: 1.5rem; }

/* --- Error Pages --- */
.error-page { text-align: center; padding: 4rem 2rem; max-width: 560px; }
.error-page-code { font-size: 7rem; font-weight: 800; line-height: 1; color: var(--pci-teal); opacity: .15; letter-spacing: -.04em; margin-bottom: -.5rem; }
.error-page-title { font-size: 2rem; font-weight: 700; margin-bottom: 1rem; }
.error-page-message { color: var(--text-muted); font-size: 1.05rem; line-height: 1.7; margin-bottom: 2rem; }
.error-page-actions { display: flex; gap: .75rem; justify-content: center; flex-wrap: wrap; }

/* --- Page width modifiers --- */
.page-full-md { max-width: 640px; }
.page-full-lg { max-width: 800px; }

/* --- Login additions --- */
.login-logo { text-align: center; margin-bottom: 1.5rem; }
.login-logo img { height: 40px; margin: 0 auto 1rem; display: block; }
.login-back { text-align: center; margin-top: 1.25rem; }
.login-back a { font-size: .8rem; color: var(--text-muted); }

/* --- TOC Modal --- */
.toc-modal { display:none; position:fixed; inset:0; background:rgba(0,0,0,.6); z-index:1000; align-items:center; justify-content:center; padding:1.5rem; }
.toc-modal.is-open { display:flex; }
.toc-modal-dialog { background:var(--bg-card); border-radius:var(--radius-lg); box-shadow:var(--shadow-lg); max-width:700px; width:100%; max-height:90vh; display:flex; flex-direction:column; overflow:hidden; }
.toc-modal-header { display:flex; align-items:center; justify-content:space-between; padding:.875rem 1.25rem; background:var(--header-bg); gap:1rem; flex-shrink:0; }
.toc-modal-title { font-size:.875rem; color:rgba(255,255,255,.8); font-weight:500; white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }
.toc-modal-close { background:none; border:none; color:rgba(255,255,255,.7); font-size:1.5rem; line-height:1; cursor:pointer; padding:.1rem .4rem; border-radius:3px; }
.toc-modal-close:hover { color:#fff; background:rgba(255,255,255,.15); }
.toc-modal-body { overflow-y:auto; display:flex; align-items:flex-start; justify-content:center; padding:.5rem; }
.toc-modal-body img { max-width:100%; height:auto; display:block; border-radius:var(--radius); }