:root {
    --bg: #0F0F14;
    --surface: #18181F;
    --border: rgba(59, 130, 246, .12);
    --text: #E0E4F0;
    --text2: #7B8BB8;
    --text3: #3D4A6B;
    --primary: #3B82F6;
    --sans: 'Inter', system-ui, sans-serif;
    --r: 12px;
    --rs: 8px;
    --t: 200ms ease
}

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

html {
    font-size: 15px;
    -webkit-font-smoothing: antialiased
}

body {
    font-family: var(--sans);
    background: var(--bg);
    color: var(--text);
    min-height: 100vh
}

.app-header {
    background: var(--surface);
    border-bottom: 1px solid var(--border)
}

.header-inner {
    max-width: 720px;
    margin: 0 auto;
    padding: 0 24px;
    height: 56px;
    display: flex;
    align-items: center
}

h1 {
    font-size: 1.05rem;
    font-weight: 700
}

.app-main {
    max-width: 720px;
    margin: 0 auto;
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 14px
}

.stats-bar {
    display: flex;
    gap: 6px;
    flex-wrap: wrap
}

.stat {
    flex: 1;
    min-width: 80px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--rs);
    padding: 12px;
    text-align: center
}

.stat-val {
    display: block;
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--primary)
}

.stat-label {
    font-size: .65rem;
    color: var(--text3);
    text-transform: uppercase;
    font-weight: 600;
    letter-spacing: .5px
}

.editor-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--r)
}

.editor-card textarea {
    width: 100%;
    padding: 20px;
    background: transparent;
    border: none;
    font-family: var(--sans);
    font-size: .95rem;
    color: var(--text);
    resize: vertical;
    line-height: 1.7
}

.editor-card textarea:focus {
    outline: none
}

.editor-card textarea::placeholder {
    color: var(--text3)
}

.time-bar {
    display: flex;
    gap: 16px;
    font-size: .82rem;
    color: var(--text2)
}

.density-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--r);
    padding: 16px
}

.density-card h2 {
    font-size: .78rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--text3);
    text-transform: uppercase
}

.density-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 6px
}

.kw-chip {
    padding: 4px 10px;
    background: var(--bg);
    border-radius: 999px;
    font-size: .75rem;
    color: var(--text2)
}

.kw-chip .kw-count {
    margin-left: 4px;
    color: var(--primary);
    font-weight: 700
}