/* SEO Studio — dark theme, sobre, pro */
:root {
    --bg:        #0b0d10;
    --bg-2:      #12161b;
    --bg-3:      #1a1f26;
    --border:    #252c36;
    --border-2:  #323a47;
    --text:      #e7ecf2;
    --text-dim:  #9aa4b2;
    --text-mute: #6b7585;
    --accent:    #4f9bff;
    --accent-2:  #3a82e0;
    --green:     #22c55e;
    --orange:    #f59e0b;
    --red:       #ef4444;
    --purple:    #a855f7;
    --radius:    8px;
    --shadow:    0 4px 20px rgba(0,0,0,.4);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    background: var(--bg);
    color: var(--text);
    font-size: 14px;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-2); }

h1, h2, h3, h4 { color: var(--text); margin: 0 0 12px 0; font-weight: 600; }
h1 { font-size: 24px; }
h2 { font-size: 18px; }
h3 { font-size: 15px; }

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

.sidebar {
    width: 240px;
    background: var(--bg-2);
    border-right: 1px solid var(--border);
    padding: 20px 0;
    display: flex;
    flex-direction: column;
}
.sidebar .brand {
    padding: 0 20px 20px;
    font-size: 16px;
    font-weight: 700;
    border-bottom: 1px solid var(--border);
    margin-bottom: 16px;
    letter-spacing: .5px;
}
.sidebar .brand span { color: var(--accent); }
.sidebar nav a {
    display: block;
    padding: 9px 20px;
    color: var(--text-dim);
    font-size: 13px;
    border-left: 3px solid transparent;
    transition: all .15s;
}
.sidebar nav a:hover { background: var(--bg-3); color: var(--text); }
.sidebar nav a.active { background: var(--bg-3); color: var(--text); border-left-color: var(--accent); }
.sidebar .nav-section {
    padding: 12px 20px 6px;
    font-size: 10px;
    text-transform: uppercase;
    color: var(--text-mute);
    letter-spacing: 1px;
}
.sidebar .user-box {
    margin-top: auto;
    padding: 16px 20px;
    border-top: 1px solid var(--border);
    font-size: 12px;
    color: var(--text-dim);
}
.sidebar .user-box a { color: var(--red); font-size: 11px; }

.main { flex: 1; padding: 24px 32px; max-width: 100%; overflow-x: auto; }
.main header.page-head {
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.main header.page-head h1 { margin: 0; }

/* === Cards === */
.card {
    background: var(--bg-2);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    margin-bottom: 16px;
}
.card h2 { margin-top: 0; }

.grid { display: grid; gap: 16px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 900px) { .grid-3, .grid-4 { grid-template-columns: 1fr 1fr; } }
@media (max-width: 600px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; } }

/* === Forms === */
.form-group { margin-bottom: 16px; }
.form-group label {
    display: block;
    margin-bottom: 6px;
    font-size: 12px;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: .5px;
}
.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    background: var(--bg-3);
    border: 1px solid var(--border-2);
    color: var(--text);
    padding: 10px 12px;
    border-radius: 6px;
    font-size: 14px;
    font-family: inherit;
    transition: border-color .15s;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
}

/* === Buttons === */
.btn {
    display: inline-block;
    padding: 9px 18px;
    background: var(--accent);
    color: #fff;
    border: none;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: background .15s;
    text-decoration: none;
}
.btn:hover { background: var(--accent-2); color: #fff; }
.btn-secondary { background: var(--bg-3); border: 1px solid var(--border-2); color: var(--text); }
.btn-secondary:hover { background: var(--border); }
.btn-danger { background: var(--red); }
.btn-danger:hover { background: #c53030; }
.btn-sm { padding: 5px 12px; font-size: 12px; }

/* === Tables === */
.table { width: 100%; border-collapse: collapse; }
.table th, .table td {
    padding: 11px 14px;
    text-align: left;
    border-bottom: 1px solid var(--border);
    font-size: 13px;
}
.table th {
    color: var(--text-dim);
    font-weight: 500;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: .5px;
    background: var(--bg-3);
}
.table tbody tr:hover { background: rgba(79, 155, 255, .04); }

/* === Badges === */
.badge {
    display: inline-block;
    padding: 3px 9px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .3px;
}
.badge-green   { background: rgba(34,197,94,.15); color: var(--green); }
.badge-orange  { background: rgba(245,158,11,.15); color: var(--orange); }
.badge-red     { background: rgba(239,68,68,.15); color: var(--red); }
.badge-blue    { background: rgba(79,155,255,.15); color: var(--accent); }
.badge-purple  { background: rgba(168,85,247,.15); color: var(--purple); }
.badge-gray    { background: var(--bg-3); color: var(--text-dim); }

/* === Score gauge === */
.score {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 54px;
    height: 54px;
    border-radius: 50%;
    font-weight: 700;
    font-size: 17px;
    border: 3px solid;
}
.score-good   { color: var(--green);  border-color: var(--green); }
.score-medium { color: var(--orange); border-color: var(--orange); }
.score-bad    { color: var(--red);    border-color: var(--red); }

/* === Flash === */
.flash {
    padding: 12px 16px;
    border-radius: 6px;
    margin-bottom: 16px;
    font-size: 13px;
    border-left: 3px solid;
}
.flash-success { background: rgba(34,197,94,.08);  color: var(--green);  border-color: var(--green); }
.flash-error   { background: rgba(239,68,68,.08);  color: var(--red);    border-color: var(--red); }
.flash-info    { background: rgba(79,155,255,.08); color: var(--accent); border-color: var(--accent); }

/* === Auth page === */
.auth-wrap {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg);
}
.auth-card {
    background: var(--bg-2);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 40px;
    width: 100%;
    max-width: 400px;
    box-shadow: var(--shadow);
}
.auth-card .brand {
    text-align: center;
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 30px;
    letter-spacing: .5px;
}
.auth-card .brand span { color: var(--accent); }
.auth-card .btn { width: 100%; }

/* === Stub pages === */
.stub {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-dim);
}
.stub h2 { color: var(--text); }
.stub p { max-width: 500px; margin: 12px auto; }

/* === Utilities === */
.text-dim { color: var(--text-dim); }
.text-mute { color: var(--text-mute); }
.mt-0 { margin-top: 0; } .mt-1 { margin-top: 8px; } .mt-2 { margin-top: 16px; } .mt-3 { margin-top: 24px; }
.mb-0 { margin-bottom: 0; } .mb-1 { margin-bottom: 8px; } .mb-2 { margin-bottom: 16px; } .mb-3 { margin-bottom: 24px; }
.flex { display: flex; }
.flex-between { display: flex; justify-content: space-between; align-items: center; }
.gap-1 { gap: 8px; } .gap-2 { gap: 16px; }