/* ============================================================
   style.css — SecMonitor — Painel de Monitorização de Segurança
   ============================================================ */

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

:root {
    --clr-bg:           #f0f2f5;
    --clr-surface:      #ffffff;
    --clr-border:       #e2e6ea;
    --clr-text:         #212529;
    --clr-text-muted:   #6c757d;

    --clr-primary:      #2563eb;
    --clr-primary-dark: #1d4ed8;
    --clr-primary-light:#eff6ff;

    --clr-success:      #16a34a;
    --clr-success-bg:   #dcfce7;
    --clr-warning:      #d97706;
    --clr-warning-bg:   #fef3c7;
    --clr-error:        #dc2626;
    --clr-error-bg:     #fee2e2;
    --clr-info:         #0891b2;
    --clr-info-bg:      #e0f2fe;

    --clr-nav-bg:       #1e293b;
    --clr-nav-text:     #cbd5e1;
    --clr-nav-active:   #ffffff;
    --clr-nav-hover:    #334155;

    --radius-sm:  4px;
    --radius:     8px;
    --radius-lg:  12px;
    --shadow-sm:  0 1px 3px rgba(0,0,0,.08);
    --shadow:     0 2px 8px rgba(0,0,0,.10);
    --shadow-lg:  0 4px 20px rgba(0,0,0,.12);

    --font-body:  system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    --font-mono:  "SF Mono", "Fira Code", Consolas, monospace;

    --nav-h: 60px;
    --sidebar-w: 0px;
}

html { font-size: 16px; }
body {
    font-family: var(--font-body);
    background: var(--clr-bg);
    color: var(--clr-text);
    line-height: 1.5;
    min-height: 100vh;
}

/* ---- Navbar ---- */
.navbar {
    position: sticky;
    top: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0 1.5rem;
    height: var(--nav-h);
    background: var(--clr-nav-bg);
    box-shadow: 0 2px 8px rgba(0,0,0,.25);
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: .5rem;
    color: #fff;
    font-size: 1.1rem;
    font-weight: 700;
    text-decoration: none;
    white-space: nowrap;
    flex-shrink: 0;
}
.navbar-brand svg { color: #60a5fa; }

.navbar-nav {
    display: flex;
    list-style: none;
    gap: .25rem;
    flex: 1;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: .4rem;
    padding: .45rem .85rem;
    border-radius: var(--radius-sm);
    color: var(--clr-nav-text);
    text-decoration: none;
    font-size: .875rem;
    font-weight: 500;
    transition: background .15s, color .15s;
    white-space: nowrap;
}
.nav-link:hover { background: var(--clr-nav-hover); color: #fff; }
.nav-link.active { background: var(--clr-primary); color: #fff; }

.navbar-user {
    display: flex;
    align-items: center;
    gap: .75rem;
    margin-left: auto;
    flex-shrink: 0;
}
.user-info {
    display: flex;
    align-items: center;
    gap: .3rem;
    color: var(--clr-nav-text);
    font-size: .8rem;
}

.navbar-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
    margin-left: auto;
}
.navbar-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: #fff;
    border-radius: 2px;
    transition: .2s;
}

/* ---- Main content ---- */
.main-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1.5rem;
}

.page-header {
    margin-bottom: 1.5rem;
}
.page-title {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--clr-text);
}
.page-subtitle {
    font-size: .85rem;
    color: var(--clr-text-muted);
    margin-top: .25rem;
}

/* ---- Stat cards ---- */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.stat-card {
    background: var(--clr-surface);
    border-radius: var(--radius);
    padding: 1.1rem 1.25rem;
    box-shadow: var(--shadow-sm);
    border-left: 4px solid var(--clr-primary);
    transition: box-shadow .2s;
}
.stat-card:hover { box-shadow: var(--shadow); }
.stat-card.card-success { border-color: var(--clr-success); }
.stat-card.card-error   { border-color: var(--clr-error); }
.stat-card.card-warning { border-color: var(--clr-warning); }
.stat-card.card-info    { border-color: var(--clr-info); }

.stat-label {
    font-size: .75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .05em;
    color: var(--clr-text-muted);
    margin-bottom: .35rem;
}
.stat-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--clr-text);
    line-height: 1.1;
}
.stat-sub {
    font-size: .78rem;
    color: var(--clr-text-muted);
    margin-top: .25rem;
}

/* ---- Section ---- */
.section {
    background: var(--clr-surface);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    padding: 1.25rem 1.5rem;
    margin-bottom: 1.5rem;
}
.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
    flex-wrap: wrap;
    gap: .5rem;
}
.section-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--clr-text);
}

/* ---- Charts ---- */
.charts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
    gap: 1.25rem;
    margin-bottom: 1.5rem;
}
.chart-box {
    background: var(--clr-surface);
    border-radius: var(--radius);
    padding: 1.25rem;
    box-shadow: var(--shadow-sm);
}
.chart-box h3 {
    font-size: .9rem;
    font-weight: 600;
    color: var(--clr-text-muted);
    margin-bottom: .85rem;
    text-transform: uppercase;
    letter-spacing: .04em;
}
.chart-wrap {
    position: relative;
    height: 220px;
}

/* ---- Tables ---- */
.table-wrap {
    overflow-x: auto;
    border-radius: var(--radius);
}
table {
    width: 100%;
    border-collapse: collapse;
    font-size: .85rem;
}
thead th {
    background: #f8fafc;
    color: var(--clr-text-muted);
    font-weight: 600;
    font-size: .75rem;
    text-transform: uppercase;
    letter-spacing: .05em;
    padding: .65rem .85rem;
    text-align: left;
    border-bottom: 2px solid var(--clr-border);
    white-space: nowrap;
}
tbody td {
    padding: .55rem .85rem;
    border-bottom: 1px solid var(--clr-border);
    vertical-align: middle;
    color: var(--clr-text);
    word-break: break-word;
}
tbody tr:last-child td { border-bottom: none; }
tbody tr:hover { background: #f8fafc; }

.mono { font-family: var(--font-mono); font-size: .8rem; }
.raw-cell { max-width: 340px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.raw-cell:hover { white-space: normal; }

/* ---- Badges ---- */
.badge {
    display: inline-block;
    padding: .2rem .55rem;
    border-radius: 9999px;
    font-size: .72rem;
    font-weight: 600;
    white-space: nowrap;
}
.badge-success { background: var(--clr-success-bg); color: var(--clr-success); }
.badge-error   { background: var(--clr-error-bg);   color: var(--clr-error); }
.badge-warning { background: var(--clr-warning-bg); color: var(--clr-warning); }
.badge-info    { background: var(--clr-info-bg);    color: var(--clr-info); }
.badge-neutral { background: #f1f5f9; color: #475569; }

/* ---- Buttons ---- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: .35rem;
    padding: .5rem 1rem;
    border-radius: var(--radius-sm);
    font-size: .85rem;
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
    border: 1px solid transparent;
    transition: background .15s, border-color .15s, color .15s;
    white-space: nowrap;
}
.btn-primary  { background: var(--clr-primary); color: #fff; }
.btn-primary:hover { background: var(--clr-primary-dark); }
.btn-outline  { background: transparent; border-color: var(--clr-border); color: var(--clr-text); }
.btn-outline:hover { background: var(--clr-bg); }
.btn-danger   { background: var(--clr-error); color: #fff; }
.btn-sm       { padding: .3rem .65rem; font-size: .78rem; }
.btn-group    { display: flex; gap: .5rem; flex-wrap: wrap; }

/* ---- Filters ---- */
.filters-panel {
    background: var(--clr-surface);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    padding: 1rem 1.25rem;
    margin-bottom: 1.25rem;
}
.filters-form {
    display: flex;
    flex-wrap: wrap;
    gap: .75rem;
    align-items: flex-end;
}
.filter-group {
    display: flex;
    flex-direction: column;
    gap: .3rem;
}
.filter-group label {
    font-size: .75rem;
    font-weight: 600;
    color: var(--clr-text-muted);
    text-transform: uppercase;
    letter-spacing: .04em;
}
.filter-group input,
.filter-group select {
    padding: .4rem .65rem;
    border: 1px solid var(--clr-border);
    border-radius: var(--radius-sm);
    font-size: .85rem;
    background: var(--clr-bg);
    color: var(--clr-text);
    min-width: 130px;
    outline: none;
    transition: border-color .15s;
}
.filter-group input:focus,
.filter-group select:focus { border-color: var(--clr-primary); background: #fff; }

/* ---- Alert / suspicious ---- */
.alert {
    padding: .85rem 1.1rem;
    border-radius: var(--radius);
    margin-bottom: 1.25rem;
    border-left: 4px solid;
    font-size: .875rem;
}
.alert-danger  { background: var(--clr-error-bg);   border-color: var(--clr-error);   color: #7f1d1d; }
.alert-warning { background: var(--clr-warning-bg); border-color: var(--clr-warning); color: #78350f; }
.alert-info    { background: var(--clr-info-bg);    border-color: var(--clr-info);    color: #164e63; }
.alert-success { background: var(--clr-success-bg); border-color: var(--clr-success); color: #14532d; }

.alert strong { font-weight: 700; }

/* ---- Security indicators ---- */
.security-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}
.security-card {
    background: var(--clr-surface);
    border-radius: var(--radius);
    padding: 1rem 1.25rem;
    box-shadow: var(--shadow-sm);
    border-top: 3px solid var(--clr-warning);
}
.security-card.critical { border-color: var(--clr-error); }
.security-card.safe     { border-color: var(--clr-success); }

.security-card h4 {
    font-size: .8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .05em;
    color: var(--clr-text-muted);
    margin-bottom: .5rem;
}
.security-value {
    font-size: 2rem;
    font-weight: 800;
    line-height: 1;
    margin-bottom: .25rem;
}
.security-card.critical .security-value { color: var(--clr-error); }
.security-card.safe     .security-value { color: var(--clr-success); }
.security-card .security-value          { color: var(--clr-warning); }

.ip-list { list-style: none; margin-top: .5rem; }
.ip-list li {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: .25rem 0;
    border-bottom: 1px solid var(--clr-border);
    font-size: .82rem;
}
.ip-list li:last-child { border-bottom: none; }

/* ---- Login page ---- */
.login-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--clr-bg);
}
.login-box {
    background: var(--clr-surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: 2.5rem 2rem;
    width: 100%;
    max-width: 380px;
}
.login-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: .6rem;
    margin-bottom: 1.5rem;
    color: var(--clr-primary);
    font-size: 1.3rem;
    font-weight: 700;
}
.form-group {
    margin-bottom: 1rem;
}
.form-group label {
    display: block;
    font-size: .85rem;
    font-weight: 600;
    margin-bottom: .35rem;
    color: var(--clr-text-muted);
}
.form-group input {
    width: 100%;
    padding: .6rem .85rem;
    border: 1px solid var(--clr-border);
    border-radius: var(--radius-sm);
    font-size: .95rem;
    background: var(--clr-bg);
    color: var(--clr-text);
    outline: none;
    transition: border-color .15s;
}
.form-group input:focus { border-color: var(--clr-primary); background: #fff; }
.btn-block { width: 100%; justify-content: center; padding: .65rem; font-size: 1rem; margin-top: .5rem; }

/* ---- Pagination / empty ---- */
.empty-state {
    text-align: center;
    padding: 2.5rem;
    color: var(--clr-text-muted);
    font-size: .9rem;
}
.empty-state svg { margin-bottom: .75rem; opacity: .4; }

.pagination {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    gap: .5rem;
    margin-top: .75rem;
    font-size: .82rem;
    color: var(--clr-text-muted);
}

/* ---- Top list tables ---- */
.top-list { width: 100%; }
.top-list tr td:first-child { font-family: var(--font-mono); font-size: .8rem; }
.top-list tr td:last-child  { text-align: right; font-weight: 600; color: var(--clr-primary); }

/* ---- Dashboard two-col ---- */
.dash-cols {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1.25rem;
    margin-bottom: 1.5rem;
}

/* ---- Export bar ---- */
.export-bar {
    display: flex;
    align-items: center;
    gap: .5rem;
    flex-wrap: wrap;
    margin-bottom: 1rem;
}
.export-bar span {
    font-size: .8rem;
    font-weight: 600;
    color: var(--clr-text-muted);
    text-transform: uppercase;
    letter-spacing: .04em;
}

/* ---- Table pagination ---- */
#paginationInfo { font-size: .8rem; color: var(--clr-text-muted); }

/* ---- Footer ---- */
.site-footer {
    background: var(--clr-nav-bg);
    color: #64748b;
    font-size: .78rem;
    padding: .85rem 1.5rem;
    margin-top: 2rem;
}
.footer-inner { display: flex; align-items: center; gap: .5rem; max-width: 1400px; margin: 0 auto; }
.footer-sep { opacity: .4; }

/* ---- Responsive ---- */
@media (max-width: 768px) {
    .navbar { flex-wrap: wrap; padding: 0 1rem; height: auto; min-height: var(--nav-h); }
    .navbar-brand { padding: .75rem 0; }
    .navbar-toggle { display: flex; }
    .navbar-nav {
        display: none;
        flex-direction: column;
        width: 100%;
        padding-bottom: .5rem;
    }
    .navbar-nav.open { display: flex; }
    .navbar-user { width: 100%; padding-bottom: .75rem; }

    .charts-grid { grid-template-columns: 1fr; }
    .dash-cols   { grid-template-columns: 1fr; }
    .security-grid { grid-template-columns: 1fr; }
    .cards-grid { grid-template-columns: repeat(2, 1fr); }

    .filters-form { gap: .5rem; }
    .filter-group input, .filter-group select { min-width: 100px; }

    .main-content { padding: 1rem; }
}

@media (max-width: 480px) {
    .cards-grid { grid-template-columns: 1fr; }
    .stat-value { font-size: 1.4rem; }
    .login-box  { padding: 1.75rem 1.25rem; }
}