/* Header Styles */
        .header {
            position: sticky;
            top: 0;
            height: 9vh;
            min-height: 70px;
            z-index: 100;
            background: rgba(15, 31, 27, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .header-container {
            width: 92vw;
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 1rem 0;
            height: 100%;
        }

        .brand {
            display: flex;
            align-items: center;
            width: 320px;
            flex-shrink: 0;
            min-width: 320px;
        }

        .logo {
            display: block;
            height: 2.8rem;
            width: auto;
            margin-right: 1rem;
            object-fit: contain;
            border-radius: var(--radius-sm);
            background: rgba(255, 255, 255, 0.1);
            padding: 0.2rem;
        }

        .brand-block {
            display: flex;
            flex-direction: column;
            gap: 0.15rem;
        }

        .brand-title {
            font-weight: 700;
            font-size: 1.1rem;
            letter-spacing: 0.01em;
            color: var(--textPrimary);
            line-height: 1.2;
        }

        .brand-subtitle {
            font-weight: 500;
            font-size: 0.75rem;
            letter-spacing: 0.02em;
            opacity: 0.85;
            color: var(--textSoft);
            line-height: 1.1;
        }

        .nav-links {
            display: flex;
            justify-content: flex-end;
            align-items: center;
            gap: 1.2rem;
            flex: 1;
            min-width: 0;
        }

        .nav-link {
            font-size: 0.95rem;
            color: var(--textPrimary);
            opacity: 0.95;
            text-decoration: none;
            transition: opacity 0.2s ease;
            white-space: nowrap;
        }

        .nav-link:hover {
            opacity: 1;
        }

        .nav-chip {
            padding: 0.6rem 1.5rem;
            border-radius: 25px;
            background: #ffffff;
            color: #550040;
            font-weight: 600;
            font-size: 0.9rem;
            text-decoration: none;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
            transition: all 0.3s ease;
            white-space: nowrap;
        }

        .nav-chip:hover {
            background: #550040;
            color: #ffffff;
            transform: translateY(-1px);
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
        }

        .nav-button {
            padding: 0.6rem 1.5rem;
            border-radius: 25px;
            background: #550040;
            color: #ffffff;
            font-weight: 600;
            font-size: 0.9rem;
            text-decoration: none;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
            transition: all 0.3s ease;
            white-space: nowrap;
        }

        .nav-button:hover {
            background: #ffffff;
            color: #550040;
            transform: translateY(-1px);
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
        }