:root {
    --bg-color: #0f0f0f;
    --card-bg: #1a1a1a;
    --primary-color: #ffba00; 
    --text-color: #ffffff;
    --text-muted: #a0a0a0;
    --accent-glow: rgba(255, 186, 0, 0.2);
    --border-color: #333;
    --danger-color: #ff4d4d;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Inter', sans-serif;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px 0;
    /* حماية النصوص من التظليل */
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none; 
}

/* استثناء مربع النص من منع التحديد ليتمكن المستخدم من الكتابة */
textarea, input {
    -webkit-user-select: auto;
    -moz-user-select: auto;
    -ms-user-select: auto;
    user-select: auto;
}

.container {
    width: 100%;
    max-width: 650px;
    margin: 20px 0;
}

.tool-card {
    background: var(--card-bg);
    padding: 40px;
    border-radius: 28px;
    border: 1px solid var(--border-color);
    box-shadow: 0 25px 50px rgba(0,0,0,0.5);
}

.header {
    text-align: center;
    margin-bottom: 30px;
}

.icon-box {
    color: var(--primary-color);
    margin-bottom: 15px;
}

.icon-box svg {
    width: 44px;
    height: 44px;
}

.header h1 {
    font-size: 26px;
    font-weight: 700;
    letter-spacing: -0.5px;
    margin-bottom: 8px;
}

.header p {
    color: var(--text-muted);
    font-size: 15px;
}

/* Input Styles */
.textarea-container {
    margin-bottom: 20px;
    position: relative;
}

textarea {
    width: 100%;
    height: 180px;
    background: #111;
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 20px;
    color: var(--text-color);
    font-size: 16px;
    resize: vertical;
    outline: none;
    transition: all 0.3s ease;
    line-height: 1.6;
}

textarea:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 15px var(--accent-glow);
}

/* VS Code Style Floating Panel (Find & Replace) */
.fr-panel {
    display: none;
    position: absolute;
    top: 15px;
    right: 15px;
    background: #252525;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 12px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.8);
    z-index: 10;
    flex-direction: column;
    gap: 10px;
    width: 280px;
    animation: slideDown 0.2s ease-out;
}

.fr-panel.active {
    display: flex;
}

.fr-row {
    display: flex;
    gap: 6px;
}

.fr-row input {
    flex: 1;
    background: #111;
    border: 1px solid var(--border-color);
    color: var(--text-color);
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 13px;
    outline: none;
}

.fr-row input:focus {
    border-color: var(--primary-color);
}

.fr-action-btn, .icon-btn {
    background: #333;
    color: var(--text-color);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    cursor: pointer;
    font-size: 12px;
    transition: 0.2s;
}

.fr-action-btn { padding: 0 12px; font-weight: 600; }
.icon-btn { padding: 0 10px; font-weight: bold; color: var(--text-muted); }

.fr-action-btn:hover, .icon-btn:hover { 
    background: #444; 
    color: var(--primary-color); 
    border-color: var(--primary-color);
}

@keyframes slideDown {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Dashboard Stats */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
    margin-bottom: 25px;
}

.stat-box {
    background: #111;
    border: 1px solid var(--border-color);
    border-radius: 14px;
    padding: 20px 10px;
    text-align: center;
    transition: 0.3s;
}

.stat-box:hover {
    border-color: #444;
}

.stat-value {
    font-size: 28px;
    font-weight: 800;
    color: var(--primary-color);
    display: block;
    margin-bottom: 4px;
}

.stat-label {
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Keyword Density Table Styles */
.keyword-density-wrapper {
    margin-bottom: 25px;
    animation: fadeIn 0.4s ease;
}

.section-title {
    font-size: 12px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 12px;
    font-weight: 600;
}

.density-table {
    width: 100%;
    border-collapse: collapse;
    background: #111;
    border-radius: 14px;
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.density-table th, .density-table td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.density-table th {
    font-size: 12px;
    color: var(--primary-color);
    font-weight: 700;
    text-transform: uppercase;
    background: #151515;
}

.density-table td {
    font-size: 14px;
    color: var(--text-color);
}

.density-table tr:last-child td { border-bottom: none; }
.density-table tr:hover td { background: #181818; }

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-5px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Button Toolbar */
.toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 30px;
}

.toolbar-group-label {
    width: 100%;
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-top: 10px;
}

.tool-btn {
    flex: 1;
    min-width: 110px;
    background: #252525;
    color: var(--text-color);
    border: 1px solid var(--border-color);
    padding: 12px;
    border-radius: 10px;
    cursor: pointer;
    font-size: 13px;
    font-weight: 600;
    transition: 0.3s;
}

.tool-btn:hover { background: #333; border-color: #555; }

.secondary-btn { background: #1a1a1a; }
.secondary-btn:hover { background: #2a2a2a; color: var(--primary-color); }

.danger-btn:hover {
    background: rgba(255, 77, 77, 0.1);
    color: var(--danger-color);
    border-color: var(--danger-color);
}

.primary-outline { border-color: var(--primary-color); color: var(--primary-color); }
.primary-outline:hover { background: var(--primary-color); color: #000; }

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

.divider {
    border: 0;
    height: 1px;
    background: linear-gradient(to right, transparent, var(--border-color), transparent);
    margin: 30px 0;
}

/* Lorem Section */
.lorem-section { display: flex; flex-direction: column; gap: 20px; }
.lorem-controls { display: flex; align-items: center; justify-content: space-between; }
.lorem-controls label { font-size: 14px; color: var(--text-muted); }

.lorem-controls input {
    width: 70px;
    background: #111;
    border: 1px solid var(--border-color);
    color: var(--text-color);
    padding: 10px;
    border-radius: 10px;
    text-align: center;
    outline: none;
    font-weight: 700;
}

.lorem-controls input:focus { border-color: var(--primary-color); }

.main-btn {
    width: 100%;
    background: var(--primary-color);
    color: #000;
    border: none;
    padding: 18px;
    border-radius: 14px;
    font-weight: 800;
    font-size: 16px;
    cursor: pointer;
    transition: 0.3s;
    box-shadow: 0 8px 20px var(--accent-glow);
    text-transform: uppercase;
}

.main-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 25px var(--accent-glow);
    filter: brightness(1.1);
}

/* Scrollbar */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: #111; }
::-webkit-scrollbar-thumb { background: #333; border-radius: 10px; }
::-webkit-scrollbar-thumb:hover { background: var(--primary-color); }