/* ─────────────────────────────────────────────────────────────────────────────
   style.css  —  Community Platform (shared stylesheet)
   Font:     Open Sans (Google Fonts)
   Colours:  defined as CSS variables in :root below (fallback defaults).
             Per-client overrides are injected inline by includes/header.php
             from THEME_COLOR_* constants in each client's config file.
───────────────────────────────────────────────────────────────────────────── */

/* ── Reset & base ─────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --color-primary:      #1B3A5C;
    --color-accent:       #2E5E8E;
    --color-accent-light: #4A7FB5;
    --color-bg:           #F5F7FA;
    --color-card:         #FFFFFF;
    --color-text:         #1A2332;
    --color-text-muted:   #6B7A8E;
    --color-border:       #DDE3EC;
    --color-success:      #1A7F4B;
    --color-success-bg:   #E8F5EE;
    --color-error:        #B91C1C;
    --color-error-bg:     #FEF2F2;
    --color-info-bg:      #EFF6FF;
    --color-info:         #1D4ED8;

    /* type badges */
    --badge-general:  #E8F0F8;
    --badge-idea:     #FFF7E6;
    --badge-question: #F0FDF4;
    --badge-general-text:  #1B3A5C;
    --badge-idea-text:     #92400E;
    --badge-question-text: #065F46;

    --radius:      8px;
    --radius-lg:   12px;
    --shadow:      0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);
    --shadow-md:   0 4px 12px rgba(0,0,0,.10), 0 2px 4px rgba(0,0,0,.06);
    --nav-height:  60px;
    --sidebar-w:   260px;
    --content-max: 860px;
    --font:        'Open Sans', system-ui, sans-serif;
}

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

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

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

img { max-width: 100%; height: auto; }

h1, h2, h3, h4, h5 { line-height: 1.3; font-weight: 700; }

/* ── Top navigation ───────────────────────────────────────────────────────── */
.topnav {
    position: sticky;
    top: 0;
    z-index: 100;
    height: var(--nav-height);
    background: var(--color-primary);
    box-shadow: 0 2px 8px rgba(0,0,0,.20);
    display: flex;
    align-items: center;
}

.topnav__inner {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    align-items: center;
    gap: 2rem;
}

.topnav__brand {
    display: flex;
    align-items: center;
    gap: .5rem;
    color: #fff;
    font-weight: 700;
    font-size: 1.1rem;
    text-decoration: none;
    flex-shrink: 0;
}
.topnav__brand:hover { color: #fff; text-decoration: none; opacity: .9; }
.topnav__brand-icon { font-size: 1rem; opacity: .8; }

.topnav__links {
    display: flex;
    align-items: center;
    gap: .25rem;
    list-style: none;
    flex: 1;
}

.topnav__links a {
    display: block;
    padding: .4rem .85rem;
    color: rgba(255,255,255,.8);
    font-size: .9rem;
    font-weight: 500;
    border-radius: 6px;
    transition: background .15s, color .15s;
    text-decoration: none;
}
.topnav__links a:hover,
.topnav__links a.active {
    background: rgba(255,255,255,.12);
    color: #fff;
}
.topnav__links .nav-admin a {
    color: #FFC947;
}
.topnav__links .nav-admin a:hover { background: rgba(255,201,71,.12); }

.topnav__user {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-left: auto;
    flex-shrink: 0;
}
.topnav__username {
    color: rgba(255,255,255,.9);
    font-size: .875rem;
    font-weight: 500;
}

/* Hamburger for mobile */
.topnav__burger {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: .3rem;
    margin-left: auto;
}
.topnav__burger-bar {
    display: block;
    width: 22px;
    height: 2px;
    background: #fff;
    margin: 5px 0;
    transition: .2s;
    border-radius: 2px;
}
/* Desktop: hide the mobile initial; shown only via mobile media query */
.topnav__burger-initial { display: none; }

/* ── Page layout ──────────────────────────────────────────────────────────── */
.page-wrapper {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
}

/* Two-column: sidebar + content */
.layout {
    display: grid;
    grid-template-columns: var(--sidebar-w) 1fr;
    gap: 2rem;
    align-items: start;
}

.layout__main  { min-width: 0; }
.layout__aside { position: sticky; top: calc(var(--nav-height) + 1.5rem); }

/* Full-width single column */
.layout--full { display: block; }

/* ── Cards ────────────────────────────────────────────────────────────────── */
.card {
    background: var(--color-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    border: 1px solid var(--color-border);
}
.card__header {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}
.card__title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-primary);
}
.card__body { padding: 1.5rem; }

/* ── Sidebar widget ───────────────────────────────────────────────────────── */
.widget {
    background: var(--color-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    border: 1px solid var(--color-border);
    margin-bottom: 1.5rem;
}
.widget__header {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--color-border);
}
.widget__title {
    font-size: .875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .06em;
    color: var(--color-text-muted);
}
.widget__body { padding: 1.25rem; }

/* ── Forms ────────────────────────────────────────────────────────────────── */
.form { display: flex; flex-direction: column; gap: 1.1rem; }

.form__group { display: flex; flex-direction: column; gap: .375rem; }

.form__label {
    font-size: .875rem;
    font-weight: 600;
    color: var(--color-text);
}

.form__input,
.form__textarea,
.form__select {
    width: 100%;
    padding: .6rem .9rem;
    font-family: var(--font);
    font-size: 1rem; /* 16px minimum prevents iOS auto-zoom on focus */
    color: var(--color-text);
    background: var(--color-card);
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius);
    transition: border-color .15s, box-shadow .15s;
    outline: none;
}
.form__input:focus,
.form__textarea:focus,
.form__select:focus {
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(46,94,142,.12);
}
.form__textarea { resize: vertical; min-height: 100px; }

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

.form__row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

/* ── Buttons ──────────────────────────────────────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: .4rem;
    padding: .55rem 1.25rem;
    font-family: var(--font);
    font-size: .9rem;
    font-weight: 600;
    border-radius: var(--radius);
    border: 1.5px solid transparent;
    cursor: pointer;
    transition: background .15s, transform .1s, box-shadow .15s, opacity .15s;
    text-decoration: none;
    white-space: nowrap;
}
.btn:hover { text-decoration: none; }
.btn:active { transform: translateY(1px); }

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

.btn--ghost {
    background: transparent;
    color: var(--color-accent);
    border-color: var(--color-border);
}
.btn--ghost:hover {
    background: var(--color-bg);
    border-color: var(--color-accent);
}

.btn--danger {
    background: var(--color-error-bg);
    color: var(--color-error);
    border-color: #FECACA;
}
.btn--danger:hover {
    background: var(--color-error);
    color: #fff;
    border-color: var(--color-error);
}

.btn--sm {
    font-size: .8rem;
    padding: .35rem .85rem;
}

.btn--full { width: 100%; }

.btn--icon {
    padding: .4rem .6rem;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    color: var(--color-text-muted);
}
.btn--icon:hover { color: var(--color-accent); }

/* ── Alerts ───────────────────────────────────────────────────────────────── */
.alert {
    padding: .85rem 1.1rem;
    border-radius: var(--radius);
    font-size: .9rem;
    margin-bottom: 1rem;
    border-left: 4px solid;
}
.alert p { margin: .2rem 0; }
.alert--success {
    background: var(--color-success-bg);
    color: var(--color-success);
    border-color: var(--color-success);
}
.alert--error {
    background: var(--color-error-bg);
    color: var(--color-error);
    border-color: var(--color-error);
}
.alert--info {
    background: var(--color-info-bg);
    color: var(--color-info);
    border-color: var(--color-info);
}

/* ── Page header ──────────────────────────────────────────────────────────── */
.page-header {
    margin-bottom: 1.75rem;
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
}
.page-header__title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
}
.page-header__sub {
    font-size: .9rem;
    color: var(--color-text-muted);
    margin-top: .25rem;
}

/* ── Section headings ─────────────────────────────────────────────────────── */
.section-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 1rem;
}

/* ── Type badge ───────────────────────────────────────────────────────────── */
.badge {
    display: inline-block;
    padding: .2rem .6rem;
    border-radius: 20px;
    font-size: .72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .05em;
}
.badge--general  { background: var(--badge-general);  color: var(--badge-general-text); }
.badge--idea     { background: var(--badge-idea);     color: var(--badge-idea-text); }
.badge--question { background: var(--badge-question); color: var(--badge-question-text); }
.badge--admin    { background: #FFF7E6; color: #92400E; }
.badge--member   { background: var(--badge-general); color: var(--badge-general-text); }
.badge--pending  { background: #FFF7E6; color: #92400E; }
.badge--active   { background: var(--color-success-bg); color: var(--color-success); }
.badge--inactive { background: #F3F4F6; color: #6B7280; }

/* ── Post / Feed ──────────────────────────────────────────────────────────── */
.post-list { display: flex; flex-direction: column; gap: 1.25rem; }

.post {
    background: var(--color-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    border: 1px solid var(--color-border);
}
.post__header {
    padding: 1.1rem 1.5rem .75rem;
    display: flex;
    align-items: flex-start;
    gap: .75rem;
}
.post__avatar {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: var(--color-accent);
    color: #fff;
    font-weight: 700;
    font-size: .9rem;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.post__meta { flex: 1; min-width: 0; }
.post__author { font-weight: 600; font-size: .9rem; }
.post__time   { font-size: .78rem; color: var(--color-text-muted); }

.post__body {
    padding: 0 1.5rem 1.1rem;
    font-size: .95rem;
    line-height: 1.7;
    white-space: pre-wrap;
    word-break: break-word;
}

.post__footer {
    padding: .75rem 1.5rem;
    border-top: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

/* Comments */
.comment-list {
    border-top: 1px solid var(--color-border);
    padding: 0 1.5rem;
}
.comment {
    display: flex;
    gap: .75rem;
    padding: .9rem 0;
    border-bottom: 1px solid var(--color-border);
}
.comment:last-of-type { border-bottom: none; }
.comment__avatar {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: var(--color-accent-light);
    color: #fff;
    font-weight: 700;
    font-size: .8rem;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.comment__content { flex: 1; min-width: 0; }
.comment__header {
    display: flex;
    align-items: center;
    gap: .6rem;
    margin-bottom: .25rem;
}
.comment__author { font-weight: 600; font-size: .85rem; }
.comment__time   { font-size: .75rem; color: var(--color-text-muted); }
.comment__body   { font-size: .875rem; line-height: 1.6; white-space: pre-wrap; word-break: break-word; }

.comment-form {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--color-border);
    display: flex;
    gap: .75rem;
    align-items: flex-start;
}
.comment-form__avatar {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: var(--color-accent);
    color: #fff;
    font-weight: 700;
    font-size: .8rem;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    margin-top: .2rem;
}
.comment-form__inner {
    flex: 1;
    display: flex;
    gap: .6rem;
    align-items: flex-end;
}
.comment-form__inner .form__input { flex: 1; }

/* Toggle-comments button */
.btn-toggle-comments {
    background: none;
    border: none;
    cursor: pointer;
    font-size: .8rem;
    color: var(--color-text-muted);
    padding: 0;
    font-family: var(--font);
    font-weight: 600;
}
.btn-toggle-comments:hover { color: var(--color-accent); }

/* ── Links board ──────────────────────────────────────────────────────────── */
.link-list { display: flex; flex-direction: column; gap: 1rem; }

.link-card {
    background: var(--color-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow);
    display: flex;
    gap: 0;
}

.link-card__vote {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: .25rem;
    padding: 1rem .9rem;
    border-right: 1px solid var(--color-border);
    min-width: 60px;
    flex-shrink: 0;
    border-radius: var(--radius-lg) 0 0 var(--radius-lg);
}
.link-card__vote-count {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1;
}
.vote-btn {
    background: none;
    border: 1.5px solid var(--color-border);
    border-radius: 6px;
    padding: .3rem .45rem;
    cursor: pointer;
    font-size: .85rem;
    color: var(--color-text-muted);
    transition: background .15s, color .15s, border-color .15s;
    font-family: var(--font);
}
.vote-btn:hover:not(.voted),
.vote-btn.voted {
    background: var(--color-accent);
    color: #fff;
    border-color: var(--color-accent);
}

.link-card__body { padding: 1rem 1.25rem; flex: 1; min-width: 0; }
.link-card__title {
    font-size: .95rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: .3rem;
}
.link-card__title a { color: inherit; }
.link-card__title a:hover { color: var(--color-accent); text-decoration: none; }
.link-card__url {
    font-size: .78rem;
    color: var(--color-text-muted);
    margin-bottom: .4rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.link-card__desc {
    font-size: .875rem;
    color: var(--color-text-muted);
    margin-bottom: .6rem;
    line-height: 1.5;
}
.link-card__meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: .5rem;
    font-size: .78rem;
    color: var(--color-text-muted);
}

/* Tags */
.tag {
    display: inline-block;
    padding: .15rem .55rem;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 20px;
    font-size: .75rem;
    color: var(--color-accent);
    cursor: pointer;
    transition: background .15s;
    font-weight: 600;
}
.tag:hover, .tag.active { background: var(--color-accent); color: #fff; border-color: var(--color-accent); }

.tag-list { display: flex; flex-wrap: wrap; gap: .4rem; }

/* Filter bar */
.filter-bar {
    display: flex;
    align-items: center;
    gap: .75rem;
    flex-wrap: wrap;
    margin-bottom: 1.5rem;
    padding: .9rem 1.25rem;
    background: var(--color-card);
    border-radius: var(--radius);
    border: 1px solid var(--color-border);
}
.filter-bar__label {
    font-size: .8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .06em;
    color: var(--color-text-muted);
    flex-shrink: 0;
}

/* ── Assets ───────────────────────────────────────────────────────────────── */
.asset-list { display: flex; flex-direction: column; gap: 1rem; }

.asset-card {
    background: var(--color-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow);
    padding: 1.25rem 1.5rem;
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}
.asset-card__icon {
    font-size: 1.75rem;
    flex-shrink: 0;
    width: 44px;
    text-align: center;
}
.asset-card__info { flex: 1; min-width: 0; }
.asset-card__title {
    font-size: .95rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: .25rem;
}
.asset-card__desc {
    font-size: .875rem;
    color: var(--color-text-muted);
    margin-bottom: .5rem;
    line-height: 1.5;
}
.asset-card__meta {
    display: flex;
    flex-wrap: wrap;
    gap: .75rem;
    font-size: .78rem;
    color: var(--color-text-muted);
}
.asset-card__actions { flex-shrink: 0; }

/* ── Tips grid ────────────────────────────────────────────────────────────── */
.tip-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.25rem;
}

.tip-card {
    background: var(--color-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow);
    padding: 1.4rem;
    display: flex;
    flex-direction: column;
    gap: .75rem;
    transition: box-shadow .2s, transform .2s;
}
.tip-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}
.tip-card__title {
    font-size: .95rem;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1.4;
}
.tip-card__body {
    font-size: .875rem;
    line-height: 1.6;
    color: var(--color-text);
    flex: 1;
}
.tip-card__footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: .5rem;
    flex-wrap: wrap;
    padding-top: .75rem;
    border-top: 1px solid var(--color-border);
}
.tip-card__meta {
    font-size: .75rem;
    color: var(--color-text-muted);
}
.tip-card__source {
    font-size: .78rem;
    font-weight: 600;
}

/* ── Stats grid (admin) ───────────────────────────────────────────────────── */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}
.stat-card {
    background: var(--color-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow);
    padding: 1.25rem;
    text-align: center;
}
.stat-card__value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1;
    margin-bottom: .35rem;
}
.stat-card__label {
    font-size: .78rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .06em;
    color: var(--color-text-muted);
}

/* ── Tables ───────────────────────────────────────────────────────────────── */
.table-wrap { overflow-x: auto; border-radius: var(--radius); }

table {
    width: 100%;
    border-collapse: collapse;
    font-size: .875rem;
    background: var(--color-card);
}
th {
    padding: .75rem 1rem;
    text-align: left;
    font-size: .75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .06em;
    color: var(--color-text-muted);
    border-bottom: 2px solid var(--color-border);
    background: var(--color-bg);
    white-space: nowrap;
}
td {
    padding: .8rem 1rem;
    border-bottom: 1px solid var(--color-border);
    vertical-align: middle;
}
tr:last-child td { border-bottom: none; }
tr:hover td { background: #F9FAFC; }
td .btn { margin-right: .35rem; }

/* ── Pagination ───────────────────────────────────────────────────────────── */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    padding: 1.5rem 0 .5rem;
}
.pagination__info {
    font-size: .85rem;
    color: var(--color-text-muted);
}

/* ── Empty state ──────────────────────────────────────────────────────────── */
.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--color-text-muted);
}
.empty-state__icon { font-size: 2.5rem; margin-bottom: .75rem; }
.empty-state__text { font-size: .95rem; }

/* ── Auth pages ───────────────────────────────────────────────────────────── */
.auth-page {
    min-height: 100vh;
    background: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
}

.auth-container { width: 100%; max-width: 420px; }

.auth-card {
    background: var(--color-card);
    border-radius: var(--radius-lg);
    box-shadow: 0 20px 60px rgba(0,0,0,.25);
    padding: 2.5rem;
}

.auth-logo {
    display: flex;
    align-items: center;
    gap: .6rem;
    margin-bottom: 2rem;
}
.auth-logo__icon { color: var(--color-accent); font-size: 1.3rem; }
.auth-logo__name { font-size: 1.2rem; font-weight: 700; color: var(--color-primary); }

.auth-card__title    { font-size: 1.4rem; margin-bottom: .35rem; color: var(--color-primary); }
.auth-card__subtitle { font-size: .9rem; color: var(--color-text-muted); margin-bottom: 1.75rem; }
.auth-card__footer   { text-align: center; margin-top: 1.5rem; font-size: .875rem; color: var(--color-text-muted); }

.auth-success {
    text-align: center;
    padding: 1rem 0;
}
.auth-success__icon {
    font-size: 2.5rem;
    color: var(--color-success);
    margin-bottom: 1rem;
}
.auth-success h2  { margin-bottom: .5rem; color: var(--color-primary); }
.auth-success p   { color: var(--color-text-muted); font-size: .9rem; margin-bottom: 1.5rem; }

/* ── Sort tabs ────────────────────────────────────────────────────────────── */
.sort-tabs {
    display: flex;
    gap: .25rem;
    margin-bottom: 1.5rem;
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: .3rem;
    width: fit-content;
}
.sort-tab {
    padding: .4rem 1rem;
    border-radius: 6px;
    font-size: .85rem;
    font-weight: 600;
    color: var(--color-text-muted);
    text-decoration: none;
    transition: background .15s, color .15s;
}
.sort-tab:hover { color: var(--color-accent); text-decoration: none; }
.sort-tab.active {
    background: var(--color-accent);
    color: #fff;
}

/* ── Admin tabs ───────────────────────────────────────────────────────────── */
.admin-tabs {
    display: flex;
    gap: 0;
    border-bottom: 2px solid var(--color-border);
    margin-bottom: 1.75rem;
    overflow-x: auto;
}
.admin-tab {
    padding: .75rem 1.25rem;
    font-size: .9rem;
    font-weight: 600;
    color: var(--color-text-muted);
    text-decoration: none;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    white-space: nowrap;
    transition: color .15s, border-color .15s;
}
.admin-tab:hover { color: var(--color-accent); text-decoration: none; }
.admin-tab.active {
    color: var(--color-primary);
    border-color: var(--color-primary);
}

/* ── Footer ───────────────────────────────────────────────────────────────── */
.site-footer {
    text-align: center;
    padding: 2rem 1rem;
    font-size: .8rem;
    color: var(--color-text-muted);
    border-top: 1px solid var(--color-border);
    margin-top: 3rem;
}

/* ── Upload input ─────────────────────────────────────────────────────────── */
.upload-area {
    border: 2px dashed var(--color-border);
    border-radius: var(--radius);
    padding: 2rem;
    text-align: center;
    cursor: pointer;
    transition: border-color .15s, background .15s;
}
.upload-area:hover, .upload-area.dragover {
    border-color: var(--color-accent);
    background: var(--color-info-bg);
}
.upload-area input[type="file"] { display: none; }
.upload-area__label { color: var(--color-text-muted); font-size: .9rem; }
.upload-area__label strong { color: var(--color-accent); cursor: pointer; }
.upload-area__hint { font-size: .78rem; color: var(--color-text-muted); margin-top: .35rem; }
.upload-area__filename { font-size: .875rem; color: var(--color-text); font-weight: 600; margin-top: .5rem; }

/* ── Bottom navigation (mobile tab bar) ───────────────────────────────────── */
.bottom-nav { display: none; } /* desktop: hidden */

/* ── Responsive ───────────────────────────────────────────────────────────── */
@media (max-width: 900px) {
    .layout {
        grid-template-columns: 1fr;
    }
    .layout__aside {
        position: static;
        order: -1;
    }
}

@media (max-width: 640px) {
    /* ── Top nav on mobile ──────────────────────────────────────────────────── */
    /* Main nav links are replaced by the bottom tab bar */
    .topnav__links { display: none !important; }

    /* User section: hidden by default, appears as compact right-side dropdown */
    .topnav__user { display: none; }
    .topnav__user.open {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: var(--nav-height);
        right: 0;
        width: 220px;
        background: var(--color-card);
        border: 1px solid var(--color-border);
        border-radius: 0 0 var(--radius-lg) var(--radius-lg);
        padding: 1rem 1.25rem;
        gap: .75rem;
        z-index: 200;
        box-shadow: var(--shadow-md);
    }
    .topnav__user.open .topnav__username {
        color: var(--color-text);
        font-size: .9rem;
        font-weight: 600;
        border-bottom: 1px solid var(--color-border);
        padding-bottom: .6rem;
        width: 100%;
    }
    .topnav__user.open .btn {
        width: 100%;
        justify-content: center;
        color: var(--color-text);
        border-color: var(--color-border);
    }

    /* Burger now acts as user-menu toggle */
    .topnav__burger { display: flex; align-items: center; justify-content: center; }
    /* Hide the bar spans; show the user-initial span */
    .topnav__burger-bar { display: none; }
    .topnav__burger-initial {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 34px;
        height: 34px;
        border-radius: 50%;
        background: rgba(255,255,255,.2);
        border: 1.5px solid rgba(255,255,255,.35);
        color: #fff;
        font-size: .9rem;
        font-weight: 700;
        line-height: 1;
        cursor: pointer;
        transition: background .15s;
    }
    .topnav__burger-initial:hover { background: rgba(255,255,255,.3); }

    /* ── Bottom navigation tab bar ──────────────────────────────────────────── */
    .bottom-nav {
        display: flex;
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        background: var(--color-card);
        border-top: 1.5px solid var(--color-border);
        box-shadow: 0 -2px 16px rgba(0,0,0,.08);
        z-index: 200;
        /* iOS safe-area: pushes content above home bar */
        padding-bottom: env(safe-area-inset-bottom, 0px);
    }

    .bottom-nav__item {
        flex: 1;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        padding: .55rem .25rem .5rem;
        color: var(--color-text-muted);
        font-size: .65rem;
        font-weight: 600;
        text-decoration: none;
        gap: .2rem;
        min-height: 54px;
        border-top: 2.5px solid transparent;
        transition: color .15s, border-color .15s;
        position: relative;
    }
    .bottom-nav__item:hover { text-decoration: none; color: var(--color-accent); }
    .bottom-nav__item.active {
        color: var(--color-accent);
        border-top-color: var(--color-accent);
    }

    .bottom-nav__icon {
        width: 22px;
        height: 22px;
        display: flex;
        align-items: center;
        justify-content: center;
    }
    .bottom-nav__icon svg {
        width: 22px;
        height: 22px;
        stroke: currentColor;
        fill: none;
        stroke-linecap: round;
        stroke-linejoin: round;
        stroke-width: 2;
    }

    /* ── Page layout on mobile ──────────────────────────────────────────────── */
    .page-wrapper {
        padding: 1rem .875rem calc(4.5rem + env(safe-area-inset-bottom, 0px));
    }

    /* ── Cards & posts ──────────────────────────────────────────────────────── */
    .card__header  { padding: .9rem 1rem; }
    .card__body    { padding: 1rem; }
    .post__header  { padding: .9rem 1rem .6rem; }
    .post__body    { padding: 0 1rem .9rem; font-size: .95rem; }
    .post__footer  { padding: .6rem 1rem; gap: .75rem; }
    .comment-list  { padding: 0 1rem; }
    .comment-form  { padding: .75rem 1rem; }
    .asset-card    { padding: 1rem; flex-direction: column; }

    /* ── Comment form: stack vertically on mobile ───────────────────────────── */
    .comment-form {
        flex-direction: column;
        gap: .6rem;
        align-items: stretch;
    }
    .comment-form__avatar { display: none; }
    .comment-form__inner {
        flex-direction: column;
        align-items: stretch;
        gap: .5rem;
    }
    .comment-form__inner .btn {
        width: 100%;
    }

    /* ── Tap targets: minimum 44px height ───────────────────────────────────── */
    .btn {
        min-height: 44px;
        padding: .65rem 1.25rem;
    }
    .btn--sm {
        min-height: 40px;
        font-size: .85rem;
        padding: .5rem 1rem;
    }
    .vote-btn {
        min-width: 44px;
        min-height: 40px;
        padding: .4rem .7rem;
    }

    /* ── Grids ──────────────────────────────────────────────────────────────── */
    .form__row   { grid-template-columns: 1fr; }
    .tip-grid    { grid-template-columns: 1fr; }
    .stats-grid  { grid-template-columns: repeat(2, 1fr); }
    .page-header { flex-direction: column; align-items: flex-start; }

    /* ── Sort tabs: full width ──────────────────────────────────────────────── */
    .sort-tabs { width: 100%; }
    .sort-tab  { flex: 1; text-align: center; }

    /* ── Admin ──────────────────────────────────────────────────────────────── */
    .admin-tabs { gap: 0; }

    /* ── Link cards ─────────────────────────────────────────────────────────── */
    .link-card { flex-direction: column; }
    .link-card__vote {
        flex-direction: row;
        border-right: none;
        border-bottom: 1px solid var(--color-border);
        border-radius: var(--radius-lg) var(--radius-lg) 0 0;
        padding: .6rem 1rem;
        justify-content: flex-start;
        gap: .75rem;
    }

    /* ── Auth pages ─────────────────────────────────────────────────────────── */
    .auth-card { padding: 2rem 1.25rem; }

    /* ── Upload area: hide drag-drop hint on mobile ─────────────────────────── */
    .upload-area { padding: 1.5rem 1rem; }
    .upload-area__label strong { display: block; margin-bottom: .25rem; font-size: 1rem; }
}