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

:root {
    --bg: #0a0a0f;
    --surface: #12121a;
    --surface-2: #1a1a26;
    --border: #2a2a3a;
    --border-focus: #5b5bf0;
    --accent: #6c6cf0;
    --accent-hover: #8080ff;
    --accent-glow: rgba(108, 108, 240, 0.15);
    --text: #e4e4ef;
    --text-dim: #7a7a8f;
    --text-muted: #4a4a5f;
    --red: #f05050;
    --green: #50f0a0;
    --mono: 'JetBrains Mono', monospace;
    --sans: 'Inter', -apple-system, sans-serif;
}

body {
    font-family: var(--sans);
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding: 40px 20px;
}

.container {
    width: 100%;
    max-width: 800px;
}

header {
    margin-bottom: 32px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 8px;
}

.logo-icon {
    color: var(--accent);
    font-size: 20px;
    opacity: 0.8;
}

h1 {
    font-size: 28px;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.subtitle {
    color: var(--text-dim);
    font-size: 14px;
    line-height: 1.5;
}

.subtitle code {
    font-family: var(--mono);
    font-size: 13px;
    background: var(--surface-2);
    padding: 2px 6px;
    border-radius: 4px;
    border: 1px solid var(--border);
    color: var(--accent);
}

main {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.panel {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
    transition: border-color 0.2s;
}

.panel:focus-within {
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 16px;
    border-bottom: 1px solid var(--border);
    background: var(--surface-2);
}

.panel-label {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--text-dim);
}

textarea {
    width: 100%;
    min-height: 180px;
    padding: 16px;
    background: transparent;
    border: none;
    color: var(--text);
    font-family: var(--mono);
    font-size: 13px;
    line-height: 1.7;
    resize: vertical;
    outline: none;
}

textarea::placeholder {
    color: var(--text-muted);
}

textarea[readonly] {
    cursor: default;
}

.action-bar {
    display: flex;
    align-items: center;
    gap: 16px;
}

.btn-redact {
    padding: 12px 32px;
    background: var(--accent);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    font-family: var(--sans);
    cursor: pointer;
    transition: all 0.15s;
    letter-spacing: 0.3px;
}

.btn-redact:hover {
    background: var(--accent-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 16px var(--accent-glow);
}

.btn-redact:active {
    transform: translateY(0);
}

.btn-clear,
.btn-copy {
    padding: 4px 12px;
    background: transparent;
    color: var(--text-dim);
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 12px;
    font-weight: 500;
    font-family: var(--sans);
    cursor: pointer;
    transition: all 0.15s;
}

.btn-clear:hover,
.btn-copy:hover {
    color: var(--text);
    border-color: var(--text-dim);
    background: var(--surface-2);
}

.btn-copy.copied {
    color: var(--green);
    border-color: var(--green);
}

.stats {
    font-size: 13px;
    color: var(--text-dim);
    font-family: var(--mono);
}

.stats .count {
    color: var(--accent);
    font-weight: 500;
}

@media (max-width: 600px) {
    body {
        padding: 20px 12px;
    }

    h1 {
        font-size: 22px;
    }

    textarea {
        min-height: 140px;
        font-size: 12px;
    }

    .btn-redact {
        padding: 10px 24px;
    }
}