:root {
            --bg:      #080b0f;
            --bg2:     #0d1117;
            --bg3:     #111820;
            --bg4:     #161e28;
            --accent:  #e8f542;
            --accent2: #b8c435;
            --blue:    #5bb8f5;
            --blue2:   #3a9fd6;
            --border:  rgba(232,245,66,0.1);
            --border-h:rgba(232,245,66,0.35);
            --text:    #d0dce8;
            --muted:   #4a5a6a;
            --mono:    'Space Mono', monospace;
            --display: 'Syne', sans-serif;
            --red:     #ff4f4f;
            --orange:  #ff8c42;
            --yellow:  #ffd166;
            --green:   #06d6a0;
        }

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

        body {
            font-family: var(--mono);
            background: var(--bg);
            color: var(--text);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        /* ── HEADER ── */
        header {
            background: var(--bg2);
            border-bottom: 1px solid var(--border);
            padding: 0 24px;
            height: 86px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-shrink: 0;
            position: sticky;
            top: 0;
            z-index: 100;
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .brand-icon {
            width: 32px;
            height: 32px;
            border-radius: 6px;
            flex-shrink: 0;
            animation: breathe 3s ease-in-out infinite;
        }

        @keyframes breathe {
            0%, 100% { transform: scale(1); }
            50%      { transform: scale(1.12); }
        }

        .brand-name {
            font-family: var(--display);
            font-size: 20px;
            font-weight: 700;
            letter-spacing: 2px;
            color: #fff;
        }

        .brand-name span { color: var(--accent); }

        .brand-sub {
            font-size: 9px;
            color: var(--muted);
            letter-spacing: 2px;
            margin-top: 1px;
        }

        .header-badge {
            font-size: 10px;
            font-family: var(--mono);
            padding: 5px 12px;
            border-radius: 3px;
            background: rgba(6,214,160,0.1);
            border: 1px solid rgba(6,214,160,0.3);
            color: var(--green);
            letter-spacing: 1px;
        }

        .header-right {
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .lang-switch {
            display: flex;
            gap: 4px;
            font-family: var(--mono);
        }

        .lang-switch a {
            font-size: 10px;
            padding: 5px 9px;
            border-radius: 3px;
            border: 1px solid var(--border);
            color: var(--muted);
            text-decoration: none;
            letter-spacing: 1px;
            transition: color .15s, border-color .15s;
        }

        .lang-switch a:hover {
            color: var(--text);
            border-color: var(--border-h);
        }

        .lang-switch a.active {
            color: var(--accent);
            border-color: var(--border-h);
            background: rgba(232,245,66,0.08);
        }

        /* ── MAIN CONTENT ── */
        main {
            flex: 1;
            padding: 40px 24px 60px;
            max-width: 680px;
            margin: 0 auto;
            width: 100%;
        }

        /* ── PAGE TITLE ── */
        .page-title {
            margin-bottom: 32px;
        }

        .page-title h1 {
            font-family: var(--display);
            font-size: 32px;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.5px;
            margin-bottom: 6px;
        }

        .page-title h1 span { color: var(--accent); }

        .page-title p {
            font-size: 12px;
            color: var(--muted);
            letter-spacing: 1px;
            line-height: 1.6;
        }

        /* ── PRIVACY BADGE ── */
        .privacy-badge {
            display: flex;
            align-items: center;
            gap: 10px;
            background: rgba(6,214,160,0.06);
            border: 1px solid rgba(6,214,160,0.2);
            border-left: 3px solid var(--green);
            border-radius: 4px;
            padding: 10px 14px;
            margin-bottom: 28px;
            font-size: 11px;
            color: rgba(6,214,160,0.9);
            letter-spacing: 0.5px;
        }

        .privacy-badge strong { color: var(--green); }

        /* ── SECTION HEADER ── */
        .section-header {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 14px;
        }

        .section-header-line {
            flex: 1;
            height: 1px;
            background: var(--border);
        }

        .section-label {
            font-family: var(--display);
            font-size: 10px;
            font-weight: 700;
            letter-spacing: 3px;
            color: var(--muted);
            text-transform: uppercase;
        }

        /* ── GENERATOR SECTION ── */
        .generator-section {
            background: var(--bg3);
            border: 1px solid var(--border);
            border-radius: 6px;
            padding: 20px;
            margin-bottom: 24px;
        }

        .length-buttons {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 8px;
            margin-bottom: 16px;
        }

        .length-btn {
            padding: 10px 4px;
            border: 1px solid var(--border);
            background: var(--bg);
            border-radius: 4px;
            cursor: pointer;
            font-family: var(--mono);
            font-size: 12px;
            color: var(--muted);
            transition: all 0.15s;
            text-align: center;
            letter-spacing: 0.5px;
        }

        .length-btn:hover {
            border-color: var(--border-h);
            color: var(--text);
        }

        .length-btn.active {
            background: var(--accent);
            border-color: var(--accent);
            color: #000;
            font-weight: 700;
        }

        .charset-toggles {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 8px;
            margin-bottom: 14px;
        }

        .toggle-btn {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 4px;
            padding: 12px 8px;
            border: 1px solid var(--border);
            background: var(--bg);
            border-radius: 4px;
            cursor: pointer;
            font-family: var(--mono);
            font-size: 11px;
            color: var(--muted);
            transition: all 0.15s;
            user-select: none;
        }

        .toggle-btn:hover:not(.active) {
            border-color: var(--border-h);
            color: var(--text);
        }

        .toggle-btn.active {
            background: rgba(232,245,66,0.08);
            border-color: var(--border-h);
            color: var(--accent);
        }

        .toggle-icon { font-size: 16px; }
        .toggle-text { font-weight: 700; letter-spacing: 1px; }
        .toggle-sample { font-size: 9px; opacity: 0.6; }

        .charset-warning {
            font-size: 11px;
            color: var(--red);
            text-align: center;
            margin-bottom: 12px;
            min-height: 16px;
            letter-spacing: 0.5px;
        }

        .generate-btn {
            width: 100%;
            padding: 13px;
            background: var(--accent);
            color: #000;
            border: none;
            border-radius: 4px;
            font-family: var(--mono);
            font-size: 12px;
            font-weight: 700;
            letter-spacing: 2px;
            cursor: pointer;
            transition: all 0.15s;
        }

        .generate-btn:hover {
            background: var(--accent2);
            transform: translateY(-1px);
        }

        .generate-btn:active { transform: translateY(0); }
        .generate-btn:disabled { opacity: 0.4; cursor: not-allowed; transform: none; }

        /* ── PASSWORD INPUT ── */
        .input-section { margin-bottom: 20px; }

        .input-wrapper {
            position: relative;
        }

        .input-wrapper input {
            width: 100%;
            padding: 14px 90px 14px 16px;
            background: var(--bg3);
            border: 1px solid var(--border);
            border-radius: 4px;
            font-family: var(--mono);
            font-size: 15px;
            color: var(--accent);
            outline: none;
            transition: all 0.2s;
            caret-color: var(--accent);
            letter-spacing: 2px;
        }

        .input-wrapper input::placeholder {
            color: var(--muted);
            letter-spacing: 1px;
            font-size: 12px;
        }

        .input-wrapper input:focus {
            border-color: var(--border-h);
            box-shadow: 0 0 0 3px rgba(232,245,66,0.06);
        }

        .input-actions {
            position: absolute;
            right: 12px;
            top: 50%;
            transform: translateY(-50%);
            display: flex;
            gap: 8px;
        }

        .input-actions span {
            cursor: pointer;
            font-size: 18px;
            opacity: 0.5;
            transition: opacity 0.15s;
            user-select: none;
        }

        .input-actions span:hover { opacity: 1; }
        .input-actions span.copied { opacity: 1; }

        /* ── STRENGTH METER ── */
        .strength-meter {
            height: 3px;
            background: var(--bg4);
            border-radius: 2px;
            overflow: hidden;
            margin-top: 8px;
        }

        .strength-meter-fill {
            height: 100%;
            width: 0%;
            transition: width 0.4s cubic-bezier(0.4,0,0.2,1), background-color 0.4s;
            border-radius: 2px;
        }

        /* ── RESULTS ── */
        #results { display: none; }

        /* Entropy big display */
        .entropy-display {
            background: var(--bg3);
            border: 1px solid var(--border);
            border-top: 3px solid var(--accent);
            border-radius: 4px;
            padding: 24px;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }

        .entropy-number {
            font-family: var(--display);
            font-size: 64px;
            font-weight: 800;
            color: var(--accent);
            line-height: 1;
            letter-spacing: -2px;
        }

        .entropy-unit {
            font-size: 11px;
            color: var(--muted);
            letter-spacing: 2px;
            margin-top: 4px;
        }

        .strength-text {
            font-family: var(--display);
            font-size: 18px;
            font-weight: 700;
            text-align: right;
        }

        /* ── STATS GRID ── */
        .stats-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 8px;
            margin-bottom: 16px;
        }

        .stat-card {
            background: var(--bg3);
            border: 1px solid var(--border);
            border-radius: 4px;
            padding: 14px 16px;
        }

        .stat-label {
            font-size: 9px;
            letter-spacing: 2px;
            color: var(--muted);
            text-transform: uppercase;
            margin-bottom: 6px;
        }

        .stat-value {
            font-family: var(--display);
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            word-break: break-all;
        }

        .stat-value.crack-time { color: var(--blue); }

        /* ── CHECKMARKS ── */
        .checks-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 6px;
            margin-bottom: 24px;
        }

        .check-item {
            display: flex;
            align-items: center;
            gap: 8px;
            background: var(--bg3);
            border: 1px solid var(--border);
            border-radius: 4px;
            padding: 8px 12px;
            font-size: 11px;
            color: var(--muted);
            transition: all 0.2s;
        }

        .check-item.pass {
            border-color: rgba(6,214,160,0.25);
            color: var(--text);
        }

        .check-icon {
            width: 18px;
            height: 18px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 10px;
            font-weight: 700;
            flex-shrink: 0;
            background: var(--bg4);
            color: var(--muted);
            transition: all 0.2s;
        }

        .check-item.pass .check-icon {
            background: var(--green);
            color: #000;
        }

        .check-item.fail .check-icon {
            background: rgba(255,79,79,0.15);
            color: var(--red);
            border: 1px solid rgba(255,79,79,0.3);
        }

        /* ── INFO BOX ── */
        .info-box {
            background: var(--bg3);
            border: 1px solid var(--border);
            border-left: 3px solid var(--blue);
            border-radius: 4px;
            padding: 18px 20px;
            font-size: 12px;
            color: var(--text);
            line-height: 1.8;
        }

        .info-box h3 {
            font-family: var(--display);
            font-size: 13px;
            font-weight: 700;
            color: var(--blue);
            letter-spacing: 1px;
            margin-bottom: 10px;
        }

        .info-box ul {
            list-style: none;
            margin: 10px 0;
        }

        .info-box ul li {
            padding: 3px 0;
            padding-left: 14px;
            position: relative;
            color: var(--muted);
        }

        .info-box ul li::before {
            content: '▸';
            position: absolute;
            left: 0;
            color: var(--blue);
            font-size: 10px;
        }

        .info-box ul li strong { color: var(--text); }

        .info-box .formula {
            margin-top: 10px;
            padding: 8px 12px;
            background: var(--bg);
            border-radius: 3px;
            font-size: 11px;
            color: var(--accent);
            letter-spacing: 0.5px;
        }

        /* ── FOOTER ── */
        footer {
            border-top: 1px solid var(--border);
            background: var(--bg2);
            padding: 36px 24px 28px;
            text-align: center;
            flex-shrink: 0;
        }

        .footer-content {
            max-width: 860px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 14px;
        }

        .footer-links {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 4px 0;
            align-items: center;
        }

        .footer-links a {
            text-decoration: none;
            color: var(--muted);
            font-family: var(--mono);
            font-size: 10px;
            letter-spacing: 1px;
            text-transform: uppercase;
            transition: color 0.15s;
        }

        .footer-links a:hover { color: var(--accent); }

        .footer-links a:not(:last-child)::after {
            content: '|';
            margin: 0 0.6em;
            opacity: 0.25;
            color: var(--muted);
        }

        .footer-copy {
            font-size: 10px;
            color: var(--muted);
            letter-spacing: 1px;
        }

        /* ── RESPONSIVE ── */
        @media (max-width: 600px) {
            main { padding: 28px 16px 48px; }
            .page-title h1 { font-size: 24px; }
            .entropy-number { font-size: 48px; }
            .length-buttons { grid-template-columns: repeat(2, 1fr); }
            .checks-grid { grid-template-columns: 1fr; }
            .stats-grid { grid-template-columns: 1fr; }
            .entropy-display { flex-direction: column; align-items: flex-start; gap: 8px; }
            .strength-text { text-align: left; }
        }