.container, header nav {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 10px;
}

h1 {
    margin-bottom: 1rem;
}

.table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
}

.table th, .table td {
    border: 1px solid #ddd;
    padding: 0.75rem;
}

.table th {
    background-color: #f7f7f7;
}

.error {
    color: #c00;
    font-size: 0.9em;
}

/* ==========================
   Responsive header & menu
   ========================== */

/* basic layout for nav in header fragment */
header nav {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0;
}

header nav a {
    color: inherit;
    text-decoration: none;
    padding: 0.35rem 0.5rem;
}

header nav a:hover,
header nav a:focus {
    text-decoration: underline;
}

.hamburger-btn {
    display: inline-block;
    background: none;
    border: 0;
    font-size: 1.25rem;
    line-height: 1;
    padding: 0.25rem 0.5rem;
    cursor: pointer;
}

/* sidebar base inside header fragment */
.sidebar {
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    width: 280px;
    max-width: 90vw;
    background: #155ec2 !important; /* slightly darker blue than header #1a73e8 */
    color: #fff !important;
    box-shadow: 2px 0 12px rgba(0, 0, 0, 0.35);
    transform: translateX(-100%);
    transition: transform 0.25s ease;
    z-index: 3100; /* above hamburger and overlay */
    overflow: auto;
    padding: 1rem;
}

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

.sidebar .close-btn {
    display: block;
    margin-bottom: 1rem;
    color: #fff !important;
    text-decoration: none;
    font-weight: 600;
}

.sidebar h3 {
    margin-top: 0;
    color: #fff !important;
}

.sidebar a {
    color: #fff !important;
    text-decoration: none !important;
}

.sidebar a:hover,
.sidebar a:focus {
    text-decoration: underline !important;
    color: #ddd !important;
}

.menu-categories {
    list-style: none;
    padding: 0;
    margin: 0;
}

.menu-categories li {
    margin: 0.5rem 0;
}

/* search form in header */
header form[th\:action], /* selector includes thymeleaf-processed form */
header form {
    display: inline-flex;
    gap: 0.25rem;
    align-items: center;
    width: auto; /* changed from 100% so it doesn't push other nav items */
    text-align: right;
}

/* ensure hamburger is hidden while sidebar open (script adds body.sidebar-open) */
body.sidebar-open .hamburger-btn {
    display: none !important;
}

/* ensure search input has clear contrast */
header form input[type="text"] {
    padding: 0.35rem 0.5rem;
    border: 1px solid rgba(26,115,232,0.15);
    border-radius: 6px;
    background: var(--bg);
    color: #111; /* ensure text is visible */
    min-width: 120px;
}

/* make the header search button use the app primary blue so it's readable and consistent
   and remove special casing for mobile so it's the same on desktop and mobile */
header nav form button,
header form button {
    padding: 0.35rem 0.6rem;
    border-radius: 6px;
    border: 1px solid var(--blue-300);
    background: var(--blue-500) !important;
    color: #fff !important;
    cursor: pointer;
    font-weight: 600;
    z-index: 2000; /* ensure button sits above background but below overlay/sidebar */
}

header nav form button:hover,
header form button:hover {
    background: var(--blue-600) !important;
    transform: translateY(-1px);
}

/* posts list responsive tweaks */
.container ul {
    padding: 0;
}

.container ul li {
    list-style: none;
}

.container img {
    width: 100%;
    height: auto;
    display: block;
    max-width: 100%;
    object-fit: cover;
}

/* small screens: collapse nav links and show hamburger */
@media (max-width: 699px) {
    header nav {
        align-items: center;
    }

    /* show hamburger */
    header .hamburger-btn, .hamburger-btn {
        display: inline-block !important;
        visibility: visible !important;
        z-index: 1200 !important; /* on top of overlay */
        color: #fff !important;
        border-radius: 6px !important;
        font-size: 1.4rem !important;
        min-width: 44px;
        box-sizing: content-box;
    }

    header nav a.nav-home {
        display: inline-block;
    }

    /* show search as a compact input or move into sidebar where appropriate */
    /* show header search on mobile as a compact inline form */
    header > nav > form { display: inline-flex !important; margin-left: 0.5rem; align-items: center; }
    header > nav > form input[type="text"] { width: 120px !important; }
    /* mobile sidebar search is visible inside sidebar */
    .mobile-search { display: block; }

    /* posts list stack vertically: thumbnail left, content right with better spacing */
    .container ul li { display: block; padding: 0.75rem 0; border-bottom: 1px solid rgba(0,0,0,0.06); }
    .container ul li > div { display:flex !important; flex-direction:row !important; gap:12px; align-items:flex-start; }
    .container ul li img { flex: 0 0 100px; width: 100px; height: auto; object-fit:cover; border-radius:4px; }
    .container ul li div > div { flex:1; }
    .container ul li h2 { margin:0 0 6px 0; font-size:1.05rem; }
    .container ul li h4 { margin:0 0 8px 0; font-size:0.95rem; color:#666; }
    .container ul li .meta { font-size:0.85rem; color:#999; margin-bottom:6px; }
}

/* medium+ screens: show nav links and hide hamburger */
@media (min-width: 700px) {
    .hamburger-btn {
        display: none;
    }
    header nav a {
        display: inline-block;
    }
    header form { margin-left: auto; }
    header form input[type="text"] { width: 220px; }
    .mobile-search { display: none; }
}

/* accessibility: make sure sidebar overlay covers full viewport */
.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 3000; /* sits beneath sidebar but above rest */
}

/* ensure footer/main layout spacing on small screens */
@media (max-width: 420px) {
    .container {
        margin: 1rem;
        padding: 0 0.25rem;
    }

    header form input[type="text"] {
        width: 90px;
    }
}

/* small improvements for search results and category pages */
.search-results h1,
.category-title {
    font-size: 1.25rem;
}

/* ensure long titles wrap nicely */
.post-title {
    word-break: break-word;
}

/* utility */
.sr-only {
    position: absolute;
    left: -9999px;
    top: auto;
    width: 1px;
    height: 1px;
    overflow: hidden;
}

/* ensure mobile search hidden by default on desktop */
.mobile-search { display: none; }

/* ==========================
   Component styles (forms, buttons, inputs)
   Blue palette tuned for a blog
   ========================== */
:root{
    --blue-50: #eaf3ff;
    --blue-100:#d4e7ff;
    --blue-300:#7fb9ff;
    --blue-500:#1a73e8; /* primary */
    --blue-600:#155ec2;
    --blue-700:#0f4aa0;
    --muted:#6c7a89;
    --bg:#ffffff;
}

/* Base typography for controls */
input, select, textarea, button {
    font-family: inherit;
    font-size: 1rem;
}

/* Form controls */
input[type="text"],
input[type="email"],
input[type="password"],
input[type="search"],
input[type="file"],
select,
textarea {
    display: block;
    width: 100%;
    box-sizing: border-box;
    padding: 0.5rem 0.65rem;
    border: 1px solid rgba(26,115,232,0.15);
    border-radius: 8px;
    background: var(--bg);
    color: #111;
    transition: box-shadow 150ms ease, border-color 150ms ease;
    outline: none;
}

input::placeholder, textarea::placeholder {
    color: #9aa6b2;
}

input:focus, select:focus, textarea:focus {
    border-color: var(--blue-500);
    box-shadow: 0 4px 12px rgba(26,115,232,0.08), 0 0 0 4px rgba(26,115,232,0.10);
}

.form-group {
    margin-bottom: 10px;
}

/* Labels and form groups */
.form-group label, label {
    display: block;
    margin-bottom: 0.25rem;
    color: var(--muted);
    font-weight: 600;
}

/* Textarea */
textarea { min-height: 140px; resize: vertical; }

/* File input wrapper (for nicer upload UI) */
.file-input-wrapper { display:flex; gap:0.5rem; align-items:center; }
input[type="file"] { padding: 0.35rem; }

/* Buttons */
button, .btn {
    display: inline-block;
    padding: 0.45rem 0.8rem;
    border-radius: 8px;
    border: 1px solid transparent;
    background: var(--blue-500);
    color: #fff;
    cursor: pointer;
    text-decoration: none;
    font-weight: 600;
    transition: transform 80ms ease, background 120ms ease, box-shadow 120ms ease;
    box-shadow: 0 2px 6px rgba(16,66,122,0.06);
}

button:hover, .btn:hover { background: var(--blue-600); transform: translateY(-1px); }
button:active, .btn:active { transform: translateY(0); }

.btn-outline {
    background: transparent;
    color: var(--blue-700);
    border-color: rgba(26,115,232,0.12);
}

.btn-primary { background: var(--blue-500); border-color: var(--blue-500); color: #fff; }

/* specific edit button used in post read */
.btn-edit {
    background: var(--blue-600);
    border-color: var(--blue-600);
    color: #fff;
    padding: 0.4rem 0.6rem;
    border-radius: 6px;
}

/* disabled state */
button[disabled], .btn[disabled], .disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* small helper text under controls */
.form-note { font-size: 0.85rem; color: #6c7a89; margin-top: 0.35rem; }

/* compact forms in header */
header form input[type="text"], header form button { height: 36px; }

/* make sure controls look good on small thumbnails */
.container ul li img { max-height: 120px; object-fit: cover; }

/* ensure focus outlines are visible for accessibility */
:focus { outline: 3px solid rgba(26,115,232,0.12); outline-offset: 2px; }

/* small responsive tweak for very small screens */
@media (max-width: 420px) {
    input[type="text"], textarea { font-size: 0.95rem; }
    .btn { padding: 0.4rem 0.6rem; }
}

/* specific menu search tweaks */
.menu-search { display:flex; align-items:center; gap:0.4rem; margin-left:1rem; }
.menu-search input[type="text"] { min-width:140px; max-width:320px; }
.menu-search-btn { padding:0.35rem 0.6rem; border-radius:6px; border:1px solid var(--blue-300); background:var(--blue-500); color:#fff; z-index:2000; cursor:pointer; }
.menu-search-btn:hover { background:var(--blue-600); }

/* remove special mobile-only button style to keep consistency */
.hamburger-btn.mobile-only { display: none; }

/* Footer styles */
.site-footer {
    background: linear-gradient(180deg, var(--blue-600), var(--blue-700));
    color: #fff;
    padding: 1.15rem 0;
    margin-top: 2rem;
    box-shadow: 0 -2px 8px rgba(0,0,0,0.06);
    font-size: 0.95rem;
}

.site-footer .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.site-footer p { margin: 0; }

/* small screens: stack and center */
@media (max-width: 520px) {
    .site-footer .container { flex-direction: column; text-align: center; }
}

/* link styles inside footer (if links are added later) */
.site-footer a { color: rgba(255,255,255,0.95); text-decoration: none; }
.site-footer a:hover { text-decoration: underline; color: #f0f7ff; }