/* ============================================================
   SEO Admin - Main Stylesheet
   ============================================================ */

*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    --color-bg:         #f0f2f5;
    --color-surface:    #ffffff;
    --color-primary:    #2563eb;
    --color-primary-dk: #1d4ed8;
    --color-danger:     #dc2626;
    --color-success:    #16a34a;
    --color-border:     #d1d5db;
    --color-text:       #111827;
    --color-muted:      #6b7280;
    --color-nav-bg:     #1e293b;
    --color-nav-text:   #cbd5e1;
    --color-nav-hover:  #2563eb;
    --color-top-bar:    #0f172a;
    --top-bar-height:   52px;
    --side-nav-width:   200px;
    --font:             'Segoe UI', system-ui, sans-serif;
    --radius:           6px;
    --shadow:           0 1px 3px rgba(0,0,0,.1);
}

html, body {
    height: 100%;
    font-family: var(--font);
    font-size: 14px;
    color: var(--color-text);
    background: var(--color-bg);
}

/* ============================================================
   TOP BAR
   ============================================================ */
.top-bar {
    position: fixed;
    top: 0; left: 0; right: 0;
    height: var(--top-bar-height);
    background: var(--color-top-bar);
    display: flex;
    align-items: center;
    padding: 0 16px;
    gap: 16px;
    z-index: 100;
    box-shadow: 0 2px 4px rgba(0,0,0,.3);
}

.top-bar-brand {
    color: #fff;
    font-size: 16px;
    font-weight: 700;
    white-space: nowrap;
    min-width: 110px;
}

.top-bar-selectors {
    display: flex;
    align-items: center;
    gap: 12px;
    flex: 1;
}

.selector-group {
    display: flex;
    align-items: center;
    gap: 6px;
}

    .selector-group label {
        /*color: var(--color-nav-text);*/
        color: #636466; 
        font-size: 12px;
        white-space: nowrap;
    }

.selector-group select {
    background: #1e293b;
    color: #fff;
    border: 1px solid #334155;
    border-radius: var(--radius);
    padding: 4px 8px;
    font-size: 13px;
    min-width: 180px;
    cursor: pointer;
}

.selector-group select:focus {
    outline: none;
    border-color: var(--color-primary);
}

.top-bar-user {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-left: auto;
    color: var(--color-nav-text);
    font-size: 13px;
    white-space: nowrap;
}

.btn-logout {
    color: #fff;
    background: #374151;
    border: none;
    border-radius: var(--radius);
    padding: 4px 10px;
    font-size: 12px;
    text-decoration: none;
    cursor: pointer;
}

.btn-logout:hover {
    background: var(--color-danger);
}

/* ============================================================
   MAIN CONTAINER  (below top bar)
   ============================================================ */
.main-container {
    display: flex;
    margin-top: var(--top-bar-height);
    height: calc(100vh - var(--top-bar-height));
    overflow: hidden;
}

/* ============================================================
   SIDE NAV  20%
   ============================================================ */
.side-nav {
    width: var(--side-nav-width);
    min-width: var(--side-nav-width);
    background: var(--color-nav-bg);
    height: 100%;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

.nav-buttons {
    list-style: none;
    padding: 8px 0;
}

.nav-buttons li {
    width: 100%;
}

.nav-btn {
    display: block;
    width: 100%;
    padding: 11px 16px;
    color: var(--color-nav-text);
    text-decoration: none;
    font-size: 13px;
    border-left: 3px solid transparent;
    transition: background .15s, color .15s, border-color .15s;
}

.nav-btn:hover,
.nav-btn.active {
    background: rgba(37, 99, 235, .15);
    color: #fff;
    border-left-color: var(--color-nav-hover);
}

/* ============================================================
   CONTENT AREA  80%
   ============================================================ */
.content-area {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
    background: var(--color-bg);
}

/* ============================================================
   PANEL PLACEHOLDER (home screen)
   ============================================================ */
.panel-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--color-muted);
    gap: 12px;
}

.placeholder-icon {
    font-size: 48px;
    opacity: .3;
}

/* ============================================================
   CONTENT PANELS
   ============================================================ */
.panel {
    background: var(--color-surface);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 20px;
}

.panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--color-border);
}

.panel-title {
    font-size: 16px;
    font-weight: 600;
}

/* Sub-menu bar inside a panel */
.panel-toolbar {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 6px 14px;
    border-radius: var(--radius);
    border: 1px solid transparent;
    font-size: 13px;
    font-family: var(--font);
    cursor: pointer;
    text-decoration: none;
    transition: background .15s, border-color .15s;
    white-space: nowrap;
}

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

.btn-primary:hover {
    background: var(--color-primary-dk);
    border-color: var(--color-primary-dk);
}

.btn-secondary {
    background: #f3f4f6;
    color: var(--color-text);
    border-color: var(--color-border);
}

.btn-secondary:hover {
    background: #e5e7eb;
}

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

.btn-danger:hover {
    background: #b91c1c;
}

.btn-full {
    width: 100%;
    justify-content: center;
    padding: 10px;
    font-size: 14px;
}
.btn-success {
    background: var(--color-success);
    color: #fff;
    border-color: var(--color-success);
}

    .btn-success:hover {
        background: #15803d;
        border-color: #15803d;
    }

/* ============================================================
   FORMS
   ============================================================ */
.form-group {
    display: flex;
    flex-direction: column;
    gap: 4px;
    margin-bottom: 14px;
}

.form-group label {
    font-size: 12px;
    font-weight: 600;
    color: var(--color-muted);
    text-transform: uppercase;
    letter-spacing: .4px;
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="password"],
.form-group input[type="number"],
.form-group select,
.form-group textarea {
    padding: 7px 10px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    font-size: 13px;
    font-family: var(--font);
    color: var(--color-text);
    background: #fff;
    transition: border-color .15s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(37,99,235,.1);
}

.form-row {
    display: flex;
    gap: 16px;
}

.form-row .form-group {
    flex: 1;
}

.field-error {
    color: var(--color-danger);
    font-size: 12px;
}

/* ============================================================
   TABLES
   ============================================================ */
.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

.data-table th {
    background: #f8fafc;
    padding: 9px 12px;
    text-align: left;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .5px;
    color: var(--color-muted);
    border-bottom: 2px solid var(--color-border);
}

.data-table td {
    padding: 9px 12px;
    border-bottom: 1px solid #f1f5f9;
    vertical-align: middle;
}

.data-table tr:hover td {
    background: #f8fafc;
}

.data-table .col-actions {
    width: 100px;
    text-align: right;
}

/* ============================================================
   ALERTS
   ============================================================ */
.alert-error {
    background: #fef2f2;
    color: var(--color-danger);
    border: 1px solid #fecaca;
    border-radius: var(--radius);
    padding: 10px 14px;
    font-size: 13px;
    margin-bottom: 14px;
}

.alert-success {
    background: #f0fdf4;
    color: var(--color-success);
    border: 1px solid #bbf7d0;
    border-radius: var(--radius);
    padding: 10px 14px;
    font-size: 13px;
    margin-bottom: 14px;
}

/* ============================================================
   MODAL
   ============================================================ */
.modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,.5);
    z-index: 200;
    align-items: center;
    justify-content: center;
}

.modal-overlay.open {
    display: flex;
}

.modal-box {
    background: #fff;
    border-radius: var(--radius);
    box-shadow: 0 8px 32px rgba(0,0,0,.2);
    width: 480px;
    max-width: 95vw;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--color-border);
}

.modal-title {
    font-size: 15px;
    font-weight: 600;
}

.modal-close {
    background: none;
    border: none;
    font-size: 20px;
    cursor: pointer;
    color: var(--color-muted);
    line-height: 1;
}

.modal-close:hover {
    color: var(--color-danger);
}

.modal-body {
    padding: 20px;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    padding: 12px 20px;
    border-top: 1px solid var(--color-border);
}

/* ============================================================
   FILTER BAR
   ============================================================ */
.filter-bar {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 14px;
}

.filter-bar input[type="text"] {
    padding: 6px 10px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    font-size: 13px;
    min-width: 220px;
}

.filter-bar input:focus {
    outline: none;
    border-color: var(--color-primary);
}

/* ============================================================
   LOGIN PAGE
   ============================================================ */
.login-page {
    background: var(--color-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
}

.login-box {
    background: var(--color-surface);
    border-radius: var(--radius);
    box-shadow: 0 4px 24px rgba(0,0,0,.12);
    width: 360px;
    padding: 32px;
}

.login-header {
    text-align: center;
    margin-bottom: 28px;
}

.login-header h1 {
    font-size: 22px;
    font-weight: 700;
    color: var(--color-text);
}

.login-header p {
    color: var(--color-muted);
    font-size: 13px;
    margin-top: 4px;
}

/* ============================================================
   UTILITIES
   ============================================================ */
.text-muted  { color: var(--color-muted); }
.text-danger { color: var(--color-danger); }
.text-right  { text-align: right; }
.mt-8        { margin-top: 8px; }
.mt-16       { margin-top: 16px; }
.mb-0        { margin-bottom: 0; }
.hidden      { display: none !important; }