/* PAGE HEADER */
        .page-header {
            background: #fff;
            border-bottom: 1px solid #eee;
            padding: 28px 20px 22px;
            text-align: center;
        }
        .page-header h1 {
            font-size: 28px;
            color: #1a1a2e;
            margin-bottom: 8px;
        }
        .page-header p {
            font-size: 15px;
            color: #666;
            max-width: 560px;
            margin: 0 auto;
        }

        /* SEARCH BAR */
        .search-wrap {
            max-width: 960px;
            margin: 20px auto 0;
            padding: 0 20px;
        }
        .search-box {
            display: flex;
            align-items: center;
            background: #fff;
            border: 2px solid #007bff;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: 0 2px 8px rgba(0,123,255,0.10);
        }
        .search-box input {
            flex: 1;
            padding: 13px 16px;
            font-size: 15px;
            border: none;
            outline: none;
            background: transparent;
            color: #333;
        }
        .search-box input::placeholder { color: #aaa; }
        .search-icon {
            padding: 0 16px;
            color: #007bff;
            font-size: 18px;
            pointer-events: none;
            user-select: none;
        }
        .search-count {
            max-width: 960px;
            margin: 8px auto 0;
            padding: 0 20px;
            font-size: 13px;
            color: #888;
            min-height: 20px;
        }

        /* A-Z JUMP BAR */
        .az-wrap {
            max-width: 960px;
            margin: 14px auto 0;
            padding: 0 20px;
        }
        .az-bar {
            display: flex;
            flex-wrap: wrap;
            gap: 4px;
            background: #fff;
            border: 1px solid #e0e0e0;
            border-radius: 8px;
            padding: 10px 12px;
        }
        .az-bar a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 30px;
            height: 30px;
            border-radius: 5px;
            font-size: 13px;
            font-weight: bold;
            text-decoration: none;
            color: #007bff;
            border: 1px solid #cfe2ff;
            background: #f0f7ff;
            transition: 0.2s ease;
            cursor: pointer;
        }
        .az-bar a:hover {
            background: #007bff;
            color: #fff;
            border-color: #007bff;
        }
        .az-bar a.disabled {
            color: #ccc;
            border-color: #eee;
            background: #fafafa;
            pointer-events: none;
            cursor: default;
        }

        /* MAIN */
        .main {
            max-width: 960px;
            margin: 20px auto 30px;
            padding: 0 20px;
        }

        /* NO RESULTS */
        .no-results {
            display: none;
            text-align: center;
            padding: 40px 20px;
            color: #888;
            font-size: 15px;
            background: #fff;
            border-radius: 8px;
            border: 1px solid #eee;
        }
        .no-results strong {
            display: block;
            font-size: 18px;
            color: #555;
            margin-bottom: 6px;
        }

        /* LETTER SECTION */
        .letter-section { margin-bottom: 28px; }
        .letter-heading {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 12px;
        }
        .letter-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: #007bff;
            color: #fff;
            font-size: 18px;
            font-weight: bold;
            border-radius: 6px;
            flex-shrink: 0;
        }
        .letter-heading hr {
            flex: 1;
            border: none;
            border-top: 1px solid #e0e0e0;
        }

        /* CALCULATOR GRID */
        .calc-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
            gap: 12px;
        }
        .calc-item {
            background: #fff;
            border: 1px solid #e0e0e0;
            border-radius: 8px;
            padding: 14px 16px;
            display: flex;
            align-items: center;
            gap: 12px;
            text-decoration: none;
            color: #333;
            transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
            box-shadow: 0 1px 4px rgba(0,0,0,0.04);
        }
        .calc-item:hover {
            border-color: #007bff;
            box-shadow: 0 3px 12px rgba(0,123,255,0.12);
            transform: translateY(-1px);
        }
        .calc-item:hover .calc-arrow { color: #007bff; }
        .calc-icon {
            font-size: 22px;
            flex-shrink: 0;
            width: 36px;
            text-align: center;
        }
        .calc-name {
            flex: 1;
            font-size: 14px;
            font-weight: bold;
            color: #1a1a2e;
            line-height: 1.3;
        }
        .calc-arrow {
            font-size: 16px;
            color: #ccc;
            flex-shrink: 0;
            transition: color 0.2s;
        }

        /* FOOTER */
        footer {
            text-align: center;
            padding: 25px;
            margin-top: 10px;
            background: #fff;
            border-top: 1px solid #ddd;
        }
        .footer-links {
            margin-bottom: 12px;
            display: flex;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
        }
        .footer-links a {
            text-decoration: none;
            color: #007bff;
            font-weight: bold;
            font-size: 14px;
        }
        .footer-links a:hover { text-decoration: underline; }
        .disclaimer { font-size: 12px; color: #888; margin-top: 10px; }

        /* MOBILE */
        @media (max-width: 700px) {
            .nav-toggle { display: flex; }
            nav .menu {
                display: none;
                flex-direction: column;
                gap: 4px;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: #fff;
                border-top: 1px solid #ddd;
                border-bottom: 1px solid #ddd;
                padding: 10px 16px;
                z-index: 100;
                box-shadow: 0 4px 12px rgba(0,0,0,0.08);
            }
            nav .menu.open { display: flex; }
            nav .menu a { padding: 10px 12px; border-radius: 6px; }
            nav .logo-text img { height: 36px; }
            .page-header h1 { font-size: 22px; }
            .az-bar a { width: 26px; height: 26px; font-size: 12px; }
            .calc-grid { grid-template-columns: 1fr; }
        }