/* ============================================================
   Social Bot CRM — Theme Layer
   Drives light & dark mode via CSS custom properties.
   Loaded on top of Bootstrap 5.
   ============================================================ */

:root {
    /* Brand */
    --sb-brand: #4f46e5;
    --sb-brand-rgb: 79, 70, 229;
    --sb-brand-hover: #4338ca;
    --sb-brand-soft: rgba(79, 70, 229, 0.12);
    --sb-accent: #1877f2;       /* Facebook blue for page accents */
    --sb-success: #16a34a;
    --sb-warning: #f59e0b;
    --sb-danger: #dc2626;
    --sb-info: #0ea5e9;

    /* Gradients */
    --sb-grad-brand: linear-gradient(135deg, #6366f1 0%, #4f46e5 100%);
    --sb-grad-blue: linear-gradient(135deg, #38bdf8 0%, #1877f2 100%);
    --sb-grad-green: linear-gradient(135deg, #4ade80 0%, #16a34a 100%);
    --sb-grad-amber: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
    --sb-grad-pink: linear-gradient(135deg, #f472b6 0%, #db2777 100%);

    /* Surfaces — light mode defaults */
    --sb-bg: #eef1f7;
    --sb-surface: #ffffff;
    --sb-surface-2: #f7f8fc;
    --sb-sidebar-bg: #ffffff;
    --sb-sidebar-active: var(--sb-brand-soft);
    --sb-border: #e6e8ef;
    --sb-text: #0f1729;
    --sb-text-muted: #6b7280;
    --sb-text-soft: #9aa3b2;
    --sb-shadow: 0 1px 3px rgba(16, 23, 41, 0.06), 0 1px 2px rgba(16, 23, 41, 0.04);
    --sb-shadow-lg: 0 12px 32px rgba(16, 23, 41, 0.10);
    --sb-radius: 14px;
    --sb-radius-sm: 10px;
    --sb-sidebar-w: 264px;
    --sb-navbar-h: 64px;
}

/* Dark mode overrides */
[data-theme="dark"] {
    --sb-bg: #0b1120;
    --sb-surface: #131a2b;
    --sb-surface-2: #1a2236;
    --sb-sidebar-bg: #0f1626;
    --sb-sidebar-active: rgba(99, 102, 241, 0.18);
    --sb-border: #232c42;
    --sb-text: #e6eaf2;
    --sb-text-muted: #94a0b8;
    --sb-text-soft: #6b7794;
    --sb-shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
    --sb-shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.45);
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
    background: var(--sb-bg);
    color: var(--sb-text);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    transition: background-color 0.25s ease, color 0.25s ease;
}

a { color: var(--sb-brand); text-decoration: none; }
a:hover { color: var(--sb-brand-hover); }

/* ---------- Scrollbars ---------- */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--sb-text-soft); border-radius: 8px; opacity: 0.5; }
::-webkit-scrollbar-thumb:hover { background: var(--sb-text-muted); }

/* ============================================================
   App Layout
   ============================================================ */
.sb-app { display: flex; min-height: 100vh; }

/* ---------- Sidebar ---------- */
.sb-sidebar {
    width: var(--sb-sidebar-w);
    background: var(--sb-sidebar-bg);
    border-right: 1px solid var(--sb-border);
    position: fixed;
    inset: 0 auto 0 0;
    display: flex;
    flex-direction: column;
    z-index: 1040;
    transition: transform 0.28s cubic-bezier(0.4, 0, 0.2, 1);
}
.sb-sidebar__brand {
    height: var(--sb-navbar-h);
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 0 20px;
    border-bottom: 1px solid var(--sb-border);
    flex-shrink: 0;
}
.sb-sidebar__logo {
    width: 38px; height: 38px;
    border-radius: 11px;
    background: var(--sb-grad-brand);
    display: grid; place-items: center;
    color: #fff; font-size: 18px;
    box-shadow: 0 4px 12px rgba(var(--sb-brand-rgb), 0.35);
    flex-shrink: 0;
}
.sb-sidebar__title { font-weight: 700; font-size: 1.05rem; line-height: 1.1; letter-spacing: -0.01em; }
.sb-sidebar__subtitle { font-size: 0.72rem; color: var(--sb-text-muted); }

.sb-nav { flex: 1; overflow-y: auto; padding: 14px 12px; }
.sb-nav__section { font-size: 0.68rem; text-transform: uppercase; letter-spacing: 0.08em;
    color: var(--sb-text-soft); font-weight: 600; margin: 18px 12px 8px; }
.sb-nav__section:first-child { margin-top: 4px; }

.sb-nav__link {
    display: flex; align-items: center; gap: 12px;
    padding: 10px 12px; margin-bottom: 2px;
    border-radius: var(--sb-radius-sm);
    color: var(--sb-text-muted);
    font-weight: 500; font-size: 0.9rem;
    transition: background 0.15s ease, color 0.15s ease;
    position: relative;
}
.sb-nav__link:hover { background: var(--sb-surface-2); color: var(--sb-text); }
.sb-nav__link.active { background: var(--sb-sidebar-active); color: var(--sb-brand); font-weight: 600; }
.sb-nav__link.active::before {
    content: ''; position: absolute; left: -12px; top: 50%; transform: translateY(-50%);
    width: 3px; height: 22px; border-radius: 0 3px 3px 0; background: var(--sb-brand);
}
.sb-nav__link i { width: 20px; text-align: center; font-size: 1rem; }
.sb-nav__badge { margin-left: auto; font-size: 0.7rem; font-weight: 700;
    background: var(--sb-danger); color: #fff; border-radius: 999px; padding: 1px 7px; }

/* ---------- Main column ---------- */
.sb-main {
    margin-left: var(--sb-sidebar-w);
    flex: 1; min-width: 0;
    display: flex; flex-direction: column;
    transition: margin-left 0.28s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---------- Topbar ---------- */
.sb-topbar {
    height: var(--sb-navbar-h);
    background: var(--sb-surface);
    border-bottom: 1px solid var(--sb-border);
    display: flex; align-items: center; gap: 16px;
    padding: 0 24px;
    position: sticky; top: 0; z-index: 1030;
}
.sb-topbar__search {
    flex: 1; max-width: 420px;
    display: flex; align-items: center; gap: 10px;
    background: var(--sb-surface-2);
    border: 1px solid var(--sb-border);
    border-radius: 999px; padding: 8px 16px;
    color: var(--sb-text-muted);
}
.sb-topbar__search input {
    border: 0; background: transparent; outline: none;
    color: var(--sb-text); width: 100%; font-size: 0.9rem;
}
.sb-iconbtn {
    width: 40px; height: 40px; border-radius: 11px;
    border: 1px solid var(--sb-border); background: var(--sb-surface);
    color: var(--sb-text-muted);
    display: grid; place-items: center; cursor: pointer;
    transition: all 0.15s ease; position: relative;
}
.sb-iconbtn:hover { background: var(--sb-surface-2); color: var(--sb-text); }
.sb-iconbtn__dot { position: absolute; top: 8px; right: 9px; width: 8px; height: 8px;
    border-radius: 50%; background: var(--sb-danger); border: 2px solid var(--sb-surface); }

.sb-avatar { border-radius: 50%; object-fit: cover; background: var(--sb-surface-2); }
.sb-avatar--sm { width: 32px; height: 32px; }
.sb-avatar--md { width: 40px; height: 40px; }
.sb-avatar--lg { width: 56px; height: 56px; }

/* ---------- Content ---------- */
.sb-content { padding: 26px 24px 40px; flex: 1; }
.sb-page-head { margin-bottom: 22px; }
.sb-page-title { font-size: 1.5rem; font-weight: 700; letter-spacing: -0.02em; margin: 0; }
.sb-page-sub { color: var(--sb-text-muted); margin: 4px 0 0; font-size: 0.92rem; }

/* ---------- Cards ---------- */
.sb-card {
    background: var(--sb-surface);
    border: 1px solid var(--sb-border);
    border-radius: var(--sb-radius);
    box-shadow: var(--sb-shadow);
}
.sb-card__body { padding: 20px; }
.sb-card__head { padding: 16px 20px; border-bottom: 1px solid var(--sb-border);
    display: flex; align-items: center; justify-content: space-between; }
.sb-card__title { font-weight: 650; font-size: 1rem; margin: 0; }

/* ---------- Stat cards ---------- */
.sb-stat {
    background: var(--sb-surface);
    border: 1px solid var(--sb-border);
    border-radius: var(--sb-radius);
    padding: 20px;
    box-shadow: var(--sb-shadow);
    position: relative; overflow: hidden;
    transition: transform 0.18s ease, box-shadow 0.18s ease;
}
.sb-stat:hover { transform: translateY(-3px); box-shadow: var(--sb-shadow-lg); }
.sb-stat__icon {
    width: 50px; height: 50px; border-radius: 13px;
    display: grid; place-items: center; color: #fff; font-size: 1.25rem;
    margin-bottom: 14px;
}
.sb-stat__value { font-size: 1.9rem; font-weight: 750; letter-spacing: -0.03em; line-height: 1; }
.sb-stat__label { color: var(--sb-text-muted); font-size: 0.85rem; margin-top: 6px; }
.sb-stat__trend { font-size: 0.78rem; font-weight: 600; margin-top: 10px; display: inline-flex;
    align-items: center; gap: 4px; }
.sb-stat__trend.up { color: var(--sb-success); }
.sb-stat__trend.down { color: var(--sb-danger); }

.bg-grad-brand { background: var(--sb-grad-brand); }
.bg-grad-blue { background: var(--sb-grad-blue); }
.bg-grad-green { background: var(--sb-grad-green); }
.bg-grad-amber { background: var(--sb-grad-amber); }
.bg-grad-pink { background: var(--sb-grad-pink); }

/* ---------- Buttons ---------- */
.btn-brand { background: var(--sb-brand); border-color: var(--sb-brand); color: #fff; font-weight: 600; }
.btn-brand:hover { background: var(--sb-brand-hover); border-color: var(--sb-brand-hover); color: #fff; }
.btn-soft { background: var(--sb-brand-soft); border-color: transparent; color: var(--sb-brand); font-weight: 600; }
.btn-soft:hover { background: var(--sb-brand); color: #fff; }

/* ---------- Badges ---------- */
.sb-badge { font-size: 0.72rem; font-weight: 600; padding: 3px 9px; border-radius: 999px;
    display: inline-flex; align-items: center; gap: 5px; }

/* ---------- Tables (DataTables-friendly) ---------- */
.sb-table { width: 100%; color: var(--sb-text); }
.sb-table thead th { font-size: 0.74rem; text-transform: uppercase; letter-spacing: 0.05em;
    color: var(--sb-text-muted); font-weight: 600; border-bottom: 1px solid var(--sb-border);
    padding: 12px 14px; }
.sb-table tbody td { padding: 14px; border-bottom: 1px solid var(--sb-border); vertical-align: middle; }
.sb-table tbody tr:hover { background: var(--sb-surface-2); }
.sb-table tbody tr:last-child td { border-bottom: 0; }

/* ---------- Dropdown menu theming ---------- */
.dropdown-menu {
    background: var(--sb-surface); border: 1px solid var(--sb-border);
    box-shadow: var(--sb-shadow-lg); border-radius: var(--sb-radius-sm); padding: 6px;
}
.dropdown-item { color: var(--sb-text); border-radius: 8px; padding: 8px 12px; font-size: 0.88rem; }
.dropdown-item:hover, .dropdown-item:focus { background: var(--sb-surface-2); color: var(--sb-text); }
.dropdown-divider { border-color: var(--sb-border); }
.dropdown-header { color: var(--sb-text-soft); }

/* ---------- Forms ---------- */
.form-control, .form-select {
    background: var(--sb-surface); border: 1px solid var(--sb-border); color: var(--sb-text);
    border-radius: var(--sb-radius-sm); padding: 10px 14px;
}
.form-control:focus, .form-select:focus {
    background: var(--sb-surface); color: var(--sb-text);
    border-color: var(--sb-brand); box-shadow: 0 0 0 3px var(--sb-brand-soft);
}
.form-control::placeholder { color: var(--sb-text-soft); }
.form-label { font-weight: 600; font-size: 0.85rem; color: var(--sb-text); margin-bottom: 6px; }

/* ---------- Loading / skeleton ---------- */
.sb-skeleton {
    background: linear-gradient(90deg, var(--sb-surface-2) 25%, var(--sb-border) 37%, var(--sb-surface-2) 63%);
    background-size: 400% 100%;
    animation: sb-shimmer 1.4s ease infinite;
    border-radius: 8px;
}
@keyframes sb-shimmer { 0% { background-position: 100% 0; } 100% { background-position: -100% 0; } }

.sb-spinner {
    width: 38px; height: 38px; border-radius: 50%;
    border: 3px solid var(--sb-border); border-top-color: var(--sb-brand);
    animation: sb-spin 0.7s linear infinite;
}
@keyframes sb-spin { to { transform: rotate(360deg); } }

@keyframes sb-fade-up { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
.sb-fade-up { animation: sb-fade-up 0.4s ease both; }

/* ---------- Mobile overlay ---------- */
.sb-overlay {
    position: fixed; inset: 0; background: rgba(0,0,0,0.45);
    z-index: 1035; opacity: 0; visibility: hidden; transition: opacity 0.25s ease;
}
.sb-overlay.show { opacity: 1; visibility: visible; }

/* ---------- Responsive ---------- */
@media (max-width: 991.98px) {
    .sb-sidebar { transform: translateX(-100%); }
    .sb-sidebar.open { transform: translateX(0); }
    .sb-main { margin-left: 0; }
    .sb-topbar__search { max-width: none; }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}